SELIGMAN HENDERSON GLOBAL FUND SERIES INC
485BPOS, 1999-03-01
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                                                               File No. 33-44186
                                                                        811-6485

                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

- --------------------------------------------------------------------------------

                                    FORM N-1A

         REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933             |X|


                  Pre-Effective Amendment No.  __                            |_|

   
                  Post-Effective Amendment No.  27                           |X|
    

         REGISTRATION STATEMENT UNDER THE INVESTMENT COMPANY ACT OF 1940     |X|

   
                  Amendment No.  29                                          |X|
    

- --------------------------------------------------------------------------------

                   SELIGMAN HENDERSON GLOBAL FUND SERIES, INC.
               (Exact name of registrant as specified in charter)

- --------------------------------------------------------------------------------

                    100 PARK AVENUE, NEW YORK, NEW YORK 10017
                     (Address of principal executive office)

- --------------------------------------------------------------------------------

                 Registrant's Telephone Number: 212-850-1864 or
                             Toll Free: 800-221-2450

- --------------------------------------------------------------------------------

                            THOMAS G. ROSE, Treasurer
                                 100 Park Avenue
                            New York, New York 10017
                     (Name and address of agent for service)

- --------------------------------------------------------------------------------

 It is proposed that this filing will become effective (check appropriate box):

<TABLE>
<S>                                            <C>
                                              
|_|  immediately upon filing pursuant          |_|  on (date) pursuant to paragraph    
     to paragraph (b)                               (a)(1)                                 
                                          
                                                                                           
|X|  on  March 1, 1999 pursuant (b)            |_|  75 days after filing pursuant to       
     to paragraph                                   paragraph (a)(2)                       
    
|_|  60 days after filing pursuant to                                                      
     paragraph (a)(1)                          |_|  on (date) pursuant to paragraph (a)(2) 
                                                    of Rule 485.                           
</TABLE>

     If appropriate, check the following box:

|_|  This  post-effective  amendment  designates  a  new  effective  date  for a
     previously filed post-effective amendment.




<PAGE>




   
              SELIGMAN
- ----------------------
             Henderson
             ---------
           Global Fund
          Series, Inc.


    International Fund

 Emerging Markets Fund

         Global Growth
    Opportunities Fund
    

        Global Smaller
        Companies Fund

Global Technology Fund


   
The Securities and Exchange Commission has neither approved nor disapproved
these Funds, and it has not determined the prospectus to be accurate or
adequate. Any representation to the contrary is a criminal offense.
    

An investment in these Funds or any other fund cannot provide a complete
investment program. The suitability of an investment in a Fund should be
evaluated based on the investment objective, strategies and risks described
herein, considered in light of all of the other investments in your portfolio,
as well as your risk tolerance, financial goals, and time horizons. We recommend
that you consult your financial advisor to determine if one or more of these
Funds is suitable for you.

EQSH1 3/99


                                                      [PHOTOGRAPH]

                                                       Prospectus
                                                      March 1, 1999

                                                        ---------

                                                        Investing
                                                    Around the World
                                                       for Capital
                                                      Appreciation

                                                       managed by

                                                  J. & W. SELIGMAN & CO.
                                                       INCORPORATED
                                                    ESTABLISHED 1864


<PAGE>


Table of Contents
   
This  prospectus  contains  information  about  Seligman  Henderson  Global Fund
Series, Inc., which consists of five separate and distinct funds.

The Funds


A discussion of the investment strategies, risks,
performance and expenses of the Funds.
     Seligman Henderson International Fund       2
     Seligman Henderson Emerging Markets Growth Fund       6
     Seligman Henderson Global Growth Opportunities Fund       10
     Seligman Henderson Global Smaller Companies Fund       14
     Seligman Henderson Global Technology Fund       18
     Management of the Funds       22
     Year 2000       24
     Euro Conversion       25

Shareholder Information
     Deciding Which Class of Shares to Buy       26
     Pricing of Fund Shares       28
     Opening Your Account       28
     How to Buy Additional Shares       29
     How to Exchange Shares Among
        the Seligman Mutual Funds       30
     How to Sell Shares       30
     Important Policies That May Affect Your Account       31
     Dividends and Capital Gain Distributions       32
     Taxes       32
     The Seligman Mutual Funds       33
Financial Highlights       34
How to Contact Us       41
For More Information       back cover
    


TIMES CHANGE ... VALUES ENDURE


<PAGE>


The Funds

       

   
SELIGMAN HENDERSON INTERNATIONAL FUND
    

INVESTMENT OBJECTIVE/PRINCIPAL STRATEGIES

   
The International Fund's objective is long-term capital appreciation.

The Fund uses the following principal strategies to seek its objective:

The Fund invests primarily in equity securities of non-US issuers. The Fund may
invest in any country; however, it typically will not invest in the US. It
generally invests in several countries in different geographic regions.

The Fund generally invests in the common stock of medium- to large-sized
companies in the principal international markets. However, it may also invest in
companies with a lower market capitalization or in smaller regional or emerging
markets.

The Fund uses a top-down investment style. This means the investment manager
concentrates first on regional and country allocations, then on industry
sectors, followed by fundamental analysis of individual companies. The Fund's
investments are allocated among geographic regions or countries based on such
factors as:
    

     o    Relative economic growth potential of the various economies and
          securities markets

     o    Political, financial, and social conditions influencing investment
          opportunities

     o    Investor sentiment 

     o    Prevailing interest rates and expected levels of inflation

     o    Market prices relative to historic averages

   
In selecting individual securities, the investment manager looks to identify
companies that it believes display one or more of the following:

     o    Attractive valuations relative to earnings forecasts or other
          valuation criteria (e.g., return on equity)
    

     o    Quality management and equity ownership by executives

   
     o    Unique competitive advantages (e.g., market share, proprietary
          products)

    
     o    Market liquidity

     o    Potential for improvement in overall operations
   

The Fund generally sells a stock if the investment manager believes its target
price has been reached, its earnings are disappointing, its revenue growth has
slowed, or its underlying fundamentals have deteriorated. The Fund may also sell
a stock if the investment manager believes that negative country or regional
factors may affect a company's outlook, or to meet cash requirements.

The Fund may invest in all types of securities, many of which will be
denominated in currencies other than the US dollar. The securities may be listed
on a US or foreign stock exchange or traded in US or foreign over-the-counter
markets. The Fund normally concentrates its investments in common stocks;
however, it may invest in other types of equity securities, including securities
convertible into or exchangeable for common stock, depositary receipts, and
rights and warrants to purchase common stock. The Fund also may invest up to 25%
of its assets in preferred stock and investment grade or comparable quality debt
securities.

The Fund may, from time to time, take temporary defensive positions that are
inconsistent with its principal strategies in seeking to minimize extreme
volatility caused by adverse market, economic, or other conditions. This could
prevent the Fund from achieving its objective.
    



                                       2
<PAGE>

       

   

The Fund may invest up to 15% of its net assets in illiquid securities (i.e.,
securities that cannot be readily sold), and may from time to time enter into
forward foreign currency exchange contracts in an attempt to manage the risk of
adverse changes in currencies. The Fund may also purchase put options (which
gives the Fund the right to sell an underlying security at a particular price
during a fixed period) in an attempt to hedge against a decline in the price of
securities it holds in its portfolio. Foreign currency forward contracts and put
options on securities may not be available to the Fund on reasonable terms in
many situations and the Fund may frequently choose not to enter into such
contracts or purchase such options even when they are available.

The Fund may change its principal  strategies if the Board of Directors believes
doing so is consistent with the Fund's  objective.  The Fund's  objective may be
changed only with the approval of shareholders.

As with any  mutual  fund,  there is no  guarantee  the Fund  will  achieve  its
objective.
    

PRINCIPAL RISKS

Stock prices fluctuate. Therefore, as with any fund that invests in stocks, the
Fund's net asset value will fluctuate. You may experience a decline in the value
of your investment and you could lose money.

   
Investing in securities of foreign issuers involves risks not associated
with US investments, including currency fluctuation,  local withholding and
other taxes, different financial reporting practices and regulatory
standards, high costs of trading, changes in political conditions,
expropriation, investment and repatriation restrictions, and settlement and
custody risks.
    

The Fund seeks to limit the risk of investing in foreign securities by
diversifying its investments among different regions and countries.
Diversification reduces the effect events in any one country will have on the
Fund's entire investment portfolio. However, a decline in the value of the
Fund's investments in one country may offset potential gains from investments in
another country.

The Fund may be negatively affected by the broad investment environment in the
international or US securities markets, which may be influenced by interest
rates, inflation, politics, fiscal policy, and current events.

To the extent the Fund invests some of its assets in higher-risk securities,
such as illiquid securities, it may be subject to higher price volatility.
   
The Fund may actively and frequently trade securities in its portfolio to carry
out its principal strategies. A high portfolio turnover rate results in
correspondingly greater transaction costs which may increase the Fund's
expenses. There may also be adverse tax consequences for investors in the Fund
due to an increase in short-term capital gains.
    
An investment in the Fund is not a deposit in a bank and is not insured or
guaranteed by the Federal Deposit Insurance Corporation or any other government
agency.



                                       3
<PAGE>


   
SELIGMAN HENDERSON INTERNATIONAL FUND
    

PAST PERFORMANCE

   
The Fund offers three classes of shares. The information below provides some
indication of the risks of investing in the Fund by showing how the performance
of Class A shares has varied year to year, as well as how each Class's
performance compares to two widely-used measures of performance. Although the
Fund's fiscal year ends on October 31, the performance is provided on a calendar
year basis to assist you in comparing the returns of the Fund with the returns
of other mutual funds. How the Fund has performed in the past, however, is not
necessarily an indication of how the Fund will perform in the future. Total
returns will vary between each Class of shares due to the different fees and
expenses of each Class.
    

The Class A annual total returns presented in the bar chart do not reflect the
effect of any sales charges. If these charges were included, the returns would
be less. The average annual total returns presented in the table below the chart
do reflect the effect of the applicable sales charges. Both the bar chart and
table assume that all dividends and capital gain distributions were reinvested.

                  Class A Annual Total Returns - Calendar Years


 [THE FOLLOWING TABLE WAS REPRESENTED BY A BAR CHART IN THE PRINTED MATERIAL.]


                      1993 ........................   37.35%
                      1994 ........................    2.63%
                      1995 ........................    9.96%
                      1996 ........................    7.77%
                      1997 ........................    7.65%
                      1998 ........................   13.73%


   
          Best calendar quarter return: 17.38% - quarter ended 12/31/98
         Worst calendar quarter return: -17.53% - quarter ended 9/30/98
    

<TABLE>
   
<CAPTION>
- ------------------------------------------------------------------------------------------------------------------------------------
              Average Annual Total Returns - Periods Ended 12/31/98
                                                                                  CLASS A            CLASS B            CLASS D
                                                      ONE           FIVE      SINCE INCEPTION    SINCE INCEPTION    SINCE INCEPTION
                                                      YEAR          YEARS         4/7/92             4/22/96            9/21/93
                                                      ----          -----     ---------------    ---------------    ---------------
<S>                                                   <C>            <C>           <C>                <C>                <C>
Class A                                                8.33%         7.24%         10.53%              n/a                n/a
Class B                                                7.64           n/a            n/a              6.21%               n/a
Class D                                               11.64          7.37            n/a               n/a               8.65%
MSCI EAFE Index                                       20.33          9.50          11.55(1)           8.15(2)            9.22(3)
Lipper International Funds Average                    12.80          7.78          10.66(1)           8.31(2)            9.22(3)

The Morgan Stanley Capital International EAFE(Europe, Australasia, Far East)
Index (MSCI EAFE Index) and the Lipper International Funds Average are unmanaged
benchmarks that assume reinvestment of dividends. The Lipper International Funds
Average excludes the effect of sales charges and the MSC IEAFE Index excludes
the effect of fees and sales charges. The MSCI EAFE Index measures the
performance of stocks in 20 developed markets in Europe, Australasia, and the
Far East. The Lipper International Funds Average measures the performance of
mutual funds which invest in equity securities of companies whose primary
trading markets are outside the US.

(1) From 3/31/92.
(2) From 4/30/96.
(3) From 9/30/93.
- ------------------------------------------------------------------------------------------------------------------------------------
</TABLE>
    



                                       4
<PAGE>


       

FEES AND EXPENSES

   
The table below summarizes the fees and expenses that you may pay as a
shareholder of the Fund. Each Class of shares has its own sales charge schedule
and is subject to different ongoing 12b-1 fees. Shareholder fees are charged
directly to you. Annual fund operating expenses are deducted from Fund assets
and are therefore paid indirectly by you and other shareholders of the Fund.
    

<TABLE>
<CAPTION>
Shareholder Fees                                                                    Class A      Class B      Class D
- -----------------                                                                   -------      -------      -------
<S>                                                                                  <C>          <C>          <C>
Maximum Sales Charge (Load) on Purchases
  (as a % of offering price)                                                         4.75%(1)      none         none
Maximum Deferred Sales Charge (Load) (CDSC) on Redemptions
  (as a % of original purchase price or current net asset value,
  whichever is less)                                                                  none(1)        5%           1%

<CAPTION>
Annual Fund Operating Expenses for Fiscal 1998
- ----------------------------------------------
(as a percentage of average net assets)
<S>                                                                                  <C>          <C>          <C>
   
Management Fees                                                                      1.00%        1.00%        1.00%
Distribution and/or Service (12b-1) Fees                                              .21%        1.00%        1.00%
Other Expenses                                                                        .55%         .55%         .55%
                                                                                     -----        -----        -----
Total Annual Fund Operating Expenses                                                 1.76%(2)     2.55%        2.55%
                                                                                     =====        =====        =====
</TABLE>
    

(1)  If you buy Class A shares for $1,000,000 or more, you do not pay an initial
     sales charge, but your shares will be subject to a 1% CDSC if sold within
     18 months.

   
(2)  This amount reflects total annual fund operating expenses paid by the Fund
     for fiscal 1998, absent a one-time reimbursement to the Fund of expenses
     paid in prior years. This reimbursement had the effect of decreasing the
     Fund's actual total operating expenses to 1.69% for fiscal 1998.
    

Example
- -------

   
This example is intended to help you compare the expenses of investing in the
Fund with the expenses of investing in other mutual funds. It assumes (1) you
invest $10,000 in the Fund for each period and then sell all of your shares at
the end of that period, (2) your investment has a 5% return each year, and (3)
the Fund's operating expenses remain the same. Although your actual expenses may
be higher or lower, based on these assumptions your expenses would be:

               1 Year      3 Years    5 Years    10 Years
               ------      -------    -------    --------
Class A         $645       $1,003      $1,384     $2,450
Class B          758        1,093       1,555      2,692+
Class D          358          793       1,355      2,885

If you did not sell your shares at the end of each period, your expenses would
be:

               1 Year      3 Years    5 Years    10 Years
               ------      -------    -------    --------
Class A         $645       $1,003      $1,384     $2,450
Class B          258          793       1,355      2,692+
Class D          258          793       1,355      2,885
    

+    Class B shares will automatically convert to Class A shares after eight
     years.

       


                                       5
<PAGE>


   
SELIGMAN HENDERSON EMERGING MARKETS GROWTH FUND
    

INVESTMENT OBJECTIVE/PRINCIPAL STRATEGIES

   
The Emerging Markets Growth Fund's objective is long-term capital appreciation.

The Fund uses the following principal strategies to seek its objective:
    

The Fund generally invests at least 65% of its assets in equity securities of
companies that conduct their principal business activities in emerging markets.

- --------------------------------------------------------------------------------
Emerging Market:

   
A market in a developing country. Developing countries are those classified by
the World Bank as lower income economies, regardless of their particular stage
of development. Lower income economies are currently defined as those with 1996
per capita Gross National Product (GNP) of US $9,385 or less.
- --------------------------------------------------------------------------------

The Fund will focus its investments in those developing countries in which the
investment manager believes the economies are developing strongly and markets
are becoming more liquid. The Fund seeks to benefit from policies of economic
development being adopted in many developing countries. These policies include
domestic price reform, reducing internal budget deficits, privatization,
encouraging foreign investments, and developing capital markets.

The Fund uses a top-down  investment  style.  This means the investment  manager
concentrates  first  on  regional  and  country  allocations,  then on  industry
sectors, followed by fundamental analysis of individual companies.
    

The Fund's investments are allocated among geographic regions or countries based
on such factors as:

     o    Relative economic growth potential of the various economies and
          securities markets

     o    Political, financial, and social conditions influencing investment
          opportunities

     o    Investor sentiment

     o    Prevailing interest rates and expected levels of inflation

     o    Market prices relative to historic averages

   
In selecting individual securities, the investment manager looks to identify
companies that it believes display one or more of the following:

     o    Attractive valuations relative to earnings forecasts or other
          valuation criteria (e.g., return on equity)
    

     o    Quality management and equity ownership by executives

   
     o    Unique competitive advantages (e.g., market share, proprietary
          products)

    
     o    Market liquidity

     o    Potential for improvement in overall operations
   

The Fund generally sells a stock if the investment manager believes its target
price has been reached, its earnings are disappointing, its revenue growth has
slowed, or its underlying fundamentals have deteriorated. The Fund may also sell
a stock if the investment manager believes that negative country or regional
factors may affect a company's outlook, or to meet cash requirements.

The Fund may invest in all types of securities, many of which will be
denominated in currencies other than the US dollar. The securities may be listed
on a US or foreign stock exchange or traded in US or foreign over-the-counter
markets. The Fund normally concentrates its investments in common stocks;
however, it may invest in other types of equity securities, including securities
convertible into or exchangeable for common stock, depositary receipts, and
rights and warrants to purchase common stock. The Fund also may invest up to 25%
of its assets in preferred stock and investment grade or comparable quality debt
securities.
    



                                       6
<PAGE>

       

   

The Fund may, from time to time, take temporary defensive positions that are
inconsistent with its principal strategies in seeking to minimize extreme
volatility caused by adverse market, economic, or other conditions. This could
prevent the Fund from achieving its objective.

The Fund may invest up to 15% of its net assets in illiquid securities (i.e.,
securities that cannot be readily sold), and may from time to time enter into
forward foreign currency exchange contracts in an attempt to manage the risk of
adverse changes in currencies. The Fund may also purchase put options (which
gives the Fund the right to sell an underlying security at a particular price
during a fixed period) in an attempt to hedge against a decline in the price of
securities it holds in its portfolio. Foreign currency forward contracts and put
options on securities may not be available to the Fund on reasonable terms in
many situations and the Fund may frequently choose not to enter into such
contracts or purchase such options even when they are available.

The Fund may change its principal strategies if the Board of Directors believes
doing so is consistent with the Fund's objective. The Fund's objective may be
changed only with the approval of shareholders.

As with any  mutual  fund,  there is no  guarantee  the Fund  will  achieve  its
objective.
    


PRINCIPAL RISKS

   
The Fund's net asset value may fluctuate more than other equity funds or other
global equity funds that do not invest heavily in emerging markets. You may
experience a decline in the value of your investment and you could lose money.
Emerging countries may have relatively unstable governments, economies based on
less diversified industrial bases, and securities markets that trade a smaller
number of securities. Companies in emerging markets are often smaller, less
seasoned, and more recently organized than many US companies.

Investing in securities of foreign issuers involves risks not associated with US
investments, including currency fluctuation, local withholding and other taxes,
different financial reporting practices and regulatory standards, high costs of
trading, changes in political conditions, expropriation, investment and
repatriation restrictions, and settlement and custody risks. Investing in
emerging markets involves a greater degree of risk, and an investment in the
Fund should be considered speculative.
    

The Fund may be negatively affected by the broad investment environment in the
international or US securities markets, which may be influenced by interest
rates, inflation, politics, fiscal policy, and current events.

To the extent the Fund invests some of its assets in other higher-risk
securities, such as illiquid securities, it may be subject to higher price
volatility.
   

The Fund may actively and frequently trade securities in its portfolio to carry
out its principal strategies. A high portfolio turnover rate results in
correspondingly greater transaction costs which may increase the Fund's
expenses. There may also be adverse tax consequences for investors in the Fund
due to an increase in short-term capital gains.
    
An investment in the Fund is not a deposit in a bank and is not insured or
guaranteed by the Federal Deposit Insurance Corporation or any other government
agency.



                                       7
<PAGE>


   
SELIGMAN HENDERSON EMERGING MARKETS GROWTH FUND
    

PAST PERFORMANCE

   
The Fund offers three classes of shares. The information below provides some
indication of the risks of investing in the Fund by showing how the performance
of Class A shares has varied year to year, as well as how each Class's
performance compares to two widely-used measures of performance. Although the
Fund's fiscal year ends on October 31, the performance is provided on a calendar
year basis to assist you in comparing the returns of the Fund with the returns
of other mutual funds. How the Fund has performed in the past, however, is not
necessarily an indication of how the Fund will perform in the future. Total
returns will vary between each Class of shares due to the different fees and
expenses of each Class.
    

The Class A annual total returns presented in the bar chart do not reflect the
effect of any sales charges. If these charges were included, the returns would
be less. The average annual total returns presented in the table below the chart
do reflect the effect of the applicable sales charges. Both the bar chart and
table assume that all dividends and capital gain distributions were reinvested.

                  Class A Annual Total Returns - Calendar Years

 [THE FOLLOWING TABLE WAS REPRESENTED BY A BAR CHART IN THE PRINTED MATERIAL.]

                         1997 ...............     6.35%
                         1998 ...............   -27.45


   
          Best calendar quarter return: 16.92% - quarter ended 6/30/97
         Worst calendar quarter return: -25.67% - quarter ended 9/30/98
    

- --------------------------------------------------------------------------------
              Average Annual Total Returns - Periods Ended 12/31/98

   
                                                                    SINCE
                                                      ONE         INCEPTION
                                                     YEAR          5/28/96
                                                     ----         ---------
Class A                                             -30.93%        -11.45%
Class B                                             -31.65         -11.51
Class D                                             -28.64         -10.40
MSCI EMF Index                                      -25.33         -16.05(1)
Lipper Emerging Markets Funds Average               -26.85         -13.57(1)

The Morgan Stanley Capital International Emerging Markets Free Index (MSCI EMF
Index) and the Lipper Emerging Markets Funds Average are unmanaged benchmarks
that assume the reinvestment of dividends. The Lipper Emerging Markets Funds
Average excludes the effect of sales charges and the MSCI EMF Index excludes the
effect of fees and sales charges. The MSCI EMF Index measures the performance of
stocks in 26 emerging market countries in Europe, Latin America, and the Pacific
Basin which are available to foreign investors. The Lipper Emerging Markets
Funds Average measures the performance of mutual funds which invest at least 65%
of total assets in equity securities of companies in emerging markets.
    

(1) From 5/31/96.
- --------------------------------------------------------------------------------



                                       8
<PAGE>


       

FEES AND EXPENSES

   
The table below summarizes the fees and expenses that you may pay as a
shareholder of the Fund. Each Class of shares has its own sales charge schedule
and is subject to different ongoing 12b-1 fees. Shareholder fees are charged
directly to you. Annual fund operating expenses are deducted from Fund assets
and are therefore paid indirectly by you and other shareholders of the Fund.
    

<TABLE>
<CAPTION>
Shareholder Fees                                                                    Class A      Class B      Class D
- -----------------                                                                   ------       ------       ------
<S>                                                                                  <C>          <C>          <C>
Maximum Sales Charge (Load) on Purchases
  (as a % of offering price) ....................................................    4.75%(1)      none         none
Maximum Deferred Sales Charge (Load) (CDSC) on Redemptions
  (as a % of original purchase price or current net asset value,
  whichever is less) ............................................................     none(1)        5%           1%

Annual Fund Operating Expenses for Fiscal 1998
- ------------------------------------------------
(as a percentage of average net assets)

Management Fees .................................................................    1.25%        1.25%        1.25%
Distribution and/or Service (12b-1) Fees ........................................     .23%        1.00%        1.00%
Other Expenses ..................................................................     .74%         .74%         .74%
                                                                                     -----        -----        -----
Total Annual Fund Operating Expenses ............................................    2.22%        2.99%        2.99%
                                                                                     =====        =====        =====
</TABLE>

(1)  If you buy Class A shares for $1,000,000 or more, you do not pay an initial
     sales charge, but your shares will be subject to a 1% CDSC if sold within
     18 months.

Example
- -------

   
This example is intended to help you compare the expenses of investing in the
Fund with the expenses of investing in other mutual funds. It assumes (1) you
invest $10,000 in the Fund for each period and then sell all of your shares at
the end of that period, (2) your investment has a 5% return each year, and (3)
the Fund's operating expenses remain the same. Although your actual expenses may
be higher or lower, based on these assumptions your expenses would be:
    

               1 Year      3 Years    5 Years    10 Years
               ------      -------    -------    --------
Class A         $689       $1,136      $1,608     $2,908
Class B          802        1,224       1,772      3,128+
Class D          402          924       1,572      3,308

If you did not sell your shares at the end of each period, your expenses would
be:

   
               1 Year      3 Years    5 Years    10 Years
               ------      -------    -------    --------
Class A         $689       $1,136      $1,608     $2,908
Class B          302          924       1,572      3,128+
Class D          302          924       1,572      3,308
    

+    Class B shares will automatically convert to Class A shares after eight
     years.

       


                                       9
<PAGE>


   
SELIGMAN HENDERSON GLOBAL GROWTH OPPORTUNITIES FUND
    

INVESTMENT OBJECTIVE/PRINCIPAL STRATEGIES

   
The Global Growth Opportunities Fund's objective is long-term capital
appreciation.

The Fund uses the following principal strategies to seek its objective:

The Fund invests primarily in equity securities of non-US and US growth
companies that have the potential to benefit from global economic or social
trends. The Fund may invest in companies of any size, domiciled in any country.
Typically, the Fund will invest in several countries in different geographic
regions.
    

The Fund uses an investment style that combines macro analysis of global trends
with in-depth research of individual companies. This means that the investment
managers analyze the rapidly changing world to identify investment themes that
they believe will have the greatest impact on global markets, and use in-depth
research to identify attractive companies around the world. The Fund focuses on
the following macro trends:

   
     o    Economic liberalization and the flow of capital through global trade
          and investment;

     o    Globalization of the world's economy.

     o    The expansion of technology as an increasingly important influence on
          society;

     o    Increased awareness of the importance of protecting the environment;
          and

     o    The increase in life expectancy leading to changes in consumer
          demographics and a greater need for healthcare, personal security, and
          leisure.

In selecting individual securities, the investment managers look to identify
companies that they believe display one or more of the following:

     o    Attractive valuations relative to earnings forecasts or other
          valuation criteria (e.g., return on equity)
    

     o    Quality management and equity ownership by executives

   
     o    Unique competitive advantages (e.g., market share, proprietary
          products)

    
     o    Potential for improvement in overall operations
   

The Fund generally sells a stock if the investment managers believe its target
price has been reached, its earnings are disappointing, its revenue growth has
slowed, or its underlying fundamentals have deteriorated. The Fund may also sell
a stock if the investment managers believe that negative country or regional
factors or a shifting in global trends may negatively affect a company's
outlook, or to meet cash requirements.

The Fund may invest in all types of securities, many of which will be
denominated in currencies other than the US dollar. The Fund normally
concentrates its investments in common stocks; however, it may invest in other
types of equity securities, including securities convertible into or
exchangeable for common stock, depositary receipts, and rights and warrants to
purchase common stock. The Fund also may invest up to 25% of its assets in
preferred stock and investment grade or comparable quality debt securities.

The Fund may, from time to time, take temporary defensive positions that are
inconsistent with its principal strategies in seeking to minimize extreme
volatility caused by adverse market, economic, or other conditions. This could
prevent the Fund from achieving its objective.
    


                                       10
<PAGE>

       

   

The Fund may invest up to 15% of its net assets in illiquid securities (i.e.,
securities that cannot be readily sold), and may from time to time enter into
forward foreign currency exchange contracts in an attempt to manage the risk of
adverse changes in currencies. The Fund may also purchase put options (which
gives the Fund the right to sell an underlying security at a particular price
during a fixed period) in an attempt to hedge against a decline in the price of
securities it holds in its portfolio. Foreign currency forward contracts and put
options on securities may not be available to the Fund on reasonable terms in
many situations and the Fund may frequently choose not to enter into such
contracts or purchase such options even when they are available.

The Fund may change its principal strategies if the Board of Directors believes
doing so is consistent with the Fund's objective. The Fund's objective may be
changed only with the approval of shareholders.

As with any mutual fund, the Fund may not achieve its objective.
    

PRINCIPAL RISKS

Stock prices fluctuate. Therefore, as with any fund that invests in stocks, the
Fund's net asset value will fluctuate. You may experience a decline in the value
of your investment and you could lose money.

Investing in securities of foreign issuers involves risks not associated
with US investments, including currency fluctuation,  local withholding and
other taxes, different financial reporting practices and regulatory
standards, high costs of trading, changes in political conditions,
expropriation, investment and repatriation restrictions, and settlement and
custody risks.

The Fund seeks to limit the risk of investing in foreign securities by
diversifying its investments among different countries, as well as among
different themes. Diversification reduces the effect events in any one country
will have on the Fund's entire investment portfolio. However, a decline in the
value of the Fund's investments in one country may offset potential gains from
investments in another country.

If global trends do not develop as the manager expects, the Fund's performance
could be negatively affected.

The Fund may be negatively affected by the broad investment environment in the
international or US securities markets, which may be influenced by interest
rates, inflation, politics, fiscal policy, and current events.

To the extent the Fund invests some of its assets in higher-risk securities,
such as illiquid securities, it may be subject to higher price volatility.

   

The Fund may actively and frequently trade securities in its portfolio to carry
out its principal strategies. A high portfolio turnover rate results in
correspondingly greater transaction costs which may increase the Fund's
expenses. There may also be adverse tax consequences for investors in the Fund
due to an increase in short-term capital gains.
    

An investment in the Fund is not a deposit in a bank and is not insured or
guaranteed by the Federal Deposit Insurance Corporation or any other government
agency.


                                       11
<PAGE>


   
SELIGMAN HENDERSON GLOBAL GROWTH OPPORTUNITIES FUND
    

PAST PERFORMANCE

   
The Fund offers three classes of shares. The information below provides some
indication of the risks of investing in the Fund by showing how the performance
of Class A shares has varied year to year, as well as how each Class's
performance compares to two widely-used measures of performance. Although the
Fund's fiscal year ends on October 31, the performance is provided on a calendar
year basis to assist you in comparing the returns of the Fund with the returns
of other mutual funds. How the Fund has performed in the past, however, is not
necessarily an indication of how the Fund will perform in the future. Total
returns will vary between each Class of shares due to the different fees and
expenses of each Class.
    

The Class A annual total returns presented in the bar chart do not reflect the
effect of any sales charges. If these charges were included, the returns would
be less. The average annual total returns presented in the table below the chart
do reflect the effect of the applicable sales charges. Both the bar chart and
table assume that all dividends and capital gain distributions were reinvested.

                  Class A Annual Total Returns - Calendar Years

 [THE FOLLOWING TABLE WAS REPRESENTED BY A BAR CHART IN THE PRINTED MATERIAL.]


                         1996 ....................   13.01%
                         1997 ....................   11.52%
                         1998 ....................   22.75%

   
          Best calendar quarter return: 19.65% - quarter ended 12/31/98
         Worst calendar quarter return: -14.62% - quarter ended 9/30/98
    

- --------------------------------------------------------------------------------
              Average Annual Total Returns - Periods Ended 12/31/98

   
                                                CLASS B
                                    ONE      SINCE INCEPTION    SINCE INCEPTION
                                   YEAR          4/22/96            11/1/95
                                   ----      ---------------    ---------------
Class A                            16.98%          n/a              14.19%
Class B                            16.91         11.50%               n/a
Class D                            20.91           n/a              15.09
MSCI World Index                   24.80         17.87(1)           19.58(2)
Lipper Global Funds Average        14.06         12.98(1)           15.24(2)

The Morgan Stanley Capital International World Index (MSCI World Index) and the
Lipper Global Funds Average are unmanaged benchmarks that assume reinvestment of
dividends. The Lipper Global Funds Average excludes the effect of sales charges
and the MSCI World Index excludes the effect of fees and sales charges. The MSCI
World Index measures the performance of stocks in 22 developed markets in North
America, Europe, and the Asia/Pacific region. The Lipper Global Funds average
measures the performance of mutual funds which invest at least 25% of total
assets in equity securities traded outside the US, and which may own US
securities.
    

(1) From 4/30/96.

(2) From 10/31/95.
- --------------------------------------------------------------------------------




                                       12
<PAGE>


       

FEES AND EXPENSES

   
The table below summarizes the fees and expenses that you may pay as a
shareholder of the Fund. Each Class of shares has its own sales charge schedule
and is subject to different ongoing 12b-1 fees. Shareholder fees are charged
directly to you. Annual fund operating expenses are deducted from Fund assets
and are therefore paid indirectly by you and other shareholders of the Fund.
    

<TABLE>
<CAPTION>
Shareholder Fees                                                                    Class A      Class B      Class D
- -----------------                                                                   ------       ------       ------
<S>                                                                                  <C>          <C>          <C>
Maximum Sales Charge (Load) on Purchases
  (as a % of offering price) ...................................................     4.75%(1)      none         none
Maximum Deferred Sales Charge (Load) (CDSC) on Redemptions
  (as a % of original purchase price or current net asset value,
  whichever is less) ...........................................................      none(1)        5%           1%

Annual Fund Operating Expenses for Fiscal 1998
- ------------------------------------------------
(as a percentage of average net assets)
Management Fees ................................................................     1.00%        1.00%        1.00%
Distribution and/or Service (12b-1) Fees .......................................      .24%        1.00%        1.00%
Other Expenses .................................................................      .44%         .44%         .44%
                                                                                     -----        -----        -----
Total Annual Fund Operating Expenses ...........................................     1.68%        2.44%        2.44%
                                                                                     =====        =====        =====
</TABLE>

(1)  If you buy Class A shares for $1,000,000 or more, you do not pay an initial
     sales charge, but your shares will be subject to a 1% CDSC if sold within
     18 months.

Example
- -------

   
This example is intended to help you compare the expenses of investing in the
Fund with the expenses of investing in other mutual funds. It assumes (1) you
invest $10,000 in the Fund for each period and then sell all of your shares at
the end of that period, (2) your investment has a 5% return each year, and (3)
the Fund's operating expenses remain the same. Although your actual expenses may
be higher or lower, based on these assumptions your expenses would be:
    

               1 Year      3 Years    5 Years    10 Years
               ------      -------    -------    --------
Class A         $638        $ 979      $1,344     $2,368
Class B          747        1,061       1,501      2,589+
Class D          347          761       1,301      2,776

If you did not sell your shares at the end of each period, your expenses would
be:

               1 Year      3 Years    5 Years    10 Years
               ------      -------    -------    --------
Class A         $638         $979      $1,344     $2,368
Class B          247          761       1,301      2,589+
Class D          247          761       1,301      2,776

+    Class B shares will automatically convert to Class A shares after eight
     years.

       

                                       13
<PAGE>


SELIGMAN HENDERSON GLOBAL SMALLER COMPANIES FUND

INVESTMENT OBJECTIVE/PRINCIPAL STRATEGIES

   
The Global Smaller Companies Fund's objective is long-term capital appreciation.
    

- --------------------------------------------------------------------------------
Smaller companies:

Companies with market capitalization (at the time of purchase by the Fund)
equivalent to US $1 billion or less.
- --------------------------------------------------------------------------------

   
The Fund uses the following principal strategies to seek its objective:

The Fund generally invests at least 65% of its assets in equity securities of
smaller US and non-US companies. The Fund may invest in companies domiciled in
any country, although it typically invests in developed countries. The Fund will
generally invest in several countries in different geographic regions.

The Fund uses an investment style that combines top-down macro-economic analysis
with bottom-up fundamental research into individual company attractiveness. This
means that the investment managers identify countries that they believe offer
good investment opportunities, and use extensive in-depth research to identify
attractive smaller companies around the world. The investment managers look at
one or more of the following factors when making country allocation decisions:
    

     o    Relative economic growth potential of the various economies and
          securities markets

     o    Political, financial, and social conditions influencing investment
          opportunities

     o    Investor sentiment 

     o    Prevailing interest rates and expected levels of inflation

     o    Market prices relative to historic averages

   
In selecting individual securities, the investment managers look for companies
that they believe display one or more of the following:

     o    Attractive valuations relative to earnings forecasts or other
          valuation criteria (e.g., return on equity)
    

     o    Quality management and equity ownership by executives

   
     o    Unique competitive advantages (e.g., market share, proprietary
          products)

    
     o    Market liquidity

     o    Potential for improvement in overall operations

   
The Fund generally sells a stock if the investment managers believe its target
price has been reached, its earnings are disappointing, its revenue growth has
slowed, or its underlying fundamentals have deteriorated. The Fund may also sell
a stock if the investment managers believe that negative country or regional
factors may affect a company's outlook, or to meet cash requirements. The Fund
anticipates that it will continue to hold securities of companies that grow or
expand so long as the investment managers believe the securities continue to
offer prospects of long-term growth.

The Fund may invest in all types of securities, many of which will be
denominated in currencies other than the US dollar. The Fund normally
concentrates its investments in common stocks; however, it may invest in other
types of equity securities, including securities convertible into or
exchangeable for common stock, depositary receipts, and rights and warrants to
purchase common stock. The Fund also may invest up to 25% of its assets in
preferred stock and investment grade or comparable quality debt securities.

The Fund may, from time to time, take temporary defensive positions that are
inconsistent with its principal strategies in seeking to minimize extreme
volatility caused by adverse market, economic, or other conditions. This could
prevent the Fund from achieving its objective.
    


                                       14
<PAGE>


       

   
The Fund may invest up to 15% of its net assets in illiquid securities (i.e.,
securities that cannot be readily sold), and may from time to time enter into
forward foreign currency exchange contracts in an attempt to manage the risk of
adverse changes in currencies. The Fund may also purchase put options (which
gives the Fund the right to sell an underlying security at a particular price
during a fixed period) in an attempt to hedge against a decline in the price of
securities it holds in its portfolio. Foreign currency forward contracts and put
options on securities may not be available to the Fund on reasonable terms in
many situations and the Fund may frequently choose not to enter into such
contracts or purchase such options even when they are available.

The Fund may change its principal strategies if the Board of Directors believes
doing so is consistent with the Fund's objective. The Board of Directors may
change the definition of "smaller company" if they conclude that such a change
is appropriate. The Fund's objective may be changed only with the approval of
shareholders.

As with any mutual fund, there is no guarantee the Fund will achieve its
objective.
    

PRINCIPAL RISKS

Stock prices fluctuate. Therefore, as with any fund that invests in stocks, the
Fund's net asset value will fluctuate. You may experience a decline in the value
of your investment and you could lose money.

Investing in securities of foreign issuers involves risks not associated
with US investments, including currency fluctuation,  local withholding and
other taxes, different financial reporting practices and regulatory
standards, high costs of trading, changes in political conditions,
expropriation, investment and repatriation restrictions, and settlement and
custody risks.

Investments in smaller companies typically involve greater risks than
investments in larger companies. Small company stocks, as a whole, may
experience larger price fluctuations than large-company stocks or other types of
investments. Some small companies may have shorter operating histories, less
experienced management and limited product lines, markets, and financial or
managerial resources.

The Fund may be negatively affected by the broad investment environment in the
international or US securities markets, which may be influenced by interest
rates, inflation, politics, fiscal policy, and current events.

To the extent the Fund invests some of its assets in higher-risk securities,
such as illiquid securities, it may be subject to higher price volatility.

   

The Fund may actively and frequently trade securities in its portfolio to carry
out its principal strategies. A high portfolio turnover rate results in
correspondingly greater transaction costs which may increase the Fund's
expenses. There may also be adverse tax consequences for investors in the Fund
due to an increase in short-term capital gains.
    

An investment in the Fund is not a deposit in a bank and is not insured or
guaranteed by the Federal Deposit Insurance Corporation or any other government
agency.


                                       15
<PAGE>

   
SELIGMAN HENDERSON GLOBAL SMALLER COMPANIES FUND

PAST PERFORMANCE


The Fund offers three classes of shares. The information below provides some
indication of the risks of investing in the Fund by showing how the performance
of Class A shares has varied year to year, as well as how each Class's
performance compares to two widely-used measures of performance. Although the
Fund's fiscal year ends on October 31, the performance is provided on a calendar
year basis to assist you in comparing the returns of the Fund with the returns
of other mutual funds. How the Fund has performed in the past, however, is not
necessarily an indication of how the Fund will perform in the future. Total
returns will vary between each Class of shares due to the different fees and
expenses of each Class.
    

The Class A annual total returns presented in the bar chart do not reflect the
effect of any sales charges. If these charges were included, the returns would
be less. The average annual total returns presented in the table below the chart
do reflect the effect of the applicable sales charges. Both the bar chart and
table assume that all dividends and capital gain distributions were reinvested.

                  Class A Annual Total Returns - Calendar Years

 [THE FOLLOWING TABLE WAS REPRESENTED BY A BAR CHART IN THE PRINTED MATERIAL.]

                      1993 ....................   40.06%
                      1994 ....................   10.14%
                      1995 ....................   25.83%
                      1996 ....................   16.84%
                      1997 ....................    3.55%
                      1998 ....................    5.71%

   
          Best calendar quarter return: 16.36% - quarter ended 3/31/98
         Worst calendar quarter return: -17.21% - quarter ended 9/30/98
    

<TABLE>
<CAPTION>
- ----------------------------------------------------------------------------------------------------------------------
                          Average Annual Total Returns - Periods Ended 12/31/98
                                                                    CLASS A            CLASS B            CLASS D
                                              ONE      FIVE      SINCE INCEPTION    SINCE INCEPTION    SINCE INCEPTION
                                              YEAR     YEARS         9/9/92             4/22/96            5/3/93
                                              ----     -----     ---------------    ---------------    ---------------
<S>                                            <C>       <C>          <C>               <C>               <C>
   
Class A                                        0.65%    11.05%        15.65%             n/a                n/a
Class B                                       -0.13       n/a           n/a             3.03                n/a
Class D                                        3.94     11.25           n/a              n/a              14.06%
Salomon Smith Barney EMIndex World             5.93      9.25         11.36(1)          6.09(2)            9.77(3)
Lipper Global Small Cap Funds Average          0.75      8.02         12.34(1)          2.32(2)           10.94(3)

The Salomon Smith Barney Extended Market Index World (Salomon Smith Barney
EM Index World) and the Lipper Global Small Cap Funds Average are unmanaged
benchmarks that assume reinvestment of dividends. The Lipper Global Small Cap
Funds Average excludes the effect of sales charges and the Salomon Smith Barney
World EM Index excludes the effect of fees and sales charges. The Salomon Smith
Barney EM Index World measures the performance of small-cap stocks around the
world. The Lipper Global Small Cap Funds Average measure the performance of
mutual funds which invest at least 25% of their total assets in equity
securities of companies whose primary trading markets are outside the US, and
which invest at least 65% of total assets in companies with market
capitalizations of less than US $1 billion at the time of purchase.

(1)  From 8/31/92.

(2)  From 4/30/96.

(3)  From 4/30/93.
- ----------------------------------------------------------------------------------------------------------------------
</TABLE>
    




                                       16
<PAGE>

       

FEES AND EXPENSES

   
The table below summarizes the fees and expenses that you may pay as a
shareholder of the Fund. Each Class of shares has its own sales charge schedule
and is subject to different ongoing 12b-1 fees. Shareholder fees are charged
directly to you. Annual fund operating expenses are deducted from Fund assets
and are therefore paid indirectly by you and other shareholders of the Fund.
    

<TABLE>
<CAPTION>
Shareholder Fees                                                                    Class A      Class B      Class D
- -----------------                                                                   ------       ------       ------
<S>                                                                                  <C>          <C>          <C>
   
Maximum Sales Charge (Load) on Purchases
  (as a % of offering price)                                                         4.75%(1)      none         none
Maximum Deferred Sales Charge (Load) (CDSC) on Redemptions
  (as a % of original purchase price or current net asset value,
  whichever is less)                                                                  none(1)        5%           1%

Annual Fund Operating Expenses for Fiscal 1998
- ------------------------------------------------
(as a percentage of average net assets)
Management Fees                                                                      1.00%        1.00%        1.00%
Distribution and/or Service (12b-1) Fees                                              .24%        1.00%        1.00%
Other Expenses                                                                        .41%         .41%         .41%
                                                                                     -----        -----        -----
Total Annual Fund Operating Expenses                                                 1.65%        2.41%        2.41%
                                                                                     =====        =====        =====
</TABLE>
    

(1)  If you buy Class A shares for $1,000,000 or more, you do not pay an initial
     sales charge, but your shares will be subject to a 1% CDSC if sold within
     18 months.

Example
- -------

   
This example is intended to help you compare the expenses of investing in the
Fund with the expenses of investing in other mutual funds. It assumes (1) you
invest $10,000 in the Fund for each period and then sell all of your shares at
the end of that period, (2) your investment has a 5% return each year, and (3)
the Fund's operating expenses remain the same. Although your actual expenses may
be higher or lower, based on these assumptions your expenses would be:
    

               1 Year      3 Years    5 Years    10 Years
               ------      -------    -------    --------
Class A         $635       $  971      $1,329     $2,337
Class B          744        1,051       1,485      2,558+
Class D          344          751       1,285      2,746

If you did not sell your shares at the end of each period, your expenses would
be:

               1 Year      3 Years    5 Years    10 Years
               ------      -------    -------    --------
Class A         $635        $971      $1,329     $2,337
Class B          244         751       1,285      2,558+
Class D          244         751       1,285      2,746

+    Class B shares will automatically convert to Class A shares after eight
     years.


       


                                       17
<PAGE>


   
SELIGMAN HENDERSON GLOBAL TECHNOLOGY FUND
    

INVESTMENT OBJECTIVE/PRINCIPAL STRATEGIES

   
The Global Technology Fund's objective is long-term capital appreciation.
    

- --------------------------------------------------------------------------------
Technology:

The use of science to create new products and services. The industry comprises
information technology and communications, as well as medical-, environmental-
and bio-technology.
- --------------------------------------------------------------------------------

   
The Fund uses the following principal strategies to seek its objective:

The Fund generally invests at least 65% of its assets in equity securities of US
and non-US companies with business operations in technology and
technology-related industries. Technology-related companies are those companies
that use technology extensively to improve their business processes and
applications. The Fund may invest in companies domiciled in any country which
the investment managers believe to be appropriate to the Fund's objective. The
Fund generally invests in several countries in different geographic regions.
    

The Fund may invest in companies of any size. Securities of large companies that
are well established in the world technology market can be expected to grow with
the market and will frequently be held by the Fund. However, rapidly changing
technologies and expansion of technology and technology-related industries often
provide a favorable environment for companies of small-to-medium size, and the
Fund may invest in these companies as well.

   
The investment managers seek to identify those technology companies that they
believe have the greatest prospects for future growth, regardless of their
country of origin. The Fund uses an investment style that combines research into
individual company attractiveness with macro analysis. This means that the
investment managers use extensive in-depth research to identify attractive
technology companies around the world, while seeking to identify particularly
strong technology sectors and/or factors within regions or specific countries
that may affect investment opportunities. In selecting individual securities,
the investment managers look for companies that they believe display one or more
of the following:

     o    Above-average growth prospects

     o    High profit margins

     o    Attractive valuations relative to earnings forecasts or other
          valuation criteria (e.g., return on equity)
    

     o    Quality management and equity ownership by executives

   
     o    Unique competitive advantages (e.g., market share, proprietary
          products)

    
     o    Potential for improvement in overall operations
   

The Fund generally sells a stock if the investment managers believe its target
price has been reached, its earnings are disappointing, its revenue growth has
slowed, or its underlying fundamentals have deteriorated. The Fund may also sell
a stock if the investment managers believe that negative country or regional
factors may affect a company's outlook, or to meet cash requirements.

The Fund may invest in all types of securities, many of which will be
denominated in currencies other than the US dollar. The Fund normally
concentrates its investments in common stocks; however, it may invest in other
types of equity securities, including securities convertible into or
exchangeable for common stock, depositary receipts, and rights and warrants to
purchase common stock. The Fund also may invest up to 25% of its assets in
preferred stock and investment grade or comparable quality debt securities. The
Fund may also invest in depositary receipts, which are publicly traded
instruments generally issued by US or foreign banks or trust companies that
represent securities of foreign issuers.

The Fund may, from time to time, take temporary defensive positions that are
inconsistent with its principal strategies in seeking to minimize extreme
volatility caused by adverse market, economic, or other conditions. This could
prevent the Fund from achieving its objective.
    



                                       18
<PAGE>

       

   

The Fund may invest up to 15% of its net assets in illiquid securities (i.e.,
securities that cannot be readily sold), and may from time to time enter into
forward foreign currency exchange contracts in an attempt to manage the risk of
adverse changes in currencies. The Fund may also purchase put options (which
gives the Fund the right to sell an underlying security at a particular price
during a fixed period) in an attempt to hedge against a decline in the price of
securities it holds in its portfolio. Foreign currency forward contracts and put
options on securities may not be available to the Fund on reasonable terms in
many situations and the Fund may frequently choose not to enter into such
contracts or purchase such options even when they are available.

The Fund may change its principal strategies if the Board of Directors believes
doing so is consistent with the Fund's objective. The Fund's objective may be
changed only with the approval of shareholders.

As with any mutual fund, there is no guarantee the Fund will achieve its
objective.
    

PRINCIPAL RISKS

Stock prices fluctuate. Therefore, as with any fund that invests in stocks, the
Fund's net asset value will fluctuate. You may experience a decline in the value
of your investment and you could lose money.

Investing in securities of foreign issuers involves risks not associated
with US investments, including currency fluctuation,  local withholding and
other taxes, different financial reporting practices and regulatory
standards, high costs of trading, changes in political conditions,
expropriation, investment and repatriation restrictions, and settlement and
custody risks.

The Fund may be susceptible to factors affecting technology and
technology-related industries and the Fund's net asset value may fluctuate more
than a fund that invests in a wider range of industries. Technology companies
are often smaller and less experienced companies and may be subject to greater
risks than larger companies, such as limited product lines, markets, and
financial or managerial resources. These risks may be heightened for technology
companies in foreign markets.

The Fund seeks to limit risk by diversifying its investments among different
sectors within the technology industry, as well as among different countries.
Diversification reduces the effect the performance of any one sector or events
in any one country will have on the Fund's entire investment portfolio. However,
a decline in the value of one of the Fund's investments may offset potential
gains from other investments.

The Fund may be negatively affected by the broad investment environment in the
international or US securities markets, which may be influenced by interest
rates, inflation, politics, fiscal policy, and current events.

To the extent the Fund invests some of its assets in higher-risk securities,
such as illiquid securities or options, it may be subject to higher price
volatility.

   

The Fund may actively and frequently trade securities in its portfolio to carry
out its principal strategies. A high portfolio turnover rate results in
correspondingly greater transaction costs which may increase the Fund's
expenses. There may also be adverse tax consequences for investors in the Fund
due to an increase in short-term capital gains.
    

An investment in the Fund is not a deposit in a bank and is not insured or
guaranteed by the Federal Deposit Insurance Corporation or any other government
agency.


                                       19
<PAGE>

   
SELIGMAN HENDERSON GLOBAL TECHNOLOGY FUND

PAST PERFORMANCE

The Fund offers three classes of shares. The information below provides some
indication of the risks of investing in the Fund by showing how the performance
of Class A shares has varied year to year, as well as how each Class's
performance compares to four widely-used measures of performance. Although the
Fund's fiscal year ends on October 31, the performance is provided on a calendar
year basis to assist you in comparing the returns of the Fund with the returns
of other mutual funds. How the Fund has performed in the past, however, is not
necessarily an indication of how the Fund will perform in the future. Total
returns will vary between each Class of shares due to the different fees and
expenses of each Class.
    

The Class A annual total returns presented in the bar chart do not reflect the
effect of any sales charges. If these charges were included, the returns would
be less. The average annual total returns presented in the table below the chart
do reflect the effect of the applicable sales charges. Both the bar chart and
table assume that all dividends and capital gain distributions were reinvested.

                  Class A Annual Total Returns - Calendar Years

 [THE FOLLOWING TABLE WAS REPRESENTED BY A BAR CHART IN THE PRINTED MATERIAL.]

                      1995 ........................   45.06%
                      1996 ........................   14.30%
                      1997 ........................   11.75%
                      1998 ........................   30.73%

   
          Best calendar quarter return: 35.50% - quarter ended 12/31/98
         Worst calendar quarter return: -16.69% - quarter ended 9/30/98
    

<TABLE>
<CAPTION>
- ----------------------------------------------------------------------------------------------------
                  Average Annual Total Returns - Periods Ended 12/31/98

                                                                                          CLASS B
                                                        ONE      SINCE INCEPTION     SINCE INCEPTION
                                                        YEAR         5/23/94             4/22/96
                                                        ----     ---------------     ---------------
<S>                                                     <C>           <C>                <C>
   
Class A                                                 24.50%        24.08%               n/a
Class B                                                 24.84           n/a              17.71%
Class D                                                 28.89         24.39                n/a
MSCI World Index                                        24.80         16.75(1)           17.87(2)
H&Q Index                                               55.40         35.13(1)           28.32(2)
Lipper Global Funds Average                             14.06         12.73(1)           12.98(2)
Lipper Science &Technology Funds Average                52.55         27.02(1)           25.95(2)

The Morgan Stanley Capital International World Index (MSCI World Index) the
Hambrecht and Quist Technology Stock Index (H&Q Index), and the Lipper Funds
Averages are unmanaged benchmarks that assume reinvestment of dividends. The
Lipper Funds Averages exclude the effect of sales charges and the MSCI World
Index and the H&Q Index exclude the effect of fees and sales charges. The MSCI
World Index measures the performance of stocks in 22 developed markets in North
America, Europe, and the Asia/Pacific region. The H & Q Index measures the
performance of US technology stocks. The Lipper Global Funds average measures
the performance of mutual funds which invest at least 25% of total assets in
equity securities traded outside the US, and which may own US securities. The
Lipper Science and Technology Funds Average measures the performance of mutual
funds which invest at least 65% of total assets in science and technology
stocks.

(1)  From 5/31/94.

(2)  From 4/30/96.
- ----------------------------------------------------------------------------------------------------
    
</TABLE>


                                       20
<PAGE>

       

FEES AND EXPENSES

   
The table below summarizes the fees and expenses that you may pay as a
shareholder of the Fund. Each Class of shares has its own sales charge schedule
and is subject to different ongoing 12b-1 fees. Shareholder fees are charged
directly to you. Annual fund operating expenses are deducted from Fund assets
and are therefore paid indirectly by you and other shareholders of the Fund.
    

<TABLE>
<CAPTION>
   
Shareholder Fees                                                                    Class A      Class B      Class D
- -----------------                                                                   -------      -------      -------
<S>                                                                                  <C>          <C>          <C>
Maximum Sales Charge (Load) on Purchases
  (as a % of offering price) ....................................................    4.75%(1)      none         none
Maximum Deferred Sales Charge (Load) (CDSC) on Redemptions
  (as a % of original purchase price or current net asset value,
  whichever is less) ............................................................     none(1)        5%           1%
    

Annual Fund Operating Expenses for Fiscal 1998
- ------------------------------------------------
(as a percentage of average net assets)

Management Fees .................................................................    1.00%        1.00%        1.00%
Distribution and/or Service (12b-1) Fees ........................................     .24%        1.00%        1.00%
Other Expenses ..................................................................     .43%         .43%         .43%
                                                                                     -----        -----        -----
Total Annual Fund Operating Expenses ............................................    1.67%        2.43%        2.43%
                                                                                     =====        =====        =====
</TABLE>

   
(1)  If you buy Class A shares for $1,000,000 or more, you do not pay an initial
     sales charge, but your shares will be subject to a 1% CDSC if sold within
     18 months.
    


Example
- -------

   
This example is intended to help you compare the expenses of investing in the
Fund with the expenses of investing in other mutual funds. It assumes (1) you
invest $10,000 in the Fund for each period and then sell all of your shares at
the end of that period, (2) your investment has a 5% return each year, and (3)
the Fund's operating expenses remain the same. Although your actual expenses may
be higher or lower, based on these assumptions your expenses would be:
    

               1 Year      3 Years    5 Years    10 Years
               ------      -------    -------    --------
Class A         $637       $  976      $1,339     $2,357
Class B          746        1,058       1,496      2,578+
Class D          346          758       1,296      2,766

If you did not sell your shares at the end of each period, your expenses would
be:

               1 Year      3 Years    5 Years    10 Years
               ------      -------    -------    --------
Class A         $637         $976      $1,339     $2,357
Class B          246          758       1,296      2,578+
Class D          246          758       1,296      2,766

   
+    Class B shares will automatically convert to Class A shares after eight
     years.
    

       


                                       21
<PAGE>


MANAGEMENT OF THE FUNDS
    
The Board of Directors provides broad supervision over the affairs of each Fund.

J. & W. Seligman & Co. Incorporated (Seligman), 100 Park Avenue, New York, New
York 10017 is the manager of each Fund. Seligman is responsible for each Fund's
investments and administers each Fund's business and other affairs.

Established in 1864, Seligman currently serves as manager to 18 US registered
investment companies, which offer more than 50 investment portfolios with
approximately $21.9 billion in assets as of January 31, 1999. Seligman also
provides investment management or advice to institutional or other accounts
having an aggregate value at January 31, 1999, of approximately $9.8 billion.
    

Each Fund pays Seligman a fee for its management services. The fee is equal to
an annual rate of 1.25% of the average daily net assets of the Emerging Markets
Growth Fund and 1.00% of the average daily net assets of each other Fund.

The Funds' Subadviser

Each Fund's subadviser is Henderson Investment Management Limited (HIML) whose
address is 3 Finsbury Avenue, London EC2M 2PA. HIML, established in 1984, is a
wholly owned subsidiary of Henderson plc, a United Kingdom corporation.
Henderson plc is a subsidiary of AMP Limited, an Australian life insurance and
financial services company. HIML provides investment advice, research and
assistance with respect to the Funds' non-US investments.

   
Seligman pays HIML a fee for its services in respect of each Fund. This fee does
not increase the fee payable by any Fund.

Prior to July 1, 1998, Seligman Henderson Co. served as subadviser to the Funds.
Seligman Henderson Co. was founded in 1991 as a general partnership between
Seligman and Henderson International, Inc., a wholly owned subsidiary of
Henderson plc. Each partner owns an equal 50% interest in Seligman Henderson Co.
Seligman paid Seligman Henderson Co. for its services in respect of each Fund,
which did not increase the fee payable by any Fund.
    

- --------------------------------------------------------------------------------
Affiliates of Seligman:
   
Seligman Advisors, Inc. 
Each Fund's general distributor; responsible for accepting orders for purchases
and sales of Fund shares.


Seligman Services, Inc.:
A limited purpose broker/dealer; acts as the broker/dealer of record for
shareholder accounts that do not have a designated broker or financial advisor.
    

Seligman Data Corp. (SDC):
Each Fund's shareholder service agent; provides shareholder account services to
the Fund at cost.
- --------------------------------------------------------------------------------

   
Portfolio Management

The International Fund is managed by HIML's International Team, headed by Mr.
Iain C. Clark, Chief Investment Officer of HIML. Mr. Clark has been Vice
President of Seligman Henderson Global Fund Series, Inc. and Portfolio Manager
of the International Fund since April 1992 and Co-Portfolio Manager of the
Global Smaller Companies Fund since September 1992. Mr. Clark is also Vice
President of Seligman Portfolios, Inc. and Portfolio Manager of its Seligman
Henderson International Portfolio and Co-Portfolio Manager of its Seligman
Henderson Global Smaller Companies Portfolio. He is a Director of Henderson
International Limited and Vice President, Secretary and Treasurer of Henderson
International, Inc. Mr. Clark has been a Director and Senior Portfolio Manager
of Henderson plc since 1985.

The Emerging Markets Growth Fund is managed by HIML's International Team, which
in respect of the Emerging Markets Growth Fund, is headed by Mr. Peter Bassett,
a portfolio manager of HIML. Mr. Bassett has been Vice President of Seligman
Henderson Global Fund Series, Inc. and Portfolio Manager of the Fund since May
1996. Mr. Bassett has been a portfolio manager with Henderson plc since December
1992.
    



                                       22
<PAGE>


   
The Global Growth Opportunities Fund is co-managed by Seligman's Growth Team and
HIML's International Team. The Growth Team is headed by Marion S. Schultheis,
Vice President of Seligman Henderson Global Fund Series, Inc. and Co-Portfolio
Manager of the Fund since May 13, 1998. Ms. Schultheis, who joined Seligman as a
Managing Director in May 1998, is also Vice President and Portfolio Manager of
Seligman Capital Fund, Inc. and Seligman Growth Fund, Inc. She is a Vice
President of Seligman Portfolios, Inc. and Portfolio Manager of its Seligman
Capital Portfolio and Co-Portfolio Manager of its Seligman Henderson Global
Growth Opportunities Portfolio. From October 1997 until May 1998, Ms. Schultheis
was a Managing Director at Chancellor LGT; and from August 1987 until October
1997, she was Senior Portfolio Manager at IDS Advisory Group Inc.

HIML's International Team in respect of the Global Growth Opportunities Fund is
headed by Nitin Mehta, Vice President of Seligman Henderson Global Fund Series,
Inc. and Co-Portfolio Manager of the Fund since May 1996. Mr. Mehta has been a
portfolio manager with Henderson plc since September 1994. Mr. Mehta is also
Vice President of Seligman Portfolios, Inc. and Co-Portfolio Manager of its
Seligman Henderson Global Growth Opportunities Portfolio. From May 1993 to
September 1994, Mr. Mehta was Head of Currency Management and Derivatives at
Quorum Capital Management.

The Global Smaller Companies Fund is co-managed by Seligman's Small Company Team
and HIML's International Team. The Small Company Team is headed by Arsen
Mrakovcic. Mr. Mrakovcic, a Managing Director of Seligman, has been Vice
President of Seligman Henderson Global Fund Series, Inc. and Portfolio Manager
of the Fund since October 1, 1995. Mr. Mrakovcic joined Seligman in June 1992 as
a Portfolio Assistant. He was named Vice President, Investment Officer on
January 1, 1995, and Managing Director on January 1, 1996. Mr. Mrakovcic is also
Vice President and Portfolio Manager of Seligman Frontier Fund, Inc. and Vice
President of Seligman Portfolios, Inc. and Portfolio Manager of its Seligman
Frontier Portfolio and Co-Portfolio Manager of its Seligman Henderson Global
Smaller Companies Portfolio.

HIML's International Team in respect of the Global Smaller Companies Fund is
headed by Mr. Iain C. Clark. Mr. Clark's business experience is discussed above
under "International Fund."

The Global Technology Fund is co-managed by Seligman's Technology Team and
HIML's International Team. The Technology Team is headed by Mr. Paul H. Wick,
Vice President of Seligman Henderson Global Fund Series, Inc. and Co-Portfolio
Manager of the Global Technology Fund since May 1994. Mr. Wick has been a
Managing Director of Seligman since January 1995 and a Director of Seligman
since November 1997. He joined Seligman in 1987 as an Associate, Investment
Research. Mr. Wick has been Vice President and Portfolio Manager of Seligman
Communications and Information Fund, Inc. since January 1990 and December 1989,
respectively. He is also Vice President of Seligman Portfolios, Inc. and
Portfolio Manager of its Seligman Communications and Information Portfolio and
Co-Portfolio Manager of its Seligman Henderson Global Technology Portfolio.

HIML's International Team in respect of the Global Technology Fund is headed by
Mr. Brian Ashford-Russell, Vice President of Seligman Henderson Global Fund
Series, Inc. and Co-Portfolio Manager of the Global Technology Fund. Mr.
Ashford-Russell is also Vice President of Seligman Portfolios, Inc. and
Co-Portfolio Manager of its Seligman Henderson Global Technology Portfolio. He
has been a portfolio manager with Henderson plc since February 1993.
    


                                       23
<PAGE>


YEAR 2000

As the millennium approaches, mutual funds, financial and business
organizations, and individuals could be adversely affected if their computer
systems do not properly process and calculate date-related information and data
on and after January 1, 2000. Like other mutual funds, the Funds rely upon
service providers and their computer systems for their day-to-day operations.
Many of the Funds' service providers in turn depend upon computer systems of
their vendors. Seligman and SDC have established a year 2000 project team. The
team's purpose is to assess the state of readiness of Seligman and SDC and the
Funds' other service providers and vendors. The team is comprised of several
information technology and business professionals as well as outside
consultants. The Project Manager of the team reports directly to the
Administrative Committee of Seligman. The Project Manager and other members of
the team also report to the Funds' Board of Directors and its Audit Committee.

   
The team has identified the service providers and vendors who furnish critical
services or software systems to the Funds, including securities firms that
execute portfolio transactions for the Funds and firms responsible for
shareholder account recordkeeping. The team is working with these critical
service providers and vendors to evaluate the impact year 2000 issues may have
on their ability to provide uninterrupted services to the Funds. The team will
assess the feasibility of their year 2000 plans. The team has made progress on
its year 2000 contingency plans - recovery efforts the team will employ in the
event that year 2000 issues adversely affect the Funds. The team anticipates
finalizing these plans in the near future.
    

The Funds anticipate the team will implement all significant components of the
team's year 2000 plans by mid-1999, including appropriate testing of critical
systems and receipt of satisfactory assurances from critical service providers
and vendors regarding their year 2000 compliance. The Funds believe that the
critical systems on which they rely will function properly on and after the year
2000, but this is not guaranteed. If these systems do not function properly, or
the Funds' critical service providers are not successful in implementing their
year 2000 plans, the Funds' operations may be adversely affected, including
pricing and securities trading and settlement, and the provision of shareholder
services.

   
In addition, the Funds may hold securities of issuers whose underlying business
leaves them susceptible to year 2000 issues. The Funds may also hold securities
issued by governmental or quasi-governmental issuers, which, like other
organizations, are also susceptible to year 2000 concerns. Year 2000 issues may
affect an issuer's operations, creditworthiness, and ability to make timely
payment on any indebtedness and could have an adverse impact on the value of its
securities. If the Funds hold these securities, the Funds' performance could be
negatively affected. Seligman seeks to identify an issuer's state of year 2000
readiness as part of the research it employs. However, the perception of an
issuer's year 2000 preparedness is only one of the many factors considered in
determining whether to buy, sell, or continue to hold a security. Information
provided by issuers concerning their state of readiness may or may not be
accurate or readily available. Further, the Fund may be adversely affected if
the exchanges, markets, depositories, clearing agencies, or government or third
parties responsible for infrastructure needs do not address their year 2000
issues in a satisfactory manner.
    

SDC has informed the Funds that it does not expect the cost of its services to
increase materially as a result of the modifications to its computer systems
necessary to prepare for the year 2000. The Funds will not pay to remediate the
systems of Seligman or bear directly the costs to remediate the systems of any
other service providers or vendors, other than SDC.



                                       24
<PAGE>


   
EURO CONVERSION

On January 1, 1999, 11 of the 15 member countries in the European Union adopted
the "euro" as a common legal currency. For European issuers, and other entities
with significant markets or operations in Europe (whether or not in the
participating countries), the euro conversion may create strategic challenges as
these entities adapt to a single transnational currency.

The Funds, Seligman, and HIML are monitoring the changing marketplace in Europe
to seek to identify investment opportunities created by the euro and avoid
investments that may adversely affect the performance of any Fund. Despite these
efforts, a Fund's performance may be adversely affected if the issuers of
securities that are purchased, held, or sold by a Fund do not adapt to the
potential changes in the European marketplace as a result of the euro. For
example, the euro will likely result in greater price transparency (making it
more difficult for businesses to charge different prices for the same products
on a country-by-country basis), thereby creating a more competitive marketplace
in Europe. As a result, European issuers and other issuers with significant
markets or operations in Europe (whether or not in the participating countries),
may be adversely affected if they do not adapt to this new competitive
marketplace by cutting costs and streamlining operations. Further, any
participating country may opt out of the euro within the first three years. A
participating country may decide to opt out of the euro for several reasons,
including high unemployment, lack of economic growth, or frustration with the
lack of unity in the participating countries' economies. The risk of one or more
participating countries opting out of the euro is enhanced by the participating
countries' lack of control over their own monetary policies as they have
delegated this function to the European Central Bank. Issuers in a participating
country, as well as other issuers globally, may be adversely impacted in the
event that a participating country terminates its participation in the euro or
the euro itself collapses due to disagreements among the governments of the
participating countries.
    


                                       25
<PAGE>


Shareholder Information

DECIDING WHICH CLASS OF SHARES TO BUY

   
Each of the Fund's Classes represents an interest in the same portfolio of
investments. However, each Class has its own sales charge schedule and is
subject to different ongoing 12b-1 fees. When deciding which Class of shares to
buy, you should consider, among other things:
    

     o    The amount you plan to invest.

   
     o    How long you intend to remain invested in that Fund, or another
          Seligman mutual fund.
    

     o    If you would prefer to pay an initial sales charge and lower ongoing
          12b-1 fees, or be subject to a CDSC and pay higher ongoing 12b-1 fees.

     o    Whether you may be eligible for reduced or no sales charges when you
          buy or sell shares. Your financial advisor will be able to help you
          decide which Class of shares best meets your needs.

<TABLE>
<CAPTION>
- ------------------------------------------------------------------------------------------------------------
Class A

     o    Initial sales charge on Fund purchases, as set forth below:

                                                                    Sales Charge             Regular Dealer
                                           Sales Charge                as a %                  Discount
                                              as a %                   of Net                  as a % of
     Amount of your Investment         of Offering Price(1)        Amount Invested          Offering Price
     -------------------------         --------------------        ---------------          --------------
<S>                                            <C>                      <C>                      <C>
     Less than $ 50,000                        4.75%                    4.99%                    4.25%
     $50,000 - $ 99,999                        4.00                     4.17                     3.50
     $100,000 - $249,999                       3.50                     3.63                     3.00
     $250,000 - $499,999                       2.50                     2.56                     2.25
     $500,000 - $999,999                       2.00                     2.04                     1.75
     $1,000,000 and over(2)                    0.00                     0.00                     0.00

     (1)  "Offering Price" is the amount that you actually pay for Fund shares;
          it includes the initial sales charge.

     (2)  You will not pay a sales charge on purchases of $1 million or more,
          but you will be subject to a 1% CDSC if you sell your shares within 18
          months.

o    Annual 12b-1 fee (for shareholder services) of up to 0.25%.

o    No sales charge on reinvested dividends or capital gain distributions.
- ------------------------------------------------------------------------------------------------------------
</TABLE>

<TABLE>
<CAPTION>
- ------------------------------------------------------------------------------------------------------------
Class B

o    No initial sales charge on purchases.

o    A declining CDSC on shares sold within 6 years of purchase:

     Years Since Purchase                            CDSC
     --------------------                            ----
<S>                                                   <C>
     Less than 1 year                                 5%
     1 year or more but less than 2 years             4
     2 years or more but less than 3 years            3
     3 years or more but less than 4 years            3
     4 years or more but less than 5 years            2
     5 years or more but less than 6 years            1
     6 years or more                                  0

================================================================================
Your purchase of Class B shares must be for less than $250,000, because if you
are investing $250,000 or more you will pay less in fees and charges if you buy
another Class of shares.
================================================================================

o    Annual 12b-1 fee (for distribution and shareholder services) of 1.00%.

o    Automatic conversion to Class A shares after eight years, resulting in
     lower ongoing 12b-1 fees.

o    No CDSC on redemptions of shares purchased with reinvested dividends or
     capital gain distributions.
- ------------------------------------------------------------------------------------------------------------
</TABLE>


                                       26
<PAGE>


- --------------------------------------------------------------------------------
Class D

     o    No initial sales charge on purchases.

     o    A 1% CDSC on shares sold within one year of purchase.

     o    Annual 12b-1 fee (for distribution and shareholder services) of 1.00%.

     o    No automatic conversion to Class A shares, so you will be subject to
          higher ongoing 12b-1 fees indefinitely.

     o    No CDSC on redemptions of shares purchased with reinvested dividends
          or capital gain distributions.
- --------------------------------------------------------------------------------

Each Fund has adopted a plan under Rule 12b-1 of the Investment Company Act of
1940 that allows each Class to pay 12b-1 fees for the sale and distribution of
its shares and/or for providing services to shareholders.

Because each Fund's 12b-1 fees are paid out of each Class's assets on an ongoing
basis, over time these fees will increase your investment expenses and may cost
you more than other types of sales charges.

The Funds' Board of Directors believes that no conflict of interest currently
exists between each Fund's Class A, Class B, and Class D shares. On an ongoing
basis, the Directors, in the exercise of their fiduciary duties under the
Investment Company Act of 1940 and Maryland law, will seek to ensure that no
such conflict arises.

How CDSCs Are Calculated

To minimize the amount of CDSC you may pay when you sell your shares, each Fund
assumes that shares acquired through reinvested dividends and capital gain
distributions (which are not subject to a CDSC) are sold first. Shares that have
been in your account long enough so they are not subject to a CDSC are sold
next. After these shares are exhausted, shares will be sold in the order they
were purchased (oldest to youngest). The amount of any CDSC that you pay will be
based on the shares' original purchase price or current net asset value,
whichever is less.

   
You will not pay a CDSC when you exchange shares of any Fund to buy the same
class of shares of any other Seligman mutual fund. For the purpose of
calculating the CDSC when you sell shares that you acquired by exchanging shares
of any Fund, it will be assumed that you held the shares since the date you
purchased the shares of that Fund.
    




                                       27
<PAGE>


PRICING OF FUND SHARES

   
When you buy or sell shares, you do so at the Class's net asset value (NAV) next
calculated after Seligman Advisors accepts your request. Any applicable sales
charge will be added to the purchase price for Class A shares. Purchase or sale
orders received by an authorized dealer or financial advisor by the close of
regular trading on the New York Stock Exchange (NYSE) (normally 4:00 p.m.
Eastern time) and accepted by Seligman Advisors before the close of business
(5:00 p.m. Eastern time) on the same day will be executed at the Class's NAV
calculated as of the close of regular trading on the NYSE on that day. Your
broker/dealer or financial advisor is responsible for forwarding your order to
Seligman Advisors before the close of business.
    

- --------------------------------------------------------------------------------
NAV:

Computed separately for each Class by dividing that Class's share of the net
assets of the Fund (i.e., its assets less liabilities) by the total number of
outstanding shares of the Class.
- --------------------------------------------------------------------------------

   
If your buy or sell order is received by your broker/dealer or financial advisor
after the close of regular trading on the NYSE, or is accepted by Seligman
Advisors after the close of business, the order will be executed at the Class's
NAV calculated as of the close of regular trading on the next NYSE trading day.
When you sell shares, you receive the Class's per share NAV, less any applicable
CDSC.
    

The NAV of each Fund's shares is determined each day, Monday through Friday, on
days that the NYSE is open for trading. Because the Funds have portfolio
securities that are primarily listed on foreign exchanges that may trade on
weekends or other days when the Funds do not price their shares, the value of a
Fund's portfolio securities may change on days when you may not be able to buy
or sell Fund shares. Because of their higher 12b-1 fees, the NAV of Class B and
Class D shares will generally be lower than the NAV of Class A shares of the
same Fund.

Securities owned by a Fund are valued at current market prices. If reliable
market prices are unavailable, securities are valued in accordance with
procedures approved by the Board of Directors.

OPENING YOUR ACCOUNT

   
The Funds' shares are sold through authorized broker/dealers or financial
advisors who have sales agreements with Seligman Advisors. There are several
programs under which you may be eligible for reduced sales charges. Ask your
financial advisor if any of these programs apply to you.

To make your initial investment in a Fund, contact your financial advisor or
complete an account application and send it with your check directly to SDC at
the address provided on the account application. If you do not choose a Class,
your investment will automatically be made in Class A shares.
    

- --------------------------------------------------------------------------------
You may buy shares of any Fund for all types of tax-deferred retirement plans.
Contact Retirement Plan Services at the address or phone number listed on the
inside back cover of this prospectus for information and to receive the proper
forms
- --------------------------------------------------------------------------------

The required minimum initial investments are:

     o    Regular (non-retirement) accounts: $1,000

     o    For accounts opened concurrently with Invest-A-Check(R):
          $100 to open if you will be making monthly investments
          $250 to open if you will be making quarterly investments

   
If you buy shares by check and subsequently sell the shares, SDC will not send
your proceeds until your check clears which could take up to 15 calendar days
from the date of your purchase.

You will be sent a statement confirming your purchase, and any subsequent
transactions in your account. You will also be sent at least annually, a
statement detailing all your transactions in that Fund and all other Seligman
funds you own. Duplicate account statements will be sent to you free of charge
for the current year and most recent prior year. Copies of year-end statements
for prior years are available for a fee of $10 per year, per account, with a
maximum charge of $150 per account. Send your request and a check for the fee to
SDC.
    

    If you want to be able to buy, sell, or exchange shares by telephone, you
      should complete an application when you open your account. This will
        prevent you from having to complete a supplemental election form
           (which may require a signature guarantee) at a later date.



                                       28
<PAGE>


HOW TO BUY ADDITIONAL SHARES

After you have made your initial investment, there are many options available to
make additional purchases of Fund shares. Shares may be purchased through your
authorized financial advisor, or you may send a check directly to SDC. Please
provide either an investment slip or a note that provides your name(s), Fund
name, and account number. Unless you indicate otherwise, your investment will be
made in the Class you already own. Send investment checks to:

                 Seligman Data Corp.
                 P.O. Box 9766
                 Providence, RI 02940-5051

   
Your check must be in US dollars and be drawn on a US bank. You may not use
third party or credit card convenience checks for investment.
    

You may also use the following account services to make additional investments:

Invest-A-Check(R). You may buy Fund shares electronically from a savings or
checking account of an Automated Clearing House (ACH) member bank. If your bank
is not a member of ACH, the Fund will debit your checking account by
preauthorized checks. You may buy Fund shares at regular monthly intervals in
fixed amounts of $100 or more, or regular quarterly intervals in fixed amounts
of $250 or more. If you use Invest-A-Check(R), you must continue to make
automatic investments until the Fund's minimum initial investment of $1,000 is
met or your account may be closed.

Automatic Dollar-Cost-Averaging. If you have at least $5,000 in Seligman Cash
Management Fund, you may exchange uncertificated shares of that fund to buy
shares of the same class of another Seligman mutual fund at regular monthly
intervals in fixed amounts of $100 or more or regular quarterly intervals in
fixed amounts of $250 or more. If you exchange Class A shares, you may pay an
initial sales charge to buy Fund shares.

   
Automatic CD Transfer. You may instruct your bank to invest the proceeds of a
maturing bank certificate of deposit (CD) in shares of the Fund. If you wish to
use this service, contact SDC or your financial advisor to obtain the necessary
forms. Because your bank may charge you a penalty, it is not normally advisable
to withdraw CD assets before maturity.
    

Dividends From Other Investments. You may have your dividends from other
companies paid to the Fund. (Dividend checks must include your name, account
number, Fund name, and Class of shares.)

Direct Deposit. You may buy Fund shares electronically with funds from your
employer, the IRS, or any other institution that provides direct deposit. Call
SDC for more information.

   
Seligman Time Horizon MatrixSM. (Requires an initial total investment of
$10,000.) This is a needs-based investment process, designed to help you and
your financial advisor plan to seek your long-term financial goals. It considers
your financial needs, and helps frame a personalized asset allocation strategy
around the cost of your future commitments and the time you have to meet them.
Contact your financial advisor for more information.
    

Seligman Harvester. If you are a retiree or nearing retirement, this program is
designed to help you establish an investment strategy that seeks to meet your
needs throughout your retirement. The strategy is customized to your personal
financial situation by allocating your assets to seek to address your income
requirements, prioritizing your expenses, and establishing a prudent withdrawal
schedule. Contact your financial advisor for more information.


                                       29
<PAGE>

   
HOW TO EXCHANGE SHARES AMONG THE SELIGMAN MUTUAL FUNDS
    

You may sell Fund shares to buy shares of the same Class of another Seligman
mutual fund, or you may sell shares of another Seligman mutual fund to buy
shares of any Fund. Exchanges will be made at each fund's respective NAV. You
will not pay an initial sales charge when you exchange, unless you exchange
Class A shares of Seligman Cash Management Fund to buy Class A shares of a Fund
or another Seligman mutual fund.

   
Only your dividend and capital gain distribution options and telephone services
will be automatically carried over to any new fund account. If you wish to carry
over any other account options (for example, Invest-A-Check(R)-or Systematic
Withdrawals) to the new fund, you must specifically request so at the time of
your exchange.
    

If you exchange into a new fund, you must exchange enough to meet the new fund's
minimum initial investment.

See "The Seligman Mutual Funds" for a list of the funds available for exchange.
Before making an exchange, contact your financial advisor or SDC to obtain the
applicable fund prospectus(es), which you should read and understand before
investing.

HOW TO SELL SHARES

The easiest way to sell Fund shares is by phone. If you have telephone services,
you may be able use this service to sell Fund shares. Restrictions apply to
certain types of accounts. Please see "Important Policies That May Affect Your
Account."

   
When you sell Fund shares by phone, a check for the proceeds is sent to your
address of record. If you have current ACH bank information on file, you may
have the proceeds of the sale of your Fund shares directly deposited into your
bank account (typically, 3-4 business days after your shares are sold).

You may sell shares to the Fund through a broker/dealer or your financial
advisor. The Fund does not charge for this transaction; however the dealer or
financial advisor may charge a service fee. Contact your financial advisor for
more information.

You may always send a written request to sell Fund shares. It may take longer to
get your money if you send your request by mail.
    

You will need to guarantee your signature(s) if the proceeds are:

     (1)  $50,000 or more;

     (2)  to be paid to someone other than all account owners, or

     (3)  mailed to other than your address of record.

- --------------------------------------------------------------------------------
Signature Guarantee:

Protects you and the Funds from fraud. It guarantees that a signature is
genuine. A guarantee must be obtained from an eligible financial institution.
Notarization by a notary public is not an acceptable guarantee.
- --------------------------------------------------------------------------------

You may need to provide additional documents to sell Fund shares if you are:

     o    a corporation;

     o    an executor or administrator;

     o    a trustee or custodian; or

     o    in a retirement plan.

If your Fund shares are represented by certificates, you will need to surrender
the certificates to SDC before you sell your shares.

Contact your financial advisor or SDC's Shareholder Services Department for
information on selling your shares under any of the above circumstances.

You may also use the following account service to sell Fund shares:

Systematic Withdrawal Plan. If you have at least $5,000 in a Fund, you may
withdraw (sell) a fixed amount (minimum of $50) of uncertificated shares at
regular intervals. A check will be sent to you at your address of record or, if
you have current ACH bank information on file, you may have your payments
directly deposited to your predesignated bank account in 3-4 business days after
your shares are sold. If you bought $1,000,000 or more of Class A shares without
an initial sales charge, your withdrawals may be subject to a 1% CDSC if they
occur within 18 months of purchase. If you own Class B or Class D shares and
reinvest your dividends and capital gain distributions, you may withdraw 12% or
10%, respectively, of the value of your Fund account (at the time of election)
annually without a CDSC.


                                       30
<PAGE>


IMPORTANT POLICIES THAT MAY AFFECT YOUR ACCOUNT

To protect you and other shareholders, each Fund reserves the right to:

     o    Refuse an exchange request if:

          1.   you have exchanged twice from the same fund in any three-month
               period;

          2.   the amount you wish to exchange equals the lesser of $1,000,000
               or 1% of the Fund's net assets; or

          3.   you or your financial advisor have been advised that previous
               patterns of purchases and sales or exchanges have been considered
               excessive.

     o    Refuse any request to buy Fund shares.

     o    Reject any request received by telephone.

     o    Suspend or terminate telephone services.

     o    Reject a signature guarantee that SDC believes may be fraudulent.

     o    Close your fund account if its value falls below $500.

     o    Close your account if it does not have a certified taxpayer
          identification number.

Telephone Services

   
You and your broker/dealer or financial advisor will be able to place the
following requests by telephone, unless you indicate on your account application
that you do not want telephone services:

     o    Sell uncertificated shares (up to $50,000 per day, payable to account
          owner(s) and mailed to address of record).

     o    Exchange shares between funds.

     o    Change dividend and/or capital gain distribution options.

     o    Change your address.
    

     o    Establish systematic withdrawals to address of record.

If you do not complete an account application when you open your account,
telephone services must be elected on a supplemental election form (which may
require a signature guarantee).

Restrictions apply to certain types of accounts:

     o    Trust accounts on which the current trustee is not listed may not sell
          Fund shares by phone.

     o    Corporations may not sell Fund shares by phone.

     o    IRAs may only exchange Fund shares or request address changes by
          phone.

     o    Group retirement plans may not sell Fund shares by phone; plans that
          allow participants to exchange by phone must provide a letter of
          authorization signed by the plan custodian or trustee and provide a
          supplemental election form signed by all plan participants.

Unless you have current ACH bank information on file, you will not be able to
sell Fund shares by phone within thirty days following an address change.

Your request must be communicated to an SDC representative. You may not request
any phone transactions via the automated access line.

   
You may cancel telephone services at any time by sending a written request to
SDC. Each account owner, by accepting or adding telephone services, authorizes
each of the other owners to make requests by phone. Your broker/dealer or
financial advisor representative may not establish telephone services without
your written authorization. SDC will send written confirmation to the address of
record when telephone services are added or terminated.
    

During times of heavy call volume, you may not be able to get through to SDC by
phone to request a sale or exchange of Fund shares. In this case, you may need
to write, and it may take longer for your request to be processed. A Fund's NAV
may fluctuate during this time.

The Funds and SDC will not be liable for processing requests received by phone
as long as it was reasonable to believe that the request was genuine.

Reinstatement Privilege

   
If you sell Fund shares, you may, within 120 calendar days, use part or all of
the proceeds to buy shares of the same Fund or any other Seligman mutual fund
(reinstate your investment) without paying an initial sales charge or, if you
paid a CDSC when you sold your shares, receiving a credit for the applicable
CDSC paid. This privilege is available only once each calendar year. Contact
your financial advisor for more information. You should consult your tax advisor
concerning possible tax consequences of exercising this privilege.
    



                                       31
<PAGE>


DIVIDENDS AND CAPITAL GAIN DISTRIBUTIONS

Each Fund generally pays any dividends from its net investment income and
distributes net capital gains realized on investments annually. It is expected
that each Fund's distributions will be primarily capital gains.

- --------------------------------------------------------------------------------
Dividend:

A payment by a mutual fund, usually derived from the fund's net investment
income (dividends and interest earned on portfolio securities less expenses).

Capital Gain Distribution:

A payment to mutual fund shareholders which represents profits realized on the
sale of securities in a fund's portfolio.

Ex-dividend Date:

The day on which any declared distributions (dividends or capital gains) are
deducted from a fund's assets before it calculates its NAV.
- --------------------------------------------------------------------------------

   
You may elect to:
    

     (1)  reinvest both dividends and capital gain distributions;

   
     (2)  receive dividends in cash and reinvest capital gain distributions; or

     (3)  receive both dividends and capital gain distributions in cash.

Your dividends and capital gain distributions will be reinvested if you do not
instruct otherwise or if you own Fund shares in a Seligman tax-deferred
retirement plan.
    

If you want to change your election, you may write SDC at the address listed on
the back cover of this prospectus, or, if you have telephone services, you or
your financial advisor may call SDC. Your request must be received by SDC before
the record date to be effective for that dividend or capital gain distribution.

Cash dividends or capital gain distributions will be sent by check to your
address of record or, if you have current ACH bank information on file, directly
deposited into your predesignated bank account within 3-4 business days from the
payable date.

Dividends and capital gain distributions are reinvested to buy additional Fund
shares on the payable date using the NAV of the ex-dividend date.

Dividends on Class B and Class D shares will be lower than the dividends on
Class A shares as a result of their higher 12b-1 fees. Capital gain
distributions will be paid in the same amount for each Class.

TAXES

The tax treatment of dividends and capital gain distributions is the same
whether you take them in cash or reinvest them to buy additional Fund shares.
Tax-deferred retirement plans are not taxed currently on dividends or capital
gain distributions or on exchanges.

   
You may be taxed at different rates on capital gains distributed by the Fund
depending on the length of time the Fund holds its assets.
    

When you sell Fund shares, any gain or loss you realize will generally be
treated as a long-term capital gain or loss if you held your shares for more
than one year, or as a short-term capital gain or loss if you held your shares
for one year or less. However, if you sell Fund shares on which a long-term
capital gain distribution has been received and you held the shares for six
months or less, any loss you realize will be treated as a long-term capital loss
to the extent that it offsets the long-term capital gain distribution.

An exchange of Fund shares is a sale and may result in a gain or loss for
federal income tax purposes.

Each January, you will be sent information on the tax status of any
distributions made during the previous calendar year. Because each shareholder's
situation is unique, you should always consult your tax advisor concerning the
effect income taxes may have on your individual investment.


                                       32
<PAGE>


THE SELIGMAN MUTUAL FUNDS

EQUITY
SPECIALTY
- --------------------------------------------------------------------------------
Seligman Communications and
Information Fund

Seeks capital appreciation by investing in companies operating in all aspects of
the communications, information, and related industries.

   
Seligman Henderson Global Technology Fund
    

Seeks long-term capital appreciation by investing primarily in global securities
(US and non-US) of companies in the technology and technology-related
industries.

   
Seligman Henderson Emerging Markets
Growth Fund
    

Seeks long-term capital appreciation by investing primarily in equity securities
of companies in emerging markets.

SMALL COMPANY
- --------------------------------------------------------------------------------
Seligman Frontier Fund

   
Seeks growth of capital by investing primarily in small company growth stocks.
    

Seligman Small-Cap Value Fund

Seeks long-term capital appreciation by investing in equities of small
companies, deemed to be "value" companies by the investment manager.

   
Seligman Henderson Global Smaller
Companies Fund
    

Seeks long-term capital appreciation by investing in securities of smaller
companies around the world, including the US.

MEDIUM COMPANY
- --------------------------------------------------------------------------------
Seligman Capital Fund

Seeks capital appreciation by investing in the common stocks of companies with
significant potential for growth.

LARGE COMPANY
- --------------------------------------------------------------------------------
Seligman Growth Fund

Seeks long-term growth of capital value and an increase in future income.

   
Seligman Henderson Global Growth
Opportunities Fund
    

Seeks capital appreciation by investing primarily in equity securities of
companies that have the potential to benefit from global economic or social
trends.

Seligman Large-Cap Value Fund

Seeks long-term capital appreciation by investing in equities of large
companies, deemed to be "value" companies by the investment manager.

   
Seligman Common Stock Fund
    

Seeks favorable, but not the highest, current income and long-term growth of
both income and capital, without exposing capital to undue risk.

   
Seligman Henderson International Fund
    

Seeks long-term capital appreciation by investing in securities of medium- to
large-sized companies, primarily in the developed markets outside the US.

BALANCED
- --------------------------------------------------------------------------------
Seligman Income Fund

Seeks high current income and improvement in capital value over the long term,
consistent with prudent risk of capital.

FIXED-INCOME

INCOME
- --------------------------------------------------------------------------------
   
Seligman High-Yield Bond Fund
    

Seeks to maximize current income by investing in a diversified portfolio of
high-yielding, high-risk corporate bonds, commonly referred to as "junk bonds."

   
Seligman U.S. Government Securities Fund
    

Seeks high current income primarily by investing in a diversified portfolio of
securities guaranteed by the US government, its agencies, or instrumentalities,
which have maturities greater than one year.

MUNICIPAL
- --------------------------------------------------------------------------------
   
Seligman Municipal Funds:
National Fund
    

Seeks maximum income, exempt from regular federal income taxes.

   
State-specific funds:*
    

Seek to maximize income exempt from regular federal income taxes and from
regular income taxes in the designated state.

California        Louisiana          New Jersey
 oHigh-Yield      Maryland           New York
 oQuality         Massachusetts      North Carolina
Colorado          Michigan           Ohio
Florida           Minnesota          Oregon
Georgia           Missouri           Pennsylvania
                                     South Carolina
* A small portion of income may be subject to state taxes.

MONEY MARKET
- --------------------------------------------------------------------------------
Seligman Cash Management Fund

Seeks to preserve capital and to maximize liquidity and current income, by
investing only in high-quality money market securities having a maturity of 90
days or less. The fund seeks to maintain a constant net asset value of $1.00 per
share.


                                       33
<PAGE>


Financial Highlights

   
The tables below are intended to help you understand the financial performance
of each Fund's Classes for the past five years or, if less than five years, the
period of the Class's operations. Certain information reflects financial results
for a single share of a Class that was held throughout the periods shown. "Total
return" shows the rate that you would have earned (or lost) on an investment in
the Fund, assuming you reinvested all your dividends and capital gain
distributions. Total returns do not reflect any sales charges. Deloitte & Touche
LLP, independent auditors, have audited this information. Their report, along
with each Fund's financial statements, is included in the Funds' annual report,
which is available upon request.
    

INTERNATIONAL FUND

<TABLE>
<CAPTION>
                                                                   CLASS A                                      CLASS B
                                            ------------------------------------------------------     ---------------------------
                                                                                                          Year ended      4/22/96*
                                                           Year ended October 31,                         October 31,        to
                                            ------------------------------------------------------     ----------------   --------
                                              1998        1997       1996       1995        1994        1998      1997    10/31/96
                                            -------     -------     -------    -------     -------     ------    ------   --------
   
<S>                                         <C>         <C>         <C>        <C>         <C>         <C>       <C>       <C>
Per Share Data:(1)
Net asset value, beginning of period ....   $ 17.92     $ 17.17     $ 16.71    $ 17.67     $ 15.98     $17.30    $16.74    $17.38
                                            -------     -------     -------    -------     -------     ------    ------    ------
Income from investment operations:
  Net investment income .................      0.03       (0.04)       0.05       0.06        0.04      (0.12)    (0.18)    (0.03)
  Net gains or losses on securities
    (both realized and unrealized) ......      0.62        2.47        1.77      (0.42)       0.91       0.57      2.42     (0.54)
  Net gains or losses on foreign
    currency transactions (both
    realized and unrealized)(2) .........      0.40       (0.79)      (0.44)      0.09        1.08       0.40     (0.79)    (0.07)
                                            -------     -------     -------    -------     -------     ------    ------    ------
Total from investment operations ........      1.05        1.64        1.38      (0.27)       2.03       0.85      1.45     (0.64)
                                            -------     -------     -------    -------     -------     ------    ------    ------
Less distributions:
  Dividends (from net income) ...........        --          --          --         --       (0.01)        --        --        --
  Distributions (from capital gains) ....     (1.22)      (0.89)      (0.92)     (0.69)      (0.33)     (1.22)    (0.89)       --
                                            -------     -------     -------    -------     -------     ------    ------    ------
Total distributions .....................     (1.22)      (0.89)      (0.92)     (0.69)      (0.34)     (1.22)    (0.89)       --
                                            -------     -------     -------    -------     -------     ------    ------    ------
Net asset value, end of period ..........   $ 17.75     $ 17.92     $ 17.17    $ 16.71     $ 17.67     $16.93    $17.30    $16.74
                                            =======     =======     =======    =======     =======     ======    ======    ======
Total return ............................      6.51%       9.83%       8.43%     (1.24)%     12.85%      5.51%     8.90%    (3.68)%

Ratios/Supplemental Data:
Net assets, end of period (in thousands)    $44,122     $46,107     $50,998    $48,763     $62,922     $9,835    $6,350    $2,843
Ratio of expenses to average net assets .      1.69%       1.78%       1.81%      1.69%       1.63%      2.55%     2.58%     2.66%+
Ratio of net income to average net assets      0.16%      (0.23)%      0.28%      0.35%       0.27%     (0.70)%   (1.03)%   (0.35)%+
Portfolio turnover rate .................     81.37%      83.11%      55.71%     60.70%      39.59%     81.37%    83.11%    55.71%++
</TABLE>

- ----------
See footnotes on page 40.
    



                                       34
<PAGE>


Seligman Global Fund Series(p. #)

INTERNATIONAL FUND

<TABLE>
<CAPTION>
                                                                                            CLASS D
                                                            ----------------------------------------------------------------------
                                                                                    Year ended October 31,
                                                            ----------------------------------------------------------------------
                                                               1998           1997           1996           1995           1994
                                                            ----------     ----------     ----------     ----------     ----------
<S>                                                         <C>            <C>            <C>            <C>            <C>
   
Per Share Data:(1)
Net asset value, beginning of period ....................   $    17.30     $    16.74     $    16.43     $    17.53     $    15.96
                                                            ----------     ----------     ----------     ----------     ----------
Income from investment operations:
  Net investment income .................................        (0.12)         (0.18)         (0.08)         (0.07)         (0.09)
  Net gains or losses on securities
    (both realized and unrealized) ......................         0.57           2.42           1.75          (0.43)          0.91
  Net gains or losses on foreign currency
    transactions (both realized and unrealized)(2) ......         0.40          (0.79         )(0.44          )0.09           1.08
                                                            ----------     ----------     ----------     ----------     ----------
Total from investment operations ........................         0.85           1.45           1.23          (0.41)          1.90
                                                            ----------     ----------     ----------     ----------     ----------
Less Distributions:
  Dividends (from net income) ...........................           --             --             --             --             --
  Distributions (from capital gains) ....................        (1.22)         (0.89)         (0.92)         (0.69)         (0.33)
                                                            ----------     ----------     ----------     ----------     ----------
Total distributions .....................................        (1.22)         (0.89)         (0.92)         (0.69)         (0.33)
                                                            ----------     ----------     ----------     ----------     ----------
Net asset value, end of period ..........................   $    16.93     $    17.30     $    16.74     $    16.43     $    17.53
                                                            ==========     ==========     ==========     ==========     ==========
Total return ............................................         5.51%          8.90%          7.62%         (2.08)%        12.03%

Ratios/Supplemental Data:
Net assets, end of period (in thousands) ................   $   37,485     $   40,977     $   47,917     $   31,273     $   19,903
Ratio of expenses to average net assets .................         2.55%          2.58%          2.64%          2.50%          2.50%
Ratio of net income to average net assets ...............        (0.70)%        (1.03)%        (0.47)%        (0.44)%        (0.53)%
Portfolio turnover rate .................................        81.37%         83.11%         55.71%         60.70%         39.59%
Without expense reimbursement and/or
  management fee waiver:(3)
  Ratios:
  Expenses to average net assets ........................                                                      2.62%          2.67%
  Net investment income to average net assets ...........                                                     (0.56)%        (0.70)%
</TABLE>

- ----------
See footnotes on page 40.
    


                                       35
<PAGE>


EMERGING MARKETS GROWTH FUND

<TABLE>
<CAPTION>
                                                                  CLASS A                              CLASS B
                                                     ----------------------------------     -------------------------------
                                                          Year ended                             Year ended
                                                          October 31,         5/28/96**          October 31,       5/28/96*
                                                     --------------------        to         -------------------       to
                                                       1998         1997      10/31/96       1998        1997      10/31/96
                                                     -------      -------     --------      -------     -------    --------
<S>                                                  <C>          <C>          <C>          <C>         <C>         <C>
   
Per Share Data:(1)
Net asset value, beginning of period .............   $  7.34      $  6.78      $  7.14      $  7.27     $  6.76     $  7.14
                                                     -------      -------      -------      -------     -------     -------
Income from investment operations:
  Net investment income ..........................     (0.01)       (0.05)       (0.02)       (0.06)      (0.11)      (0.04)
  Net gains or losses on securities
    (both realized and unrealized) ...............     (2.00)        1.05        (0.25)       (1.97)       1.06       (0.25)
  Net gains or losses on foreign currency
    transactions (both realized and unrealized)(2)     (0.15)       (0.44)       (0.09)       (0.15)      (0.44)      (0.09)
                                                     -------      -------      -------      -------     -------     -------
Total from investment operations .................     (2.16)        0.56        (0.36)       (2.18)       0.51       (0.38)
                                                     -------      -------      -------      -------     -------     -------
Less distributions:
  Distributions ..................................        --           --           --           --          --          --
                                                     -------      -------      -------      -------     -------     -------
Total distributions ..............................        --           --           --           --          --          --
                                                     -------      -------      -------      -------     -------     -------
Net asset value, end of period ...................   $  5.18      $  7.34      $  6.78      $  5.09     $  7.27     $  6.76
                                                     =======      =======      =======      =======     =======     =======
Total return .....................................    (29.43)%       8.26%       (5.04)%     (29.99)%      7.54%      (5.32)%

Ratios/Supplemental Data:
Net assets, end of period (in thousands) .........   $24,294      $44,061      $19,864      $16,031     $28,819     $10,541
Ratio of expenses to average net assets ..........      2.22%        2.27%        2.22%+       2.99%       3.04%       3.00%+
Ratio of net income to average net assets ........     (0.12)%      (0.56)%      (0.69)%+     (0.89)%     (1.33)%     (1.47)%+
Portfolio turnover rate ..........................     94.09%       84.09%       12.24%       94.09%      84.09%      12.24%
Without expense reimbursement and/or
  management fee waiver:(3)
  Ratios:
  Expenses to average net assets .................                                3.02%+                               3.80%+
  Net investment income to average net assets ....                               (1.49)%+                             (2.27)%+
    

<CAPTION>
                                                                                   CLASS D
                                                             -----------------------------------------------------
                                                                       Year ended
                                                                       October 31,                       5/28/96*
                                                             --------------------------------               to
                                                                1998                  1997               10/31/96
                                                             ----------            ----------           ----------
<S>                                                          <C>                   <C>                  <C>
   
Per Share Data:(1)
Net asset value, beginning of period ...................     $     7.27            $     6.76           $     7.14
                                                             ----------            ----------           ----------
Income from investment operations:
  Net investment income ................................          (0.06)                (0.11)               (0.04)
  Net gains or losses on securities
    (both realized and unrealized) .....................          (1.97)                 1.06                (0.25)
  Net gains or losses on foreign currency
    transactions (both realized and unrealized)(2) .....          (0.15)                (0.44)               (0.09)
                                                             ----------            ----------           ----------
Total from investment operations .......................          (2.18)                 0.51                (0.38)
                                                             ----------            ----------           ----------
Less Distributions:
  Distributions ........................................             --                    --                   --
                                                             ----------            ----------           ----------
Total distributions ....................................             --                    --                   --
                                                             ----------            ----------           ----------
Net asset value, end of period .........................     $     5.09            $     7.27           $     6.76
                                                             ==========            ==========           ==========
Total return ...........................................         (29.99)%                7.54%               (5.32)%

Ratios/Supplemental Data:
Net assets, end of period (in thousands) ...............     $   13,667            $   31,259           $   13,664
Ratio of expenses to average net assets ................           2.99%                 3.04%                3.00%+
Ratio of net income to average net assets ..............          (0.89%)               (1.33)%              (1.47)%+
Portfolio turnover rate ................................          94.09%                84.09%               12.24%
Without expense reimbursement and/or
  management fee waiver:(3)
  Ratios:
  Expenses to average net assets .......................                                                      3.80%+
  Net investment income to average net assets ..........                                                     (2.27)%+
</TABLE>

- ----------
See footnotes on page 40.
    



                                       36
<PAGE>


GLOBAL GROWTH OPPORTUNITIES FUND

<TABLE>
<CAPTION>
                                                                  CLASS A                            CLASS B
                                                     ---------------------------------    -----------------------------
                                                         Year ended                         Year ended
                                                         October 31,         11/1/95**      October 31,        4/22/96*
                                                     -------------------        to        --------------          to
                                                       1998       1997       10/31/96       1998      1997     10/31/96
                                                     -------    --------     --------     -------    -------   --------
<S>                                                  <C>        <C>          <C>          <C>        <C>        <C>
   
Per Share Data:(1)
Net asset value, beginning of period .............   $  9.20    $   8.08     $   7.14     $  9.06    $  8.02    $ 8.04
                                                     -------    --------     --------     -------    -------    ------
Income from investment operations:
  Net investment income ..........................     (0.05)      (0.05)       (0.03)      (0.12)     (0.12)    (0.04)
  Net gains or losses on securities
    (both realized and unrealized) ...............      0.81        1.47         1.12        0.80       1.46      0.06
  Net gains or losses on foreign currency
    transactions (both realized and unrealized)(2)      0.08       (0.30)       (0.15)       0.08      (0.30)    (0.04)
                                                     -------    --------     --------     -------    -------    ------
Total from investment operations .................      0.84        1.12         0.94        0.76       1.04     (0.02)
                                                     -------    --------     --------     -------    -------    ------
Less distributions:
  Distributions (from capital gains) .............     (0.42)         --           --       (0.42)        --        --
                                                     -------    --------     --------     -------    -------    ------
Total distributions ..............................     (0.42)         --           --       (0.42)        --        --
                                                     -------    --------     --------     -------    -------    ------
Net asset value, end of period ...................   $  9.62    $   9.20     $   8.08     $  9.40    $  9.06    $ 8.02
                                                     =======    ========     ========     =======    =======    ======
Total return .....................................      9.52%      13.86%       13.17%       8.76%     12.97%    (0.25)%

Ratios/Supplemental Data:
Net assets, end of period (in thousands) .........   $97,947    $109,060     $107,509     $21,930    $19,311    $9,257
Ratio of expenses to average net assets ..........      1.68%       1.69%        1.91%       2.44%      2.45%     2.53%+
Ratio of net income to average net assets ........     (0.48)%     (0.59)%      (0.53)%     (1.24)%    (1.35)%   (1.13)%+
Portfolio turnover rate ..........................     45.43%      79.32%       31.44%      45.43%     79.32%    31.44%++
    

<CAPTION>
                                                                                      CLASS D
                                                                ----------------------------------------------------
                                                                          Year ended
                                                                          October 31,                      11/1/95*
                                                                -------------------------------               to
                                                                   1998                 1997               10/31/96
                                                                ----------           ----------           ----------
<S>                                                             <C>                  <C>                  <C>
   
Per Share Data:(1)
Net asset value, beginning of period .....................      $     9.06           $     8.02           $     7.14
                                                                ----------           ----------           ----------
Income from investment operations:
  Net investment income ..................................           (0.12)               (0.12)               (0.09)
  Net gains or losses on securities
    (both realized and unrealized) .......................            0.80                 1.46                 1.12
  Net gains or losses on foreign currency
    transactions (both realized and unrealized)(2) .......            0.08                (0.30)               (0.15)
                                                                ----------           ----------           ----------
Total from investment operations .........................            0.76                 1.04                 0.88
                                                                ----------           ----------           ----------
Less Distributions:
  Distributions (from capital gains) .....................           (0.42)                  --                   --
                                                                ----------           ----------           ----------
Total distributions ......................................           (0.42)                  --                   --
                                                                ----------           ----------           ----------
Net asset value, end of period ...........................      $     9.40           $     9.06           $     8.02
                                                                ==========           ==========           ==========
Total return .............................................            8.76%               12.97%               12.33%

Ratios/Supplemental Data:
Net assets, end of period (in thousands) .................      $   64,443           $   64,300           $   53,540
Ratio of expenses to average net assets ..................            2.44%                2.45%                2.67%
Ratio of net income to average net assets ................           (1.24)%              (1.35)%              (1.25)%
Portfolio turnover rate ..................................           45.43%               79.32%               31.44%
</TABLE>

- ----------
See footnotes on page 40.
    


                                       37
<PAGE>


GLOBAL SMALLER COMPANIES FUND

<TABLE>
<CAPTION>
                                                          CLASS A                                            CLASS B
                                   ---------------------------------------------------------    ---------------------------------
                                                                                                     Year ended
                                                         Year ended October 31,                      October 31,         4/22/96*
                                   ---------------------------------------------------------    ---------------------       to
                                     1998         1997        1996        1995        1994        1998         1997      10/31/96
                                   --------     --------    --------    --------     -------    --------     --------    --------
<S>                                <C>          <C>         <C>         <C>          <C>        <C>          <C>         <C>
   
Per Share Data:(1)
Net asset value,
  beginning of period ..........   $  15.62     $  15.14    $  13.90    $  11.93     $  9.98    $  15.04     $  14.72    $  14.44
                                   --------     --------    --------    --------     -------    --------     --------    --------
Income from investment
  operations:
  Net investment income ........      (0.07)          --          --       (0.02)      (0.08)      (0.18)       (0.11)      (0.06)
  Net gains or losses on
    securities (both
    realized and unrealized) ...      (0.85)        1.61        2.38        2.24        1.57       (0.81)        1.56        0.33
  Net gains or losses on
    foreign currency
    transactions (both
    realized and unrealized)(2)        0.04        (0.40)      (0.18)       0.08        0.52        0.04        (0.40)       0.01
                                   --------     --------    --------    --------     -------    --------     --------    --------
Total from investment operations      (0.88)        1.21        2.20        2.30        2.01       (0.95)        1.05        0.28
                                   --------     --------    --------    --------     -------    --------     --------    --------
Less distributions:
  Distributions (from
    capital gains) .............      (0.63)       (0.73)      (0.96)      (0.33)      (0.06)      (0.63)       (0.73)         --
                                   --------     --------    --------    --------     -------    --------     --------    --------
Total distributions ............      (0.63)       (0.73)      (0.96)      (0.33)      (0.06)      (0.63)       (0.73)         --
                                   --------     --------    --------    --------     -------    --------     --------    --------
Net asset value, end of period .   $  14.11     $  15.62    $  15.14    $  13.90     $ 11.93    $  13.46     $  15.04    $  14.72
                                   ========     ========    ========    ========     =======    ========     ========    ========
Total return ...................      (5.82)%       8.28%      16.95%      20.10%      20.28%      (6.54)%       7.39%       1.94%

Ratios/Supplemental Data:
Net assets, end of period
  (in thousands) ...............   $374,890     $434,397    $350,359    $102,479     $46,269    $222,496     $247,600    $103,968
Ratio of expenses to
  average net assets ...........       1.65%        1.67%       1.75%       1.83%       1.92%       2.41%        2.43%       2.54%+
Ratio of net income to
  average net assets ...........      (0.45)%       0.02%       0.01%      (0.20)%     (0.77)%     (1.21)%      (0.74)%     (0.80)%+
Portfolio turnover rate ........      50.81%       57.24%      45.38%      63.05%      62.47%      50.81%       57.24%      45.38%++
    

<CAPTION>
                                                                             CLASS D
                                                 -----------------------------------------------------------------
                                                                      Year ended October 31,
                                                 -----------------------------------------------------------------
                                                   1998           1997           1996          1995         1994
                                                 --------       --------       --------       -------      -------
<S>                                              <C>            <C>            <C>            <C>          <C>
   
Per Share Data:(1)
Net asset value,
  beginning of period ......................     $  15.05       $  14.72       $  13.63       $ 11.80      $  9.94
                                                 --------       --------       --------       -------      -------
Income from investment operations:
  Net investment income ....................        (0.18)         (0.11)         (0.11)        (0.12)       (0.16)
  Net gains or losses on securities
    (both realized and unrealized) .........        (0.81)          1.57           2.34          2.20         1.57
  Net gains or losses on foreign
    currency transactions (both
    realized and unrealized)(2) ............         0.04          (0.40)         (0.18)         0.08         0.51
                                                 --------       --------       --------       -------      -------
Total from investment operations ...........        (0.95)          1.06           2.05          2.16         1.92
                                                 --------       --------       --------       -------      -------
Less Distributions:
  Distributions (from capital gains) .......        (0.63)         (0.73)         (0.96)        (0.33)       (0.06)
                                                 --------       --------       --------       -------      -------
Total distributions ........................        (0.63)         (0.73)         (0.96)        (0.33)       (0.06)
                                                 --------       --------       --------       -------      -------
Net asset value, end of period .............     $  13.47       $  15.05       $  14.72       $ 13.63      $ 11.80
                                                 ========       ========       ========       =======      =======
Total return ...............................        (6.53)%         7.47%         16.14%        19.11%       19.45%

Ratios/Supplemental Data:
Net assets, end of period
  (in thousands) ...........................     $272,992       $370,625       $285,477       $85,548      $38,317
Ratio of expenses to
  average net assets .......................         2.41%          2.43%          2.51%         2.61%        2.70%
Ratio of net income to
  average net assets .......................        (1.21)%        (0.74)%        (0.75)%       (0.97)%      (1.53)%
Portfolio turnover rate ....................        50.81%         57.24%         45.38%        63.05%       62.47%
</TABLE>

- ----------
See footnotes on page 40.
    



                                       38
<PAGE>


GLOBAL TECHNOLOGY FUND

<TABLE>
<CAPTION>
                                                                CLASS A                                        CLASS B
                                       ---------------------------------------------------------    -----------------------------
                                                                                                        Year ended
                                                       Year ended October 31,          5/23/94**        October 31,      4/22/96*
                                       ---------------------------------------------      to        ------------------      to
                                         1998         1997        1996        1995     10/31/94       1998      1997     10/31/96
                                       --------     --------    --------    --------   --------     -------    -------   --------
<S>                                    <C>          <C>         <C>         <C>         <C>         <C>        <C>        <C>
   
Per Share Data:(1)
Net asset value,
  beginning of period ..............   $  15.14     $  11.31    $  13.05    $   8.37    $  7.14     $ 14.73    $ 11.09    $ 11.47
                                       --------     --------    --------    --------    -------     -------    -------    -------
Income from investment operations:
  Net investment income ............      (0.14)       (0.16)      (0.08)      (0.10)     (0.01)      (0.23)     (0.26)     (0.08)
  Net gains or losses on securities
    (both realized and unrealized) .       0.01         4.06       (0.92)       4.90       1.08        0.01       3.97      (0.39)
  Net gains or losses on foreign
    currency transactions (both
    realized and unrealized)(2) ....       0.06        (0.07)       0.05       (0.05)      0.16        0.06      (0.07)      0.09
                                       --------     --------    --------    --------    -------     -------    -------    -------
Total from investment operations ...      (0.07)        3.83       (0.95)       4.75       1.23       (0.16)      3.64      (0.38)
                                       --------     --------    --------    --------    -------     -------    -------    -------
Less distributions:
  Dividends (from net income) ......         --           --       (0.02)         --         --          --         --         --
  Distributions (from capital gains)      (2.59)          --       (0.77)      (0.07)        --       (2.59)        --         --
                                       --------     --------    --------    --------    -------     -------    -------    -------
Total distributions ................      (2.59)          --       (0.79)      (0.07)        --       (2.59)        --         --
                                       --------     --------    --------    --------    -------     -------    -------    -------
Net asset value, end of period .....   $  12.48     $  15.14    $  11.31    $  13.05    $  8.37     $ 11.98    $ 14.73    $ 11.09
                                       ========     ========    ========    ========    =======     =======    =======    =======
Total return .......................      (0.79)%      33.86%      (7.33)%     57.31%     17.23%      (1.55)%    32.82%     (3.31)%

Ratios/Supplemental Data:
Net assets, end of period
  (in thousands) ...................   $475,951     $583,257    $499,858    $447,732    $50,719     $58,575    $53,046    $18,840
Ratio of expenses to
  average net assets ...............       1.67%        1.67%       1.75%       1.91%      2.00%+      2.43%      2.42%      2.51%+
Ratio of net income to
  average net assets ...............      (1.04)%      (1.10)%     (0.74)%     (0.89)%    (0.45)%+    (1.80)%    (1.85)%    (1.40)%+
Portfolio turnover rate ............      87.55%       94.06%      73.00%      87.42      29.20%      87.55%     94.06%     73.00%++
Without expense reimbursement
  and/or management fee waiver:(3)
  Ratios:
  Expenses to average net assets ...                                                       2.18%+
  Net investment income to
    average net assets .............                                                      (0.63)%+
</TABLE>

- ----------
See footnotes on page 40.
    



                                       39
<PAGE>


GLOBAL TECHNOLOGY FUND

<TABLE>
<CAPTION>
                                                                                  CLASS D
                                                   ----------------------------------------------------------------
                                                                   Year ended October 31,                  5/23/94*
                                                   ---------------------------------------------------        to
                                                     1998           1997          1996          1995       10/31/94
                                                   --------       --------      --------      --------     --------
<S>                                                <C>            <C>           <C>           <C>           <C>
   
Per Share Data:(1)
Net asset value,
  beginning of period .........................    $  14.73       $  11.09      $  12.89      $   8.34      $ 7.14
                                                   --------       --------      --------      --------      ------
Income from investment operations:
  Net investment income .......................       (0.23)         (0.26)        (0.17)        (0.18)      (0.04)
  Net gains or losses on securities
    (both realized and unrealized) ............       (0.01)          3.97         (0.91)         4.85        1.08
  Net gains or losses on foreign
    currency transactions (both
    realized and unrealized)(2) ...............        0.06          (0.07)         0.05         (0.05)       0.16
                                                   --------       --------      --------      --------      ------
Total from investment operations ..............       (0.18)          3.64         (1.03)         4.62        1.20
                                                   --------       --------      --------      --------      ------
Less Distributions:
  Distributions (from capital gains) ..........       (2.59)            --         (0.77)        (0.07)         --
                                                   --------       --------      --------      --------      ------
Total distributions ...........................       (2.59)            --         (0.77)        (0.07)         --
                                                   --------       --------      --------      --------      ------
Net asset value, end of period ................    $  11.96       $  14.73      $  11.09      $  12.89      $ 8.34
                                                   ========       ========      ========      ========      ======
Total return ..................................       (1.70)%        32.82%        (8.07)%       55.95%      16.81%

Ratios/Supplemental Data:
Net assets, end of period
  (in thousands) ..............................    $184,032       $232,882      $197,412      $161,622      $6,499
Ratio of expenses to
  average net assets ..........................        2.43%          2.42%         2.52%         2.66%       2.75%+
Ratio of net income to
  average net assets ..........................       (1.80)%        (1.85)%       (1.50)%       (1.63)%     (1.22)%+
Portfolio turnover rate .......................       87.55%         94.06%        73.00%        87.42%      29.20%
Without expense reimbursement
  and/or management fee waiver:(3)
  Ratios:
  Expenses to average net assets ..............                                                               3.36%+
  Net investment income to
    average net assets ........................                                                              (1.83)%+
</TABLE>

- ---------
(1)  Per share amounts are calculated based on average shares outstanding.
(2)  The Fund separates the portion of its investment operations that resulted
     from changes in foreign exchange rates from the portion that resulted from
     changes in the market price of securities held and/or sold by the Fund.
(3)  Seligman and HIML, at their discretion, waived a portion of their fees and,
     in some cases, HIML reimbursed certain expenses for the periods presented.
*    Commencement of offering of shares.
+    Annualized.
++   For the year ended October 31, 1996.
    


                                       40
<PAGE>


How to Contact Us

The Fund                     Write:        Corporate Communications/
                                           Investor Relations Department
                                           J. & W. Seligman & Co. Incorporated
                                           100 Park Avenue, New York, NY 10017

                             Phone:        Toll-Free (800) 221-7844 in the US or
                                           (212) 850-1864 outside the US

                             Website:      http://www.seligman.com



Your Regular
(Non-Retirement)
Account                      Write:        Shareholder Services Department
                                           Seligman Data Corp.
                                           100 Park Avenue, New York, NY 10017

                             Phone:        Toll-Free (800) 221-2450 in the US or
                                           (212) 682-7600 outside the US

                             Website:      http://www.seligman.com



Your Retirement
Account                      Write:        Retirement Plan Services
                                           Seligman Data Corp.
                                           100 Park Avenue, New York, NY 10017

                             Phone:        Toll-Free (800) 445-1777

- --------------------------------------------------------------------------------
24-hour telephone access is available by dialing (800) 622-4597 on a touchtone
telephone. You will have instant access to price, yield, account balance, most
recent transaction, and other information.
- --------------------------------------------------------------------------------


                                       41

<PAGE>

For More Information





- --------------------------------------------------------------------------------

The  following  information  is  available  without  charge upon  request:  Call
toll-free (800) 221-2450 in the US or (212) 682-7600 outside the US.

Statement of Additional  Information (SAI) contains additional information about
the Funds. It is on file with the Securities and Exchange  Commission  (SEC) and
is incorporated by reference into (is legally part of) this prospectus.

Annual/Semi-Annual  Reports  contain  additional  information  about each Fund's
investments.  In the Funds'  annual  report,  you will find a discussion  of the
market  conditions and investment  strategies that  significantly  affected each
Fund's performance during its last fiscal year.

- --------------------------------------------------------------------------------










                            SELIGMAN ADVISORS, INC.
                                AN AFFILIATE OF

                                     [LOGO]

                              J.& W. SELIGMAN & CO.
                                  INCORPORATED
                                ESTABLISHED 1864
                       100 PARK AVENUE, NEW YORK, NY 10017


Information about the Funds,  including the SAI, can be viewed and copied at the
SEC's  Public  Reference  Room in  Washington,  DC.  For  information  about the
operation  of  the  Public  Reference  Room,  call  (800)  SEC-0330.   The  SAI,
Annual/Semi-Annual  reports  and  other  information  about  the  Funds are also
available on the SEC's Internet site: http://www.sec.gov.

Copies of this  information may be obtained,  upon payment of a duplicating fee,
by writing: Public Reference Section of the SEC, Washington, DC 20549-6009.

SEC FILE NUMBER:  811-6485





<PAGE>


                   SELIGMAN HENDERSON GLOBAL FUND SERIES, INC.

                      Seligman Henderson International Fund
                 Seligman Henderson Emerging Markets Growth Fund
               Seligman Henderson Global Growth Opportunities Fund
                Seligman Henderson Global Smaller Companies Fund
                    Seligman Henderson Global Technology Fund

   
                       Statement of Additional Information
                                  March 1, 1999
    


                                 100 Park Avenue
                            New York, New York 10017
                                 (212) 850-1864
                       Toll Free Telephone: (800) 221-2450
      For Retirement Plan Information - Toll-Free Telephone: (800) 445-1777


This Statement of Additional  Information (SAI) expands upon and supplements the
information  contained in the current  Prospectus of Seligman  Henderson  Global
Fund  Series,  Inc.,  dated March 1, 1999.  This SAI,  although  not in itself a
prospectus, is incorporated by reference into the Prospectus in its entirety. It
should be read in  conjunction  with the  Prospectus,  which  you may  obtain by
writing or calling the Funds at the above address or telephone numbers.

The financial statements and notes included in the Funds' Annual Report, and the
Independent Auditors' Report thereon, are incorporated herein by reference.  The
Annual  Report will be furnished to you without  charge if you request a copy of
this SAI.


   
                                Table of Contents

Fund History ...............................................................  2
Description of the Funds and Their Investments and Risks ...................  2
Management of the Funds ....................................................  10
Control Persons and Principal Holders of Securities.........................  16
Investment Advisory and Other Services .....................................  16
Brokerage Allocation and Other Practices ...................................  24
Capital Stock and Other Securities .........................................  25
Purchase, Redemption, and Pricing of Shares ................................  25
Taxation of the Funds ......................................................  30
Underwriters................................................................  33
Calculation of Performance Data ............................................  35
Financial Statements........................................................  40
General Information.........................................................  40
Appendix A .................................................................  42
Appendix B..................................................................  45
Appendix C..................................................................  47
    


<PAGE>

                                  Fund History

Seligman  Henderson  Global Fund Series,  Inc. was  incorporated  in Maryland on
November 22, 1991 under the name  Seligman  International  Fund Series,  Inc. It
changed its name to its present name on May 25, 1993.

            Description of the Funds and Their Investments and Risks

Classification

Seligman  Henderson  Global  Fund  Series,  Inc.  is  a  diversified,   open-end
management  investment  company,  or mutual fund.  It consists of five  separate
series:

Seligman Henderson International Fund (International Fund)
Seligman Henderson Emerging Markets Growth Fund (Emerging Markets Growth Fund)
Seligman Henderson Global Growth Opportunities Fund (Global Growth Opportunities
Fund)
Seligman Henderson Global Smaller Companies Fund (Global Smaller Companies Fund)
Seligman Henderson Global Technology Fund (Global Technology Fund)

Investment Strategies and Risks

The following information regarding the Funds' investments and risks supplements
the information contained in the Prospectus.

General.  In allocating each Fund's  investments  among  geographic  regions and
individual  countries,  the investment manager will consider such factors as the
relative  economic  growth  potential of the various  economies  and  securities
markets;  expected  levels  of  inflation;   financial,   social  and  political
conditions  influencing investment  opportunities;  and the outlook for currency
relationships.

Each  Fund  may  invest  in all  types  of  securities,  many of  which  will be
denominated  in  currencies  other than the US dollar.  Each Fund will  normally
invest its  assets in equity  securities,  including  common  stock,  securities
convertible  into or  exchangeable  for common  stock,  depositary  receipts and
warrants. A Fund may, however, invest up to 25% of its assets in preferred stock
and debt  securities.  Dividends or interest income are considered only when the
investment manager believes that such income will favorably influence the market
value of a security in light of each Fund's  objective of capital  appreciation.
Equity  securities  in which each Fund  invests may be listed on a US or foreign
stock exchange or traded in US or foreign over-the-counter markets.

Debt  securities in which each Fund may invest are not required to be rated by a
recognized rating agency.  As a matter of policy,  each Fund, with the exception
of the Emerging Markets Growth Fund, will invest only in "investment grade" debt
securities or, in the case of unrated  securities,  debt securities that are, in
the opinion of the  investment  manager,  of equivalent  quality to  "investment
grade" securities.  "Investment grade" debt securities are rated within the four
highest  rating  categories  as determined by Moody's  Investors  Service,  Inc.
(Moody's) or Standard & Poor's Rating Service (S&P). Securities rated within the
highest of the four investment grade categories (i.e., Aaa by Moody's and AAA by
S&P) are judged to be of the best quality and carry the smallest degree of risk.
For capital  appreciation,  the Emerging Markets Growth Fund may invest up to 5%
of its assets in governmental and corporate debt securities that, at the time of
purchase by the Fund,  are rated Baa or lower by Moody's and BBB or lower by S&P
or, if unrated,  deemed by the investment  manager to be of comparable  quality.
The Emerging  Markets Growth Fund will not invest in debt securities rated lower
than C by Moody's or C by S&P or, if unrated,  deemed by the investment  manager
to be of comparable quality. Securities rated Baa/BBB or lower lack high quality
investment  characteristics  and  may  also  have  speculative  characteristics.
(Appendix A to the Statement of Additional Information contains a description of
these rating categories.) Debt securities are interest-rate  sensitive, so their
value tends to decrease  when  interest  rates rise and increase  when  interest
rates fall.


                                       2

<PAGE>

Each Fund may invest in securities  represented by European  Depositary Receipts
(EDRs),  American  Depositary  Receipts  (ADRs) and Global  Depositary  Receipts
(GDRs) (collectively,  Depositary Receipts).  ADRs are receipts generally issued
by a domestic bank or trust company that  represent the deposit of a security of
a foreign issuer.  ADRs may be publicly traded on exchanges or  over-the-counter
in the United  States  and are quoted and  settled in US dollars at a price that
generally  reflects the US dollar  equivalent  of the home country  share price.
EDRs and GDRs are receipts  similar to ADRs and are typically  issued by foreign
banks or trust companies and traded in Europe. Depositary Receipts may be issued
as sponsored or unsponsored programs. In sponsored programs, the issuer has made
arrangements to have its securities traded in the form of a Depositary  Receipt.
In unsponsored programs, the issuer may not be directly involved in the creation
of the program.  Although regulatory  requirements with respect to sponsored and
unsponsored   programs  are  generally  similar,   the  issuers  of  unsponsored
Depositary  Receipts are not obligated to disclose  material  information in the
United  States  and,  therefore,  the  import  of  such  information  may not be
reflected  in the market  value of such  securities.  For  purposes  of a Fund's
investment  policies,  an investment in Depositary Receipts will be deemed to be
an investment in the underlying security.

By investing  in foreign  securities,  a Fund will attempt to take  advantage of
differences  among economic trends and the performance of securities  markets in
various  countries.  To date, the market values of securities of issuers located
in different countries have moved relatively independently of each other. During
certain periods, the return on equity investments in some countries has exceeded
the return on similar  investments in the United States.  The investment manager
believes  that, in comparison  with  investment  companies  investing  solely in
domestic securities,  it may be possible to obtain significant appreciation from
a portfolio of foreign  investments  and  securities  from various  markets that
offer different investment  opportunities and are affected by different economic
trends.  International and global  diversification  reduces the effect events in
any one country will have on a Fund's entire investment portfolio.  Of course, a
decline in the value of a Fund's investments in one country may offset potential
gains from investments in another country.

Foreign  Investment  Risk Factors.  Investments in securities of foreign issuers
may involve risks that are not associated with domestic  investments,  and there
can be no assurance  that a Fund's  foreign  investments  will present less risk
than a  portfolio  of domestic  securities.  Foreign  issuers  may lack  uniform
accounting,   auditing  and  financial   reporting   standards,   practices  and
requirements,  and there is generally less publicly available  information about
foreign  issuers  than there is about US issuers.  Governmental  regulation  and
supervision of foreign stock exchanges, brokers and listed companies may be less
pervasive  than is customary in the United  States.  Securities  of some foreign
issuers are less liquid, and their prices are more volatile,  than securities of
comparable  domestic  issuers.   Foreign  securities  settlements  may  in  some
instances be subject to delays and related  administrative  uncertainties  which
could result in temporary  periods when assets of a Fund are  uninvested  and no
return  is earned  thereon  and may  involve  a risk of loss to a Fund.  Foreign
securities  markets may have  substantially  less volume than US markets and far
fewer traded issues. Fixed brokerage commissions on foreign securities exchanges
are  generally  higher  than in the  United  States and  transaction  costs with
respect to smaller  capitalization  companies may be higher than those of larger
capitalization  companies.  Income from foreign  securities  may be reduced by a
withholding tax at the source or other foreign taxes.  In some countries,  there
may also be the possibility of expropriation or confiscatory  taxation (in which
a Fund could lose its entire investment in a certain market); limitations on the
removal of moneys or other assets of a Fund;  political or social instability or
revolution;  or diplomatic  developments that could affect  investments in those
countries.  In addition, it may be difficult to obtain and enforce a judgment in
a court outside the United States.

Each Fund may invest in sovereign  debt. The actions of  governments  concerning
their  respective  economies could have an important  effect on their ability or
willingness to service their sovereign debt. Such actions could have significant
effects on market  conditions  and on the prices of securities  and  instruments
held by a Fund,  including the  securities and  instruments  of foreign  private
issuers.  Factors  which may  influence  the ability or  willingness  of foreign
sovereigns to service debt include,  but are not limited to: the availability of
sufficient  foreign exchange on the date of payment is due; the relative size of
its debt  service  burden to the  economy as a whole;  its  balance of  payments
(including  export   performance)  and  cash  flow  situation;   its  access  to
international  credits and  investments;  fluctuations  in interest and currency
rates and reserves;  and its  government's  policies  towards the  International
Monetary Fund,  the World Bank and other  international  


                                       3

<PAGE>

agencies.  If a foreign  sovereign  defaults  on all or a portion of its foreign
debt,  a Fund  may  have  limited  legal  recourse  against  the  issuer  and/or
guarantor.  In  some  cases,  remedies  must be  pursued  in the  courts  of the
defaulting party itself, and the ability of the holder of foreign sovereign debt
securities  to obtain  recourse may be subject to the  political  climate in the
prevailing country.

Foreign Currency Risk Factors. Investments in foreign securities will usually be
denominated  in foreign  currency,  and each Fund may be affected,  favorably or
unfavorably,  by the  relative  strength  of the US  dollar,  changes in foreign
currency and US dollar exchange rates, and exchange control regulations.  A Fund
may incur costs in connection with  conversions  between various  currencies.  A
Fund's  net asset  value per share  will be  affected  by  changes  in  currency
exchange rates.  Changes in foreign currency  exchange rates may also affect the
value of dividends and interest earned, gains and losses realized on the sale of
securities,  and net investment  income and gains,  if any, to be distributed to
shareholders  by a Fund.  The rate of  exchange  between the US dollar and other
currencies  is  determined  by the forces of supply  and  demand in the  foreign
exchange markets (which in turn are affected by interest rates,  trade flow, and
numerous  other  factors,  including,  in  some  countries,  local  governmental
intervention).

Emerging  Market  Investment  Risk Factors.  Some of the risks  described in the
preceding  paragraphs may be more severe for investments in emerging  countries.
By comparison  with the United States and other  developed  countries,  emerging
countries may have relatively  unstable  governments,  economies based on a less
diversified  industrial base and securities  markets that trade a smaller number
of  securities.  Companies in emerging  markets may  generally be smaller,  less
seasoned and more recently  organized  than many domestic  companies.  Prices of
securities  traded in the  securities  markets of emerging  countries tend to be
volatile.  Furthermore,  foreign  investors are subject to many  restrictions in
emerging  countries.   These  restrictions  may  require,  among  other  things,
governmental  approval  prior to making  investments or  repatriating  income or
capital;  or may  impose  limits  on the  amount or type of  securities  held by
foreigners or on the companies in which the foreigners may invest.

The  economies  of  individual   emerging  countries  may  differ  favorably  or
unfavorably  from the US economy in such  respects  as growth of gross  domestic
product,  rates  of  inflation,  currency  depreciation,  capital  reinvestment,
resource self-sufficiency, and balance of payment position and may be based on a
substantially  less  diversified  industrial  base.  Further,  the  economies of
emerging countries generally are heavily dependent upon international trade and,
accordingly,  have been,  and may  continue to be,  adversely  affected by trade
barriers,  exchange controls,  managed  adjustments in relative currency values,
and other  protectionist  measures  imposed or negotiated by the countries  with
which they  trade.  These  economies  also have been,  and may  continue  to be,
adversely  affected  by economic  conditions  in the  countries  with which they
trade.

Smaller Company  Investment Risk Factors.  The investment  manager believes that
smaller  companies  generally have greater  earnings and sales growth  potential
than  larger  companies.  However,  investments  in such  companies  may involve
greater  risks,  such as limited  product  lines,  limited  markets  and limited
financial or managerial  resources.  Less  frequently  traded  securities may be
subject to more abrupt price movements than securities of larger companies.

Technology  Investment Risk Factors.  The value of Global Technology Fund shares
may be  susceptible  to  factors  affecting  technology  and  technology-related
industries  and to greater risk and market  fluctuation  than an investment in a
fund that  invests in a broader  range of  portfolio  securities.  As such,  the
Global  Technology  Fund is not an appropriate  investment for  individuals  who
require safety of principal or stable income from their investments.  Technology
and  technology-related  industries  may  be  subject  to  greater  governmental
regulation than many other industries in certain  countries,  as well as changes
in  governmental  policies  and the need  for  regulatory  approvals  may have a
material adverse effect on these industries.  Additionally,  these companies may
be subject to risks of developing technologies, competitive pressures, and other
factors  and  are  dependent  upon  consumer  and  business  acceptance  as  new
technologies evolve.  Securities of smaller, less experienced companies also may
involve  greater  risks,  such as limited  product  lines,  limited  markets and
limited financial or managerial resources, and trading in such securities may be
subject to more abrupt price  movements than trading in the securities of larger
companies.


                                       4

<PAGE>

Forward  Foreign  Currency  Exchange  Contracts.  The  investment  manager  will
consider changes in exchange rates in making investment decisions. As one way of
managing  exchange rate risk, each Fund may enter into forward currency exchange
contracts.  A forward  foreign  currency  exchange  contract is an  agreement to
purchase or sell a specific  currency at a future date and at a price set at the
time the  contract  is  entered  into.  A Fund will  usually  enter  into  these
contracts to fix the US dollar value of a security  that it has agreed to buy or
sell for the period between the date the trade was entered into and the date the
security is delivered and paid for. A Fund may also use these contracts to hedge
the US dollar  value of  securities  it already  owns. A Fund may be required to
cover certain forward currency  contract  positions by establishing a segregated
account with its  custodian  that will contain  only liquid  assets,  such as US
Government securities or other liquid high-grade debt obligations.

A Fund may enter into a forward  contract to sell or buy the amount of a foreign
currency it believes  may  experience a  substantial  movement  against  another
currency  (including the US dollar). In this case the contract would approximate
the value of some or all of a Fund's  portfolio  securities  denominated in such
foreign  currency.  If appropriate,  a Fund may hedge all or part of its foreign
currency  exposure through the use of a basket of currencies or a proxy currency
where such  currencies  or proxy  currency act as an  effective  proxy for other
currencies.  In these  circumstances,  a Fund may enter into a forward  contract
where the amount of the  foreign  currency  to be sold  exceeds the value of the
securities  denominated  in  such  currency.  The  use of  this  basket  hedging
technique  may be more  efficient  and  economical  than  entering into separate
forward  contracts for each currency held in a Fund. The precise matching of the
forward  contract  amounts  and the value of the  securities  involved  will not
generally  be  possible  since the future  value of such  securities  in foreign
currencies will change as a consequence of market movement in the value of those
securities between the date the forward contract is entered into and the date it
matures.  The  projection of short-term  currency  market  movement is extremely
difficult,  and the  successful  execution of a short-term  hedging  strategy is
highly uncertain.  Under certain circumstances,  a Fund may commit a substantial
portion  or  the  entire  value  of its  assets  to the  consummation  of  these
contracts.  The  investment  manager  will  consider  the  effect a  substantial
commitment  of its assets to  forward  contracts  would  have on the  investment
program of each Fund and its ability to purchase additional securities.

Except as set forth above and immediately below, a Fund will also not enter into
such forward  contracts or maintain a net exposure to such  contracts  where the
consummation  of the  contracts  would  oblige a Fund to  deliver  an  amount of
foreign currency in excess of the value of such Fund's  portfolio  securities or
other assets  denominated  in that  currency.  A Fund,  in order to avoid excess
transactions and transaction  costs, may nonetheless  maintain a net exposure to
forward  contracts in excess of the value of its  portfolio  securities or other
assets  denominated in that currency  provided the excess amount is "covered" by
cash or liquid, high-grade debt securities,  denominated in any currency, having
a value at least equal at all times to the amount of such  excess.  Under normal
circumstances,  consideration  of the  prospect for  currency  parities  will be
incorporated  into the  longer-term  investment  decisions  made with  regard to
overall  diversification  strategies.  However,  the investment manager believes
that it is  important  to have  the  flexibility  to  enter  into  such  forward
contracts when it determines that the best interests of a Fund will be served.

At the  maturity of a forward  contract,  a Fund may either  sell the  portfolio
security  and make  delivery  of the  foreign  currency,  or it may  retain  the
security  and  terminate  its  contractual  obligation  to deliver  the  foreign
currency by purchasing an "offsetting"  contract  obligating it to purchase,  on
the same maturity date, the same amount of the foreign currency.

As indicated  above,  it is impossible  to forecast with absolute  precision the
market value of portfolio  securities at the expiration of the forward contract.
Accordingly,  it may be  necessary  for a Fund to  purchase  additional  foreign
currency  on the spot  market  (and bear the  expense of such  purchase)  if the
market  value of the security is less than the amount of foreign  currency  such
Fund is  obligated to deliver and if a decision is made to sell the security and
make delivery of the foreign currency.  Conversely,  it may be necessary to sell
on the spot market some of the foreign  currency  received  upon the sale of the
portfolio  security if its market value exceeds the amount of foreign currency a
Fund is obligated to deliver.  However,  a Fund may use liquid,  high-grade debt
securities,  denominated in any currency, to cover the amount by which the value
of a forward contract exceeds the value of the securities to which it relates.


                                       5

<PAGE>

If  a  Fund  retains  the  portfolio  security  and  engages  in  an  offsetting
transaction,  such Fund will incur a gain or a loss (as described  below) to the
extent  that there has been  movement  in  forward  contract  prices.  If a Fund
engages  in an  offsetting  transaction,  it may  subsequently  enter into a new
forward  contract to sell the foreign  currency.  Should  forward prices decline
during the period between a Fund's entering into a forward contract for the sale
of a foreign currency and the date it enters into an offsetting contract for the
purchase of the foreign  currency,  such Fund will  realize a gain to the extent
the  price of the  currency  it has  agreed  to sell  exceeds  the  price of the
currency it has agreed to purchase.  Should forward prices increase, a Fund will
suffer a loss to the extent the price of the  currency it has agreed to purchase
exceeds the price of the currency it has agreed to sell.

The Fund's dealing in forward foreign currency exchange contracts will generally
be limited to the transactions  described above. However, each Fund reserves the
right to enter into forward foreign  currency  contracts for different  purposes
and under different  circumstances.  Of course,  a Fund is not required to enter
into  forward   contracts  with  regard  to  its  foreign   currency-denominated
securities  and will  not do so  unless  deemed  appropriate  by the  investment
manager.

Although  a Fund will seek to benefit by using  forward  contracts,  anticipated
currency  movements may not be  accurately  predicted and the Fund may therefore
incur a gain or loss on a forward contract. A forward contract may help reduce a
Fund's losses on securities  denominated  in foreign  currency,  but it may also
reduce  the  potential  gain  on the  securities  depending  on  changes  in the
currency's  value relative to the US dollar or other  currencies.  Additionally,
this  method of hedging  against a decline  in the value of a currency  does not
eliminate  fluctuations in the underlying  prices of the  securities.  It simply
establishes a rate of exchange at a future date.

Investors should be aware of the costs of currency conversion.  Although foreign
exchange dealers do not charge a fee for conversion, they do realize a profit or
"spread" based on the difference between the prices at which they are buying and
selling various currencies.  Thus, a dealer may offer to sell a foreign currency
to a Fund at one rate,  while offering a lesser rate of exchange should the Fund
desire to resell that currency to the dealer.

Derivatives.  Each Fund may invest in financial  instruments  commonly  known as
"derivatives" only for hedging or investment purposes. A Fund will not invest in
derivatives  for  speculative   purposes,   which  means  where  the  derivative
investment  exposes  the Fund to undue  risk of loss,  such as where the risk of
loss is greater than the cost of the investment.

A derivative is generally  defined as an instrument whose value is derived from,
or based upon, some underlying  index,  reference rate (e.g.,  interest rates or
currency exchange rates),  security,  commodity, or other asset. A Fund will not
invest in a specific type of derivative  without prior  approval from the Funds'
Board  of  Directors  after  consideration  of,  among  other  things,  how  the
derivative  instrument  serves the Fund's  investment  objective,  and the risks
associated with the investment. The only types of derivatives in which each Fund
is  currently   permitted  to  invest  are  forward  foreign  currency  exchange
contracts, stock purchase rights and warrants, and put options.

Rights and  Warrants.  Each Fund may invest in common  stock rights and warrants
believed   by  the   investment   manager   to  provide   capital   appreciation
opportunities.  Common stock  rights and warrants  received as part of a unit or
attached to  securities  purchased  (i.e.,  not  separately  purchased)  are not
included in a Fund's investment restrictions regarding such securities.

A Fund may not invest in rights and warrants if, at the time of acquisition, the
investment  in rights  and  warrants  would  exceed 5% of the  Fund's net assets
(valued at the lower of cost or  market).  In  addition,  no more than 2% of net
assets  of a Fund may be  invested  in  warrants  not  listed on the New York or
American Stock Exchanges. For purposes of this restriction,  rights and warrants
acquired by the Fund in units or attached  to  securities  may be deemed to have
been purchased without cost.


                                       6

<PAGE>

   
Put Options.  Each Fund may purchase put options on portfolio  securities  in an
attempt  to  provide  a hedge  against  a  decrease  in the  market  price of an
underlying  security  held by the Fund.  A Fund will not  purchase  options  for
speculative purposes.
    

Purchasing a put option gives a Fund the right to sell, and obligates the writer
to buy, the  underlying  security at the  exercise  price at any time during the
option  period.  This hedge  protection  is provided  during the life of the put
option  since the Fund,  as holder of the put  option,  can sell the  underlying
security at the put exercise  price  regardless of any decline in the underlying
security's market price.

   
In order for a put option to be  profitable,  the market price of the underlying
security must decline sufficiently below the exercise price to cover the premium
and transaction  costs. By using put options in this manner,  a Fund will reduce
any profit it might  otherwise have realized in the  underlying  security by the
premium paid for the put option and by transaction costs.

Because  a  purchased  put  option  gives  the  purchaser  a  right  and  not an
obligation,  the  purchaser  is not  required  to exercise  the  option.  If the
underlying  position  incurs a gain,  a Fund  would  let the put  option  expire
resulting in a reduced  profit on the  underlying  security equal to the cost of
the put option.

When the Fund purchases an option,  it is required to pay a premium to the party
writing the option and a  commission  to the broker  selling the option.  If the
option is  exercised  by the Fund,  the premium and the  commission  paid may be
greater than the amount of the brokerage commission charged if the security were
to be purchased or sold  directly.  The cost of the put option is limited to the
premium plus  commission  paid.  The Fund's maximum  financial  exposure will be
limited to these costs.

A Fund may purchase both listed and  over-the-counter put options. The Fund will
be  exposed  to  the  risk  of  counterparty   nonperformance  in  the  case  of
over-the-counter put options.

A Fund's  ability  to  engage  in  option  transactions  may be  limited  by tax
considerations.
    

       

Other Investment  Companies.  Certain emerging  markets have  restrictions  that
preclude  or  limit  direct  foreign  investment  in  the  securities  of  their
companies. However, indirect foreign investment is permitted in certain emerging
markets  through  governmentally  authorized  investment  vehicles or companies,
including closed-end  investment  companies,  which may be acquired at prices in
excess of their net asset values. In accordance with the 1940 Act, each Fund may
invest up to 10% of its  assets in shares of other  investment  companies.  If a
Fund invests in other  investment  companies,  shareholders  would bear not only
their proportionate share of that Fund's expenses (including  operating expenses
and advisory  fees),  but also  similar  expenses of the  underlying  investment
companies.

Short Sales. Each Fund may sell securities short "against-the-box." A short sale
"against-the-box"  is a short  sale in which a Fund owns an equal  amount of the
securities sold short or securities  convertible  into or  exchangeable  without
payment of further consideration for securities of the same issuer as, and equal
in amount to, the securities sold short.

Repurchase  Agreements.  Each Fund may enter  into  repurchase  agreements  with
commercial  banks and  broker/dealers  as a short-term cash  management  tool. A
repurchase  agreement is an agreement  under which a Fund  acquires a security ,
generally  a  US  Government  obligation,   subject  to  resale  at  a  mutually
agreed-upon  price and time.  The resale price  reflects an agreed upon interest
rate effective for the period of time a Fund holds the security and is unrelated
to the interest rate on the security.  A Fund's repurchase agreement will at all
times be fully collateralized.

   
Repurchase  agreements could involve certain risks in the event of bankruptcy or
other  default  by  the  seller,  including  possible  delays  and  expenses  in
liquidating  securities underlying the agreement,  a decline in the value of the
underlying  securities  and  a  loss  of  interest.  Repurchase  agreements  are
typically  entered  into for 
    

                                       7

<PAGE>

   
periods of one week or less. A Fund will not enter into repurchase agreements of
more  than one  week's  duration  if more  than 10% of its net  assets  would be
invested in such agreements and other illiquid securities.

Illiquid  Securities.  Each  Fund  may  invest  up to 15% of its net  assets  in
illiquid  securities,  including  restricted  securities  (i.e.,  securities not
readily  marketable  without  registration under the Securities Act of 1933 (the
"1933 Act")) and other  securities  that are not readily  marketable.  Each Fund
does  not  currently  expect  to  invest  more  than  5% of its  assets  in such
securities.  A Fund may purchase  restricted  securities that can be offered and
sold to "qualified  institutional  buyers" under Rule 144A of the 1933 Act, and,
the Funds' Board of Directors,  may determine,  when appropriate,  that specific
Rule 144A  securities  are  liquid  and not  subject  to the 15%  limitation  on
illiquid securities.  Should the Board of Directors make this determination,  it
will carefully monitor the security  (focusing on such factors,  among others as
trading  activity and  availability  of  information) to determine that the Rule
144A  security  continues  to be liquid.  It is not  possible  to  predict  with
assurance  exactly how the market for Rule 144A  securities will further evolve.
This  investment  practice  could  have the  effect of  increasing  the level of
illiquidity in a Fund, if and to the extent that qualified  institutional buyers
become for a time uninterested in purchasing Rule 144A securities.

Borrowing.  Each Fund may borrow money only from banks and only for temporary or
emergency  purposes  (but not for the  purchase of portfolio  securities)  in an
amount not in excess of 5% of each Fund's  total  assets  (except  the  Emerging
Markets  Fund,  where such  borrowings  will not exceed 10% of the Fund's  total
assets) and will be made at prevailing  interest rates.  Each Fund's  borrowings
are limited so that  immediately  after such  borrowing  the value of its assets
(including  borrowings)  less its liabilities  (not including  borrowings) is at
least three times the amount of the  borrowings.  Should a Fund, for any reason,
have  borrowings  that do not meet the above  test,  that Fund must  reduce  its
borrowings so as to meet the foregoing test within three  business  days.  Under
these circumstances, a Fund may have to liquidate portfolio securities at a time
when it is  disadvantageous  to do so. Gains made with additional funds borrowed
will generally  cause the net asset value of a Fund's shares to rise faster than
could be the case without borrowings.  Conversely, if investment results fail to
cover the cost of  borrowings,  the net  asset  value of a Fund  could  decrease
faster than if there had been no borrowings.

Lending of Portfolio  Securities.  Each Fund may lend  portfolio  securities  to
broker/dealers or other  institutions,  if the investment  manager believes such
loans will be  beneficial  to a Fund.  The borrower  must maintain with the Fund
cash or equivalent  collateral equal to at least 100% of the market value of the
securities  loaned.  During  the time  portfolio  securities  are on  loan,  the
borrower pays the Fund any dividend or interest paid on the securities. The Fund
may invest the collateral and earn  additional  income or receive an agreed upon
amount of interest income from the borrower. Loans made by a Fund will generally
be short-term. Loans are subject to termination at the option of the Fund or the
borrower.  The Fund may pay  reasonable  administrative  and  custodial  fees in
connection  with a loan and may pay a negotiated  portion of the interest earned
on the collateral to the borrower or placing broker.  The Fund does not have the
right to vote  securities on loan,  but would  terminate the loan and regain the
right to vote if it were  considered  important with respect to the  investment.
The Fund may lose  money if a  borrower  defaults  on its  obligation  to return
securities and the value of the collateral  held by the Fund is  insufficient to
replace the loaned securities. In addition, the Fund is responsible for any loss
that might result from its investment of the borrower's collateral.

Except as otherwise specifically noted above, a Fund's investment strategies are
not fundamental and the Funds, with the approval of the Board of Directors,  may
change such strategies without the vote of shareholders.
    

Fund Policies

Each Fund is subject to fundamental  policies that place restrictions on certain
types of  investments.  These  policies  cannot be  changed  except by vote of a
majority of the Fund's outstanding voting securities. Under these policies, each
Fund may not:


                                       8

<PAGE>

1.     As to 75% of the value of its total  assets,  invest  more than 5% of its
       total  assets,  at market  value,  in the  securities  of any one  issuer
       (except  securities  issued  or  guaranteed  by  the US  Government,  its
       agencies or instrumentalities).

2.     Invest  more  than 25% of its  total  assets,  at  market  value,  in the
       securities of issuers  principally  engaged in the same industry  (except
       securities  issued or  guaranteed by the US  Government,  its agencies or
       instrumentalities).

3.     Own more than 10% of the outstanding  voting securities of any issuer, or
       more than 10% of any class of securities of one issuer.

4.     Invest more than 5% of the value of its total assets, at market value, in
       the securities of issuers which,  with their  predecessors,  have been in
       business  less than  three  years;  provided,  however,  that  securities
       guaranteed  by a  company  that  (including  predecessors)  has  been  in
       operation  at least three  continuous  years shall be excluded  from this
       limitation.

   
5.     Purchase  securities  of open-end  or  closed-end  investment  companies,
       except as permitted  by the  Investment  Company Act of 1940,  as amended
       (1940 Act),  and other  applicable  law or for the purpose of hedging the
       Fund's obligations under the Deferred Compensation Plan for Directors.
    

6.     Invest in warrants  if, at the time of  acquisition,  the  investment  in
       warrants, valued at the lower of cost or market value, would exceed 5% of
       the  Fund's  net  assets.  For  purposes  of this  restriction,  warrants
       acquired by a Fund in units or attached  to  securities  may be deemed to
       have been purchased without cost.

7.     Make loans of money or securities  other than (a) through the purchase of
       securities in accordance with a Fund's investment objective,  (b) through
       repurchase  agreements  and (c) by  lending  portfolio  securities  in an
       amount not to exceed 33 1/3% of its total assets.

8.     Issue  senior  securities  or borrow  money except from banks and then in
       amounts not in excess of 5% (10% for Emerging Markets Growth Fund) of its
       total assets. as described above.

9.     Buy  any  securities  or  other  property  on  margin  (except  for  such
       short-term credits as are necessary for the clearance of transactions).

10.    Invest in companies for the purpose of exercising control or management.

11.    Underwrite  securities of other issuers  except to the extent that a Fund
       may be  deemed  an  underwriter  when  purchasing  or  selling  portfolio
       securities.

12.    Purchase or retain securities of any issuer (other than the shares of the
       Fund) if to the Fund's  knowledge,  those  officers and  directors of the
       Fund  and  the  officers  and  directors  of the  investment  manager  or
       subadviser,  who individually own beneficially more than 1/2 of 1% of the
       outstanding  securities of such issuer,  together own  beneficially  more
       than 5% of such outstanding securities.

13.    Purchase or sell real estate (although it may purchase securities secured
       by real estate or interests therein, or issued by companies or investment
       trusts that invest in real estate or interests therein).

14.    Make short sales except short sales against-the-box.

Each Fund also may not  change  its  investment  objective  without  shareholder
approval.

Under the Investment Company Act of 1940 (the "1940 Act"), a "vote of a majority
of the outstanding  voting  securities" of a Fund means the affirmative  vote of
the lesser of (l) more than 50% of the  outstanding  shares of 

                                       9

<PAGE>

the Fund; or (2) 67% or more of the shares present at a shareholders' meeting if
more than 50% of the outstanding shares are represented at the meeting in person
or by proxy.

   
Temporary Defensive Position

In an  attempt  to respond to  adverse  market,  economic,  political,  or other
conditions,  a Fund may  invest  up to 100% of its total  assets  in  short-term
instruments such as commercial  paper,  bank  certificates of deposit,  bankers'
acceptances,  or repurchase agreements for such securities and securities of the
US Government and its agencies and  instrumentalities,  as well as cash and cash
equivalents  denominated  in foreign  currencies.  Investments  in domestic bank
certificates of deposit and bankers'  acceptances  will be limited to banks that
have  total  assets in excess of $500  million  and are  subject  to  regulatory
supervision by the US Government or state  governments.  A Fund's investments in
commercial paper of US issuers will be limited to (1) obligations  rated Prime-1
by Moody's or A-1 by S&P or (2) unrated  obligations  issued by companies having
an  outstanding  unsecured  debt  issue  currently  rated A or better by S&P.  A
description  of various  commercial  paper ratings and debt  securities  ratings
appears in Appendix A. A Fund's  investments in foreign  short-term  instruments
will be limited to those that, in the opinion of the investment manager,  equate
generally to the standards established for US short-term instruments.

Portfolio Turnover

A Fund's  portfolio  turnover  rate is  calculated  by  dividing  the  lesser of
purchases  or sales of portfolio  securities  for the fiscal year by the monthly
average of the value of the portfolio  securities  owned during the fiscal year.
Securities whose maturity or expiration date at the time of acquisition were one
year or less are excluded from the calculation.  The Funds'  portfolio  turnover
rates for the fiscal years ended October 31, 1998 and 1997 were:
    

        Fund                                            1998            1997
        ----                                            ----            ----
        International Fund                             81.37%          83.11%
        Emerging Markets Growth Fund                   94.09           84.09
        Global Growth Opportunities Fund               45.43           79.32
        Global Smaller Companies Fund                  50.81           57.24
        Global Technology Fund                         87.55           94.06


                             Management of the Funds

   
Board of Directors

The Board of Directors provides broad supervision over the affairs of the Funds.

Management Information
    

Directors  and  officers of the Funds,  together  with  information  as to their
principal business  occupations during the past five years are shown below. Each
Director who is an "interested person" of the Funds, as defined in the 1940 Act,
is indicated by an asterisk. Unless otherwise indicated, their addresses are 100
Park Avenue, New York, NY 10017.


                                       10

<PAGE>

<TABLE>
<CAPTION>
             Name,                                                                     Principal
           (Age) and                   Positions(s) Held                          Occupation(s) During
            Address                        With Fund                                  Past 5 Years
           ---------                   -----------------                          --------------------
<S>                              <C>                             <C>
      William C. Morris*         Director, Chairman of the       Chairman,  J. & W.  Seligman  & Co.  Incorporated,
             (60)                Board, Chief Executive          Chairman and Chief Executive Officer, the Seligman
                                 Officer and Chairman of the     Group of investment companies;  Chairman, Seligman
                                 Executive Committee             Advisors, Inc, Seligman Services,  Inc., and Carbo
                                                                 Ceramics Inc.,  ceramic  proppants for oil and gas
                                                                 industry;    Director,    Seligman   Data   Corp.,
                                                                 Kerr-McGee    Corporation,    diversified   energy
                                                                 company;  and Sarah Lawrence College; and a Member
                                                                 of  the  Board  of  Governors  of  the  Investment
                                                                 Company  Institute.   Formerly,  Director,  Daniel
                                                                 Industries  Inc.,  manufacturer  of  oil  and  gas
                                                                 metering equipment.                               

   
        Brian T. Zino*           Director, President and         Director  and  President,  J. & W.  Seligman & Co.
             (46)                Member of the Executive         Incorporated;  President  (with the  exception  of
                                 Committee                       Seligman Quality Municipal Fund, Inc. and Seligman
                                                                 Select  Municipal  Fund,  Inc.)  and  Director  or
                                                                 Trustee,   the   Seligman   Group  of   investment
                                                                 companies;    Chairman,   Seligman   Data   Corp.;
                                                                 Director,  ICI Mutual Insurance Company;  Seligman
                                                                 Advisors, Inc., and Seligman Services, Inc.       
    

     Richard R. Schmaltz*        Director and Member of the      Director  and  Managing   Director,   Director  of
             (58)                Executive Committee             Investments,  J. & W. Seligman & Co. Incorporated;
                                                                 Director  or  Trustee,   the  Seligman   Group  of
                                                                 investment companies; Director, Seligman Henderson
                                                                 Co.,  and  Trustee   Emeritus  of  Colby  College.
                                                                 Formerly,   Director,   Investment   Research   at
                                                                 Neuberger  & Berman  from  May  1993 to  September
                                                                 1996.                                             

        John R. Galvin                      Director             Dean,  Fletcher  School  of Law and  Diplomacy  at
             (69)                                                Tufts   University;   Director  or  Trustee,   the
       Tufts University                                          Seligman Group of investment companies;  Chairman,
        Packard Avenue,                                          American  Council on  Germany;  a Governor  of the
       Medford, MA 02155                                         Center for Creative Leadership; Director; Raytheon
                                                                 Co., electronics; National Defense University; and
                                                                 the  Institute  for  Defense  Analysis.  Formerly,
                                                                 Director,  USLIFE  Corporation;  Ambassador,  U.S.
                                                                 State   Department  for  negotiations  in  Bosnia;
                                                                 Distinguished   Policy   Analyst   at  Ohio  State
                                                                 University  and Olin  Distinguished  Professor  of
                                                                 National  Security  Studies at the  United  States
                                                                 Military Academy.  From June 1987 to June 1992, he
                                                                 was the Supreme Allied  Commander,  Europe and the
                                                                 Commander-in-Chief,    United   States    European
                                                                 Command.                                          
</TABLE>

                                       11

<PAGE>

<TABLE>
<CAPTION>
             Name,                                                                     Principal
           (Age) and                   Positions(s) Held                          Occupation(s) During
            Address                        With Fund                                  Past 5 Years
           ---------                   -----------------                          --------------------
<S>                              <C>                             <C>
       Alice S. Ilchman                     Director             Retired   President,   Sarah   Lawrence   College;
             (63)                                                Director  or  Trustee,   the  Seligman   Group  of
      18 Highland Circle                                         investment companies;  Director, the Committee for
     Bronxville, NY 10708                                        Economic    Development;    and   Chairman,    The
                                                                 Rockefeller  Foundation,   charitable  foundation.
                                                                 Formerly,    Trustee,   The   Markle   Foundation,
                                                                 philanthropic  organization;  and Director, NYNEX,
                                                                 telephone company; and International  Research and
                                                                 Exchange Board, intellectual exchanges.           

   
       Frank A. McPherson                   Director             Retired  Chairman and Chief  Executive  Officer of 
              (65)                                               Kerr-McGee  Corporation;  Director or Trustee, the 
    123 Robert S. Kerr Ave.                                      Seligman Group of investment companies;  Director, 
    Oklahoma City, OK 73112                                      Kimberly-Clark  Corporation,   consumer  products; 
                                                                 Bank of Oklahoma Holding Company;  Baptist Medical 
                                                                 Center;    Oklahoma    Chapter   of   the   Nature 
                                                                 Conservancy; Oklahoma Medical Research Foundation; 
                                                                 and National Boys and Girls Clubs of America;  and 
                                                                 Member of the  Business  Roundtable  and  National 
                                                                 Petroleum Council.  Formerly,  Chairman,  Oklahoma 
                                                                 City  Public  Schools  Foundation;  and  Director, 
                                                                 Federal Reserve  System's Kansas City Reserve Bank 
                                                                 and the Oklahoma City Chamber of Commerce.         

         John E. Merow                      Director             Retired  Chairman and Senior  Partner,  Sullivan & 
             (69)                                                Cromwell,  law  firm;  Director  or  Trustee,  the 
       125 Broad Street,                                         Seligman Group of investment companies;  Director, 
      New York, NY 10004                                         Commonwealth  Industries,  Inc.,  manufacturers of 
                                                                 aluminum  sheet   products;   the  Foreign  Policy 
                                                                 Association;  Municipal  Art  Society of New York; 
                                                                 the U.S. Council for International  Business;  and 
                                                                 New York Presbyterian Hospital; Chairman, American 
                                                                 Australian Association;  and New York Presbyterian 
                                                                 Healthcare  Network,  Inc.;   Vice-Chairman,   the 
                                                                 U.S.-New  Zealand  Council;   and  Member  of  the 
                                                                 American  Law  Institute  and  Council  on Foreign 
                                                                 Relations.                                         
    

        Betsy S. Michel                     Director             Attorney;  Director or Trustee, the Seligman Group
             (56)                                                of investment companies; Trustee, The Geraldine R.
         P.O. Box 449                                            Dodge  Foundation,   charitable  foundation;   and
      Gladstone, NJ 07934                                        Chairman of the Board of Trustees of St.  George's
                                                                 School  (Newport,  RI).  Formerly,  Director,  the
                                                                 National   Association  of   Independent   Schools
                                                                 (Washington, DC).                                 
</TABLE>


                                       12

<PAGE>

<TABLE>
<CAPTION>
             Name,                                                                     Principal
           (Age) and                   Positions(s) Held                          Occupation(s) During
            Address                        With Fund                                  Past 5 Years
           ---------                   -----------------                          --------------------
<S>                              <C>                             <C>
        James C. Pitney                     Director             Retired Partner, Pitney, Hardin, Kipp & Szuch, law
             (72)                                                firm;  Director or Trustee,  the Seligman Group of
 Park Avenue at Morris County,                                   investment companies.  Formerly,  Director, Public
 P.O. Box 1945, Morristown, NJ                                   Service Enterprise Group, public utility.         
             07962                                               

       James Q. Riordan                     Director             Director  or  Trustee,   the  Seligman   Group  of
             (71)                                                investment   companies;   Director,   The  Houston
       675 Third Avenue,                                         Exploration Company; The Brooklyn Museum,  KeySpan
          Suite 3004                                             Energy   Corporation;   and  Public   Broadcasting
      New York, NY 10017                                         Service;  and Trustee,  the Committee for Economic
                                                                 Development.  Formerly,  Co-Chairman of the Policy
                                                                 Council of the Tax  Foundation;  Director,  Tesoro
                                                                 Petroleum Companies, Inc. and Dow Jones & Company,
                                                                 Inc.; Director and President, Bekaert Corporation;
                                                                 and Co-Chairman, Mobil Corporation.               

   
       Robert L. Shafer                     Director             Retired Vice President,  Pfizer Inc.;  Director or
             (66)                                                Trustee,   the   Seligman   Group  of   investment
     96 Evergreen Avenue,                                        companies. Formerly, Director, USLIFE Corporation.
         Rye, NY 10580                                           

       James N. Whitson                     Director             Director  and  Consultant,   Sammons  Enterprises,
             (63)                                                Inc.;  Director or Trustee,  the Seligman Group of
    6606 Forestshire Drive                                       investment   companies;   Director,   C-SPAN   and
       Dallas, TX 75230                                          CommScope,  Inc.,  manufacturer of coaxial cables.
                                                                 Formerly,    Executive   Vice   President,   Chief
                                                                 Operating Officer, Sammons Enterprises,  Inc.; and
                                                                 Director, Red Man Pipe and Supply Company,  piping
                                                                 and other materials.                              
    

         Peter Bassett            Vice President and Portfolio   Portfolio Manager, Henderson Investment Management
              (43)                          Manager              Limited.  He  has  been  a  portfolio  manager  at
                                                                 Henderson plc, investment managers, since December
                                                                 1992.                                             

         Iain C. Clark            Vice President and Portfolio   Managing  Director and Chief  Investment  Officer,
              (48)                          Manager              Seligman  Henderson  Co.,  advisers,  since  April
                                                                 1992. He has been a Director and Senior  Portfolio
                                                                 Manager, Henderson plc, investment managers, since
                                                                 April, 1985.                                      
</TABLE>


                                       13

<PAGE>

<TABLE>
<CAPTION>
             Name,                                                                     Principal
           (Age) and                   Positions(s) Held                          Occupation(s) During
            Address                        With Fund                                  Past 5 Years
           ---------                   -----------------                          --------------------
<S>                              <C>                             <C>
          Nitin Mehta             Vice President and Portfolio   Portfolio Manager, Henderson Investment Management
              (38)                          Manager              Limited.  He has  been a  portfolio  manager  with
                                                                 Henderson   plc,   investment   managers,    since
                                                                 September  1994 and  from  May  1993 to  September
                                                                 1994,  he was  Head  of  Currency  Management  and
                                                                 Derivatives at Quorum Capital Management.         

   
        Arsen Mrakovcic           Vice President and Portfolio   Managing   Director,   J.  &  W.  Seligman  &  Co.
              (33)                          Manager              Incorporated;   Vice   President   and   Portfolio
                                                                 Manager,  two other open-end investment  companies
                                                                 in the  Seligman  Group of  investment  companies.
                                                                 Formerly, Vice President, Investment Officer, J. &
                                                                 W. Seligman & Co.  Incorporated  from January 1995
                                                                 to January 1996 and Portfolio  Assistant,  J. & W.
                                                                 Seligman  & Co.  Incorporated  from  June  1992 to
                                                                 January 1995.                                     
    

          Paul H. Wick            Vice President and Portfolio   Director and Managing Director, J. & W. Seligman &
              (36)                          Manager              Co. Incorporated,  since January 1995 and November
                                                                 1997,  respectively;  Vice President and Portfolio
                                                                 Manager,  two other open-end investment  companies
                                                                 in the  Seligman  Group of  investment  companies;
                                                                 Portfolio  Manager,   Seligman  Henderson  Co.  He
                                                                 joined J. & W. Seligman & Co. Incorporated in 1987
                                                                 as an Associate, Investment Research.             

       Lawrence P. Vogel                 Vice President          Senior Vice President, Finance, J. & W. Seligman &
             (42)                                                Co.  Incorporated,  Seligman  Advisors,  Inc., and
                                                                 Seligman Data Corp.; Vice President,  the Seligman
                                                                 Group  of   investment   companies   and  Seligman
                                                                 Services, Inc.; and Treasurer,  Seligman Henderson
                                                                 Co.                                               

   
        Frank J. Nasta                     Secretary             General  Counsel,  Senior Vice President,  Law and
             (34)                                                Regulation  and  Corporate  Secretary,   J.  &  W.
                                                                 Seligman  &  Co.  Incorporated;   Secretary,   the
                                                                 Seligman Group of investment  companies,  Seligman
                                                                 Advisors,  Inc.,  Seligman Henderson Co., Seligman
                                                                 Services, Inc., and Seligman Data Corp.           
    

         Thomas G. Rose                    Treasurer             Treasurer,   the  Seligman   Group  of  investment
              (41)                                               companies and Seligman Data Corp.                 
</TABLE>

The  Executive  Committee  of the Board  acts on  behalf  of the  Board  between
meetings to determine the value of securities  and assets owned by the Funds for
which no market valuation is available,  and to elect or appoint officers of the
Funds to serve until the next meeting of the Board.

Directors  and officers of the Funds are also  directors and officers of some or
all of the other investment companies in the Seligman Group.


                                       14

<PAGE>

Compensation

<TABLE>
<CAPTION>
                                                                           Pension or           Total Compensation
                                                      Aggregate       Retirement Benefits         From Funds and
                    Name and                        Compensation       Accrued as Part of        Fund Complex Paid
               Position with Fund                  From Funds (1)        Fund Expenses          to Directors (1)(2)
               ------------------                  --------------        -------------          -------------------
<S>                                                   <C>                    <C>                  <C>    
William C. Morris, Director and Chairman                 N/A                 N/A                      N/A
Brian T. Zino, Director and President                    N/A                 N/A                      N/A
Richard R. Schmaltz, Director                            N/A                 N/A                      N/A
John R. Galvin, Director                              $6,265.18              N/A                  $77,000
Alice S. Ilchman, Director                             5,905.83              N/A                   70,000
Frank A. McPherson, Director                           6,158.78              N/A                   75,000
John E. Merow, Director                                6,109.93              N/A                   74,000
Betsy S. Michel, Director                              6,265.18              N/A                   77,000
James C. Pitney, Director                              6,007.88              N/A                   72,000
James Q. Riordan, Director                             6,007.88              N/A                   72,000
Robert L. Shafer, Director                             6,007.88              N/A                   72,000
James N. Whitson, Director                             6,265.18 (d)          N/A                   77,000(d)
</TABLE>

- ----------
(1)  For the Fund's  fiscal year ended October 31, 1998.  Effective  January 16,
     1998,  the per meeting fee for Directors was increased by $1,000,  which is
     allocated among all Funds in the Fund Complex.
(2)  The Seligman Group of investment  companies consists of eighteen investment
     companies. 
(d)  Deferred.

   
Seligman Henderson Global Fund Series, Inc. has a compensation arrangement under
which  outside  directors  may elect to defer  receiving  their  fees.  Seligman
Henderson  Global Fund  Series,  Inc. has adopted a Deferred  Compensation  Plan
under which a director who has elected  deferral of his or her fees may choose a
rate of return  equal to either (1) the  interest  rate on  short-term  Treasury
bills,  or (2)  the  rate  of  return  on the  shares  of any of the  investment
companies advised by J. & W. Seligman & Co.  Incorporated,  as designated by the
director.  The cost of such fees and earnings is included in directors' fees and
expenses,  and the accumulated  balance thereof is included in other liabilities
in the Funds' financial  statements.  The total amount of deferred  compensation
(including  earnings)  payable  in  respect  of the Funds to Mr.  Whitson  as of
October 31, 1998 was $22,159.  Messrs.  Merow and Pitney no longer defer current
compensation; however, they have accrued deferred compensation in the amounts of
$12,364 and $1,501, respectively, as of October 31, 1998.
    

The Funds may, but are not obligated to,  purchase  shares of Seligman  Group of
investment  companies to hedge their obligations in connection with the Deferred
Compensation Plan.

Sales Charges

Class A shares of each Fund may be issued  without a sales charge to present and
retired directors,  trustees,  officers, employees (and their family members) of
the Funds,  the other  investment  companies in the Seligman Group,  and J. & W.
Seligman & Co.  Incorporated  and its affiliates.  Family members are defined to
include lineal descendants and lineal ancestors, siblings (and their spouses and
children) and any company or  organization  controlled by any of the  foregoing.
Such sales may also be made to employee  benefit plans and thrift plans for such
persons and to any  investment  advisory,  custodial,  trust or other  fiduciary
account  managed  or  advised  by J. & W.  Seligman  & Co.  Incorporated  or any
affiliate. The sales may be made for investment purposes only, and shares may be
resold only to a Fund.

Class A shares may be sold at net asset value to these  persons since such sales
require  less sales  effort and lower sales  related  expenses as compared  with
sales to the general public.


                                       15

<PAGE>

               Control Persons and Principal Holders of Securities

   
Control Persons

As of January 31, 1999, there was no person or persons who controlled any of the
Funds,  either  through a significant  ownership of shares or any other means of
control.


Principal Holders

As of January 31, 1999, MLPF&S for the Sole Benefit of Its Customers,  Attn Fund
Administration,  4800 Deer Lake Drive East, 3rd Floor,  Jacksonville,  FL 32246,
owned  of  record  more  than 5% of the  outstanding  shares  of a class  of the
following Funds:


                                                           Percentage of Total
                                                          Outstanding Shares of
        Fund                                    Class     the Class of the Fund
        ----                                    -----     ---------------------
        International Fund                        A               18.74%
                                                  B               35.37%
                                                  D               31.14%

        Emerging Markets Growth Fund              A               12.47%
                                                  B               36.68%
                                                  D               32.51%

        Global Growth Opportunities Fund          A               36.20%
                                                  B               41.19%
                                                  D               46.55%

        Global Smaller Companies Fund             A               21.86%
                                                  B               34.31%
                                                  D               45.30%

        Global Technology Fund                    A               18.47%
                                                  B               32.01%
                                                  D               28.64%

Management Ownership

As of January 31,  1999,  Directors  and  officers of the Funds as a group owned
3.57% of the  Class A shares  of the  International  Fund;  1.62% of the Class A
shares of the Emerging  Markets Growth Fund;  1.86% of the Class A shares of the
Global Growth Opportunities Fund; and less than 1% of the Class A shares of each
of the Global Smaller  Companies Fund and the Global  Technology Fund. As of the
same date,  no  Directors  or officers of the Funds owned any Class B or Class D
capital stock of any Fund.


                     Investment Advisory and Other Services

Investment Manager
    

J. & W. Seligman & Co.  Incorporated  (Seligman) manages the Fund. Seligman is a
successor  firm to an  investment  banking  business  founded  in 1864 which has
thereafter provided investment services to individuals,  families, institutions,
and  corporations.  On December 29, 1988, a majority of the  outstanding  voting
securities of Seligman was purchased by Mr. William C. Morris and a simultaneous
recapitalization  of Seligman  occurred.  See Appendix B for further  history of
Seligman.


                                       16

<PAGE>

All of the  officers  of the Fund listed  above are  officers  or  employees  of
Seligman.  Their affiliations with the Fund and with Seligman are provided under
their principal business occupations.

Each Fund pays Seligman a management fee for its services,  calculated daily and
payable  monthly.  The  management fee is equal to 1.00% per annum of the Fund's
average daily net assets for each of the  International  Fund, the Global Growth
Opportunities  Fund, the Global Smaller Companies Fund and the Global Technology
Fund. The management fee is equal to 1.25% per annum of the Fund's average daily
net assets for the Emerging  Markets Growth Fund. The following  chart indicates
the  management  fees  paid by each  Fund as well as the  percentage  such  fees
represents  of each Fund's  average  daily net assets for the fiscal years ended
October 31, 1998, 1997, and 1996.


<TABLE>
<CAPTION>
   
                                                         Fiscal                                  % of
                                                      Year/Period        Management        Average Daily
      Fund                                               Ended          Fee Paid ($)       Net Assets (%)
      ----                                               -----          ------------       --------------
<S>                                                     <C>               <C>                    <C>  
      International Fund                                10/31/98            $954,634             1.00%
                                                        10/31/97             993,229             1.00
                                                        10/31/96             963,308             1.00

      Emerging Markets Growth Fund                      10/31/98          $1,034,015             1.25%
                                                        10/31/97           1,110,307             1.25
                                                        10/31/96*             66,785**            .45**

      Global Growth Opportunities Fund                  10/31/98          $1,982,193             1.00%
                                                        10/31/97           1,903,374             1.00
                                                        10/31/96           1,318,826             1.00

      Global Smaller Companies Fund                     10/31/98          $9,995,944             1.00%
                                                        10/31/97           9,494,033             1.00
                                                        10/31/96           4,279,964             1.00

      Global Technology Fund                            10/31/98          $8,247,297             1.00%
                                                        10/31/97           8,488,410             1.00
                                                        10/31/96           7,054,213             1.00
    
</TABLE>

*    For the period 5/28/96 (commencement of operations) to 10/31/96.
**   During  the  period,  Seligman  and/or  the  prior  subadviser,   at  their
     discretion, elected to waive a portion of its fees.

Under  a  Subadvisory   Agreement  dated  July  1,  1998,  Henderson  Investment
Management Limited (HIML) furnishes  investment advice,  research and assistance
with respect to each Fund's non-US investments.

HIML,  headquartered  in the United Kingdom,  was  incorporated in 1984 and is a
registered investment adviser under the Investment Advisers Act of 1940. HIML is
a wholly owned subsidiary of Henderson plc. Henderson plc is a subsidiary of AMP
Limited, an Australian life insurance and financial services company.  Henderson
plc,  headquartered  in London,  is one of the largest money managers in Europe.
See Appendix C for further history of Henderson plc.

HIML  receives  a fee from  Seligman,  in  respect  of each  Fund,  based on the
"applicable  percentage"  of the average  monthly  assets of such Fund under its
supervision.  The  "applicable  percentage"  is an annual  rate of 0.90% for the
period July 1, 1998 to June 30, 1999;  0.70% for the period July 1, 1999 to June
30, 2000; and 0.50% thereafter.  The Subadvisory Agreement provides that it will
continue  until  December 31, 1999;  and,  thereafter,  is subject to the annual
approval of the Funds' Board of Directors.

Each Fund pays all of its  expenses,  other than those  assumed by  Seligman  or
HIML, including brokerage commissions, administration,  shareholder services and
distribution  fees,  fees and expenses of  independent  attorneys  and auditors,
taxes and governmental fees, including fees and expenses of qualifying the Funds
and  

                                       17

<PAGE>

their shares under federal and state securities laws, cost of stock certificates
and expenses of repurchase  or  redemption  of shares,  expenses of printing and
distributing reports,  notices and proxy materials to shareholders,  expenses of
printing and filing  reports and other  documents  with  governmental  agencies,
expenses of  shareholders'  meetings,  expenses of corporate data processing and
related services,  shareholder record keeping and shareholder  account services,
fees and disbursements of transfer agents and custodians, expenses of disbursing
dividends  and  distributions,  fees and  expenses of directors of the Funds not
employed by or serving as a director of  Seligman or its  affiliates,  insurance
premiums and extraordinary expenses such as litigation expenses.  These expenses
are allocated between each Fund and between the classes of each Fund in a manner
determined by the Board of Directors to be fair and equitable.

The Management  Agreement provides that Seligman will not be liable to the Funds
for any error of judgment or mistake of law, or for any loss  arising out of any
investment,  or for any act or  omission  in  performing  its  duties  under the
Agreement,  except for willful  misfeasance,  bad faith,  gross  negligence,  or
reckless disregard of its obligations and duties under the Agreements.

The Management  Agreement was initially  approved by the Board of Directors at a
meeting  held on March 19, 1992 and by the  shareholders  on May 20,  1993.  The
Management  Agreement  will continue in effect until December 31 of each year if
(1) such  continuance is approved in the manner  required by the 1940 Act (i.e.,
by a vote of a majority of the Board of Directors or of the  outstanding  voting
securities of each Fund and by a vote of a majority of the Directors who are not
parties to the Management Agreement or interested persons of any such party) and
(2) Seligman has not notified the Funds at least 60 days prior to December 31 of
any year that it does not desire such continuance.  The Management Agreement may
be terminated by a Fund, without penalty, on 60 days' written notice to Seligman
and  will  terminate  automatically  in the  event of its  assignment.  Seligman
Henderson  Global  Fund  Series,  Inc.  has  agreed  to  change  its  name  upon
termination of the Management Agreement if continued use of the name would cause
confusion in the context of Seligman's business.

Officers,  directors  and  employees  of  Seligman  are  permitted  to engage in
personal securities transactions, subject to Seligman's Code of Ethics. The Code
of Ethics  proscribes  certain  practices  with  regard to  personal  securities
transactions and personal  dealings,  provides a framework for the reporting and
monitoring of personal securities transactions by Seligman's Compliance Officer,
and sets forth a  procedure  of  identifying,  for  disciplinary  action,  those
individuals who violate the Code of Ethics. The Code of Ethics prohibits each of
the  officers,  directors and employees  (including  all portfolio  managers) of
Seligman from purchasing or selling any security that the officer,  director, or
employee knows or believes (1) was  recommended by Seligman for purchase or sale
by any client,  including the Fund, within the preceding two weeks, (2) has been
reviewed by Seligman  for  possible  purchase or sale within the  preceding  two
weeks, (3) is being purchased or sold by any client,  (4) is being considered by
a research analyst,  (5) is being acquired in a private placement,  unless prior
approval has been obtained from Seligman's  Compliance  Officer, or (6) is being
acquired during an initial or secondary public offering. The Code of Ethics also
imposes a strict standard of confidentiality  and requires portfolio managers to
disclose  any  interest  they may have in the  securities  or issuers  that they
recommend for purchase by any client.

The Code of Ethics also  prohibits  (1) each  portfolio  manager or member of an
investment  team from  purchasing or selling any security  within seven calendar
days of the  purchase or sale of the security by a client's  account  (including
investment  company accounts) for which the portfolio manager or investment team
manages;  and (2) each employee from engaging in short-term  trading (a purchase
and sale or vice-versa  within 60 days). Any profit realized  pursuant to either
of these prohibitions must be disgorged.

Officers,  directors,  and  employees  are  required,  except under very limited
circumstances,  to engage in personal securities transactions through Seligman's
order  desk.  The order  desk  maintains  a list of  securities  that may not be
purchased due to a possible conflict with clients.  All officers,  directors and
employees are also  required to disclose all  securities  beneficially  owned by
them on December 31 of each year.

                                       18

<PAGE>

Principal Underwriter

Seligman Advisors,  Inc., (Seligman Advisors) an affiliate of Seligman, 100 Park
Avenue,  New York, New York 10017, acts as general  distributor of the shares of
each Fund and of the other mutual funds in the Seligman Group. Seligman Advisors
is an  "affiliated  person" (as defined in the 1940 Act) of  Seligman,  which is
itself an affiliated  person of the Funds.  Those  individuals  identified above
under  "Management  Information"  as directors or officers of both the Funds and
Seligman Advisors are affiliated persons of both entities.

   
Services Provided by the Investment Manager
    

Under the Management Agreement,  dated March 19, 1992, subject to the control of
the Board of Directors,  Seligman  manages the  investment of the assets of each
Fund,  including making purchases and sales of portfolio  securities  consistent
with each  Fund's  investment  objectives  and  policies,  and  administers  its
business and other affairs.  Seligman  provides the Fund with such office space,
administrative  and other  services  and  executive  and other  personnel as are
necessary  for  Fund  operations.  Seligman  pays  all  of the  compensation  of
directors of the Fund who are  employees or  consultants  of Seligman and of the
officers and employees of the Fund. Seligman also provides senior management for
Seligman Data Corp., the Fund's shareholder service agent.

Service Agreements

There are no other management-related service contracts under which services are
provided to the Fund.

Other Investment Advice

No person or persons,  other than directors,  officers, or employees of Seligman
or HIML, regularly advise the Fund with respect to its investments.

Dealer Reallowances

Dealers and financial  advisors receive a percentage of the initial sales charge
on sales of Class A shares of the Fund, as set forth below:

<TABLE>
<CAPTION>
                                                                                   Regular Dealer
                                    Sales Charge           Sales Charge              Reallowance
                                     As a % of             as a % of Net              As a % of
Amount of Purchase               Offering Price(1)        Amount Invested          Offering Price
- ------------------               -----------------        ---------------          --------------
<S>                                    <C>                    <C>                      <C>  
Less than   $ 50,000                   4.75%                  4.99%                    4.25%
$50,000  -  $ 99,999                   4.00                   4.17                     3.50
$100,000  -  $249,999                  3.50                   3.63                     3.00
$250,000  -  $499,999                  2.50                   2.56                     2.25
$500,000  -  $999,999                  2.00                   2.04                     1.75
$1,000,000  and over(2)                   0                      0                        0
</TABLE>

(1)  "Offering  Price" is the amount that you actually  pay for Fund shares;  it
     includes the initial sales charge.
(2)  You will not pay a sales charge on purchases of $1 million or more, but you
     will be subject to a 1% CDSC if you sell your shares within 18 months.


                                       19

<PAGE>

   
Seligman Services,  Inc.  (Seligman  Services),  an affiliate of Seligman,  is a
limited  purpose  broker/dealer.   Seligman  Services  is  eligible  to  receive
commissions  from certain  sales of Fund shares.  For fiscal years ended October
31,  1998,  1997,  and  1996,  Seligman  Services  received  commissions  in the
following amounts:
    

Fund                                       1998            1997           1996
- ----                                       ----            ----           ----
International Fund                       $ 8,971         $ 1,009        $ 3,204
Emerging Markets Growth Fund                 647           7,957          2,722*
Global Growth Opportunities Fund          10,047           1,921          9,362
Global Smaller Companies Fund             45,438          35,359        137,567
Global Technology Fund                    90,491          38,720        190,014

*    For the period 5/28/96 (commencement of operations) to 10/31/96.

   
Rule 12b-1 Plans

Each Fund has adopted an Administration,  Shareholder  Services and Distribution
Plan (12b-1  Plan) in  accordance  with  Section  12(b) of the 1940 Act and Rule
12b-1 thereunder.

Under its 12b-1 Plan, each Fund may pay to Seligman Advisors an  administration,
shareholder  services  and  distribution  fee in respect of the Fund's  Class A,
Class B, and Class D shares.  Payments under the 12b-1 Plan may include, but are
not limited to: (1) compensation to securities  dealers and other  organizations
(Service  Organizations) for providing  distribution  assistance with respect to
assets  invested in the Fund;  (2)  compensation  to Service  Organizations  for
providing administration, accounting and other shareholder services with respect
to Fund  shareholders;  and (3)  otherwise  promoting  the sale of shares of the
Fund,  including  paying for the preparation of advertising and sales literature
and the printing and distribution of such promotional materials and prospectuses
to  prospective  investors and defraying  Seligman  Advisors'  costs incurred in
connection  with its  marketing  efforts  with  respect  to  shares of the Fund.
Seligman,  in its sole  discretion,  may also make similar  payments to Seligman
Advisors  from its own  resources,  which may  include the  management  fee that
Seligman  receives  from each  Fund.  Payments  made by each Fund under its Rule
12b-1 Plan are intended to be used to encourage  sales of such Fund,  as well as
to discourage redemptions.

Fees paid by each Fund under its 12b-1 Plan with  respect to any class of shares
may not be used to pay expenses incurred solely in respect of any other class or
any other Seligman fund. Expenses  attributable to more than one class of a Fund
will be allocated between the classes in accordance with a methodology  approved
by  the  Funds'  Board  of  Directors.   Each  Fund  may  participate  in  joint
distribution  activities  with other  Seligman  funds,  and the expenses of such
activities will be allocated among the applicable funds based on relative sales,
in accordance with a methodology approved by the Board.

Class A

Under its 12b-1 Plan, each Fund, with respect to Class A shares,  pays quarterly
to  Seligman  Advisors  a  service  fee at an  annual  rate of up to .25% of the
average  daily net asset  value of the  Class A shares.  These  fees are used by
Seligman Advisors  exclusively to make payments to Service  Organizations  which
have entered into agreements with Seligman Advisors.  Such Service Organizations
receive  from  Seligman  Advisors a  continuing  service fee of up to .25% on an
annual  basis,  payable  quarterly,  of the average  daily net assets of Class A
shares  attributable  to  the  particular  Service  Organization  for  providing
personal service and/or maintenance of shareholder accounts.  The fee payable to
Service Organizations from time to time shall, within such limits, be determined
by the Directors.  The Funds are not obligated to pay Seligman  Advisors for any
such costs it incurs in excess of the fee described above. No expenses  incurred
in one fiscal year by Seligman Advisors with respect to Class A shares of a Fund
may be paid from Class A 12b-1 fees  received from that Fund in any other fiscal
year.  If a Fund's  12b-1 Plan is  terminated  in respect of Class A shares,  no
amounts (other than amounts accrued but not yet paid) would be owed by that Fund
to Seligman Advisors with
    

                                       20

<PAGE>

   
respect  to Class A shares.  The  total  amount  paid by each  Fund to  Seligman
Advisors in respect of Class A shares for the fiscal year ended October 31, 1998
was as follows:

                                                     Total          % of Average
        Fund                                       Fees Paid         Net Assets
        ----                                       ---------         ----------
        International Fund                          $ 97,702              .21%
        Emerging Markets Growth Fund                  80,916             .23
        Global Growth Opportunities Fund             261,123             .24
        Global Smaller Companies Fund                982,147             .24
        Global Technology Fund                     1,334,768             .24

Class B

Under its 12b-1 Plan, each Fund, with respect to Class B shares,  pays monthly a
12b-1 fee at an annual rate of up to 1% of the average  daily net asset value of
the Class B shares. The fee is comprised of (1) a distribution fee equal to .75%
per annum,  which is paid  directly to a third  party,  FEP  Capital,  L.P.,  to
compensate  it for having  funded,  at the time of sale of Fund  shares (i) a 4%
commission  payment to Service  Organizations in connection with the sale of the
Class B shares and (ii) a payment of up to .25% of sales to Seligman Advisors to
help defray its costs of distributing  Class B shares;  and (2) a service fee of
up to .25% per annum which is paid to Seligman Advisors. The service fee is used
by Seligman Advisors exclusively to make payments to Service Organizations which
have entered into agreements with Seligman Advisors.  Such Service Organizations
receive  from  Seligman  Advisors a  continuing  service fee of up to .25% on an
annual  basis,  payable  quarterly,  of the average  daily net assets of Class B
shares  attributable  to  the  particular  Service  Organization  for  providing
personal  service  and/or  maintenance  of  shareholder  accounts.  The  amounts
expended by  Seligman  Advisors  or FEP  Capital,  L.P. in any one year upon the
initial  purchase  of Class B shares of a Fund may exceed the 12b-1 fees paid by
that Fund in that year.  Each Fund's  12b-1 Plan  permits  expenses  incurred in
respect of Class B shares in one fiscal  year to be paid from Class B 12b-1 fees
received from the Fund in any other fiscal year; however, in any fiscal year the
Funds are not  obligated  to pay any 12b-1 fees in excess of the fees  described
above.  Seligman Advisors and FEP Capital,  L.P. are not reimbursed for expenses
which exceed such fees. If a Fund's 12b-1 Plan is terminated in respect of Class
B shares, no amounts (other than amounts accrued but not yet paid) would be owed
by that Fund to Seligman  Advisors or FEP Capital,  L.P. with respect to Class B
shares.  The total amount paid by each Fund in respect of Class B shares for the
fiscal  year ended  October 31,  1998,  was equal to 1% per annum of the average
daily net assets of Class B shares, as follows:

             Fund                                          Total Fees Paid
             ----                                          ---------------

             International Fund                             $   84,989
             Emerging Markets Growth Fund                      242,231
             Global Growth Opportunities Fund                  214,020
             Global Smaller Companies Fund                   2,534,097
             Global Technology Fund                            599,016

Class D 

Under its 12b-1 Plan, each Fund, with respect to Class D shares, pays monthly to
Seligman Advisors a 12b-1 fee at an annual rate of up to 1% of the average daily
net asset  value of Class D shares.  This fee is used by Seligman  Advisors,  as
follows:  During  the  first  year  following  the  sale of  Class D  shares,  a
distribution fee of .75% of the average daily net assets attributable to Class D
shares is used, along with any CDSC proceeds, to (1) reimburse Seligman Advisors
for its payment at the time of sale of Class D shares of a .75% sales commission
to Service Organizations, and (2) pay for other distribution expenses, including
paying for the preparation of advertising and sales  literature and the printing
and distribution of such  promotional  materials and prospectuses to prospective
investors and other marketing costs of Seligman  Advisors.  In addition,  during
the first year following the sale of Class D shares, a service fee of up to .25%
of the average daily net assets  attributable  to such Class D shares is used to
reimburse  Seligman Advisors for its prepayment to Service  
    

                                       21

<PAGE>

   
Organizations  at the time of sale of Class D shares of a  service  fee of up to
 .25% of the net asset value of the Class D share sold (for shareholder  services
to be  provided  to  Class D  shareholders  over  the  course  of the  one  year
immediately  following the sale). The payment to Seligman Advisors is limited to
amounts Seligman Advisors actually paid to Service  Organizations at the time of
sale as service  fees.  After the initial  one-year  period  following a sale of
Class D shares, the entire 12b-1 fee attributable to such Class D shares is paid
to Service  Organizations  for  providing  continuing  shareholder  services and
distribution  assistance in respect of assets  invested in each Fund.  The total
amount  paid by each Fund in respect of Class D shares for the fiscal year ended
October 31,  1998 was equal to 1% per annum of the  average  daily net assets of
Class D shares, as follows:

       Fund                                          Total Fees Paid
       ----                                          ---------------

       International Fund                              $  408,081
       Emerging Markets Growth Fund                       230,636
       Global Growth Opportunities Fund                   675,874
       Global Smaller Companies Fund                    3,401,501
       Global Technology Fund                           2,183,150

The amounts expended by Seligman  Advisors in any one year with respect to Class
D shares of a Fund may exceed  12b-1  fees paid by the Fund in that  year.  Each
Fund's 12b-1 Plan permits expenses  incurred by Seligman  Advisors in respect of
Class D shares in one fiscal  year to be paid from  Class D 12b-1 fees  received
from the Fund in any other  fiscal year;  however,  in any fiscal year the Funds
are not obligated to pay any 12b-1 fees in excess of the fees described above.

As of  September  30,  1998 (the most  recent  calendar  quarter  for which such
information was reported),  Seligman Advisors has incurred the following amounts
of unreimbursed expenses in respect of each Fund's Class D shares:

<TABLE>
<CAPTION>
                                           Amount of Unreimbursed
                                           Expenses Incurred with    % of the Net Assets of
                                            Respect to Class D             Class D at
       Fund                                        Shares               October 31, 1998
       ----                                        ------               ----------------
<S>                                               <C>                         <C> 
       International Fund                         $41,767                     .11%
       Emerging Markets Growth Fund                16,429                     .12
       Global Growth Opportunities Fund             --                         --
       Global Smaller Companies Fund              714,746                     .26
       Global Technology Fund                      21,862                     .01
</TABLE>

If a Fund's 12b-1 Plan is  terminated  in respect of Class D shares,  no amounts
(other  than  amounts  accrued  but not yet paid)  would be owed by that Fund to
Seligman Advisors with respect to Class D shares.

Payments  made by each Fund  under  its 12b-1  Plan for the  fiscal  year  ended
October  31,  1998,  were spent on the  following  activities  in the  following
amounts:

<TABLE>
<CAPTION>
                                                        Compensation to   Compensation to         Other    
Fund/Class                                                Underwriters     Broker/Dealers     Compensation*
- ----------                                                ------------     --------------     -------------
<S>                                                          <C>               <C>                 <C>
International Fund/Class A                                     --              $97,702              --
International Fund/Class B                                   $16,882             4,649              $63,458
International Fund/Class D                                    60,430           347,651              --

Emerging Markets Growth Fund/Class A                           --              $80,916              --
Emerging Markets Growth Fund/Class B                         $46,877            15,014             $180,340
Emerging Markets Growth Fund/Class D                          77,013           153,623              --
</TABLE>
    


                                       22

<PAGE>

   
<TABLE>
<CAPTION>
                                                        Compensation to   Compensation to         Other    
Fund/Class                                                Underwriters     Broker/Dealers     Compensation*
- ----------                                                ------------     --------------     -------------
<S>                                                         <C>              <C>                 <C>
Global Growth Opportunities Fund/Class A                       --              $261,123             --
Global Growth Opportunities Fund/Class B                     $42,110             12,271            $159,639
Global Growth Opportunities Fund/Class D                      84,005            591,869             --

Global Smaller Companies Fund/Class A                          --              $982,147             --
Global Smaller Companies Fund/Class B                       $498,374            145,280          $1,890,443
Global Smaller Companies Fund/Class D                        709,878          2,691,623             --

Global Technology Fund/Class A                                 --            $1,334,768             --
Global Technology Fund/Class B                              $119,146             32,898            $446,972
Global Technology Fund/Class D                               147,575          2,035,575             --
</TABLE>

*    Payment is made to FEP Capital, L. P. to compensate it for having funded at
     the time of sale, payments to broker/dealers and underwriters.
    

The 12b-1 Plan with respect to the International Fund was originally approved on
July 15, 1993 by the Board of  Directors,  including a majority of the Directors
who are not  "interested  persons"  (as defined in the 1940 Act) and who have no
direct or indirect  financial  interest in the operation of the Fund  (Qualified
Directors) and by the shareholders of such Fund on September 21, 1993. The 12b-1
Plan with respect to the Emerging Markets Growth Fund was originally approved on
March 21, 1996 by the Board of Directors,  including a majority of the Qualified
Directors,  and by the sole  shareholder  of each Class of shares of the Fund on
May 10,  1996.  The 12b-1 Plan with respect to the Global  Growth  Opportunities
Fund was  originally  approved on September  21, 1995 by the Board of Directors,
including a majority of the Qualified Directors,  and by the sole shareholder of
such Fund on October 30, 1995. The 12b-1 Plan with respect to the Global Smaller
Companies  Fund  was  originally  approved  on July  16,  1992 by the  Board  of
Directors,  including a majority of the Qualified  Directors.  Amendments to the
12b-1 Plan in respect of Class D shares of the  Global  Smaller  Companies  Fund
were approved by the Board of Directors of the Fund, including a majority of the
Qualified  Directors,  on March 18, 1993 and the amended 12b-1 Plan was approved
by the  shareholders  of the Global Smaller  Companies Fund on May 20, 1993. The
12b-1 Plan with respect to the Global Technology Fund was originally approved on
March 17, 1994 by the Board of Directors,  including a majority of the Qualified
Directors,  and by the sole  shareholder  of such Fund on that  date.  The 12b-1
Plans were approved in respect of the Class B shares of each Fund other than the
Emerging  Markets  Growth  Fund on March  21,  1996 by the  Board of  Directors,
including a majority of the Qualified Directors,  and by the sole shareholder of
each such Fund's Class B shares on that date, and became effective in respect of
such Class B shares on April 22, 1996.

The 12b-1 Plans will continue in effect through December 31 of each year so long
as such  continuance  is  approved  annually  by a  majority  vote  of both  the
Directors and the Qualified  Directors,  cast in person at a meeting  called for
the purpose of voting on such approval. No material amendment to the 12b-1 Plans
may be made except by a majority of both the Directors and Qualified  Directors.
The 12b-1 Plans may not be amended to increase materially the amounts payable to
Service Organizations with respect to a Class without the approval of a majority
of the  outstanding  voting  securities of such Class.  If the amount payable in
respect of Class A shares  under a Fund's 12b-1 Plan is proposed to be increased
materially, the Fund will either (i) permit holders of Class B shares to vote as
a separate  class on the  proposed  increase  or (ii)  establish  a new class of
shares  subject to the same  payment  under the 12b-1 Plan as  existing  Class A
shares, in which case Class B shares will thereafter  convert into the new class
instead of into Class A shares.

The 12b-1 Plans  require that the  Treasurer  of the Funds shall  provide to the
Directors and the Directors shall review,  at least quarterly,  a written report
of the amounts  expended (and  purposes  therefor)  under the 12b-1 Plans.  Rule
12b-1 also requires  that the selection and  nomination of Directors who are not
"interested persons" of the Funds be made by such disinterested  Directors.  The
12b-1 Plans are reviewed by the Directors annually.

                                       23

<PAGE>

Seligman  Services acts as a broker/dealer  of record for  shareholder  accounts
that  do  not  have  a  designated  financial  advisor.  As  such,  it  receives
compensation  from each Fund pursuant to its 12b-1 Plan for  providing  personal
services  and  account  maintenance  to such  accounts  and  other  distribution
services.  For the fiscal years ended October 31, 1998, 1997, and 1996, Seligman
Services  received  distribution and service fees from each Fund pursuant to its
12b-1 Plan as follows:

     Fund                                       1998        1997        1996
     ----                                       ----        ----        ----
     International Fund                      $ 20,727    $ 18,533    $ 15,809
     Emerging Markets Growth Fund               6,219       5,900         568*
     Global Growth Opportunities Fund           2,295       6,876       3,281
     Global Smaller Companies Fund             11,939      45,222      25,474
     Global Technology Fund                    26,484      86,328      36,015

*    For the period 5/28/96 (commencement of operations) to 10/31/96.

                    Brokerage Allocation and Other Practices


Brokerage Transactions

Seligman  and HIML  will seek the most  favorable  price  and  execution  in the
purchase and sale of portfolio  securities of each Fund. When two or more of the
investment  companies in the Seligman Group or other investment advisory clients
of Seligman  or  Henderson  desire to buy or sell the same  security at the same
time, the securities purchased or sold are allocated by Seligman or Henderson in
a manner believed to be equitable to each.  There may be possible  advantages or
disadvantages  of  such  transactions  with  respect  to  price  or the  size of
positions readily obtainable or saleable.

In  over-the-counter  markets,  the Funds deal with  responsible  primary market
makers unless a more favorable  execution or price is believed to be obtainable.
Each  Fund may buy  securities  from or sell  securities  to  dealers  acting as
principal,   except  dealers  with  which  its  directors  and/or  officers  are
affiliated.

For the fiscal years ended  October 31,  1998,  1997,  and 1996,  the Funds paid
total  brokerage  commissions to others for execution,  research and statistical
services in the following amounts:

                                          Total Brokerage Commissions Paid
                                          --------------------------------
Fund                                    1998            1997            1996
- ----                                    ----            ----            ----
International Fund                    $ 344,771      $ 409,545       $ 337,391
Emerging Markets Growth Fund            392,683        419,950         151,798*
Global Growth Opportunities Fund        378,349        585,985         635,930
Global Smaller Companies Fund         1,801,953      1,910,979       1,558,525
Global Technology Fund                1,234,913        936,431       1,072,773

*    For the period 5/28/96 (commencement of operations) to 10/31/96.

Commissions

For the fiscal years ended October 31, 1998,  1997,  and 1996,  the Fund did not
execute  any  portfolio  transactions  with,  and  therefore  did  not  pay  any
commissions to, any broker affiliated with either the Fund,  Seligman,  HIML, or
Seligman Advisors.

Brokerage Selection

Consistent  with seeking the most  favorable  price and execution when buying or
selling portfolio  securities,  Seligman may give consideration to the research,
statistical,  and other services furnished by brokers or dealers to Seligman for
its use,  as well as the  general  attitude  toward and  support  of  investment
companies  

                                       24

<PAGE>

demonstrated  by such brokers or dealers.  Such  services  include  supplemental
investment research,  analysis, and reports concerning issuers,  industries, and
securities  deemed by  Seligman  to be  beneficial  to the Funds.  In  addition,
Seligman is  authorized  to place orders with  brokers who provide  supplemental
investment and market research and security and economic  analysis  although the
use of such brokers may result in a higher brokerage charge to the Fund than the
use of brokers  selected solely on the basis of seeking the most favorable price
and  execution and although such research and analysis may be useful to Seligman
in connection with its services to clients other than the Funds.

Directed Brokerage

During the Funds'  fiscal  year  ended  October  31,  1998,  neither  the Funds,
Seligman, or HIML directed any of the Funds' brokerage  transactions to a broker
because of research services provided.

   
Regular Broker-Dealers

During the Funds' fiscal year ended October 31, 1998,  the Funds did not acquire
securities  of any of its  regular  brokers or dealers (as defined in Rule 10b-1
under the 1940 Act) or of their parents.
    

                       Capital Stock and Other Securities

   
Capital Stock

Seligman Henderson Global Fund Series, Inc. is authorized to issue 2,000,000,000
shares of common stock,  each with a par value of $.001 each,  divided into five
different  series  (which  represent  each of the  Funds).  Each  Fund has three
classes, designated Class A, Class B, and Class D shares. Each share of a Fund's
Class A, Class B, and Class D capital stock is equal as to earnings, assets, and
voting  privileges,  except that each class bears its own separate  distribution
and,  potentially,  certain other class expenses and has exclusive voting rights
with respect to any matter to which a separate  vote of any class is required by
the 1940 Act or Maryland law.  Seligman  Henderson Global Fund Series,  Inc. has
adopted a multiclass  plan pursuant to Rule 18f-3 under the 1940 Act  permitting
the issuance and sale of multiple  classes of common stock.  In accordance  with
the Articles of Incorporation, the Board of Directors may authorize the creation
of additional classes of common stock with such characteristics as are permitted
by the  multiclass  plan and Rule 18f-3.  The 1940 Act requires  that where more
than one class  exists,  each class must be preferred  over all other classes in
respect  of  assets  specifically  allocated  to such  class.  All  shares  have
noncumulative  voting  rights for the election of  directors.  Each  outstanding
share is fully paid and non-assessable,  and each is freely transferable.  There
are no liquidation, conversion, or preemptive rights.
    

Other Securities

Seligman Henderson Global Fund Series,  Inc. has no authorized  securities other
than common stock.

                   Purchase, Redemption, and Pricing of Shares

Purchase of Shares

Class A

Class A shares may be  purchased  at a price  equal to the next  determined  net
asset value per share, plus an initial sales charge.

Purchases  of Class A shares by a "single  person"  (as  defined  below)  may be
eligible for the following reductions in initial sales charges:

                                       25

<PAGE>

Volume  Discounts  are provided if the total  amount  being  invested in Class A
shares of a Fund  alone,  or in any  combination  of shares of the other  mutual
funds in the Seligman Group which are sold with an initial sales charge, reaches
levels indicated in the sales charge schedule set forth in the Prospectus.

The Right of  Accumulation  allows an  investor  to  combine  the  amount  being
invested  in Class A shares of a Fund and  shares of the other  Seligman  mutual
funds sold with an initial sales charge with the total net asset value of shares
of those mutual funds  already owned that were sold with an initial sales charge
and the total net asset value of shares of Seligman Cash  Management  Fund which
were acquired  through an exchange of shares of another  Seligman mutual fund on
which there was an initial  sales  charge at the time of  purchase to  determine
reduced  sales charges in accordance  with the schedule in the  prospectus.  The
value of the  shares  owned,  including  the value of shares  of  Seligman  Cash
Management  Fund  acquired in an exchange of shares of another  Seligman  mutual
fund on which there was an initial  sales charge at the time of purchase will be
taken into account in orders placed through a dealer,  however, only if Seligman
Advisors  is  notified  by an  investor  or a dealer of the amount  owned by the
investor  at  the  time  the  purchase  is  made  and  is  furnished  sufficient
information to permit confirmation.

A Letter of Intent allows an investor to purchase Class A shares over a 13-month
period at reduced  initial sales charges in accordance  with the schedule in the
Prospectus,  based on the  total  amount  of Class A shares of the Fund that the
letter states the investor intends to purchase plus the total net asset value of
shares that were sold with an initial sales charge of the other Seligman  mutual
funds  already  owned and the total net asset value of shares of  Seligman  Cash
Management  Fund which were  acquired  through an  exchange of shares of another
Seligman  mutual fund on which there was an initial  sales charge at the time of
purchase.  Reduced  sales  charges  also may apply to  purchases  made  within a
13-month  period starting up to 90 days before the date of execution of a letter
of intent.

   
CDSC Applicable to Class A Shares.  Class A shares purchased  without an initial
sales  charge  in  accordance  with the  sales  charge  schedule  in the  Funds'
Prospectus,  or pursuant to a Volume Discount, Right of Accumulation,  or Letter
of Intent  are  subject to a CDSC of 1% on  redemptions  of such  shares  within
eighteen months of purchase. Employee benefit plans eligible for net asset value
sales (as described  below) may be subject to a CDSC of 1% for  terminations  at
the plan level only, on redemptions of shares  purchased  within eighteen months
prior to plan  termination.  The 1% CDSC  will be  waived  on  shares  that were
purchased   through  Morgan  Stanley  Dean  Witter  &  Co.  by  certain  Chilean
institutional  investors (i.e. pension plans,  insurance  companies,  and mutual
funds).  Upon redemption of such shares within an eighteen month period,  Morgan
Stanley Dean Witter will reimburse  Seligman  Advisors a pro rata portion of the
fee it received from Seligman Advisors at the time of sale of such shares.

See "CDSC  Waivers"  below for other  waivers which may be applicable to Class A
shares.
    

Persons  Entitled To  Reductions.  Reductions  in initial sales charges apply to
purchases  of Class A shares  by a "single  person,"  including  an  individual;
members of a family  unit  comprising  husband,  wife and minor  children;  or a
trustee or other fiduciary  purchasing for a single fiduciary account.  Employee
benefit plans qualified under Section 401 of the Internal  Revenue Code of 1986,
as amended,  organizations  tax exempt  under  Section  501(c)(3) or (13) of the
Internal  Revenue Code, and  non-qualified  employee  benefit plans that satisfy
uniform criteria are considered  "single persons" for this purpose.  The uniform
criteria are as follows:

1.   Employees must  authorize the employer,  if requested by a Fund, to receive
     in bulk and to  distribute to each  participant  on a timely basis the Fund
     prospectus, reports, and other shareholder communications.

2.   Employees participating in a plan will be expected to make regular periodic
     investments  (at  least  annually).  A  participant  who fails to make such
     investments  may be dropped  from the plan by the  employer  or the Fund 12
     months and 30 days after the last regular  investment  in his  account.  In
     such  event,  the  dropped  participant  would lose the  discount  on share
     purchases to which the plan might then be entitled.


                                       26

<PAGE>

3.   The  employer  must  solicit its  employees  for  participation  in such an
     employee  benefit  plan or  authorize  and assist an  investment  dealer in
     making enrollment solicitations.

Eligible  Employee  Benefit Plans.  The table of sales charges in the Prospectus
applies to sales to "eligible  employee benefit plans," except that the Fund may
sell shares at net asset value to "eligible  employee  benefit plans" which have
at least (1) $500,000  invested in the Seligman  Group of mutual funds or (2) 50
eligible employees to whom such plan is made available.  Such sales must be made
in connection with a payroll  deduction  system of plan funding or other systems
acceptable  to  Seligman  Data  Corp.,  the Funds'  shareholder  service  agent.
"Eligible  employee benefit plan" means any plan or arrangement,  whether or not
tax qualified,  which provides for the purchase of Fund shares.  Sales of shares
to such plans must be made in connection with a payroll deduction system of plan
funding or other system acceptable to Seligman Data Corp.

Such  sales are  believed  to require  limited  sales  effort and  sales-related
expenses and  therefore  are made at net asset value.  Contributions  or account
information for plan  participation  also should be transmitted to Seligman Data
Corp.  by methods  which it  accepts.  Additional  information  about  "eligible
employee  benefit  plans" is  available  from  financial  advisors  or  Seligman
Advisors.

Further  Types of  Reductions.  Class A shares  may also be  issued  without  an
initial sales charge to any registered unit investment trust which is the issuer
of periodic payment plan certificates, the net proceeds of which are invested in
Fund shares;  to separate  accounts  established  and maintained by an insurance
company which are exempt from  registration  under Section  3(c)(11) of the 1940
Act; to registered  representatives  and employees  (and their spouses and minor
children) of any dealer that has a sales  agreement with Seligman  Advisors;  to
financial  institution  trust  departments;  to registered  investment  advisers
exercising  discretionary  investment  authority with respect to the purchase of
Fund shares; to accounts of financial institutions or broker/dealers that charge
account management fees,  provided Seligman or one of its affiliates has entered
into  an  agreement  with  respect  to  such  accounts;  pursuant  to  sponsored
arrangements with organizations  which make  recommendations to, or permit group
solicitations of, its employees,  members or participants in connection with the
purchase of shares of a Fund;  to other  investment  companies  in the  Seligman
Group in connection with a deferred fee arrangement for outside  directors;  and
to "eligible  employee benefit plans" which have at least (1) $500,000  invested
in the Seligman  mutual funds or (2) 50 eligible  employees to whom such plan is
made available.

Class B

Class B shares may be  purchased  at a price  equal to the next  determined  net
asset  value,  without  an initial  sales  charge.  However,  Class B shares are
subject to a CDSC if the shares are  redeemed  within six years of  purchase  at
rates set forth in the table below,  charged as a percentage  of the current net
asset value or the original purchase price, whichever is less.

Years Since Purchase                                         CDSC
- --------------------                                         ----

Less than 1 year ..........................................   5%
1 year or more but less than 2 years ......................   4%
2 years or more but less than 3 years .....................   3%
3 years or more but less than 4 years .....................   3%
4 years or more but less than 5 years .....................   2%
5 years or more but less than 6 years .....................   1%
6 years or more ...........................................   0%

Class D

Class D shares may be  purchased  at a price  equal to the next  determined  net
asset  value,  without  an initial  sales  charge.  However,  Class D shares are
subject to a CDSC of 1% if the shares are redeemed  within one year of purchase,
charged as a percentage of the current net asset value or the original  purchase
price, whichever is less.

                                       27

<PAGE>

Systematic Withdrawals. Class B and Class D shareholders who reinvest both their
dividends  and capital gain  distributions  to purchase  additional  shares of a
Fund,  may use the  Systematic  Withdrawal  Plan to  withdraw up to 12% and 10%,
respectively,  of the value of their accounts per year without the imposition of
a CDSC.  Account value is determined as of the date the  systematic  withdrawals
begin.

CDSC  Waivers.  The CDSC on  Class B and  Class D shares  (and  certain  Class A
shares,  as  discussed  above)  will  be  waived  or  reduced  in the  following
instances:

(1)  on  redemptions  following the death or  disability  (as defined in Section
     72(m)(7) of the  Internal  Revenue  Code) of a  shareholder  or  beneficial
     owner;

(2)  in connection with (1) distributions  from retirement plans qualified under
     Section  401(a) of the  Internal  Revenue  Code when such  redemptions  are
     necessary  to  make  distributions  to  plan  participants  (such  payments
     include,  but  are  not  limited  to,  death,  disability,  retirement,  or
     separation of service),  (2)  distributions  from a custodial account under
     Section  403(b)(7)  of the  Internal  Revenue  Code or an IRA due to death,
     disability,  minimum  distribution  requirements after attainment of age 70
     1/2 or, for accounts  established  prior to January 1, 1998,  attainment of
     age 59 1/2, and (3) a tax-free return of an excess contribution to an IRA;

(3)  in whole or in part, in connection  with shares sold to current and retired
     Directors of the Funds;

(4)  in whole or in part, in connection  with shares sold to any state,  county,
     or city or any instrumentality,  department,  authority, or agency thereof,
     which is prohibited by applicable  investment laws from paying a sales load
     or commission in connection with the purchase of any registered  investment
     management company;

(5)  in whole or in part, in connection with systematic withdrawals;

(6)  in connection with  participation  in the Merrill Lynch Small Market 401(k)
     Program.

If, with respect to a redemption of any Class A, Class B, or Class D shares sold
by a dealer, the CDSC is waived because the redemption qualifies for a waiver as
set forth  above,  the dealer  shall remit to Seligman  Advisors  promptly  upon
notice,  an amount  equal to the  payment  or a portion of the  payment  made by
Seligman Advisors at the time of sale of such shares.

Payment in Securities.  In addition to cash, the Funds may accept  securities in
payment for Fund shares sold at the applicable  public offering price (net asset
value and, if applicable, any sales charge), although the Funds do not presently
intend to accept securities in payment for Fund shares.  Generally,  a Fund will
only consider  accepting  securities (l) to increase its holdings in a portfolio
security,  or (2) if  Seligman  determines  that the  offered  securities  are a
suitable  investment  for the  Fund and in a  sufficient  amount  for  efficient
management. Although no minimum has been established, it is expected that a Fund
would not  accept  securities  with a value of less than  $100,000  per issue in
payment for shares. A Fund may reject in whole or in part offers to pay for Fund
shares with securities, may require partial payment in cash for applicable sales
charges, and may discontinue  accepting securities as payment for Fund shares at
any time without  notice.  The Funds will not accept  restricted  securities  in
payment  for  shares.  The Funds will value  accepted  securities  in the manner
provided for valuing portfolio securities.

Fund Reorganizations

Class A shares may be issued without an initial sales charge in connection  with
the acquisition of cash and securities owned by other investment companies.  Any
CDSC will be waived in connection with the redemption of shares of a Fund if the
Fund is combined with another  Seligman  mutual fund,  or in  connection  with a
similar reorganization transaction.


                                       28

<PAGE>

Offering Price

When you buy or sell Fund shares, you do so at the Class's net asset value (NAV)
next calculated  after Seligman  Advisors  accepts your request.  Any applicable
sales charge will be added to the purchase price for Class A shares.

NAV per share of each class of a Fund is  determined  as of the close of regular
trading on the New York Stock Exchange  (normally,  4:00 p.m.  Eastern time), on
each day that the NYSE is open for business. The NYSE is currently closed on New
Year's Day, Martin Luther King, Jr. Day, Presidents' Day, Good Friday,  Memorial
Day,  Independence  Day, Labor Day,  Thanksgiving Day, and Christmas Day. A Fund
will  also  determine  NAV for  each  class  on each  day in  which  there  is a
sufficient degree of trading in the Fund's portfolio  securities that the NAV of
Fund shares might be materially affected.  NAV per share for a class is computed
by dividing such class's share of the value of the net assets of the Fund (i.e.,
the value of its assets less  liabilities)  by the total  number of  outstanding
shares of such class.  All expenses of the Fund,  including the management  fee,
are accrued daily and taken into account for the purpose of determining NAV. The
NAV of Class B and Class D shares will  generally be lower than the NAV of Class
A shares as a result of the higher 12b-1 fees with respect to such shares.

   
Portfolio  securities,  including open short positions and options written,  are
valued at the last sale price on the securities exchange or securities market on
which such  securities  primarily  are  traded.  Securities  traded on a foreign
exchange  or  over-the-counter  market are valued at the last sales price on the
primary exchange or market on which they are traded.  United Kingdom  securities
and  securities  for which there are not recent  sales  transactions  are valued
based on quotations  provided by primary market maker in such securities.  Other
securities  not listed on an exchange or  securities  market,  or  securities in
which there were no  transactions,  are valued at the average of the most recent
bid and asked price,  except in the case of open short positions where the asked
price is  available.  Any  securities  or other assets for which  recent  market
quotations  are not readily  available are valued at fair value as determined in
accordance  with  procedures  approved  by the  Board of  Directors.  Short-term
obligations with less than sixty days remaining to maturity are generally valued
at amortized cost. Short-term obligations with more than sixty days remaining to
maturity will be valued at current  market value until the sixtieth day prior to
maturity,  and will then be valued on an amortized cost basis based on the value
on such date unless the Board determines that this amortized cost value does not
represent  fair  market  value.
    

Generally,  trading in foreign securities,  as well as US Government securities,
money market instruments and repurchase agreements,  is substantially  completed
each day at various times prior to the close of regular trading on the NYSE. The
values of such securities used in computing the net asset value of the shares of
each Fund are determined as of such times.  Foreign currency  exchange rates are
also generally determined prior to the close of regular trading on the NYSE.

For purposes of determining  the net asset value per share of a Fund, all assets
and liabilities initially expressed in foreign currencies will be converted into
US  dollars  at the mean  between  the bid and offer  prices of such  currencies
against US dollars  quoted by a major bank that is a regular  participant in the
foreign  exchange  market or on the basis of a pricing  service  that takes into
account the quotes provided by a number of such major banks.


                                       29

<PAGE>

Specimen Price Make-Up

Under the  current  distribution  arrangements  between  the Funds and  Seligman
Advisors,  Class A shares are sold with a maximum  initial sales charge of 4.75%
and Class B and Class D shares are sold at NAV(1).  Using  each  Class's  NAV at
October  31,  1998,  the  maximum  offering  price of each  Fund's  shares is as
follows:

<TABLE>
<CAPTION>
                                     Class A

                                                                       Global          Global
                                                       Emerging        Growth          Smaller          Global
                                      International     Markets    Opportunities      Companies       Technology
                                          Fund           Fund           Fund            Fund             Fund
                                       ---------       --------       ---------       ---------       ---------
<S>                                    <C>             <C>            <C>             <C>             <C>      
Net asset value per share .........    $   17.75       $   5.18       $    9.62       $   14.11       $   12.48
Maximum sales charge
  (4.75% of offering price) .......          .89            .26             .48             .70             .62
                                       ---------       --------       ---------       ---------       ---------
Offering price to public ..........    $   18.64       $   5.44       $   10.10       $   14.81       $   13.10
                                       =========       ========       =========       =========       =========
</TABLE>

<TABLE>
<CAPTION>
                                     Class B
   
                                                                       Global          Global
                                                       Emerging        Growth          Smaller          Global
                                      International     Markets    Opportunities      Companies       Technology
                                          Fund           Fund           Fund            Fund             Fund
                                       ---------       --------       ---------       ---------       ---------
<S>                                    <C>             <C>            <C>             <C>             <C>      
Net asset value and
  offering price per share(1) .....    $   16.93       $   5.09       $    9.40       $   13.46       $   11.98
                                       =========       ========       =========       =========       =========
</TABLE>
    
<TABLE>
<CAPTION>
                                     Class D

                                                                       Global          Global
                                                       Emerging        Growth          Smaller          Global
                                      International     Markets    Opportunities      Companies       Technology
                                          Fund           Fund           Fund            Fund             Fund
                                       ---------       --------       ---------       ---------       ---------
<S>                                    <C>             <C>            <C>             <C>             <C>      
Net asset value and
  Offering price per share(1) .....    $   16.93       $   5.09       $    9.40       $   13.47       $   11.96
                                       =========       ========       =========       =========       =========
</TABLE>

- ----------
(1) Class B shares  are  subject to a CDSC  declining  from 5% in the first year
after purchase to 0% after six years. Class D shares are subject to a CDSC of 1%
on redemptions within one year of purchase.

Redemption in Kind

The  procedures  for selling Fund shares under  ordinary  circumstances  are set
forth in the Prospectus. In unusual circumstances,  payment may be postponed, or
the right of  redemption  postponed  for more than seven  days,  if the  orderly
liquidation  of  portfolio  securities  is  prevented  by  the  closing  of,  or
restricted  trading  on, the NYSE  during  periods of  emergency,  or such other
periods  as ordered by the  Securities  and  Exchange  Commission.  Under  these
circumstances, redemption proceeds may be made in securities. If payment is made
in securities,  a shareholder may incur brokerage  expenses in converting  these
securities to cash.

                              Taxation of the Funds

Foreign Income Taxes. Investment income received by the Fund from sources within
foreign countries may be subject to foreign income taxes withheld at source. The
United  States has entered into tax treaties with many foreign  countries  which
entitle the Fund to a reduced rate of such taxes or exemption from taxes on such


                                       30

<PAGE>

income.  It is  impossible  to determine  the  effective  rate of foreign tax in
advance  since the amount of each Fund's  assets to be invested  within  various
countries is not known.

US Federal  Income  Taxes.  Each Fund is  qualified  and  intends to continue to
qualify for each  taxable  year for tax  treatment  as a  "regulated  investment
company"  under the  Internal  Revenue  Code.  Qualification  relieves a Fund of
Federal  income tax  liability on that part of its net  ordinary  income and net
realized capital gains which it pays out to its shareholders. Such qualification
does  not,  of  course,  involve  governmental   supervision  of  management  or
investment practices or policies. Investors should consult their own counsel for
a complete  understanding  of the  requirements  a Fund must meet to qualify for
such  treatment.  The  information set forth in the Prospectus and the following
discussion  relate  solely  to the US  Federal  income  taxes on  dividends  and
distributions  by a Fund and  assumes  that each Fund  qualifies  as a regulated
investment  company.  Investors  should  consult  their own  counsel for further
details,  including their possible entitlement to foreign tax credits that might
be "passed through" to them under the rules described below, and the application
of state and local tax laws to his or her particular situation.

Each Fund intends to declare and distribute  dividends in the amounts and at the
times necessary to avoid the application of the 4% Federal excise tax imposed on
certain undistributed income of regulated investment  companies.  Each Fund will
be required to pay the 4% excise tax to the extent it does not distribute to its
shareholders  during any calendar  year at least 98% of its ordinary  income for
the calendar  year plus 98% of its capital gain net income for the twelve months
ended October 31 of such year. Certain  distributions of the Fund which are paid
in January of a given year but are  declared in the prior  October,  November or
December to  shareholders  of record as of a specified  date during such a month
will be treated as having been  distributed to shareholders  and will be taxable
to shareholders as if received in December.

Dividends  of  net  ordinary  income  and  distributions  of  any  net  realized
short-term  capital gain are taxable to shareholders as ordinary  income.  Since
each Fund expects to derive a substantial portion of its gross income (exclusive
of capital gains) from sources other than qualifying  dividends,  it is expected
that only a portion of each Fund's dividends or  distributions  will qualify for
the dividends received deduction for corporations.

The excess of net long-term capital gains over the net short-term capital losses
realized and distributed by each Fund to its shareholders will be taxable to the
shareholders  as long-term  capital gains,  irrespective of the length of time a
shareholder may have held Fund shares.  Individual  shareholders will be subject
to federal income tax on net capital gain at a maximum rate of 20% in respect of
shares held for more than one year. Net capital gain of a corporate  shareholder
is taxed at the same rate as  ordinary  income.  Any  dividend  or  distribution
received by a shareholder on shares of a Fund shortly after the purchase of such
shares  will have the effect of  reducing  the net asset value of such shares by
the amount of such  dividend  or  distribution.  Furthermore,  such  dividend or
distribution,  although in effect a return of  capital,  would be taxable to the
shareholder as described  above.  If a shareholder has held shares in a Fund for
six months or less and during that period has received a distribution taxable to
the  shareholder  as a  long-term  capital  gain,  any  loss  recognized  by the
shareholder  on the sale of those shares during that period will be treated as a
long-term capital loss to the extent of the distribution.

Dividends and  distributions  are taxable in the manner discussed  regardless of
whether they are paid to the shareholder in cash or are reinvested in additional
shares of a Fund's common stock.

       

Income received by a Fund from sources within various  foreign  countries may be
subject to foreign  income tax. If more than 50% of the value of a Fund's  total
assets at the close of its taxable year  consists of the stock or  securities of
foreign corporations,  such Fund may elect to "pass through" to its shareholders
the amount of foreign income taxes paid by such Fund. Pursuant to such election,
shareholders would be required:  (i) to include in gross income, even though not
actually  received,  their  respective  pro-rata shares of a Fund's gross income
from foreign sources;  and (ii) either to deduct their pro-rata share of foreign
taxes in computing their taxable  income,  or to use such share as a foreign tax
credit against Federal income tax (but not both). No deduction for foreign taxes
could be claimed by a shareholder who does not itemize deductions.


                                       31

<PAGE>

Shareholders  who  choose to  utilize a credit  (rather  than a  deduction)  for
foreign taxes will be subject to the  limitation  that the credit may not exceed
the  shareholder's US tax (determined  without regard to the availability of the
credit) attributable to his or her total foreign source taxable income. For this
purpose,  the portion of  dividends  and  distributions  paid by a Fund from its
foreign  source  income will be treated as foreign  source  income.  Each Fund's
gains from the sale of securities  will  generally be treated as derived from US
sources, however, and certain foreign currency gains and losses likewise will be
treated as derived from US sources.  The limitation on the foreign tax credit is
applied  separately to foreign source  "passive  income," such as the portion of
dividends  received from a Fund which  qualifies as foreign  source  income.  In
addition,  the  foreign  tax  credit  is  allowed  to  offset  only  90%  of the
alternative  minimum tax imposed on  corporations  and  individuals.  Because of
these  limitations,  shareholders  may be unable to claim a credit  for the full
amount of their proportionate shares of the foreign income taxes paid by a Fund.

Each Fund intends for each taxable year to meet the  requirements of the Code to
"pass through" to its  shareholders  foreign income taxes paid, but there can be
no  assurance  that a Fund  will  be  able to do so.  Each  shareholder  will be
notified  within  60 days  after  the  close of each  taxable  year of each Fund
whether the foreign  taxes paid by such Fund will "pass  through" for that year,
and, if so, the amount of each shareholder's  pro-rata share (by country) of (i)
the foreign taxes paid, and (ii) such Fund's gross income from foreign  sources.
Of course,  shareholders  who are not liable for Federal  income taxes,  such as
retirement  plans  qualified under Section 401 of the Code, will not be affected
by any such "pass through" of foreign tax credits.

Investments in Passive Foreign Investment Companies.  If a Fund purchases shares
in  certain  foreign  investment  entities,  referred  to  as  "passive  foreign
investment  companies," the Fund itself may be subject to US Federal income tax,
and an additional charge in the nature of interest,  on a portion of any "excess
distribution"  from such  company or gain from the  disposition  of such shares,
even if the  distribution  or gain is  paid by such  Fund as a  dividend  to its
shareholders.  If a Fund  were  able  and  elected  to treat a  passive  foreign
investment  company as a  "qualified  electing  fund," in lieu of the  treatment
described above, such Fund would be required each year to include in income, and
distribute to shareholders in accordance with the distribution  requirements set
forth above,  its pro rata share of the ordinary  earnings and net capital gains
of the company, whether or not distributed to such Fund.

Certain Foreign Currency  Transactions.  Gains or losses attributable to foreign
currency contracts,  or to fluctuations in exchange rates that occur between the
time a Fund accrues  interest or other  receivables or accrues expenses or other
liabilities  denominated  in a foreign  currency and the time the Fund  actually
collects  such  receivables  or pays such  liabilities  are  treated as ordinary
income or  ordinary  loss.  Similarly,  gains or losses on  disposition  of debt
securities denominated in a foreign currency attributable to fluctuations in the
value of the foreign  currency  between the date of  acquisition of the security
and the date of  disposition  also are treated as ordinary  gain or loss.  These
gains or losses  increase  or  decrease  the amount of a Fund's  net  investment
income available to be distributed to its shareholders as ordinary income.

Options Transactions.  A special  "marked-to-market" system governs the taxation
of "section 1256 contracts," which include certain listed options. Each Fund may
invest in such section 1256 contracts.  In general, gain or loss on section 1256
contracts will be taken into account for tax purposes when actually realized. In
addition,  any section 1256  contracts held at the end of a taxable year will be
treated  as sold at fair  market  value  (that  is,  marked-to-market),  and the
resulting gain or loss will be recognized for tax purposes.  In general, gain or
loss recognized by a Fund on the actual or deemed  disposition of a section 1256
contract  will be treated as 60% long-term  and 40%  short-term  capital gain or
loss,  regardless  of the period of time the section  1256  contract is actually
held by such Fund.  Each Fund can elect to exempt  its  section  1256  contracts
which are part of a "mixed" straddle from the application of section 1256.

Shareholders  are urged to consult their tax advisors  concerning  the effect of
federal income taxes in their individual circumstances.

Unless a shareholder includes a certified taxpayer identification number (social
security number for  individuals) on the account  application and certifies that
the shareholder is not subject to backup withholding,  

                                       32

<PAGE>

the Funds are  required  to  withhold  and remit to the US Treasury a portion of
distributions  and other  reportable  payments to the  shareholder.  The rate of
backup withholding is 31%.  Shareholders should be aware that, under regulations
promulgated by the Internal  Revenue  Service,  a Fund may be fined $50 annually
for each  account for which a certified  taxpayer  identification  number is not
provided.  In the  event  that  such a fine is  imposed,  the Fund may  charge a
service fee of up to $50 that may be deducted from the shareholder's account and
offset against any undistributed  dividends and capital gain distributions.  The
Funds  also  reserve  the  right  to close  any  account  which  does not have a
certified taxpayer identification number.

                                  Underwriters

Distribution of Securities

Seligman Henderson Global Fund Series, Inc. and Seligman Advisors are parties to
a Distributing  Agreement  dated January 1, 1993 under which  Seligman  Advisors
acts as the exclusive agent for  distribution  of shares of the Funds.  Seligman
Advisors  accepts  orders for the  purchase  of Fund  shares,  which are offered
continuously.  As general  distributor  of the Fund's  capital  stock,  Seligman
Advisors allows  reallowances to all dealers on sales of Class A shares,  as set
forth above under "Dealer  Reallowances."  Seligman Advisors retains the balance
of sales charges and any CDSC paid by investors.

   
Total sales charges paid by  shareholders of Class A shares of the Funds for the
fiscal years ended October 31, 1998,  1997, and 1996 are shown below, as well as
the amounts of Class A sales charges that were retained by Seligman Advisors:

<TABLE>
<CAPTION>
                                      1998

                                                                             Amount of Class A
                                                   Total Sales Charges    Sales Charges Retained
                                                  Paid by Shareholders              by
       Fund                                         On Class A Shares        Seligman Advisors
       ----                                         -----------------        -----------------
<S>                                                    <C>                         <C>    
       International Fund                               $117,729                   $13,622
       Emerging Markets Growth Fund                      101,075                    11,459
       Global Growth Opportunities Fund                  176,957                    19,994
       Global Smaller Companies Fund                     848,066                    94,085
       Global Technology Fund                          1,099,378                   121,127
</TABLE>
    

<TABLE>
<CAPTION>
                                      1997

                                                                             Amount of Class A
                                                   Total Sales Charges    Sales Charges Retained
                                                  Paid by Shareholders              by
       Fund                                         On Class A Shares        Seligman Advisors
       ----                                         -----------------        -----------------
<S>                                                    <C>                         <C>    
       International Fund                               $152,666                   $17,927
       Emerging Markets Growth Fund                      622,098                    69,894
       Global Growth Opportunities Fund                  403,744                    44,965
       Global Smaller Companies Fund                   3,632,126                   400,220
       Global Technology Fund                          1,923,733                   210,590
</TABLE>

                                       33

<PAGE>

<TABLE>
<CAPTION>
                                      1996

                                                                             Amount of Class A
                                                   Total Sales Charges    Sales Charges Retained
                                                  Paid by Shareholders              by
       Fund                                         On Class A Shares        Seligman Advisors
       ----                                         -----------------        -----------------
<S>                                                    <C>                         <C>    
       International Fund                               $374,305                   $42,719
       Emerging Markets Growth Fund*                     780,777                    31,761
       Global Growth Opportunities Fund                4,381,479                   201,990
       Global Smaller Companies Fund                   7,309,493                   810,616
       Global Technology Fund                          8,466,372                   930,729
</TABLE>

       *  For the period 5/28/96 (commencement of operations) to 10/31/96.

Compensation

Seligman  Advisors,  which is an  affiliated  person  of  Seligman,  which is an
affiliated  person of the Funds,  received the following  commissions  and other
compensation from the Funds during fiscal year ended October 31, 1998:

<TABLE>
<CAPTION>
                                                               Compensation on
                                         Net Underwriting      Redemptions and
                                           Discounts and         Repurchases
                                            Commissions        (CDSC on Class A
                                          (Class A Sales         and Class D         Brokerage           Other
Fund                                     Charge Retained)         Retained)         Commissions      Compensation(1)
- ----                                     ----------------         ---------         -----------      ---------------
<S>                                          <C>                   <C>                 <C>               <C>   
International Fund                           $13,622               $ 7,109             $--               $7,600
Emerging Markets Growth Fund                  11,459                16,136              --                8,034
Global Growth Opportunities Fund              19,994                15,178              --                8,743
Global Smaller Companies Fund                 94,085               118,278              --               82,534
Global Technology Fund                       121,127                42,732              --               28,886
</TABLE>

     (1)  Seligman Advisors has sold its rights to collect the distribution fees
          paid by each Fund in respect of Class B shares and any CDSC imposed on
          redemptions of Class B shares to FEP Capital, L.P., in connection with
          an arrangement with FEP Capital,  L.P. as discussed above under "12b-1
          Plans".  In  connection  with  this  arrangement,   Seligman  Advisors
          receives payments from FEP Capital, L.P. based on the value of Class B
          shares sold. Such payments received for fiscal year 1998 are reflected
          in the table.

Other Payments

Seligman  Advisors shall pay  broker/dealers,  from its own resources,  a fee on
purchases of Class A shares of  $1,000,000  or more (NAV sales),  calculated  as
follows:  1.00% of NAV sales up to but not  including  $2  million;  .80% of NAV
sales from $2 million up to but not including $3 million; .50% of NAV sales from
$3 million up to but not  including  $5  million;  and .25% of NAV sales from $5
million and above.  The calculation of the fee will be based on assets held by a
"single  person,"  including an individual,  members of a family unit comprising
husband, wife and minor children purchasing securities for their own account, or
a trustee or other fiduciary purchasing for a single fiduciary account or single
trust.  Purchases made by a trustee or other  fiduciary for a fiduciary  account
may not be  aggregated  purchases  made on  behalf  of any  other  fiduciary  or
individual account.

   
Seligman Advisors shall also pay broker/dealers,  from its own resources,  a fee
on assets of certain  investments in Class A shares of the Seligman mutual funds
participating  in an "eligible  employee  benefit plan" that are attributable to
the particular broker/dealer. The shares eligible for the fee are those on which
an initial sales charge was not paid because either the  participating  eligible
employee benefit plan has at least (1) $500,000  invested in the Seligman mutual
funds or (2) 50 eligible employees to whom such plan is made available.  Class A
shares  representing  only an initial  purchase of Seligman Cash Management Fund
are not eligible for 
    

                                       34

<PAGE>

   
the fee.  Such shares will become  eligible for the fee once they are  exchanged
for shares of another  Seligman  mutual fund. The payment is based on cumulative
sales for each Plan  during a single  calendar  year,  or portion  thereof.  The
payment  schedule,  for each calendar year, is as follows:  1.00% of sales up to
but not  including  $2  million;  .80% of sales  from $2  million  up to but not
including $3 million;  .50% of sales from $3 million up to but not  including $5
million; and .25% of sales from $5 million and above.
    

Seligman  Advisors may from time to time assist  dealers by, among other things,
providing  sales  literature  to, and  holding  informational  programs  for the
benefit  of,  dealers'  registered   representatives.   Dealers  may  limit  the
participation of registered  representatives in such  informational  programs by
means of sales  incentive  programs which may require the sale of minimum dollar
amounts of shares of Seligman mutual funds.  Seligman  Advisors may from time to
time pay a bonus or other  incentive to dealers that sell shares of the Seligman
mutual funds. In some instances, these bonuses or incentives may be offered only
to certain dealers which employ registered  representatives who have sold or may
sell a  significant  amount of shares of the Fund and/or  certain  other  mutual
funds managed by the Manager  during a specified  period of time.  Such bonus or
other  incentive  may take the form of payment  for travel  expenses,  including
lodging,  incurred  in  connection  with trips  taken by  qualifying  registered
representatives  and members of their  families to places  within or outside the
United States. The cost to Seligman Advisors of such promotional  activities and
payments  shall be  consistent  with the rules of the  National  Association  of
Securities Dealers, Inc., as then in effect.

                         Calculation of Performance Data

Class A

The average  annual total returns for the one-year and  five-year  periods ended
October 31, 1998 and for the period April 7, 1992  (inception)  through  October
31, 1998 for the Class A shares of the International  Fund were 1.46%, 6.12% and
9.34%, respectively.

The average annual total returns for the one-year  period ended October 31, 1998
and for the period May 28,  1996  (inception)  through  October 31, 1998 for the
Class A shares of the Emerging  Markets  Growth Fund were (32.81%) and (14.14%),
respectively.

The average annual total returns for the one-year  period ended October 31, 1998
and for the period November 1, 1995 (inception) through October 31, 1998 for the
Class A shares of the Global  Growth  Opportunities  Fund were 4.31% and 10.34%,
respectively.

The average  annual total returns for the one-year and  five-year  periods ended
October  31,  1998 and for the  period  September  9, 1992  (inception)  through
October 31,  1998 for the Class A shares of the Global  Smaller  Companies  Fund
were (10.30)%, 10.41% and 14.49%, respectively.

The average annual total returns for the one-year  period ended October 31, 1998
and for the period May 23,  1994  (inception)  through  October 31, 1998 for the
Class  A  shares  of  the  Global  Technology  Fund  were  (5.53)%  and  18.93%,
respectively.

   
These average annual total returns for each Fund's Class A shares, were computed
by assuming a hypothetical initial investment of $1,000 in Class A shares of the
Fund,  subtracting  the maximum sales charge of 4.75% of public  offering price,
and assuming  that all dividends  and  distributions  paid by the Fund's Class A
shares,  if any,  were  reinvested  over the relevant  time period.  It was then
assumed  that at the end of each period,  the entire  amount was  redeemed.  The
average annual total return was then  calculated by calculating  the annual rate
required  for the  initial  payment to grow to the amount  which would have been
received  upon such  redemption  (i.e.,  the  average  annual  compound  rate of
return).
    


                                       35

<PAGE>

Class B

The average annual total returns for the one-year  period ended October 31, 1998
and for the period April 22, 1996  (inception) to October 31, 1998 for the Class
B shares of the International Fund were 0.62% and 3.00%, respectively.

The average annual total returns for the one-year  period ended October 31, 1998
and for the period May 28, 1996  (inception) to October 31, 1998 for the Class B
shares  of  the  Emerging  Markets  Growth  Fund  were  (33.49)%  and  (14.10)%,
respectively.

The average annual total returns for the one-year  period ended October 31, 1998
and for the period April 22, 1996  (inception) to October 31, 1998 for the Class
B  shares  of the  Global  Growth  Opportunities  Fund  were  3.76%  and  7.33%,
respectively.

The average annual total returns for the one-year  period ended October 31, 1998
and for the period April 22, 1996  (inception) to October 31, 1998 for the Class
B shares of the  Global  Smaller  Companies  Fund  were  (11.01)%  and  (0.19)%,
respectively.

The average annual total returns for the one-year  period ended October 31, 1998
and for the period April 22, 1996  (inception) to October 31, 1998 for the Class
B shares of the Global Technology Fund were (5.62)% and 8.69%, respectively.

   
These average annual total returns for each Fund's Class B shares, were computed
by assuming a hypothetical initial investment of $1,000 in Class B shares of the
Fund, and assuming that all dividends and distributions paid by the Fund's Class
B shares,  if any, were  reinvested  over the relevant time period.  It was then
assumed  that  at the  end of each  period,  the  entire  amount  was  redeemed,
subtracting the applicable CDSC.
    

Class D

The average  annual total returns for the one-year and  five-year  periods ended
October  31, 1998 and for the period  September  21,  1993  (inception)  through
October  31, 1998 for the Class D shares of the  International  Fund were 4.53%,
6.29%, and 7.12%, respectively.

The average annual total returns for the one-year  period ended October 31, 1998
and for the period May 28,  1996  (inception)  through  October 31, 1998 for the
Class D shares of the Emerging  Markets  Growth Fund were (30.69)% and (13.02)%,
respectively.

The average annual total returns for the one-year  period ended October 31, 1998
and the period  November 1, 1995  (inception)  through  October 31, 1998 for the
Class D shares of the Global  Growth  Opportunities  Fund were 7.76% and 11.33%,
respectively.

The average  annual total returns for the one-year and  five-year  periods ended
October 31, 1998 and for the period May 3, 1993 (inception)  through October 31,
1998 for Class D shares  of the  Global  Smaller  Companies  Fund were  (7.43)%,
10.66% and 12.77%, respectively.

The average annual total returns for the one-year  period ended October 31, 1998
and for the period May 23,  1994  (inception)  through  October 31, 1998 for the
Class  D  shares  of  the  Global  Technology  Fund  were  (2.51)%  and  19.25%,
respectively.

   
These average annual total returns for each Fund's Class D shares, were computed
by assuming a hypothetical initial investment of $1,000 in Class D shares of the
Fund, and assuming that all dividends and distributions paid by the Fund's Class
D shares,  if any, were  reinvested  over the relevant time period.  It was then
assumed  
    

                                       36

<PAGE>

   
that at the end of each period, the entire amount was redeemed,  subtracting for
the one-year period the 1% CDSC, if applicable.
    

The tables below illustrate the total returns on a $1,000  investment in each of
the Fund's Class A, Class B and Class D shares from the commencement of a Fund's
operations  through October 31, 1998,  assuming  investment of all dividends and
capital gain  distributions  and  deduction of any  applicable  sales charges or
CDSC. Average annual total returns are determined by calculating the annual rate
of return required for the initial $1,000 investment to grow to the amount which
would have been received upon  redemption.  (i.e.,  the average annual  compound
rate of return).

The results  shown  should not be  considered a  representation  of the dividend
income or gain or loss in capital value which may be realized from an investment
made in a class of shares of any Fund today.

<TABLE>
<CAPTION>
                                     Class A

                              Value of           Value of                         Total Value
Fund/Year                      Initial         Capital Gain       Value of             of                 Total
Ended (1)                  Investment (2)     Distributions       Dividends      Investment (2)       Return (1)(3)
- ---------                  --------------     -------------       ---------      --------------       -------------
<S>                            <C>                 <C>              <C>             <C>                   <C>   
International Fund
10/31/92                        $ 944              $---             $---             $ 944
10/31/93                        1,268               ---                4             1,272
10/31/94                        1,402                28                5             1,435
10/31/95                        1,326                87                5             1,418
10/31/96                        1,363               169                5             1,537
10/31/97                        1,422               261                5             1,688
10/31/98                        1,409               384                5             1,798                 79.79%

Emerging Markets Growth
Fund
10/31/96                         $904              $---             $---              $904
10/31/97                          979               ---              ---               979
10/31/98                          691               ---              ---               691                (30.93)%

Global Growth
Opportunities Fund
10/31/96                       $1,077              $---             $---            $1,077
10/31/97                        1,227               ---              ---             1,227
10/31/98                        1,282                61              ---             1,343                 34.35%

Global Smaller Companies
Fund
10/31/92                        $ 953              $---             $---             $ 953
10/31/93                        1,330               ---                3             1,333
10/31/94                        1,591                10                3             1,604
10/31/95                        1,853                69                4             1,926
10/31/96                        2,019               230                4             2,253
10/31/97                        2,083               352                4             2,439
10/31/98                        1,881               412                4             2,297                129.72%
</TABLE>


                                       37

<PAGE>

<TABLE>
<CAPTION>
                                     Class A

                              Value of           Value of                         Total Value
Fund/Year                      Initial         Capital Gain       Value of             of                 Total
Ended (1)                  Investment (2)     Distributions       Dividends      Investment (2)       Return (1)(3)
- ---------                  --------------     -------------       ---------      --------------       -------------
<S>                            <C>                 <C>              <C>             <C>                   <C>   
Global Technology Fund
10/31/94                       $1,116              $---             $---            $1,116
10/31/95                        1,740                16              ---             1,756
10/31/96                        1,508               116                3             1,627
10/31/97                        2,019               156                3             2,178
10/31/98                        1,664               494                3             2,161                116.06%
</TABLE>

<TABLE>
<CAPTION>
                                     Class B

                              Value of           Value of                         Total Value
Fund/Year                      Initial         Capital Gain       Value of             of                 Total
Ended (1)                  Investment (2)     Distributions       Dividends      Investment (2)       Return (1)(3)
- ---------                  --------------     -------------       ---------      --------------       -------------
<S>                            <C>                 <C>              <C>             <C>                   <C>   
International Fund
10/31/96                         $963              $---              $---             $963
10/31/97                          995                54               ---            1,049
10/31/98                          945               133               ---            1,078                  7.75%

Emerging Markets Growth
Fund
10/31/96                         $947              $---              $---            $ 947
10/31/97                        1,018               ---               ---            1,018
10/31/98                          692               ---               ---              692                (30.85)%

Global Growth
Opportunities Fund
10/31/96                         $998              $---              $---             $998
10/31/97                        1,127               ---               ---            1,127
10/31/98                        1,140                56               ---            1,196
                                                                                                           19.55%
Global Smaller Companies
Fund
10/31/96                       $1,019              $---              $---           $1,019
10/31/97                        1,042               ---                53            1,095
10/31/98                          904                43                48              995                 (0.48)%

Global Technology Fund
10/31/96                         $967              $---              $---             $967
10/31/97                        1,284               ---               ---            1,284
10/31/98                        1,014               220               ---            1,234                 23.43%
</TABLE>


                                       38

<PAGE>

<TABLE>
<CAPTION>
                                     Class D

                              Value of           Value of                         Total Value
Fund/Year                      Initial         Capital Gain       Value of             of                 Total
Ended (1)                  Investment (2)     Distributions       Dividends      Investment (2)       Return (1)(3)
- ---------                  --------------     -------------       ---------      --------------       -------------
<S>                            <C>                 <C>              <C>             <C>                   <C>   
International Fund
10/31/93                       $1,048              $---              $---           $1,048
10/31/94                        1,151                23               ---            1,174
10/31/95                        1,079                71               ---            1,150
10/31/96                        1,099               138               ---            1,237
10/31/97                        1,136               211               ---            1,347
10/31/98                        1,112               310               ---            1,422                 42.16%

Emerging Markets Growth
Fund
10/31/96                         $947              $---              $---             $947
10/31/97                        1,018               ---               ---            1,018
10/31/98                          713               ---               ---              713
                                                                                                          (28.71)%

Global Growth
Opportunities Fund
10/31/96                       $1,123              $---              $---           $1,123
10/31/97                        1,269               ---               ---            1,269
10/31/98                        1,317                63               ---            1,350                 38.00%

Global Smaller Companies
Fund
10/31/93                       $1,167              $---              $---           $1,167
10/31/94                        1,385                 9               ---            1,394
10/31/95                        1,600                60               ---            1,660
10/31/96                        1,728               200               ---            1,928
10/31/97                        1,767               305               ---            2,072
10/31/98                        1,581               355               ---            1,936                 93.62%

Global Technology Fund
10/31/94                       $1,164              $---              $---           $1,168
10/31/95                        1,806                16               ---            1,822
10/31/96                        1,554               121               ---            1,675
10/31/97                        2,063               161               ---            2,224
10/31/98                        1,675               511               ---            2,186                118.63%
</TABLE>

- ---------------

1.   From commencement of operations on:

<TABLE>
<CAPTION>
         Fund                               Class A Shares     Class B Shares     Class D Shares
         ----                               --------------     --------------     --------------
<S>                                            <C>                 <C>                <C>
         International Fund                     4/7/92             4/22/96            9/21/93
         Emerging Markets Growth Fund          5/28/96             5/28/96            5/28/96
         Global Growth Opportunities Fund      11/1/95             4/22/96            11/1/95
         Global Smaller Companies Fund          9/9/92             4/22/96             5/3/93
         Global Technology Fund                5/23/94             4/22/96            5/23/94
</TABLE>

2.   The "Value of Initial  Investment"  as of the date  indicated  reflects the
     effect of the maximum sales load or CDSC, if  applicable,  assumes that all
     dividends  and capital gain  distributions  were taken in cash and reflects
     changes  in  the  net  asset  value  of  the  shares   purchased  with  the
     hypothetical  initial investment.  "Total Value of Investment" reflects the
     effect of the CDSC, if applicable,  and assumes investment of all dividends
     and capital gain distributions.

                                       39

<PAGE>

3.   "Total Return" for each class of shares of a Fund is calculated by assuming
     a hypothetical  initial investment of $1,000 at the beginning of the period
     specified;   subtracting  the  maximum  sales  load  for  Class  A  shares;
     determining  total value of all  dividends  and capital gain  distributions
     that would have been paid  during the period on such shares  assuming  that
     each  dividend or capital  gain  distribution  was  invested in  additional
     shares at net asset value; calculating the total value of the investment at
     the end of the period;  subtracting the CDSC on Class B and Class D shares,
     if applicable;  and finally,  by dividing the difference between the amount
     of the hypothetical  initial  investment at the beginning of the period and
     its total value at the end of the period by the amount of the  hypothetical
     initial  investment.  The  International  Fund's  total  return and average
     annual total return quoted from time to time through September 21, 1993 for
     Class A shares  does  not  reflect  the  deduction  of the  administration,
     shareholder services and distribution fee effective on that date, which fee
     if reflected would reduce the performance quoted.

No  adjustments  have been made for any income  taxes  payable by  investors  on
dividends invested or gain distributions taken in shares.

Seligman  and/or the prior  subadviser  waived its fees and  reimbursed  certain
expenses  during  some of the  periods  above,  which  positively  affected  the
performance results presented.

From time to time,  reference may be made in advertising or promotional material
to performance information,  including mutual fund rankings,  prepared by Lipper
Analytical  Service,  Inc., an independent  reporting service which monitors the
performance of mutual funds. In calculating the total return of the Fund's Class
A, Class B and Class D shares,  the Lipper  analysis  assumes  investment of all
dividends and distributions paid but does not take into account applicable sales
charges.  Each  Fund  may  also  refer in  advertisements  in other  promotional
material to  articles,  comments,  listings and columns in the  financial  press
pertaining to the Fund's performance. Examples of such financial and other press
publications  include  BARRON'S,  BUSINESS WEEK,  CDA/WIESENBERGER  MUTUAL FUNDS
INVESTMENT  REPORT,  CHRISTIAN SCIENCE MONITOR,  FINANCIAL  PLANNING,  FINANCIAL
TIMES,  FINANCIAL  WORLD,  FORBES,  FORTUNE,  INDIVIDUAL  INVESTOR,   INVESTMENT
ADVISOR,  INVESTORS  BUSINESS  DAILY,  KIPLINGER'S,  LOS  ANGELES  TIMES,  MONEY
MAGAZINE,  MORNINGSTAR, INC., PENSION AND INVESTMENTS, SMART MONEY, THE NEW YORK
TIMES,  THE WALL STREET JOURNAL,  USA TODAY,  U.S. NEWS AND WORLD REPORT,  WORTH
MAGAZINE, WASHINGTON POST AND YOUR MONEY.

A Fund's  advertising or  promotional  material may make reference to the Fund's
"Beta,"  "Standard  Deviation,"  or "Alpha." Beta measures the volatility of the
Fund, as compared to that of the overall market. Standard deviation measures how
widely the Fund's performance has varied from its average performance, and is an
indicator of the Fund's potential for volatility.  Alpha measures the difference
between  the returns of the Fund and the  returns of the  market,  adjusted  for
volatility.

                              Financial Statements

The Annual  Report to  shareholders  for the fiscal year ended  October 31, 1998
contains a schedule of the  investments  of the Funds as of October 31, 1998, as
well as certain  other  financial  information  as of that date.  The  financial
statements  and  notes  included  in the  Annual  Report,  and  the  Independent
Auditors'  Report  thereon,  are  incorporated  herein by reference.  The Annual
Report will be furnished  without charge to investors who request copies of this
SAI.

                               General Information

Rule 18f-2 under the 1940 Act provides that any matter  required to be submitted
by the provisions of the 1940 Act or applicable state law, or otherwise,  to the
holders of the outstanding  voting  securities of an investment  company such as
the Fund shall not be deemed to have been effectively acted upon unless approved
by the  holders of a majority  of the  outstanding  shares of each class or Fund
affected by such matter.  Rule 18f-2 further provides that a class or Fund shall
be deemed to be affected by a matter  unless it is clear that the  interests  of
each class or Fund in the matter are substantially  identical or that the matter
does not affect any  interest of such class or Fund.  However,  the Rule exempts
the  selection  of  independent  public  accountants,  the approval of principal
distributing  contracts and the election of directors  from the separate  voting
requirements of the Rule.

                                       40

<PAGE>

Custodian and Recordkeeping  Agents. Chase Manhattan Bank, One Pierrepont Plaza,
Brooklyn,  New York 11201, serves as custodian for the Fund. Investors Fiduciary
Trust Company, 801 Pennsylvania,  Kansas City, Missouri 64105, maintains,  under
the general  supervision of Seligman,  certain accounting records and determines
the net asset value for the each Fund.

Accountants.  Deloitte & Touche LLP, independent auditors, have been selected as
auditors of the Funds. Their address is Two World Financial Center, New York, NY
10281.


                                       41

<PAGE>

                                   Appendix A

Moody's Investors Service, Inc.  ("Moody's")
Debt Securities

     Aaa:  Bonds which are rated Aaa are judged to be of the best quality.  They
carry the smallest degree of investment risk. Interest payments are protected by
a large or by an exceptionally  stable margin and principal is secure. While the
various  protective  elements  are  likely to  change,  such  changes  as can be
visualized are most unlikely to impair the fundamentally strong position of such
issues.

Aa: Bonds which are rated Aa are judged to be of high quality by all  standards.
Together with the Aaa group they comprise what are generally known as high-grade
bonds. They are rated lower than Aaa bonds because margins of protection may not
be as large or fluctuation of protective elements may be of greater amplitude or
there may be other  elements  present  which  make the  long-term  risks  appear
somewhat larger than in Aaa securities.

A: Bonds which are rated A possess many favorable investment  attributes and are
to be considered as upper medium grade  obligations.  Factors giving security to
principal and interest are considered adequate but elements may be present which
suggest a susceptibility to impairment sometime in the future.

Baa: Bonds which are rated Baa are considered as medium grade obligations, i.e.,
they are neither  highly  protected nor poorly  secured.  Interest  payments and
principal  security  appear  adequate  for the present  but  certain  protective
elements may be  characteristically  lacking or may be unreliable over any great
length of time. Such bonds lack outstanding  investment  characteristics  and in
fact may have speculative characteristics as well.

Ba:  Bonds  which are rated Ba are judged to have  speculative  elements;  their
future cannot be considered as  well-assured.  Often the  protection of interest
and principal  payments may be very moderate,  and thereby not well  safeguarded
during  other  good and bad  times  over the  future.  Uncertainty  of  position
characterizes bonds in this class.

B:  Bonds  which are  rated B  generally  lack  characteristics  of a  desirable
investment.  Assurance of interest and principal  payments or of  maintenance of
other terms of the contract over any long period of time may be small.

Caa:  Bonds  which are rated Caa are of poor  standing.  Such  issues  may be in
default or there may be present  elements of danger with respect to principal or
interest.

Ca: Bonds which are rated Ca represent obligations which are speculative in high
degree. Such issues are often in default or have other marked shortcomings.

C: Bonds which are rated C are the lowest  rated  class of bonds,  and issues so
rated can be regarded as having  extremely  poor prospects of ever attaining any
real investment standing.

Moody's  applies  numerical  modifiers  (1,  2 and  3) in  each  generic  rating
classification  from Aa  through B in its  corporate  bond  rating  system.  The
modifier 1 indicates  that the  security  ranks in the higher end of its generic
rating  category;  modifier 2  indicates  a mid-range  ranking;  and  modifier 3
indicates that the issuer ranks in the lower end of its generic rating category.

Commercial Paper

Moody's Commercial Paper Ratings are opinions of the ability of issuers to repay
punctually promissory senior debt obligations not having an original maturity in
excess of one year.  Issuers  rated  "Prime-1"  or "P-1"  indicate  the  highest
quality repayment ability of the rated issue.

                                       42

<PAGE>

The  designation  "Prime-2"  or "P-2"  indicates  that the  issuer  has a strong
ability for  repayment of senior  short-term  promissory  obligations.  Earnings
trends and  coverage  ratios,  while sound,  may be more  subject to  variation.
Capitalization characteristics, while still appropriate, may be more affected by
external conditions. Ample alternative liquidity is maintained.

The  designation  "Prime-3" or "P-3" indicates that the issuer has an acceptable
capacity  for  repayment of  short-term  promissory  obligations.  The effect of
industry  characteristics  and  market  compositions  may  be  more  pronounced.
Variability in earnings and  profitability may result in changes in the level of
debt protection measurements and may require relatively high financial leverage.
Adequate alternate liquidity is maintained.

Issues rated "Not Prime" do not fall within any of the Prime rating categories.

Standard & Poor's  Rating Service ("S&P")
Debt Securities

AAA:  Debt  issues  rated AAA are  highest  grade  obligations.  Capacity to pay
interest and repay principal is extremely strong.

AA:  Debt  issues  rated AA have a very high  degree of safety  and very  strong
capacity to pay interest and repay  principal  and differ from the highest rated
issues only in small degree.

A: Debt issues rated A are regarded as upper  medium  grade.  They have a strong
degree of safety and capacity to pay interest and repay principal although it is
somewhat more  susceptible in the long term to the adverse effects of changes in
circumstances and economic conditions than debt in higher rated categories.

BBB:  Debt  issues  rated BBB are  regarded as having a  satisfactory  degree of
safety and capacity to pay interest and re-pay principal.  Whereas they normally
exhibit adequate protection parameters,  adverse economic conditions or changing
circumstances are more likely to lead to a weakened capacity to pay interest and
re-pay  principal  for bonds in this  category  than for  bonds in higher  rated
categories.

BB, B, CCC, CC: Debt issues rated BB, B, CCC and CC are regarded on balance,  as
predominantly  speculative  with respect to capacity to pay interest and pre-pay
principal in  accordance  with the terms of the bond.  BB  indicates  the lowest
degree of speculation and CC the highest degree of speculation. While such bonds
will  likely  have  some  quality  and  protective  characteristics,  these  are
outweighed by large uncertainties or major risk exposure to adverse conditions.

C: The rating C is reserved for income bonds on which no interest is being paid.

D: Debt issues rated D are in default,  and payment of interest and/or repayment
of principal is in arrears.

NR:  Indicates  that no rating has been  requested,  that there is  insufficient
information  on which to base a  rating  or that S&P does not rate a  particular
type of bond as a matter of policy.

Commercial Paper

S&P Commercial Paper ratings are current assessments of the likelihood of timely
payment of debts having an original maturity of no more than 365 days.

A-1: The A-1 designation  indicates that the degree of safety  regarding  timely
payment is very strong.

A-2:   Capacity  for  timely   payment  on  issues  with  this   designation  is
satisfactory.  However,  the  relative  degree  of  safety is not as high as for
issues designated "A-1."

                                       43

<PAGE>

A-3: Issues carrying this designation have adequate capacity for timely payment.
They are,  however,  more  vulnerable  to the  adverse  effects  of  changes  in
circumstances than obligations carrying the higher designations.

B:  Issues  rated "B" are  regarded as having only a  speculative  capacity  for
timely payment.

C: This  rating is  assigned  to  short-term  debt  obligations  with a doubtful
capacity of payment.

D:  Debt rated "D" is in payment default.

NR:  Indicates  that no rating has been  requested,  that there is  insufficient
information  on which to base a  rating  or that S&P does not rate a  particular
type of bond as a matter of policy.

The ratings  assigned  by S&P may be  modified by the  addition of a plus (+) or
minus (-) sign to show relative standing within its major rating categories.


                                       44

<PAGE>

                                   Appendix B

                 HISTORY OF J. & W. SELIGMAN & CO. INCORPORATED

Seligman's  beginnings  date back to 1837, when Joseph  Seligman,  the oldest of
eight brothers,  arrived in the United States from Germany. He earned his living
as a pack  peddler in  Pennsylvania,  and began  sending for his  brothers.  The
Seligmans became successful merchants,  establishing businesses in the South and
East.

Backed by nearly thirty years of business  success - culminating  in the sale of
government securities to help finance the Civil War - Joseph Seligman,  with his
brothers,  established the international  banking and investment firm of J. & W.
Seligman & Co. In the years that followed,  the Seligman  Complex played a major
role in the  geographical  expansion and  industrial  development  of the United
States.

The Seligman Complex:

 ...Prior to 1900

o    Helps finance America's fledgling railroads through underwritings.
o    Is admitted to the New York Stock  Exchange  in 1869.  Seligman  remained a
     member of the NYSE until 1993,  when the  evolution of its business made it
     unnecessary.
o    Becomes a prominent underwriter of corporate securities, including New York
     Mutual Gas Light Company, later part of Consolidated Edison.
o    Provides financial  assistance to Mary Todd Lincoln and urges the Senate to
     award her a pension.
o    Is appointed U.S. Navy fiscal agent by President Grant.
o    Becomes a leader in raising  capital  for  America's  industrial  and urban
     development.

 ...1900-1910

o    Helps Congress finance the building of the Panama Canal.

 ...1910s

o    Participates  in  raising  billions  for Great  Britain,  France and Italy,
     helping to finance World War I.

 ...1920s

o    Participates  in hundreds of successful  underwritings  including those for
     some  of the  Country's  largest  companies:  Briggs  Manufacturing,  Dodge
     Brothers, General Motors,  Minneapolis-Honeywell Regulatory Company, Maytag
     Company United Artists Theater Circuit and Victor Talking Machine Company.
o    Forms  Tri-Continental  Corporation  in 1929,  today the nation's  largest,
     diversified  closed-end equity investment company,  with over $3 billion in
     assets, and one of its oldest.

 ...1930s

o    Assumes  management of Broad Street  Investing  Co. Inc.,  its first mutual
     fund, today known as Seligman Common Stock Fund, Inc.
o    Establishes Investment Advisory Service.

                                       45

<PAGE>

 ...1940s

o    Helps shape the Investment Company Act of 1940.
o    Leads in the  purchase  and  subsequent  sale to the public of Newport News
     Shipbuilding  and  Dry  Dock  Company,  a  prototype  transaction  for  the
     investment banking industry.
o    Assumes management of National Investors Corporation, today Seligman Growth
     Fund, Inc.
o    Establishes Whitehall Fund, Inc., today Seligman Income Fund, Inc.

 ...1950-1989

o    Develops new open-end  investment  companies.  Today,  manages more than 40
     mutual fund portfolios.
o    Helps  pioneer  state-specific,  municipal  bond  funds,  today  managing a
     national and 18 state-specific municipal funds.
o    Establishes J. & W. Seligman Trust Company and J. & W. Seligman  Valuations
     Corporation.
o    Establishes  Seligman  Portfolios,  Inc.,  an  investment  vehicle  offered
     through variable annuity products.

 ...1990s

o    Introduces  Seligman  Select  Municipal  Fund,  Inc. and  Seligman  Quality
     Municipal  Fund,  Inc.  two  closed-end  funds that invest in high  quality
     municipal bonds.
o    In 1991 establishes a joint venture with Henderson plc, of London, known as
     Seligman  Henderson  Co.,  to offer  global  and  international  investment
     products.
o    Introduces  to  the  public   Seligman   Frontier   Fund,   Inc.,  a  small
     capitalization mutual fund.
o    Launches  Seligman  Henderson Global Fund Series,  Inc., which today offers
     five  separate  Funds:  Seligman  Henderson  International  Fund,  Seligman
     Henderson  Global  Smaller  Companies  Fund,   Seligman   Henderson  Global
     Technology Fund Seligman  Henderson  Global Growth  Opportunities  Fund and
     Seligman Henderson Emerging Markets Growth Fund.
o    Launches  Seligman Value Fund,  Inc.,  which currently  offers two separate
     Fund: Seligman Large-Cap Value Fund and Seligman Small-Cap Value Fund.



                                       46

<PAGE>

                                   Appendix C

                            HISTORY OF HENDERSON PLC

Henderson  plc's origins can be traced back to the year 1872,  when its founder,
Sir Alexander  Henderson,  joined the London Stock  Exchange.  In the years that
followed,  Sir Alexander and the Henderson  brothers  began a long  tradition of
global investing.

 ...Prior to 1900

o    Alexander Henderson joins the London Stock Exchange in 1872.
o    Invests in railways in South America and Spain,  mining and gold  interests
     in Mexico, Australia, and Chile, and wheat field developments in Canada and
     the United States.
o    Invests in the Argentine Transandine Railway in 1887.
o    Helps finance the building of Manchester Ship Canal in England in 1887.
o    Launches TR Smaller Companies Investment Trust in 1887.
o    Launches The Bankers Investment Trust in 1888.
o    Launches Electric and General Investment Company in 1890.
o    Launches TR City of London Trust in 1891.
o    Helps finance the building of the Great Central Railway in England in 1894.
o    Alexander Henderson is elected to British Parliament in 1898.

 ...1900-1910

o    Alexander Henderson is knighted in 1902.
o    Finances  British  Central African Company in 1902 to build railways across
     Africa.
o    Launches TR Property Investment Trust in 1905.
o    Helps establish the National Bank of Turkey in 1909.
o    Establishes Witan Investment Company in 1909.

 ...1910s

o    Alexander Henderson achieves peerage as the first Lord Faringdon in 1916.
o    Helps  establish  The  British  Trade  Corporation  in 1917,  dedicated  to
     developing international trade for English companies.

 ...1920-1989

o    Presides over the 1922 merger of the Great Central  Railway with the London
     and North Eastern Railway.
o    Henderson Administration,  today Henderson plc, is formally incorporated in
     1934.
o    Henderson  is one of the  first  United  Kingdom  investors  in  Occidental
     Petroleum in 1959.
o    Begins  managing a Fund of retail  unit  trusts in 1974 that are focused on
     international  markets,  including Japan,  North America,  Europe,  and the
     Pacific.  Today, Henderson manages 22 retail unit trusts, eight exempt unit
     trusts, and 20 investment trusts.
o    Launches the  Luxembourg-based  Henderson Horizon Funds in 1983,  including
     European  Smaller  Companies  Fund and Global Bond Fund.  Today,  Henderson
     offers 12 Henderson Horizon Funds.
o    Henderson is listed on the London Stock Exchange in 1983.


                                       47

<PAGE>

 ...1990s

o    Establishes a joint venture in 1991 with New  York-based J. & W. Seligman &
     Co., known as Seligman Henderson Co., to offer global investment products.
o    Launches  Seligman  Henderson Global Fund Series,  Inc., which today offers
     five  separate  Funds:  Seligman  Henderson  International  Fund,  Seligman
     Henderson  Global  Smaller  Companies  Fund,   Seligman   Henderson  Global
     Technology Fund,  Seligman Henderson Global Growth  Opportunities Fund, and
     Seligman Henderson Emerging Markets Growth Fund.
o    Has been the recipient of Micropal's  "Best Investment Trust Manager of the
     Year" award for the years 1994, 1995, and 1996.
o    In 1998,  Henderson  plc was acquired by AMP Limited,  an  Australian  life
     insurance and financial services company.




                                       48



<PAGE>


                                      SELIGMAN
                   ---------------------------
                            SELIGMAN HENDERSON
                      GLOBAL FUND SERIES, INC.

                            INTERNATIONAL FUND

                              EMERGING MARKETS
                                   GROWTH FUND

                                 GLOBAL GROWTH
                            OPPORTUNITIES FUND

                                GLOBAL SMALLER
                                COMPANIES FUND

                        GLOBAL TECHNOLOGY FUND

                                 ANNUAL REPORT
                              OCTOBER 31, 1998

                                     INVESTING
                              AROUND THE WORLD
                                   FOR CAPITAL
                                  APPRECIATION

                                     [LOGO]

                             J. & W. SELIGMAN & CO.
                                  INCORPORATED
                                ESTABLISHED 1864



<PAGE>

SELIGMAN -- TIMES CHANGE...VALUES ENDURE

J. & W. SELIGMAN & CO. INCORPORATED IS A FIRM WITH A LONG TRADITION OF
INVESTMENT EXPERTISE, OFFERING A BROAD ARRAY OF INVESTMENT CHOICES TO HELP
TODAY'S INVESTORS SEEK THEIR LONG-TERM FINANCIAL GOALS.

TIMES CHANGE...

Established in 1864, Seligman's history of providing financial services has been
marked not by fanfare, but rather by a quiet and firm adherence to financial
prudence. While the world has changed dramatically in the 134 years since
Seligman first opened its doors, the firm has continued to offer its clients
high-quality investment solutions through changing times.

In the late 19th century, as the country grew, Seligman helped finance the
westward expansion of the railroads, the construction of the Panama Canal, and
the launching of urban transit systems. In the first part of the 20th century,
as America became an industrial power, the firm helped fund the growing capital
needs of the nascent automobile and steel industries.

With the formation of Tri-Continental Corporation in 1929 -- today, the nation's
largest diversified publicly-traded closed-end investment company -- Seligman
began shifting its emphasis from investment banking to investment management.
Despite the stock market crash and ensuing depression, Seligman was convinced of
the importance that investment companies could have in building wealth for
individual investors and began managing its first mutual fund in 1930.

In the decades that followed, Seligman has continued to offer forward-looking
investment solutions, including funds that focus on technology stocks, municipal
bonds, and international securities.

 ...VALUES ENDURE Seligman is proud of its distinctive past and of the
traditional values that continue to shape the firm's business decisions and
investment judgment. While much has changed over the years, the firm's
commitment to providing prudent investment management that seeks to build wealth
for clients over time is an enduring value that will guide Seligman into the new
millennium.


JAMES, JESSE, AND JOSEPH SELIGMAN, 1870

TABLE OF CONTENTS
To the Shareholders                                       1
Market and Economic Overview                              2
Seligman Henderson International Fund:
  Investment Report                                       3
  Performance and Portfolio Overview                      5
  Portfolio of Investments                                8
Seligman Henderson Emerging Markets Growth Fund:
  Investment Report                                      13
  Performance and Portfolio Overview                     15
  Portfolio of Investments                               18
Seligman Henderson Global Growth Opportunities Fund:
  Investment Report                                      23
  Performance and Portfolio Overview                     25
  Portfolio of Investments                               28
Seligman Henderson Global Smaller Companies Fund:
  Investment Report                                      33
  Performance and Portfolio Overview                     35
  Portfolio of Investments                               38
Seligman Henderson Global Technology Fund:
  Investment Report                                      51
  Performance and Portfolio Overview                     53
  Portfolio of Investments                               56
Statements of Assets and Liabilities                     63
Statements of Operations                                 64
Statements of Changes in Net Assets                      65
Notes to Financial Statements                            67
Financial Highlights                                     75
Report of Independent Auditors                           80
Board of Directors                                       81
Proxy Results                                            82
Executive Officers AND For More Information              83
Glossary of Financial Terms                              84
Benchmarks                                               85



<PAGE>

TO THE SHAREHOLDERS

We are  pleased to provide  you with the October  31,  1998,  Annual  Report for
Seligman  Henderson Global Fund Series,  Inc., which includes the  International
Fund, the Emerging  Markets Growth Fund, the Global Growth  Opportunities  Fund,
the Global Smaller  Companies  Fund, and the Global  Technology  Fund.  Troubled
markets around the world led to losses for all Seligman  Henderson  Global Funds
in the six months ended October 31. These losses caused several Funds to end the
fiscal year in negative territory.

While the 1998 fiscal year  proved a  difficult  one for the Funds,  the rebound
that started in October  continued to gain steam in November and into  December.
Some of the  hardest  hit asset  classes  this past  summer  --  technology  and
small-company  stocks  --  recovered  the  most  ground.  In  turn,  the  Global
Technology  Fund  and the  Global  Smaller  Companies  Fund,  both  in  negative
territory as the fiscal year ended,  posted  substantial  gains in recent weeks.
The  International  Fund and the Global Growth  Opportunities  Fund finished the
year with modest  gains,  despite  losses in the second half of the fiscal year,
and have also posted  gains since  October.  The Emerging  Markets  Growth Fund,
which had a  significant  loss for the year,  continues  to struggle  along with
emerging markets in general.

Recent market  activity  indicates  that the  magnitude of the global  financial
problems has been  recognized  and  authorities  are working to find  solutions.
Several of the Asian markets first hit by turmoil last year have put stabilizing
policies in place;  Japan has taken steps toward bank reform;  the International
Monetary  Fund,  with the  backing of the G7, has made a priority  of avoiding a
destructive Brazilian  devaluation;  and interest rates have been lowered in the
US and around the world.

Looking ahead,  the  combination of lower  valuations and positive fiscal action
have increased the  attractiveness  of stocks and bonds around the world.  While
much still needs to be done  globally to repair the damage --  especially in the
emerging  markets of Asia,  Brazil,  and Russia -- we believe  that  significant
longer-term  investment  opportunities  currently  exist,  and  your  investment
manager  remains  committed to the sound  principles of long-term  investing and
global diversification that have successfully stood the test of time.

Currently,  virtually  all companies are  modifying  their  computer  systems to
recognize dates of January 1, 2000, and beyond. This is often referred to as the
"Y2K" problem.  Unless systems are updated,  many applications may interpret the
last  two  digits  of the  year to mean  1900  instead  of  2000.  The  Seligman
investment  teams are well aware of the  potential  ramifications  that the Year
2000  issue  may have on  companies  whose  securities  are  held in  investment
portfolios.  As part of each Team's investment process, members seek to identify
the  preparedness  of those firms whose  underlying  business  models leave them
susceptible  to Y2K problems.  The evaluation of a company's Year 2000 readiness
has  become  an  increasingly  important  factor  which  is  considered  by  our
investment teams prior to investing in, disposing of, or continuing to hold, any
security.

In addition to monitoring  the potential Y2K impact on our  investments,  we are
making  sure our firm is in  order.  J. & W.  Seligman  & Co.  Incorporated  has
established a team to ensure that your  investment and related  services are not
disrupted.  This team is  supported  by  consulting  firms  specializing  in Y2K
solutions.  We are  confident  that when our plans are finalized and all systems
are tested, there will be no disruption in the services provided by your Fund.

Thank you for your continued  support of Seligman  Henderson Global Fund Series.
We look forward to serving your investment needs in the many years to come.

By order of the Board of Directors,


/s/WILLIAM C. MORRIS
William C.  Morris
Chairman

                             /s/BRIAN T. ZINO
                                Brian T.  Zino
                                President

December 4, 1998

                                       1


<PAGE>

MARKET AND ECONOMIC OVERVIEW

OVERVIEW

The year ended  October 31, 1998,  was marked by  volatility  and a  significant
divergence  between the stock markets and economies of the East and the West. In
general,  Western  stock markets  performed  well for the year,  before  falling
sharply in mid-July.  By contrast,  most Asian stock markets fell throughout the
year  before  showing  recent  signs  of  a  tentative  recovery.  The  economic
background  has been one of  steadily  deteriorating  conditions  as a financial
crisis  initially  limited  to a few Asian  countries  spread  throughout  other
regions,  culminating in the collapse of the Russian economy. Few countries were
left unscathed.


UNITED STATES

During the economic and market turmoil  elsewhere,  the US economy  continued to
make good progress,  although there has been some recent  evidence of a slowing.
Corporate  profits in the US initially held up well, but  expectations  declined
steadily  throughout the year. For the third quarter of 1998,  corporate profits
actually fell.  Against this background,  bond yields continued to hit new lows,
with the 30-year bond at one point yielding below 5%. The subsequent  turmoil in
credit  markets  has  been a major  catalyst  for the  Federal  Reserve's  three
interest-rate cuts since September.


UNITED KINGDOM

The UK economy has recently begun to contract. The problems in the manufacturing
sector have now appeared in the consumer  sector.  Growth  expectations for this
year and next have been significantly  reduced,  and corporate profits have come
under increasing pressure.  More recently, the Monetary Policy Committee has cut
short-term interest rates, leading to a much needed decline in sterling. In this
negative environment,  the UK market has generally  underperformed other Western
markets.


CONTINENTAL EUROPE

In general, the performance of Continental European economies has been positive.
In  particular,  some of the  peripheral  economies  have  seen  strong  growth.
However,  there are  increasing  signs that the problems in Asia are starting to
have a negative  impact.  Monetary policy has generally been on hold in the core
economies in advance of the  introduction  of the  European  Central Bank (ECB).
However, in the peripheral  markets,  interest rates are converging at the lower
levels of the core economies.

In the early part of 1998,  European markets were booming.  A favorable economic
background,  positive earnings  surprises,  and abundant liquidity all helped to
generate strong returns.  However,  stock markets  corrected sharply in July and
have since been slow to recover. As elsewhere,  European growth expectations for
next year have been declining, but less so compared to other regions.


JAPAN

The economic  background in Japan continued to deteriorate  throughout the year.
The economy itself is clearly in recession. The government continues to announce
fiscal  spending  measures,  thus far with little  impact.  During the year, the
financial crisis continued to worsen,  with the government having to nationalize
one of the leading  banks,  although the  authorities  have  promised to provide
enough  cash to support  the  banking  system.  The  Japanese  market  generally
declined over the period. Recently, however, it has shown signs of stabilizing.


PACIFIC REGION

The situation in the Pacific Region remained dreadful for most of the year, with
recessions in virtually all major economies.  Lately, there have been signs that
conditions  are at least not  getting  any worse,  and the  Chinese  economy has
continued  to  move  forward,  helping  to  support  the  rest  of  the  region.
Considerable  problems still remain,  but it may be that the worst is now behind
us. In recent months, stock markets have recovered quite strongly,  particularly
in Thailand  and South  Korea.  There have also been signs of  stabilization  in
currency markets.


EMERGING MARKETS (EX-PACIFIC)

In the early part of the year, both Latin America and emerging  European markets
held up reasonably well, but as the depth of the Russian crisis became apparent,
most  of  these  markets  fell  sharply.  Growth  everywhere  is  slowing  down,
particularly in Latin America.


SUMMARY

Overall,  world  economic  growth has slowed  steadily  throughout  the year and
forecasts  for  next  year  suggest  growth  in the  Organization  for  Economic
Cooperation  and  Development  (OECD) is likely to be the weakest in many years.
This will negatively  impact profits at a time when stock market  valuations are
still  high.  It  does  appear  that  Western   authorities  have  realized  the
seriousness of the situation.  There has been a significant lowering of interest
rates almost everywhere in the last three months.  However,  inflation continues
to decline  virtually  everywhere and the worry now is that lower  inflation may
turn into deflation.

Cuts in interest  rates  should keep the world  economy out of global  recession
next year, but there remain  considerable  risks on the downside.  Stock markets
have  recovered  from their worst  position,  but  confidence  remains  fragile.
Provided the  authorities  stay  vigilant,  stock markets can make some progress
next year,  but the route may be  challenging.  Please  note,  all stock  market
returns quoted in the following Investment Reports are in US dollar terms.


                                       2
<PAGE>


INVESTMENT REPORT
SELIGMAN HENDERSON INTERNATIONAL FUND

PERFORMANCE REVIEW

The year ended October 31, 1998, was characterized by great  volatility.  In the
first half of the year,  international  equity  markets  went from  strength  to
strength, reaching record highs during the month of July. It then became evident
that the effects of the Asian economic crisis were finally  beginning to be felt
around the world,  and equities sold off on fears of a global  crisis.  However,
this  setback  did not last long,  and stock  markets  around the globe  rallied
sharply from their low point on October 5, 1998, as world leaders worked quickly
to avert the crisis and restore confidence by lowering interest rates.

Within this context,  the Fund posted a 6.51% total return for the year based on
the net asset value of Class A shares,  outpacing  the 3.99% total return of its
peer group, as measured by the Lipper International Funds Average. The return of
the  Fund's  benchmark,   the  Morgan  Stanley  Capital   International  Europe,
Australasia, Far East (MSCI EAFE) Index, was 9.95% for the same period.


PORTFOLIO STRATEGY

UNITED KINGDOM

o    The UK followed the fortunes of the rest of world  markets over the period,
     falling  dramatically  following  July highs,  but ending the Fund's fiscal
     year on a better note. As in other regions,  banks were negatively impacted
     and concerns about  exposure to emerging  market debt arose over the sector
     as a whole.  There  has been a period of  earnings  downgrades  and  profit
     warnings  across the board.  Economic data reported in October added to the
     gloomy picture, indicating that the UK economy is slowing.

     THROUGHOUT THE YEAR, THE FUND MAINTAINED A  BENCHMARK-NEUTRAL  WEIGHTING IN
     THE UK AS WE VIEWED THE UK AS A DEFENSIVE  ALTERNATIVE COMPARED TO THE REST
     OF THE WORLD.  THIS MARKET HAS HELD UP  RELATIVELY  WELL,  CONSIDERING  THE
     TURMOIL AND  VOLATILITY  IN WORLD  MARKETS.  WHILE THE ECONOMY HAS RECENTLY
     BEGUN TO SLOW,  THERE HAS BEEN A CUT IN INTEREST  RATES,  WITH FURTHER RATE
     CUTS EXPECTED.  THIS FITS IN WITH THE PREDICTED  "SOFT  LANDING"  SCENARIO,
     RATHER THAN A HARSH FALL INTO RECESSION.

CONTINENTAL EUROPE

o    In Continental  Europe,  markets have fallen from previous highs, but still
     ended the year up an impressive 27%. Economic growth for the region, though
     dented,  should  still  prove the most  resilient  in the  world.  Although
     expectations for earnings have been revised lower, the many positive trends
     that have made  Continental  Europe an attractive  equity  environment  are
     still intact and should  produce  strong gains over the next twelve months.
     European Monetary Union (EMU) will begin in January 1999 and will result in
     lower interest rates and low inflation.  In addition, the pace of corporate
     restructuring  should not slow as companies  strive to boost  profitability
     and shareholder returns.

THE FUND WAS OVERWEIGHTED IN THE CONTINENTAL  EUROPEAN EQUITY MARKETS DURING THE
PAST YEAR. LOWER INTEREST RATES, CORPORATE RESTRUCTURING, THE ANTICIPATION OF


                                [PHOTO OMITTED]

INTERNATIONAL  TEAM:  (FROM  LEFT)  JAMES  ROBINSON,  BEN  ELWES,  IAIN C. CLARK
(PORTFOLIO  MANAGER),  DAVID  THORNTON,  PETER BASSETT,  (SEATED)  STACEY NAVIN,
KIRSTEEN MORRISON


FUND OBJECTIVE

Seligman Henderson  International Fund, which commenced investment operations on
April 7, 1992, seeks long-term  capital  appreciation by investing  primarily in
the stocks of larger-sized companies outside the US.

                                       3


<PAGE>


     EMU,  AND STRONG  FORECASTED  EARNINGS  GROWTH  HELPED TO LIFT STOCK PRICES
     HIGHER  IN THE  FIRST  HALF OF  1998,  OUTPERFORMING  MOST  OTHER  REGIONAL
     MARKETS. DESPITE THE RECENT GLOBAL EQUITY MARKET CORRECTION,  THE FUND WILL
     LIKELY MAINTAIN ITS REGIONAL  OVERWEIGHTING AS WE ANTICIPATE FURTHER STRONG
     GAINS IN TELECOMMUNICATIONS,  FINANCIALS (ESPECIALLY INSURERS),  UTILITIES,
     AND RETAILING.

JAPAN

o    The Japanese  market  finished the year down 14.3% in US dollar terms,  due
     mainly to fears about the economy and the ailing banking  system.  Economic
     data provided  supporting  evidence that the economy is in fact in a period
     of recession.  Following the  resignation  of Prime  Minister  Hashimoto in
     July,  there was a period of optimism  that the new  premier,  Mr.  Obuchi,
     would  implement  the  necessary  changes to  stimulate  the economy and to
     restructure the ailing financial  system.  However,  this enthusiasm proved
     short lived as the  government  has failed thus far to deliver any positive
     policy changes.

     THE FUND MAINTAINED A LOW WEIGHTING IN JAPAN  THROUGHOUT THE YEAR AS WE DID
     NOT ANTICIPATE  ANY ECONOMIC  RECOVERY IN THE NEAR TERM. WE DO NOT EXPECT A
     SPEEDY  SOLUTION TO THE BANKING  CRISIS NOR SUFFICIENT  FISCAL  STIMULUS TO
     BOOST THE  ECONOMY,  AND BELIEVE  THAT  SIGNIFICANT  RISKS FOR THE JAPANESE
     STOCK MARKET  REMAIN.  UNTIL  CLEARER  EVIDENCE  THAT THE  CONDITION OF THE
     JAPANESE ECONOMY IS IMPROVING, WE WILL REMAIN CAUTIOUS.

PACIFIC

o    The  Pacific  Basin  ended the year down,  with  markets  across the region
     declining 13.7% on average.  However, the region had a reversal of fortunes
     in the last  few  months  due to the Hong  Kong  government's  decision  to
     intervene  in its  stock  market,  which  had the  effect  of  artificially
     inflating  prices.  Other  countries  such as Malaysia and  Indonesia  have
     continued to underperform  dramatically and remain extremely unstable.  The
     protectionism  that started in Malaysia threatens the region with potential
     isolation.  The continuing recession in Japan is also preventing the region
     from exporting its way out of trouble.

     SINCE JUNE 1997, THE FUND HAS BEEN SIGNIFICANTLY UNDERWEIGHT IN THE PACIFIC
     REGION. THE ECONOMIC CRISIS EXACERBATED THE PRESSURES TO DEVALUE CURRENCIES
     THROUGHOUT THE REGION, ULTIMATELY HAVING AN IMPACT ON THE EQUITY MARKETS OF
     DEVELOPED  COUNTRIES  BEGINNING  IN JULY 1997.  WITH LESS RISKY  INVESTMENT
     OPPORTUNITIES  AVAILABLE IN RELATIVELY  MORE STABLE AREAS OF THE WORLD,  WE
     MAINTAINED A MINIMAL EXPOSURE LEVEL TO PACIFIC MARKETS  THROUGHOUT THE PAST
     YEAR, AND EXPECT TO REMAIN UNDERWEIGHT IN THE NEAR TERM.

EMERGING MARKETS

o    Emerging  markets  suffered  badly from a background  of sliding  commodity
     prices  and  slowing  global  economic   growth.   In  addition,   Russia's
     devaluation and credit default have weighed heavily on investor  sentiment.
     Elsewhere,  there was a loss of confidence  in the  Brazilian  government's
     ability to solve its fiscal problems. This led to capital outflows and fear
     of devaluation.  Our view is that the international  assistance package for
     Brazil  should  begin  to  restore  investor  confidence,  allowing  for  a
     recovery. We have, therefore,  decided to maintain a modest exposure to the
     most  established  companies in selected  emerging markets where valuations
     are attractive and at historic lows.

     DURING THE COURSE OF THE YEAR,  THE FUND'S  HOLDINGS  IN  EMERGING  MARKETS
     TYPICALLY  RANGED BETWEEN 5% AND 10% OF TOTAL ASSETS.  THE FUND'S  EXPOSURE
     WAS PRIMARILY IN  EASTERN/CENTRAL  EUROPEAN AND LATIN  AMERICAN  COUNTRIES.
     INVESTMENTS IN EMERGING MARKETS WERE FOCUSED ON HIGHER-QUALITY, MORE LIQUID
     NAMES,  RATHER THAN LESS LIQUID  SMALLER-CAP  ISSUES AND INVESTMENTS IN THE
     "FRONTIER"COUNTRY MARKETS.

OUTLOOK

The outlook for global stock markets  continues to be positive as  interest-rate
reductions and efforts to prevent any further  spreading of the financial crises
to  Latin   America  have  boosted   investor   sentiment.   But  despite  these
improvements,  risks  remain and markets  must  anticipate  slower  economic and
corporate profit growth. Within this context, we expect that Continental Europe,
the UK, and select emerging markets may offer attractive return potential, as we
believe that corporate earnings growth has the potential to be greatest in these
regions. While we expect the economies of Japan and the Pacific region to remain
depressed  over the next few  months,  we believe  both  regions  could  improve
significantly over the longer term.


                                       4

<PAGE>


PERFORMANCE AND PORTFOLIO OVERVIEW
SELIGMAN HENDERSON INTERNATIONAL FUND

COUNTRY ALLOCATION
OCTOBER 31, 1998

                                                       MSCI
                                                       EAFE
                                            FUND      INDEX
                                          -------    -------
CONTINENTAL EUROPE .......................  61.03%     50.55%
    Austria ..............................     --       0.35
    Belgium ..............................     --       1.87
    Denmark ..............................   1.34       0.94
    Finland ..............................     --       1.16
    France ...............................  12.75       9.46
    Germany ..............................   7.98      10.45
    Greece ...............................   1.34         --
    Hungary ..............................   2.14         --
    Ireland ..............................   1.41       0.48
    Italy ................................   6.86       4.80
    Netherlands ..........................   6.45       5.41
    Norway ...............................     --       0.48
    Portugal .............................   1.47       0.74
    Spain ................................   6.81       3.38
    Sweden ...............................   3.02       2.76
    Switzerland ..........................   9.46       8.27
JAPAN ....................................   8.45      21.53
LATIN AMERICA ............................   1.28         --
    Brazil ...............................   0.33         --
    Mexico ...............................   0.95         --
PACIFIC ..................................   1.23       5.94
    Australia ............................   1.14       2.71
    Hong Kong ............................     --       2.36
    New Zealand ..........................     --       0.19
    Singapore ............................     --       0.68
    South Korea ..........................   0.09         --
UNITED KINGDOM ...........................  20.55      21.98
OTHER ASSETS LESS LIABILITIES ............   7.46         --
                                        ---------  ---------
TOTAL                                      100.00%    100.00%
                                        =========  =========


LARGEST INDUSTRIES
OCTOBER 31, 1998

[The following represents a bar chart in the original]

BANKING                 12.6     $11,533,271
TELECOMMUNICATIONS      11.5      10,486,347
RETAILING                8.7       7,926,082
INSURANCE                7.5       6,891,915
CONSUMER PRODUCTS        7.5       6,872,722


REGIONAL ALLOCATION
OCTOBER 31, 1998

[The following represents a pie chart in the original]

Continental Europe ..............  61.03%
United Kingdom ..................  20.55%
Japan ...........................   8.45%
Latin America ...................   1.28%
Pacific .........................   1.23%
Other Assets Less Liabilities ...   7.46%




LARGEST PORTFOLIO HOLDINGS
OCTOBER 31, 1998

SECURITY                                      VALUE
- ----------                               --------------
Magyar Tavkozlesi "Matav"
   (ADRs) (Hungary) ...................    $1,956,500
Vivendi (France) ......................     1,837,397
Novartis (Switzerland) ................     1,735,248
Railtrack Group
   (United Kingdom) ...................     1,713,150
Zurich Allied (Switzerland) ...........     1,712,629
Lafarge (France) ......................     1,662,229
Roche Holding (Switzerland) ...........     1,636,942
Benckiser (Series B) (Netherlands) ....     1,636,255
AXA-UAP (France) ......................     1,619,239
Nestle (Switzerland) ..................     1,562,229


                                       5


<PAGE>

PERFORMANCE AND PORTFOLIO OVERVIEW
SELIGMAN HENDERSON INTERNATIONAL FUND

INVESTMENT RESULTS PER SHARE


TOTAL RETURNS
FOR PERIODS ENDED OCTOBER 31, 1998

<TABLE>
<CAPTION>
                                                                                          AVERAGE ANNUAL
                                                               ---------------------------------------------------------------------
                                                                                          CLASS A       CLASS B       CLASS D
                                                                                           SINCE         SINCE         SINCE
                                                 SIX            One           Five       INCEPTION     INCEPTION     INCEPTION
                                               MONTHS*          Year          Years        4/7/92       4/22/96       9/21/93
- ------------------------------------------------------------------------------------------------------------------------------------
<S>                                             <C>             <C>           <C>          <C>           <C>           <C>

CLASS A**
With Sales Charge                              (15.15)%         1.46%         6.12%         9.34%         n/a           n/a
Without Sales Charge                           (10.94)          6.51          7.16         10.15          n/a           n/a

CLASS B**
With CDSC+                                     (15.75)          0.62           n/a           n/a         3.00%          n/a
Without CDSC                                   (11.32)          5.51           n/a           n/a         4.10           n/a

CLASS D**
With 1% CDSC                                   (12.20)          4.53           n/a           n/a          n/a           n/a
Without CDSC                                   (11.32)          5.51          6.29           n/a          n/a          7.12%

LIPPER INTERNATIONAL
  FUNDS AVERAGE***                             (10.47)          3.99          7.02         10.11++       5.44(0)       7.84(00)

MSCI EAFE INDEX***                              (4.88)          9.95          7.11         10.36+++      4.91(0)       7.64(00)
</TABLE>



<TABLE>
<CAPTION>
NET ASSET VALUE

               OCTOBER 31, 1998        APRIL 30, 1998           OCTOBER 31, 1997
               ----------------        --------------           ----------------
<S>                 <C>                    <C>                      <C>

CLASS A             $17.75                 $19.93                   $17.92
CLASS B              16.93                  19.09                    17.30
CLASS D              16.93                  19.09                    17.30
</TABLE>


CAPITAL GAIN INFORMATION
FOR THE YEAR ENDED OCTOBER 31, 1998

PAID                  $1.222
REALIZED               0.316
UNREALIZED             2.764(000)

     Performance  data  quoted  represent  changes in prices and assume that all
distributions within the periods are invested in additional shares. The rates of
return  will  vary and the  principal  value of an  investment  will  fluctuate.
Shares,  if  redeemed,  may be  worth  more or  lessthan  their  original  cost.
- --------------------------------------------------------------------------------

*    Returns for periods of less than one year are not annualized.

**   Return  figures  reflect any change in price and assume the  investment  of
     dividends  and capital gain  distributions.  Returns for Class A shares are
     calculated  with and without the effect of the initial  4.75% maximum sales
     charge.  Returns for Class A shares also  reflect the effect of the service
     fee of up to 0.25%  under  the  Administration,  Shareholder  Services  and
     Distribution  Plan after  September  21,  1993,  only.  Returns for Class B
     shares  are  calculated  with and  without  the  effect of the  maximum  5%
     contingent  deferred sales charge  ("CDSC"),  charged on  redemptions  made
     within one year of the date of purchase,  declining to 1% in the sixth year
     and 0%  thereafter.  Returns  for Class D shares  are  calculated  with and
     without the effect of the 1% CDSC,  charged on redemptions  made within one
     year of the date of purchase.

***  The Lipper  International  Funds  Average  and the Morgan  Stanley  Capital
     International EAFE (Europe,  Australasia, Far East) Index (MSCI EAFE Index)
     are unmanaged benchmarks that assume reinvestment of dividends.  The Lipper
     International  Funds  Average  excludes the effect of sales charges and the
     MSCI EAFE Index excludes the effect of fees and sales charges.  The monthly
     performance  of the  Lipper  International  Funds  Average  is  used in the
     Performance and Portfolio Overview.  Investors cannot invest directly in an
     average or an index.

+    The CDSC is 5% for periods of one year or less, and 3% since inception.

++   From April 9, 1992.

+++  From March 31, 1992.

0    From April 30, 1996.

00   From September 30, 1993.

000  Represents the per share amount of net unrealized appreciation of portfolio
     securities as of October 31, 1998.

                                        6

<PAGE>

PERFORMANCE AND PORTFOLIO OVERVIEW
SELIGMAN HENDERSON INTERNATIONAL FUND

     This chart  compares a $10,000  hypothetical  investment  made in  Seligman
Henderson  International Fund Class A shares, with and without the initial 4.75%
maximum sales charge,  and assumes that all distributions  within the period are
invested in additional shares,  since the commencement of investment  operations
on April 7, 1992, through October 31, 1998, to a $10,000 hypothetical investment
made in the Lipper  International  Funds Average and the Morgan Stanley  Capital
International EAFE (Europe,  Australasia,  Far East) Index (MSCI EAFE Index) for
the same  period.  It is  important  to keep in mind that  indices and  averages
exclude the effect of fees and/or sales charges.

            Class       Class
              A           A                   Lipper
             With      Without      MSCI       Intl
            Sales       Sales       EAF        Fds
             Load        Load      Index       Avg.
            -----       -----      -----      -----
4/7/92        9524      10000      10000      10000
4/30/92       9635      10117      10050      10483
3/31/92       9524      10000      10000      10000
4/30/92       9635      10117      10050      10483
7/31/92       9444       9917       9962      10328
10/31/92      9437       9908       9843       9875
1/31/93       9662      10145       9995      10099
4/30/93      11270      11833      12267      11459
7/31/93      11445      12017      12771      11826
10/31/93     12718      13354      13572      12995
1/31/94      14012      14712      14412      14473
4/30/94      13646      14329      14346      13874
7/31/94      13971      14670      14613      14063
10/31/94     14353      15071      14980      14388
1/31/95      12724      13361      13808      12890
4/30/95      13530      14207      15189      13765
7/31/95      14438      15160      15675      14632
10/31/95     14175      14884      14970      14286
1/31/96      15146      15903      16084      15205
4/30/96      15916      16712      16973      16025
7/31/96      15173      15932      16277      15506
10/31/96     15370      16138      16588      15929
1/31/97      15845      16637      16442      16635
4/30/97      16278      17092      16873      16952
7/31/97      18605      19535      19281      19325
10/31/97     16881      17725      17403      17593
1/31/98      17331      18197      18183      17996
4/30/98      20187      21196      20110      20444
7/31/98      20785      21824      20381      20608
10/31/98     17979      18878      19128      18299
 
     There are specific risks associated with global investing, such as currency
fluctuations,  foreign taxation,  differences in financial reporting  practices,
and rapid changes in political and economic conditions.

     As  shown  on page 6, the  performances  of  Class B and D  shares  will be
greater than or less than the performance shown for Class A shares, based on the
differences in sales charges and fees paid by shareholders.  Past performance is
not indicative of future investment results.


LARGEST PORTFOLIO CHANGES
During the Six Months Ended October 31, 1998

                      Shares
           ----------------------------
                                                 Holdings
Additions                          Increase      10/31/98
- ---------                          --------      --------
Castorama Dubois
   Investissements (France)           6,000        6,000
Corporacion Bancaria
   de Espana (Spain)                 60,570       60,570
DaimlerChrysler (Germany)            14,494       14,494
Lloyds TSB Group
   (United Kingdom)                  71,000       71,000
Nestle (Switzerland)                    523          733
Roche Holding
   (Switzerland)                        140          140
RWE (Germany)                        24,583       24,583
Suez Lyonnaise
   des Eaux (France)                  7,272        7,272
Total (France)                       10,965       10,965
Unilever (Netherlands)               17,330       17,330

                      Shares
           ----------------------------
                                                 Holdings
REDUCTIONS                         Decrease      10/31/98
- ----------                         --------      --------
Akzo Nobel
   (Netherlands)                     22,372(1)      --
Astra (Class A) (Sweden)             66,829         --
Banco Bilbao Vizcaya
   (Spain)                           83,133(2)      --
Bayer (Germany)                      25,418         --
Carrefour Supermarche
   (France)                           1,924         --
Credit Communal Holding/
   Dexia (Belgium)                    7,245         --
CS Holdings (Switzerland)             8,503         --
Lufthansa (Germany)                  56,466         --
Mol Magyar Olaj-es Gazipari
   (GDRs) (Hungary)                  58,600         --
Petroleo Brasileiro
   "Petrobras" (ADRs) (Brazil)       55,770         --


Largest  portfolio  changes from the previous  period to the current  period are
based on cost of purchases and proceeds from sales of securities.

- --------------------------------------------------------------------------------

(1)  Includes 16,779 shares received as a result of a 4-for-1 stock split.

(2)  Includes 55,422 shares received as a result of a 3-for-1 stock split.

                                       7

<PAGE>

PORTFOLIO OF INVESTMENTS
OCTOBER 31, 1998
Seligman Henderson International Fund
                                              SHARES           VALUE
                                              ------           -----
COMMON STOCKS 92.26%
AUSTRALIA  1.14%
COLONIAL
  Provider of financial services in
  banking, retail insurance, and
  investments (Financial Services)             68,000     $   549,970
RIO TINTO
  International mining company
  (Metals)                                      4,000          50,002
TELSTRA
  Provider of telecommunication
  services (Telecommunications)                25,500          72,537
WESTPAC BANKING
  Provider of banking services
  (Banking)                                    60,700         368,837
                                                          -----------
                                                            1,041,346
                                                          -----------
BRAZIL  0.33%
TELECOMUNICACOES BRASILEIRAS
  "TELEBRAS" (ADRS)
  Provider of telecommunication
  services (Telecommunications)                 4,000         303,750
                                                          -----------
DENMARK  1.34%
  TELE DANMARK
  Provider of telecommunication
  services and equipment
  (Telecommunications)                         11,228       1,224,081
                                                          -----------
FRANCE  12.75%
ACCOR
  Hotel operator and provider
  of related services
  (Entertainment and Leisure)                   5,029       1,057,830
AXA-UAP
  Provider of insurance and
  financial services (Insurance)               14,305       1,619,239
CASTORAMA DUBOIS INVESTISSEMENTS
  Operator of do-it-yourself
  retail stores (Retailing)                     6,000       1,071,738
ELF AQUITAINE
  Oil and gas exploration;
  manufacturer of chemical
  compounds (Resources)                        11,990       1,389,612
ETAM DEVELOPPEMENT
  Retailer of women's clothing
  and intimate apparel (Retailing)              8,869         447,606
LAFARGE
  Producer and seller of
  building materials
  (Construction and Property)                  16,236     $ 1,662,229
SUEZ LYONNAISE DES EAUX
  Financial group which supports
  the communication, electric,
  waste management, and
  water industries (Construction
  and Property)                                  7,272      1,304,189
TOTAL
  Worldwide operator of gas
  and oil (Resources)                           10,965      1,266,865
VIVENDI
  Water purification and
  distribution; energy production
  (Industrial Goods and Services)                8,033      1,837,397
                                                          -----------
                                                           11,656,705
                                                          -----------
GERMANY  7.98%
ADIDAS-SALOMON
  Manufacturer and marketer of
  sporting goods (Retailing)                    8,695       1,056,648
BAYERISCHE HYPO-UND VEREINSBANK
  Provider of universal banking
  services (Banking)                           17,331       1,383,127
DAIMLERCHRYSLER*
  International designer,
  manufacturer, and marketer
  of luxury automobiles, trucks,
  and other vehicles; provider of
  telecommunication, aerospace,
  and financial services
  (Automotive and Related)                     14,494       1,140,942
MANNESMANN
  Plant and machinery
  construction; automotive
  technology (Industrial Goods
  and Services)                                15,332       1,486,852
RWE
  Worldwide  operator  of  services
  in  the  chemicals,  construction
  and  civil engineering,  energy,
  mechanical and plant engineering,
  mining, petroleum, raw materials,
  and waste disposal sectors
  (Resources)                                  24,583       1,322,785

                                       8

<PAGE>

PORTFOLIO OF INVESTMENTS
OCTOBER 31, 1998
Seligman Henderson International Fund

                                              SHARES           VALUE
                                              ------           -----
SIEMENS
  International provider of
  automotive and computer
  products (Manufacturing)                     14,904      $  906,495
                                                           ----------
                                                            7,296,849
                                                           ----------
GREECE  1.34%
HELLENIC TELECOMMUNICATION
 ORGANIZATION
  Provider of telecommunication
  services (Telecommunications)                24,500         557,372
NATIONAL BANK OF GREECE (GDRS)+
  Provider of banking and
  financial services (Banking)                 23,780         671,785
                                                           ----------
                                                            1,229,157
                                                           ----------
HUNGARY  2.14%
  MAGYAR TAVKOZLESI "MATAV" (ADRS)
  Provider of telecommunication
  services (Telecommunications)                72,800       1,956,500
                                                           ----------
IRELAND  1.41%
BANK OF IRELAND
  Provider of banking
  services (Banking)                           70,000       1,289,766
                                                           ----------
ITALY  6.86%
BANCA POPOLARE DI BRESCI
  Provider of commercial banking
  and financial services (Banking)             52,578       1,239,774
ENI
  Refiner and marketer of oil
  and gas (Resources)                         195,910       1,166,843
ISTITUTO NAZIONALE DELLE
  ASSICURAZIONI
  Provider of life and non-life
  insurance products (Insurance)              566,314       1,561,947
TELECOM ITALIA
  PROVIDER OF TELECOMMUNICATION
  services (Telecommunications)               289,001       1,458,246
UNICREDITO ITALIANO
  Provider of banking services
  (Banking)                                   156,950         843,714
                                                           ----------
                                                            6,270,524
                                                           ----------

JAPAN  8.17%
BENESSE
  Provider of educational
  services (Business Services)                  4,300       $ 197,765
BRIDGESTONE
  Retailer of automobile
  tires (Automotive and Related)               14,000         308,704
CANON
  Manufacturer of printers and
  photocopiers  (Business  Services)           15,000         284,333
CREDIT  SAISON
  Provider of
  financial services
  (Financial  Services)                        12,000         283,172
DENNY'S JAPAN
  Restaurant operator  (Restaurants)            6,000         138,491
EAST JAPAN  RAILWAY
  Provider of railway services
  (Transportation)                                 61         362,355
FUJI MACHINE MANUFACTURING
  Manufacturer of assembly
  machines and chips for the
  electronic  industry
  (Industrial Goods and
  Services)                                    10,000         294,864
FUJITSU   SUPPORT  AND  SERVICE
  Electronic  and communication
  equipment  dealer
  (Business  Services)                          8,000         402,321
HONDA MOTOR
  International   operator  of
  motorcycles,   automobiles,   and
  power  products (Automotive and Related)     10,000         300,881
JAPAN TOBACCO
  Tobacco producer (Tobacco)                       38         319,158
KAO
  Manufacturer  of cosmetics
  and personal care products
  (Consumer Products)                          22,000         446,336
KAWASAKI  HEAVY  INDUSTRIES
  Producer  of  transport
  equipment and heavy
  machinery for the military
  (Industrial  Goods and Services)            111,000         243,327
MITSUBISHI GAS CHEMICAL
  Chemical producer
  (Chemicals)                                 112,000         293,660

- -------------------------
See footnotes on page 12.

                                       9


<PAGE>


PORTFOLIO OF INVESTMENTS
OCTOBER 31, 1998
Seligman Henderson International Fund
JAPAN (continued)
                                              SHARES           VALUE
                                              ------           -----
MITSUI
  Trading company active in
  the chemical,  food, gas, metals,
  steel,  and textiles  industries
  (Industrial  Goods and Services)             39,000       $ 208,536
MITSUI CHEMICALS
  Producer of petrochemical
  products (Chemicals)                         84,000         261,406
MITSUI FUDOSAN
  Provider of real estate,  and
  operator of fitness centers
  and leisure  facilities
  (Construction  and Property)                 36,000         239,536
NEC
  Manufacturer and marketer
  of computers and
  telecommunication  devices
  (Consumer Products)                          48,000         356,106
NIPPON   TELEGRAPH & TELEPHONE
  Provider of telecommunication
  services (Telecommunications)                 3,900         305,764
NTT DATA
  Provider of data communication
  and system development services
  (Telecommunications)                             64         271,240
NTT Mobile Communication Network
  "NTTDoCoMo"
  Provider of telecommunication
  services (Telecommunications)                 1,100         398,109
ROHM
  Producer of custom linear
  integrated circuits (Electronics)             2,000         177,090
SECOM
  Security services pioneer
  (Retailing)                                   3,000         223,082
SHOHKOH FUND
  Provider of loans to small-
  and mid-sized companies
  (Financial Services)                          1,100         335,225
SONY
  Developer and manufacturer of
  audio and video equipment
  (Consumer Products)                           4,800         305,351
TAKEFUJI
  Provider of consumer financial
  services (Financial Services)                 6,000       $ 320,309
YORK-BENIMARU
  Supermarket chain operator
  (Retailing)                                   6,600         190,638
                                                          -----------
                                                            7,467,759
                                                          -----------
MEXICO  0.95%
FOMENTO ECONOMICO MEXICANO
  (ADRS)
  Beverage and packaging
  producer; retail store operator
  (Consumer Products)                          21,000         547,313
GRUPO TELEVISA (GDRS)*
  Provider of television and
  other media services
  (Entertainment and Leisure)                  11,700         317,363
                                                          -----------
                                                              864,676
                                                          -----------
NETHERLANDS  6.45%
BENCKISER (SERIES B)
  Producer and supplier of
  household cleaning products
  (Consumer Products)                          28,833       1,636,255
ING Groep
  Worldwide underwriter of
  reinsurance; provider of
  financial and consumer
  credit (Insurance)                           23,539       1,140,306
KONINKLIJKE AHOLD
  Distributor and marketer of
  food products (Retailing)                    31,894       1,061,367
KONINKLIJKE (ROYAL) PHILIPS
  ELECTRONICS
  Consumer and industrial
  electronics (Electronics)                    14,486         771,614
UNILEVER
  International manufacturer of
  personal care products
  (Consumer Products)                          17,330       1,287,143
                                                          -----------
                                                            5,896,685
                                                          -----------
PORTUGAL  1.47%
BANCO PORTUGUES DO ATLANTICO*
  Commercial bank services
  provider (Banking)                            2,671          53,309


- -------------------------
See footnotes on page 12.


                                       10


<PAGE>


PORTFOLIO OF INVESTMENTS
OCTOBER 31, 1998
Seligman Henderson International Fund
PORTUGAL (continued)
                                              SHARES           VALUE
                                              ------           -----
ELECTRICIDADE DE PORTUGAL
  Generator and distributor
  of electricity (Utilities)                   51,688     $ 1,293,980
                                                          -----------
                                                            1,347,289
                                                          -----------

SOUTH KOREA  0.09%
SAMSUNG ELECTRONICS
  Manufacturer of consumer
  and industrial electronics and
  semiconductors (Electronics)                  2,014          82,422
                                                          -----------
SPAIN  6.81%
ACTIVIDADES DE CONSTRUCCION
  Y SERVICIOS
  Designer and builder of public
  works projects, residential
  homes, and other buildings
 (Construction and Property)                   37,174       1,188,373
CENTROS COMERCIALES
  CONTINENTE
  Hypermarket chain selling
  groceries, kitchen appliances,
  auto accessories, and clothing
  (Retailing)                                  38,203       1,141,118
CORPORACION BANCARIA DE ESPANA
  Provider of commercial
  banking services in
  Europe (Banking)                             60,570       1,320,298
ENDESA
  Producer, transmitter, and
  distributor of electricity
  to other utilities
  (Utilities)                                  40,589       1,024,756
TELEFONICA DE ESPANA
  Provider of telecommunication
  services (Telecommunications)                34,295       1,551,214
                                                          -----------
                                                            6,225,759
                                                          -----------
SWEDEN  3.02%
L.M. ERICSSON TELEFON (SERIES B)
  Manufacturer of
  telecommunication equip-
  ment (Telecommunications)                    59,795       1,350,173
NORDBANKEN HOLDING
  Provider of banking, financial,
  loan, and insurance services
  (Banking)                                   234,937       1,410,617
                                                          -----------
                                                            2,760,790
                                                          -----------
SWITZERLAND  9.46%
NESTLE
  Producer of consumer packaged
  goods (Consumer Products)                       733     $ 1,562,229
NOVARTIS
  Manufacturer of pharmaceuticals
  (Health and Household)                          961       1,735,248
ROCHE HOLDING
  Pharmaceutical
  company and chemical
  producer (Health and Household)                 140       1,636,942
SWISSCOM*
  Provider of telecommunication
  networks and services
  (Telecommunications)                          3,054       1,037,361
UBS
  Global provider of institutional
  asset management and private
  banking services (Banking)                    3,530         970,469
ZURICH ALLIED
  Holding company active in
  life insurance and asset
  management (Insurance)                        2,812       1,712,629
                                                          -----------
                                                            8,654,878
                                                          -----------
UNITED KINGDOM  20.55%
ALLIED ZURICH*
  Holding company active in life
  insurance and asset management
  (Insurance)                                  72,500         857,794
BBA GROUP
  International manufacturer of
  textiles and aviation
  equipment (Diversified)                      80,000         494,687
BOOTS
  Retailer of pharmaceuticals
  and beauty products
  (Retailing)                                  50,000         754,749
BRITISH AMERICAN TOBACCO
  Producer and marketer of
  tobacco products (Tobacco)                   72,500         647,289
BRITISH PETROLEUM
  Oil producer, refiner, and
  distributor (Resources)                      90,734       1,338,499

- -------------------------
See footnotes on page 12.


                                       11


<PAGE>


PORTFOLIO OF INVESTMENTS
OCTOBER 31, 1998
Seligman Henderson International Fund
                                              SHARES           VALUE
                                              ------           -----
UNITED KINGDOM (CONTINUED)
BRITISH VITA
  Holding company for worldwide
  companies which manufacture
  fabrics for the furnishing,
  transportation, clothing,
  packaging, and engineering
  industries (Chemicals)                      170,000      $  674,253
BUNZL
  Distributor and manufacturer of
  paper and plastic products
  (Manufacturing)                             225,000       1,039,244
GRANADA GROUP
  Television group with additional
  leisure interests, including
  hotels (Entertainment and
  Leisure)                                     94,000       1,430,725
KINGFISHER
  Producer and retailer of consumer
  goods and merchandise (Retailing)            87,400         762,035
LLOYDS TSB GROUP
  Provider of banking and financial
  services (Banking)                            71,000        878,069
MERSEY DOCKS & HARBOUR
  Operator of facilities on the
  Mersey River (Transportation)                 90,000        670,237
NATIONAL POWER
  Electric power generation
  (Utilities)                                  110,000        953,560
RAILTRACK GROUP
  Provider of rail services
  (Transportation)                              64,101      1,713,150
ROLLS ROYCE
  Aerospace; power generation,
  transmission, and distribution
  systems (Industrial Goods and
  Services)                                   170,600         633,808
ROYAL BANK OF SCOTLAND
  Provider of banking services
  (Banking)                                    84,000       1,103,506

UNITED KINGDOM (continued)

SCOTTISH & NEWCASTLE
  Brewery operator (Consumer
  Products) 60,000 shs.$ 731,989
SMITHKLINE BEECHAM
  Manufacturer and marketer of
  pharmaceutical products; provider
  of health care products and
  services (Health and Household)              50,000         616,266
TESCO
  Supermarket chain (Retailing)               445,500       1,217,101
UNITED UTILITIES
  Provider of water utility
  services (Utilities)                         90,000       1,315,622
WPP GROUP
  Provider of worldwide marketing
  services, including advertising,
  public relations, and market
  research (Media)                            195,500         958,606
                                                       --------------
                                                           18,791,189
                                                       --------------
TOTAL COMMON STOCKS
(Cost $69,802,205)                                         84,360,125

CONVERTIBLE BONDS  0.28%
(Cost $221,126)
JAPAN  0.28%
SANWA INTERNATIONAL
11 1/4%, 7/31/2005
(Financial Services)                       39,000,000**       258,994
                                                       --------------
TOTAL INVESTMENTS  92.54%
(Cost $70,023,331)                                         84,619,119
OTHER ASSETS
  LESS LIABILITIES  7.46%                                   6,822,213
                                                       --------------
NET ASSETS  100.00%                                       $91,441,332
                                                       ==============
- -------------------------

*    Non-income producing security.

**   Principal amount reported in Japanese yen.

+    Rule 144A security.

     Descriptions of companies have not been audited by Deloitte &Touche LLP.

     See Notes to Financial Statements.



                                       12
<PAGE>


INVESTMENT REPORT
Seligman Henderson Emerging Markets Growth Fund

PERFORMANCE REVIEW

Emerging  markets  suffered from the effects of a series of currency  crises and
associated  global  contagion.  Over the  year as a whole,  the Fund had a total
return of -29.43% based on the net asset value of Class A shares.  This compares
to a -30.98% total return  posted by the Morgan  Stanley  Capital  International
Emerging Markets Free Index and to the -31.48% total return posted by the Lipper
Emerging Markets Funds Average.

Fund  management  was more  challenging  than usual.  The strategy  consisted of
trying to avoid  investments in markets with weak  currencies,  while increasing
cash levels during  periods of global  uncertainty,  particularly  in November -
December 1997, and August - September  1998. High levels of cash held during the
attack on the  Brazilian  real were  reinvested  in the markets in October after
confidence  was, to some extent,  restored  through US  interest-rate  cuts, the
strengthening  of the yen, and supportive  statements from the leadership of the
G7 group of industrialized countries.


PORTFOLIO STRATEGY

In  regional  terms,  there  were a number of  significant  trends.  The  Fund's
overweight  position  in Emerging  Europe was  maintained  throughout  the year,
although exposure to Russia was greatly reduced. Exposure to Far Eastern markets
was increased over the year,  but exposure to Latin America was reduced  largely
due to economic uncertainty in Brazil.


PACIFIC REGION

o    The devaluation of the Thai baht in July 1997 greatly  affected the markets
     of the South Pacific  region  (Thailand,  the  Philippines,  Malaysia,  and
     Indonesia). Sentiment in the markets remained weak during the latter months
     of 1997 as  currency  instability  moved  to  North  Pacific  markets.  The
     Indonesian  currency came under attack in January  1998.  There was a brief
     rally in  currencies  and  markets in the first  quarter  of 1998,  but the
     Malaysian   government  was  forced  to  introduce   currency  controls  in
     September.  Other  than in the  Malaysian  ringit,  there  was a  rally  in
     currencies  toward the end of the Fund's year. Market  performances  ranged
     between  a fall of 8.7% in the  Philippine  index to a fall of 76.8% in the
     Indonesian index.

     THE FUND RETAINED  HOLDINGS IN THAILAND AND THE PHILIPPINES  THROUGHOUT THE
     PERIOD.  A SMALL NUMBER OF HOLDINGS WERE HELD IN MALAYSIA  DURING THE FIRST
     QUARTER OF THE YEAR BUT THESE WERE SOLD BEFORE THE  IMPOSITION  OF CURRENCY
     CONTROLS.  TOWARD THE END OF THE FUND'S YEAR, THE FUND ESTABLISHED HOLDINGS
     IN Thai Farmers Bank AND Bangkok Bank AS THE OUTLOOK FOR THAILAND IMPROVED.

o    In the North Pacific  region,  the direction of the markets was dictated by
     currency  moves.  The attack on the Hong Kong dollar in  November  1997 was
     followed  by the  South  Korean  currency  crisis  later in  December.  The
     Taiwanese  market,  following  the  effective  floating of the  currency in
     October,  remained relatively  untouched by the crisis. The Taiwanese index
     fell 14.9%, the South Korean index fell 24.5%, and the China (non-domestic)
     index fell 52.8%.

     THE FUND HELD FEW POSITIONS IN THE REGION UNTIL SEPTEMBER,  WHEN THERE WERE
     SIGNIFICANT  ADDITIONS TO THE PORTFOLIO.  IN CHINA,  THE PORTFOLIO  REMAINS
     FOCUSED ON  INFRASTRUCTURE.  WE HAVE PURCHASED  China Telecom,  Cheung Kong
     Infrastructure, AND China Resources Enterprise. IN SOUTH KOREA, WE SOLD OUR
     HOLDING IN Samsung  Electronics  AND  PURCHASED SK Telecom  Group AND Korea
     Electric Power. IN TAIWAN,  OUR HOLDINGS  REMAINED FOCUSED ON BROADLY BASED
     CLOSED-END FUNDS.

INTERNATIONAL  TEAM:  MONICA BALL, PETER BASSETT  (PORTFOLIO  MANAGER),  ELEANOR
DALE, CHRISTOPHER EDWARDS, DIVYA MATHUR,  KIRSTEEN MORRISON,  LOUISE O'SULLIVAN,
SHEILA SPARKS (ADMINISTRATIVE ASSISTANT)


FUND OBJECTIVE

Seligman Henderson  Emerging Markets Growth Fund, which commenced  operations on
May 28, 1996,  seeks long-term  capital  appreciation by investing  primarily in
equity securities of emerging markets around the world.


                                       13
<PAGE>


INVESTMENT REPORT
Seligman Henderson Emerging Markets Growth Fund

LATIN AMERICA

o    Latin American markets remained volatile with attacks on the Brazilian real
     in  November  -  December  1997,  and  September  1998.  However,  both the
     Brazilian real and Argentine peso were successfully  defended. The region's
     markets rebounded after the mid-September promise of G7 and IMF support for
     the defense of the real.  Throughout  the year,  the Mexican  currency also
     suffered periods of instability, and domestic interest rates were put up in
     its defense.  The performances for the indices of the major markets were as
     follows: Argentina fell 12.1%, Mexico fell 21.0%, and Brazil fell 34.1%.

     OUR CORE EXPOSURE IN LATIN AMERICA  REMAINS  MEXICO,  WHERE THE DEFENSIVELY
     POSITIONED HOLDINGS FOCUS ON BREWERIES (Femsa),  BOTTLERS  (Pepsi-Gemex AND
     Panamerican   Beverages),   AND   TELECOMMUNICATIONS   (Telemex  AND  Grupo
     Iusacell).  HOLDINGS IN BRAZIL AND ARGENTINA  WERE ADJUSTED FOR THE OUTLOOK
     FOR THEIR CURRENCIES.  IN PARTICULAR,  WE SOLD BRAZILIAN  COMPANIES WITH US
     DOLLAR  EXPOSURE  SUCH AS CEMIG AND Sabesp.  HOWEVER,  WE RETAINED OUR CORE
     HOLDINGS OF Telebras AND Petrobras.

EMERGING EUROPE

o    The Emerging European region produced  significantly  diverse performances,
     largely  dependent on the currency and  interest-rate  events for the year.
     Greece,  which  joined  the  European  monetary  system  during the year in
     preparation  to joining  European  Monetary  Union  (EMU),  benefited  from
     currency stability and falling interest rates. The Greek market rose 33.8%.
     Portugal,   which  joins  EMU  on  January  1,  1999,  experienced  similar
     beneficial effects, rising 35.4%.

     By contrast, the Russian market was hit by a severe internal budget deficit
     which led to the collapse of the rouble and the  replacement of a reformist
     government  with a government led by former  communists.  The Russian index
     fell by 85.2%.  The overall  negative  sentiment  toward  emerging  markets
     caused  other  emerging  European  markets  to suffer in  varying  degrees.
     Hungary fell 7.5%,  the Czech  Republic fell 10.2%,  and Poland fell 16.2%.
     Turkey,  affected by high interest  rates and political  uncertainty,  fell
     50.7%.

     THE KEY PORTFOLIO MOVE IN THE REGION WAS AN INCREASE TO THE GREEK WEIGHTING
     THROUGH  THE  PURCHASE OF Alpha  Credit  Bank,  Hellenic  Telecommunication
     (OTE), AND Sarantis. MOST HOLDINGS IN RUSSIA WERE SOLD FOLLOWING THE MARKED
     DETERIORATION OF THE ECONOMIC AND POLITICAL  OUTLOOK AND THE REMAINDER WERE
     SOLD AFTER THE FUND'S  YEAR END.  ALL  HOLDINGS  IN  PORTUGAL  WILL BE SOLD
     BEFORE THE COUNTRY  JOINS EMU.  OF NOTE  DURING THE YEAR WAS THE  INCREASED
     WEIGHTING  OF THE FUND INTO BOTH  POLAND AND HUNGARY  WITH THE  PURCHASE OF
     Elektrim,  Matav,  Powszechny Bank, AND Prokom  Software,  AND THE RE-ENTRY
     INTO THE CZECH REPUBLIC WITH THE PURCHASE OF Ceske Radiokomunikace.

OTHER MARKETS

o    Other  markets in which the Fund has been  invested  were  affected  by the
     general pressures on emerging markets. The Indian market fell 34.2% and the
     South African market fell 25.4%.  Within the markets of the Middle East and
     North  Africa,  the Israeli  (domestic)  index fell 18.7% and the  Egyptian
     index fell 37.4%.

     WE MAINTAINED  LOW  WEIGHTINGS IN INDIA DURING THE PERIOD,  FOCUSING ON THE
     SECULAR  GROWTH  STOCKS OF Mahangar  Telephone  Nigam (THE BOMBAY AND DELHI
     TELEPHONE  SYSTEM) AND THE Indian Tobacco Company (ITC).  THE SOUTH AFRICAN
     WEIGHTING  WAS REDUCED  BEFORE THE WEAKNESS IN SEPTEMBER  BUT  INCREASED IN
     OCTOBER  WHEN  INTEREST  RATES BEGAN TO EASE,  WITH  PURCHASES OF Nedcor (A
     BANK) AND Pepkor (A  RETAILER).  OUR ISRAELI  EXPOSURE  WAS  SWITCHED  FROM
     TECHNOLOGY   SECTOR   HOLDINGS  TO  Bank   Hapoalim   AND  Blue  Square  (A
     SUPERMARKET). WITHIN THE EGYPTIAN PORTFOLIO, WE ADDED Al-ahram Beverages (A
     BREWERY AND BOTTLING COMPANY).

OUTLOOK

Following the  supportive  statements of the leaders of the G7 and recent policy
actions of the US and Japan on various issues,  the outlook for emerging markets
is more  optimistic.  Moreover,  there are positive  developments in each of the
major regions within the Pacific, with trade surpluses likely to boost liquidity
in domestic  markets and provide some stability to the  currencies.  In Emerging
Europe,  convergence and integration is likely to continue to positively  affect
Greek and Central European markets. Although economic growth will be lackluster,
Latin America is likely to benefit from lower real interest rates.  Overall, the
emerging  markets are likely to show some  recovery in the year ahead;  although
market performance will differ widely and progress is likely to be volatile.



                                       14
<PAGE>


PERFORMANCE AND PORTFOLIO OVERVIEW
Seligman Henderson Emerging Markets Growth Fund

COUNTRY ALLOCATION
OCTOBER 31, 1998

                                            MSCI
                                             EMF
                                    FUND    INDEX
                                  -------  -------
CENTRAL/SOUTHERN EUROPE            29.56%   12.12%
    Czech Republic                  1.68     1.17
    Estonia                         0.38       --
    Greece                          7.56     5.47
    Hungary                         6.46     1.40
    Poland                          4.15     0.98
    Portugal                        6.80       --
    Russia                            --     1.24
    Turkey                          2.53     1.86
INDIAN SUBCONTINENT/AFRICA         18.64    24.03
    Egypt                           3.53       --
    India                           4.03     7.58
    Israel                          2.26     3.15
    Jordan                            --     0.18
    Lebanon                         1.23       --
    Pakistan                          --     0.36
    South Africa                    7.59    12.69
    Sri Lanka                         --     0.07
LATIN AMERICA                      27.22    36.55
    Argentina                       4.82     5.26
    Brazil                          7.78    12.80
    Chile                           1.35     4.40
    Columbia                          --     0.56
    Mexico                         13.27    11.75
    Peru                              --     0.98
    Venezuela                         --     0.80
PACIFIC                            18.88    27.30
    China                           4.80     0.76
    Indonesia                         --     1.15
    Malaysia                          --     3.65
    Philippines                     3.21     1.93
    South Korea                     2.68     6.63
    Taiwan                          3.64    10.67
    Thailand                        4.55     2.51
OTHER ASSETS LESS LIABILITIES       5.70       --
                                  ------   ------
TOTAL                             100.00%  100.00%
                                  ======   ======

 
LARGEST INDUSTRIES
OCTOBER 31, 1998
 
[The table below represents a bar chart]

                               Percent of
                               Net Assets
                               ----------
 
TELECOMMUNICATIONS               21.4%       $11,542,415
FINANCIAL SERVICES               17.8%        $9,589,521
RESOURCES                        11.8%        $6,378,038
RETAILING                        11.1%        $5,983,517
CONSUMER GOODS AND SERVICES       8.3%        $4,467,970
 
 
 
REGIONAL ALLOCATION
OCTOBER 31, 1998
 
[The table below represents a pie chart]
 
Central/Southern Europe              29.56%
Latin America                        27.22%
Pacific                              18.88%
Indian Subcontinent/Africa           18.64%
Other Assets Less Liabilities         5.70%
 

LARGEST PORTFOLIO HOLDINGS
OCTOBER 31, 1998


SECURITY                                      VALUE
- ----------                                ------------
Telecel-Comunicacaoes Pessoais
   (Portugal)                              $1,660,356
Magyar Tavkozlesi "Matav" (ADRs)
   (Hungary)                                1,478,125
Fomento Economico Mexicano "Femsa"
   (ADRs) (Mexico)                          1,433,437
Jeronimo Martins (Portugal)                 1,347,367
Korea Electric Power (South Korea)          1,175,445
Kimberly-Clark de Mexico
   (ADRs) (Mexico)                          1,074,315
YPF Sociedad Anonima (ADRs)
   (Argentina)                              1,070,688
Petroleo Brasileiro "Petrobras"
   (Brazil)                                 1,019,365
Panamerican Beverages
   (Class A) (Mexico)                       1,014,525
National Bank of Greece
   (GDRs) (Greece)                          1,003,440



                                       15
<PAGE>


PERFORMANCE AND PORTFOLIO OVERVIEW
Seligman Henderson Emerging Markets Growth Fund


INVESTMENT RESULTS PER SHARE


TOTAL RETURNS
FOR PERIODS ENDED OCTOBER 31, 1998

                                                      AVERAGE ANNUAL
                                                   --------------------
                                                                SINCE
                                       SIX           ONE     INCEPTION
                                      MONTHS*       YEAR      5/28/96
                                      -------      -------    ---------
CLASS A**
With Sales Charge                     (37.96)%      (32.81)%   (14.14)%
Without Sales Charge                  (34.84)       (29.43)    (12.39)

CLASS B**
With CDSC+                            (38.32)       (33.49)    (14.10)
Without CDSC                          (35.08)       (29.99)    (13.02)

CLASS D**
With 1% CDSC                          (35.64)       (30.69)       n/a
Without CDSC                          (34.99)       (29.99)    (13.02)

LIPPER EMERGING MARKETS
  FUNDS AVERAGE***                    (34.11)       (31.48)    (14.67)++

MSCI EMF INDEX***                     (33.41)       (30.98)    (19.25)+++

NET ASSET VALUE

                 OCTOBER 31, 1998       APRIL 30, 1998         OCTOBER 31, 1997
                ------------------      --------------         ----------------
CLASS A                $5.18                $7.95                   $7.34
CLASS B                 5.09                 7.84                    7.27
CLASS D                 5.09                 7.83                    7.27

CAPITAL LOSS INFORMATION
FOR THE YEAR ENDED OCTOBER 31, 1998

REALIZED              $(1.831)
UNREALIZED             (0.465)(0)

     Performance  data  quoted  represent  changes in prices and assume that all
distributions within the periods are invested in additional shares. The rates of
return  will  vary and the  principal  value of an  investment  will  fluctuate.
Shares, if redeemed, may be worth more or less than their original cost.

- -----------------

*    Returns for periods of less than one year are not annualized.

**   Return  figures  reflect any change in price and assume the  investment  of
     dividends  and capital gain  distributions.  Returns for Class A shares are
     calculated  with and without the effect of the initial  4.75% maximum sales
     charge.  Returns  for Class B shares are  calculated  with and  without the
     effect of the maximum 5% contingent deferred sales charge ("CDSC"), charged
     on redemptions  made within one year of the date of purchase,  declining to
     1% in the sixth  year and 0%  thereafter.  Returns  for Class D shares  are
     calculated  with  and  without  the  effect  of the  1%  CDSC,  charged  on
     redemptions made within one year of the date of purchase.

***  The Lipper  Emerging  Markets Funds Average and the Morgan Stanley  Capital
     International  Emerging  Markets Free Index (MSCI EMF Index) are  unmanaged
     benchmarks  that assume  reinvestment  of  dividends.  The Lipper  Emerging
     Markets Funds Average excludes the effect of sales charges and the MSCI EMF
     Index  excludes  the  effect  of  fees  and  sales  charges.   The  monthly
     performance  of the Lipper  Emerging  Markets  Funds Average is used in the
     Performance and Portfolio Overview.  Investors cannot invest directly in an
     average or an index.

+    The CDSC is 5% for periods of one year or less, and 3% since inception.

++   From May 30, 1996.

+++  From May 31, 1996.

0    Represents the per share amount of net unrealized depreciation of portfolio
     securities as of October 31, 1998.



                                       16
<PAGE>


PERFORMANCE AND PORTFOLIO OVERVIEW
Seligman Henderson Emerging Markets Growth Fund

     This chart  compares a $10,000  hypothetical  investment  made in  Seligman
Henderson  Emerging  Markets  Growth  Fund,  with and without the initial  4.75%
maximum sales charge for Class A shares,  with the 3% contingent  deferred sales
charge ("CDSC") for Class B shares,  and without the 1% CDSC for Class D shares,
and assumes that all distributions  within the period are invested in additional
shares,  since the  commencement of operations on May 28, 1996,  through October
31,  1998,  to a $10,000  hypothetical  investment  made in the Lipper  Emerging
Markets  Funds Average and the Morgan  Stanley  Capital  International  Emerging
Markets Free Index (MSCI EMF Index) for the same period. It is important to keep
in mind that  indices  and  averages  exclude  the effect of fees  and/or  sales
charges.

[The table below represents a line chart]

EMERGING MARKETS GROWTH FUND
                                                     LIPPER
           Class A   Class B                        EMERGING
              With   Without    Class B    Class D   MARKET      MSCI
             Sales     Sales     With     Without    FUNDS       EMF
            Charge    Charge      CDSL      CDSL    AVERAGE     INDEX

5/28/96       9520     10000     10000     10000     10000     10000
7/31/96       9013      9468      9454      9454      9483      9375
10/31/96      9040      9496      9468      9468      9557      9439
1/31/97      10173     10686     10630     10644     10736     10299
4/30/97      10653     11190     11106     11106     10963     10476
7/31/97      12453     13081     12969     12969     12378     11522
10/31/97      9787     10280     10182     10182      9939      8639
1/31/98       9173      9636      9524      9524      9057      7855
4/30/98      10600     11135     10980     10966     10336      8953
7/31/98       9000      9455      9300      9300      8486      7135
10/31/98      6907      7255      6915      7129      6810      5962
 
   There are specific risks associated with global investing, such as currency
fluctuations, foreign taxation, differences in financial reporting practices,
and rapid changes in political and economic conditions. Past performance is not
indicative of future investment results.


LARGEST PORTFOLIO CHANGES
DURING THE SIX MONTHS ENDED OCTOBER 31, 1998

                                                SHARES
                                        ----------------------
                                                      HOLDINGS
ADDITIONS                               INCREASE      10/31/98
- ---------                               --------      --------
Bank Hapoalim (Israel)                   245,000       245,000
Blue Square Chain Investments
   and Properties (Israel)                61,100        61,100
Coca-Cola Beverages (Poland)             342,600       342,600
Companhia Vale do Rio
   Doce (ADRs) (Brazil)                   60,000        60,000
Elektrim Spolka Akcyjna
   (Poland)                               60,000        60,000
Kimberly-Clark de Mexico
   (ADRs) (Mexico)                        75,000        75,000
National Bank of Greece
   (GDRs) (Greece)                        29,600        35,520(1)
Telesp Participacoes
   (Brazil)                           38,000,000    38,000,000
Turkiye Is Bankasi "Isbank"
   (GDRs) (Turkey)                       182,500       182,500
YPF Sociedad Anonima
   (ADRs) (Argentina)                     37,000        37,000


                                                SHARES
                                        ----------------------
                                                      HOLDINGS
REDUCTIONS                              DECREASE      10/31/98
- ----------                              --------      --------
Distribucion y Servicio
   (ADRs) (Chile)                         60,700          --
Formosa Growth Fund
   (Taiwan)                               51,000          --
IRSA Inversiones y
   Representaciones
   (GDRs) (Argentina)                     62,000          --
Maillis (Greece)                          71,360(2)     36,640
Portugal Telecom (ADRs)
   (Portugal)                             24,000          --
Richter Gedeon (GDRs)
   (Hungary)                              13,900         4,900
Sonae Investimentos
   (Portugal)                             19,000        13,000
Synnex Technology
   International
   (GDRs) (Taiwan)                        57,000          --
Telefonica de Argentina (ADRs)
   (Argentina)                            39,000          --
Telefonica del Peru
   (ADRs) (Peru)                          78,300          --

Largest  portfolio  changes from the previous  period to the current  period are
based on cost of purchases and proceeds from sales of securities.


- ----------------
(1)  Includes 5,920 shares received in a 20% bonus issue.

(2)  Includes 54,000 shares received in a 100% bonus issue.

                                       17

<PAGE>

PORTFOLIO OF INVESTMENTS
OCTOBER 31, 1998
Seligman Henderson Emerging Markets Growth Fund

                                              SHARES          VALUE
                                            ---------      -----------
COMMON STOCKS  94.09%
ARGENTINA  4.82%
BANCO RIO DE LA PLATA (ADRS)
   Provider of commercial and
   investment banking services
   (Financial Services)                       110,000        $ 990,000
PEREZ COMPANC (ADRS)
   Worldwide producer of oil
   and gas (Resources)                         55,000          539,159
YPF SOCIEDAD ANONIMA (ADRS)
   Worldwide producer of oil
   and gas (Resources)                         37,000        1,070,688
                                                           -----------
                                                             2,599,847
                                                           -----------
BRAZIL  7.78%
COMPANHIA BRASILEIRO DE
   DISTRIBUICAO GRUPO PAO
   DE ACUCAR (ADRS)
   Operator of supermarkets,
   consumer electronics, and
   appliance stores (Retailing)                35,000          564,375
COMPANHIA VALE DO
   RIO DOCE (ADRS)
   Mining and transportation
   company (Resources)                         60,000          905,376
PETROLEO BRASILEIRO "PETROBRAS"
   Oil and gas producer and
   distributor (Resources)                  8,000,000        1,019,365
TELECOMUNICACOES BRASILEIRAS
   "TELEBRAS" (ADRS)
   Provider of telecommunication
   services (Telecommunications)               11,000          835,312
TELESP PARTICIPACOES*
   Provider of telecommunication
   services
   (Telecommunications)                    38,000,000         876,016
                                                           -----------
                                                             4,200,444
                                                           -----------
CHILE  1.35%
ENERSIS (ADRS)
   Provider of electric services
   (Electric Utilities)                        35,000          730,625
                                                           -----------
 
 
- -------------
See footnotes on page 22.
 
 
CHINA  4.80%)
CHEUNG KONG INFRASTRUCTURE
   HOLDINGS
   Real estate investment and
   development (Construction
   and Property)                              240,000        $ 610,498
CHINA RESOURCES ENTERPRISE
   Real estate investment
   holding company
   (Construction and Property)                450,000          601,395
CHINA TELECOM (HONG KONG)*
   Provider of cellular
   telecommunication services
   (Telecommunications)                       420,000          789,076
HUANENG POWER
   INTERNATIONAL (ADRS)*
   Developer and manufacturer
   of coal-fired power plants
   (Electric Utilities)                        43,000          591,250
                                                           -----------
                                                             2,592,219
                                                           -----------
CZECH REPUBLIC  1.68%
CESKE RADIOKOMUNIKACE
   (GDRS)*+
   Provider of telecommunication
   services (Telecommunications)               30,000          907,500
                                                           -----------
EGYPT  3.53%
AL-AHRAM BEVERAGES (GDRS)
   Producer of beer and soft drinks
   (Consumer Goods and Services)               16,400          537,098
PAINTS AND CHEMICAL INDUSTRIES
   Manufacturer of industrial and
   architectural paints and
   printing inks (Manufacturing)               52,200          476,586
SUEZ CEMENT (GDRS)+
   Cement manufacturer
   (Construction and Property)                 58,000          891,831
                                                           -----------
                                                             1,905,515
                                                           -----------
ESTONIA  0.38%
SOCIETIE GENERAL BALTIC
   REPUBLICS FUND
   Investor in the Baltic
   Republics (Financial Services)               3,200          204,800
                                                           -----------



                                       18
<PAGE>


PORTFOLIO OF INVESTMENTS
OCTOBER 31, 1998
Seligman Henderson Emerging Markets Growth Fund

                                              SHARES          VALUE
                                            ---------      -----------
GREECE  7.56%
ALPHA CREDIT BANK
Provider of banking services
(Financial Services)                            8,000        $ 639,699
HELLENIC TELECOMMUNICATION
   ORGANIZATION
   Provider of telecommunication
   services (Telecommunications)               30,555          695,123
MAILLIS
   Producer of plastics
   and packaging materials
   (Manufacturing)                             36,640          621,260
NATIONAL BANK OF GREECE (GDRS)+
   Provider of banking services
   (Financial Services)                        35,520        1,003,440
SARANTIS
   Manufacturer and distributor
   of cosmetics
   (Drugs and Health Care)                     63,000          725,579
STET HELLAS TELECOMMUNICATIONS
   (ADRS)+
   Provider of mobile
   telecommunication services
   (Telecommunications)                        15,000          394,688
                                                           -----------
                                                             4,079,789
                                                           -----------
HUNGARY  6.46%
MAGYAR TAVKOZLESI
   "MATAV" (ADRS)
   Provider of telecommunication
   services (Telecommunications)               55,000        1,478,125
MOL MAGYAR OLAJ-ES
   GAZIPARI (GDRS)+
   Oil and gas producer and
   distributor (Resources)                     15,000          341,625
MOL MAGYAR OLAJ-ES
   GAZIPARI (GDRS)
   Oil and gas producer and
   distributor (Resources)                     25,000          554,375
OTP BANK (GDRS)+
   Provider of commercial banking
   services (Financial Services)               11,220          406,725
OTP BANK (GDRS)
   Provider of commercial banking
   services (Financial Services)               15,000          543,750


- -------------
See footnotes on page 22.


HUNGARY (CONTINUED)
RICHTER GEDEON (GDRS)
   Manufacturer of pharmaceuticals
   and cosmetics (Drugs and
   Health Care)                                 4,900        $ 164,150
                                                           -----------
                                                             3,488,750
                                                           -----------
INDIA  4.03%
ITC (GDRS)+
   Holding company with operations
   in tobacco, hotels, financial
   services, paper, packaging and
   printing, real estate, and
   international export
   (Diversified)                               44,000          880,000
MAHANGAR TELEPHONE
   NIGAM (GDRS)+
   Provider of telecommunication
   services (Telecommunications)               60,000          658,500
MAHANGAR TELEPHONE
   NIGAM (GDRS)
   Provider of telecommunication
   services (Telecommunications)               10,000          109,750
VIDESH SANCHAR NIGAM (GDRS)+
   Provider of international
   telecommunication services
   (Telecommunications)                        51,000          525,300
                                                           -----------
                                                             2,173,550
                                                           -----------
ISRAEL  2.26%
BANK HAPOALIM
   Provider of banking services
   (Financial Services)                       245,000          441,550
BLUE SQUARE CHAIN INVESTMENTS
   AND PROPERTIES*
   Operator of supermarkets
   (Retailing)                                 61,100          778,389
                                                           -----------
                                                             1,219,939
                                                           -----------
LEBANON  1.23%
BANQUE AUDI (GDRS)+
   Commercial bank
   (Financial Services)                        24,600          664,815
                                                           -----------
MEXICO  13.27%
FOMENTO ECONOMICO
   MEXICANO "FEMSA" (ADRS)
   Beverage and packaging
   producer; retail store operator
   (Consumer Goods and Services)               55,000        1,433,437



                                       19
<PAGE>

MEXICO (CONTINUED)
GRUPO FINANCIERO BANAMEX
   ACCIVAL "BANACCI" (SERIES B)*
   Provider of banking services
   (Financial Services)                       655,000        $ 660,711
GRUPO IUSACELL (ADRS)*
   Provider of wireless
   telecommunication services
   (Telecommunications)                        32,700          224,813
GRUPO TELEVISA (GDRS)*
   Provider of television and
   other media services
   (Leisure and Hotels)                        36,700          995,488
KIMBERLY-CLARK DE MEXICO (ADRS)
   Manufacturer and retailer of
   consumer and industrial paper
   products (Retailing)                        75,000        1,074,315
PANAMERICAN BEVERAGES
   (CLASS A)
   Producer of Coca-Cola and
   other beverages (Consumer
   Goods and Services)                         50,100        1,014,525
PEPSI-GEMEX (GDRS)
   Vendor of Pepsi soft
   drink products (Consumer
   Goods and Services)                        117,000          760,500
TELEFONOS DE MEXICO "TELEMEX"
   (CLASS L ADRS)
   Provider of telecommunication
   services (Telecommunications)               19,000        1,003,438
                                                           -----------
                                                             7,167,227
                                                           -----------
PHILIPPINES  3.21%
PHILIPPINE LONG DISTANCE
   TELEPHONE
   Telephone utility
   (Telecommunications)                        30,000          717,472
PHILIPPINE LONG DISTANCE
   TELEPHONE (ADRS)
   Telephone utility
   (Telecommunications)                        20,000          487,500
SM PRIME HOLDINGS
   Developer and operator
   of retail properties
   (Construction and Property)              3,150,000          530,855
                                                           -----------
                                                             1,735,827
                                                           -----------

- -------------
See footnotes on page 22.


POLAND  4.15%
COCA-COLA BEVERAGES*
   Worldwide manufacturer and
   distributor of carbonated
   flavored soft drinks
   (Consumer Goods
   and Services)                              342,600        $ 722,410
ELEKTRIM SPOLKA AKCYJNA
   Exporter/importer active in the
   power equipment, electrical
   machinery, telecommunication,
   cable, and lighting technology
   industries (Electronics)                    60,000          718,143
POWSZECHNY BANK KREDYTOWY
   Provider of financial services
   (Financial Services)                        20,000          420,377
PROKOM SOFTWARE (GDRS)
   Provider of information
   technology solutions
   (Computer and Technology
   Related)                                    19,100          379,612
                                                           -----------
                                                             2,240,542
                                                           -----------
PORTUGAL  6.59%
JERONIMO MARTINS
   Retailer of food and
   consumer products (retailing)               31,232        1,347,367
SONAE INVESTIMENTOS
   Hypermarket operator
   (Retailing)                                 13,000          548,636
TELECEL-COMUNICACAOES PESSOAIS*
   Cellular communication
   operator (Telecommunications)                9,050        1,660,356
                                                           -----------
                                                             3,556,359
                                                           -----------
SOUTH AFRICA  7.59%
ANGLO-AMERICAN CORPORATION
   OF SOUTH AFRICA
   International provider of
   financial services to the
   mining industry (Resources)                 19,200          624,941



                                       20
<PAGE>


PORTFOLIO OF INVESTMENTS
OCTOBER 31, 1998
Seligman Henderson Emerging Markets Growth Fund

                                              SHARES          VALUE
                                            ---------      -----------
SOUTH AFRICA (CONTINUED)
DIMENSION DATA HOLDINGS*
   Investment holding company of
   technology groupings including
   communications, distribution,
   software, services, interactive
   technologies, and the Internet
   (Computer and
   Technology Related)                        184,000        $ 842,923
LIBERTY LIFE ASSOCIATION OF AFRICA
   Provider of life and health
   insurance (Financial Services)              43,000          735,829
NEDCOR
   International provider of
   personal and corporate
   financial services
   (Financial Services)                        37,500          748,663
PEPKOR
   Holding company for operators
   of clothing and department
   stores, supermarkets, and
   jewelry retailers (Retailing)              155,000          690,731
SASOL
   Fuel and chemical producer
   (Diversified)                               93,000          455,053
                                                           -----------
                                                             4,098,140
                                                           -----------
SOUTH KOREA  2.68%
KOREA ELECTRIC POWER
   Electric power generator and
   supplier (Electric Utilities)               66,000        1,175,445
SAMSUNG ELECTRONICS
   Manufacturer of consumer
   and industrial electronics
   and semiconductors
   (Manufacturing)                              2,191           89,666
SK TELECOM GROUP (ADRS)
   Provider of mobile
   telecommunication and
   paging services
   (Telecommunications)                        17,400          179,446
                                                           -----------
                                                             1,444,557
                                                           -----------


- -------------
See footnotes on page 22.


TAIWAN  3.64%
CHINA STEEL (GDRS)
   Producer of steel and steel
   products (Resources)                        36,000        $ 495,900
THE ROC TAIWAN FUND
   Closed-end fund investing
   in Taiwan (Miscellaneous)                   80,000          530,000
TAIWAN OPPORTUNITIES FUND*
   Closed-end fund investing
   in Taiwan (Miscellaneous)                   74,000          941,280
                                                           -----------
                                                             1,967,180
                                                           -----------
THAILAND  4.55%
BANGKOK BANK
   Provider of retail, commercial,
   and corporate banking services
   (Financial Services)                       440,000          669,020
PTT EXPLORATION AND PRODUCTION
   PUBLIC COMPANY
   Producer of natural gas
   (Resources)                                 86,000          826,609
THAI FARMERS BANK
   PUBLIC COMPANY*
   Provider of banking services
   (Financial Services)                       760,000          959,544
                                                           -----------
                                                             2,455,173
                                                           -----------
TURKEY  2.53%
MIGROS TURK
   Retailer of food and consumer
   products (Retailing)                     1,018,750          866,449
TURKIYE IS BANKASI
   "ISBANK" (GDRS)+
   Provider of banking services
   (Financial Services)                       182,500          500,598
                                                           -----------
                                                             1,367,047
                                                           -----------
TOTAL COMMON STOCKS
   (Cost $55,711,798)                                       50,799,845
                                                           -----------



                                       21
<PAGE>



PORTFOLIO OF INVESTMENTS
OCTOBER 31, 1998
Seligman Henderson Emerging Markets Growth Fund

                                            PRINCIPAL
                                              AMOUNT          VALUE
                                            ---------      -----------
CORPORATE BONDS  0.21%
  (Cost $92,712)

PORTUGAL  0.21%
JERONIMO MARTINS
   0%, 12/30/2004
   (Retailing)                               16,875**     $    113,255
                                                           -----------
TOTAL INVESTMENTS  94.30%
  (Cost $55,804,510)                                        50,913,100
OTHER ASSETS
  LESS LIABILITIES  5.70%                                    3,079,165
                                                           -----------
NET ASSETS  100.00%                                        $53,992,265
                                                           ===========

- ----------------

*    Non-income producing security.

**   Principal amount reported in units of 1,000 Portuguese escudos.

+    Rule 144A security.

Descriptions  of  companies  have not been audited by Deloitte & Touche LLP. See
Notes to Financial Statements.



                                       22
<PAGE>


INVESTMENT REPORT
Seligman Henderson Global Growth Opportunities Fund


PERFORMANCE REVIEW

For the twelve months ended October 31, 1998,  Seligman  Henderson Global Growth
Opportunities  Fund posted a total  return of 9.52% based on the net asset value
of Class A shares,  compared to the 5.31% total return of its peers, as measured
by the Lipper Global Funds Average.  Stocks around the world, as measured by the
Morgan Stanley Capital  International  World Index (MSCI World Index),  posted a
total return of 15.69% for the same period.

The past calendar year was  characterized  by several  distinct phases of global
market activity.  From  mid-January to mid-July,  world markets rose strongly by
approximately 25%, led by Continental Europe and fueled by expectations of lower
inflation and interest rates.  After  mid-July,  the combination of Russian debt
default,   speculative  attacks  against  emerging  market  currencies,   and  a
worse-than-expected  economic impact from Asia upon the rest of the world led to
sharp  market  corrections.  During  October,  in response  to the  deflationary
threats facing global economic  activity,  interest rates were cut in many parts
of the world and a  coordinated  program of support  for the  world's  financial
system was implemented. As a result, many markets recovered confidence.

FUND OBJECTIVE

Seligman Henderson Global Growth  Opportunities Fund, which commenced operations
on November 1, 1995, seeks long-term capital appreciation by investing primarily
in the  stocks of  companies  that have the  potential  to benefit  from  global
economic or social trends.

                                    [PHOTO]

INTERNATIONAL TEAM: (FROM LEFT) BEN ELWES, DAVID THORNTON,  MICHAEL WOOD-MARTIN,
PETER BASSETT, (SEATED) STACEY NAVIN, NITIN MEHTA (PORTFOLIO MANAGER),  KIRSTEEN
MORRISON

During the year,  the Fund's bias for stocks with higher  earnings  growth and a
preference for Continental  Europe proved to be the major positive  factors.  In
contrast, the investments in Asia and other emerging markets negatively impacted
performance.  However,  the exposure to these markets was reduced  significantly
through the year.


PORTFOLIO STRATEGY

The Fund remained  broadly invested in the four major growth themes : QUALITY OF
LIFE (36%), PRODUCTIVITY (23%), CONSUMPTION (24%) and GLOBAL TRADE (12%). During
the year, we reduced  exposure to the  Productivity  theme -- in particular,  by
reducing  investments  in Asian  technology  stocks  -- and at the same  time we
increased  investment in the more stable Quality of Life theme with its emphasis
on health care  stocks.  Within each  theme,  we shifted the Fund's  investments
toward those with greater earnings reliability.

                                    [PHOTO]

US TEAM: (FROM LEFT) MICHELLE BORRE, DAVE LEVY,  SHELIA GRAYSON  (ADMINISTRATIVE
ASSISTANT),  (SEATED) MARION S. SCHULTHEIS  (PORTFOLIO MANAGER);  (NOT PICTURED)
CRAIG CHODASH

                                       23

<PAGE>


QUALITY OF LIFE

o    As earnings growth became more uncertain  around the world, we added to the
     Quality of Life  sub-themes  of health care and savings.  During the recent
     market turmoil, a "flight to quality" benefited the stocks in this theme.

          DURING THE PAST YEAR, WE ADDED SEVERAL DRUG STOCKS, NAMELY Lilly (Eli)
          IN THE US,  SmithKline  Beecham IN THE UK, AND Astra IN SWEDEN.  WHILE
          THE  GLOBAL  DRUG  STOCKS'  VALUATIONS  REFLECT  THEIR  BETTER  GROWTH
          PROSPECTS,  WE THINK  THEY WILL  PROVIDE  GREATER  EARNINGS  SAFETY IN
          VOLATILE TIMES. IN ADDITION,  WITH RISING INFLOWS INTO MUTUAL FUNDS IN
          EUROPE, WE ADDED Skandia IN SWEDEN AND Helvetia Patria IN SWITZERLAND,
          BOTH  BENEFICIARIES  OF THE RISING  DEMAND FOR  SAVINGS  PRODUCTS  AND
          FALLING INTEREST RATES.

PRODUCTIVITY

o    The deterioration in economic  activity,  first in Asia and then around the
     world,  reduced the prospects for many  technology  stocks.  In particular,
     semiconductor and PC businesses faced a difficult environment. In response,
     we reduced the Fund's exposure to technology stocks.

          SOUTHEAST   ASIA'S   FINANCIAL   CRISIS,   WHICH   BEGAN   LAST  YEAR,
          SIGNIFICANTLY  REDUCED THE OUTLAYS FOR CAPITAL EXPENDITURE,  INCLUDING
          TECHNOLOGY  UPGRADES.  AS A RESULT,  WE SOLD ALMOST ALL OF OUR RELATED
          INVESTMENTS IN THAT REGION, INCLUDING Silicon Precisionware,  Advanced
          Systems,  Hotung,  Synnex,  Electronic  Resources,  AND Datacraft.  IN
          EUROPE,  WHERE THE PREPARATION FOR EUROPEAN MONETARY UNION AND THE NEW
          MILLENNIUM   PUSHED  UP  THE  DEMAND   FOR   SOFTWARE   AND   REGIONAL
          COMMUNICATION,  WE ADDED Cap Gemini,  EUROPE'S LARGEST SOFTWARE HOUSE,
          AND Equant, A PROVIDER OF DATA NETWORKS TO MULTINATIONAL BUSINESSES.

CONSUMPTION

o    Although the aggregate  exposure to the  Consumption  theme hardly  changed
     during the year,  there was a  significant  shift in exposure from Asia and
     Emerging  Markets toward Europe.  The economic malaise in Asia has severely
     dented consumer confidence,  while in Europe, rising employment and falling
     interest rates had the opposite effect.

          WE SOLD A NUMBER OF STOCKS IN JAPAN,  HONG KONG,  AND  SINGAPORE,  ALL
          RELATED TO CONSUMPTION. AT THE SAME TIME, WE INVESTED IN TWO RETAILERS
          IN SPAIN  WHERE  CONSUMPTION  GROWTH  HAS BEEN  EXCEPTIONALLY  STRONG:
          Centros Comerciales  CONTINENTE,  WHICH OPERATES A NATIONWIDE CHAIN OF
          SUPERMARKETS,  AND Superdiplo,  WHICH ALSO OPERATES SUPERMARKETS,  BUT
          MAINLY IN THE SPANISH  ISLANDS.  IN THE SAME TREND,  WE ADDED  ANOTHER
          SUPERMARKET CHAIN, Kroger, IN THE US.

GLOBAL TRADE

o    The major emphasis is in the telecommunications  sub-theme. This sector has
     performed  well in the past  year,  with many  companies  providing  either
     stability or growth in earnings fueled by more communication traffic and/or
     cost-cutting.

          OF NOTE,  WE ADDED  Matav IN HUNGARY  AND  Hellenic  Telecommunication
          Organization IN GREECE. BOTH SHOULD BENEFIT FROM AN EXPANSION IN THEIR
          NETWORKS AND THE  APPLICATION OF NEW  TECHNOLOGY TO OFFER  VALUE-ADDED
          SERVICES.

OUTLOOK

World stock markets have been  reflecting the global  economy's  synchronization
toward slower growth. At times like these, profit growth becomes more scarce and
uncertain.  Such concern has raised market volatility  everywhere.  However,  we
believe a global  economic  recession  accompanied  by  prolonged  deflation  is
unlikely, since appropriate action by the major central banks would be a remedy.
Therefore,  excessive  pessimism does not seem warranted either. In our opinion,
the current cyclical downturn in economic  activity and corporate  profitability
around the world should dissipate as we approach the end of the millennium.

The world has an excess of industrial capacity.  Until demand rises sufficiently
to meet it, pricing power will be scarce in industrial goods markets. Businesses
in the  service  sectors  are  likely  to fare  better  in such an  environment.
Fortunately, the Fund's investments are largely in these sectors.

Also, during times of subdued profit advance, high quality growth stocks tend to
perform well.  When there is much  near-term  uncertainty,  it is appropriate to
look at the secular  trends  which are most likely to  powerfully  drive  wealth
creation. In accordance with this philosophy, we will continue to use a thematic
approach to identify superior growth opportunities in which to invest.

                                       24


<PAGE>

PERFORMANCE AND PORTFOLIO OVERVIEW
Seligman Henderson Global Growth Opportunities Fund

COUNTRY ALLOCATION
OCTOBER 31, 1998
                                                      MSCI
                                                     WORLD
                                           FUND       INDEX
                                         -------    -------
CONTINENTAL EUROPE                         41.89%     23.99%
    Austria                                   --       0.16
    Belgium                                   --       0.89
    Denmark                                   --       0.45
    Finland                                 3.61       0.55
    France                                  8.94       4.49
    Germany                                 4.42       4.96
    Greece                                  1.37         --
    Hungary                                 1.27         --
    Ireland                                 1.87       0.22
    Italy                                   2.05       2.28
    Netherlands                             4.31       2.57
    Norway                                  1.76       0.23
    Portugal                                  --       0.35
    Spain                                   7.98       1.60
    Sweden                                  3.35       1.31
    Switzerland                             0.96       3.93
JAPAN                                       5.58      10.22
LATIN AMERICA                               0.98         --
    Brazil                                  0.25         --
    Mexico                                  0.73         --
PACIFIC                                     1.02       2.82
    Australia                               0.41       1.29
    China                                   0.59         --
    HongKong                                  --       1.12
    New Zealand                               --       0.09
    Singapore                                 --       0.32
    South Korea                             0.02         --
UNITED KINGDOM                             10.35      10.43
UNITED STATES                              32.61      50.61
OTHER                                         --       1.93
    Canada                                    --       1.93
OTHER ASSETS LESS LIABILITIES               7.57         --
                                        --------   --------
TOTAL                                     100.00%    100.00%
                                        ========   ========

LARGEST INDUSTRIES
OCTOBER 31, 1998

[The table below represents a bar chart]

Drugs and Health Care                13.0%    $23,951,447
Telecommunication                     9.4     $17,397,898
Financial Services                    8.8     $16,161,471
Retailing                             8.3     $15,373,465
Consumer Goods and Services           7.7     $14,180,265


REGIONAL ALLOCATION
OCTOBER 31, 1998

Continental Europe                 41.89%
United States                      32.61
United Kingdom                     10.35
Japan                               5.58
Pacific                             1.02
Latin America                       0.98
Other Assets Less Liabilities       7.57


[The table below represents a pie chart]

LARGEST PORTFOLIO HOLDINGS
OCTOBER 31, 1998

SECURITY                                      VALUE
- ----------                                -------------
Nokia (Series A) (Finland)                 $5,372,029
Cap Gemini (France)                         4,862,957
L.M. Ericsson Telefon (Series B)
   (Sweden)                                 3,799,089
Bristol-Myers Squibb (US)                   3,637,506
Microsoft (US)                              3,505,497
Merck (US)                                  3,502,975
Elan (ARs) (Ireland)                        3,452,330
Centros Comerciales
   Continente (Spain)                       3,405,163
Philip Morris (US)                          3,379,363
CNP Assurances (France)                     3,336,734

                                       25

<PAGE>


PERFORMANCE AND PORTFOLIO OVERVIEW
Seligman Henderson Global Growth Opportunities Fund


INVESTMENT RESULTS PER SHARE


TOTAL RETURNS
FOR PERIODS ENDED OCTOBER 31, 1998

<TABLE>
<CAPTION>
                                                               AVERAGE ANNUAL
                                                   -------------------------------------
                                                                  CLASS B
                                                                   SINCE         SINCE
                                       SIX           ONE         INCEPTION     INCEPTION
                                     MONTHS*         YEAR          4/22/96       11/1/95
                                    ---------     -------        ---------     ---------
<S>                                 <C>              <C>          <C>            <C>
CLASS A**
With Sales Charge                   (14.86)%         4.31%          n/a          10.34%
Without Sales Charge                (10.60)          9.52           n/a          12.17

CLASS B**
With CDSC+                          (15.26)          3.76          7.33%           n/a
Without CDSC                        (10.82)          8.76          8.38            n/a

CLASS D**
With 1% CDSC                        (11.71)          7.76           n/a            n/a
Without CDSC                        (10.82)          8.76           n/a          11.33

LIPPER GLOBAL FUNDS AVERAGE***       (9.83)          5.31          9.62          12.48?


MSCI WORLD INDEX***                  (2.85)         15.69         14.23++        16.59(0)
</TABLE>
NET ASSET VALUE

                 OCTOBER 31, 1998      APRIL 30, 1998      OCTOBER 31, 1997
                ------------------     ---------------    ------------------
CLASS A               $9.62                $10.81               $9.20
CLASS B                9.40                 10.59                9.06
CLASS D                9.40                 10.59                9.06

CAPITAL GAIN INFORMATION
FOR THE YEAR ENDED OCTOBER 31, 1998

PAID                  $0.418
REALIZED               0.020
UNREALIZED             2.492(00)

     Performance  data  quoted  represent  changes in prices and assume that all
distributions within the periods are invested in additional shares. The rates of
return  will  vary and the  principal  value of an  investment  will  fluctuate.
Shares, if redeemed, may be worth more or less than their original cost.


- --------------------------------------------------------------------------------

*    Returns for periods of less than one year are not annualized.

**   Return  figures  reflect any change in price and assume the  investment  of
     dividends  and capital gain  distributions.  Returns for Class A shares are
     calculated  with and without the effect of the initial  4.75% maximum sales
     charge.  Returns  for Class B shares are  calculated  with and  without the
     effect of the maximum 5% contingent deferred sales charge ("CDSC"), charged
     on redemptions  made within one year of the date of purchase,  declining to
     1% in the sixth  year and 0%  thereafter.  Returns  for Class D shares  are
     calculated  with  and  without  the  effect  of the  1%  CDSC,  charged  on
     redemptions made within one year of the date of purchase.

***  The  Lipper   Global  Funds   Average  and  the  Morgan   Stanley   Capital
     International World Index (MSCI World Index) are unmanaged  benchmarks that
     assume reinvestment of dividends.  The Lipper Global Funds Average excludes
     the effect of sales charges and the MSCIWorld  Index excludes the effect of
     fees and sales charges.  The monthly performance of the Lipper Global Funds
     Average is used in the Performance and Portfolio Overview. Investors cannot
     invest directly in an average or an index.

+    The CDSC is 5% for periods of one year or less, and 3% since inception.

++   From April 30, 1996.

0    From October 31, 1995.

00   Represents the per share amount of net unrealized appreciation of portfolio
     securities as of October 31, 1998.

                                       26

<PAGE>


PERFORMANCE AND PORTFOLIO OVERVIEW
Seligman Henderson Global Growth Opportunities Fund

     This chart  compares a $10,000  hypothetical  investment  made in  Seligman
Henderson Global Growth  Opportunities  Fund, with and without the initial 4.75%
maximum sales charge for Class A shares, and without the 1% contingent  deferred
sales  charge  ("CDSC") for Class D shares,  and assumes that all  distributions
within the period are invested in additional  shares,  since the commencement of
investment  operations  on November 1, 1995,  through  October  31,  1998,  to a
$10,000 hypothetical  investment made in the Lipper Global Funds Average and the
Morgan Stanley Capital  International World Index (MSCIWorld Index) for the same
period.  It is important  to keep in mind that indices and averages  exclude the
effect of fees and/or sales charges.



                   [The table below represents a Line chart]
 
         Class A With  Class A Without    Class D     MSCI World   Lipper Global
          Sales Load     Sales Load     Without CDSL     Index       Fds. Avg.
         ------------  ---------------  ------------  ----------   -------------
 11/1/95       9520        10000           10000         10000         10000
 1/31/96      10107        10616           10602         10848         10646
 4/30/96      10880        11429           11387         11362         11311
 7/31/96      10627        11162           11106         11032         10934
10/31/96      10773        11317           11233         11682         11559
 1/31/97      11307        11877           11751         12292         12401
 4/30/97      11347        11919           11793         12592         12392
 7/31/97      13253        13922           13740         14690         14370
10/31/97      12267        12885           12689         13698         13523
 1/31/98      12748        13391           13152         14511         13859
 4/30/98      15028        15786           15475         16312         15776
 7/31/98      15069        15829           15503         16470         15535
10/31/98      13435        14112           13800         15847         14235

     There are specific risks associated with global investing, such as currency
fluctuations,  foreign taxation,  differences in financial reporting  practices,
and rapid changes in political and economic conditions.

     As shown on page 26, the performance of Class B shares will be greater than
or less than the performances shown for Class A shares and Class D shares, based
on the  differences  in  sales  charges  and  fees  paid by  shareholders.  Past
performance is not indicative of future investment results.


LARGEST PORTFOLIO CHANGES
DURING THE SIX MONTHS ENDED OCTOBER 31, 1998

                                           SHARES
                                ----------------------------
                                                 HOLDINGS
ADDITIONS                          INCREASE      10/31/98
- -----------                       -----------   -----------
AES (US)                             27,900        27,900
ASM Lithography Holding
   (Netherlands)                     74,000        74,000
CNP Assurances (France)              98,000        98,000
ConAgra (US)                         65,400       103,700
Equant (Netherlands)                 40,600        40,600
NTT Mobile Communication
   Network "NTTDoCoMo"
   (Japan)                               34            34
Philip Morris (US)                   66,100        66,100
Superdiplo (Spain)                  105,980       105,980
Thomson Travel Group (UK)           500,000       500,000
Tyco International (US)              40,800        40,800

                                           SHARES
                                ----------------------------
                                                 HOLDINGS
REDUCTIONS                         DECREASE      10/31/98
- -------------                     -----------   -----------
Coca-Cola Enterprises (US)           57,300            --
Elsevier (Netherlands)              117,615            --
Hewlett-Packard (US)                 35,300            --
Intel (US)                           31,000            --
Koninklijke KNP BT
   (Netherlands)                     73,060            --
Lufthansa (Germany)                 128,000            --
Meitec (Japan)                       59,100            --
PepsiCo (US)                         64,500            --
Pfizer (US)                          19,200        19,200
Sairgroup (Switzerland)              11,105(1)         --


Largest  portfolio  changes from the previous  period to the current  period are
based on cost of purchases and proceeds from sales of securities.


- -----------------------
(1)  Includes 8,884 shares received as a result of a 5-for-1 stock split.

                                       27

<PAGE>


PORTFOLIO OF INVESTMENTS
OCTOBER 31, 1998
Seligman Henderson Global Growth Opportunities Fund


                                               SHARES          VALUE
                                            -----------     -----------
COMMON STOCKS  92.35%

AUSTRALIA  0.41%

CSL
   Manufacturer and marketer of
   human and veterinary
   pharmaceutical products
   (Drugs and Health Care)                     74,000        $ 538,381

TELSTRA*
   Provider of telecommunication
   services (Telecommunications)               75,000          213,345
                                                            ----------
                                                               751,726
                                                            ----------

BRAZIL  0.25%

TELECOMUNICACOES BRASILEIRAS
   "TELEBRAS" (ADRS)
   Provider of telecommunication
   services (Telecommunications)                6,000          455,625
                                                            ----------

CHINA  0.59%

CHINA TELECOM (HONG KONG)*
   Provider of cellular
   telecommunication services
   (Telecommunications)                       250,000          469,688

HUANENG POWER INTERNATIONAL (ADRS)*
   Developer and manufacturer
   of coal-fired power plants
   (Electric and Gas Utilities)                45,000          618,750
                                                            ----------
                                                             1,088,438
                                                            ----------

FINLAND  3.61%

NOKIA (SERIES A)
   Developer and manufacturer
   of cellular systems and equipment
   (Telecommunications)                        58,940        5,372,029

RAISION TEHTAAT
   Processor and marketer
   of agricultural products
   (Consumer Goods and Services)               95,000        1,284,166
                                                            ----------
                                                             6,656,195
                                                            ----------

FRANCE  8.94%

ACCOR
   Hotel operator and
   provider of related services
   (Entertainment and Leisure)                 14,583        3,067,477

CAP GEMINI
   Provider of computer
   consulting services (Computer
   and Technology Related)                     32,311        4,862,957



- ---------------------
See footnotes on page 32.


                                               SHARES          VALUE
                                             -----------  ----------

FRANCE (CONTINUED)

CNP ASSURANCES*
   Insurance company
   (Financial Services)                        98,000      $ 3,336,734

GENSET (ADRS)*
   Biomedical research company
   (Drugs and Health Care)                     36,000        1,068,750

HACHETTE FILIPACCHI MEDIAS
   Printer and publisher of magazines
   and newspapers; online content
   provider; distributor of cable radio
   (Media)                                      7,300        1,401,316

VALEO
   Manufacturer of automobile
   components (Automotive
   and Related)                                31,698        2,748,150
                                                            ----------
                                                            16,485,384
                                                            ----------

GERMANY  4.34%

ADIDAS-SALOMON
   Manufacturer and marketer of
   sporting goods (Retailing)                  22,330        2,713,621

METRO
   Department store operator
   (Retailing)                                 44,400        2,778,355

PORSCHE
   Manufacturer of luxury sports cars
   (Automotive and Related)                     1,401        2,498,760
                                                            ----------
                                                             7,990,736
                                                            ----------

GREECE   1.37%

HELLENIC TELECOMMUNICATION
   ORGANIZATION
   Provider of telecommunication
   services (Telecommunications)               78,544        1,786,868

NATIONAL BANK OF GREECE (GDRS)+

Provider of banking services
(Financial Services)                           25,800          728,850
                                                            ----------
                                                             2,515,718
                                                            ----------

HUNGARY  1.27%

MAGYAR TAVKOZLESI "MATAV" (ADRS)
   Provider of telecommunication
   services (Telecommunications)               47,700        1,281,936

MOL MAGYAR OLAJ-ES GAZIPARI
   (GDRS)+
   Oil and gas producer and
   distributor (Resources)                     46,500        1,059,037
                                                            ----------
                                                             2,340,973
                                                            ----------

                                       28

<PAGE>


PORTFOLIO OF INVESTMENTS
OCTOBER 31, 1998
Seligman Henderson Global Growth Opportunities Fund


                                              SHARES          VALUE
                                            -----------     ---------


IRELAND  1.87%

ELAN (ADRS)*
   Developer, manufacturer,
   and marketer of pharmaceutical
   delivery systems (Drugs
   and Health Care)                            49,275      $ 3,452,330
                                                            ----------

ITALY  2.05%

AEROPORTI DI ROMA
   Manager, operator, and
   developer of airfields and
   terminals (Transportation)                 217,890        1,364,308

MEDIOLANUM
   Life insurer; provider of
   a wide range of financial
   services (Financial Services)               97,000        2,417,593
                                                            ----------
                                                             3,781,901
                                                            ----------

JAPAN  5.58%

BELLSYSTEM 24
   Telemarketer (Business Goods
   and Services)                                7,000        1,347,947

DAITEC
   Developer of point-of-sale
   systems for Nippon Oil
   (Business Goods and Services)               24,300          432,418

DIAMOND COMPUTER SERVICE
   Provider of data processing
   and software development
   services (Computer and
   Technology Related)                         59,000          864,775

FUJITSU SUPPORT AND SERVICE
   Electronic and communication
   equipment dealer (Business
   Goods and Services)                          4,000          201,161

H.I.S.
   Travel agency specializing
   in overseas and package tours
   (Entertainment and Leisure)                 69,000        1,304,965

KEYENCE
   Manufacturer of detection
   devices and measuring control
   equipment (Electronics)                     12,400        1,245,063

NICHII GAKKAN
   Provider of hospital
   administrative services
   (Drugs and Health Care)                     21,100          752,762


- ---------------------
See footnotes on page 32.


                                              SHARES          VALUE
                                            -----------    -----------

JAPAN (CONTINUED)

NTT MOBILE COMMUNICATION
   NETWORK "NTT DOCOMO"
   Provider of telecommunication
   services (Telecommunications)                   34      $ 1,230,518

SECOM
   Security services pioneer
   (Support Services)                          25,000        1,859,016

SOFTBANK
   PC wholesaler (Computer
   and Technology Related)                     14,600          637,593

SUNDRUG
   Operator of outlet drug stores
   (Retailing)                                 31,200          407,685
                                                            ----------
                                                            10,283,903
                                                            ----------

MEXICO  0.73%

FOMENTO ECONOMICO MEXICANO
   "FEMSA" (ADRS)
   Beverage and packaging
   producer; retail store operator
   (Consumer Goods and Services)               33,500          873,094

GRUPO TELEVISA (GDRS)*
   Provider of television and other
   media services (Entertainment
   and Leisure)                                17,500          474,688
                                                            ----------
                                                             1,347,782
                                                            ----------

NETHERLANDS  4.31%

ASM LITHOGRAPHY HOLDING*
   Manufacturer of semiconductor
   production equipment
   (Electronics Capital Equipment)             74,000        1,879,642

EQUANT*
   Provider of data network services
   to multinational corporations
   (Business Goods and Services)               40,600        1,762,163

PHILIPS ELECTRONICS
   Consumer and industrial
   electronics (Electronics)                   40,080        2,134,908

POLYGRAM
   Producer, marketer, and
   distributor of recorded music,
   film, television, and video
   programming (Entertainment
   and Leisure)                                36,840        2,173,562
                                                            ----------
                                                             7,950,275
                                                            ----------

                                       29

<PAGE>

PORTFOLIO OF INVESTMENTS
OCTOBER 31, 1998
Seligman Henderson Global Growth Opportunities Fund


                                              SHARES          VALUE
                                            -----------     ---------

NORWAY  1.76%

TOMRA SYSTEMS
   Provider of recycling systems
   used mainly for beverage
   containers and crates
   (Business Goods and Services)              115,000      $ 3,239,701
                                                            ----------

SOUTH KOREA  0.02%

SAMSUNG ELECTRONICS (GDRS)*
   Manufacturer of
   consumer electronics and
   semiconductors (Electronics)                 1,704           35,656
                                                            ----------

SPAIN  7.98%

ACTIVIDADES DE CONSTRUCCION
   Y SERVICIOS
   Designer and builder of public
   works projects, residential homes,
   and other buildings
   (Construction and Property)                 76,100        2,432,754

CENTROS COMERCIALES CONTINENTE
   Hypermarket chain selling
   groceries, kitchen appliances,
   auto accessories, and clothing
   (Retailing)                                114,000        3,405,163

SOCIEDAD GENERAL DE AGUAS
   DE BARCELONA
   Drinking water supplier; waste
   management (Consumer Goods
   and Services)                               53,930        2,880,409

SOCIEDAD GENERAL DE AGUAS
   DE BARCELONA* (RIGHTS)
   Drinking water supplier; waste
   management (Consumer Goods
   and Services)                               53,930           26,464

SUPERDIPLO*
   Operator of supermarkets,
   shopping clubs, boutiques,
   and outlets (Retailing)                    105,980        2,747,295

TABACALERA (CLASS A)
   Manufacturer and marketer
   of tobacco products (Tobacco)              133,300        3,223,242
                                                            ----------
                                                            14,715,327
                                                            ----------

SWEDEN  3.35%

ASTRA (CLASS A)
   Developer, manufacturer, and
   marketer of pharmaceuticals
   (Drugs and Health Care)                    129,415        2,100,327


- ---------------------
See footnotes on page 32.


                                              SHARES          VALUE
                                            -----------     ----------

SWEDEN (CONTINUED)

AUTOLIV (SDRS)
   Manufacturer and worldwide
   retailer of automobile airbags
   and other safety equipment
   (Automotive and Related)                     8,400        $ 280,198

L.M. ERICSSON TELEFON (SERIES B)
   Manufacturer of telecom-
   munication equipment
   (Telecommunications)                       168,250        3,799,089
                                                            ----------
                                                             6,179,614
                                                            ----------

SWITZERLAND  0.96%

HELVETIA PATRIA HOLDING
   Provider of life, property, and
   casualty insurance (Financial
   Services)                                    1,945        1,763,210
                                                            ----------

UNITED KINGDOM  10.35%

BODYCOTE INTERNATIONAL
   Diversified manufacturer and
   distributor (Industrial Goods
   and Services)                              148,000        2,136,223

CRT GROUP
   Provider of training and
   recruitment services; publisher
   of multimedia products
   (Support Services)                         350,000        1,004,518

GAMES WORKSHOP GROUP
   Manufacturer and retailer
   of specialty games (Retailing)             134,800        1,240,733

GRANADA GROUP
   Television group with additional
   leisure interests including hotels
   (Entertainment and Leisure)                128,800        1,960,398

HALMA
   Producer of fire detection and
   security equipment
   (Electronics)                              768,066        1,613,125

LADBROKE GROUP
   Leisure group with interests
   in hotels and gaming
   (Entertainment and Leisure)                375,000        1,369,655

                                       30

<PAGE>


PORTFOLIO OF INVESTMENTS
OCTOBER 31, 1998
Seligman Henderson Global Growth Opportunities Fund


                                              SHARES          VALUE
                                            -----------    -----------


UNITED KINGDOM (CONTINUED)

PARITY
   Provider of software engineering
   and consulting services
   (Computer and
   Technology Related)                        225,000      $ 1,703,832

PIZZA EXPRESS
   Operator of restaurant
   chain (Restaurants)                        245,000        3,116,057

ROLLS ROYCE
   Aerospace; power generation,
   transmission; and distribution
   systems (Aerospace)                        313,500        1,164,706

SMITHKLINE BEECHAM
   Manufacturer and marketer of
   pharmaceutical products;
   provider of health care
   products and services
   (Drugs and Health Care)                     50,000          616,266

THOMSON TRAVEL GROUP
   International vacation and
   leisure company
   (Entertainment and Leisure)                500,000        1,196,553

WPP GROUP
   Provider of worldwide
   marketing services, including
   advertising, public relations,
   and market research (Business
   Goods and Services)                        400,000        1,961,342
                                                            ----------
                                                            19,083,408
                                                            ----------

UNITED STATES  32.61%

AES*
   Electrical supplier
   (Electric and Gas Utilities)                27,900        1,142,156

AMERICAN INTERNATIONAL GROUP
   Commercial and industrial
   insurer; financial services
   (Financial Services)                        29,775        2,538,319

AMERICAN TELEPHONE &TELEGRAPH
   Provider of communication
   services and products
   (Telecommunications)                        44,800        2,788,800

BRISTOL-MYERS SQUIBB
   Developer and manufacturer of
   health and personal care
   products (Drugs and Health
   Care)                                       32,900        3,637,506


- ---------------------
See footnotes on page 32.


                                              SHARES          VALUE
                                            -----------    ----------

UNITED STATES (CONTINUED)

CARDINAL HEALTH
   Distributor of pharmaceutical
   products (Drugs and
   Health Care)                                32,500      $ 3,073,281

CITIGROUP
   Provider of investment
   services and life insurance
   (Financial Services)                        61,350        2,887,284

CONAGRA
   Developer and manufacturer
   of prepared foods and
   agricultural products (Consumer
   Goods and Services)                        103,700        3,156,369

DAYTON HUDSON
   General merchandise retailer,
   specializing in large stores
   (Retailing)                                 49,100        2,080,613

DISNEY, WALT
   Theme parks and hotel operator;
   film production (Entertainment
   and Leisure)                                40,500        1,090,969

GENERAL DYNAMICS
   Manufacturer of defense
   products (Capital Goods)                    19,500        1,154,156

GENERAL ELECTRIC
   Supplier of electrical equipment
   and other industrial and
   consumer products (Diversified)             36,700        3,211,250

INTERPUBLIC GROUP OF COMPANIES
   Global advertising through
   agencies in various countries
   (Business Goods and Services)               55,350        3,237,975

KROGER*
   Operator of supermarkets and
   convenience stores (Consumer     
   Goods and Services)                         56,300        3,124,650

LILLY (ELI)
   Developer and manufacturer
   of pharmaceuticals (Drugs and
   Health Care)                                38,900        3,148,469

MBNA
   Issuer of credit cards; deposit,
   loan, and transaction processing
   (Financial Services)                       102,488        2,337,996

                                       31

<PAGE>


PORTFOLIO OF INVESTMENTS
OCTOBER 31, 1998
Seligman Henderson Global Growth Opportunities Fund


                                              SHARES          VALUE
                                            -----------    -----------

UNITED STATES (CONTINUED)

MERCK
   Developer and manufacturer
   of pharmaceuticals (Drugs
   and Health Care)                            25,900      $ 3,502,975

MICROSOFT*
   Provider of computer
   software products (Computer
   and Technology Related)                     33,100        3,505,497

MOTOROLA
   Provider of wireless
   communications and equipment
   (Electronics)                               13,900          722,800

PFIZER
   Ethical drugs; hospital products;
   and specialty chemicals
   (Drugs and Health Care)                     19,200        2,060,400

PHILIP MORRIS
   Tobacco company (Tobacco)                   66,100        3,379,363

PROCTER & GAMBLE
   Manufacturer and distributor
   of household and personal
   care products (Consumer
   Goods and Services)                         31,900        2,835,113

TYCO INTERNATIONAL Worldwide provider
   of fire protection devices, electronic
   security services, and underwater
   telecommunication systems
   (Diversified)                               40,800        2,527,050

XEROX
   Developer, manufacturer, and
   marketer of office automation
   products (Business Goods
   and Services)                               30,500        2,954,688
                                                            ----------
                                                            60,097,679
                                                            ----------

TOTAL COMMON STOCKS
   (Cost $121,960,029)                                     170,215,581
                                                           -----------


                                             PRINCIPAL
                                              AMOUNT          VALUE
                                            -----------     ----------

CORPORATE BONDS  0.08%
   (Cost $136,121)

GERMANY  0.08%

METRO FINANCE
   0%, 9/7/2013
   (Financial Services)                       249,000**      $ 151,485
                                                            ----------
TOTAL INVESTMENTS  92.43%     
  (Cost $122,096,150)                                      170,367,066
OTHER ASSETS     
  LESS LIABILITIES  7.57%                                   13,953,306
                                                            ----------
NET ASSETS  100.00%                                       $184,320,372
                                                          ============


- --------------------------------

*    Non-income producing security.

**   Principal amount reported in German deutschemarks.

+    Rule 144A security.

Descriptions  of companies  have not been  audited by Deloitte  &Touche LLP. See
Notes to Financial Statements.

                                       32

<PAGE>


INVESTMENT REPORT
Seligman Henderson Global Smaller Companies Fund

PERFORMANCE REVIEW

For the 12 months ended  October 31, 1998,  Seligman  Henderson  Global  Smaller
Companies Fund declined 5.82% based on net asset value of Class A shares. In the
same period,  the Fund's peer group,  as measured by the Lipper Global Small Cap
Funds Average,  fell 10.59%,  and the Salomon Smith Barney Extended Market Index
World fell 4.49%.

The  performance  of world  markets  during the period  under review was sharply
divided -- while  markets in the Far East were  falling,  Western  markets  were
scaling new heights.  July saw the peak in these markets,  before concerns about
the impact of Asian economic weakness began to gather pace. The growing sense of
crisis swept emerging  markets,  leading to a devaluation of the Russian rouble,
and fears that Brazil would be forced to devalue.  Equity  markets  collapsed as
concerns about a global financial meltdown spread. As investors became more risk
averse, government bond markets rose to new highs. The rescue of a US hedge fund
and the  subsequent  reduction  in  interest  rates in the US marked the turning
point for equities, as investors became more confident that the global financial
crisis  would be  averted.  The last two  weeks of  October  saw  markets  rally
strongly.


FUND OBJECTIVE

Seligman  Henderson Global Smaller  Companies Fund,  which commenced  investment
operations  on  September  9, 1992,  seeks  long-term  capital  appreciation  by
investing in smaller-company stocks in the US and around the world.

                                    [PHOTO]


INTERNATIONAL  TEAM:  (FROM  LEFT)  ANDREW  MCNALLY,  WILLIAM  GARNETT,  HEATHER
MANNERS,  ANDREW STOCK,  (SEATED)  MIRANDA  RICHARDS,  IAIN C. CLARK  (PORTFOLIO
MANAGER)


PORTFOLIO STRATEGY
UNITED STATES

o    For much of the period,  smaller  companies  in the US were  disappointing,
     lagging  both their  larger  counterparts  and smaller  companies  in other
     regions of the world.  Smaller  companies  in the US peaked in April,  then
     declined gradually until the summer, when they took a lurch downward. Their
     underperformance in the first phase came as investors concentrated on a few
     large-cap names and drove the index higher.  The poor  performance of small
     caps in the summer can be attributed to risk aversion, as investors fled to
     the safety of bonds or cash from the perceived  risk of smaller  companies.
     However, in October, smaller companies began to stage a recovery,  rallying
     by almost 22%, as measured by the  Salomon  Smith  Barney  Extended  Market
     Index World. Nevertheless,  for the year as a whole, smaller companies fell
     almost 13%.

     EXPOSURE TO THE US ROSE MARGINALLY FROM THE BEGINNING OF THE YEAR.  LOOKING
     FORWARD, WE WILL LIKELY INCREASE THE ALLOCATION TO THE US TO 50%. FOLLOWING
     THEIR  CORRECTION,   US  SMALL  CAPS  ARE  BEGINNING  TO  ATTRACT  INVESTOR
     ATTENTION,  AS THEY OFFER AN ATTRACTIVE COMBINATION OF GROWTH AT REASONABLE
     VALUATIONS.
 
UNITED KINGDOM

o    In the UK, smaller companies fared poorly over the year to October,  rising
     only 3.2%, compared to a rise of 16.3% in larger companies.  These figures,
     however,  ignore a strong  outperforming  period in the  second  quarter of
     1998.  Following  this period,  smaller  companies  fell in line with other
     markets.


                                    [PHOTO]

US  TEAM:   (FROM  LEFT)  TED   HILLENMEYER,   MIKE   SULLIVAN,   SONIA   THOMAS
(ADMINISTRATIVE ASSISTANT),  BRUCE SIRMAN, (SEATED) RICK RUVKUN, ARSEN MRAKOVCIC
(PORTFOLIO MANAGER)

                                       33

<PAGE>


INVESTMENT REPORT
Seligman Henderson Global Smaller Companies Fund

     THE UK ECONOMY IS SLOWING AND  INTEREST  RATES  REMAIN HIGH -- NOT AN IDEAL
     ENVIRONMENT FOR SMALLER COMPANIES. HOWEVER, THE FUND CONTINUES TO EMPHASIZE
     COMPANIES  IN THE SERVICE  SECTOR WHICH HAVE  VISIBLE  EARNINGS  GROWTH AND
     PRICING  POWER.  THE  ALLOCATION TO THE UK WAS  OVERWEIGHT  THROUGHOUT  THE
     PERIOD, VARYING BETWEEN 19% AND 25%.

     THE  ALLOCATION  TO THE UK WILL LIKELY BE REDUCED  OVER THE COMING  MONTHS.
     WHILE THE OVERWEIGHT  POSITION HAS BEEN POSITIVE FOR  PERFORMANCE,  CONCERN
     ABOUT THE ECONOMIC  OUTLOOK AND THE SPEED OF  INTEREST-RATE  CUTS MAY LEAVE
     SMALLER UK-BASED COMPANIES ON THE SIDELINES FOR SOME TIME.

CONTINENTAL EUROPE

o    Continental  Europe was the  best-performing  region for smaller  companies
     over the last 12 months.  Total returns were 16.2%  compared with 25.9% for
     larger  companies.  The stock  markets of Italy and Spain  offered the best
     returns at 48.35% and 35.2%,  respectively.  Overall,  the strong growth in
     the European economy, lower interest rates, low valuations,  and reasonable
     earnings growth rates offered many attractive investment opportunities.

     The portfolio has maintained a neutral to slightly  overweight  position in
     Continental  Europe throughout the period,  peaking at approximately 25% in
     November 1997 and ending the period at approximately 23%. Toward the end of
     the period, concern has grown about the future growth prospects for Europe.
     The Fund has been reducing exposure to more cyclical sectors of the market,
     but will maintain a neutral weighting for the next few months.

JAPAN

o    For  much of the  year,  the  economic  background  in Japan  continued  to
     deteriorate.  The market appeared to be in the grip of deflation, a banking
     crisis,  and policy  paralysis.  The government  announced  fiscal stimulus
     packages which failed to meet investor  expectations,  and the market fell.
     Indeed, for the period as a whole,  smaller companies fell 17.5%,  compared
     to a fall of 15% for larger  companies.  A change in government  during the
     summer did little to improve investor sentiment, and plans for a resolution
     of the banking crisis were met with  skepticism  among  investors.  Indeed,
     concern about the impact of Japan's problems on the rest of the world was a
     partial trigger for the collapse in world markets in the summer.

     THE FUND HAD BEEN SIGNIFICANTLY UNDERWEIGHTED IN JAPANESE SMALLER COMPANIES
     THROUGHOUT THE PERIOD. HOWEVER, THE ALLOCATION WAS INCREASED TOWARD THE END
     OF THE  YEAR,  AS  TENTATIVE  SIGNS  OF SOME  IMPROVEMENT  IN THE  JAPANESE
     SITUATION  EMERGED.  THE MOVE TO GRADUALLY  INCREASE THE POSITION CLOSER TO
     THE FUND'S BENCHMARK WILL LIKELY CONTINUE OVER THE NEXT FEW MONTHS.

PACIFIC BASIN

o    Given the economic background, it was not surprising that the Pacific Basin
     was the worst  performer  for the  12-month  period  ending on October  31,
     falling  27.6%.  There was no respite to the worsening  news in the region,
     although  during the drop in global markets in August and  particularly  in
     September,  the Pacific  Basin  performed  relatively  well. As US interest
     rates and the dollar  fell,  interest  rates in the region  also  declined,
     providing a stimulus to equity markets.

     The Fund began the year with an  underweighted  position  which remained in
     place  throughout the period.  Looking ahead, we are likely to increase the
     allocation.  While the  underperformance  from smaller  companies  has been
     severe,  there are tentative  signs of  improvements at the corporate level
     which may lead to selective opportunities in the region.

SUMMARY

The past year has seen a  fundamental  change in most equity  markets.  All-time
highs were  followed  by sharp  corrections,  which were then  followed by sharp
rallies.  As volatility  increased,  investors  avoided the  perceived  risks of
smaller companies.  As a result,  smaller companies,  as measured by the Salomon
Smith Barney  Extended  Market Index World,  underperformed  large  companies by
20.2% for the year.

Clearly,  continued  volatility  will not favor small caps.  However,  there are
signs of renewed investor  interest in US small caps which could spread to other
regions. Certainly the growth and valuation combination of small caps looks more
attractive than those for large caps in the US, Europe,  and the UK, while there
is plenty of scope for positive surprise in Asia.

                                       34

<PAGE>


PERFORMANCE AND PORTFOLIO OVERVIEW
Seligman Henderson Global Smaller Companies Fund

COUNTRY ALLOCATION
OCTOBER 31, 1998

                                                       SALOMON
                                                      BROTHERS
                                                        WORLD
                                            FUND      EM Index
                                            ------------------
CONTINENTAL EUROPE                          22.83%     19.70%
    Austria                                  0.72       0.13
    Belgium                                  0.30       0.58
    Denmark                                  2.44       0.37
    Finland                                    --       0.41
    France                                   5.90       3.36
    Germany                                  1.88       3.89
    Ireland                                  0.27       0.24
    Italy                                    0.68       1.95
    Netherlands                              3.36       2.69
    Norway                                   2.18       0.19
    Portugal                                   --       0.17
    Spain                                      --       1.36
    Sweden                                   2.15       1.20
    Switzerland                              2.95       3.16
JAPAN                                        5.79       8.52
PACIFIC                                      1.96       2.68
    Australia                                1.03       1.50
    Hong Kong                                0.42       0.90
    New Zealand                              0.10       0.09
    Singapore                                0.21       0.19
    Taiwan                                   0.15         --
    Thailand                                 0.05         --
UNITED KINGDOM                              18.06      10.61
UNITED STATES                               40.31      56.45
OTHER                                        1.48       2.04
    Bermuda                                  0.18         --
    Canada                                   1.30       2.04
OTHER ASSETS LESS LIABILITIES                9.57         --
                                         --------   --------
TOTAL                                      100.00%    100.00%
                                         --------   --------
                                         --------   --------


LARGEST INDUSTRIES
OCTOBER 31, 1998

[The table below represents a bar chart]

BUSINESS SERVICES            11.9%      $103,555,264
RETAILING                     7.1%      $ 61,628,676
CONSUMER GOODS AND SERVICES   6.8%      $ 59,249,735
DRUGS AND HEALTH CARE         6.5%      $ 56,154,196
CONSTRUCTION AND PROPERTY     6.4%      $ 55,436,874


REGIONAL ALLOCATION
OCTOBER 31, 1998

[The table below represents a pie chart]

United\rStates\r40.31%       40.31%
Continental\rEurope\r22.83%  22.83%
United\rKingdom\r18.06%      18.06%
Japan\r5.79%                  5.79%
Pacific\r1.96%                1.96%
Other\r1.48%                  1.48%
Other Assets\rLess
     Liabilities\r9.57%       9.57%


LARGEST PORTFOLIO HOLDINGS
October 31, 1998

SECURITY                                      VALUE
- ----------                               ---------------
CMG (Netherlands)                         $17,422,976
F.I. Group (UK)                            16,065,600
Ashtead Group (UK)                         13,085,933
Pizza Express (UK)                         12,718,600
PSSWorld Medical (US)                      11,174,250
Tandberg Television (Norway)               10,920,127
National Express Group (UK)                10,616,266
Modis Professional Services (US)           10,296,525
Tilbury Douglas (UK)                       10,041,000
Total Renal Care Holdings (US)              9,856,326

                                       35

<PAGE>


PERFORMANCE AND PORTFOLIO OVERVIEW
SELIGMAN HENDERSON GLOBAL SMALLER COMPANIES FUND

INVESTMENT RESULTS PER SHARE

TOTAL RETURNS
FOR PERIODS ENDED OCTOBER 31, 1998

<TABLE>
<CAPTION>
                                                                                       AVERAGE ANNUAL
                                                              -----------------------------------------------------------------
                                                                                           CLASS A       CLASS B       CLASS D
                                                                                            SINCE         SINCE         SINCE
                                                 SIX            ONE          FIVE         INCEPTION     INCEPTION     INCEPTION
                                               MONTHS*         YEAR          YEARS          9/9/92       4/22/96        5/3/93
                                               ------         ------        -------       ---------     ---------     ---------
<S>                                            <C>            <C>            <C>           <C>            <C>           <C>
CLASS A**
With Sales Charge                              (22.56)%       (10.30)%       10.41%        14.49%           n/a           n/a
Without Sales Charge                           (18.67)         (5.82)        11.49         15.41            n/a           n/a

CLASS B**
With CDSC+                                     (23.06)        (11.01)          n/a           n/a          (0.19)%         n/a
Without CDSC                                   (19.01)         (6.54)          n/a           n/a           0.91           n/a

CLASS D**
With 1% CDSC                                   (19.76)         (7.43)          n/a           n/a            n/a           n/a
Without CDSC                                   (18.95)         (6.53)        10.66           n/a            n/a         12.77%

LIPPER GLOBAL SMALL CAP FUNDS AVERAGE***       (20.67)        (10.59)         5.97         10.70++        (0.58)(0)      8.86(00)

SALOMON SMITH BARNEY EM INDEX WORLD***         (14.80)         (4.49)         7.13         10.09+++        4.11(0)       8.94(00)
</TABLE>

NET ASSET VALUE

               OCTOBER 31, 1998       APRIL 30, 1998        OCTOBER 31, 1997
               ----------------       --------------        ----------------
CLASS A             $14.11                $17.35                 $15.62
CLASS B              13.46                 16.62                  15.04
CLASS D              13.47                 16.62                  15.05

CAPITAL GAIN (LOSS) INFORMATION
FOR THE YEAR ENDED OCTOBER 31, 1998

PAID                   $0.627
REALIZED               (0.257)
UNREALIZED              0.559(000)

     Performance  data  quoted  represent  changes in prices and assume that all
distributions within the periods are invested in additional shares. The rates of
return  will  vary and the  principal  value of an  investment  will  fluctuate.
Shares, if redeemed, may be worth more or less than their original cost.


- ------------------------
*    Returns for periods of less than one year are not annualized.

**   Return  figures  reflect any change in price and assume the  investment  of
     dividends  and capital gain  distributions.  Returns for Class A shares are
     calculated  with and without the effect of the initial  4.75% maximum sales
     charge.  Returns  for Class B shares are  calculated  with and  without the
     effect of the maximum 5% contingent deferred sales charge ("CDSC"), charged
     on redemptions  made within one year of the date of purchase,  declining to
     1% in the sixth  year and 0%  thereafter.  Returns  for Class D shares  are
     calculated  with  and  without  the  effect  of the  1%  CDSC,  charged  on
     redemptions made within one year of the date of purchase.

***  The Lipper  Global  Small Cap Funds  Average and the Salomon  Smith  Barney
     Extended  Market  Index World  (Salomon  Smith  Barney EM Index  World) are
     unmanaged  benchmarks  that assume  reinvestment  of dividends.  The Lipper
     Global Small Cap Funds Average  excludes the effect of sales  charges,  and
     the Salomon  Smith  Barney EM Index World  excludes  the effect of fees and
     sales charges.The  monthly performance of the Lipper Global Small Cap Funds
     Average is used in the Performance and Portfolio Overview. Investors cannot
     invest directly in an average or an index.

+    The CDSC is 5% for periods of one year or less, and 3% since inception.

++   From September 10, 1992.

+++  From August 31, 1992.

0    From April 30, 1996.

00   From April 30, 1993.

000  Represents the per share amount of net unrealized appreciation of portfolio
     securities as of October 31, 1998.

                                       36

<PAGE>


PERFORMANCE AND PORTFOLIO OVERVIEW
SELIGMAN HENDERSON GLOBAL SMALLER COMPANIES FUND

     This chart  compares a $10,000  hypothetical  investment  made in  Seligman
Henderson  Global Smaller  Companies  Fund Class A shares,  with and without the
initial  4.75%  maximum sales  charge,  and assumes that all  distributions  are
invested in additional shares,  since the commencement of investment  operations
on  September  9, 1992,  through  October 31,  1998,  to a $10,000  hypothetical
investment  made in the Lipper  Global  Small Cap Funds  Average and the Salomon
Smith Barney  Extended  Market Index World (Salomon Smith Barney EM Index World)
for the same  period.  It is important to keep in mind that indices and averages
exclude the effect of fees and/or sales charges.

[The table below represents a line chart]

Date        Class A        Class A    Salomon Bros.    Lipper Global
          With Sales    Without Sales   World EM         Small Cap
             Load           Load          Index          Fds. Avg.

9/9/92       9520           10000          10000          10000
10/31/92     9533           10014          9787           10015
1/31/93      10528          11059          10523          10958
4/30/93      11343          11915          11655          11702
7/31/93      12225          12841          12252          12396
10/31/93     13334          14006          12822          13974
1/31/94      15150          15914          13511          15151
4/30/94      14895          15645          13346          14533
7/31/94      14263          14982          13383          14215
10/31/94     16037          16846          13609          15015
1/31/95      14757          15501          12860          13764
4/30/95      16461          17291          13807          14657
7/31/95      18567          19504          14831          16494
10/31/95     19260          20231          14546          16398
1/31/96      19922          20926          15482          17161
4/30/96      22540          23677          16879          18945
7/31/96      21930          23036          15879          18069
10/31/96     22526          23661          16710          18759
1/31/97      23205          24375          17258          19714
4/30/97      22049          23161          16662          18880
7/31/97      25016          26277          19110          21639
10/31/97     24391          25621          18942          20883
1/31/98      23981          25191          18782          20265
4/30/98      28247          29671          21234          23538
7/31/98      26928          28286          19759          21799
10/31/98     22972          24130          18091          18672

     There are specific risks associated with global investing, such as currency
fluctuations,  foreign taxation,  differences in financial reporting  practices,
and rapid changes in political and economic conditions.

     As shown  on page  36,  the  performances  of Class B and D shares  will be
greater than or less than the performance shown for Class A shares, based on the
differences in sales charges and fees paid by shareholders.  Past performance is
not indicative of future investment results.

LARGEST PORTFOLIO CHANGES
DURING THE SIX MONTHS ENDED OCTOBER 31, 1998

                                           SHARES
                                  -------------------------
                                                 HOLDINGS
ADDITIONS                          INCREASE      10/31/98
- -----------                       -----------   -----------
ICON (ADRs) (UK)                    205,000      205,000
Kaba Holding
   (Switzerland)                     15,000       15,000
Nobel Biocare (Sweden)              513,484      513,484
Personnel Group
   of America (US)                  307,300      529,300
Premier Parks (US)                  286,300      365,700(1)
Primark (US)                        190,100      190,100
PSSWorld Medical (US)               349,600      507,200
Superior Services (US)              197,700      197,700
Tandberg Television
   (Norway)                       1,180,000    1,180,000
Vlasic Foods International
   (US)                             254,100      254,100

                                           SHARES
                                  -------------------------
                                                 HOLDINGS
ADDITIONS                          DECREASE      10/31/98
- -----------                       -----------   -----------
Ceridian (US)                       107,100       79,800
COLT Telecom Group (UK)             800,000(2)        --
David Brown Group (UK)            1,831,232           --
FactSet Research
   Systems (US)                     271,000           --
Jacor Communications (US)           138,500        8,900
MAPICS(US)                          626,300           --
Montupet (France)                   156,347      159,354(3)
Otra (Netherlands)                  448,803           --
Scherer (R.P.)(US)                  122,300           --
Telinfo (Belgium)                    94,200       24,840

   Largest portfolio changes from the previous period to the current period are
based on cost of purchases and proceeds from sales of securities.

- -----------------------------

(1)  Includes 39,700 shares received as a result of a 2-for-1 stock split.

(2)  Includes 600,000 shares received as a result of a 4-for-1 stock split.

(3)  Includes shares received as a result of a 10-for-1 stock split.

                                       37


<PAGE>

PORTFOLIO OF INVESTMENTS
OCTOBER 31, 1998
Seligman Henderson Global Smaller Companies Fund

                                               SHARES              VALUE
                                               ------              -----
COMMON STOCKS  89.58%
AUSTRALIA  1.03%
BRL HARDY
   Owner and operator of
   vineyards; producer and
   distributor of wines (Consumer
   Goods and Services)                        259,000          $  857,251
COCHLEAR
   Developer and marketer of
   hearing aids (Medical
   Products and Technology)                   166,000             840,325
CSL
   Developer, manufacturer,
   and marketer of human and
   veterinary pharmaceutical and
   diagnostic products (Medical
   Products and Technology)                   183,500           1,335,041
FUTURIS
   Mini-conglomerate  with
   interests in automobile
   components,  building
   materials, and financial
   services (Automotive Parts
   Manufacturing)                             804,822             824,283
NATIONAL FOODS
   Marketer of dairy products;
   fruit juice  processor;  producer
   of food packaging (Consumer
   Goods and Services)                        566,000           1,046,262
NATIONAL MUTUAL PROPERTY TRUST
   Operator of commercial office
   and industrial real estate
   properties (Construction
   and Property)                              423,900             354,732
PASMINCO
   Explorer, producer, and
   developer of lead, zinc,
   and silver mines (Metals)                1,320,000           1,079,885
STOCKLAND TRUST GROUP
   Real estate developer and
   marketer (Construction
   and Property)                              437,300           1,009,628
TAB*
   Gaming company which
   markets wagers on horse
   racing and sporting events
   (Leisure and Hotels)                       510,000             971,410
HENRY WALKER GROUP
   Provider of civil engineering
   and mining services
   (Support Services)                         550,500             615,379
                                                         ----------------
                                                                8,934,196
                                                         ----------------
AUSTRIA  0.72%
BAU HOLDINGS
   (VOTING PREFERENCE SHARES)
   Construction and civil
   engineering (Construction
   and Property)                               94,250           4,187,449
BAU HOLDINGS
   Construction and civil
   engineering (Construction
   and Property)                               37,894           2,100,428
                                                         ----------------
                                                                6,287,877
                                                         ----------------
BELGIUM  0.30%
TELINFO
   Developer of
   telecommunication
   networks for businesses
   (Telecommunications)                        24,840           2,643,017
                                                         ----------------
BERMUDA  0.18%
DAIRY FARM INTERNATIONAL
   HOLDINGS
   International food retailer,
   manufacturer, and wholesaler
   (Retailing)                                657,500             808,725
STIRLING COOKE BROWN HOLDINGS
   Provider of risk management
   services and products
   (Financial Services)                        44,200             792,837
                                                         ----------------
                                                                1,601,562
                                                         ----------------
CANADA  1.30%
FINNING INTERNATIONAL
   Lessor of construction
   equipment (Construction and
   Property)                                  210,000           1,613,813


- ----------------
See footnotes on page 50.

                                       38



<PAGE>


PORTFOLIO OF INVESTMENTS
OCTOBER 31, 1998
Seligman Henderson Global Smaller Companies Fund

                                               SHARES            VALUE
                                              -------           -------
CANADA (CONTINUED)
FIRSTSERVICE*
   Provider of property
   management and
   business services
   (Business Services)                        196,900         $ 2,288,962
PMC-SIERRA*
   Provider of high-speed
   networking circuits
   (Technology)                                57,300           2,574,919
TELEGLOBE
   Owner and operator of a
   worldwide telecommunication
   network (Telecommunications)               110,000           3,010,376
TROJAN TECHNOLOGIES*
   Worldwide environmental
   company which specializes
   in the disinfection of drinking
   water via ultraviolet light
   (Support Services)                         100,000           1,828,794
                                                         ----------------
                                                               11,316,864
                                                         ----------------
DENMARK  2.44%
DANSKE TRAELASTKOMPAGNI
   Timber supply company
   (Construction and Property)                 87,130           6,646,494
NEUROSEARCH*
   Researcher and developer
   of disease remedies
   (Drugs and Health Care)                     15,000           1,084,642
SONDAGSAVISEN
Operator and distributor of
companies in the media
industry (Media)                               30,500           1,502,606
SYDBANK
   Commercial financial services
   provider (Financial Services)               98,784           4,442,800
THORKILD KRISTENSEN
   Property development
   (Construction and Property)                 84,796           7,546,526
                                                         ----------------
                                                               21,223,068
                                                         ----------------
FINLAND
TAMRO (SERIES A)
   Pharmaceutical distributor for
   Scandinavia and the Baltics
   (Drugs and Health Care)                        230               1,234
                                                         ----------------
FRANCE  5.69%
COMPAGNIE FRANCAISE D'FTUDES
   ET DE CONSTRUCTION TECHNIP
   "TECHNIP"
   Engineering contractor
   (Construction and Property)                 49,000         $ 4,990,086
DU PAREIL AU MEME
   Manufacturer and
   distributor of clothing
   for children (Retailing)                    22,555           1,573,321
ECIA
   Manufacturer of automobile
   components (Automotive Parts
   Manufacturing)                              51,048           9,707,217
ETAM DEVELOPPEMENT
   Retailer of women's clothing
   and intimate apparel (Retailing)           109,663           5,534,542
L'EUROPENNE D'EXTINCTEURS++
   Manufacturer and distributor of
   fire extinguishers
   (Manufacturing)                            132,225           6,887,712
GENSET (ADRS)*
   DNA technology firm seeking
   to identify and patent genes
   and regulatory regions related
   to specific diseases (Drugs and
   Health Care)                               137,000           4,067,188
INTERNATIONAL METAL SERVICE
   Distributor and broker of
   specialized metal
   products (Metals)                          100,570             942,617
MONTUPET
   Manufacturer of automobile
   components (Automotive Parts
   Manufacturing)                             159,354           7,088,783
SYLEA
   Manufacturer of automobile
   components (Automotive Parts
   Manufacturing)                              52,337           3,197,953
VIRBAC
   Manufacturer of veterinary
   drugs and products
   (Veterinary Products)                       83,053           5,540,360
                                                         ----------------
                                                               49,529,779
                                                         ----------------


- ----------------
See footnotes on page 50.

                                       39



<PAGE>


PORTFOLIO OF INVESTMENTS
OCTOBER 31, 1998
Seligman Henderson Global Smaller Companies Fund

                                               SHARES              VALUE
                                              -------             -------
GERMANY  1.24%
BERU
   Developer, manufacturer, and
   marketer of diesel engine
   systems and automotive products
   (Automotive Parts
   Manufacturing)                              33,600             643,966
BIEN-HAUS
   Provider of residential and
   multi-family homes
   (Construction and Property)                  2,615             845,844
GERRY WEBER INTERNATIONAL
   Designer and manufacturer
   of women's apparel
   (Manufacturing)                              4,281              98,354
HAWESKO HOLDING
   Provider of telecommunication
   services (Telecommunications)               96,000           4,817,412
MOEBEL WALTHER
   Retailer of furniture and related
   products (Retailing)                       134,821           4,401,653
                                                         ----------------
                                                               10,807,229
                                                         ----------------
HONG KONG  0.42%
BEIJING DATANG POWER
   GENERATION
   Generator and distributor
   of electric power
   (Electric Utilities)                     2,306,000             714,623
ESPRIT HOLDINGS
   Retail and wholesale distributor
   of high-quality fashion
   products (Retailing)                       873,000             324,085
JOHNSON ELECTRIC HOLDINGS
   Designer, manufacturer, and
   marketer of micromotors
   (Electronics)                              222,000             515,979
KERRY PROPERTIES
   Investor and developer in
   the real estate industry
   (Construction and Property)                205,000             126,396
LI & FUNG
   Export trader and wholesale
   distributor of consumer
   products (Consumer Goods
   and Services)                              356,200             556,527
SHENZHEN EXPRESSWAY
   Developer and operator of
   highways (Transportation)                3,512,000             793,595
SOUTH CHINA MORNING POST
   English language
   newspaper (Media)                          300,000             160,759
  YANZHOU COAL MINING
  (SERIES H)*
   Mining company producing
   prime-quality, low-sulphur
   coal (Resources)                         2,134,000             418,837
                                                         ----------------
                                                                3,610,801
                                                         ----------------
IRELAND  0.27%
ESAT TELECOM GROUP (ADRS)*
   Provider of telecommunication
   services (Telecommunications)               77,700           2,379,563
                                                         ----------------
ITALY  0.68%
LA DORIA++
   Producer of foods, specializing
   in fruits, fruit juices, and canned
   tomatoes (Consumer Goods
   and Services)                            1,686,091           5,922,433
                                                         ----------------
JAPAN  5.79%
AIYA
   Operator of restaurant chain
   (Restaurants)                               84,600             756,364
ASAHI DIAMOND INDUSTRIES
   Manufacturer of diamond-tipped
   tools (Manufacturing)                      108,000             474,429
ASATSU
   Advertising agency (Advertising)            77,500           1,439,072
BENESSE
   Provider of educational services
   (Business Services)                         41,400           1,904,062
ENPLAS
   Manufacturer of electronic
   components and engineering
   plastics (Electronics)                      53,000           1,038,814
FORVAL
   Producer of telephone systems
   (Telecommunications)                        40,000             230,389
FUJI FIRE AND MARINE INSURANCE
   Non-life insurance firm
   (Financial Services)                       344,000             656,505


- ----------------
See footnotes on page 50.


                                       40

<PAGE>


PORTFOLIO OF INVESTMENTS
OCTOBER 31, 1998
Seligman Henderson Global Smaller Companies Fund

                                             SHARES              VALUE
                                            -------             -------
JAPAN  (CONTINUED)
FUJICCO
   Food manufacturer (Consumer
   Goods and Services)                         83,300         $ 1,314,038
FUJITSU BUSINESS SYSTEMS
   Distributor of computer
   equipment (Business Services)              107,900           1,127,929
GLORY KOGYO
   Manufacturer and major exporter
   of currency-handling machines
   (Manufacturing)                            108,000           1,309,091
  H.I.S.
   Travel agency specializing in
   overseas and package tours
   (Leisure and Hotels)                        56,000           1,059,102
HIGASHI NIHON HOUSE
   Home builder (Construction
   and Property)                              206,000             655,233
HITACHI INFORMATION SYSTEMS
   Leading data processing firm
   (Computer Software)                         84,000             758,220
HITACHI MEDICAL
   Manufacturer of medical
   equipment (Medical Products
   and Technology)                             76,800             725,581
HOGY MEDICAL
   Producer of disposable surgical
   gowns and medical supplies
   (Medical Products and
   Technology)                                 28,000             655,921
HORIBA INSTRUMENTS
   Manufacturer of instruments
   and analyzers (Electronics)                147,000           1,353,424
IINO KAIUN KAISHA
   Shipping company
   (Transportation)                           643,000           1,044,720
JAPAN INFORMATION PROCESSING SERVICE
   Computer software developer
   (Computer Software)                         86,100             680,954
JOSHIN DENKI
   Budget electrical appliance
   retailer (Retailing)                       124,000             261,165
KENTUCKY FRIED CHICKEN
   Fast food restaurants
   (Restaurants)                              134,000           1,128,906
KISSEI PHARMACEUTICAL
   Manufacturer, seller, importer,
   and exporter of medical products
   (Drugs and Health Care)                     57,000             842,321
KOMATSU SEIREN
   Printer of long-staple fabrics
   (Manufacturing)                            160,000             481,410
KOMORI
   Manufacturer of offset printing
   machines (Capital Goods)                   101,000           1,858,070
MASPRO DENKOH
   Manufacturer of reception-related
   telecommunication equipment
   (Telecommunications)                       108,600             774,881
MITSUBISHI CABLE INDUSTRIES
   Manufacturer of wire and cable
   products (Manufacturing)                   280,000             426,048
MITSUBISHI GAS CHEMICAL
   Chemical producer
   (Chemicals)                                137,000            359, 209
  MITSUI HOME
   Home builder (Construction
   and Property)                              325,000           1,570,170
NAMURA SHIPBUILDING
   Shipbuilder (Capital Goods)                241,000             414,356
NICHICON
   Manufacturer of electrical
   equipment (Manufacturing)                   66,000             717,730
NIPPON BROADCASTING SYSTEM
   Vendor of time slots of radio
   broadcasting;  producer and
   marketer of radio programs
   (Media)                                     17,000             577,262
NIPPON SEIKI
   Manufacturer of automobile
   components (Automotive Parts
   Manufacturing)                             126,000             834,043
NISHIO RENT ALL
   Rentor of construction equipment
   (Construction and Property)                101,500             663,142
NISSHA PRINTING
   Integrated printing firm
   (Paper and Printing)                       125,000             730,711

- ----------------
See footnotes on page 50.

                                       41


<PAGE>




PORTFOLIO OF INVESTMENTS
OCTOBER 31, 1998
Seligman Henderson Global Smaller Companies Fund

                                             SHARES              VALUE
                                            -------             -------
JAPAN (CONTINUED)
NISSHIN FIRE & MARINE INSURANCE
   Non-life insurance company
   (Financial Services)                       288,000             740,271
NITTETSU MINING
   Open cast coal miner
   (Resources)                                102,000             256,918
NOVA
   Provider of language instruction
   courses (Consumer Goods
   and Services)                              132,000             397,163
OKINAWA ELECTRIC POWER
   Supplier of electricity to Okinawa
   Island (Electric Utilities)                 55,300             941,277
OLYMPUS OPTICAL
   Manufacturer of optoelectronic
   and other products (Electronics)           186,000           1,918,762
OTSUKA KAGU
   Furniture retailer (Retailing)              19,200           1,056,351
RYOYO ELECTRO
   Distributor of electronic goods
   (Electronics)                              152,000           1,021,827
SAGAMI CHAIN
   Noodle restaurant chain
   (Restaurants)                               94,000             832,323
SANKYO
   Manufacturer of pachinko game
   equipment (Manufacturing)                  117,100           2,003,258
  SANYO SPECIAL STEEL
   Steel manufacturer (Metals)                681,000             538,594
SHIMACHU
   Furniture retailer (Retailing)              61,600           1,043,215
SODICK
   Manufacturer of
   electrodischargers
   (Manufacturing)                            273,000             528,046
SUNDRUG
   Operator of outlet drug stores
   (Retailing)                                 82,600           1,079,321
TAKASAGO INTERNATIONAL
   Specialty chemicals producer,
   including fragrances, flavorings,
   and aromatic chemicals
   (Chemicals)                                146,000             739,256
TOKYO STYLE
   Manufacturer of women's
   ready-to-wear apparel
   (Manufacturing)                             82,000             820,529
TOWA PHARMACEUTICAL
   Generic drug wholesaler
   (Drugs and Health Care)                    123,000             719,020
TOYO INK MANUFACTURING
   Ink manufacturer (Chemicals)               224,000             456,377
TSUBAKI NAKASHIMA
   Manufacturer of ball bearings
   (Manufacturing)                            290,900           1,517,957
TSUDAKOMA
   Manufacturer of air-jet looms
   (Manufacturing)                            674,000           1,013,969
TSUTSUMI JEWELRY
   Manufacturer and retailer of
   jewelry (Retailing)                        107,200           1,336,256
XEBIO
   Retailer of outdoor clothing
   (Retailing)                                110,400           2,021,509
YOKOHAMA REITO
   Cold storage, freezing, and
   loading services (Distribution)            118,000             587,337
                                                         ----------------
                                                               50,392,808
                                                         ----------------
NETHERLANDS  3.36%
ATHLON GROEP
   Automotive service supplier
   (Consumer Goods and Services)               62,680           1,780,205
  BENCKISER (SERIES B)
   Producer and supplier of
   household cleaning
   products (Consumer
   Goods and Services)                         75,134           4,263,807
CMG
   Information technology
   consulting (Support Services)              749,000          17,422,976
SAMAS GROEP
   Manufacturer of office
   furniture (Manufacturing)                  344,057           5,733,976
                                                         ----------------
                                                               29,200,964
                                                         ----------------
NEW ZEALAND  0.10%
AUCKLAND INTERNATIONAL AIRPORT*
   Owner and operator of the
   Auckland International
   Airport (Transportation)                   395,000             409,978

- ----------------
See footnotes on page 50.

                                       42


<PAGE>




PORTFOLIO OF INVESTMENTS
OCTOBER 31, 1998
Seligman Henderson Global Smaller Companies Fund

                                             SHARES              VALUE
                                            -------             -------
NEW ZEALAND (CONTINUED)
SKY NETWORK TELEVISION*
   Operator of pay television
   (Media)                                    352,100          $  447,491
                                                         ----------------
                                                                  857,469
                                                         ----------------
NORWAY  2.18%
EKORNES
   Manufacturer of home
   furnishings (Manufacturing)                855,577           7,859,585
MERKANTILDATA
   Distributor and supplier
   of information technology
   (Computer Software)                         18,200             183,291
TANDBERG  TELEVISION*
   Developer  of products  and
   systems  used for  television
   signals which transfer programs
   from channel sources to
   viewers (Media)                          1,180,000          10,920,127
                                                         ----------------
                                                               18,963,003
                                                         ----------------
SINGAPORE  0.21%
KEPPEL FELS
   Builder of offshore drilling
   rigs, production platforms,
   and related specialized vessels
   (Industrial Goods and Services)            336,000             608,463
VENTURE MANUFACTURING
   Contract manufacturer for
   the electronics industry
   (Electronics)                              205,000             681,860
  WANT WANT HOLDINGS
   Manufacturer of rice crackers
   (Consumer Goods and Services)              462,360             550,209
                                                         ----------------
                                                                1,840,532
                                                         ----------------
SWEDEN  2.15%
ANGPANNEFORENINGEN (SERIES B)
   Engineering consultancy
   (Business Services)                        130,481           1,992,076
BURE INVESTMENT AKTIEBOLAGET
   Investment company
   (Financial Services)                       448,995           5,962,022
SWEDEN (CONTINUED)
FINNVEDEN (SERIES B)
   Industrial conglomerate
   (Manufacturing)                            133,246           2,282,166
MUNSKJO
   Producer of specialty paper
   (Paper and Printing)                       284,800           2,192,315
NOBEL BIOCARE
   Developer of titanium implants,
   hearing aids, and facial
   prostheses (Medical Products
   and Technology)                            513,484           6,258,385
                                                         ----------------
                                                               18,686,964
                                                         ----------------
SWITZERLAND  2.95%
BON APPETIT HOLDING++
   Food retailer (Retailing)                    7,996           4,420,197
BON APPETIT HOLDING (WARRANTS)
   Food retailer (Retailing)                    9,653               5,358
HERO
   Producer and exporter of
   food and beverages (Consumer
   Goods and Services)                          7,340           4,644,194
KABA HOLDING
   Provider of electronic and
   mechanical security systems
   (Business Services)                         15,000           7,270,776
SELECTA GROUP
   Owner and operator of food
   and beverage vending machines
   (Consumer Goods and Services)               42,178           9,301,446
                                                         ----------------
                                                               25,641,971
                                                         ----------------
TAIWAN  0.15%
TAIWAN AMERICAN FUND*
   Closed-end fund investing
   in Taiwan (Miscellaneous)                   86,600           1,337,970
                                                         ----------------
THAILAND  0.05%
HANA MICROELECTRONICS
   Circuit board manufacturer
   (Electronics)                              171,500             458,668
                                                         ----------------
UNITED KINGDOM  18.06%
AEA TECHNOLOGY
   Provider of engineering and
   research and development
   services (Industrial Goods
   and Services)                              300,000           3,664,965

- ----------------
See footnotes on page 50.

                                       43


<PAGE>




PORTFOLIO OF INVESTMENTS
OCTOBER 31, 1998
Seligman Henderson Global Smaller Companies Fund

                                             SHARES              VALUE
                                            -------             -------
UNITED KINGDOM (CONTINUED)
ALLIED LEISURE
   Bowling alley operator
   (Leisure and Hotels)                     4,625,000         $ 1,934,984
ASHTEAD GROUP
   Rentor of equipment for
   the construction industry
   (Construction and Property)              4,010,000          13,085,933
BTG
   Technology transfer company
   assisting in the commercialization
   of technological innovations
   (Technology)                               328,000           1,825,119
CAPITAL RADIO
   Commercial radio station
   (Media)                                    680,200           5,691,574
CHIROSCIENCE GROUP
   Pharmaceutical company
   specializing in pharmaceuticals
   for cancer, pain, and
   inflammatory disorders
   (Drugs and Health Care)                    255,000           1,194,879
CLINTON CARDS
   Retailer of greeting cards
   (Retailing)                              3,107,527           7,098,609
COBHAM
   High-integrity engineering
   (Manufacturing)                            600,000           7,470,504
DAWSON GROUP
   Rentor of commercial vehicles
   (Transportation)                         1,324,600           4,322,600
DIAGONAL
   Provider of information
   technology services
   (Business Services)                        105,000           1,546,314
DRUCK HOLDINGS
   Worldwide engineering group
   (Industrial Goods and Services)            421,200           1,973,659
ELECTRONICS BOUTIQUE
Electronic games retailer
(Retailing)                                 6,240,000           8,562,965
F.I. GROUP
   Designer and builder of
   software applications
   (Computer Software)                      4,000,000          16,065,600
FITNESS FIRST*
   Owner and operator
   of health and
   fitness facilities
   (Drugs and Health Care)                    172,083          $  691,154
GAMES WORKSHOP GROUP
   Manufacturer and retailer
   of specialty games (Retailing)             350,000           3,221,488
GWR GROUP
   Local commercial radio
   station operator (Media)                 1,733,700           5,556,079
HOLMES PLACE
   Owner and operator of health
   clubs (Leisure and Hotels)                 550,000           1,376,035
IBC GROUP
   Business information
   and education group
   (Business Services)                      1,695,000           9,460,003
ICON (ADRS)*
   Provider of clinical research
   and development services to
   the pharmaceutical and
   biotechnology industries
   (Business Services)                        205,000           5,752,813
NATIONAL EXPRESS GROUP
   Long distance coach services
   operating in the UK and
   Europe (Transportation)                    625,000          10,616,266
PARITY
   Provider of software engineering
   and consulting services
   (Computer Software)                      1,105,000           8,367,709
PEPTIDE THERAPEUTICS
   Biopharmaceuticals
   development company
   (Drugs and Health Care)                    150,000             200,820
PIZZA EXPRESS
   Operator of restaurant chain
   (Restaurants)                            1,000,000          12,718,600
SHIRE PHARMACEUTICALS*
   Biotechnology company
   specializing in metabolic bone
   and Alzheimer's diseases
   (Drugs and Health Care)                    362,500           2,581,269
TILBURY DOUGLAS
   Building contractor
   (Construction and Property)              2,500,000          10,041,000

- ----------------
See footnotes on page 50.

                                       44


<PAGE>




PORTFOLIO OF INVESTMENTS
OCTOBER 31, 1998
Seligman Henderson Global Smaller Companies Fund

                                             SHARES              VALUE
                                            -------             -------
UNITED KINGDOM (CONTINUED)
TOROTRAK*
   Designer and developer of
   automobile transmission
   systems (Automotive Parts
   Manufacturing)                             328,000             557,142
TRIFAST
   Manufacturer and distributor
   of fasteners for the
   electronics industry
   (Electrical Distribution)                  463,800           3,997,272
  TRINITY INTERNATIONAL HOLDINGS
   Publisher of regional
   newspapers in the UK, US,
   and Canada (Media)                         935,100           7,034,180
VANGUARD MEDICA GROUP
   Emerging biopharmaceutical
   company planning to develop
   and commercialize new drugs
   (Drugs and Health Care)                    184,543             599,135
VANGUARD MEDICA GROUP
   (WARRANTS)*
   Emerging biopharmaceutical
   company planning to develop
   and commercialize new drugs
   (Drugs and Health Care)                     26,362               1,324
                                                         ----------------
                                                              157,209,994
                                                         ----------------
UNITED STATES  40.31%
ACXIOM*
   Provider of data processing
   services (Computer Software)               186,300           4,692,431
AFFILIATED  COMPUTER  SERVICES
(CLASS A)*
   Provider of  information
   technology services and
   electronic funds transfer
   processing (Business Services)             150,500           5,568,500
ALLIED WASTE INDUSTRIES
   Provider of integrated waste
   disposal services (Industrial
   Goods and Services)                        282,600           6,084,731
AMERICAN CAPITAL STRATEGIES
   Provider of commercial
   financing (Financial Services)              97,200           1,281,825
AMERICAN HOMEPATIENT*
   Provider of home health
   care services (Drugs and
   Health Care)                                76,100          $  197,384
AMERICAN HOMESTAR*
   Retailer and producer of
   manufactured homes
   (Manufacturing)                            295,700           4,805,125
AMERICAN MANAGEMENT SYSTEMS*
   Provider of information
   technology consulting services
   (Business Services)                         50,000           1,540,625
ANALOG DEVICES*
   International manufacturer
   and marketer of linear and
   digital integrated circuits
   (Semiconductors)                           100,700           2,001,413
ANTEC*
   Developer and supplier of fiber
   optic transmission, construction,
   and maintenance equipment
   for the cable television industry
   (Telecommunications)                       205,900           3,403,784
AURORA FOODS*
   Producer and marketer of
   brand name food products
   (Consumer Goods and Services)              113,000           1,977,500
AVANT!*
   Developer and marketer
   of software products that
   assist design engineers
   (Computer Software)                        205,300           3,496,516
  AVX
   Manufacturer and supplier of
   passive electronic components
   and related products
   (Electronics)                              291,600           5,175,900
BA MERCHANT SERVICES (CLASS A)*
   Provider of payment processing
   services (Business Services)               188,200           3,058,250
BACOU USA*
   Designer and manufacturer of
   personal protective gear
   (Industrial Goods and Services)            205,000           3,574,687

- ----------------
See footnotes on page 50.

                                       45


<PAGE>




PORTFOLIO OF INVESTMENTS
OCTOBER 31, 1998
Seligman Henderson Global Smaller Companies Fund

                                             SHARES              VALUE
                                            -------             -------
UNITED STATES (CONTINUED)
BARNES AND NOBLE*
   Owner and operator of retail
   book stores and superstores
   (Retailing)                                132,300        $  4,316,288
BARR LABORATORIES*
   Developer, manufacturer, and
   marketer of generic prescription
   drugs (Drugs and Health Care)              115,300           3,941,819
BISYS GROUP*
   Provider of data processing
   services for banks (Business
   Services)                                  105,700           4,637,588
BUDGET GROUP*
   Owner and operator of
   Budget Rent-a-Car franchises
   (Consumer Goods and Services)               65,200           1,169,525
BURR-BROWN*
   Manufacturer of microelectric
   data devices for business
   end-users (Technology)                     285,600           5,310,375
CABOT OIL & GAS (CLASS A)
   Explorer, developer, and producer
   of oil and gas (Energy)                    114,200           1,941,400
CALENERGY*
   Developer of geothermal energy
   power (Electric Utilities)                 203,300           5,565,338
CALPINE*
   Developer of power generation
   facilities (Electric Utilities)            397,900           8,853,275
CARRIAGE SERVICES*
   Provider of funeral services
   and products (Consumer Goods
   and Services)                              148,600           3,473,525
CASELLA WASTE SYSTEMS*
   Provider of non-hazardous solid
   waste collection, disposal,
   and recycling services
   (Capital Goods)                            140,400           4,115,475
CCA PRISON REALTY TRUST
   Real estate investment trust
   investing in prisons
   (Financial Services)                       196,800           4,624,800
CERIDIAN*
   Provider of data processing
   services (Business Services)                79,800           4,578,525
COGNEX*
Manufacturer of machine vision
systems (Electronics)                         254,300         $ 3,949,597
COMPDENT*
   Provider of managed-care
   dental services (Medical
   Products and Technology)                   281,800           3,399,213
COPART*
   Auctioneer of damaged
   vehicles for insurance
   companies (Retailing)                      129,200           2,907,000
CORPORATE EXPRESS*
   Supplier of office products
   (Retailing)                                518,900           6,048,428
COX RADIO (CLASS A)*
   Operator of radio stations
   (Media)                                    196,800           7,367,700
CRUSADER HOLDING*
   Provider of community
   banking services, including
   residential mortgages and
   commercial leases (Financial
   Services)                                   35,910             426,431
DUANE READE*
   Retail drugstore chain
   (Retailing)                                106,400           4,109,700
EDUTREK INTERNATIONAL*
   Operator of post-secondary
   educational colleges in three
   countries (Technology)                     187,700           1,378,422
FUSION SYSTEMS (RIGHTS)*
   Supplier of ultraviolet curing
   systems, photostabilizers, and
   single-wafer ashers used in
   semiconductor device
   manufacturing (Capital Goods)               70,000               1,094
GENERAL CABLE
   Designer, developer, manufacturer,
   marketer, and distributor of wire
   and cable products for the
   communications and
   electrical markets
   (Manufacturing)                             78,000           1,540,500
GENERAL SEMICONDUCTORS*
   Designer and manufacturer
   of power semiconductors
   (Technology)                               191,200           1,517,650

- ----------------
See footnotes on page 50.

                                       46


<PAGE>




PORTFOLIO OF INVESTMENTS
OCTOBER 31, 1998
Seligman Henderson Global Smaller Companies Fund

                                             SHARES              VALUE
                                            -------             -------
UNITED STATES (CONTINUED)
GLENAYRE TECHNOLOGIES*
   Manufacturer of paging
   infrastructure equipment
   (Telecommunications)                       338,300        $  2,040,372
HA-LO INDUSTRIES*
   Distributor of specialty
   advertising products
   (Advertising)                              208,300           5,884,475
HANGER ORTHOPEDIC GROUP*
   Provider of orthopedic and
   prosthetic rehabilitation services
   (Medical Products
   and Technology)                            261,600           5,166,600
HEARST-ARGYLE TELEVISION (CLASS A)*
   Television broadcaster
   (Media)                                     42,000           1,165,500
HENRY SCHEIN*
   International marketer of health
   care products and services
   to medical providers (Medical
   Products and Technology)                    91,800           3,551,513
HMT TECHNOLOGY*
   Supplier of high-performance
   thin-film disks for high-end,
   high-capacity, hard disk drives
   (Technology)                               180,200           1,548,594
INDUS INTERNATIONAL*
   Worldwide developer and
   marketer of management
   software and implementation
   services (Business Services)               199,700           1,073,388
INSIGNIA/ESG HOLDINGS*
   Provider of real estate services
   (Financial Services)                       143,799           1,833,437
INSO*
   Marketer and developer of
   textual information software
   (Computer Software)                        111,900           2,115,609
INTEGRATED  ELECTRICAL   SERVICES*
   Provider  of  electrical   contracting
   and  maintenance services to
   the commercial, industrial,
   and residential markets
   (Electronics)                              111,400           1,886,838
IVEX PACKAGING*
   Manufacturer of specialty
   packages (Consumer Goods
   and Services)                              151,700           2,683,194
JACOR COMMUNICATIONS*
   Radio broadcaster (Media)                    8,900             490,056
JOURNAL REGISTER*
   Newspaper publisher (Media)                341,000           5,477,313
KEYSTONE AUTOMOTIVE INDUSTRIES*
   Distributor of aftermarket
   collision replacement parts for
   automobiles and light trucks
   (Distribution)                             139,600           2,600,050
LANDCARE USA*
   Provider of landscape and tree
   services in the commercial and
   institutional markets (Business
   Services)                                  251,900           2,015,200
MARCAM SOLUTIONS*
   Supplier of business planning
   applications and services
   (Computer Software)                        133,600             918,500
MARKET FACTS*
   Compiler of information for
   the optimization of the
   marketing decision process
   (Business Services)                        109,900           2,644,469
MCDERMOTT  INTERNATIONAL
   Manufacturer  of steam-
   generating and  environmental
   equipment and products;
   provider of engineering
   and construction services
   (Industrial Goods and Services)            121,800           3,570,263
MEMBERWORKS*
   Provider of membership service
   programs for various industries
   (Consumer Goods
   and Services)                              135,400           3,122,663
METAMOR WORLDWIDE*
   International provider of
   information technology
   and staffing services
   (Business Services)                        100,000           2,584,375

- ----------------
See footnotes on page 50.

                                       47


<PAGE>




PORTFOLIO OF INVESTMENTS
OCTOBER 31, 1998
Seligman Henderson Global Smaller Companies Fund

                                             SHARES              VALUE
                                            -------             -------
UNITED STATES (CONTINUED)
MICROCHIP TECHNOLOGY*
   Supplier of microcontrollers
   and related specialty
   memory products (Technology)               190,100         $ 5,156,463
MICROGRAFX*
Developer and marketer of
graphics applications
and software (Business Services)               30,900             281,962
MMI COMPANIES
   International health care risk
   management company
   (Financial Services)                       125,400           2,014,237
MODIS PROFESSIONAL SERVICES*
   Provider of temporary
   personnel services
   (Business Services)                        584,200          10,296,525
NATIONAL INSTRUMENTS*
   Provider of instrumentation
   hardware and software products
   for the engineering and
   scientific industries (Technology)          55,800           1,529,269
NEW AMERICAN HEALTHCARE*
   Operator of acute-care hospitals
   (Drugs and Health Care)                     96,000           1,020,000
NOVA*
   Producer and marketer of
   petrochemicals and plastics;
   natural gas pipeline operator
   (Business Services)                        172,672           4,985,904
OAK INDUSTRIES*
   Manufacturer of cable television
   connectors and fiber optic
   components (Electronics)                    29,000             784,812
OM GROUP
   Producer of specialty chemicals
   (Chemicals)                                183,900           5,999,737
OMNICARE
   Provider of pharmaceutical
   services to long-term care
   institutions (Drugs and
   Health Care)                                95,700           3,307,631
PERSONNEL GROUP OF AMERICA*
   Provider of personnel
   staffing services
   (Business Services)                        529,300           8,204,150
PETERSEN COMPANIES (CLASS A)*
   Special-interest magazine
   publisher (Media)                          159,700         $ 4,242,031
PHARMACEUTICAL PRODUCT
   DEVELOPMENT*
   Provider of consulting services in
   the discovery, environmental, and
   life sciences (Medical Products
   and Technology)                             74,300           2,015,387
PHYSICIANS' SPECIALTY*
   Provider of practice management
   services to physicians
   (Drugs and Health Care)                    200,000           1,450,000
PIER 1 IMPORTS
   Retailer specializing in
   decorative home furnishings,
   gifts, and related items
   (Retailing)                                162,000           1,498,500
PRE-PAID LEGAL SERVICES*
   Underwriter and marketer
   of legal service plans
   (Business Services)                        122,300           2,927,556
PREMIER PARKS*
   Owner and operator of
   regional theme parks
   (Leisure and Hotels)                       365,700           8,113,969
PRIMARK*
Provider of information
through software and
databases (Consumer Goods
and Services)                                 190,100           5,132,700
PROFESSIONAL DETAILING*
   Provider of consulting services
   to the pharmaceutical industry
   (Business Services)                        159,200           3,781,000
PROVANT*
   Provider of training and
   development services
   (Business Services)                        161,200           1,884,025
PROVINCE HEALTHCARE*
   Provider of health care services
   in non-urban markets (Drugs
   and Health Care)                           187,900           4,914,759

- ----------------
See footnotes on page 50.

                                       48


<PAGE>




PORTFOLIO OF INVESTMENTS
OCTOBER 31, 1998
Seligman Henderson Global Smaller Companies Fund

                                             SHARES              VALUE
                                            -------             -------
UNITED STATES (CONTINUED)
PSS WORLD MEDICAL*
   Distributor of medical
   supplies, equipment, and
   pharmaceuticals (Drugs
   and Health Care)                           507,200        $ 11,174,250
QUORUM HEALTH GROUP*
   Owner and operator of
   acute-care hospitals
   (Drugs and Health Care)                     77,000           1,114,094
RENAL CARE GROUP*
   Provider of dialysis services
   (Medical Products
   and Technology)                             16,400             477,137
RENEX*
   Provider of dialysis and
   ancillary services (Drugs and
   Health Care)                               189,300             845,934
SANMINA*
   Provider of services for
   equipment manufacturers
   in the electronic industry
   (Industrial Goods
   and Services)                              121,800           5,009,025
SANTA FE ENERGY RESOURCES*
   Explorer, producer, and
   developer of oil and gas
   (Resources)                                289,800           2,354,625
SCHEIN PHARMACEUTICAL*
   Developer, manufacturer, and
   vendor of generic
   pharmaceuticals (Drugs and
   Health Care)                                72,400             769,250
SINCLAIR BROADCAST GROUP (CLASS A)*
   Diversified  broadcasting
   company that owns
   and services television and
   radio stations (Media)                     132,000           1,707,750
SOLA INTERNATIONAL*
   Designer and manufacturer
   of optical supplies (Consumer
   Goods and Services)                         41,000             786,687
STEINWAY MUSICAL INSTRUMENTS*
   Manufacturer of musical
   equipment (Consumer
   Goods and Services)                         90,600           1,998,862
STRUCTURAL DYNAMICS RESEARCH*
   Developer of mechanical design
   software (Computer Software)               138,200         $ 2,003,900
SUNGARD DATA SYSTEMS*
   Provider of computer disaster
   recovery  services,  as well as
   health care information and
   investment support systems
   (Computer Software)                         62,300           2,102,625
  SUPERIOR SERVICES*
   Provider of solid waste collection,
   disposal, and recycling
   services (Business Services)               197,700           4,126,987
TOTAL RENAL CARE HOLDINGS*
   Provider of dialysis services
   (Drugs and Health Care)                    402,299           9,856,326
TRANSACTION SYSTEMS ARCHITECTS*
   Producer of software products
   for the global electronic funds
   transfer market (Technology)               125,100           4,515,328
TRIANGLE PHARMACEUTICALS*
   Developer of new drugs,
   primarily in the antiviral area
   (Drugs and Health Care)                    127,500           1,490,156
UCAR INTERNATIONAL*
   Manufacturer of graphite
   and carbon electrodes
   (Capital Goods)                            278,600           5,014,800
UNIGRAPHICS SOLUTIONS (Class A)*
   International provider of services
   used for virtual product develop-
   ment (Business Services)                   192,300           1,634,550
UNIVERSAL HEALTH SERVICES*
   Owner and operator of health
   care institutions (Drugs
   and Health Care)                            79,700           4,089,606
U.S. FOODSERVICE*
   Distributor of food and
   related products (Business
   Services)                                  134,500           6,388,750
VALLEY NATIONAL GASES*
   Packager and distributor of
   gases (Chemicals)                          282,300           1,940,812

- ----------------
See footnotes on page 50.

                                       49


<PAGE>




PORTFOLIO OF INVESTMENTS
OCTOBER 31, 1998
Seligman Henderson Global Smaller Companies Fund

                                             SHARES              VALUE
                                            -------             -------
UNITED STATES (CONTINUED)
VLASIC FOODS INTERNATIONAL*
   Manufacturer and marketer
   of branded convenience
   food products (Consumer
   Goods and Services)                        254,100        $  4,748,494
WATERS*
   Manufacturer of liquid
   chromatography instruments
   (Medical Products
   and Technology)                             29,500           2,168,250
WATSON PHARMACEUTICALS*
   Manufacturer of off-patent
   medications (Medical Products
   and Technology)                             73,900           4,110,688
WILMAR INDUSTRIES*
   Marketer and distributor of
   repair and maintenance
   products to the apartment
   housing market (Consumer
   Goods and Services)                        145,000           3,516,250
XILINX*
   Supplier of field-programmable
   gate arrays (Technology)                    48,500           2,165,828
YOUTH SERVICES*
   Operator of residential and
   community-based programs
   for at-risk youths
   (Support Services)                         214,200             833,372
                                                      -------------------
                                                              350,889,701
                                                      -------------------
TOTAL COMMON STOCKS
  (Cost $742,359,162)                                         779,737,667
                                                      -------------------
PREFERRED STOCKS  0.64%
  (Cost $7,883,115)
GERMANY 0.64%
GERRY WEBER INTERNATIONAL
   Designer and manufacturer
   of ladies' apparel
   (Manufacturing)                        275,472shs.         $ 5,579,390
                                                        -----------------
CONVERTIBLE BONDS  0.21%
  (Cost $1,698,581)
FRANCE 0.21%
L'EUROPENNE D'EXTINCTEURS
   41/4%, 1/1/2005
   (Manufacturing)                         $2,190,800          1,796,709
                                                        -----------------
SHORT-TERM HOLDINGS  1.15%
  (Cost $10,000,000)                                           10,000,000
                                                        -----------------
TOTAL INVESTMENTS  91.58%
  (Cost $761,940,858)                                         797,113,766
OTHER ASSETS
  LESS LIABILITIES  8.42%                                      73,264,088
                                                         ----------------
NET ASSETS  100.00%                                          $870,377,854

- ----------------

*    Non-income producing security.

++   Affiliated  issuers  (a  Series'  holdings  representing  5% or more of the
     outstanding voting securities).

Descriptions  of  companies  have not been audited by Deloitte & Touche LLP. See
Notes to Financial Statements.


                                       50


<PAGE>

INVESTMENT REPORT

Seligman Henderson Global Technology Fund


PERFORMANCE REVIEW

Seligman Henderson Global Technology Fund posted a return of -0.79% based on the
net asset  value of Class A shares for the year ended  October  31,  1998.  This
compares to the 5.31% and 11.10% total returns of its peers,  as measured by the
Lipper Global Funds Average and the Lipper Science and Technology Funds Average,
respectively.  The Morgan  Stanley  Capital  International  World Index posted a
total return of 15.69% for the same period.

The  caution  that  we  expressed  in our  report  of  April  30,  1998,  proved
appropriate,  although our forecast did not extend to anticipating  the scale of
the collapse in technology share prices from August through October. Without the
sharp  rebound  that we enjoyed  over the last three weeks of October,  we would
have been  obliged to report on one of the most  disappointing  half years since
the Fund's launch.

US technology shares fared least poorly over the period although,  at one stage,
the Pacific Stock  Exchange  Technology  Index had fallen more than 25% from its
late July high. Smaller companies in the sector declined  throughout the summer,
and by early  October,  had  fallen  more than 40% from  their  April  peak.  In
contrast,  European  technology  shares proved  resilient for most of the period
before collapsing in September.  Meanwhile, Asian technology companies continued
their long period of underperformance.

FUND OBJECTIVE

Seligman Henderson Global Technology Fund, which commenced operations on May 23,
1994,  seeks  long-term  capital  appreciation  by  investing in  securities  of
companies around the world that operate in the technology and technology-related
industries.


                                    [PHOTO]


INTERNATIONAL  TEAM: (FROM LEFT) EMMA PARKINSON,  TIM WOOLLEY,  DAVID MAGLIOCCO,
BRIAN ASHFORD-RUSSELL (PORTFOLIO MANAGER)






PORTFOLIO STRATEGY

     WE RAISED  SUBSTANTIAL  LIQUIDITY  DURING THE SUMMER,  TAKING  PROFITS IN A
BROAD RANGE OF EUROPEAN STOCKS.  A SIGNIFICANT  PROPORTION OF THAT LIQUIDITY WAS
LATER REINVESTED IN THE US,  ESPECIALLY JUST AFTER THE END OF THE FUND'S OCTOBER
FISCAL YEAR.

     WE  BELIEVE  THAT  THE  EARLY  OCTOBER  LOW  FOR  THE  SECTOR  HAD  ALL THE
CHARACTERISTICS  OF A MAJOR  BOTTOM -- ONE WHICH SEEMs  LIKELY,  AT LEAST IN THE
SHORT  TERM,  TO BE MARKED BY AN END TO THE  EXTRAORDINARY  UNDERPERFORMANCE  OF
SMALL-CAP US TECHNOLOGY  SHARES. WE THEREFORE ADDED TO OUR POSITIONS IN A NUMBER
OF SMALL-  AND  MID-CAP  COMPANIES  SUCH AS Amkor  Technology,  DII  Group,  AND
Ziff-Davis.  WE HAVE ALSO ADDED TO OUR CYCLICAL TECHNOLOGY  WEIGHTING IN THE US.
THIS  REFLECTS OUR BELIEF THAT  CONDITIONS  IN THE  SEMICONDUCTOR  MARKET ARE NO
LONGER DETERIORATING, AND THAT A HEALTHY PC MARKET SHOULD ALLOW A BETTER BALANCE
BETWEEN COMPONENT SUPPLY AND DEMAND.


                                     [PHOTO]


US TEAM: (FROM LEFT) PAUL KRIEGER,  PATRICK RENDA, LAWRENCE ROSSO,STORM BOSWICK,
(SEATED) PAUL WICK (PORTFOLIO MANAGER); (NOT PICTURED) KEI YAMAMOTO


                                      51

<PAGE>


    THE IMPROVEMENT IN THESE AREAS SHOULD ALSO PROVIDE THE CONDITIONS NECESSARY
FOR BETTER RELATIVE PERFORMANCE FROM ASIAN TECHNOLOGY SHARES. CONSEQUENTLY, WE
HAVE NOT REDUCED OUR ASIAN WEIGHTING TO FINANCE OUR INCREASED US EXPOSURE, BUT
HAVE INSTEAD CUT BACK ON OUR EUROPEAN POSITIONS. IN SO DOING WE HAVE TAKEN
PROFITS IN SOME OF OUR MOST SUCCESSFUL HOLDINGS SUCH AS COLT Telecom Group,
Vodafone, CMG, AND Logica.

SUMMARY
The recent spectacular rise in both markets and technology shares has taken us
back into more neutral territory. However, we expect that the sector will enjoy
another upward leg over the next several months, even if a pause occurs in the
very short term. Confidence is slowly rebuilding; demand in the PC and
networking markets remains robust, and at the margin, is improving in the
components, communications, and wireless areas. Year 2000 issues may have the
effect of concentrating corporate information technology (IT) demand into the
first half of next year, thereby encouraging investors to chase (what may prove
to be unsustainable) earnings momentum in the sector. European demand is proving
resilient in the face of the global economic slowdown, a reflection of the far
lower rates of IT penetration in Europe as compared to the US. Asian demand,
although depressed, should be improving by the second half of 1999.
Consequently, we anticipate further strength in the technology sector and do not
expect any significant setbacks in early 1999, and if setbacks should occur
then, they will be from considerably higher levels than at the end of October
1998.




                                       52



<PAGE>

Performance and Portfolio Overview
Seligman Henderson Global Technology Fund

COUNTRY ALLOCATION
OCTOBER 31, 1998
                                                      MSCI
                                                      WoRLD
                                           fund       INDEX
                                          -------    -------
CONTINENTAL EUROPE                        14.54%     23.99%
    Austria                                    --       0.16
    Belgium                                    --       0.89
    Denmark                                    --       0.45
    Finland                                  1.09       0.55
    France                                   3.85       4.49
    Germany                                  1.56       4.96
    Ireland                                    --       0.22
    Italy                                    1.10       2.28
    Luxembourg                               1.18         --
    Netherlands                              1.86       2.57
    Norway                                     --       0.23
    Portugal                                   --       0.35
    Spain                                      --       1.60
    Sweden                                   2.39       1.31
    Switzerland                              1.51       3.93
JAPAN                                        4.56      10.22
PACIFIC                                      5.66       2.82
    Australia                                1.16       1.29
    Hong Kong                                  --       1.12
    New Zealand                                --       0.09
    Singapore                                2.44       0.32
    South Korea                              0.14         --
    Taiwan                                   1.92         --
UNITED KINGDOM                              10.87      10.43
UNITED STATES                               52.46      50.61
OTHER                                        5.86       1.93
    Canada                                   0.30       1.93
    Israel                                   5.56         --
OTHER ASSETS LESS LIABILITIES                6.05         --
                                         --------   --------
TOTAL                                      100.00%   100.00%
                                         ========   =======


LARGEST INDUSTRIES
October 31, 1998

COMPUTER SOFTWARE                   22.5%    $161,513,880
COMPUTER HARDWARE/PERIPHERALS       12.9%    $ 92,587,856
COMPUTER AND BUSINESS SERVICES       9.7%    $ 69,739,884
SEMI-CONDUCTORS                      8.8%    $ 63,305,565
ELECTRONICS                          8.0%    $ 58,683,716


REGIONAL ALLOCATION
OCTOBER 31, 1998

United States         52.46%     52.46%
Continental Europe    14.54%     14.54%
United Kingdom        10.87%     10.87%
Other                  5.86%      5.86%
Pacific                5.66%      5.66%
Japan                  4.56%      4.56%
Other Assets Less
Liabilities            6.05%      6.05%


LARGEST PORTFOLIO HOLDINGS
October 31, 1998

SECURITY                                     VALUE
- ----------                               ---------------
EMC (US)                                  $32,187,500
Synopsys (US)                              17,610,937
Lexmark International Group
   (Class A) (US)                          17,484,375
Maxim Integrated Products (US)             17,293,281
Network Associates (US)                    17,046,993
ECI Telecommunications (Israel)            16,625,000
Microsoft (US)                             15,885,938
The Learning Company (US)                  15,487,500
Electronic Arts (US)                       14,350,000
VeecoInstruments (US)                      11,912,500


                                       53


<PAGE>

PERFORMANCE AND PORTFOLIO OVERVIEW
Seligman Henderson Global Technology Fund

INVESTMENT RESULTS PER SHARE

TOTAL RETURNS
FOR PERIODS ENDED OCTOBER 31, 1998

 <TABLE>
<CAPTION>
                                                                          AVERAGE ANNUAL
                                                              -------------------------------------
                                                                                           CLASS B
                                                                             SINCE          SINCE
                                                SIX             ONE        INCEPTION      INCEPTION
                                               MONTHS*         YEAR         5/23/94        4/22/96
                                             ----------       -------    ------------  ------------
CLASS A**
<S>                                            <C>             <C>           <C>           <C>
With Sales Charge                              (18.24)%        (5.53)%       18.93%          n/a
Without Sales Charge                           (14.16)         (0.79)        20.25           n/a
CLASS B**
With CDSC+                                     (18.72)         (5.62)          n/a          8.69%
Without CDSC                                   (14.54)         (1.55)          n/a          9.73
CLASS D**
With 1% CDSC                                   (15.40)         (2.51)          n/a           n/a
Without CDSC                                   (14.56)         (1.70)        19.25           n/a
Lipper Global Funds Average***                  (9.83)          5.31         10.74++        9.68(0)
LIPPER SCIENCE &
  TECHNOLOGY FUNDS AVERAGE***                   (4.74)         11.10         24.02++       14.64(0)
MSCI WORLD INDEX***                             (2.85)         15.69         14.65+++      14.23(0)

NET ASSET VALUE
</TABLE>
                 OCTOBER 31, 1998      APRIL 30, 1998        OCTOBER 31, 1997
                ------------------     ---------------      ------------------
CLASS A               $12.48               $14.83                $15.14
CLASS B                11.98                14.31                 14.73
CLASS D                11.96                14.29                 14.73

CAPITAL GAIN INFORMATION
FOR THE YEAR ENDED OCTOBER 31, 1998

PAID                   $2.586
REALIZED                0.802
UNREALIZED              1.070(00)


     Performance  data  quoted  represent  changes in prices and assume that all
distributions within the periods are invested in additional shares. The rates of
return  will  vary and the  principal  value of an  investment  will  fluctuate.
Shares, if redeemed, may be worth more or less than their original cost.


- ------------------

*    Returns for periods of less than one year are not annualized.

**   Return  figures  reflect any change in price and assume the  investment  of
     dividends  and capital gain  distributions.  Returns for Class A shares are
     calculated  with and without the effect of the initial  4.75% maximum sales
     charge.  Returns  for Class B shares are  calculated  with and  without the
     effect of the maximum 5% contingent deferred sales charge  ("CDSC"),charged
     on redemptions  made within one year of the date of purchase,  declining to
     1% in the sixth  year and 0%  thereafter.  Returns  for Class D shares  are
     calculated  with  and  without  the  effect  of the  1%  CDSC,  charged  on
     redemptions made within one year of the date of purchase.

***  The Lipper  Global Funds  Average,  the Lipper  Science & Technology  Funds
     Average,  and the Morgan Stanley  Capital  International  World Index (MSCI
     World  Index)  are  unmanaged   benchmarks  that  assume   reinvestment  of
     dividends.  The  Lipper  Global  Funds  Average  and the  Lipper  Science &
     Technology  Funds Average  exclude the effect of sales charges and the MSCI
     World  Index  excludes  the effect of fees and sales  charges.  The monthly
     performances  of the Lipper Global Funds  Average and the Lipper  Science &
     Technology  Funds  Average  are  used  in  the  Performance  and  Portfolio
     Overview. Investors cannot invest directly in an average or an index.

+    The CDSC is 5% for periods of one year or less, and 3% since inception.

++   From May 26, 1994.

+++  From May 31, 1994.

0    From April 30, 1996.

00   Represents the per share amount of net unrealized appreciation of portfolio
     securities as of October 31, 1998.

                                       54

<PAGE>

PERFORMANCE AND PORTFOLIO OVERVIEW

Seligman Henderson Global Technology Fund

     This chart  compares a $10,000  hypothetical  investment  made in  Seligman
Henderson  Global  Technology  Fund,  with and without the initial 4.75% maximum
sales charge for Class A shares,  and without the 1% contingent  deferred  sales
charge  ("CDSC")  for Class D shares,  and assumes  that all  distributions  are
invested in additional  shares,  since the commencement of operations on May 23,
1994, through October 31, 1998, to a $10,000 hypothetical investment made in the
Lipper Global Funds Average,  the Lipper Science &Technology Funds Average,  and
the Morgan Stanley Capital  International World Index (MSCI World Index) for the
same period.  It is important to keep in mind that indices and averages  exclude
the effect of fees and/or sales charges.

     There are specific risks associated with global investing, such as currency
fluctuations,  foreign taxation,  differences in financial reporting  practices,
and rapid changes in political and economic conditions.

     As shown on page 54, the performance of Class B shares will be greater than
or less than the performances shown for Class A shares and Class D shares, based
on the  differences  in  sales  charges  and  fees  paid by  shareholders.  Past
performance is not indicative of future investment results.

Class A With Sales Load
Class A Without Sales Load
Class D Without CDSL
MSCI World Index
Lipper Global Funds Avg.
Lipper Sci. & Tech Fds. Avg.


5/23/94  9520     10000    10000    10000   10000    10000

7/31/94  9613     10098    10084    10165   10089    9874


10/31/94 11160    11723    11681    10491   10425    11759


1/31/95  10695    11234    11150    9987    9604     11377


4/30/95  13264    13933    13821    10997   10332    13185


7/31/95  16856    17706    17523    11649   11303    16641


10/31/95 17556    18441    18216    11543   11158    17245


1/31/96  15895    16697    16458    12522   11880    16436


4/30/96  17535    18419    18119    13116   12621    18456


7/31/96  15004    15760    15477    12734   12200    16172


10/31/96 16269    17090    16745    13486   12898    18920


1/31/97  19981    20988    20535    14189   13838    21533


4/30/97  18571    19507    19055    14536   13827    18908


7/31/97  23634    24826    24204    16957   16031    24437


10/31/97 21779    22877    22241    15813   15089    23391


1/31/98  21113    22178    21506    16750   15464    23009


4/30/98  25170    26439    25588    18829   17603    27281


7/31/98  23753    24951    24093    19012   17334    26628


10/31/98 21606    22696    21863    18293   15884    25987



LARGEST PORTFOLIO CHANGES
During the Six Months Ended October 31, 1998

                                            SHARES
                                  -------------------------
                                                 HOLDINGS
ADDITIONS                          INCREASE      10/31/98
- -----------                       -----------   -----------
Autodesk (US) ..................    200,000      300,000
Canon (Japan) ..................    300,000      300,000
DIIGroup (US) ..................    400,000      400,000
Koninklijke (Royal) Philips
   Electronics (Netherlands) ...    100,000      100,000
The Learning Company
   (US) ........................    600,000      600,000
Microsoft (US) .................    150,000      150,000
Novartis (Switzerland) .........      6,000        6,000
Platinum Technology
   (US) ........................    400,000      400,000
SCISystems (US) ................    200,000      200,000
WM-Data (Series B)
   (Sweden) ....................    176,900      176,900



                                           SHARES
                                  -------------------------
                                                 HOLDINGS
REDUCTIONS                         DECREASE      10/31/98
- -------------                     -----------   -----------
AlcatelAlsthom (France)              63,000           --
America Online (US)                 190,000           --
American Power
   Conversion (US)                  275,000           --
COLT Telecom
   Group (UK)                     1,558,200(1)   480,000
Kulicke &Soffa
   Industries (US)                  600,000           --
LHS Group (Germany)                 135,000(2)        --
Logica (UK)                         349,000      201,000
Novellus Systems (US)               450,000           --
Storage Technology (US)             100,000       300,000(3)
Vodafone (UK)                       700,000       500,000

Largest  portfolio  changes from the previous  period to the current  period are
based on cost of purchases and proceeds from sales of securities.

- ------------------
(1)  Includes 1,367,400 shares received as a result of a 4-for-1 stock split.

(2)  Includes 50,000 shares received as a result of a 2-for-1 stock split.

(3)  Includes 150,000 shares received as a result of a 2-for-1 stock split.


                                       55

<PAGE>

PORTFOLIO OF INVESTMENTS
OCTOBER 31, 1998
Seligman Henderson Global Technology Fund

                                             SHARES          VALUE
                                           -----------    ------------
COMMON STOCKS  93.95%
AUSTRALIA  1.16%
COCHLEAR
   Developer and marketer
   of hearing aids (Medical
   Products and Technology)                 1,650,000        $ 8,352,625
                                                        ----------------
CANADA  0.30%
PMC-SIERRA*
   Provider of high-speed
   networking circuits
   (Semiconductors)                            48,400          2,174,975
                                                        ----------------
FINLAND  1.09%
NOKIA (SERIES A)
   Developer and manufacturer
   of cellular systems
   and equipment
   (Telecommunications)                        86,000          7,838,386
                                                        ----------------
FRANCE  3.85%
ALTRAN TECHNOLOGIES
   Provider of computer services
   (Computer and
   Business Services)                          33,000          6,465,573
AXIME
   Provider of banking and financial
   services, emphasizing database
   development, communication
   networks, and integrated
   trading systems (Computer and
   Business Services)                          24,500          4,627,974
RH(TM)NE-POULENC (SERIES A)
   Manufacturer of chemicals,
   polymers, fibers, pharmaceuticals,
   and agricultural chemicals
   (Medical Products and
   Technology)                                210,000          9,614,275
STMICROELECTRONICS*
   Manufacturer of semiconductor
   circuits for the automotive,
   computer, and
   telecommunication industries
    (Electronics)                              25,000          1,520,306
UNILOG
   Computer consultants
   (Computer and
   Business Services)                          15,300          5,432,769
                                                        ----------------
                                                              27,660,897
                                                        ----------------
Germany  1.56%
MANNESMANN
   Manufacturer of plant and
   machinery equipment;
   automotive optical inspection
   systems (Machinery and
   Equipment)                                 115,400      $  11,191,149
SIEMENS
   Worldwide manufacturer of
   automotive electronics,
   locomotives, electrical power
   plants, and traffic control systems
   (Machinery and Equipment)                      445             27,066
                                                        ----------------
                                                              11,218,215
                                                        ----------------
ISRAEL  5.56%
CHECK POINT SOFTWARE TECHNOLOGIES*
   Provider of network "firewall"
    security systems
   (Computer Software)                        200,000          4,556,250
ECI TELECOMMUNICATIONS
   Provider of digital
   telecommunication and
   data transmission systems
   (Networking/Communications
   Infrastructure)                            500,000         16,625,000
ORBOTECH*
   Manufacturer of automated
   optical inspection systems
   for circuit boards and
   flat panel displays
   (Electronics)                              330,000         11,488,125
TECNOMATIX TECHNOLOGIES*++
   Developer and retailer of
   computer-aided production
   engineering software
   (Computer Software)                        500,000          7,250,000
                                                        ----------------
                                                              39,919,375
                                                        ----------------
ITALY  1.10%
TELECOM ITALIA
   Provider of telecom-
   munication services
   (Telecommunications)                     1,092,933          7,911,580
                                                        ----------------


- ----------------
See footnotes on page 62.
                                       56

<PAGE>


PORTFOLIO OF INVESTMENTS
OCTOBER 31, 1998
Seligman Henderson Global Technology Fund

                                             SHARES          VALUE
                                           -----------    ------------
JAPAN  4.56%
CANON
   Manufacturer of printers and
   photocopiers (Electronics)                 300,000     $    5,686,654
HIROSE ELECTRONICS
   Manufacturer of specialized
   connectors (Electronics)                    60,800          3,528,046
MIMASU SEMICONDUCTOR
   Wafer inspection devices
   (Electronics Capital Equipment)            180,000          2,011,605
MURATA MANUFACTURING
MANUFACTURER OF CAPACITORS
(ELECTRONICS)                                 125,000          4,223,082
RICOH
   Manufacturer of office
   equipment (Machinery and
   Equipment)                                 310,000          2,624,973
ROHM
   Producer of custom
   linear integrated circuits
   (Semiconductors)                            37,000          3,276,166
SECOM
   Security services pioneer
   (Computer and
   Business Services)                         109,000          8,105,308
SHARP
   Manufacturer of electronics
   (Electronics)                              435,000          3,290,780
                                                        ----------------
                                                              32,746,614
                                                        ----------------
LUXEMBOURG  1.18%
MILLICOM INTERNATIONAL CELLULAR*
   Cellular services operator
   (Telecommunications)                        50,000          1,662,500
SCANDINAVIAN BROADCASTING SYSTEM*
   Radio and television
   broadcasting company
   (Media)                                    240,000          5,550,000
UNITED CUSTOMER MANAGEMENT
   SOLUTIONS
   Provider of services for the
   telecommunication industry
   (Telecommunications)                         7,600          1,238,800
                                                        ----------------
                                                               8,451,300
                                                        ----------------
NETHERLANDS  1.86%
CMG
   Information technology
   consulting (Computer and
   Business Services)                         346,100     $    8,050,857
KONINKLIJKE (ROYAL)
   PHILIPS ELECTRONICS
   Manufacturer of consumer
   and industrial electronics
   (Electronics)                              100,000          5,326,617
                                                        ----------------
                                                              13,377,474
                                                        ----------------
SINGAPORE  2.44%
CREATIVE TECHNOLOGIES
   Provider of PCaudio products
   (Computer Hardware/
   Peripherals)                               500,000          7,046,876
  VENTURE MANUFACTURING
   Contract manufacturer
   for the electronics industry
   (Electronics)                            3,143,000         10,454,081
                                                        ----------------
                                                              17,500,957
                                                        ----------------
SOUTH KOREA  0.14%
SAMSUNG ELECTRONICS (GDRS)
   (1U2 NON-VOTING)*+
   Manufacturer of consumer
   electronics and semiconductors
   (Semiconductors)                            60,000            528,000
SK TELECOM GROUP (ADRS)
   Provider of mobile
   telecommunication and
   paging services
   (Telecommunications)                        50,000            515,625
                                                        ----------------
                                                               1,043,625
                                                        ----------------
SWEDEN  2.39%
L.M. ERICSSON TELEFON (ADRS)
   Manufacturer of
   telecommunication
   equipment (Networking/
   Communications Infrastructure)             100,000          2,239,844
L.M. ERICSSON TELEFON (SERIES B)
   Manufacturer of
   telecommunication
   equipment (Networking/
   Communications
   Infrastructure)                            148,950          3,363,295


- ----------------
See footnotes on page 62.
                                       57

<PAGE>


PORTFOLIO OF INVESTMENTS
OCTOBER 31, 1998
Seligman Henderson Global Technology Fund

                                             SHARES          VALUE
                                           -----------    ------------

SWEDEN (CONTINUED)
PHARMACIA & UPJOHN
   Global pharmaceutical and
   biotechnology company
   (Medical Products and
   Technology)                                100,000     $    5,118,994
WM-DATA (SERIES B)
   Provider of systems design and
   development services for the
   computer industry (Computers
   and Business Services)                     176,900          6,445,519
                                                        ----------------
                                                              17,167,652
                                                        ----------------
SWITZERLAND  1.51%
NOVARTIS
   Manufacturer of
   pharmaceuticals (Medical
   Products and Technology)                     6,000         10,834,012
                                                        ----------------
TAIWAN  1.92%
  ACCTON TECHNOLOGY (GDRS)
   Distributor of electronic
   components (Distribution)                  599,109          1,725,434
SILICONWARE PRECISION
   INDUSTRIES (GDRS)*
   Integrated circuit packaging
   (Electronics Capital
   Equipment)                                 542,780          5,753,468
SYNNEX TECHNOLOGY
   INTERNATIONAL (GDRS)*
   Manufacturer of PCs and
   peripherals (Computer
   Hardware/Peripherals)                      287,968          4,356,956
YAGEO (GDRS)*
   Manufacturer of passive
   components (Electronics)                   291,228          1,915,319
YAGEO (GDRS)*+
   Manufacturer of passive
   components (Electronics)                     8,372             55,060
                                                        ----------------
                                                              13,806,237
                                                        ----------------
UNITED KINGDOM  10.87%
ACORN GROUP*
   Supplier of information
   technology (Computer
   Hardware/Peripherals)                      535,800            596,280
UNITED KINGDOM (CONTINUED)
ADMIRAL
   Computer software and
   services (Computer and
   Business Services)                         530,100        $ 8,560,731
ANITE GROUP*
   Supplier of data communication
   and software products
   (Networking/Communications
   Infrastructure)                            400,000            354,782
BTG
   Technology transfer
   company assisting in the
   commercialization of
   technological inventions
   (Computer and
   Business Services)                         585,000          3,255,167
CABLE & WIRELESS
   Provider of telecommunication
   services (Telecommunications)              424,000          4,778,914
CELLTECH*
   Pharmaceutical company
   active in the development
   and research of new
   therapeutic products
   (Medical Products and
   Technology)                                176,600          1,078,721
COLT TELECOM GROUP*
   Provider of telecommunication
   services (Telecommunications)              480,000          6,072,797
CRT GROUP
   Provider of training and
   recruitment services;
   publisher of multimedia
   products (Computer and
   Business Services)                         900,000          2,583,047
DRUID
   Provider of consulting services
   for information technology
   management (Computer and
   Business Services)                         237,500          3,885,135
EIDOS*
   Developer of entertainment
   software (Computer Software)               242,000          3,361,392
GENERAL ELECTRIC
   Supplier of diversified
   electronics (Electronics)                1,035,000          8,270,646


- ----------------
See footnotes on page 62.
                                       58

<PAGE>


PORTFOLIO OF INVESTMENTS
OCTOBER 31, 1998
Seligman Henderson Global Technology Fund

                                             SHARES          VALUE
                                           -----------    ------------
UNITED KINGDOM (CONTINUED)
ILION GROUP++
   Networking equipment
   distributor (Distribution)               1,616,914        $ 1,447,659
LINX PRINTING TECHNOLOGIES++
   Manufacturer of specialized
   printers (Miscellaneous)                   570,000          1,096,979
LOGICA
   Supplier of computer
   services (Computer
   and Business Services)                     201,000          6,786,335
MISYS
   Provider of computer
   services, and software
   and hardware solutions
   (Computer Software)                        601,700          4,198,960
PREMIER FARNELL
   Distributor of electronic
   components (Distribution)                  475,000          1,331,478
PSION
   Manufacturer of hand-held
   computers (Computer
   Hardware/Peripherals)                      527,900          4,408,369
RM
   Supplier of integrated
   information technology
   solutions to educational
   markets (Networking/
   Communication
   Infrastructure)                          1,400,000          8,375,868
TOROTRAK*
   Designer and developer of
   automobile transmission
   systems (Machinery and
   Equipment)                                 585,000            993,682
VODAFONE
   Cellular services operator
   (Telecommunications)                       500,000          6,673,081
                                                        ----------------
                                                              78,110,023
                                                        ----------------
UNITED STATES  52.46%
3DO*
   Developer of entertainment
   software (Computer Software)               400,000        1,262,500
ACTIVISION*
   Developer of entertainment
   software (Computer Software)               253,400          2,700,294
UNITED STATES (CONTINUED)
  AMDOCS*
   Provider of software solutions
   for the telecommunication
   industry (Computer Software)               200,000     $    2,600,000
AMKOR TECHNOLOGY*
   Provider of semiconductor
   packaging and test services
   (Semiconductors)                         1,000,000          4,890,625
APEX PC SOLUTIONS*
   Developer and marketer of
   switching systems for computer
   network administrators
   (Computer Hardware/
   Peripherals)                               250,000          6,515,625
AUTODESK
   Developer of software for
   architectural and mechanical
   design, data management,
   and mapping (Computer
   Software)                                  300,000          9,403,125
C-CUBE MICROSYSTEMS*
   Provider of digital video
   compression and
   decompression circuits and
   systems (Semiconductors)                   278,100          5,005,800
CADENCE DESIGN SYSTEM*
   Manufacturer of electronic
   design automation software
   (Computer Software)                        400,000          8,550,000
CHS ELECTRONICS*
   Distributor of personal
   computers, networking
   products, and software
   (Electronics)                              300,000          2,925,000
CMP MEDIA (CLASS A)*++
   Technology-oriented magazine
   and newspaper publisher
   (Media)                                    800,000          7,800,000
COGNEX*
   Manufacturer of machine
   vision systems (Electronics
   Capital  Equipment)                        300,000          4,659,375
CREDENCE SYSTEMS*
   Manufacturer of automated
   semiconductor test
   equipment (Electronics
   Capital Equipment)                         215,000          3,211,562


- ----------------
See footnotes on page 62.
                                       59

<PAGE>


PORTFOLIO OF INVESTMENTS
OCTOBER 31, 1998
Seligman Henderson Global Technology Fund

                                             SHARES          VALUE
                                           -----------    ------------
UNITED STATES (CONTINUED)
DALLAS SEMICONDUCTOR
   Manufacturer of mixed signal
   integrated circuits
   (Semiconductors)                           150,000     $    5,550,000
DATA GENERAL*
   Provider of computer systems
   such as servers and storage
   devices (Computer
   Hardware/Peripherals)                       60,000          1,020,000
DII GROUP*
   Provider of contract
   manufacturing services
   (Contract Manufacturing/
   Circuit Boards)                            400,000          5,875,000
DSP COMMUNICATIONS
   Developer of chipsets used in
   wireless communication
   handsets (Networking/
   Communications Infrastructure)             300,000          2,943,750
ECHELON*
   Provider of software products
   and services used in the design
   of computer networks
   (Computer Software)                        600,000          1,556,250
ELECTRO SCIENTIFIC INDUSTRIES*
MANUFACTURER OF MEMORY CIRCUIT
REPAIR SYSTEMS (ELECTRONICS
CAPITAL EQUIPMENT)                            100,000          2,506,250
ELECTRONIC ARTS*
   Developer of entertainment
   software (Computer Software)               350,000         14,350,000
ELECTRONICS FOR IMAGING*
   Manufacturer of peripherals for
   color printers and copiers
   (Computer Hardware/
   Peripherals)                               300,000          7,228,125
EMC*
   Manufacturer of enterprise
   storage devices (Computer
   Hardware/Peripherals)                      500,000         32,187,500
UNITED STATES (CONTINUED)
FIRST DATA
   Information processor of credit
   and debit card, check, wire, and
   Internet transactions (Computer
   and Business Services)                     150,000       $  3,975,000
FLEXTRONICS INTERNATIONAL*
   Contract manufacturer of
   electronic components
   (Contract Manufacturing/
   Circuit Boards)                            100,000          5,196,875
GENESYS TELECOMMUNICATIONS
   LABORATORIES*
   Provider of software for
   integrating computer resources
   with telephony and
   telecommunication media
   (Computer Software)                        250,000          6,593,750
HADCO*
   Manufacturer of complex
   printed circuit boards
   (Contract Manufacturing/
   Circuit Boards)                             89,700          2,808,731
HNC SOFTWARE*
   Developer and vendor of
   software for mission-critical
   decision applications
   (Computer Software)                        300,000         10,087,500
JABIL CIRCUIT*
   Contract manufacturer of
   electronic components
   (Contract Manufacturing/
   Circuit Boards)                            100,000          4,631,250
KLA-TENCOR*
   Manufacturer of wafer inspection
   and metrology equipment
   (Electronics Capital
   Equipment)                                 240,600          8,879,644
LATTICE SEMICONDUCTOR*
   Designer and manufacturer of
   programmable logic devices
   (Semiconductors)                           150,000          5,109,375


- ----------------
See footnotes on page 62.
                                       60

<PAGE>


PORTFOLIO OF INVESTMENTS
OCTOBER 31, 1998
Seligman Henderson Global Technology Fund

                                             SHARES          VALUE
                                           -----------    ------------
UNITED STATES (CONTINUED)
THE LEARNING COMPANY*
   Developer of education and
   reference software for
   the PC (Computer Software)                 600,000       $ 15,487,500
LEVEL ONE COMMUNICATIONS*
   Developer of silicon
   connectivity solutions used in
   high-speed communication
   applications (Semiconductors)              175,000          4,610,156
LEXMARK INTERNATIONAL GROUP
(CLASS A)*
   Manufacturer of laser and
   inkjet printers and cartridges
   (Computer Hardware/
   Peripherals)                               250,000         17,484,375
MAXIM INTEGRATED PRODUCTS*
MANUFACTURER OF LINEAR AND
MIXED-SIGNAL INTEGRATED
CIRCUITS (SEMICONDUCTORS)                     485,000         17,293,281
MICROCHIP TECHNOLOGY*
   Supplier of field programmable
   microcontrollers
   (Semiconductors)                           362,500          9,832,812
MICROSOFT*
   Provider of computer software
   products (Computer Software)               150,000         15,885,938
NEOMAGIC*
   Developer of graphics circuits
   for notebook computers
   (Semiconductors)                           300,000          5,034,375
NETWORK ASSOCIATES*
   Supplier of network security
   and anti-virus utilities
   (Computer Software)                        400,811         17,046,993
NTL*
   Provider of cable television,
   Internet access, and telephone
   services (Telecommunications)               45,000          2,157,188
PACIFIC GATEWAY EXCHANGE*
   International telecommunication
   carrier (Telecommunications)                75,000          2,175,000
PARAMETRIC TECHNOLOGY*
   Developer of mechanical
   design software
   (Computer Software)                        400,000          6,662,500
UNITED STATES (CONTINUED)
PLATINUM TECHNOLOGY*
   Provider of systems
   management software
   (Computer Software)                        400,000     $    6,550,000
RENAISSANCE WORLDWIDE*
   Provider of information
   technology consulting and
   services (Computer and
   Business Services)                          58,000            546,469
SCI SYSTEMS*
   Manufacturer of electronic
   components (Contract
   Manufacturing/Circuit Boards)              200,000          7,900,000
SMART MODULAR TECHNOLOGY*
   Assembler of memory modules
   (Contract Manufacturing/
   Circuit Boards)                            211,700          4,425,853
SPLASH TECHNOLOGY*
   Manufacturer of peripherals
   for color printers and
   copiers (Computer
   Hardware/Peripherals)                      200,000          1,712,500
STORAGE TECHNOLOGY*
   Designer and manufacturer
   of tape- and disk-based
   data storage equipment
   (Computer Hardware/
   Peripherals)                               300,000         10,031,250
STRUCTURAL DYNAMICS RESEARCH*
   Developer of mechanical
   design software
   (Computer Software)                        400,000          5,800,000
SYNOPSYS*
   Developer of integrated
   circuit design software
   (Computer Software)                        390,000         17,610,937
TELE-COMMUNICATIONS*
INVESTMENT COMPANY
WHICH HAS STAKES IN
INTERNATIONAL CABLE, INTERNET,
AND TELEPHONE VENTURES
(TELECOMMUNICATIONS)                          100,000          4,206,250


- ----------------
See footnotes on page 62.
                                       61

<PAGE>


PORTFOLIO OF INVESTMENTS
OCTOBER 31, 1998
Seligman Henderson Global Technology Fund

                                             SHARES          VALUE
                                           -----------    ------------
UNITED STATES (CONTINUED)
TELE-COMMUNICATIONS (SERIES A)
   TCI VENTURES GROUP*
   Investment company
   which has stakes in
   international cable, Internet,
   and telephone ventures
   (Telecommunications)                       200,000        $ 3,718,750
TERADYNE*
   Manufacturer of semiconductor
   test equipment (Electronics
   Capital Equipment)                         150,000          4,875,000
VEECO INSTRUMENTS*
   Ion beam etching and surface
   measurement systems for disk
   drive heads (Electronics
   Capital Equipment)                         400,000         11,912,500
UNITED STATES (CONTINUED)
ZIFF-DAVIS*
   Integrated media and
   marketing company focused
   on computer and
   Internet-related technology
   (Media)                                    600,000        $ 3,975,000
                                                        ----------------
                                                             376,957,533
                                                        ----------------
TOTAL INVESTMENTS  93.95%
  (Cost $612,547,701)                                        675,071,480
OTHER ASSETS
  LESS LIABILITIES  6.05%                                     43,486,986
                                                        ----------------
NET ASSETS  100.00%                                         $718,558,466
                                                        ================

- ---------------------

*    Non-income producing security.

+    Rule 144A security.

++   Affiliated  issuers  (a  Series'  holdings  representing  5% or more of the
     outstanding voting securities).

Descriptions  of  companies  have not been audited by Deloitte & Touche LLP. See
Notes to Financial Statements.

                                       62


<PAGE>

STATEMENTS OF ASSETS AND LIABILITIES
OCTOBER 31, 1998

<TABLE>
<CAPTION>

                                                                        EMERGING          GLOBAL         GLOBAL
                                                                         MARKETS          GROWTH         SMALLER       GLOBAL
                                                       INTERNATIONAL     GROWTH        OPPORTUNITIES    COMPANIES    TECHNOLOGY
                                                            FUND           FUND            FUND           FUND          FUND
                                                       -------------    ---------      -------------    ---------    ----------
ASSETS:
Investments, at value (see portfolios of investments):
<S>                                                      <C>           <C>              <C>                <C>            <C>
   Common stocks*                                        $84,360,125   $50,799,845      $170,215,581   $779,737,667   $675,071,480
   Preferred stocks                                               --            --                --      5,579,390             --
   Bonds                                                     258,994       113,255           151,485      1,796,709             --
   Short-Term Holdings                                            --            --                --     10,000,000             --
                                                        ------------  ------------     -------------   ------------   ------------
Total investments                                         84,619,119    50,913,100       170,367,066    797,113,766    675,071,480
Cash                                                      10,246,667     5,058,919        12,228,659     51,709,455     99,703,592
Receivable for securities sold                             3,888,299       950,839         4,922,023      9,213,807    123,892,223
Receivable for dividends and interest                        221,478        83,462           414,492      2,976,010        638,928
Unrealized appreciation on forward
  currency contracts                                         169,261           227           511,396      1,516,570          2,699
Receivable for Capital Stock sold                            106,422       194,064           200,548     36,843,752        461,053
Expenses prepaid to shareholder service agent                 41,369        46,146            81,755        390,098        340,556
Other                                                          8,337         1,360            11,487         13,951         11,946
                                                        ------------  ------------     -------------   ------------   ------------
TOTAL ASSETS                                              99,300,952    57,248,117       188,737,426    899,777,409    900,122,477
                                                        ------------  ------------     -------------   ------------   ------------
LIABILITIES:
Payable for securities purchased                           6,199,043     2,881,200         1,494,232     15,364,349    172,405,446
Unrealized depreciation on forward
  currency contracts                                       1,095,511           229         1,938,502      8,607,015      3,024,358
Payable for Capital Stock repurchased                        337,880       212,650           620,470      3,720,961      4,782,592
Accrued expenses, taxes, and other                           227,186       161,773           363,850      1,707,230      1,351,615
                                                        ------------  ------------     -------------   ------------   ------------
TOTAL LIABILITIES                                          7,859,620     3,255,852         4,417,054     29,399,555    181,564,011
                                                        ------------  ------------     -------------   ------------   ------------
NET ASSETS                                               $91,441,332   $53,992,265      $184,320,372   $870,377,854   $718,558,466
                                                        ============  ============     =============   ============   ============
COMPOSITION OF NET ASSETS:
Capital Stock, at par:
   Class A                                                  $  2,485      $  4,689         $  10,177   $     26,572     $   38,147
   Class B                                                       581         3,151             2,334         16,531          4,889
   Class D                                                     2,215         2,683             6,857         20,273         15,383
Additional paid-in capital                                76,821,391    81,760,173       137,061,431    860,146,972    658,974,176
Accumulated net investment loss                              (12,108)       (1,573)           (3,088)       (11,300)        (7,955)
Undistributed/accumulated net realized gain                                           
  (loss) on investments                                      955,012   (22,888,498)          387,169    (18,059,913)            --
Net unrealized appreciation (depreciation)                                            
  of investments                                          11,559,751    (2,995,488)       46,926,669     30,703,189     62,135,589
Net unrealized appreciation (depreciation) on                                         
  translation of assets and liabilities denominated in                                
  foreign currencies and forward currency contracts        2,112,005    (1,892,872)          (71,177)    (2,464,470)    (2,601,763)
                                                        ------------  ------------     -------------   ------------   ------------
Net Assets                                               $91,441,332   $53,992,265      $184,320,372   $870,377,854   $718,558,466
                                                        ============  ============     =============   ============   ============
NET ASSETS:                                                                           
   Class A                                               $44,121,550   $24,293,781      $ 97,947,090   $374,889,859   $475,951,535
   Class B                                               $ 9,834,634   $16,031,000      $ 21,930,546   $222,495,651   $ 58,575,177
   Class D                                               $37,485,148   $13,667,484      $ 64,442,736   $272,992,344   $184,031,754
SHARES OF CAPITAL STOCK OUTSTANDING:                                                  
   Class A                                                 2,485,160     4,688,726        10,177,460     26,572,416     38,147,171
   Class B                                                   580,881     3,150,752         2,333,634     16,530,974      4,889,211
   Class D                                                 2,214,767     2,683,562         6,856,670     20,272,979     15,382,625
NET ASSET VALUE PER SHARE:                                                            
   Class A                                                    $17.75         $5.18             $9.62         $14.11         $12.48
   Class B                                                    $16.93         $5.09             $9.40         $13.46         $11.98
   Class D                                                    $16.93         $5.09             $9.40         $13.47         $11.96
</TABLE>                                                                   


- ---------------
* Includes affiliated issuers (issuers in which a Series' holdings  representing
5% or more of the outstanding  voting  securities)  with cost of $14,649,952 and
$32,880,883,  and value of $17,230,342 and  $17,594,638,  respectively,  for the
Global  Smaller  Companies  Fund and the Global  Technology  Fund.  See Notes to
Financial Statements.


                                       63

<PAGE>

STATEMENTS OF OPERATIONS
For the Year Ended October 31, 1998

<TABLE>
<CAPTION>
                                                         EMERGING                         GLOBAL       GLOBAL
                                                          MARKETS        GLOBAL           GROWTH       SMALLER
                                                       INTERNATIONAL     GROWTH        OPPORTUNITIES  COMPANIES    TECHNOLOGY
                                                            FUND           FUND            FUND         FUND          FUND
                                                       -------------    ---------      ------------- ---------    ----------
INVESTMENT INCOME:
<S>                                                      <C>           <C>           <C>            <C>            <C>
Dividends*                                               $1,617,890    $ 1,293,774   $ 2,110,427    $10,598,335    $3,025,877
Interest                                                    189,181        440,815       266,884      1,327,988     2,171,660
                                                       ------------   ------------   -----------    -----------    ----------
Total Investment Income**                                 1,807,071      1,734,589     2,377,311     11,926,323     5,197,537
                                                       ------------   ------------   -----------    -----------    ----------
EXPENSES:
Management fees                                             954,634      1,034,015     1,982,193      9,995,944     8,247,297
Distribution and service fees                               590,772        553,783     1,151,017      6,917,745     4,116,934
Shareholder account services                                226,490        311,815       501,782      2,563,167     2,184,002
Custody and related services                                121,639        118,489       147,188        687,842       452,718
Registration                                                 67,351         59,269        58,836        115,240       126,018
Auditing and legal fees                                      53,425         56,583        53,654         55,432        55,023
Shareholder reports and communications                       40,295         39,960        85,258        526,267       611,333
Directors' fees and expenses                                 16,325         17,801        21,713         79,122        53,855
Miscellaneous                                                 6,270          5,996        10,647         37,152        30,873
                                                       ------------   ------------   -----------   ------------  ------------
Total Expenses                                            2,077,201      2,197,711     4,012,288     20,977,911    15,878,053
                                                       ------------   ------------   -----------   ------------  ------------
Net Investment Loss                                        (270,130)      (463,122)   (1,634,977)    (9,051,588)  (10,680,516)
                                                       ------------   ------------   -----------   ------------  ------------
NET REALIZED AND UNREALIZED GAIN
  (LOSS) ON INVESTMENTS AND FOREIGN
  CURRENCY TRANSACTIONS:
Net realized gain (loss) on investments***                2,327,950    (17,519,924)    2,512,281        142,339    47,415,066
Net realized loss from foreign currency
     transactions***                                       (700,001)    (2,152,860)   (2,270,172)   (16,429,116)     (858,280)
Net change in unrealized appreciation
     of investments                                       1,271,316     (5,035,191)   13,049,405    (51,038,110)  (44,894,952)
Net  change in unrealized  depreciation on
translation of assets and liabilities  denominated
in foreign currencies and forward
     currency contracts                                   2,794,538        370,569     3,910,046     19,214,602     5,026,539
                                                       ------------   ------------   -----------   ------------  ------------
Net Gain (Loss) on Investments and Foreign
  Currency Transactions                                   5,693,803    (24,337,406)   17,201,560    (48,110,285)    6,688,373
                                                       ------------   ------------   -----------   ------------  ------------
Increase (Decrease) in Net Assets
     from Operations                                     $5,423,673   $(24,800,528)  $15,566,583   $(57,161,873)  $(3,992,143)
                                                       ============   ============   ===========   ============   ===========

- ----------------

*   Includes dividend income from affiliated issuers
    as follows:                                                  --            --             --       $ 79,847            --

 ** Net of foreign taxes withheld as follows:              $169,723       $105,168      $165,219     $1,184,791        443,373

*** Includes net realized gain (loss) (including effect
    of foreign currency transactions) from affiliated
    issuers as follows:                                          --            --             --      4,380,273       (683,067)

See Notes to Financial Statements.
</TABLE>
Statements of Changes in Net Assets


                                       64

<PAGE>

<TABLE>
<CAPTION>
                                                                  INTERNATIONAL                      EMERGING
                                                                                                      MARKETS
                                                                      FUND                            GROWTH
                                                                                                       FUND
                                                        ------------------------------   --------------------------------
                                                             YEAR ENDED OCTOBER 31,           YEAR ENDED OCTOBER 31,
                                                        ------------------------------   --------------------------------
                                                             1998            1997              1998           1997
                                                        --------------   -------------   --------------    ----------
<S>                                                     <C>              <C>              <C>              <C>
OPERATIONS:
Net investment loss .................................   $    (270,130)   $    (634,722)   $    (463,122)       $(882,224)
Net realized gain (loss) on investments .............       2,327,950       12,612,987      (17,519,924)        (148,704)
Net realized loss from foreign currency transactions         (700,001)      (6,357,450)      (2,152,860)      (2,880,868)
Net change in unrealized appreciation/depreciation
     of investments .................................       1,271,316        1,745,746       (5,035,191)       2,540,710
Net change in unrealized depreciation on translation
     of assets and liabilities denominated in foreign
     currencies and forward currency contracts ......       2,794,538        1,928,031          370,569       (1,858,237)
                                                        -------------    -------------    -------------    -------------
INCREASE (DECREASE) IN NET ASSETS FROM OPERATIONS ...       5,423,673        9,294,592      (24,800,528)      (3,229,323)
                                                        -------------    -------------    -------------    -------------
DISTRIBUTIONS TO SHAREHOLDERS:
Net realized gain on investments:
  Class A ...........................................      (3,073,832)      (2,600,409)              --               --
  Class B ...........................................        (442,506)        (155,283               --               --
  Class D ...........................................      (2,927,252)      (2,512,690)              --               --
                                                        -------------    -------------    -------------    -------------
Decrease in Net Assets from Distributions ...........      (6,443,590)      (5,268,382)              --               --
                                                        -------------    -------------    -------------    -------------
CAPITAL SHARE TRANSACTIONS:
Net proceeds from sale of shares:
  Class A ...........................................      20,944,419        8,433,918        9,097,908       24,772,191
  Class B ...........................................       4,648,002        3,830,342        3,958,564       21,632,060
  Class D ...........................................       6,404,661        7,260,659        3,323,782       16,452,673
Exchanged from associated Funds:
  Class A ...........................................      51,542,834       42,509,534       19,937,244       32,454,783
  Class B ...........................................       5,569,000          546,088          477,703        3,193,456
  Class D ...........................................      31,181,338       17,279,201        2,593,655       18,323,632
Shares issued in payment of gain distributions:
  Class A ...........................................       2,644,650        1,907,643             --                 --
  Class B ...........................................         416,868          145,807             --                 --
  Class D ...........................................       2,517,142        2,266,472             --                 --
                                                        -------------    -------------    -------------    -------------
Total ...............................................     125,868,914       84,179,664       39,388,856      116,828,795
                                                        -------------    -------------    -------------    -------------
Cost of shares repurchased:
  Class A ...........................................     (24,740,448)     (16,889,634)     (12,803,905)     (12,525,580)
  Class B ...........................................        (999,582)        (285,808)      (4,804,465)      (2,633,033)
  Class D ...........................................      (9,945,313)     (13,972,244)      (6,863,680)      (4,107,703)
Exchanged into associated Funds:
  Class A ...........................................     (52,470,373)     (43,254,302)     (25,474,706)     (19,719,002)
  Class B ...........................................      (5,611,693)        (811,812)      (4,852,353)      (2,336,033)
  Class D ...........................................     (33,074,289)     (21,316,046)      (9,935,797)     (12,208,736)
                                                        -------------    -------------    -------------    -------------
Total ...............................................    (126,841,698)     (96,529,846)     (64,734,906)     (53,530,087)
                                                        -------------    -------------    -------------    -------------
INCREASE (DECREASE) IN NET ASSETS FROM
     CAPITAL SHARE TRANSACTIONS .....................        (972,784)     (12,350,182)     (25,346,050)      63,298,708
                                                                                          -------------    -------------
INCREASE (DECREASE) IN NET ASSETS ...................      (1,992,701)      (8,323,972)     (50,146,578)      60,069,385
NET ASSETS:
Beginning of year ...................................      93,434,033      101,758,005      104,138,843       44,069,458
                                                        -------------    -------------    -------------    -------------
END OF YEAR .........................................   $  91,441,332    $  93,434,033    $  53,992,265     $104,138,843
                                                        ==============   =============    =============    =============
</TABLE>


<TABLE>
<CAPTION>
                                                                 GLOBAL GROWTH
                                                               OPPORTUNITIES FUND
                                                         -----------------------------
                                                             YEAR ENDED OCTOBER 31,
                                                         ------------------------------
                                                               1998           1997
                                                          --------------  -------------
<S>                                                      <C>              <C>
OPERATIONS:
Net investment loss .................................    $  (1,634,977)   $  (1,712,413)
Net realized gain (loss) on investments .............        2,512,281       14,475,563
Net realized loss from foreign currency transactions        (2,270,172)      (5,288,647)
Net change in unrealized appreciation/depreciation
     of investments .................................       13,049,405       16,851,124
Net change in unrealized depreciation on translation
     of assets and liabilities denominated in foreign
     currencies and forward currency contracts ......        3,910,046       (1,171,623)
                                                         -------------    -------------
INCREASE (DECREASE) IN NET ASSETS FROM OPERATIONS ...       15,566,583       23,154,004
                                                         -------------    -------------
DISTRIBUTIONS TO SHAREHOLDERS:
Net realized gain on investments:
  Class A ...........................................       (4,861,075)              --
  Class B ...........................................         (875,292)              --
  Class D ...........................................       (2,900,851)              --
                                                         -------------    -------------
Decrease in Net Assets from Distributions ...........       (8,637,218)              --
                                                         -------------    -------------
CAPITAL SHARE TRANSACTIONS:
Net proceeds from sale of shares:
  Class A ...........................................        7,080,116       12,893,684
  Class B ...........................................        4,937,582        9,863,991
  Class D ...........................................        6,765,527       11,847,943
Exchanged from associated Funds:
  Class A ...........................................       29,284,180        4,188,658
  Class B ...........................................        3,543,331        1,014,306
  Class D ...........................................       12,674,214        5,672,140
Shares issued in payment of gain distributions:
  Class A ...........................................        4,427,520               --
  Class B ...........................................          752,541               --
  Class D ...........................................        2,635,591               --
                                                         -------------    -------------
Total ...............................................       72,100,602       45,480,722
                                                         -------------    -------------
Cost of shares repurchased:
  Class A ...........................................      (26,372,863)     (24,937,167)
  Class B ...........................................       (3,664,340)      (1,352,960)
  Class D ...........................................      (15,267,156)      (8,496,389)
Exchanged into associated Funds:
  Class A ...........................................      (30,358,305)      (5,055,701)
  Class B ...........................................       (3,263,092)        (980,251)
  Class D ...........................................       (8,455,082)      (5,447,579)
                                                         -------------    -------------
Total ...............................................      (87,380,838)     (46,270,047)
                                                         -------------    -------------
INCREASE (DECREASE) IN NET ASSETS FROM
     CAPITAL SHARE TRANSACTIONS .....................      (15,280,236)        (789,325)
                                                         -------------    -------------
INCREASE (DECREASE) IN NET ASSETS ...................       (8,350,871)      22,364,679
NET ASSETS:
Beginning of year ...................................      192,671,243      170,306,564
                                                         -------------    -------------
END OF YEAR .........................................    $ 184,320,372    $ 192,671,243
                                                         =============    =============
</TABLE>

- --------------
See Notes to Financial Statements.

                                       65

<PAGE>



STATEMENTS OF CHANGES IN NET ASSETS

<TABLE>
<CAPTION>
                                                                 GLOBAL SMALLER                        GLOBAL TECHNOLOGY
                                                                 COMPANIES FUND                               FUND
                                                        ------------------------------------  --------------------------------
                                                                YEAR ENDED OCTOBER 31,                YEAR ENDED OCTOBER 31,
                                                        ------------------------------------  --------------------------------
                                                              1998                1997                1998               1997
                                                        ----------------       -------------------------------------------------
<S>                                                     <C>                <C>                <C>                <C>
OPERATIONS:
Net investment loss .................................   $    (9,051,588)   $    (3,884,361)   $   (10,680,516)   $   (11,314,644)

Net realized gain on investments ....................           142,339         48,603,936         47,415,066        160,468,225

Net realized loss from foreign
     currency transactions ..........................       (16,429,116)        (7,015,314)          (858,280)        (2,395,338)

Net change in unrealized appreciation/depreciation
     of investments .................................       (51,038,110)        49,634,066        (44,894,952)        83,247,639

Net change in unrealized depreciation on translation
     of assets and liabilities denominated in foreign
     currencies and forward currency contracts ......        19,214,602        (18,276,737)         5,026,539         (1,868,340)
                                                        ---------------    ---------------    ---------------     --------------
Increase (Decrease) in Net Assets from
 Operations .........................................       (57,161,873)        69,061,590         (3,992,143)       228,137,542
                                                        ---------------    ---------------    ---------------     --------------
Distributions to Shareholders:
Net realized gain on investments:
  Class A ...........................................       (17,124,087)       (16,938,227)       (99,536,281)                --
  Class B ...........................................       (10,275,288)        (5,226,787)        (9,666,516)                --
  Class D ...........................................       (15,357,547)       (14,328,867)       (41,021,514)                --
                                                        ---------------    ---------------    ---------------    ---------------
Decrease in Net Assets from Distributions ...........       (42,756,922)       (36,493,881)      (150,224,311)                --
                                                        ---------------    ---------------    ---------------    ---------------
CAPITAL SHARE TRANSACTIONS:
Net proceeds from sale of shares:
  Class A ...........................................       152,853,507        161,210,830          56,563,795         53,544,965
  Class B ...........................................        43,401,281        160,923,469          15,204,426         30,651,040
  Class D ...........................................        39,263,963        129,977,455          15,269,385         27,634,257
Exchanged from associated Funds:
     Class A ........................................       230,629,818         38,707,367         198,014,893        131,077,214
  Class B ...........................................         5,918,063          8,353,794           4,387,134          7,378,122
  Class D ...........................................        42,068,010         22,459,122         121,982,389         31,456,056
Shares issued in payment of gain distributions:
  Class A ...........................................        15,984,486         15,752,220          93,006,394                 --
  Class B ...........................................         9,575,151          4,800,702           8,897,918                 --
  Class D ...........................................        14,283,328         13,378,106          38,405,363                 --
                                                        ---------------    ---------------     ---------------    ---------------
Total ...............................................      553, 977,607        555,563,065         551,731,697        281,741,654
                                                        ---------------    ---------------     ---------------    ---------------
Cost of shares repurchased:
  Class A ...........................................      (175,015,238)      (100,080,081)       (137,745,943)      (119,817,104)
  Class B ...........................................       (29,719,894)       (19,743,793)         (6,421,499)        (4,478,196)
  Class D ...........................................       (89,449,184)       (61,956,065)        (47,125,132)       (46,935,136)
Exchanged into associated Funds:
  Class A ...........................................      (247,200,113)       (46,909,181)       (216,262,283)      (141,838,011)
  Class B ...........................................       (26,278,385)       (17,273,307)         (5,472,802)        (6,449,635)
  Class D ...........................................       (68,639,834)       (29,350,663)       (135,114,189)       (37,285,917)
                                                        ---------------    ---------------     ---------------    ---------------
Total ...............................................      (636,302,648)      (275,313,090)       (548,141,848)      (356,803,999)
                                                        ---------------    ---------------     ---------------    ---------------
Increase (Decrease) in Net Assets from
  Capital Share Transactions ........................       (82,325,041)       280,249,975          3,589,849
                                                        ---------------    ---------------     ---------------    ---------------
Increase (Decrease) in Net Assets ...................      (182,243,836)       312,817,684        (150,626,605)       153,075,197
NET ASSETS:
Beginning of year ...................................     1,052,621,694        739,804,010         869,185,071        716,109,874
                                                        ---------------    ---------------     ---------------    ---------------
End of Year .........................................   $   870,377,858    $ 1,052,621,694     $   718,558,466    $   869,185,071
                                                        ===============    ===============    ===============     ===============
</TABLE>

- -----------
See Notes to Financial Statements.

                                       66

<PAGE>

NOTES TO FINANCIAL STATEMENTS

1.  MULTIPLE  CLASSES OF SHARES -- Seligman  Henderson Global Fund Series,  Inc.
(the "Fund") consists of five separate Series:  Seligman Henderson International
Fund (the "International Fund"), Seligman Henderson Emerging Markets Growth Fund
(the  "Emerging  Markets  Growth  Fund"),   Seligman   Henderson  Global  Growth
Opportunities Fund (the "Global Growth Opportunities Fund"),  Seligman Henderson
Global  Smaller  Companies  Fund (the  "Global  Smaller  Companies  Fund"),  and
Seligman Henderson Global Technology Fund (the "Global  Technology Fund").  Each
Series of the Fund offers three classes of shares.

Class A shares  are sold  with an  initial  sales  charge  of up to 4.75%  and a
continuing  service  fee of up to  0.25%  on an  annual  basis.  Class A  shares
purchased in an amount of  $1,000,000  or more are sold without an initial sales
charge but are subject to a contingent  deferred sales charge  ("CDSC") of 1% on
redemptions  within 18 months of  purchase.  Class B shares are sold  without an
initial  sales  charge  but are  subject  to a  distribution  fee of 0.75% and a
service fee of up to 0.25% on an annual basis, and a CDSC, if applicable,  of 5%
on redemptions in the first year of purchase,  declining to 1% in the sixth year
and 0% thereafter.  Class B shares will automatically  convert to Class A shares
on the last day of the month that precedes the eighth  anniversary of their date
of  purchase.  Class D shares are sold  without an initial  sales charge but are
subject to a distribution  fee of up to 0.75%,  and a service fee of up to 0.25%
on an annual basis, and a CDSC, if applicable, of 1% imposed on redemptions made
within  one year of  purchase.  The  three  classes  of shares  for each  Series
represent  interests in the same portfolio of investments,  have the same rights
and are  generally  identical in all  respects  except that each class bears its
separate distribution and certain other class expenses, and has exclusive voting
rights  with  respect  to any  matter on which a  separate  vote of any class is
required.

2.  SIGNIFICANT  ACCOUNTING  POLICIES  -- The  financial  statements  have  been
prepared in conformity  with  generally  accepted  accounting  principles  which
require  management to make certain estimates and assumptions at the date of the
financial  statements.  The  following  summarizes  the  significant  accounting
policies of the Fund:

a.   SECURITY  VALUATION --  Securities  traded on an exchange are valued at the
     last  sales  price on the  primary  exchange  or market  on which  they are
     traded.  United  Kingdom  securities  and securities for which there are no
     recent  sales  transactions  are valued  based on  quotations  provided  by
     primary market makers in such securities. Other securities not listed on an
     exchange or security market, or securities for which there is no last sales
     price, are valued at the mean of the most recent bid and asked prices.  Any
     securities for which recent market quotations are not readily available are
     valued at fair value  determined in accordance with procedures  approved by
     the Board of Directors.  Short-term  holdings  which mature in more than 60
     days are valued at current market quotations.  Short-term holdings maturing
     in 60 days or less are valued at amortized cost.

b.   FOREIGN  SECURITIES -- Investments in foreign  securities will primarily be
     traded in foreign currencies, and each Series may temporarily hold funds in
     foreign currencies.  The books and records of the Fund are maintained in US
     dollars.  Foreign  currency  amounts are translated  into US dollars on the
     following basis:

          (i)  market  value  of  investment   securities,   other  assets,  and
          liabilities,  at the daily rate of  exchange  as reported by a pricing
          service;

          (ii)  purchases  and  sales  of  investment  securities,  income,  and
          expenses,  at the rate of exchange  prevailing on the respective dates
          of such transactions.

     The  Fund's  net asset  values  per share  will be  affected  by changes in
currency  exchange rates.  Changes in foreign  currency  exchange rates may also
affect the value of dividends and interest earned,  gains and losses realized on
sales of securities,  and net investment  income and gains, if any, which are to
be distributed to shareholders of the Fund. The rate of exchange  between the US
dollar and other  currencies is determined by the forces of supply and demand in
the foreign exchange markets.

     Net  realized  foreign  exchange  gains  and  losses  arise  from  sales of
portfolio securities,  sales and maturities of short-term  securities,  sales of
foreign  currencies,  currency  gains or losses  realized  between the trade and
settlement  dates on securities  transactions,  and the  difference  between the
amounts of dividends,  interest,  and foreign  withholding taxes recorded on the
Fund's books, and the US dollar  equivalents of the amounts actually received or
paid. Net unrealized foreign exchange gains and losses arise from changes in the
value of portfolio  securities and other foreign currency denominated assets and
liabilities at period end, resulting from changes in exchange rates.

                                       67

<PAGE>

NOTES TO FINANCIAL STATEMENTS

     The Fund separates that portion of the results of operations resulting from
changes in the foreign exchange rates from the fluctuations arising from changes
in the market prices of securities  held in the portfolio.  Similarly,  the Fund
separates the effect of changes in foreign  exchange rates from the fluctuations
arising from changes in the market  prices of portfolio  securities  sold during
the period.

c.   FORWARD  CURRENCY  CONTRACTS  -- The Fund may enter into  forward  currency
     contracts  in order to hedge its  exposure  to changes in foreign  currency
     exchange  rates  on  its  foreign  portfolio  holdings,  or  other  amounts
     receivable  or  payable  in  foreign  currency.  A  forward  contract  is a
     commitment  to  purchase  or sell a foreign  currency at a future date at a
     negotiated  forward rate.  Certain risks may arise upon entering into these
     contracts from the potential  inability of counterparties to meet the terms
     of their  contracts.  The  contracts  are valued daily at current  exchange
     rates  and  any  unrealized  gain or loss  is  included  in net  unrealized
     appreciation  or  depreciation  on  translation  of assets and  liabilities
     denominated in foreign currencies and forward currency contracts.  The gain
     or loss, if any,  arising from the difference  between the settlement value
     of the forward  contract and the closing of such  contract,  is included in
     net realized gain or loss from foreign currency transactions.

d.   FEDERAL TAXES -- There is no provision for federal  income tax. Each Series
     has  elected to be taxed as a regulated  investment  company and intends to
     distribute  substantially all taxable net income and net gain realized,  if
     any,  annually.  Withholding  taxes on foreign  dividends and interest have
     been  provided  for in  accordance  with the  Fund's  understanding  of the
     applicable  country's  tax rules and rates.  e. Security  Transactions  and
     Related  Investment  Income  Investment  transactions are recorded on trade
     dates.  Identified  cost of  investments  sold is used for  both  financial
     statement and federal income tax purposes. Dividends receivable and payable
     are  recorded on  ex-dividend  dates,  except that certain  dividends  from
     foreign securities where the ex-dividend dates may have passed are recorded
     as soon as the  Fund is  informed  of the  dividends.  Interest  income  is
     recorded on an accrual basis.

f.   MULTIPLE   CLASS   ALLOCATIONS   --  All  income,   expenses   (other  than
     class-specific  expenses),  and realized and unrealized gains or losses are
     allocated  daily to each class of shares based upon the  relative  value of
     shares of each class.  Class-specific  expenses, which include distribution
     and service fees and any other items that are specifically  attributed to a
     particular class, are charged directly to such class.

g.   DISTRIBUTIONS  TO  SHAREHOLDERS  -- The treatment  for financial  statement
     purposes of  distributions  made to  shareholders  during the year from net
     investment  income or net  realized  gains may differ  from their  ultimate
     treatment for federal income tax purposes.  These differences primarily are
     caused  by  differences  in  the  timing  of  the  recognition  of  certain
     components  of  income,   expense,   or  realized  capital  gain;  and  the
     recharacterization  of foreign  exchange gains or losses to either ordinary
     income or realized  capital gains for federal  income tax  purposes.  Where
     such  differences  are permanent in nature,  they are  reclassified  in the
     components  of net  assets  based on their  ultimate  characterization  for
     federal income tax purposes. Any such reclassifications will have no effect
     on net assets,  results of operations,  or net asset value per share of the
     Fund.

     For the year ended October 31, 1998,  the Global  Technology  Fund redeemed
42,108,514 of its shares from  shareholders  aggregating  $548,141,848  of which
approximately   $22,600,000   represents   capital  gain   distributions.   This
information is provided for federal income tax purposes only.

     On November  18,  1998,  a  distribution  of $0.158 per share,  aggregating
$9,093,102,  was declared  from net  realized  long-term  gains from  investment
transactions  for the  Global  Technology  Fund.  The  capital  gain was paid on
November 23, 1998, to shareholders of record on November 18, 1998.

3.  PURCHASES  AND SALES OF  SECURITIES  --  Purchases  and  sales of  portfolio
securities,  excluding  short-term  investments,  for the year ended October 31,
1998, were as follows:

       SERIES                      PURCHASES       SALES
- --------------------            -------------  --------------
International Fund              $ 74,353,775   $ 85,421,336
Emerging Markets
   Growth Fund                    69,700,870     80,785,932
Global Growth
   Opportunities Fund             86,868,064    118,986,574
Global Smaller
   Companies Fund                492,779,712    693,548,503
Global Technology Fund           688,465,629    862,522,906


                                       68

<PAGE>

NOTES TO FINANCIAL STATEMENTS

     At  October  31,  1998,  the cost of  investments  for  federal  income tax
purposes  was  substantially  the  same  as the  cost  for  financial  reporting
purposes,  and the tax basis gross  unrealized  appreciation and depreciation of
portfolio  securities,  including the effects of foreign currency  translations,
were as follows:

                                             TOTAL              TOTAL
                                           UNREALIZED        UNREALIZED
       SERIES                             APPRECIATION      DEPRECIATION
- -----------------------                  -------------      -------------
International Fund                       $ 16,433,547      $   1,837,759
Emerging Markets
   Growth Fund                              6,137,469         11,028,879
Global Growth
   Opportunities Fund                      51,939,755          3,668,839
Global Smaller
   Companies Fund                         135,382,787        102,987,503
Global Technology Fund                    135,065,742         85,736,896


4.  MANAGEMENT FEE,  DISTRIBUTION  SERVICES,  AND OTHER  TRANSACTIONS -- J. & W.
Seligman & Co.  Incorporated (the "Manager") manages the affairs of the Fund and
provides or arranges for the  necessary  personnel and  facilities.  The Manager
receives a fee,  calculated daily and payable monthly,  equal to 1.25% per annum
of the average  daily net assets of the Emerging  Markets  Growth Fund and 1.00%
per annum of each of the other Series'  average daily net assets.  Prior to July
1, 1998,  Seligman  Henderson  Co., an entity  owned 50% each by the Manager and
Henderson  International,  Inc., a subsidiary of Henderson  plc,  supervised and
directed the Fund's global investments  pursuant to subadvisory  agreements with
the  Manager.  Under the  subadvisory  agreements,  the  Manager  paid  Seligman
Henderson  Co.  1.15% per annum of the average  daily net assets of the Emerging
Markets  Growth  Fund and 0.90% per annum of each of the other  Series'  average
daily net assets.

     On March 30, 1998, AMP Limited,  an Australian life insurance and financial
services  company,  completed an acquisition of Henderson plc, which resulted in
the  termination  of the Fund's  subadvisory  agreements.  The  Fund's  Board of
Directors  approved interim  subadvisory  agreements  pursuant to which Seligman
Henderson Co.  continued to supervise and direct the Fund's global  investments.
The Fund's directors also approved a proposed new subadvisory agreement pursuant
to  which  Henderson  Investment   Management  Limited  (the  "Subadviser"),   a
wholly-owned  subsidiary of Henderson plc, would replace Seligman  Henderson Co.
as subadviser to theFund and be responsible  for furnishing  investment  advice,
research and assistance  with respect to the Fund's  international  investments.
Under  the  new  agreement,  the  Manager  is  responsible  for  the  Fund's  US
investments and has overall  responsibility for management of the Fund. Both the
interim  and  the  new  subadvisory  agreements  were  approved  by  vote of the
shareholders of the Fund on June 30, 1998. Under the new subadvisory  agreement,
the Manager pays the  Subadviser a subadvisory  fee for each Series at a rate of
0.90%  per  annum  of  the  average   monthly  assets  under  the   Subadviser's
supervision.

     Compensation of all officers of the Fund, all directors of the Fund who are
employees or consultants  of the Manager,  and all personnel of the Fund and the
Manager is paid by the Manager or by Henderson plc.

     Seligman Advisors,  Inc. (the  "Distributor")  (formerly Seligman Financial
Services,  Inc.),  agent for the  distribution  of each Series'  shares,  and an
affiliate of the Manager,  received  concessions  after commissions were paid to
dealers for sales of Class A shares as follows:

                                DISTRIBUTOR       DEALER
   SERIES                       CONCESSIONS     COMMISSIONS
- -----------------------      --------------- ---------------
International Fund               $13,622         $104,107
Emerging Markets
   Growth Fund                    11,459           89,616
Global Growth
   Opportunities Fund             19,994          156,963
Global Smaller
   Companies Fund                 94,085          753,981
Global Technology Fund           121,127          978,251

     Each Series of the Fund has an  Administration,  Shareholder  Services  and
Distribution Plan (the "Plan") with respect to distribution of its shares. Under
the Plan, with respect to Class A shares,  service  organizations can enter into
agreements  with the  Distributor and receive a continuing fee of up to 0.25% on
an annual basis, payable quarterly, of the average daily net assets of the Class
A shares  attributable  to the particular  service  organizations  for providing
personal   services  and/or  the  maintenance  of  shareholder   accounts.   The
Distributor  charges  such fees to the Fund  pursuant to the Plan.  For the year
ended October 31, 1998,  fees incurred by the  International  Fund, the Emerging
Markets  Growth Fund, the Global Growth  Opportunities  Fund, the Global Smaller
Companies  Fund, and the Global  Technology Fund  aggregated  $97,702,  $80,916,
$261,123, $982,147, and $1,334,768, respectively, or 0.21%, 0.23%, 0.24%, 0.24%,
and 0.24%,  respectively,  per annum of the average  daily net assets of Class A
shares.

     Under  the  Plan,  with  respect  to Class B and  Class D  shares,  service
organizations  can enter into  agreements  with the  Distributor  and  receive a
continuing fee for providing personal

                                       69

<PAGE>

 
NOTES TO FINANCIAL STATEMENTS
 

services  and/or the  maintenance of  shareholder  accounts of up to 0.25% on an
annual  basis of the average  daily net assets of the Class B and Class D shares
for which the organizations are responsible;  and, for Class D shares only, fees
for providing other distribution assistance of up to 0.75% on an annual basis of
such  average  daily net assets.  Such fees are paid  monthly by the Fund to the
Distributor pursuant to the Plan.

     With respect to Class B shares,  a  distribution  fee of 0.75% on an annual
basis  of  average  daily  net  assets  is  payable  monthly  by the Fund to the
Distributor;  however,  the Distributor has sold its rights to substantially all
of this fee to a third party (the  "Purchaser"),  which provides  funding to the
Distributor  to enable it to pay  commissions to dealers at the time of the sale
of the related Class B shares.

     For the year  ended  October  31,  1998,  fees  incurred  under  the  Plan,
equivalent  to 1% per annum of the average daily net assets of Class B and Class
D shares, were as follows:

     Series                                 Class B            Class D
- ------------------------                  -----------        ----------
International Fund                           $ 84,989         $ 408,081
Emerging Markets
   Growth Fund                                242,231           230,636
Global Growth
   Opportunities Fund                         214,020           675,874
Global Smaller
   Companies Fund                           2,534,097         3,401,501
Global Technology Fund                        599,016         2,183,150
 
     The  Distributor  is entitled to retain any CDSC imposed on  redemptions of
Class D shares occurring within one year of purchase and on certain  redemptions
of Class  Ashares  occurring  within 18 months of  purchase.  For the year ended
October 31, 1998, such charges were as follows:

 
    Series                                  Amount
- -------------                              --------
International Fund                         $  7,109
Emerging Markets Growth Fund                 16,136
Global Growth Opportunities Fund             15,178
Global Smaller
Companies Fund                              118,278
Global Technology Fund                       42,732

     The  Distributor  has sold its  rights  to  collect  any  CDSC  imposed  on
redemptions of Class B shares to the Purchaser.  In connection  with the sale of
its rights to collect any CDSC and the distribution fees with respect to Class B
shares  described above,  the Distributor  receives  payments from the Purchaser
based on the  value  of  Class B shares  sold.  The  aggregate  amounts  of such
payments and the Class B shares  distribution  fees retained by the  Distributor
for the year ended October 31, 1998, were as follows:


      Series                            Amount
  -------------                        --------
International Fund                     $ 7,600
Emerging Markets Growth Fund             8,034
Global Growth Opportunities Fund         8,743
Global Smaller Companies Fund            2,534
Global Technology Fund                  28,886

     Seligman  Services,  Inc.,  an  affiliate  of the  Manager,  is eligible to
receive  commissions  from  certain  sales of  shares  of the  Fund,  as well as
distribution  and service fees pursuant to the Plan.  For the year ended October
31, 1998, Seligman Services,  Inc. received  commissions from the sale of shares
of each Series and  distribution  and  service  fees,  pursuant to the Plan,  as
follows:


                                              Distribution
    Series                 Commissions     and service fees
  --------                 ---------      -------------------
nternational Fund           $ 8,971            $20,727
Emerging Markets
   Growth Fund                  647              6,219
Global Growth
   Opportunities Fund        10,047              2,295
Global Smaller
   Companies Fund            45,438             11,939
Global Technology Fund       90,491             26,484

     Seligman  Data  Corp.,  which  is owned by  certain  associated  investment
companies,  charged  at cost for  shareholder  account  services  the  following
amounts:


       Series                        Amount
- ------------------                -------------
International Fund                  $  226,490
Emerging Markets Growth Fund           311,815
Global Growth Opportunities Fund       501,782
Global Smaller Companies Fund        2,563,167
Global Technology Fund               2,184,002

     Certain officers and directors of the Fund are officers or directors of the
Manager,  Seligman  Henderson Co., the  Distributor,  Seligman  Services,  Inc.,
and/or Seligman Data Corp.

     The Fund has a compensation  arrangement  under which directors who receive
fees may elect to defer  receiving such fees.  Directors may elect to have their
deferred fees accrue  interest or earn a return based on the  performance of the
Fund or other funds in the Seligman Group of Investment Companies. Deferred fees
and related  accrued  earnings are not deductible by the Fund for federal income
tax  purposes  until such  amounts  are paid.  The annual  cost of such fees and
earnings accrued thereon is included in directors' fees and

                                       70

<PAGE>

expenses, and the accumulated balances thereof at October 31, 1998, are included
in other liabilities, as follows:

     SERIES                                       AMOUNT
- ------------------                              ----------
International Fund                              $12,108
Emerging Markets GrowthFund                       1,573
Global Growth Opportunities Fund                  3,088
Global Smaller Companies Fund                    11,300
Global Technology Fund                            7,955

5.  COMMITTED  LINE OF CREDIT -- Effective July 1, 1998,the F und terminated its
$100  million  committed  line of credit and entered  into a joint $800  million
committed  line of  credit  that is  shared  by  substantially  all funds in the
Seligman Group of Investment Companies.  The Fund's borrowings are limited to 5%
of its net assets.  Borrowings  pursuant to the credit  facility  are subject to
interest at a rate equal to the  overnight  federal  funds rate plus 0.50% on an
overnight  basis.  The Fund  incurs a  commitment  fee of 0.80% per annum on its
share of the unused portion of the credit  facility.  The credit facility may be
drawn upon only for temporary purposes and is subject to certain other customary
restrictions.  The credit facility  commitment expires one year from the date of
the agreement but is renewable with the consent of the  participating  banks. To
date, the Fund has not borrowed from the credit facility.

6. LOSS  CARRYFORWARD -- In accordance with current federal income tax law, each
of the Series' net realized  capital gains and losses are considered  separately
for purposes of determining taxable capital gains on an annual basis. At October
31, 1998,  the Emerging  Markets  Growth Fund,  the Global Growth  Opportunities
Fund, and the Global Smaller  Companies Fund had net capital loss  carryforwards
for federal income tax purposes of  $23,269,538,  $1,139,976,  and  $22,271,988,
respectively,  which are available for offsets  against future  taxable  capital
gains,  expiring in various amounts through 2006.  Accordingly,  no capital gain
distributions  are expected to be paid to  shareholders  until net capital gains
have been realized in excess of the available capital loss carryforwards.

7. AFFILIATED ISSUERS -- As defined under the Investment Company Act of 1940, as
amended,  affiliated issuers are those issuers in which a Series' holdings of an
issuer represent 5% or more of the outstanding  voting securities of the issuer.
A summary of the Fund's  transactions  in the securities of these issuers during
the year ended October 31, 1998, is as follows:

<TABLE>
<CAPTION>
                                            GROSS      GROSS SALES
                            Beginning      PURCHASES       AND         Ending       Realized       Dividend          Ending
Affiliate                    Shares      AND ADDITIONS  REDUCTIONS     Shares      Gain (LOSS)      Income            Value
- -----------               ------------  --------------  ----------- -----------  -------------    ----------       -----------
<S>                        <C>             <C>            <C>         <C>          <C>             <C>             <C>
GLOBAL SMALLER                                                                                    
COMPANIES FUND                                                                                    
Bon Appetit Holding ..        12,353            --          4,357          7,996   $   793,929             --     $ 4,420,197
La Doria .............     2,252,166        41,925        608,000      1,686,091      (422,782)            --       5,922,433
L'Europeenne                                                                                      
  d'Extincteurs ......       142,402            --         10,177        132,225        67,359             --       6,887,712
FactSet Research                                                                                  
   Systems ...........       500,000            --        500,000             --     5,467,036             --              --
Simon Transportation                                                                              
   Services ...........      270,000            --        270,000             --    (1,525,269)            --              --
                                                                                   -----------    -----------     -----------
                                                                                   $ 4,380,273*            --     $17,230,342
                                                                                   ===========    ===========     ===========
                                                                                                
GLOBAL TECHNOLOGY FUND
CMP Media (Class A) ..       700,000       187,400         87,400        800,000   $  (683,067)            --     $ 7,800,000
IlionGroup ...........     1,616,914            --             --      1,616,914            --       $ 63,699       1,447,659
Linx Printing
     Technologies ....       570,000            --             --        570,000            --         16,148       1,096,979
Tecnomatix
     Technologies ....            --       500,000             --        500,000            --             --       7,250,000
                                                                                   -----------    -----------     -----------
                                                                                   $  (683,067)      $ 79,847     $17,594,638
                                                                                   ===========    ===========     ===========
</TABLE>
- ---------------
*Includes net realized loss from foreign currency transactions of $348,058.


                                       71

<PAGE>

NOTES TO FINANCIAL STATEMENTS

8. CAPITAL  STOCK SHARE  TRANSACTIONS  -- The Fund has  2,000,000,000  shares of
Capital  Stock  authorized.  The  Board of  Directors,  at its  discretion,  may
classify any unissued  shares of Capital  Stock among any Series of the Fund. At
October 31,  1998,  400,000,000  shares were  authorized  for each Series of the
Fund, all at a par value of $.001 per share.

<TABLE>
<CAPTION>
                                                        INTERNATIONAL             EMERGING MARKETS            GLOBAL GROWTH
                                                            FUND                    GROWTH FUND            OPPORTUNITIES FUND
                                                  -----------------------    ------------------------   ------------------------
                                                   YEAR ENDED OCTOBER 31,     YEAR ENDED OCTOBER 31,     YEAR ENDED OCTOBER 31,
                                                  -----------------------    ------------------------   ------------------------
                                                     1998        1997           1998          1997         1998          1997
                                                  ----------   ----------    ---------     ---------    ---------     ----------
<S>                                               <C>          <C>           <C>           <C>          <C>           <C>
Sale of shares:
  Class A .....................................    1,132,123      469,762    1,325,518     2,993,423      701,595      1,449,286
  Class B .....................................      250,816      219,118      570,569     2,612,415      498,253      1,123,386
  Class D .....................................      355,632      418,939      486,492     2,012,007      682,270      1,356,808
Exchanged from associated Funds:
  Class A .....................................    2,810,206    2,324,501    3,141,179     4,057,896    2,882,396        476,273
  Class B .....................................      297,215       30,506       72,054       391,346      358,767        110,609
  Class D .....................................    1,774,064      987,349      406,998     2,226,146    1,270,285        649,300
Shares issued in payment of gain distributions:
  Class A .....................................      162,848      112,811           --            --      500,843             --
  Class B .....................................       26,671        8,858           --            --       86,294             --
  Class D .....................................      161,046      137,696           --            --      302,772             --
                                                 -----------  -----------  -----------   -----------  -----------    -----------
Total .........................................    6,970,621    4,709,540    6,002,810    14,293,233    7,283,475      5,165,662
                                                 -----------  -----------  -----------   -----------  -----------    -----------
Shares repurchased:
  Class A .....................................   (1,349,489)    (966,373)  (1,916,244)   (1,498,674)  (2,727,222)    (2,814,964)
  Class B .....................................      (58,028)     (15,472)    (720,647)     (312,134)    (387,874)      (147,394)
  Class D .....................................     (568,487)    (822,399)  (1,033,695)     (502,678)  (1,596,162)      (965,125)
Exchanged into associated Funds:
  Class A .....................................   (2,842,925)  (2,337,951)  (3,863,525)   (2,482,147)  (3,027,589)      (568,846)
  Class B .....................................     (302,774)     (45,879)    (737,349)     (284,989)    (352,291)      (110,456)
  Class D .....................................   (1,875,479)  (1,216,560)  (1,478,158)   (1,454,997)    (895,935)      (626,078)
                                                 -----------  -----------  -----------   -----------  -----------    -----------
Total .........................................   (6,997,182)  (5,404,634)  (9,749,618)   (6,535,619)  (8,987,073)    (5,232,863)
                                                 -----------  -----------  -----------   -----------  -----------    -----------
Increase (decrease) in shares .................      (26,561)    (695,094)  (3,746,808)    7,757,614   (1,703,598)       (67,201)
                                                 ===========  ===========  ===========   ===========  ===========    ===========
</TABLE>

<TABLE>
<CAPTION>
                                                       GLOBAL SMALLER                  GLOBAL TECHNOLOGY
                                                       COMPANIES FUND                        FUND
                                                  --------------------------      --------------------------
                                                     YEAR ENDED OCTOBER 31,          YEAR ENDED OCTOBER 31,
                                                  --------------------------      ---------------------------
                                                      1998           1997            1998            1997
                                                  -----------    -----------      -----------     ----------
<S>                                               <C>            <C>              <C>              <C>
Sale of shares:
  Class A .....................................    10,022,623     10,709,397        4,176,254       3,700,869
  Class B .....................................     2,848,299     11,006,362        1,176,951       2,147,619
  Class D .....................................     2,596,605      8,914,612        1,189,506       1,953,820
Exchanged from associated Funds:
  Class A .....................................    14,424,445      2,567,331       15,149,055       9,603,055
  Class B .....................................       401,071        578,628          357,448         599,186
  Class D .....................................     2,673,250      1,545,821        9,576,218       2,118,807
Shares issued in payment of gain distributions:
  Class A .....................................     1,085,903      1,069,396        7,189,429              --
  Class B .....................................       677,168        335,948          710,545              --
  Class D .....................................     1,009,423        936,187        3,070,660              --
                                                  -----------    -----------      -----------     -----------
Total .........................................    35,738,787     37,663,682       42,596,066      20,123,356
                                                  -----------    -----------      -----------     -----------
Shares repurchased:
  Class A .....................................   (11,356,046)    (6,615,043)     (10,448,450)     (8,669,868)
  Class B .....................................    (2,026,859)    (1,358,539)        (513,317)       (325,415)
  Class D .....................................    (6,095,959)    (4,192,374)      (3,753,667)     (3,500,176)
Exchanged into associated Funds:
  Class A .....................................   (15,405,894)    (3,071,754)     (16,445,590)    (10,296,821)
  Class B .....................................    (1,836,699)    (1,159,574)        (442,471)       (519,418)
  Class D .....................................    (4,534,421)    (1,979,913)      (2,561,251)     (2,561,251)
                                                  -----------    -----------      -----------     -----------
Total .........................................   (41,255,878)   (18,377,197)     (42,108,514)    (25,872,949)
                                                  -----------    -----------      -----------     -----------
Increase (decrease) in shares .................    (5,517,091)    19,286,485          487,552      (5,749,593)
                                                  ===========    ===========      ===========     ===========
</TABLE>


                                       72

<PAGE>


9. Outstanding  Forward Exchange  Currency  Contracts--At  October 31, 1998, the
Fund had outstanding  forward  exchange  currency  contracts to purchase or sell
foreign currencies as follows:

<TABLE>
<CAPTION>
 
                                                                                                            UNREALIZED
                                        FOREIGN         IN EXCHANGE       SETTLEMENT                       APPRECIATION
CONTRACT                               CURRENCY          FOR US $            DATE          VALUE US $     (depreciation)
- -----------                           -----------      -------------     ------------      -----------    -------------
<S>                                  <C>               <C>                 <C>              <C>           <C>
INTERNATIONAL FUND
Purchases:
Germandeutschemarks                      451,329         272,937             11/3/98          272,871     $         (66)
Spanish pesetas                       13,278,322          94,440             11/3/98           94,434                (6)
Swiss francs                             191,433         141,540             11/3/98          141,665               125
Swiss francs                             156,781         115,365             11/4/98          116,023               658
Japanese yen                         146,652,000       1,100,000            11/18/98        1,265,441           165,441
                                                                                                          -------------
                                                                                                          $     166,152
                                                                                                          =============
SALES:
Italianlira                          513,322,300         313,479             11/3/98          313,575     $         (96)
Portuguese escudos                   102,869,933         606,008             11/3/98          602,971             3,037
Japanese yen                         517,644,000       3,600,000            11/18/98        4,466,684          (866,684)
Japanese yen                         246,690,300       1,900,000            11/18/98        2,128,659          (228,659)
                                                                                                          -------------
                                                                                                          $  (1,092,402)
                                                                                                          =============

EMERGING MARKETS GROWTH FUND
Purchases:
Hong Kong dollars                      4,547,179         586,922             11/2/98          587,149     $         227
                                                                                                          =============
Sales:
Greek drachma                         58,901,869         209,243             11/3/98          209,377     $        (134)
SouthAfrican rand                      1,201,681         214,108             11/3/98          214,203               (95)
                                                                                                          -------------
                                                                                                          $        (229)
                                                                                                          =============

GLOBAL GROWTH OPPORTUNITIES FUND
Purchases:
Japanese yen                         399,960,000       3,000,000            11/18/98        3,451,204     $     451,204
Japanese yen                         354,636,000       3,000,000            11/18/98        3,060,108            60,108
                                                                                                          -------------
                                                                                                          $     511,312
                                                                                                          =============

SALES:
Singapore dollars                          6,990           4,313             11/2/98            4,305     $           8
Swiss francs                              12,358           9,221             11/2/98            9,145                76
Italian lira                       3,169,129,710       1,935,346             11/3/98        1,935,937              (591)
Japanese yen                         905,877,000       6,300,000            11/18/98        7,816,697        (1,516,697)
Japanese yen                         454,429,500       3,500,000            11/18/98        3,921,214          (421,214)
                                                                                                          -------------
                                                                                                          $  (1,938,418)
                                                                                                          =============
</TABLE>

                                       73


<PAGE>

<TABLE>
<CAPTION>
                                                                                                  UNREALIZED
                                        FOREIGN      IN EXCHANGE    SETTLEMENT                   APPRECIATION
CONTRACT                               CURRENCY       FOR US $         DATE       VALUE US $    (depreciation)
- -----------                           -----------   -------------  ------------   -----------   ---------------
<S>                                <C>              <C>             <C>          <C>            <C>
GLOBAL SMALLER COMPANIES FUND
Purchases:
Netherland guilders                      318,954        171,683       11/2/98        170,920      $      (763)
Hong Kong dollars                      2,124,426        274,314       11/3/98        274,314               --
Japanese yen                       1,333,200,000     10,000,000      11/18/98     11,504,012        1,504,012
Japanese yen                         585,000,000      5,036,157      11/18/98      5,047,890           11,733
                                                                                                  -----------
                                                                                                  $ 1,514,982
                                                                                                  ===========
Sales:
Austrian schillings                      420,384         36,255       11/2/98         36,126      $       129
Japanese yen                          27,201,624        234,093       11/2/98        233,841              252
Swiss francs                              72,474         54,077       11/2/98         53,633              444
Japanese yen                       4,026,120,000     28,000,000      11/18/98     34,740,875       (6,740,875)
Japanese yen                       2,012,473,500     15,500,000      11/18/98     17,365,377       (1,865,377)
                                                                                                  -----------
                                                                                                  $(8,605,427)
                                                                                                  ===========
GLOBAL TECHNOLOGY FUND
Purchases:
British pounds                            54,313         91,154       11/2/98         90,893      $      (261)
Netherland guilders                    5,413,181      2,903,288       11/3/98      2,900,799           (2,489)
Swedish kronor                        27,347,198      3,505,826       11/3/98      3,508,525            2,699
                                                                                                  -----------
                                                                                                  $       (51)
                                                                                                  ===========

Sales:
Japanese yen                       2,663,600,000     20,000,000      11/30/98     23,021,608      $(3,021,608)
                                                                                                  ===========
</TABLE>


                                       74

<PAGE>


FINANCIAL HIGHLIGHTS

     The Fund's financial  highlights are presented below.  "Per share operating
performance"  data is  designed  to  allow  investors  to  trace  the  operating
performance  of each Class,  on a per share basis,  from the beginning net asset
value to the ending net asset  value,  so that  investors  can  understand  what
effect the  individual  items  have on their  investment,  assuming  it was held
throughout  the  period.  Generally,  the  per  share  amounts  are  derived  by
converting the actual dollar amounts incurred for each item, as disclosed in the
financial  statements,  to their equivalent per share amounts,  based on average
shares outstanding.

     "Total return based on net asset value"  measures each Class's  performance
assuming  that  investors  purchased  Fund  shares at net asset  value as of the
beginning of the period,  invested dividends and capital gains paid at net asset
value,  and then sold their shares at the net asset value on the last day of the
period. The total return computations do not reflect any sales charges investors
may incur in  purchasing  or selling  shares of each Series.  Total  returns for
periods of less than one year are not annualized.

<TABLE>
<CAPTION>
                                                                                  CLASS A
                                                         ------------------------------------------------------
INTERNATIONAL FUND                                                          YEAR ENDED OCTOBER 31,
                                                         ------------------------------------------------------
Per Share Operating Performance:                          1998       1997       1996        1995        1994
                                                         ------     ------     ------      ------      ------
<S>                                                     <C>        <C>        <C>         <C>          <C>

NET ASSET VALUE, BEGINNING OF YEAR .................     $17.92     $17.17     $16.71      $17.67       $15.98
                                                         ------     ------     ------      ------       ------
Net investment income (loss) .......................       0.03      (0.04)      0.05        0.06         0.04
Net realized and unrealized investment gain (loss) .       0.62       2.47       1.77       (0.42)        0.91
Net realized and unrealized gain (loss) from foreign
  currency transactions ............................       0.40      (0.79)     (0.44)       0.09         1.08
                                                         ------     ------      -----      ------       ------
INCREASE (DECREASE) FROM INVESTMENT OPERATIONS .....       1.05       1.64       1.38       (0.27)        2.03
Dividends paid .....................................         --         --         --          --        (0.01)
Distributions from net gain realized ...............      (1.22)     (0.89)     (0.92)      (0.69)       (0.33)
                                                         ------     ------      -----      ------       ------
NET INCREASE (DECREASE) IN NET ASSET VALUE .........      (0.17)      0.75       0.46       (0.96)        1.69
                                                         ------     ------      -----      ------       ------
NET ASSET VALUE, END OF YEAR .......................     $17.75     $17.92     $17.17      $16.71       $17.67
                                                         ======     ======     ======      ======       ======
TOTAL RETURN BASED ON NET ASSET VALUE: .............       6.51%      9.83%      8.43%      (1.24)%      12.85

RATIOS/SUPPLEMENTAL DATA:
Expenses to average net assets .....................       1.69%      1.78%      1.81%       1.69%        1.63%
Net investment income (loss) to average net assets .       0.16%     (0.23)%     0.28%       0.35%        0.27%
Portfolio turnover .................................      81.37%     83.11%     55.71%      60.70%       39.59%
NET ASSETS, END OF YEAR (000s omitted) .............    $44,122    $46,107    $50,998     $48,763      $62,922

</TABLE>
- --------------
See footnotes on page 79.

                                       75


<PAGE>

FINANCIAL HIGHLIGHTS

                                                              CLASS B
                                                -------------------------------
INTERNATIONAL FUND (CONTINUED)                       YEAR ENDED
                                                     OCTOBER 31,       4/22/96*
                                                -------------------       TO
PER SHARE OPERATING PERFORMANCE:                   1998        1997    10/31/96
                                                 -------     -------  ---------
NET ASSET VALUE, BEGINNING OF PERIOD ....         $17.30     $16.74   $17.38
                                                  ------     ------   -------
Net investment loss .....................          (0.12)     (0.18)   (0.03)
Net realized and unrealized investment
 gain (loss) ............................           0.57       2.42    (0.54)
Net realized and unrealized loss from
  foreign currency transactions .........           0.40      (0.79)   (0.07)
                                                  ------     ------   ------
INCREASE (DECREASE) FROM INVESTMENT
  OPERATIONS ............................           0.85       1.45    (0.64)
Dividends paid ..........................             --         --       --
Distributions from net gain realized ....          (1.22)     (0.89)      --
                                                  ------     ------   ------
NET INCREASE (DECREASE) IN
  NET ASSET VALUE .......................          (0.37)      0.56    (0.64)
                                                  ------     ------   -------
NET ASSET VALUE, END OF PERIOD ..........         $16.93     $17.30   $16.74
                                                  ======     ======   =======
Total Return Based on Net AssetValue: ...           5.51%      8.90%   (3.68)%

Ratios/Supplemental Data:
Expenses to average net assets ..........           2.55%      2.58%    2.66%+
Net investment loss to average net assets          (0.70)%   (1.03)%   (0.35)%+
Portfolio turnover ......................          81.37%     83.11%   55.71%++
Net Assets, End of Period (000s omitted)           $9,835    $6,350   $2,843


<TABLE>
<CAPTION>
                                                                         CLASS D
                                               --------------------------------------------------------
                                                                  YEAR ENDED OCTOBER 31,
                                               --------------------------------------------------------
PER SHARE OPERATING PERFORMANCE:                1998        1997        1996         1995        1994
                                               ------      ------      ------       ------      ------
<S>                                            <C>          <C>         <C>         <C>          <C>
NET ASSET VALUE, BEGINNING OF YEAR ..........  $17.30       $16.74      $16.43      $17.53       $15.96
                                               ------       ------      ------      ------       ------
Net investment loss .........................   (0.12)       (0.18)      (0.08)      (0.07)       (0.09)
Net realized and unrealized investment
      gain (loss) ...........................    0.57         2.42        1.75       (0.43)        0.91
Net realized and unrealized gain (loss)
      from foreign currency transactions ....    0.40        (0.79)      (0.44)       0.09         1.08
                                               ------       ------      ------      ------       ------
INCREASE (DECREASE) FROM INVESTMENT
  OPERATIONS ................................    0.85         1.45        1.23       (0.41)        1.90
Dividends paid ..............................      --           --          --          --           --
Distributions from net gain realized ........   (1.22)       (0.89)      (0.92)      (0.69)       (0.33)
                                               ------       ------      ------      ------       ------
NET INCREASE (DECREASE) IN
  NET ASSET VALUE ...........................   (0.37)        0.56        0.31       (1.10)        1.57
                                               ------       ------      ------      ------       ------
NET ASSET VALUE, END OF YEAR ................  $16.93       $17.30      $16.74      $16.43       $17.53
                                               ======       ======      ======      ======       ======
TOTAL RETURN BASED ON NET ASSE VALUE: .......    5.51%        8.90%       7.62%      (2.08)%      12.03%

RATIOS/SUPPLEMENTAL DATA:
Expenses to average net assets ..............    2.55%        2.58%       2.64%       2.50%        2.50%
Net investment loss to average net assets ...   (0.70)%      (1.03)%     (0.47)%     (0.44)%      (0.53)%
Portfolio turnover ..........................   81.37%       83.11%      55.71%      60.70%       39.59%
NET ASSETS, END OF YEAR (000s omitted) ...... $37,485      $40,977     $47,917     $31,273      $19,903
Without expense reimbursement and/or
  management fee waiver:**
  Net investment loss per share .............                                       $(0.09)      $(0.11)
  Ratios:
  Expenses to average net assets ............                                         2.62%        2.67%
  Net investment loss to average net assets..                                        (0.56)%      (0.70)%
</TABLE>
- -------------
See footnotes on page 79.


                                       76



<PAGE>

FINANCIAL HIGHLIGHTS

<TABLE>
<CAPTION>

                                                    CLASS A                        CLASS B                  CLASS D
                                           --------------------------    --------------------------    ----------------------------
EMERGING MARKETS                              YEAR ENDED                    YEAR ENDED                   YEAR ENDED
GROWTH FUND                                   OCTOBER 31,    5/28/96*       OCTOBER 31,    5/28/96*      OCTOBER 31,    5/28/96*
                                           ---------------      TO       -----------------    TO       ---------------      TO
PER SHARE OPERATING PERFORMANCE:            1998     1997    10/31/96     1998     1997    10/31/96     1998     1997    10/31/96
                                           ------   ------   --------    ------   ------   --------    ------   ------   ---------
<S>                                        <C>       <C>     <C>        <C>       <C>      <C>        <C>       <C>      <C>
NET ASSET VALUE, BEGINNING OF PERIOD ...   $7.34     $6.78    $7.14      $7.27     $6.76    $7.14      $7.27     $6.76    $7.14
                                           -----     -----    -----      -----     -----    -----      -----     -----    -----
Net investment loss ....................   (0.01)    (0.05)   (0.02)     (0.06)    (0.11)   (0.04)     (0.06)    (0.11)   (0.04)
Net realized and unrealized investment
  gain (loss) ..........................   (2.00)     1.05    (0.25)     (1.97)     1.06    (0.25)     (1.97)     1.06    (0.25)
Net realized and unrealized loss from
  foreign currency transactions ........   (0.15)    (0.44)   (0.09)     (0.15)    (0.44)   (0.09)     (0.15)    (0.44)   (0.09)
                                           -----     -----    -----      -----     -----    -----      -----     -----    -----
INCREASE (DECREASE) FROM INVESTMENT
  OPERATIONS ...........................   (2.16)     0.56    (0.36)     (2.18)     0.51    (0.38)     (2.18)     0.51    (0.38)
Dividends paid .........................      --        --       --         --        --       --         --        --       --
Distributions from net gain realized ...      --        --       --         --        --       --         --        --       --
                                           -----     -----    -----      -----     -----    -----      -----     -----    -----
NET INCREASE (DECREASE) IN
  NET ASSET VALUE ......................   (2.16)     0.56    (0.36)     (2.18)     0.51    (0.38)     (2.18)     0.51    (0.38)
                                           -----     -----    -----      -----     -----    -----      -----     -----    -----
NET ASSET VALUE, END OF PERIOD .........   $5.18     $7.34    $6.78      $5.09     $7.27    $6.76      $5.09     $7.27    $6.76
                                           =====     =====    =====      =====     =====    =====      =====     =====    =====
TOTAL RETURN BASED ON NET ASSET VALUE: .  (29.43)%    8.26%   (5.04)%   (29.99)%    7.54%   (5.32)%   (29.99)%    7.54%   (5.32)%

RATIOS/SUPPLEMENTAL DATA:
Expenses to average net assets .........    2.22%     2.27%    2.22%+     2.99%     3.04%    3.00%+     2.99%     3.04%    3.00%+
Net investment loss to average
  net assets ...........................   (0.12)%   (0.56)%  (0.69)%+   (0.89)%   (1.33)%  (1.47)%+   (0.89)%   (1.33)%  (1.47)%+
Portfolio turnover .....................   94.09%    84.09%   12.24%     94.09%    84.09%   12.24%     94.09%    84.09%   12.24%
Net Assets, End of Period (000s omitted) $24,294   $44,061  $19,864    $16,031   $28,819  $10,541    $13,667   $31,259  $13,664
Without expense reimbursement and/or
  management fee waiver:**
  Net investment loss per share ........                     $(0.05)                       $(0.07)                       $(0.07)
  Ratios:
  Expenses to average net assets .......                       3.02%+                        3.80%+                        3.80%+
  Net investment loss to average
   net assets ..........................                      (1.49)%+                      (2.27)%+                      (2.27)%+
</TABLE>

<TABLE>
<CAPTION>
                                                     CLASS A                      CLASS B                         CLASS D
                                           ---------------------------   ---------------------------    ----------------------------
GLOBAL GROWTH                                 YEAR ENDED     11/1/95*       YEAR ENDED    4/22/96*      YEAR ENDED      11/1/95*
OPPORTUNITIES FUND                            OCTOBER 31,      TO           OCTOBER 31,      TO         OCTOBER 31,        TO
                                           -----------------             -----------------              -----------------
PER SHARE OPERATING PERFORMANCE:            1998     1997    10/31/96     1998     1997    10/31/96     1998      1997     10/31/96
                                           ------   ------   ---------   ------   ------   ---------   ------    ------    ---------
<S>                                        <C>      <C>       <C>        <C>      <C>       <C>        <C>       <C>       <C>
                                                                                                                         
NET ASSET VALUE, BEGINNING OF PERIOD ....  $9.20     $8.08    $7.14      $9.06     $8.02    $8.04      $9.06     $8.02     $7.14
                                           -----     -----    -----      -----     -----    -----      -----     -----     -----
Net investment loss .....................  (0.05)    (0.05)   (0.03)     (0.12)    (0.12)   (0.04)     (0.12)    (0.12)    (0.09)
Net realized and unrealized                                                                                              
  investment gain .......................   0.81      1.47     1.12       0.80      1.46     0.06       0.80      1.46      1.12
Net realized and unrealized                                                                                              
   gain (loss) from                                                                                                      
  foreign currency transactions .........   0.08     (0.30)   (0.15)      0.08     (0.30)   (0.04)      0.08     (0.30)    (0.15)
                                           -----     -----    -----      -----     -----    -----      -----     -----     -----
INCREASE (DECREASE) FROM                                                                                                 
  INVESTMENT OPERATIONS .................   0.84      1.12     0.94       0.76      1.04    (0.02)      0.76      1.04      0.88
Dividends paid ..........................     --        --       --         --        --       --         --        --        --
Distributions from net gain realized ....  (0.42)       --       --      (0.42)       --       --      (0.42)            
                                           -----     -----    -----      -----     -----    -----      -----     -----     -----
                                                                                                                         
NET INCREASE (DECREASE) IN NET                                                                                           
  ASSET VALUE ...........................   0.42      1.12     0.94       0.34      1.04    (0.02)      0.34      1.04      0.88
                                           -----     -----    -----      -----     -----    -----      -----     -----     -----
                                                                                                                         
NET ASSET VALUE, END OF PERIOD ..........  $9.62     $9.20    $8.08      $9.40     $9.06    $8.02      $9.40     $9.06     $8.02
                                           =====     =====    =====      =====     =====    =====      =====     =====     =====
TOTAL RETURN BASED ON NET ASSET VALUE: ..   9.52%    13.86%   13.17%      8.76%    12.97%   (0.25)%     8.76%    12.97%    12.33%
                                                                                                                         
RATIOS/SUPPLEMENTAL DATA:                                                                                                
Expenses to average net assets ..........   1.68%     1.69%    1.91%      2.44%     2.45%    2.53%+     2.44%     2.45%     2.67%
Net investment loss to average net assets  (0.48)%   (0.59)%  (0.53)%    (1.24)%   (1.35)%  (1.13)%+   (1.24)%   (1.35)%   (1.25)%
Portfolio turnover ......................  45.43%    79.32%   31.44%     45.43%    79.32%   31.44%++   45.43%    79.32%    31.44%
NET ASSETS, END OF YEAR (000s omitted) ..$97,947  $109,060 $107,509    $21,930   $19,311   $9,257    $64,443   $64,300   $53,540
</TABLE>
- ------------------
See footnotes on page 79.

                                       77

<PAGE>

FINANCIAL HIGHLIGHTS
<TABLE>
<CAPTION>
                                                                        CLASS A
                                           ---------------------------------------------------------------------
GLOBAL SMALLER COMPANIES FUND                                     YEAR ENDED OCTOBER 31,
                                           ---------------------------------------------------------------------
PER SHARE OPERATING PERFORMANCE:                  1998       1997          1996        1995        1994
                                                 ------     ------        ------      ------      ------
<S>                                              <C>         <C>          <C>        <C>            <C>
NET ASSET VALUE, BEGINNING OF YEAR ............  $15.62      $15.14       $13.90      $11.93      $ 9.98
                                                 ------      ------       ------      ------      ------
Net investment income (loss) ..................   (0.07)         --           --       (0.02)      (0.08)
Net realized and unrealized investment
    gain (loss) ...............................   (0.85)       1.61         2.38        2.24        1.57
Net realized and unrealized gain (loss)
   from foreign currency transactions .........    0.04       (0.40)       (0.18)       0.08        0.52
                                                 ------      ------       ------      ------      ------
INCREASE (DECREASE) FROM INVESTMENT
   OPERATIONS .................................   (0.88)       1.21         2.20        2.30        2.01
Dividends paid ................................      --          --           --          --          --
Distributions from net gain realized ..........   (0.63)      (0.73)       (0.96)       (0.33)      (0.06)
                                                 ------      ------       ------      ------      ------
NET INCREASE (DECREASE) IN NET ASSET VALUE ....   (1.51)       0.48         1.24        1.97        1.95
                                                 ------      ------       ------      ------      ------
Net Asset Value, End of Year ..................  $14.11      $15.62       $15.14      $13.90      $11.93
                                                 ======      ======       ======      ======      ======
Total Return Based on Net Asset Value: ........   (5.82)%      8.28%       16.95%      20.10%      20.28%

RATIOS/SUPPLEMENTAL DATA:
Expenses to average net assets ................    1.65%       1.67%        1.75%       1.83%       1.92%
Net investment income (loss) to average
    net assets ................................   (0.45)%      0.02%        0.01%      (0.20)%     (0.77)%
Portfolio turnover ............................   50.81%      57.24%       45.38%      63.05%       62.47%
NET ASSETS, END OF YEAR (000S OMITTED) ........ $374,890    $434,397     $350,359    $102,479      $46,269
</TABLE>

<TABLE>
<CAPTION>
                                                        CLASS B                             CLASS D 
                                              ---------------------------   ----------------------------------------
                                                  YEAR ENDED
                                                  OCTOBER 31,    4/22/96*             YEAR ENDED OCTOBER 31,
                                              -----------------    TO       ----------------------------------------
PER SHARE OPERATING PERFORMANCE:                1998     1997   10/31/96     1998     1997    1996     1995     1994
                                              -------  -------- ---------   ------   ------  ------   ------   ------
<S>                                          <C>        <C>       <C>       <C>      <C>      <C>      <C>      <C>

NET ASSET VALUE, BEGINNING OF PERIOD ........  $15.04     $14.72   $14.44    $15.05   $14.72   $13.63   $11.80   $9.94
                                               ------     ------   ------    ------   ------   ------   ------   -----
Net investment loss .........................   (0.18)     (0.11)   (0.06)    (0.18)   (0.11)   (0.11)   (0.12)  (0.16)
Net realized and unrealized investment
 gain (loss) ................................   (0.81)      1.56     0.33     (0.81)    1.57     2.34     2.20    1.57
Net realized and unrealized gain (loss)
 from foreign currency transactions .........    0.04      (0.40)    0.01      0.04    (0.40)   (0.18)    0.08    0.51
                                               ------     ------   ------    ------   ------   ------   ------   -----
INCREASE (DECREASE) FROM INVESTMENT
 OPERATIONS .................................   (0.95)      1.05     0.28     (0.95)    1.06     2.05     2.16    1.92
Dividends paid ..............................      --         --       --        --       --       --       --      --
Distributions from net gain realized ........   (0.63)     (0.73)      --     (0.63)   (0.73)   (0.96)   (0.33)  (0.06)
                                               ------     ------   ------    ------   ------   ------   ------   -----
NET INCREASE (DECREASE) IN NET ASSET VALUE ..   (1.58)      0.32     0.28     (1.58)    0.33     1.09     1.83    1.86
                                               ------     ------   ------    ------   ------   ------   ------  ------
NET ASSET VALUE, END OF PERIOD ..............  $13.46     $15.04   $14.72    $13.47   $15.05   $14.72   $13.63  $11.80
                                               ======     ======   ======    ======   ======   ======   ======  ======
TOTAL RETURN BASED ON NET ASSET VALUE: ......   (6.54)%     7.39%    1.94%    (6.53)%   7.47%   16.14%   19.11%  19.45%

RATIOS/SUPPLEMENTAL DATA:
Expenses to average net assets ..............    2.41%      2.43%    2.54%+    2.41%    2.43%    2.51%    2.61%   2.70%
Net investment loss to average net assets ...   (1.21)%   (0.74)%   (0.80)%+  (1.21)%  (0.74)%  (0.75)%  (0.97)% (1.53)%
Portfolio  turnover .........................   50.81%     57.24%   45.38%++  50.81%   57.24%   45.38%   63.05%  62.47%
Net Assets, End of Period (000s omitted) ....$222,496   $247,600 $103,968  $272,992 $370,625 $285,477  $85,548 $38,317
</TABLE>

- ---------------
See footnotes on page 79.


                                       78

<PAGE>

FINANCIAL HIGHLIGHTS

<TABLE>
<CAPTION>
                                                                                             CLASS A
                                                                  ----------------------------------------------------------
GLOBAL TECHNOLOGY FUND                                                      YEAR ENDED OCTOBER 31,                  5/23/94*
                                                                 --------------------------------------------          TO
PER SHARE OPERATING PERFORMANCE:                                  1998         1997        1996         1995        10/31/94
                                                                 ------       ------      ------       ------       ---------
<S>                                                              <C>         <C>         <C>          <C>            <C>
NET ASSET VALUE, BEGINNING OF PERIOD ........................    $15.14      $11.31       $13.05      $ 8.37         $7.14
                                                                 ------      ------       ------      ------         -----
Net investment loss .........................................     (0.14)      (0.16)       (0.08)      (0.10)        (0.01)
Net realized and unrealized investment gain (loss) ..........      0.01        4.06        (0.92)       4.90          1.08
Net realized and unrealized gain (loss) from foreign
  currency transactions .....................................      0.06       (0.07)        0.05       (0.05)         0.16
                                                                 ------      ------       ------      ------         -----
INCREASE (DECREASE) FROM INVESTMENT OPERATIONS ..............     (0.07)       3.83        (0.95)       4.75          1.23
Dividends paid ..............................................        --          --        (0.02)         --            --
Distributions from net gain realized ........................     (2.59)         --        (0.77)      (0.07)           --
                                                                 ------      ------       ------      ------         -----
NET INCREASE (DECREASE) IN NET ASSET VALUE ..................     (2.66)       3.83        (1.74)       4.68          1.23
                                                                 ------      ------       ------
- ------       -----
NET ASSET VALUE, END OF PERIOD ..............................    $12.48      $15.14       $11.31      $13.05         $8.37
                                                                 ======      ======       ======      ======         =====
TOTAL RETURN BASED ON NET ASSET VALUE: ......................    (0.79)%      33.86%       (7.33)%     57.31%        17.23%

RATIOS/SUPPLEMENTAL DATA:
Expenses to average net assets ..............................      1.67%       1.67%        1.75%       1.91%         2.00%+
Net investment loss to average net assets ...................     (1.04)%     (1.10)%      (0.74)%     (0.89)%       (0.45)%+
Portfolio turnover ..........................................     87.55%      94.06%       73.00%      87.42%        29.20%
NET ASSETS, END OF PERIOD (000S OMITTED) ....................  $475,951    $583,257     $499,858    $447,732       $50,719
Without expense reimbursement and/or management fee waiver:**
  Net investment loss per share..............................                                                       $(0.02)
  Ratios:
  Expenses to average net assets ............................                                                         2.18%+
  Net investment loss to average net assets .................                                                        (0.63)%+
</TABLE>

<TABLE>
<CAPTION>
                                                             CLASS B                                 CLASS D
                                                  ----------------------------------------------------------------------------
                                                      YEAR ENDED                                                
                                                      OCTOBER 31,     4/22/96*         YEAR ENDED OCTOBER 31,         5/23/94*
                                                  -------------------    TO      -----------------------------------    TO
PER SHARE OPERATING PERFORMANCE:                    1998      1997    10/31/96    1998       1997      1996    1995   10/31/94
                                                  -------    ------   --------   ------     ------    ------  ------  --------
<S>                                               <C>      <C>        <C>       <C>       <C>       <C>        <C>      <C>

NET ASSET VALUE, BEGINNING OF PERIOD              $14.73    $11.09     $11.47    $14.73    $11.09    $12.89    $8.34    $7.14
                                                  ------    ------     ------    ------    ------    ------    -----    -----
Net investment loss                                (0.23)    (0.26)     (0.08)    (0.23)    (0.26)    (0.17)   (0.18)   (0.04)
Net realized and unrealized investment
  gain (loss)                                       0.01      3.97       (0.39)   (0.01)     3.97     (0.91)    4.85     1.08
Net realized and unrealized gain (loss)
  from foreign currency transactions                0.06     (0.07)      0.09      0.06     (0.07)     0.05    (0.05)    0.16
                                                  ------    ------     ------    ------    ------    ------   ------   ------
INCREASE (DECREASE) FROM INVESTMENT OPERATIONS     (0.16)     3.64      (0.38)    (0.18)     3.64     (1.03)    4.62     1.20
Dividends paid                                        --        --         --        --        --        --       --       --
Distributions from net gain realized               (2.59)       --         --     (2.59)       --     (0.77)   (0.07)      --
                                                  ------    ------     ------    ------    ------    ------   ------   ------
NET INCREASE (DECREASE) IN NET ASSET VALUE         (2.75)     3.64      (0.38)    (2.77)     3.64     (1.80)    4.55     1.20
                                                  ------    ------     ------    ------    ------    ------   ------  ------
NET ASSET VALUE, END OF PERIOD                    $11.98    $14.73     $11.09    $11.96    $14.73    $11.09   $12.89   $8.34
                                                  ======    ======     ======    ======    ======    ======   ======  ======
TOTAL RETURN BASED ON NET ASSET VALUE:             (1.55)%   32.82%     (3.31)%   (1.70)%   32.82%    (8.07)%  55.95%  16.81%

RATIOS/SUPPLEMENTAL DATA:
Expenses to average net assets                      2.43%     2.42%      2.51%+    2.43%     2.42%     2.52%    2.66%   2.75%+
Net investment loss to average net assets          (1.80)%   (1.85)%    (1.40)%+  (1.80)%   (1.85)%   (1.50)%  (1.63)% (1.22)%+
Portfolio turnover                                 87.55%    94.06%     73.00%++  87.55%    94.06%    73.00%   87.42%  29.20%
NET ASSETS, END OF PERIOD (000S OMITTED)         $58,575   $53,046    $18,840  $184,032  $232,882  $197,412 $161,622  $6,499
Without expense reimbursement and/or
  management fee waiver:**
  Net investment loss per share                                                                                       $(0.06)
  Ratios:
  Expenses to average net assets                                                                                        3.36%+
  Net investment loss to average net assets                                                                            (1.83)%+
</TABLE>

- ---------

*    Commencement of operations.

**   The Manager and Subadviser, at their discretion,  waived a portion of their
     fees and, in some cases, the Subadviser reimbursed certain expenses for the
     periods presented.

+    Annualized.

++   For the year ended October 31, 1996.

See Notes to Financial Statements.

                                       79

<PAGE>

REPORT OF INDEPENDENT AUDITORS


THE BOARD OF DIRECTORS AND SHAREHOLDERS,
SELIGMAN HENDERSON GLOBAL FUND SERIES, INC.:


We have audited the accompanying statements of assets and liabilities, including
the portfolios of investments,  of the International  Fund, the Emerging Markets
Growth Fund, the Global Growth  Opportunities Fund, the Global Smaller Companies
Fund, and the Global  Technology Fund Series of Seligman  Henderson  Global Fund
Series,  Inc. as of October 31, 1998,  the related  statements of operations for
the year then  ended and of  changes  in net assets for each of the years in the
two-year period then ended, and the financial highlights for each of the periods
presented.   These  financial   statements  and  financial  highlights  are  the
responsibility  of the Fund's  management.  Our  responsibility is to express an
opinion on these  financial  statements  and financial  highlights  based on our
audits.

We  conducted  our  audits  in  accordance  with  generally   accepted  auditing
standards.  Those standards require that we plan and perform the audit to obtain
reasonable  assurance  about  whether the  financial  statements  and  financial
highlights are free of material misstatement.  An audit includes examining, on a
test basis,  evidence  supporting  the amounts and  disclosures in the financial
statements.  Our procedures included confirmation of securities owned at October
31, 1998, by correspondence with the Fund's custodian and brokers; where replies
were not received from brokers, we performed other auditing procedures. An audit
also includes assessing the accounting principles used and significant estimates
made by  management,  as well as  evaluating  the  overall  financial  statement
presentation.  We believe  that our audits  provide a  reasonable  basis for our
opinion.

In our opinion,  such  financial  statements  and financial  highlights  present
fairly,  in all  material  respects,  the  financial  position of each Series of
Seligman Henderson Global Fund Series,  Inc. as of October 31, 1998, the results
of  their  operations,  the  changes  in their  net  assets,  and the  financial
highlights  for the  respective  stated  periods in  conformity  with  generally
accepted accounting principles.

DELOITTE & TOUCHE LLP
New York, New York
December 4, 1998

                                       80


<PAGE>

BOARD OF DIRECTORS


JOHN R. GALVIN 2, 4
DEAN, Fletcher School of Law and Diplomacy
   at Tufts University
DIRECTOR, Raytheon Company

ALICE S. ILCHMAN 3, 4
TRUSTEE, Committee for Economic Development
CHAIRMAN, The Rockefeller Foundation

FRANK A. MCPHERSON 2, 4
DIRECTOR, Kimberly-Clark Corporation
DIRECTOR, Baptist Medical Center

JOHN E. MEROW 2, 4
RETIRED CHAIRMAN AND SENIOR PARTNER,
   Sullivan & Cromwell, Law Firm
DIRECTOR, Commonwealth Industries, Inc.
DIRECTOR, New York Presbyterian Hospital

BETSY S. MICHEL 2, 4
TRUSTEE, The Geraldine R. Dodge Foundation
CHAIRMAN OF THE BOARD OF TRUSTEES, St. George's School

WILLIAM C. MORRIS 1
CHAIRMAN
CHAIRMAN OF THE BOARD, J. & W. Seligman & Co. Incorporated
CHAIRMAN, Carbo Ceramics Inc.
DIRECTOR, Kerr-McGee Corporation

JAMES C. PITNEY 3, 4
RETIRED PARTNER, Pitney, Hardin, Kipp & Szuch, Law Firm

JAMES Q. RIORDAN 3, 4
DIRECTOR, KeySpan Energy Corporation
TRUSTEE, Committee for Economic Development
DIRECTOR, Public Broadcasting Service

RICHARD R. SCHMALTZ 1
MANAGING DIRECTOR, DIRECTOR OF INVESTMENTS,
   J. & W. Seligman & Co. Incorporated
TRUSTEE EMERITUS, Colby College

ROBERT L. SHAFER 3, 4
RETIRED VICE PRESIDENT, Pfizer Inc.

JAMES N. WHITSON 2, 4
DIRECTOR AND CONSULTANT, Sammons Enterprises, Inc.
DIRECTOR, C-SPAN
DIRECTOR, CommScope, Inc.

BRIAN T. ZINO 1
PRESIDENT
PRESIDENT, J. & W. Seligman & Co. Incorporated
CHAIRMAN, Seligman Data Corp.
DIRECTOR, ICIMutual Insurance Company

DIRECTOR EMERITUS
Fred E. Brown
Director and Consultant, J. & W. SELIGMAN & CO.
  Incorporated

- ----------------
Member:  1 Executive Committee
         2 Audit Committee
         3 Director Nominating Committee
         4 Board Operations Committee


                                       81

<PAGE>

PROXY RESULTS

     Shareholders  of each Series voted on the following  proposals at a Special
Meeting  of  Shareholders  held on June 30,  1998,  in New York,  New York.  The
description  of each proposal and number of shares voted are stated  below.  The
shareholders of all five Series voted collectively in respect of the election of
Directors and the  ratification  of the selection of  independent  auditors.  In
respect of the proposals relating to the interim and new subadvisory agreements,
the shareholders of each Series voted separately. Each Director was elected, the
selection of Deloitte & Touche LLP as auditors was ratified, and the interim and
new subadvisory agreements were approved.


ELECTION OF DIRECTORS:

                                       For                  Withheld
                                      ----                 -----------
John R. Galvin                     105,497,129              1,987,168
Alice S. Ilchman                   105,505,135              1,979,161
Frank A. McPherson                 105,505,057              1,979,239
John E. Merow                      105,504,427              1,979,869
Betsy S. Michel                    105,501,319              1,982,977
William C. Morris                  105,508,287              1,976,009
James C. Pitney                    105,493,493              1,990,804
James Q. Riordan                   105,498,612              1,985,684
Richard R. Schmaltz                105,505,948              1,978,349
Robert L. Shafer                   105,504,103              1,980,194
James N. Whitson                   105,508,491              1,975,806
Brian T. Zino                      105,505,870              1,978,427

RATIFICATION OF DELOITTE & TOUCHE LLP AS AUDITORS:

<TABLE>
<CAPTION>
                                                             For           Against        Abstain
                                                            ----         -----------     ---------
<S>                                                      <C>               <C>         <C>
                                                         103,834,744        828,074     2,821,124

APPROVAL OF INTERIM SUBADVISORY AGREEMENTS
  BETWEEN J. & W. SELIGMAN & CO. INCORPORATED
  AND SELIGMAN HENDERSON CO.:

Seligman Henderson International Fund                      2,592,848          8,037       129,431
Seligman Henderson Emerging Markets Growth Fund            6,848,574        106,520       246,368
Seligman Henderson Global Growth Opportunites Fund        13,627,795        126,041       551,941
Seligman Henderson Global Smaller Companies Fund          42,166,124        466,464     1,501,383
Seligman Henderson Global Technology Fund                 36,921,480        535,865     1,655,339

APPROVAL OF NEW SUBADVISORY AGREEMENT
  BETWEEN J. & W. SELIGMAN & CO. INCORPORATED
  AND HENDERSON INVESTMENT MANAGEMENT LIMITED,
  EFFECTIVE JULY 1, 1998:

Seligman Henderson International Fund                      2,591,707          9,988       128,623
Seligman Henderson Emerging Markets Growth Fund            6,848,518        104,254       248,682
Seligman Henderson Global Growth Opportunites Fund        13,624,535        139,654       541,561
Seligman Henderson Global Smaller Companies Fund          42,320,799        466,271     1,346,898
Seligman Henderson Global Technology Fund                 36,895,609        551,029     1,666,034
</TABLE>

                                       82

<PAGE>

EXECUTIVE OFFICERS


WILLIAM C. MORRIS
CHAIRMAN

BRIAN T. ZINO
PRESIDENT

BRIAN ASHFORD-RUSSELL
VICE PRESIDENT

PETER BASSETT
VICE PRESIDENT

IAIN C. CLARK
VICE PRESIDENT

NITIN MEHTA
VICE PRESIDENT

ARSEN MRAKOVCIC
VICE PRESIDENT

MARION S. SCHULTHEIS
VICE PRESIDENT

LAWRENCE P. VOGEL
VICE PRESIDENT

PAUL H. WICK
VICE PRESIDENT

THOMAS G. ROSE
TREASURER

FRANK J. NASTA
SECRETARY


FOR MORE INFORMATION

MANAGER
J. & W. Seligman & Co. Incorporated
100 Park Avenue
New York, NY  10017

GENERAL COUNSEL
Sullivan & Cromwell

INDEPENDENT AUDITORS
Deloitte & Touche LLP

SUBADVISER
Henderson Investment
   Management Limited
3 Finsbury Avenue
London, EC2M 2PA
England

GENERAL DISTRIBUTOR
Seligman Advisors, Inc.
100 Park Avenue
New York, NY  10017

SHAREHOLDER SERVICE AGENT
Seligman Data Corp.
100 Park Avenue
New York, NY  10017

IMPORTANT TELEPHONE NUMBERS
(800) 221-2450      Shareholder Services
(800) 445-1777      Retirement
                    Plan Services
(212) 682-7600      Outside the United States

(800) 622-4597      24-Hour Automated Telephone Access Service


<PAGE>


GLOSSARY OF FINANCIAL TERMS


CAPITAL GAIN  DISTRIBUTION  -- A payment to mutual fund  shareholders of profits
realized on the sale of  securities  in a fund's  portfolio.  For tax  purposes,
these  profits may be taxed at different  rates,  primarily  depending  upon the
length of time the securities were owned by the fund.

CAPITAL APPRECIATION/DEPRECIATIOn -- An increase or decrease in the market value
of a mutual  fund's  portfolio  securities,  which is reflected in the net asset
value of the fund's shares. Capital  appreciation/depreciation  of an individual
security is in relation to the original purchase price.

COMPOUNDING -- The change in the value of an investment as shareholders  receive
earnings on their investment's earnings. For example, if $1,000 is invested at a
fixed rate of 7% a year, the initial  investment is worth $1,070 after one year.
If the  return is  compounded,  second  year  earnings  will not be based on the
original $1,000, but on the $1,070, which includes the first year's earnings.

CONTINGENT  DEFERRED  SALES  CHARGE  (CDSC) --  Depending on the class of shares
owned, a fee charged by a mutual fund when shares are sold back to the fund (the
CDSC expires after a fixed time period).

DIVIDEND  -- A payment by a mutual  fund,  usually  derived  from the fund's net
investment income (dividends and interest less expenses).

DIVIDEND  YIELD -- A  measurement  of a fund's  dividend as a percentage  of the
maximum offering price.

EXPENSE  RATIO -- The cost of doing  business for a mutual fund,  expressed as a
percent of the fund's net assets.

INVESTMENT   OBJECTIVE  --  The  shared  investment  goal  of  a  fund  and  its
shareholders.

MANAGEMENT FEE -- The amount paid by a mutual fund to its investment advisor(s).

MULTIPLE CLASSES OF SHARES -- Although an individual mutual fund invests in only
one portfolio of securities,  it may offer investors  several  purchase  options
which are "classes" of shares.  Multiple  classes permit  shareholders to choose
the fee structure that best meets their needs and goals.  Generally,  each class
will  differ  in  terms of how and  when  sales  charges  and  certain  fees are
assessed.

NATIONAL  ASSOCIATION OF SECURITIES  DEALERS,  INC. (NASD) -- A  self-regulatory
body with authority over firms that distribute mutual funds.

NET ASSET VALUE (NAV) PER SHARE -- The market worth of one fund share,  obtained
by adding a mutual  fund's  total  assets  (securities,  cash,  and any  accrued
earnings), subtracting liabilities, and dividing the resulting net assets by the
number of shares outstanding.

OFFERING  PRICE  (OP)  -- The  price  at  which a  mutual  fund's  share  can be
purchased.  The offering price per share is the current net asset value plus any
sales charge.

PORTFOLIO  TURNOVER  -- A measure of the  trading  activity  in a mutual  fund's
investment portfolio that reflects how often securities are bought and sold.

PROSPECTUS  -- The legal  document  describing a mutual fund to all  prospective
shareholders.  It contains  information  required by the Securities and Exchange
Commission (SEC), such as a fund's investment objective and policies,  services,
investment  restrictions,  officers  and  directors,  how  shares are bought and
redeemed, fund fees and other charges, and the fund's financial statements.

SEC YIELD -- SEC Yield refers to the net income earned by a fund during a recent
30-day  period.  This  income is  annualized  and then  divided  by the  maximum
offering  price per share on the last day of the  30-day  period.  The SEC Yield
formula reflects semiannual compounding.

SECURITIES  AND  EXCHANGE  COMMISSION  -- The  primary  US federal  agency  that
regulates the registration and distribution of mutual fund shares.

STATEMENT OF ADDITIONAL  INFORMATION -- Adocument that contains  updated or more
detailed  information  about an  investment  company  and that  supplements  the
prospectus. It is available at no charge upon request.

TOTAL RETURN -- A measure of a fund's  performance  encompassing all elements of
return.  Reflects  the change in share price over a given period and assumes all
distributions  are taken in  additional  fund shares.  The AVERAGE  ANNUAL TOTAL
RETURN  represents the average annual  compounded rate of return for the periods
presented.

YIELD ON  SECURITIES  -- For bonds,  the  current  yield is the  coupon  rate of
interest,  divided by the purchase price.  For stocks,  the yield is measured by
dividing dividends paid by the market price of the stock.


- -----------------
Adapted from the Investment Company Institute's 1998 MUTUAL FUND FACT BOOK.


                                       84

<PAGE>

BENCHMARKS


LIPPER EMERGING MARKETS FUNDS AVERAGE:*

This  average  is  comprised  of  mutual  funds  which  seek  long-term  capital
appreciation by investing at least 65% of total assets in emerging market equity
securities,  where "emerging market" is defined by a country's GNP per capita or
other  economic  measures.  This  average was  comprised  of 184 mutual funds at
October 31, 1998.

LIPPER INTERNATIONAL FUNDS AVERAGE:*

This  average is  comprised  of mutual funds which invest their assets in equity
securities  whose primary  trading  markets are outside the US. This average was
comprised of 574 mutual funds at October 31, 1998.

LIPPER GLOBAL FUNDS AVERAGE:*

This  average is  comprised  of mutual  funds which invest at least 25% of their
portfolios in equity securities traded outside the US, and may own US securities
as well. This average was comprised of 248 mutual funds at October 31, 1998.

LIPPER SCIENCE & TECHNOLOGY FUNDS AVERAGE:*

This  average is  comprised  of mutual  funds which  invest 65% of their  equity
portfolios in science and  technology  stocks.  This average was comprised of 82
mutual funds at October 31, 1998.

LIPPER GLOBAL SMALL CAP FUNDS AVERAGE:*

This  average is  comprised  of mutual  funds which invest at least 25% of their
portfolios in equity  securities  whose primary  trading markets are outside the
US, and which limit at least 65% of their  investments  to companies with market
capitalizations  less than US $1 billion at the time of  purchase.  This average
was comprised of 42 mutual funds at October 31, 1998.


MORGAN STANLEY CAPITAL INTERNATIONAL EAFE (EUROPE,
AUSTRALASIA, FAR EAST) INDEX (MSCIEAFE INDEX):

This is a market-capitalization-weighted  equity index comprised of 20 countries
and representing the developed stock markets outside North America.

MSCI WORLD INDEX:

This is a market-capitalization-weighted  equity index comprised of 22 countries
and representing the world's developed stock markets.

MSCI EMERGING MARKETS FREE INDEX:

This is a market-capitalization-weighted  equity index comprised of 26 countries
and representing the investment  opportunities in the developing world available
to foreign investors.

SALOMON SMITH BARNEY EXTENDED MARKET INDEX WORLD:

This index represents the small-capitalization  stock universe. It comprises the
bottom 20% of the  available  capital of each  country  included  in the Salomon
Smith Barney World Broad Market Index (BMI), and includes 75% of the BMI issues.
The BMI universe  covers 22 countries  and includes  listed  shares of companies
with a total available market capitalization of at least the local equivalent of
US $100 million.


- -------------------

*    Lipper  Analytical  Services Inc.  calculates the Averages  monthly.  These
     monthly results are used to determine each Average's performance versus the
     total returns for each fund.  Adapted from materials from LIPPER ANALYTICAL
     SERVICES INC.,  MORGAN  STANLEY  CAPITAL  INTERNATIONAL,  and SALOMON SMITH
     BARNEY INCORPORATED.


<PAGE>

 THIS REPORT IS INTENDED ONLY FOR THE INFORMATION OF SHAREHOLDERS OR THOSE WHO
   HAVE RECEIVED THE OFFERING PROSPECTUS COVERING SHARES OF CAPITAL STOCK OF
    SELIGMAN HENDERSON GLOBAL FUND SERIES, INC., WHICH CONTAINS INFORMATION
   ABOUT THE SALES CHARGES, MANAGMENT FEES, AND OTHER COSTS. PLEASE READ THE
            PROSPECTUS CAREFULLY BEFORE INVESTING OR SENDING MONEY.



                            SELIGMAN ADVISORS, INC.
                                AN AFFILIATE OF

                                     [LOGO]

                              J.&W. SELIGMAN & CO.
                                  INCORPORATED
                                ESTABLISHED 1864
                       100 PARK AVENUE, NEW YORK, NY 10017




EQSH2 10/98                          [RECYCLE LOGO] Printed on Recycled Paper

<PAGE>

                                                               File No. 33-44186
                                                                        811-6485

PART C.  OTHER INFORMATION

Item 23.   Exhibits.

   
     All Exhibits have been previously  filed and are  incorporated by reference
herein, except Exhibits marked with an asterisk (*) which are filed herewith.

(a)      *Articles of Amendment and Restatement of Articles of  Incorporation of
         Registrant.
    

(b)      Amended  and   Restated   By-Laws.   (Incorporated   by   reference  to
         Registrant's  Post-Effective  Amendment  No. 23,  filed on February 27,
         1997.)

(c)      Specimen Stock Certificates for Class A and Class D Shares with respect
         to Seligman Henderson International Fund. (Incorporated by reference to
         Exhibit 4 of Registrant's Post-Effective Amendment No. 6 filed on April
         23,  1993  and  Registrant's  Post-Effective  Amendment  No. 8 filed on
         September 21, 1993.) Specimen Stock Certificate for Class B Shares with
         respect to Seligman  Henderson  International  Fund.  (Incorporated  by
         reference to Registrant's Form SE filed on April 16, 1996.)

(c)(1)   Specimen Stock Certificates for Class A and Class D Shares with respect
         to Seligman Henderson Global Smaller Companies Fund (formerly, Seligman
         Henderson Global Emerging  Companies Fund).  (Incorporated by reference
         to Exhibit 4a to Registrant's  Post-Effective Amendment No. 10 filed on
         August 10, 1992.)  Specimen Stock  Certificate  for Class B Shares with
         respect  to  Seligman   Henderson   Global  Smaller   Companies   Fund.
         (Incorporated  by reference to Registrant's  Form SE filed on April 16,
         1996.)

(c)(2)   Specimen Stock Certificates for Class A and Class D Shares with respect
         to  Seligman   Henderson  Global  Technology  Fund.   (Incorporated  by
         reference to Exhibit 4b of  Registrant's  Post-Effective  Amendment No.
         11, filed on May 10,  1994.)  Specimen  Stock  Certificate  for Class B
         Shares  with  respect to Seligman  Henderson  Global  Technology  Fund.
         (Incorporated  by reference to Registrant's  Form SE filed on April 16,
         1996.)

(c)(3)   Specimen Stock Certificates for Class A and Class D Shares with respect
         to Seligman Henderson Global Growth  Opportunities Fund.  (Incorporated
         by  reference  to  Registrant's  Form SE filed on  October  30,  1995.)
         Specimen Stock  Certificate for Class B Shares with respect to Seligman
         Henderson Global Growth Opportunities Fund.  (Incorporated by reference
         to Registrant's Form SE filed on April 16, 1996.)

(c)(4)   Specimen  Stock  Certificates  for Class A,  Class B and Class D Shares
         with  respect to  Seligman  Henderson  Emerging  Markets  Growth  Fund.
         (Incorporated  by reference to  Registrant's  Form SE, filed on May 15,
         1996.)

(c)(5)   Additional  rights of security  holders are set forth in Article  FIFTH
         and SEVENTH of the Registrant's  Articles of Incorporation and Articles
         I  and  IV of  Registrant's  By-Laws.  (Incorporated  by  reference  to
         Exhibits  1  and  2,  respectively,   to  Registrant's   Post-Effective
         Amendment No. 23, filed on February 27, 1997.)

(d)      Revised  Management  Agreement  between  the  Registrant  and  J.  & W.
         Seligman & Co. Incorporated. (Incorporated by reference to Registrant's
         Post-Effective Amendment No. 21, filed on May 20, 1996.)

   
(d)(1)   Subadvisory  Agreement  between the Manager  and  Henderson  Investment
         Management   Limited.   (Incorporated   by  reference  to  Registrant's
         Post-Effective Amendment No. 25 filed on February 26, 1998.)
    

(e)      Distributing  Agreement  between the Registrant and Seligman  Advisors,
         Inc.  (formerly,  Seligman Financial  Services,  Inc.) (Incorporated by
         reference to Exhibit 6 of Registrant's Post-Effective Amendment No. 17,
         filed on October 27, 1995.)



<PAGE>

                                                               File No. 33-44186
                                                                        811-6485

PART C. OTHER INFORMATION (continued)

(e)(1)   Sales Agreement between Seligman  Advisors,  Inc.  (formerly,  Seligman
         Financial  Services,  Inc.) and Dealers.  (Incorporated by reference to
         Registrant's Post-Effective Amendment No. 20, filed on April 19, 1996.)

(e)(2)   Form of Sales Agreement  between  Seligman  Advisors,  Inc.  (formerly,
         Seligman  Financial  Services,  Inc. ) and Dean Witter  Reynolds,  Inc.
         (Incorporated by reference to Exhibit 6b of Registrant's Post-Effective
         Amendment No. 53  (Registration  Statement No.  2-33566) filed on April
         28, 1997.)

(e)(3)   Form of Sales Agreement  between  Seligman  Advisors,  Inc.  (formerly,
         Seligman Financial Services,  Inc.) and Dean Witter Reynolds, Inc. with
         respect to certain Chilean  institutional  investors.  (Incorporated by
         reference to Exhibit 6c of Registrant's Post-Effective Amendment No. 53
         (Registration Statement No. 2-33566), filed on April 28, 1997.)

(e)(4)   Form of Dealer Agreement  between Seligman  Advisors,  Inc.  (formerly,
         Seligman Financial Services,  Inc.) and Smith Barney Inc. (Incorporated
         by reference to Exhibit 6d of Registrant's Post-Effective Amendment No.
         53 (Registration Statement No. 2-33566) filed on April 28, 1997.)

(f)      Matched  Accumulation  Plan  of J. & W.  Seligman  & Co.  Incorporated.
         (Incorporated by reference to Exhibit 7 of Registrant's  Post-Effective
         Amendment No. 21 (Registration  Statement No. 2-92487) filed on January
         29, 1997.)

   
(f)(1)   *Amended Deferred Compensation Plan for Directors.
    

(f)(2)   Deferred Compensation Plan for Directors. (Incorporated by reference to
         Registrant's  Post-Effective  Amendment No. 21 (Registration  Statement
         No. 2-92487) filed on January 29, 1997.)

(g)      Custody  Agreement,  dated May 1, 1996,  between  Registrant  and Chase
         Manhattan Bank. (Incorporated by reference to Exhibit 8 of Registrant's
         Post-Effective Amendment No. 22 filed on November 20, 1996.)

(h)      Recordkeeping  Agreement  between  Registrant  and Investors  Fiduciary
         Trust   Company.    (Incorporated    by   reference   to   Registrant's
         Post-Effective Amendment No. 23, filed on February 27, 1997.)

(i)(1)   Opinion  and  Consent  of Counsel  on behalf of  Registrant's  Seligman
         Henderson   International   Fund.   (Incorporated   by   reference   to
         Registrant's  Post-Effective  Amendment  No. 23,  filed on February 27,
         1997.)

(i)(2)   Opinon  and  Consent  of  Counsel  on behalf of  Registrant's  Seligman
         Henderson  Emerging Markets Growth Fund.  (Incorporated by reference to
         Registrant's Post-Effective Amendment No. 21 filed on May 20, 1996.)

(i)(3)   Opinion  and  Consent  of Counsel  on behalf of  Registrant's  Seligman
         Henderson Global Growth Opportunities Fund.  (Incorporated by reference
         to  Registrant's  Post-Effective  Amendment No. 17 filed on October 27,
         1995.)

   
(i)(4)   *Opinion  and  Consent of Counsel  on behalf of  Registrant's  Seligman
         Henderson Global Technology Fund.

(j)      *Consent of Independent Auditors.
    

(k)      Not applicable.

(l)      Form of Purchase  Agreement for Initial  Capital  between  Registrant's
         Seligman Henderson  International Fund's Class A and Class D Shares and
         J. & W.  Seligman & Co.  Incorporated.  (Incorporated  by  reference to
         Registrant's  Post-Effective  Amendment  No. 23 filed on  February  27,
         1997.)  Form  of  Purchase   Agreement  for  Initial   Capital  between
         Registrant's Seligman Henderson International Fund's Class B shares and
         J. & W.  Seligman & Co.  Incorporated.  (Incorporated  by  reference to
         Exhibit 13a of  Registrant's  Post-Effective  Amendment No. 20 filed on
         April 19, 1996.)



<PAGE>

                                                               File No. 33-44186
                                                                        811-6485

PART C.    OTHER INFORMATION (continued)

(l)(1)   Form of Purchase  Agreement for Initial  Capital  between  Registrant's
         Seligman  Henderson Global Smaller  Companies Fund's Class D Shares and
         J. & W.  Seligman & Co.  Incorporated.  (Incorporated  by  reference to
         Registrant's  Post-Effective  Amendment  No. 23 filed on  February  27,
         1997.)  Form  of  Purchase   Agreement  for  Initial   Capital  between
         Registrant's Seligman Henderson Global Smaller Companies Fund's Class B
         shares  and J.  & W.  Seligman  & Co.  Incorporated.  (Incorporated  by
         reference to Exhibit 13b of Registrant's  Post-Effective  Amendment No.
         20 filed on April 19, 1996.)

(l)(2)   Form of Purchase  Agreement for Initial  Capital  between  Registrant's
         Seligman Henderson Global Technology Fund's Class A and D Shares and J.
         & W.  Seligman  &  Co.  Incorporated.  (Incorporated  by  reference  to
         Registrant's  Post-Effective  Amendment  No. 23,  filed on February 27,
         1997.)  Form  of  Purchase   Agreement  for  Initial   Capital  between
         Registrant's Seligman Henderson Global Technology Fund's Class B shares
         and J. & W. Seligman & Co. Incorporated.  (Incorporated by reference to
         Exhibit 13c of Registrant's  Post-Effective  Amendment No. 20, filed on
         April 19, 1996.)

(l)(3)   Form of Purchase  Agreement for Initial  Capital  between  Registrant's
         Seligman  Henderson Global Growth  Opportunities  Fund's Class B shares
         and J. & W. Seligman & Co. Incorporated.  (Incorporated by reference to
         Exhibit 13d of Registrant's Post-Effective Amendment No. 20 filed April
         19, 1996.)

(l)(4)   Copy of Purchase  Agreement for Initial  Capital  between  Registrant's
         Seligman  Henderson  Emerging  Markets Growth Fund Class A, Class B and
         Class D Shares and J. & W. Seligman & Co.  Incorporated.  (Incorporated
         by reference to Registrant's  Post-Effective Amendment No. 21, filed on
         May 20, 1996.)

(m)      Administration, Shareholder Services and Distribution Plans for each of
         Seligman  Henderson   International  Fund,  Seligman  Henderson  Global
         Smaller Companies Fund,  Seligman  Henderson Global Technology Fund and
         Seligman Henderson Global Growth Opportunities Fund and Amended Form of
         Administration,  Shareholder  Services  and  Distribution  Agreement of
         Registrant.  (Incorporated  by reference to Exhibit 15 of  Registrant's
         Post-Effective Amendment No. 20 filed April 19, 1996.)

(m)(1)   Administration, Shareholder Services and Distribution Plan with respect
         to  Registrant's  Seligman  Henderson  Emerging  Markets  Growth  Fund.
         (Incorporated by reference to Registrant's Post-Effective Amendment No.
         21 filed on May 20, 1996.)

   
(n)      *Financial Data Schedules.
    

(o)      Copy of  Multi-class  Plan entered into by Registrant  pursuant to Rule
         18f-3  under  the  Investment  Company  Act of 1940.  (Incorporated  by
         reference to Exhibit 18 of Registrant's Post-Effective Amendment No. 19
         filed on March 5, 1996.)

   
Other Exhibits:  Powers of Attorney.  (Incorporated by reference to Registrant's
                 Post-Effective Amendment No. 25 filed on February 26, 1998.)
    

Item 24.  Persons Controlled by or Under Common Control with Registrant. None.



<PAGE>

                                                               File No. 33-44186
                                                                        811-6485

PART C.   OTHER INFORMATION (continued)

Item 25.  Indemnification.  Reference  is made  to the  provisions  of  Articles
          Twelfth and Thirteenth of Registrant's  Amended and Restated  Articles
          of  Incorporation  filed  as  Exhibit  24(b)(1)  and  Article  VII  of
          Registrant's Amended and Restated By-laws filed as Exhibit 24(b)(2) to
          Registrant's  Post-Effective  Amendment  No.  23 to  the  Registration
          Statement.

          Insofar  as   indemnification   for  liabilities   arising  under  the
          Securities  Act of 1933 may be  permitted to  directors,  officers and
          controlling  persons  of the  registrant  pursuant  to  the  foregoing
          provisions,  or  otherwise,  the  registrant  has been  advised by the
          Securities and Exchange  Commission  such  indemnification  is against
          public   policy   as   expressed   in  the  Act  and  is,   therefore,
          unenforceable.  In the event that a claim for indemnification  against
          such liabilities (other than the payment by the registrant of expenses
          incurred or paid by a director,  officer or controlling  person of the
          registrant  in  the  successful   defense  of  any  action,   suit  or
          proceeding)  is  asserted  by such  director,  officer or  controlling
          person  in  connection  with  the  securities  being  registered,  the
          registrant  will,  unless in the opinion of its counsel the matter has
          been  settled  by  controlling   precedent,   submit  to  a  court  of
          appropriate  jurisdiction the question whether such indemnification by
          it is  against  public  policy  as  expressed  in the Act and  will be
          governed by the final adjudication of such issue.

Item 26.  Business and Other Connections of Investment Adviser. J. & W. Seligman
          & Co.  Incorporated (the "Manager") also serves as investment  manager
          to 17 other associated investment companies. They are Seligman Capital
          Fund, Inc., Seligman Cash Management Fund, Inc., Seligman Common Stock
          Fund,  Inc.,  Seligman  Communications  and  Information  Fund,  Inc.,
          Seligman  Frontier Fund, Inc.,  Seligman Growth Fund,  Inc.,  Seligman
          High  Income  Fund  Series,   Seligman  Income  Fund,  Inc.,  Seligman
          Municipal Fund Series, Inc., Seligman Municipal Series Trust, Seligman
          New Jersey Municipal Fund, Inc., Seligman Pennsylvania  Municipal Fund
          Series,  Seligman  Portfolios,  Inc., Seligman Quality Municipal Fund,
          Inc.,  Seligman  Select  Municipal  Fund,  Inc.,  Seligman  Value Fund
          Series, Inc. and Tri-Continental Corporation.

          Henderson Investment Management Limited (the "Subadviser") also serves
          as Subadviser to Seligman Portfolios,  Inc. with respect to its Global
          Portfolio,  Global  Smaller  Companies  Portfolio,  Global  Technology
          Portfolio and Global Growth Opportunities Portfolio.

          The Manager and Subadviser  each have an investment  advisory  service
          division  which  provides  investment  management or advice to private
          clients.  The list  required by this Item 26 of officers and directors
          of  the  Manager  and  the  Subadviser,  respectively,  together  with
          information  as  to  any  other  business,  profession,   vocation  or
          employment  of a  substantial  nature  engaged in by such officers and
          directors  during the past two years,  is incorporated by reference to
          Schedules  A  and  D of  Form  ADV,  filed  by  the  Manager  and  the
          Subadviser,  respectively,  pursuant to the Investment Advisers Act of
          1940 (SEC File Nos.  801-15798 and 801-55577)  filed on March 25, 1998
          and October 15, 1998, respectively.

Item 27.  Principal Underwriters.

     (a)  The names of each  investment  company (other than the Registrant) for
          which  Registrant's   principal  underwriter  currently   distributing
          securities  of the  Registrant  also acts as a principal  underwriter,
          depositor or investment  adviser follow:  Seligman Capital Fund, Inc.,
          Seligman Cash Management Fund, Inc., Seligman Common Stock Fund, Inc.,
          Seligman  Communications and Information Fund, Inc., Seligman Frontier
          Fund,  Inc.,  Seligman  Growth Fund,  Inc.,  Seligman High Income Fund
          Series,  Seligman Income Fund, Inc.,  Seligman  Municipal Fund Series,
          Inc.,  Seligman Municipal Series Trust,  Seligman New Jersey Municipal
          Fund,  Inc.,  Seligman  Pennsylvania  Municipal Fund Series,  Seligman
          Portfolios, Inc. and Seligman Value Fund Series, Inc.



<PAGE>

                                                               File No. 33-44186
                                                                        811-6485

PART C.   OTHER INFORMATION (continued)

     (b)  Name of each director,  officer or partner of  Registrant's  principal
          underwriter named in response to Item 20:

   
                             Seligman Advisors, Inc.
                             As of January 31, 1999
    

<TABLE>
<CAPTION>
         (1)                                           (2)                                       (3)
Name and Principal                          Positions and Offices                         Positions and Offices
Business Address                            with Underwriter                              with Registrant
- ----------------                            ----------------                              ---------------
<S>                                         <C>                                           <C>
William C. Morris*                          Director                                      Chairman of the
                                                                                          Board and Chief
                                                                                          Executive Officer
Brian T. Zino*                              Director                                      President and Director
Ronald T. Schroeder*                        Director                                      None
Fred E. Brown*                              Director                                      Director Emeritus
William H. Hazen*                           Director                                      None
Thomas G. Moles*                            Director                                      None
David F. Stein*                             Director                                      None
Stephen J. Hodgdon*                         President and Director                        None
Charles W. Kadlec*                          Chief Investment Strategist                   None
Lawrence P. Vogel*                          Senior Vice President, Finance                Vice President
   
Edward F. Lynch*                            Senior Vice President, National               None
                                            Sales Director
    
James R. Besher                             Senior Vice President, Divisional             None
14000 Margaux Lane                          Sales Director
Town & Country, MO  63017
Gerald I. Cetrulo, III                      Senior Vice President, Sales                  None
140 West Parkway
Pompton Plains, NJ  07444
Jonathan G. Evans                           Senior Vice President, Sales                  None
222 Fairmont Way
Ft. Lauderdale, FL  33326
T. Wayne Knowles                            Senior Vice President,                        None
104 Morninghills Court                      Divisional Sales Director
Cary, NC  27511
Joseph Lam                                  Senior Vice President, Regional               None
Seligman International Inc.                 Director, Asia
Suite 1133, Central Building
One Pedder Street
Central Hong Kong
Bradley W. Larson                           Senior Vice President, Sales                  None
367 Bryan Drive
Alamo, CA  94526
Richard M. Potocki                          Senior Vice President, Regional               None
Seligman International UK Limited           Director, Europe and the Middle East
Berkeley Square House 2nd Floor
Berkeley Square
London, United Kingdom W1X 6EA
Bruce M. Tuckey                             Senior Vice President, Sales                  None
41644 Chathman Drive
Novi, MI  48375
Andrew S. Veasey                            Senior Vice President, Sales                  None
14 Woodside
Rumson, NJ  07760
J. Brereton Young*                          Senior Vice President, National               None
                                            Accounts Manager
</TABLE>



<PAGE>

                                                               File No. 33-44186
                                                                        811-6485

PART C.  OTHER INFORMATION (continued)

   
                             Seligman Advisors, Inc.
                             As of January 31, 1999
    

<TABLE>
<CAPTION>
         (1)                                           (2)                                       (3)
Name and Principal                          Positions and Offices                         Positions and Offices
Business Address                            with Underwriter                              with Registrant
- ----------------                            ----------------                              ---------------
<S>                                         <C>                                           <C>
Peter J. Campagna                           Vice President, Regional Retirement           None
1130 Green Meadow Court                     Plans Manager
Acworth, GA  30102
   
Matthew A. Digan*                           Senior Vice President, Director of            None
                                            Mutual Fund Marketing
    
Mason S. Flinn                              Vice President, Regional Retirement           None
159 Varennes                                Plans Manager
San Francisco, CA  94133
   
Robert T. Hausler*                          Senior Vice President, Senior                 None
                                            Portfolio Specialist
    
Marsha E. Jacoby*                           Vice President, Offshore Business             None
                                            Manager
William W. Johnson*                         Vice President, Order Desk                    None
   
Michelle L. McCann (Rappa)*                 Senior Vice President, Director of            None
                                            Retirement Plans
Scott H. Novak*                             Senior Vice President, Insurance              None
    
Ronald W. Pond*                             Vice President, Portfolio Advisor             None
   
Tracy A. Salomon*                           Vice President, Retirement Marketing          None
    
Michael R. Sanders*                         Vice President, Product Manager               None
                                            Managed Money Services
Helen Simon*                                Vice President, Sales                         None
                                            Administration Manager
Gary A. Terpening*                          Vice President, Director of Business          None
                                            Development
   
Charles L. von Breitenbach, II*             Senior Vice President, Director of            None
                                            Managed Money Services
    
Joan M. O'Connell                           Vice President, Regional Retirement           None
3707 5th Avenue #136                        Plans Manager
San Diego, CA  92103
Charles E. Wenzel                           Vice President, Regional Retirement           None
703 Greenwood Road                          Plans Manager
Wilmington, DE  19807
   
Jeffery C. Pleet*                           Vice President, Regional Retirement           None
                                            Plans Manager
    
Richard B. Callaghan                        Regional Vice President                       None
7821 Dakota Lane
Orland Park, IL  60462
Bradford C. Davis                           Regional Vice President                       None
255 4th Avenue, #2
Kirkland, WA  98033
Christopher J. Derry                        Regional Vice President                       None
2380 Mt. Lebanon Church Road
Alvaton, KY  42122
Kenneth Dougherty                           Regional Vice President                       None
8640 Finlarig Drive
Dublin, OH  43017
Edward S. Finocchiaro                       Regional Vice President                       None
120 Screenhouse Lane
Duxbury, MA  02332
</TABLE>



<PAGE>

                                                               File No. 33-44186
                                                                        811-6485

PART C.  OTHER INFORMATION (continued)

   
                             Seligman Advisors, Inc.
                             As of January 31, 1999
    

<TABLE>
<CAPTION>
         (1)                                           (2)                                       (3)
Name and Principal                          Positions and Offices                         Positions and Offices
Business Address                            with Underwriter                              with Registrant
- ----------------                            ----------------                              ---------------
<S>                                         <C>                                           <C>
Michael C. Forgea                           Regional Vice President                       None
32 W. Anapamu Street # 186
Santa Barbara, CA  93101
David L. Gardner                            Regional Vice President                       None
2504 Clublake Trail
McKinney, TX  75070
Carla A. Goehring                           Regional Vice President                       None
11426 Long Pine
Houston, TX  77077
Michael K. Lewallen                         Regional Vice President                       None
908 Tulip Poplar Lane
Birmingham, AL  35244
Judith L. Lyon                              Regional Vice President                       None
163 Haynes Bridge Road, Ste 205
Alpharetta, CA  30201
Stephen A. Mikez                            Regional Vice President                       None
11786 E. Charter Oak
Scottsdale, AZ  85259
Tim O'Connell                               Regional Vice President                       None
14872 Summerbreeze Way
San Diego, CA  92128
Thomas Parnell                              Regional Vice President                       None
5250 Greystone Drive  #107
Inver Grove Heights, MN  55077
       
Nicholas Roberts                            Regional Vice President                       None
200 Broad Street, Apt. 2225
Stamford, CT  06901
Diane H. Snowden                            Regional Vice President                       None
11 Thackery Lane
Cherry Hill, NJ  08003
   
Craig Prichard                              Regional Vice President                       None
300 Spyglass Drive
Fairlawn, OH  44333
Steven C. Wilson                            Regional Vice President                       None
83 Kaydeross Park Road
Saratoga Springs, NY  12866
Eugene P. Sullivan                          Regional Vice President                       None
8 Charles Street, Apt. 603
Baltimore, MD  21201
    
Kelli A. Wirth Dumser                       Regional Vice President                       None
8618 Hornwood Court
Charlotte, NC  28215
Frank J. Nasta*                             Secretary                                     Secretary
Aurelia Lacsamana*                          Treasurer                                     None
   
Jeffrey S. Dean*                            Vice President, Business Analyst              None
    
Sandra G. Floris*                           Assistant Vice President, Order Desk          None
Keith Landry*                               Assistant Vice President, Order Desk          None
Gail S. Cushing*                            Assistant Vice President, National            None
                                            Accounts Manager
</TABLE>



<PAGE>

                                                               File No. 33-44186
                                                                        811-6485

PART C.  OTHER INFORMATION (continued)

   
                             Seligman Advisors, Inc.
                             As of January 31, 1999
    

<TABLE>
<CAPTION>
         (1)                                           (2)                                       (3)
Name and Principal                          Positions and Offices                         Positions and Offices
Business Address                            with Underwriter                              with Registrant
- ----------------                            ----------------                              ---------------
<S>                                         <C>                                           <C>
Albert A. Pisano*                           Assistant Vice President and                  None
                                            Compliance Officer
Jack Talvy*                                 Assistant Vice President, Internal            None
                                            Marketing Services Manager
Joyce Peress*                               Assistant Secretary                           Assistant Secretary
</TABLE>

*    The principal  business  address of each of these directors and/or officers
     is 100 Park Avenue, New York, NY 10017.

     (c)  Not applicable.

Item 28.  Location  of  Accounts  and  Records.  The  accounts,  books and other
          documents required to be maintained by Section 31(a) of the Investment
          Company  Act of 1940 and the  Rules  (17 CFR  270.31(a)-1  to  31(a)-3
          promulgated  thereunder  are  maintained  by J.  & W.  Seligman  & Co.
          Incorporated located at 100 Park Avenue, New York, NY 10017 and at the
          following  locations:  (1)  Custodian for the Funds:  Chase  Manhattan
          Bank, 1 Pierrepont Plaza,  Brooklyn, New York 11201; (2) Recordkeeping
          Agent  for  the  Funds:   Investors   Fiduciary  Trust  Company,   801
          Pennsylvania,   Kansas  City,   Missouri  64105;  and,  (3)  Transfer,
          Redemption and Other Shareholder Account Services for the Funds: Agent
          Seligman Data Corp., 100 Park Avenue, New York, NY 10017.

Item 29.  Management Services. Not Applicable.

Item 30.  Undertakings.   Registrant  undertakes:  (1)  to  furnish  a  copy  of
          Registrant's latest annual report, upon request and without charge, to
          every person to whom a prospectus is  delivered,  and (2) if requested
          to do so by the holders of at least 10% of its outstanding  shares, to
          call a meeting of  shareholders  for the  purpose  of voting  upon the
          removal of a director  or  directors  and to assist in  communications
          with other shareholders as required by Section 16(c) of the Investment
          Company Act of 1940.



<PAGE>

                                                               File No. 33-44186
                                                                        811-6485

                                   SIGNATURES
   
     Pursuant  to the  requirements  of the  Securities  Act of  1933,  and  the
Investment  Company Act of 1940,  the Registrant has certifies that it meets all
of the requirements for  effectiveness of this  Post-Effective  Amendment No. 27
pursuant to Rule 485(b)  under the  Securities  Act of 1933 and duly caused this
Post-Effective  Amendment No. 27 to its  Registration  Statement to be signed on
its behalf by the  undersigned,  thereunto duly  authorized,  in the City of New
York, State of New York, on the 26th day of February, 1999.



                                     SELIGMAN HENDERSON GLOBAL FUND SERIES, INC.
    



                                     By: /s/ William C. Morris
                                     ------------------------------
                                     William C. Morris, Chairman

   
     Pursuant  to  the  requirements  of the  Securities  Act of  1933  and  the
Investment  Company Act of 1940,  this  Post-Effective  Amendment  No. 27 to its
Registration  Statement  has been signed below by the  following  persons in the
capacities indicated on February 26, 1999.
    

 Signature                           Title
 ---------                           -----

/s/ Brian T. Zino
- -----------------------------        Chairman of the Board (Principal
William C. Morris*                   executive officer) and Director


/s/ Brian T. Zino                    President and Director
- -----------------------------        
Brian T. Zino


/s/ Brian T. Zino                    Treasurer (Principal financial and
- -----------------------------        and accounting officer)
Thomas G. Rose




John R. Galvin, Director           )
Alice S. Ilchman, Director         )
Frank A. McPherson, Director       )
John E. Merow, Director            )        /s/ Brian T. Zino
Betsy S. Michel, Director          )        ------------------------------------
James C. Pitney, Director          )            Brian T. Zino, Attorney-in-fact*
James Q. Riordan, Director         )
Richard R. Schmaltz, Director      )
Robert L. Shafer, Director         )
James N. Whitson, Director         )



<PAGE>

                                                               File No. 33-44186
                                                                        811-6485

   
                   SELIGMAN HENDERSON GLOBAL FUND SERIES, INC.
                     Post-Effective Amendment No. 27 to the
                       Registration Statement on Form N-1A
    


                                  EXHIBIT INDEX



Form N-1A
 Item No.                                 Description
 --------                                 -----------

   
23(a)         Articles of Amendment and Restatement of Articles of Incorporation

23(f)(1)      Amended Deferred Compensation Plan

23(i)(4)      Opinion and Consent of Counsel on behalf of Global Technology Fund

23(j)         Consent of Independent Auditors

23(n)         Financial Data Schedules
    



[The text of this Exhibit is a composite restatement of all charter documents of
the Registrant  currently on file with the State  Department of Assessments  and
Taxation  of the State of  Maryland  (the  "Filed  Documents").  For  clarity of
presentation, each of the Seligman International Equity Fund Class, the Seligman
Emerging Markets Fund Class, the Seligman Global Growth Fund Class, the Seligman
Global Smaller  Companies  Fund Class and the Seligman  Global  Technology  Fund
Class is referred  to in this  restatement  as a "Series"  although in the Filed
Documents each is referred to as a "Class".]


                      ARTICLES OF AMENDMENT AND RESTATEMENT

                                       of

                            ARTICLES OF INCORPORATION

                                       of

                        SELIGMAN GLOBAL FUND SERIES, INC.


     FIRST: I, the subscriber,  Linda A. Mahon, whose post office address is 130
Liberty Street,  New York, New York 10006,  being more than 18 years of age, do,
under and by virtue of the General Laws of the State of Maryland authorizing the
formation of corporations, form a corporation.

     SECOND:  Name. The name of the corporation (which is hereinafter called the
"Corporation") is

                        SELIGMAN GLOBAL FUND SERIES, INC.

     THIRD:  Purposes  and Powers.  The purposes  for which the  Corporation  is
formed and the  business  or objects to be carried on or  promoted  by it are to
engage in the business of an investment company, and in connection therewith, to
hold part or all of its funds in cash,  to  acquire by  purchase,  subscription,
contract,  exchange or  otherwise,  and to own, hold for  investment,  resale or
otherwise, sell, assign, negotiate,  exchange, transfer or otherwise dispose of,
or turn to account or realize upon, and generally to deal in and with, all forms
of stocks,  bonds,  debentures,  notes,  evidences  of  interest,  evidences  of
indebtedness,   warrants,   certificates  of  deposit,   bankers'   acceptances,
repurchase  agreements,  options on securities and other  securities,  commodity
futures  contracts and options thereon,  irrespective of their form, the name by
which they may be  described,  or the character or form of the entities by which
they are issued or created (hereinafter  sometimes called "Securities"),  and to
make  payment  therefor by any lawful  means;  to  exercise  any and all rights,
powers and privileges of individual  ownership or interest in respect of any and
all such  Securities,  including  the right to vote  thereon  and to consent and
otherwise  act with respect  thereto;  to do any and all acts and things for the
preservation,  protection,  improvement  and enhancement in value of any and all
such  Securities;  to acquire or become  interested  in any such  Securities  as
aforesaid,  irrespective  of  whether  or not such  Securities  be fully paid or
subject to further  payments,  and to make payments  thereon as called for or in
advance of calls or otherwise;



<PAGE>

     And, in general,  to do any or all such other things in connection with the
objects and purposes of the Corporation  hereinbefore  set forth, as are, in the
opinion of the Board of Directors  of the  Corporation,  necessary,  incidental,
relative or conducive to the attainment of such objects and purposes;  and to do
such acts and things; and to exercise any and all such powers to the same extent
authorized  or  permitted  to a  Corporation  under  any laws that may be now or
hereafter applicable or available to the Corporation.

     In addition,  the Corporation may issue,  sell,  acquire through  purchase,
exchange,  or otherwise hold,  dispose of, resell,  transfer,  reissue or cancel
shares of its  capital  stock in any manner  and to the extent now or  hereafter
permitted by the laws of Maryland and by these Articles of Incorporation.

     The  foregoing  matters  shall each be construed  as purposes,  objects and
powers,  and none of such matters  shall be in any wise limited by reference to,
or  inference  from,  any other of such  matters  or any other  Article of these
Articles  of  Incorporation,  but shall be  regarded  as  independent  purposes,
objects and powers and the enumeration of specific purposes,  objects and powers
shall not be construed to limit or restrict in any manner the meaning of general
terms or the general powers of the Corporation now or hereafter conferred by the
laws of the State of Maryland,  nor shall the  expression of one thing be deemed
to exclude another, although it be of like nature, not expressed.

     Nothing herein  contained  shall be construed as giving the Corporation any
rights, powers or privileges not permitted to it by law.

     FOURTH:  Principal Office.  The post office address of the principal office
of the Corporation in this State is c/o The Corporation Trust  Incorporated,  32
South Street,  Baltimore,  Maryland 21202. The resident agent of the Corporation
is The Corporation  Trust  Incorporated,  the post office address of which is 32
South Street, Baltimore, Maryland 21202. Said resident agent is a Corporation of
the State of Maryland.

     FIFTH: Capital Stock. A. The total number of shares of all classes of stock
which the Corporation has authority to issue is  2,000,000,000  shares of common
stock ("Shares") of the par value of $.001 each having an aggregate par value of
$2,000,000.00. The Shares shall initially constitute five series known as:

  "Seligman International Equity Fund Class", consisting of 400,000,000 shares;

    "Seligman Emerging Markets Fund Class", consisting of 400,000,000 shares;

     "Seligman Global Growth Fund Class", consisting of 400,000,000 shares;

                 "Seligman Global Smaller Companies Fund Class",
                      consisting of 400,000,000 shares; and

    "Seligman Global Technology Fund Class", consisting of 400,000,000 shares

(such five series,  together with any further series of Shares from time to time
created by the Board of Directors,  being herein  referred to as "Series").  The
Board of  Directors  of the  Corporation  shall have the power and  authority to
further  classify or reclassify any unissued shares from time to time by setting

                                                                               2

<PAGE>

or  changing  the  preferences,  conversion  or  other  rights,  voting  powers,
restrictions,   limitations  as  to  dividends,   qualifications,  or  terms  or
conditions  of  redemption  of such  unissued  Shares.  Upon the creation of any
further series,  the Board of Directors shall,  for purposes of  identification,
also have the power and  authority to  designate a name for the existing  series
that includes issued Shares of Common Stock.

     B. A description of the relative preferences,  conversion and other rights,
voting powers,  restrictions,  limitations as to dividends,  qualifications  and
terms and conditions of redemption of all Series of Shares is as follows, unless
otherwise  set forth in Articles  Supplementary  filed with the  Maryland  State
Department of Assessments  and Taxation  describing any further Series from time
to time created by the Board of Directors:

          (i) Assets  Belonging  to Series.  All  consideration  received by the
     Corporation  for the  issue  or  sale of  Shares  of a  particular  Series,
     together  with all  assets  in which  such  consideration  is  invested  or
     reinvested,  all income, earnings,  profits and proceeds thereof, including
     any proceeds derived from the sale, exchange or liquidation of such assets,
     and any funds or payments derived from any reinvestment of such proceeds in
     whatever form the same may be, shall irrevocably  belong to that Series for
     all  purposes,  subject  only to the rights of  creditors,  and shall be so
     recorded  upon  the  books  of  the  account  of  the   Corporation.   Such
     consideration,  assets, income, earnings,  profits and proceeds,  including
     any proceeds derived from the sale, exchange or liquidation of such assets,
     and any funds or payments  derived from any  reinvestment of such proceeds,
     in  whatever  form the same may be,  together  with any  General  Items (as
     hereinafter  defined) allocated to that Series as provided in the following
     sentence,  are herein referred to as "assets  belonging to" that Series. In
     the event that there are any assets, income, earnings,  profits or proceeds
     thereof,  funds or payments which are not readily identifiable as belonging
     to any  particular  Series  (collectively  "General  Items"),  the Board of
     Directors shall allocate such General Items to and among any one or more of
     the Series  created  from time to time in such  manner and on such basis as
     it, in its sole discretion, deems fair and equitable; and any General Items
     so allocated to a particular Series shall belong to that Series.  Each such
     allocation by the Board of Directors  shall be conclusive  and binding upon
     the stockholders of all Series for all purposes.

          (ii)  Liabilities  Belonging to Series.  The assets  belonging to each
     particular  Series shall be charged with the liabilities of the Corporation
     in  respect  of that  Series  and with all  expenses,  costs,  charges  and
     reserves  attributable  to that Series,  and shall be so recorded  upon the
     books of account of the Corporation.  Such  liabilities,  expenses,  costs,
     charges  and  reserves,  together  with any General  Items (as  hereinafter
     defined) allocated to that Series as provided in the following sentence, so
     charged to that Series are herein referred to as "liabilities belonging to"
     that  Series.  In the event  there are any general  liabilities,  expenses,
     costs,  charges  or  reserves  of the  Corporation  which  are not  readily
     identifiable as belonging to any particular Series  (collectively  "General
     Items"),  the Board of  Directors  shall  allocate  and charge such General
     Items to and among any one or more of the Series  created from time to time
     in such  manner  and on such  basis as the Board of  Directors  in its sole
     discretion deems fair and equitable; and any General Items so allocated and
     charged to a  particular  Series  shall  belong to that  Series.  Each such
     allocation by the Board of Directors  shall be conclusive  and binding upon
     the stockholders of all Series for all purposes.

                                                                               3

<PAGE>

          (iii) Dividends. Dividends and distributions on Shares of a particular
     Series may be paid to the  holders of Shares of that  Series at such times,
     in such  manner and from such of the income and capital  gains,  accrued or
     realized,  from the assets  belonging to that Series,  after  providing for
     actual and accrued  liabilities  belonging to that Series,  as the Board of
     Directors may determine.

          (iv)  Liquidation.  In event of the  liquidation or dissolution of the
     Corporation, the stockholders of each Series that has been created shall be
     entitled  to  receive,  as a Series,  when and as  declared by the Board of
     Directors,  the  excess of the assets  belonging  to that  Series  over the
     liabilities  belonging to that Series.  The assets so  distributable to the
     stockholders  of any  particular  Series  shall be  distributed  among such
     stockholders  in  proportion to the number of Shares of that Series held by
     them and recorded on the books of the Corporation.

          (v) Voting. On each matter submitted to vote of the stockholders, each
     holder  of a Share  shall be  entitled  to one vote  for  each  such  Share
     standing in his name on the books of the  Corporation  irrespective  of the
     Series  thereof and all Shares of all Series  shall vote as a single  class
     ("Single Series Voting"); provided, however, that (a) as to any matter with
     respect  to  which  a  separate  vote  of any  Series  is  required  by the
     Investment  Company  Act of 1940 or would be  required  under the  Maryland
     General  Corporation  Law, such  requirements as to a separate vote by that
     Series shall apply in lieu of Single Series Voting as described  above; (b)
     in the event that the separate vote  requirements  referred to in (a) above
     apply with respect to one or more Series,  then,  subject to (c) below, the
     Shares of all other Series shall vote as a single class;  and (c) as to any
     matter which does not affect the interest of a particular Series,  only the
     holders of Shares of the one or more  affected  Series shall be entitled to
     vote.

          (vi) Equality. All Shares of each particular Series shall represent an
     equal  proportionate  interest  in the  assets  belonging  to  that  Series
     (subject to the  liabilities  belonging to that Series),  and each Share of
     any  particular  Series  shall be equal to each other Share of that Series;
     but the  provisions  of this sentence  shall not restrict any  distinctions
     permissible  under  these  Articles  of  Incorporation  that may exist with
     respect to stockholder  elections to receive  dividends or distributions in
     cash or Shares of the same Series or that may otherwise  exist with respect
     to dividends and distributions on Shares of the same Series.

     C. No holder of shares shall be entitled as such, as a matter of right,  to
purchase or subscribe for any part of any new or  additional  issue of shares or
securities of the Corporation.

     All  shares  now or  hereafter  authorized,  and of any  Series,  shall  be
"subject to redemption" and "redeemable",  in the sense used in the General Laws
of the State of Maryland  authorizing  the  formation  of  corporations,  at the
redemption  or  repurchase  price for shares of that Series,  determined  in the
manner set out in these Articles of Incorporation  or in any amendment  thereto.
In the absence of any contrary  specification as to the purpose for which Shares
are repurchased by it, all Shares so repurchased shall be deemed to be "acquired
for retirement" in the sense  contemplated by the laws of the State of Maryland.
Shares retired by repurchase or retired by redemption  shall thereafter have the
status of authorized but unissued Shares of the Corporation.

     All persons who shall acquire  Shares shall acquire the same subject to the
provisions of these Articles of Incorporation.

                                                                               4

<PAGE>

     D. The terms of each Series as further set by the Board of Directors are as
follows:

     (1) The common stock of each Series shall have three sub-classes of shares,
which shall be designated  Class A Common Stock Class B Common Stock and Class D
Common Stock. The number of authorized  shares of Class A Common Stock, of Class
B Common  Stock and of Class D Common Stock of each Series shall each consist of
the sum of x and y where:  x equals the issued  and  outstanding  shares of such
sub-class;  and y equals  one-third of the  authorized  but  unissued  shares of
Common Stock of all sub-classes of that particular  class;  provided that at all
times the aggregate authorized,  issued and outstanding shares of Class A, Class
B and  Class D  Common  Stock  of a  particular  Series  shall  not  exceed  the
authorized  number of shares of Common Stock of that Series  (i.e.,  500,000,000
shares of common  stock for each Series until  changed by further  action of the
Board of Directors in accordance  with Section  2-208.1 of the Maryland  General
Corporation Law or a successor provision);  and, in the event application of the
formula above would result,  at any time, in fractional  shares,  the applicable
number of  authorized  shares of each  sub-class  shall be  rounded  down to the
nearest whole number of shares of such sub-class.  Any sub-class of common stock
of  a  Series  shall  be  referred  to  herein  individually  as a  "Class"  and
collectively,  together with any further  sub-class or sub-classes  from time to
time established, as the "Classes."

     (2) All Classes shall  represent the same interest in the  Corporation  and
have  identical  voting,  dividend,  liquidation,  and other  rights;  provided,
however, that notwithstanding  anything in the charter of the Corporation to the
contrary:

          (a) Class A Shares may be subject to such front-end sales loads as may
     be  established  by the Board of Directors  from time to time in accordance
     with the  Investment  Company  Act of 1940,  as  amended  (the  "Investment
     Company  Act")  and  applicable  rules  and  regulations  of  the  National
     Association of Securities Dealers, Inc. (the "NASD").

          (b) Class B shares may be subject to such  contingent  deferred  sales
     charges as may be  established  from time by time by the Board of Directors
     in accordance  with the  Investment  Company Act and  applicable  rules and
     regulations  of the NASD.  Subject to  subsection  (e) below,  each Class B
     share shall convert  automatically into Class A shares on the last business
     day of the  month  that  precedes  the  eighth  anniversary  of the date of
     issuance of such class B shares;  such conversion  shall be effected on the
     bases of the relative net asset values of Class B shares and Class A shares
     as determined by the Corporation on the date of conversion.

          (c) Class D shares may be subject to such  contingent  deferred  sales
     charge as may be established from time to time by the Board of Directors in
     accordance  with  the  Investment  Company  Act and  applicable  rules  and
     regulations of the NASD.

          (d) Expenses related solely to a particular Class (including,  without
     limitation,   distribution   expenses   under  a  Rule   12b-1   plan   and
     administrative expenses under an administration or service agreement,  plan
     or other  arrangement,  however  designated,  which may differ  between the
     Classes) shall be borne by that Class and shall

                                                                               5

<PAGE>

     be  appropriately  reflected  (in the  manner  determined  by the  Board of
     Directors) in the net asset value, dividends,  distribution and liquidation
     rights of the shares of that Class.

          (e) At such time as shall be permitted  under the  Investment  Company
     Act, any applicable rules and regulations  thereunder and the provisions of
     any exemptive order applicable to the Corporation, and as may be determined
     by the Board of Directors and disclosed in the then current  prospectus for
     a Series,  shares of a  particular  Class of a Series may be  automatically
     converted into shares of another Class of a Series; provided, however, that
     such  conversion  shall be subject  to the  continuing  availability  of an
     opinion of counsel to the effect that such conversion does not constitute a
     taxable event under federal income tax law. The Board of Directors,  in its
     sole  discretion,  may suspend any conversion  rights if such opinion is no
     longer available.

          (f) As to any matter  with  respect  to which a  separate  vote of any
     Class of a Series  is  required  by the  Investment  Company  Act or by the
     Maryland General Corporation Law (including,  without limitation,  approval
     of any plan,  agreement or other arrangement  referred to in subsection (c)
     above),  such  requirement  as to a separate vote by that Class of a Series
     shall apply, and, if permitted by the Investment  Company Act or any rules,
     regulations or orders thereunder and the Maryland General  Corporation Law,
     the Classes  shall vote  together as a single Class on any such matter that
     shall have the same effect on each such  Class.  As to any matter that does
     not affect the interest of a particular  Class,  only the holders of shares
     of the affected Class shall be entitled to vote.

     SIXTH: Directors.  The initial number of directors of the Corporation shall
be two,  and the names of those who  shall  act as such  until the first  annual
meeting and until their  successors  are elected and  qualified  are as follows:
William C.  Morris  and Ronald T.  Schroeder.  The  number of  directors  may be
changed  from  time  to  time  in  such  lawful  manner  as the  By-Laws  of the
Corporation  shall  provide.  Unless  otherwise  provided  by the By-Laws of the
Corporation, the directors of the Corporation need not be stockholders.

     SEVENTH: Provisions for Defining, Limiting and Regulating the Powers of the
Corporation, Directors and Stockholders.

     A.  Board of  Directors.  The Board of  Directors  shall  have the  general
management and control of the business and property of the Corporation,  and may
exercise all the powers of the Corporation,  except such as are by statute or by
these Articles of Incorporation or by the By-Laws  conferred upon or reserved to
the  stockholders.  In furtherance and not in limitation of the powers conferred
by statute, the Board of Directors is hereby empowered:

          1. To authorize the issuance and sale, from time to time, of Shares of
     any Series  whether for cash at not less than the par value  thereof or for
     such other  consideration as the Board of Directors may deem advisable,  in
     the  manner and to the extent  now or  hereafter  permitted  by the laws of
     Maryland;  provided,  however,  the  consideration (or the value thereof as
     determined  by the  Board of  Directors)  per share to be  received  by the
     Corporation  upon the sale of  shares  of any  Series  (including  treasury
     Shares) shall not be less than the net asset value  (determined as provided
     in Article NINTH hereof) per Share of that Series  outstanding  at

                                                                               6

<PAGE>

     the time (determined by the Board of Directors) as of which the computation
     of such net asset value shall be made.

          2. To authorize the execution and performance by the Corporation of an
     agreement or agreements,  which may be exclusive  contracts,  with Seligman
     Financial Services,  Inc., a Delaware corporation,  or any other person, as
     distributor, providing for the distribution of Shares of any Series.

          3. To specify, in instances in which it may be desirable,  that Shares
     of  any  Series  repurchased  by  the  Corporation  are  not  acquired  for
     retirement   and  to  specify  the  purposes  for  which  such  Shares  are
     repurchased.

          4. To authorize the execution and performance by the Corporation of an
     agreement  or  agreements  with  J. & W.  Seligman  & Co.  Incorporated,  a
     Delaware  corporation,  or any  successor to the  corporation  ("Seligman")
     providing for the investment and other operations of the Corporation.

     The  Corporation may in its By-Laws confer powers on the Board of Directors
in addition to the powers expressly conferred by statute.

     B. Quorum;  Adjournment;  Majority Vote. The presence in person or by proxy
of the holders of one-third of the Shares of all Series  issued and  outstanding
and entitled to vote thereat shall  constitute a quorum for the  transaction  of
any business at all meetings of the shareholders except as otherwise provided by
law or in these Articles of  Incorporation  and except that where the holders of
Shares of any Series are  entitled to a separate  vote as a Series (a  "Separate
Series")  or where the holders of Shares of two or more (but not all) Series are
required  to vote as a single  Series (a  "Combined  Series"),  the  presence in
person or by proxy of the holders of  one-third  of the Shares of that  Separate
Series or  Combined  Series,  as the case may be,  issued  and  outstanding  and
entitled to vote thereat shall constitute a quorum for such vote. If, however, a
quorum with respect to all Series,  a Separate Series or a Combined  Series,  as
the case may be,  shall not be  present  or  represented  at any  meeting of the
shareholders,  the  holders of a  majority  of the  Shares of all  Series,  such
Separate Series or such Combined  Series,  as the case may be, present in person
or by proxy and  entitled to vote shall have power to adjourn  the meeting  from
time to time as to all Classes,  such Separate Class or such Combined  Class, as
the case may be, without notice other than  announcement  at the meeting,  until
the  requisite  number  of  Shares  entitled  to vote at such  meeting  shall be
present.  At such  adjourned  meeting  at which the  requisite  number of Shares
entitled to vote thereat  shall be  represented  any business may be  transacted
which might have been  transacted  at the meeting as  originally  notified.  The
absence  from any meeting of  stockholders  of the number of Shares in excess of
one-third of the Shares of all Series or of the affected Series, as the case may
be, which may be required by the laws of the State of Maryland,  the  Investment
Company  Act  of  1940  or  any  other   applicable   law,   these  Articles  of
Incorporation, for action upon any given matter shall not prevent action of such
meeting  upon any other  matter or matters  which may  properly  come before the
meeting,  if there shall be present thereat,  in person or by proxy,  holders of
the number of Shares  required  for  action in  respect of such other  matter or
matters.  Notwithstanding  any provision of law requiring any action to be taken
or  authorized  by the  holders of a greater  proportion  than a majority of the
Shares of all Series or of the Shares of a  particular  Series,  as the case may
be, entitled to vote thereon,  such action shall be valid and effective if taken
or authorized by the

                                                                               7

<PAGE>

affirmative  vote of the holders of a majority of the Shares of all Series or of
such Series, as the case may be, outstanding and entitled to vote thereon.

     EIGHTH: Redemptions and Repurchases.

     A. The Corporation  shall under some  circumstances  redeem,  and may under
other circumstances redeem or repurchase, Shares as follows:

          1.  Obligation of the  Corporation  to Redeem  Shares.  Each holder of
     Shares  of any  Series  shall be  entitled  at his  option to  require  the
     Corporation to redeem all or any part of the Shares of that Series owned by
     such holder,  upon written or telegraphic request to the Corporation or its
     designated   agent,   accompanied  by  surrender  of  the   certificate  or
     certificates for such shares,  or such other evidence of ownership as shall
     be specified by the Board of Directors,  for the proportionate interest per
     Share in the assets of the Corporation belonging to that Class, or the cash
     equivalent  thereof  (being  the net asset  value per Share of that  Series
     determined  as  provided  in Article  NINTH  hereof  less the amount of any
     applicable  contingent  deferred  sales load  payable on such  redemption),
     subject to and in  accordance  with the  provisions  of paragraph B of this
     Article.

          2. Right of the Corporation to Redeem Shares. In addition the Board of
     Directors  may,  from  time  to  time  in  its  discretion,  authorize  the
     Corporation to require the redemption of all or any part of the outstanding
     Shares  of any  Series,  for the  proportionate  interest  per Share in the
     assets of the Corporation  belonging to that Series, or the cash equivalent
     thereof  (being the net asset value per Share of that Series  determined as
     provided in Article NINTH  hereof),  subject to and in accordance  with the
     provisions  of  paragraph  B of this  Article,  upon the sending of written
     notice thereof to each  stockholder any of whose Shares are so redeemed and
     upon  such  terms  and  conditions  as the Board of  Directors  shall  deem
     advisable.

          3. Right of the  Corporation  to  Repurchase  Shares.  In addition the
     Board of Directors may, from time to time in its discretion,  authorize the
     officers of the  Corporation  to  repurchase  Shares of any Series,  either
     directly  or  through  an  agent,  subject  to and in  accordance  with the
     provisions  of  paragraph  B of this  Article.  The price to be paid by the
     Corporation upon any such repurchase shall be determined, in the discretion
     of the  Board  of  Directors,  in  accordance  with  any  provision  of the
     Investment  Company  Act of 1940  or any  rule  or  regulation  thereunder,
     including any rule or regulation made or adopted  pursuant to Section 22 of
     the  Investment  Company  Act  of  1940  by  the  Securities  and  Exchange
     Commission or any securities  association  registered  under the Securities
     and Exchange Act of 1934.

     B. The following provisions shall be applicable with respect to redemptions
and repurchases of Shares of any Series pursuant to paragraph A hereof:

          1. The time as of which the net asset value per Share of a  particular
     Series  applicable to any redemption  pursuant to subparagraph A(1) or A(2)
     of this Article  shall be computed  shall be such time as may be determined
     by or pursuant to the  direction of the Board of Directors  (which time may
     differ from Class to Class).

                                                                               8

<PAGE>

          2. Certificates for Shares of any Series to be redeemed or repurchased
     shall be surrendered in proper form for transfer,  together with such proof
     of the  authenticity  of signatures as may be required by resolution of the
     Board of Directors.

          3. Payment of the redemption or repurchase price by the Corporation or
     its designated agent shall be made in cash within seven days after the time
     used for  determination  of the redemption or repurchase  price,  but in no
     event prior to delivery to the  Corporation or its designated  agent of the
     certificate  or  certificates  for the Shares of the  particular  Series so
     redeemed or repurchased, or of such other evidence of ownership as shall be
     specified by the Board of Directors; except that any payment may be made in
     whole or in part in securities or other assets of the Corporation belonging
     to that  Series  if,  in the  event of the  closing  of the New York  Stock
     Exchange or the happening of any event at any time prior to actual  payment
     which makes the liquidation of Securities in orderly fashion impractical or
     impossible,  the Board of Directors  shall  determine  that payment in cash
     would be prejudicial to the best interests of the remaining stockholders of
     that Series.  In making any such payment in whole or in part in  Securities
     or  other  assets  of  the  Corporation   belonging  to  that  Series,  the
     Corporation  shall, as nearly as may be practicable,  deliver Securities or
     other assets of a gross value (determined in the manner provided in Article
     NINTH  hereof)   representing  the  same  proportionate   interest  in  the
     Securities and other assets of the Corporation  belonging to that Series as
     is represented  by the Shares of that Class so to be paid for.  Delivery of
     the  Securities  included in any such payment  shall be made as promptly as
     any  necessary  transfers  on the books of the several  corporations  whose
     Securities are to be delivered may be made.

          4. The  right of the  holder  of  Shares  of any  Series  redeemed  or
     repurchased  by the  Corporation  as  provided  in this  Article to receive
     dividends  thereon and all other rights of such holder with respect to such
     Shares shall  forthwith  cease and terminate  from and after the time as of
     which the redemption or repurchase price of such Shares has been determined
     (except  the  right  of  such  holder  to  receive  (a) the  redemption  or
     repurchase  price of such Shares  from the  Corporation  or its  designated
     agent,  in cash and/or in  securities  or other  assets of the  Corporation
     belonging  to that  Class,  and (b) any  dividend  to which such holder had
     previously  become  entitled  as the  record  holder of such  Shares on the
     record  date for such  dividend,  and,  with  respect  to Shares  otherwise
     entitled  to vote,  except the right of such holder to vote at a meeting of
     stockholders such Shares owned of record by him on the record date for such
     meeting).

     NINTH:  Determination of Net Asset Value.  For the purposes  referred to in
Articles  SEVENTH and EIGHTH  hereof the net asset value per Share of any Series
shall be determined by or pursuant to the direction of the Board of Directors in
accordance with the following provisions:

     A. Such net asset value per Share of a  particular  Series on any day shall
be computed as follows:

          The net asset  value per Share of that  Series  shall be the  quotient
     obtained  by  dividing  the "net value of the  assets"  of the  Corporation
     belonging to that Series by the total number of Shares of that Class at the
     time deemed to be outstanding  (including  Shares sold whether paid for and
     issued or not, and excluding Shares redeemed or repurchased on the basis of
     previously  determined  values,  whether  paid  for,  received  and held in
     treasury, or not).

                                                                               9

<PAGE>

          The "net  value  of the  assets"  of the  Corporation  belonging  to a
     particular  Series  shall be the "gross  value" of the assets  belonging to
     that Series after deducting the amount of all expenses incurred and accrued
     and unpaid belonging to that Series,  such reserves belonging to that Class
     as may be set up to cover taxes and any other  liabilities,  and such other
     deductions  belonging  to that Series as in the opinion of the  officers of
     the Corporation are in accordance with accepted accounting practice.

          The "gross value" of the assets belonging to a particular Series shall
     be the  amount  of all cash and  receivables  and the  market  value of all
     Securities and other assets held by the  Corporation  and belonging to that
     Series at the time as of which the  determination is made.  Securities held
     shall be valued at market  value or, in the  absence of  readily  available
     market  quotations,  at fair value, both as determined  pursuant to methods
     approved  by the  Board of  Directors  and in  accordance  with  applicable
     statutes and regulations.

     B. The Board of Directors is  empowered,  in its  absolute  discretion,  to
establish other methods for determining such net asset value whenever such other
methods are deemed by it to be necessary or desirable  and are  consistent  with
the  provisions  of the  Investment  Company  Act of  1940  and  the  rules  and
regulations thereunder.

     TENTH:  Determination Binding. Any determination made by or pursuant to the
direction  of the Board of  Directors  in good faith,  and so far as  accounting
matters are involved in accordance with accepted accounting practice,  as to the
amount of the assets, obligations or liabilities of the Corporation belonging to
any Series,  as to the amount of the net income of the Corporation  belonging to
any Series for any period or amounts that are any time legally available for the
payment of dividends  of shares of any Series,  as to the amount of any reserves
or charges set up with respect to any Series and the  propriety  thereof,  as to
the time of or purpose for  creating any reserves or charges with respect to any
Series,  as to the use,  alteration or  cancellation  of any reserves or charges
with respect to any Series (whether or not any obligation or liability for which
such  reserves  or charges  shall  have been  created or shall have been paid or
discharged or shall be then or thereafter required to be paid or discharged), as
to the price or closing bid or asked price of any security  owned or held by the
Corporation and belonging to any Series,  as to the market value of any security
or fair value of any other asset owned by the  Corporation  and belonging to any
Series,  as to the  number of Shares of any Series  outstanding  or deemed to be
outstanding,   as  to  the  impracticability  or  impossibility  of  liquidating
Securities in orderly  fashion,  as to the extent to which it is  practicable to
deliver the  proportionate  interest in the  Securities  and other assets of the
Corporation  belonging to any Series  represented by any Shares belonging to any
Series redeemed or repurchased in payment for any such Shares,  as to the method
of payment  for any such  Shares  redeemed  or  repurchased,  or as to any other
matters  relating  to the issue,  sale,  redemption,  repurchase,  and/or  other
acquisition or disposition of Securities or Shares of the  Corporation  shall be
final and conclusive and shall be binding upon the  Corporation  and all holders
of Shares of all Series past,  present and future,  and Shares of all Series are
issued  and  sold on the  condition  and  understanding  that  any and all  such
determinations shall be binding as aforesaid.  No provision of these Articles of
Incorporation shall be effective to (a) bind any person to waive compliance with
any provision of the  Securities  Act of 1933 or the  Investment  Company Act of
1940 or of any valid rule,  regulation or order of the  Securities  and Exchange
Commission  thereunder,  or (b)  protect or purport to protect  any  director or
officer of the  Corporation  against any  liability  to the  Corporation  or its

                                                                              10

<PAGE>

security  holders  to which he would  otherwise  be subject by reason of willful
misfeasance,  bad faith,  gross  negligence or reckless  disregard of the duties
involved in the conduct of his office.

     ELEVENTH:  Liabilities of Director or Officer. A director or officer of the
Corporation  shall not be  liable to the  Corporation  or its  shareholders  for
monetary  damages for breach of fiduciary duty as a Director or Officer,  except
to the  extent  such  exemption  from  liability  or  limitation  thereof is not
permitted by law (including  the Investment  Company Act of 1940 as currently in
effect or as the same may hereafter be amended).

     No  amendment,  modification  or  repeal  of this  Article  ELEVENTH  shall
adversely affect any right or protection of a Director or Officer that exists at
the time of such amendment, modification or repeal.

     TWELFTH:   Indemnification  of  Directors,   Officers  and  Employees.  The
Corporation  shall  indemnify to the fullest extent  permitted by law (including
the  Investment  Company Act of 1940 as  currently  in effect or as the same may
hereafter  be amended) any person made or  threatened  to be made a party to any
action,  suit  or  proceeding,   whether  criminal,  civil,   administrative  or
investigative,  by reason of the fact that such person or such person's testator
or intestate  is or was a Director,  Officer or employee of the  Corporation  or
serves or served at the request of the  Corporation  any other  enterprise  as a
Director, Officer or employee. To the fullest extent permitted by law (including
the  Investment  Company Act of 1940 as  currently  in effect or as the same may
hereafter be  amended),  expenses  incurred by any such person in defending  any
such action,  suit or proceeding  shall be paid or reimbursed by the Corporation
promptly  upon  receipt  by it of an  undertaking  of such  person to repay such
expenses if it shall  ultimately be determined  that such person is not entitled
to be indemnified by the Corporation.  The rights provided to any person by this
Article shall be enforceable against the Corporation by such person who shall be
presumed to have relied upon it in serving or continuing to serve as a Director,
Officer or employee as provided  above.  No amendment  of this  Article  TWELFTH
shall impair the rights of any person arising at any time with respect to events
occurring prior to such  amendment.  For purposes of this Article  TWELFTH,  the
term  "Corporation"  shall include any  predecessor of the  Corporation  and any
constituent corporation (including any constituent of a constituent) absorbed by
the Corporation in a consolidation or merger;  the term "other enterprise" shall
include any corporation,  partnership,  joint venture, trust or employee benefit
plan;  service "at the request of the  Corporation"  shall include  service as a
Director,  Officer or employee of the  Corporation  which imposes  duties on, or
involves  services  by, such  Director,  Officer or employee  with respect to an
employee  benefit plan,  its  participants  or  beneficiaries;  any excise taxes
assessed on a person with respect to an employee benefit plan shall be deemed to
be indemnifiable  expenses;  and action by a person with respect to any employee
benefit plan which such person reasonably  believes to be in the interest of the
participants  and  beneficiaries  of such plan  shall be deemed to be action not
opposed to the best interests of the Corporation.

     THIRTEENTH:  Amendments.  The  Corporation  reserves  the right to take any
lawful  action and to make any  amendment  of these  Articles of  Incorporation,
including the right to make any amendment  which changes the terms of any Shares
of any Series now or hereafter  authorized by classification,  reclassification,
or otherwise, and to make any amendment authorizing any sale, lease, exchange or
transfer of the  property  and assets of the  Corporation  or  belonging  to any
Series as an entirety, or substantially as an entirety, with or without its good
will and  franchise,  if a  majority  of all the  Shares of all Series or of the
affected Series, as the case may be, at the time issued and outstanding

                                                                              11

<PAGE>

and entitled to vote, vote in favor of any such action or amendment,  or consent
thereto  in  writing,  and  reserves  the right to make any  amendment  of these
Articles of  Incorporation  in any form,  manner or  substance  now or hereafter
authorized or permitted by law.

     I  acknowledge  this  document to be my act,  and state under  penalties of
perjury  that with respect to all matters and facts  therein,  to the best of my
knowledge,  information  and  belief  such  matters  and  facts  are true in all
material respects.






DATE: November 21, 1991                          BY: /s/ LINDA A. MAHON
                                                    ----------------------------



                    DEFERRED COMPENSATION PLAN FOR DIRECTORS

                                       OF

                   SELIGMAN HENDERSON GLOBAL FUND SERIES, INC.
                                    ("FUND")


1. Election to Defer Payments.  Any member of the Board of Directors  (herein, a
"Director")  of the Fund may elect to have  payment  of that  Director's  annual
retainer or meeting fees or both for Board service  deferred as provided in this
Plan.  The election  shall be made in writing prior to, and to take effect from,
the  beginning  of a calendar  year.  For any Director in the year in which this
Plan is  adopted  or for a person  elected  a  director  in other  than the last
calendar  month of a year,  the election shall be made within 30 days after that
event and prior to, and to take  effect  from,  the  beginning  of the  calendar
quarter next ensuing after that event.  Elections shall continue in effect until
terminated in writing,  any such  termination to take effect on the first day of
the calendar  year  beginning  after  receipt of the notice of  termination.  An
election shall be irrevocable  as to payments  deferred in conformity  with that
election.

2. Deferred Payment Account.  Each deferred retainer or fee shall be credited at
the  time  when it  otherwise  would  have  been  payable  to an  account  to be
established  in the name of the Director on the books of the Fund (the "Deferred
Payment  Account")  adjusted for notional  investment  experience as hereinafter
described.

3. Return on Deferred Payment Account Balance. (a) For purposes of measuring the
investment  return on his Deferred  Payment  Account,  the Director may elect to
have the aggregate amount of his deferred  compensation (or a specified  portion
thereof)  receive  a  return  (i)  at a  rate  equal  to the  return  earned  on
three-month  U.S.  Treasury Bills at the beginning of each calendar quarter (the
"Treasury  Bill  Rate")  and such  interest  shall be  credited  to the  account
quarterly  at the  end of each  calendar  quarter,  or (ii) at a rate of  return
(positive or  negative)  equal to the rate of return on the shares of any of the
registered  investment  companies managed by J. & W. Seligman & Co. Incorporated
("Seligman")  or any other entity  controlling,  controlled  by, or under common
control with (as such terms are defined in the  Investment  Company Act of 1940)
Seligman  (each,  a "Notional  Fund"),  assuming  reinvestment  of dividends and
distributions  from the Notional Funds. (b) A Director may amend his designation
of investment  return as of the end of each calendar  quarter by giving  written
notice to the  President  of the Fund at least 30 days  prior to the end of such
calendar  quarter.  A timely  change to a Director's  designation  of investment
return shall become effective on the first day of the calendar quarter following
receipt by the President of the Fund (the "President").

4.  Notional  Investment  Experience.  Amounts  credited  to a Deferred  Payment
Account shall be periodically  adjusted for notional investment  experience.  In
each case such notional  investment  experience  shall be determined by treating
the Deferred



<PAGE>

Payment  Account as though an  equivalent  dollar  amount had been  invested and
reinvested in one or more of the Notional  Funds.  The Notional  Funds used as a
basis  for  determining  notional  investment  experience  with  respect  to any
Director's  Deferred  Payment  Account  shall be  designated  by the Director in
writing by instrument of election  substantially  in the form attached hereto as
Exhibit C and may be changed prospectively by similar written election effective
as of the first day of any calendar quarter. The President may from time to time
limit the Notional Funds available for purposes of such election. If at any time
any  Notional  Fund that has  previously  been  designated  by a  Director  as a
notional investment shall cease to exist or shall be unavailable for any reason,
or if the Director  fails to designate  one or more Notional  Funds  pursuant to
this  Section 4, the  President  may, at his  discretion  and upon notice to the
Director,  treat any amounts notionally  invested in such Notional Fund (whether
representing  past amounts credited to a Director's  Deferred Payment Account or
subsequent  fee  deferrals or both) as having been invested at the Treasury Bill
Rate,  only until such time as the Director  shall have made another  investment
election in accordance with the foregoing procedures.  Deferred Payment Accounts
shall  continue  to  be  adjusted  for  notional  investment   experience  until
distributed in full in accordance  with the  distribution  method elected by the
Director pursuant to Section 5 hereof.

5. Payment of Deferred  Amounts.  All amounts credited to an account pursuant to
any election by the Director  made as provided in Section 1 hereof shall be paid
to the Director

     (a)  in, or beginning in, the calendar year  following the calendar year in
          which the Director ceases to be a Director of the Fund, or

     (b)  in, or beginning  in, the calendar  year  following the earlier of the
          calendar  year in which the  Director  ceases to be a Director  of the
          Fund or attains age 70,

          and shall be paid

     (c)  in a lump sum payable on the first day of the  calendar  year in which
          payment is to be made, or

     (d)  in 10 or fewer  installments,  payable  on the  first day of each year
          commencing with the calendar year in which payment is to begin, all as
          the Director  shall specify in making the election.  If the payment is
          to be made in installments,  the amount of each  installment  shall be
          equal to a fraction  of the total of the amounts in the account at the
          date of the  payment  the  numerator  of  which  shall  be one and the
          denominator  of which  shall be the then  remaining  number  of unpaid
          installments  (including  the  installment  then to be  paid).  If the
          Director  dies at any time before all amounts in the account have been
          paid,  such  amounts  shall be paid at that  time in a lump sum to the
          beneficiary or beneficiaries



<PAGE>

          designated  by the Director in writing to receive such  payments or in
          the absence of such a designation to the estate of the Director.

The Board of Directors  may, in the case of an  unforseeable  emergency,  at its
sole  discretion  accelerate  the  payment of any  unpaid  amount for any or all
Directors.  For purposes of this paragraph,  an unforseeable emergency is severe
financial  hardship  to the  Director  resulting  from a sudden  and  unexpected
illness or  accident of the  Director  or of a dependent  (as defined in section
152(a) of the Internal  Revenue  Code) of the Director,  loss of the  Director's
property  due to  casualty,  or other  similar  extraordinary  and  unforseeable
circumstances  arising as a result of events beyond the control of the Director.
Payment due to an unforseeable emergency may not be made to the extent that such
hardship is or may be relieved  (i) through  reimbursement  or  compensation  by
insurance or otherwise;  (ii) by liquidation of the  Director's  assets,  to the
extent the  liquidation  of such assets would not itself cause severe  financial
hardship,  or (iii) by cessation of deferrals  under the Plan.  Examples of what
are not  considered to be  unforseeable  emergencies  include the need to send a
Director's  child to college or the desire to  purchase a home.  Withdrawals  of
amounts  because of an  unforseeable  emergency are only permitted to the extent
reasonably necessary to satisfy the emergency need.

6.  Assignment.  No deferred amount or unpaid portion thereof may be assigned or
transferred  by  the  Director  except  by  will  or the  laws  of  descent  and
distribution.

7. Withholding Taxes. The Fund shall deduct from all payments any federal, state
or local taxes and other charges  required by law to be withheld with respect to
such payments.

8. Nature of Rights;  Nonalienation.  A  Director's  rights to deferred  payment
under the Plan shall be solely  those of an  unsecured  general  creditor of the
Fund, and any payments by the Fund pursuant to the Plan will be made solely from
the Fund's general assets and property.  The Fund will be under no obligation to
purchase,  hold or dispose of any  investment  for the  specific  benefit of any
Director but, if the Fund should choose to purchase  shares of any Notional Fund
in order to cover all or a portion of its obligations  under the Plan, then such
investments will continue to be a part of the general assets and property of the
Fund.  A  Director's  rights  under the Plan may not be  transferred,  assigned,
pledged or otherwise  alienated,  and any attempt by the Director to do so shall
be null and void.

9. Status of Director.  Nothing in the Plan nor any election  hereunder shall be
construed  as  conferring  on any Director the right to remain a Director of the
Fund or to receive fees at any particular rate.

10.  Amendment and  Acceleration.  The Board of Directors may at any time at its
sole discretion amend or terminate this Plan, provided that no such amendment or
termination  shall adversely  affect the right of Directors to receive  deferred
amounts credited to their account.



<PAGE>

11.  Administration.  The Plan shall be administered by the President or by such
person or persons as the  President  may  designate to carry out  administrative
functions  hereunder.  The President shall have complete discretion to interpret
and administer  the Plan in accordance  with its terms,  and his  determinations
shall be binding on all persons.


Amended as of March 19, 1998



Sullivan & Cromwell
                                                125 Broad Street, New York 10004
New York Telephone (212) 850-4000





                                                     April 13, 1994


Seligman Henderson Global Fund Series, Inc.,
100 Park Avenue
New York, New York 10017

Dear Sirs:

     In connection  with  Post-Effective  Amendment  No. 11 to the  Registration
Statement  on Form N-1A (File No.  33-44186) of Seligman  Henderson  Global Fund
Series,  Inc., a Maryland  corporation  (the  "Fund"),  which you expect to file
under the  Securities  Act of 1933,  as amended  (the  "Securities  Act"),  with
respect to an indefinite  number of shares of Capital Stock, par value $.001 per
share, of the class designated as Seligman Henderson Global Technology Fund (the
"Shares"),   we,  as  your  counsel,   have  examined  such  corporate  records,
certificates and other documents and such questions of law as we have considered
necessary or appropriate for the purposes of this opinion.

     Upon the basis of such examination, we advise you that, in our opinion, the
Shares have been duly  authorized to the extent of  10,000,000  Shares and, when
the  Post-Effective  Amendment  referred to above has become effective under the
Securities  Act and the Shares  have been  issued (a) for at least the par value
thereof in accordance with the Registration  Statement referred to above, (b) so
as not to exceed the then authorized number of Shares and (c) in accordance with
the authorization of the Board of Directors, the Shares will be duly and validly
issued, fully paid an non-assessable.

     The  foregoing  opinion is limited to the federal laws of the United States
and the General Corporation Law of the State of Maryland,  and we are expressing
no opinion as to the effect of the law of any other jurisdiction.



<PAGE>

                                                                               2

     We hereby  consent  to the  filing of this  opinion  as an  exhibit  to the
Pre-Effective  Amendment  referred to above.  In giving such consent,  we do not
thereby  admit that we are in the category of persons  whose consent is required
under Section 7 of the Securities Act.


                                                  Very truly yours,


                                                  /s/Sullivan & Cromwell
                                                  Sullivan & Cromwell




CONSENT OF INDEPENDENT AUDITORS

Seligman Henderson Global Fund Series, Inc.:

We  consent  to the  use in  Post-Effective  Amendment  No.  27 to  Registration
Statement No.  33-44186 of our report dated  December 4, 1998,  appearing in the
Annual Report to Shareholders for the year ended October 31, 1998,  incorporated
by reference in the Statement of Additional Information, and to the reference to
us under the caption  "Financial  Highlights" in the  Prospectus,  which is also
part of such Registration Statement.


DELOITTE & TOUCHE LLP
New York, New York
February 24, 1999



<TABLE> <S> <C>


<ARTICLE> 6
<SERIES>
          <NUMBER>011
          <NAME> SELIGMAN HENDERSON INTERNATIONAL FUND CLASS A
<MULTIPLIER> 1000
       
<S>                             <C>
<PERIOD-TYPE>                 12-MOS
<FISCAL-YEAR-END>                          OCT-31-1998
<PERIOD-END>                               OCT-31-1998
<INVESTMENTS-AT-COST>                            70023
<INVESTMENTS-AT-VALUE>                           84619
<RECEIVABLES>                                     4258
<ASSETS-OTHER>                                   10424
<OTHER-ITEMS-ASSETS>                                 0
<TOTAL-ASSETS>                                   99301
<PAYABLE-FOR-SECURITIES>                          6199
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                         1661
<TOTAL-LIABILITIES>                               7860
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                         76826
<SHARES-COMMON-STOCK>                             2485<F1>
<SHARES-COMMON-PRIOR>                             2572<F1>
<ACCUMULATED-NII-CURRENT>                         (12)
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                            955
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                         13672
<NET-ASSETS>                                     44121<F1>
<DIVIDEND-INCOME>                                  782<F1>
<INTEREST-INCOME>                                  108<F1>
<OTHER-INCOME>                                    (20)<F1>
<EXPENSES-NET>                                   (816)<F1>
<NET-INVESTMENT-INCOME>                             54<F1>
<REALIZED-GAINS-CURRENT>                          1670
<APPREC-INCREASE-CURRENT>                         4066
<NET-CHANGE-FROM-OPS>                             5424
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                            0
<DISTRIBUTIONS-OF-GAINS>                        (3074)<F1>
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                           3942<F1>
<NUMBER-OF-SHARES-REDEEMED>                     (4192)<F1>
<SHARES-REINVESTED>                                163<F1>
<NET-CHANGE-IN-ASSETS>                          (1993)
<ACCUMULATED-NII-PRIOR>                           (12)
<ACCUMULATED-GAINS-PRIOR>                         4298
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                              462<F1>
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                                    816<F1>
<AVERAGE-NET-ASSETS>                             46130<F1>
<PER-SHARE-NAV-BEGIN>                            17.92<F1>
<PER-SHARE-NII>                                   0.03<F1>
<PER-SHARE-GAIN-APPREC>                           1.02<F1>
<PER-SHARE-DIVIDEND>                                 0
<PER-SHARE-DISTRIBUTIONS>                       (1.22)<F1>
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                              17.75<F1>
<EXPENSE-RATIO>                                   1.69<F1>
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
<FN>
<F1>Class A only. All other data are fund level.
</FN>
        


</TABLE>

<TABLE> <S> <C>


<ARTICLE> 6
<SERIES>
          <NUMBER>012
          <NAME> SELIGMAN HENDERSON INTERNATIONAL FUND CLASS B
<MULTIPLIER> 1000
       
<S>                             <C>
<PERIOD-TYPE>                 12-MOS
<FISCAL-YEAR-END>                          OCT-31-1998
<PERIOD-END>                               OCT-31-1998
<INVESTMENTS-AT-COST>                            70023
<INVESTMENTS-AT-VALUE>                           84619
<RECEIVABLES>                                     4258
<ASSETS-OTHER>                                   10424
<OTHER-ITEMS-ASSETS>                                 0
<TOTAL-ASSETS>                                   99301
<PAYABLE-FOR-SECURITIES>                          6199
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                         1661
<TOTAL-LIABILITIES>                               7860
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                         76826
<SHARES-COMMON-STOCK>                              581<F1>
<SHARES-COMMON-PRIOR>                              367<F1>
<ACCUMULATED-NII-CURRENT>                         (12)
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                            955
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                         13672
<NET-ASSETS>                                      9835<F1>
<DIVIDEND-INCOME>                                  142<F1>
<INTEREST-INCOME>                                   16<F1>
<OTHER-INCOME>                                     (4)<F1>
<EXPENSES-NET>                                   (217)<F1>
<NET-INVESTMENT-INCOME>                           (63)<F1>
<REALIZED-GAINS-CURRENT>                          1670
<APPREC-INCREASE-CURRENT>                         4066
<NET-CHANGE-FROM-OPS>                             5424
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                            0
<DISTRIBUTIONS-OF-GAINS>                         (443)<F1>
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                            548<F1>
<NUMBER-OF-SHARES-REDEEMED>                      (361)<F1>
<SHARES-REINVESTED>                                 27<F1>
<NET-CHANGE-IN-ASSETS>                          (1993)
<ACCUMULATED-NII-PRIOR>                           (12)
<ACCUMULATED-GAINS-PRIOR>                         4298
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                               85<F1>
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                                    217<F1>
<AVERAGE-NET-ASSETS>                              8498<F1>
<PER-SHARE-NAV-BEGIN>                            17.30<F1>
<PER-SHARE-NII>                                 (0.12)<F1>
<PER-SHARE-GAIN-APPREC>                           0.97<F1>
<PER-SHARE-DIVIDEND>                                 0
<PER-SHARE-DISTRIBUTIONS>                       (1.22)<F1>
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                              16.93<F1>
<EXPENSE-RATIO>                                   2.55<F1>
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
<FN>
<F1>Class B only. All other data are fund level.
</FN>
        


</TABLE>

<TABLE> <S> <C>


<ARTICLE> 6
<SERIES>
        <NUMBER>014
        <NAME> SELIGMAN HENDERSON INTERNATIONAL FUND CLASS D
<MULTIPLIER> 1000
       
<S>                             <C>
<PERIOD-TYPE>                 12-MOS
<FISCAL-YEAR-END>                          OCT-31-1998
<PERIOD-END>                               OCT-31-1998
<INVESTMENTS-AT-COST>                            70023
<INVESTMENTS-AT-VALUE>                           84619
<RECEIVABLES>                                     4258
<ASSETS-OTHER>                                   10424
<OTHER-ITEMS-ASSETS>                                 0
<TOTAL-ASSETS>                                   99301
<PAYABLE-FOR-SECURITIES>                          6199
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                         1661
<TOTAL-LIABILITIES>                               7860
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                         76826
<SHARES-COMMON-STOCK>                             2215<F1>
<SHARES-COMMON-PRIOR>                             2368<F1>
<ACCUMULATED-NII-CURRENT>                         (12)
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                            955
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                         13672
<NET-ASSETS>                                     37485<F1>
<DIVIDEND-INCOME>                                  694<F1>
<INTEREST-INCOME>                                   65<F1>
<OTHER-INCOME>                                    (18)<F1>
<EXPENSES-NET>                                  (1044)<F1>
<NET-INVESTMENT-INCOME>                          (303)<F1>
<REALIZED-GAINS-CURRENT>                          1670
<APPREC-INCREASE-CURRENT>                         4066
<NET-CHANGE-FROM-OPS>                             5424
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                            0
<DISTRIBUTIONS-OF-GAINS>                        (2927)<F1>
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                           2130<F1>
<NUMBER-OF-SHARES-REDEEMED>                     (2444)<F1>
<SHARES-REINVESTED>                                161<F1>
<NET-CHANGE-IN-ASSETS>                          (1993)
<ACCUMULATED-NII-PRIOR>                           (12)
<ACCUMULATED-GAINS-PRIOR>                         4298
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                              408<F1>
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                                   1044<F1>
<AVERAGE-NET-ASSETS>                             40837<F1>
<PER-SHARE-NAV-BEGIN>                            17.30<F1>
<PER-SHARE-NII>                                 (0.12)<F1>
<PER-SHARE-GAIN-APPREC>                           0.97<F1>
<PER-SHARE-DIVIDEND>                                 0
<PER-SHARE-DISTRIBUTIONS>                       (1.22)<F1>
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                              16.93<F1>
<EXPENSE-RATIO>                                   2.55<F1>
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
<FN>
<F1>Class D only. All other data are fund level.
</FN>
        


</TABLE>

<TABLE> <S> <C>

 
<ARTICLE> 6
<SERIES>
        <NUMBER>021
        <NAME> SELIGMAN HENDERSON GLOBAL SMALLER COS FUND CLASS A
<MULTIPLIER> 1000
       
<S>                             <C>
<PERIOD-TYPE>                 12-MOS
<FISCAL-YEAR-END>                          OCT-31-1998
<PERIOD-END>                               OCT-31-1998
<INVESTMENTS-AT-COST>                           761941
<INVESTMENTS-AT-VALUE>                          797114
<RECEIVABLES>                                    49424
<ASSETS-OTHER>                                   53240
<OTHER-ITEMS-ASSETS>                                 0
<TOTAL-ASSETS>                                  899778
<PAYABLE-FOR-SECURITIES>                         15364
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                        14036
<TOTAL-LIABILITIES>                              29400
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                        860210
<SHARES-COMMON-STOCK>                            26572<F1>
<SHARES-COMMON-PRIOR>                            27801<F1>
<ACCUMULATED-NII-CURRENT>                         (11)
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                        (18060)
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                         28239
<NET-ASSETS>                                    374890<F1>
<DIVIDEND-INCOME>                                 4297<F1>
<INTEREST-INCOME>                                  539<F1>
<OTHER-INCOME>                                    (10)<F1>
<EXPENSES-NET>                                  (6701)<F1>
<NET-INVESTMENT-INCOME>                         (1875)<F1>
<REALIZED-GAINS-CURRENT>                       (16263)
<APPREC-INCREASE-CURRENT>                      (31823)
<NET-CHANGE-FROM-OPS>                          (57162)
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                            0
<DISTRIBUTIONS-OF-GAINS>                       (17124)<F1>
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                          24447<F1>
<NUMBER-OF-SHARES-REDEEMED>                    (26762)<F1>
<SHARES-REINVESTED>                               1086<F1>
<NET-CHANGE-IN-ASSETS>                        (182244)
<ACCUMULATED-NII-PRIOR>                           (10)
<ACCUMULATED-GAINS-PRIOR>                        36841
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                             4060<F1>
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                                   6701<F1>
<AVERAGE-NET-ASSETS>                            405886<F1>
<PER-SHARE-NAV-BEGIN>                            15.62<F1>
<PER-SHARE-NII>                                 (0.07)<F1>
<PER-SHARE-GAIN-APPREC>                         (0.81)<F1>
<PER-SHARE-DIVIDEND>                                 0
<PER-SHARE-DISTRIBUTIONS>                        (.63)<F1>
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                              14.11<F1>
<EXPENSE-RATIO>                                   1.65<F1>
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
<FN>
<F1>Class A only. All other data are fund level.
</FN>
        


</TABLE>

<TABLE> <S> <C>

 
<ARTICLE> 6
<SERIES>
        <NUMBER>022
        <NAME> SELIGMAN HENDERSON GLOBAL SMALLER COS FUND CLASS B
<MULTIPLIER> 1000
       
<S>                             <C>
<PERIOD-TYPE>                 12-MOS
<FISCAL-YEAR-END>                          OCT-31-1998
<PERIOD-END>                               OCT-31-1998
<INVESTMENTS-AT-COST>                           761941
<INVESTMENTS-AT-VALUE>                          797114
<RECEIVABLES>                                    49424
<ASSETS-OTHER>                                   53240
<OTHER-ITEMS-ASSETS>                                 0
<TOTAL-ASSETS>                                  899778
<PAYABLE-FOR-SECURITIES>                         15364
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                        14036
<TOTAL-LIABILITIES>                              29400
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                        860210
<SHARES-COMMON-STOCK>                            16531<F1>
<SHARES-COMMON-PRIOR>                            16468<F1>
<ACCUMULATED-NII-CURRENT>                         (11)
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                        (18060)
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                         28239
<NET-ASSETS>                                    222496<F1>
<DIVIDEND-INCOME>                                 2696<F1>
<INTEREST-INCOME>                                  339<F1>
<OTHER-INCOME>                                     (6)<F1>
<EXPENSES-NET>                                  (6093)<F1>
<NET-INVESTMENT-INCOME>                         (3064)<F1>
<REALIZED-GAINS-CURRENT>                       (16263)
<APPREC-INCREASE-CURRENT>                      (31823)
<NET-CHANGE-FROM-OPS>                          (57162)
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                            0
<DISTRIBUTIONS-OF-GAINS>                       (10275)<F1>
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                           3249<F1>
<NUMBER-OF-SHARES-REDEEMED>                     (3863)<F1>
<SHARES-REINVESTED>                                677<F1>
<NET-CHANGE-IN-ASSETS>                        (182244)
<ACCUMULATED-NII-PRIOR>                           (10)
<ACCUMULATED-GAINS-PRIOR>                        36841
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                             2535<F1>
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                                   6093<F1>
<AVERAGE-NET-ASSETS>                            253431<F1>
<PER-SHARE-NAV-BEGIN>                            15.04<F1>
<PER-SHARE-NII>                                 (0.18)<F1>
<PER-SHARE-GAIN-APPREC>                         (0.77)<F1>
<PER-SHARE-DIVIDEND>                                 0
<PER-SHARE-DISTRIBUTIONS>                        (.63)<F1>
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                              13.46<F1>
<EXPENSE-RATIO>                                   2.41<F1>
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
<FN>
<F1>Class B only. All other data are fund level.
</FN>
        


</TABLE>

<TABLE> <S> <C>

 
<ARTICLE> 6
<SERIES>
        <NUMBER>024
        <NAME> SELIGMAN HENDERSON GLOBAL SMALLER COS FUND CLASS D
<MULTIPLIER> 1000
       
<S>                             <C>
<PERIOD-TYPE>                 12-MOS
<FISCAL-YEAR-END>                          OCT-31-1998
<PERIOD-END>                               OCT-31-1998
<INVESTMENTS-AT-COST>                           761941
<INVESTMENTS-AT-VALUE>                          797114
<RECEIVABLES>                                    49424
<ASSETS-OTHER>                                   53240
<OTHER-ITEMS-ASSETS>                                 0
<TOTAL-ASSETS>                                  899778
<PAYABLE-FOR-SECURITIES>                         15364
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                        14036
<TOTAL-LIABILITIES>                              29400
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                        860210
<SHARES-COMMON-STOCK>                            20273<F1>
<SHARES-COMMON-PRIOR>                            24624<F1>
<ACCUMULATED-NII-CURRENT>                         (11)
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                        (18060)
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                         28239
<NET-ASSETS>                                    272992<F1>
<DIVIDEND-INCOME>                                 3605<F1>
<INTEREST-INCOME>                                  450<F1>
<OTHER-INCOME>                                     (8)<F1>
<EXPENSES-NET>                                  (8184)<F1>
<NET-INVESTMENT-INCOME>                         (4137)<F1>
<REALIZED-GAINS-CURRENT>                       (16263)
<APPREC-INCREASE-CURRENT>                      (31823)
<NET-CHANGE-FROM-OPS>                          (57162)
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                            0
<DISTRIBUTIONS-OF-GAINS>                       (15358)<F1>
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                           5270<F1>
<NUMBER-OF-SHARES-REDEEMED>                    (10630)<F1>
<SHARES-REINVESTED>                               1009<F1>
<NET-CHANGE-IN-ASSETS>                        (182244)
<ACCUMULATED-NII-PRIOR>                           (10)
<ACCUMULATED-GAINS-PRIOR>                        36841
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                             3401<F1>
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                                   8184<F1>
<AVERAGE-NET-ASSETS>                            340277<F1>
<PER-SHARE-NAV-BEGIN>                            15.05<F1>
<PER-SHARE-NII>                                 (0.18)<F1>
<PER-SHARE-GAIN-APPREC>                         (0.77)<F1>
<PER-SHARE-DIVIDEND>                                 0
<PER-SHARE-DISTRIBUTIONS>                        (.63)<F1>
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                              13.47<F1>
<EXPENSE-RATIO>                                   2.41<F1>
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
<FN>
<F1>Class D only. All other data are fund level.
</FN>
        


</TABLE>

<TABLE> <S> <C>


<ARTICLE> 6
<SERIES>
        <NUMBER>031
        <NAME> SELIGMAN HENDERSON GLOBAL TECHNOLOGY FUND CLASS A
        <MULTIPLIER> 1000
       
<S>                             <C>
<PERIOD-TYPE>                 12-MOS
<FISCAL-YEAR-END>                          OCT-31-1998
<PERIOD-END>                               OCT-31-1998
<INVESTMENTS-AT-COST>                           612547
<INVESTMENTS-AT-VALUE>                          675071
<RECEIVABLES>                                   125333
<ASSETS-OTHER>                                   99718
<OTHER-ITEMS-ASSETS>                                 0
<TOTAL-ASSETS>                                  900122
<PAYABLE-FOR-SECURITIES>                        172405
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                         9159
<TOTAL-LIABILITIES>                             181564
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                        659032
<SHARES-COMMON-STOCK>                            38147<F1>
<SHARES-COMMON-PRIOR>                            38526<F1>
<ACCUMULATED-NII-CURRENT>                          (8)
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                              0
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                         59534
<NET-ASSETS>                                    475951<F1>
<DIVIDEND-INCOME>                                 2003<F1>
<INTEREST-INCOME>                                 1438<F1>
<OTHER-INCOME>                                   (209)<F1>
<EXPENSES-NET>                                  (9125)<F1>
<NET-INVESTMENT-INCOME>                         (5893)<F1>
<REALIZED-GAINS-CURRENT>                         46872
<APPREC-INCREASE-CURRENT>                      (39868)
<NET-CHANGE-FROM-OPS>                           (3992)
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                            0<F1>
<DISTRIBUTIONS-OF-GAINS>                       (99536)<F1>
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                          19325<F1>
<NUMBER-OF-SHARES-REDEEMED>                    (26894)<F1>
<SHARES-REINVESTED>                               7190<F1>
<NET-CHANGE-IN-ASSETS>                        (150627)
<ACCUMULATED-NII-PRIOR>                            (6)
<ACCUMULATED-GAINS-PRIOR>                       130196
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                             5462<F1>
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                                   9125<F1>
<AVERAGE-NET-ASSETS>                            546309<F1>
<PER-SHARE-NAV-BEGIN>                            15.14<F1>
<PER-SHARE-NII>                                 (0.14)<F1>
<PER-SHARE-GAIN-APPREC>                           0.07<F1>
<PER-SHARE-DIVIDEND>                                 0<F1>
<PER-SHARE-DISTRIBUTIONS>                       (2.59)<F1>
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                              12.48<F1>
<EXPENSE-RATIO>                                   1.67<F1>
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
<FN>
<F1>Class A only. All other data are fund level.
</FN>
        


</TABLE>

<TABLE> <S> <C>


<ARTICLE> 6
<SERIES>
        <NUMBER>032
        <NAME> SELIGMAN HENDERSON GLOBAL TECHNOLOGY FUND CLASS B
        <MULTIPLIER> 1000
       
<S>                             <C>
<PERIOD-TYPE>                 12-MOS
<FISCAL-YEAR-END>                          OCT-31-1998
<PERIOD-END>                               OCT-31-1998
<INVESTMENTS-AT-COST>                           612547
<INVESTMENTS-AT-VALUE>                          675071
<RECEIVABLES>                                   125333
<ASSETS-OTHER>                                   99718
<OTHER-ITEMS-ASSETS>                                 0
<TOTAL-ASSETS>                                  900122
<PAYABLE-FOR-SECURITIES>                        172405
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                         9159
<TOTAL-LIABILITIES>                             181564
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                        659032
<SHARES-COMMON-STOCK>                             4889<F1>
<SHARES-COMMON-PRIOR>                             3600<F1>
<ACCUMULATED-NII-CURRENT>                          (8)
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                              0
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                         59534
<NET-ASSETS>                                     58575<F1>
<DIVIDEND-INCOME>                                  224<F1>
<INTEREST-INCOME>                                  158<F1>
<OTHER-INCOME>                                    (23)<F1>
<EXPENSES-NET>                                  (1453)<F1>
<NET-INVESTMENT-INCOME>                         (1094)<F1>
<REALIZED-GAINS-CURRENT>                         46872
<APPREC-INCREASE-CURRENT>                      (39868)
<NET-CHANGE-FROM-OPS>                           (3992)
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                            0<F1>
<DISTRIBUTIONS-OF-GAINS>                        (9667)<F1>
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                           1534<F1>
<NUMBER-OF-SHARES-REDEEMED>                      (956)<F1>
<SHARES-REINVESTED>                                711<F1>
<NET-CHANGE-IN-ASSETS>                        (150627)
<ACCUMULATED-NII-PRIOR>                            (6)
<ACCUMULATED-GAINS-PRIOR>                       130196
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                              599<F1>
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                                   1453<F1>
<AVERAGE-NET-ASSETS>                             59898<F1>
<PER-SHARE-NAV-BEGIN>                            14.73<F1>
<PER-SHARE-NII>                                 (0.23)<F1>
<PER-SHARE-GAIN-APPREC>                           0.07<F1>
<PER-SHARE-DIVIDEND>                                 0<F1>
<PER-SHARE-DISTRIBUTIONS>                       (2.59)<F1>
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                              11.98<F1>
<EXPENSE-RATIO>                                   2.43<F1>
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
<FN>
<F1>Class B only. All other data are fund level.
</FN>
        


</TABLE>

<TABLE> <S> <C>


<ARTICLE> 6
<SERIES>
        <NUMBER>034
        <NAME> SELIGMAN HENDERSON GLOBAL TECHNOLOGY FUND CLASS D
        <MULTIPLIER> 1000
       
<S>                             <C>
<PERIOD-TYPE>                 12-MOS
<FISCAL-YEAR-END>                          OCT-31-1998
<PERIOD-END>                               OCT-31-1998
<INVESTMENTS-AT-COST>                           612547
<INVESTMENTS-AT-VALUE>                          675071
<RECEIVABLES>                                   125333
<ASSETS-OTHER>                                   99718
<OTHER-ITEMS-ASSETS>                                 0
<TOTAL-ASSETS>                                  900122
<PAYABLE-FOR-SECURITIES>                        172405
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                         9159
<TOTAL-LIABILITIES>                             181564
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                        659032
<SHARES-COMMON-STOCK>                            15383<F1>
<SHARES-COMMON-PRIOR>                            15805<F1>
<ACCUMULATED-NII-CURRENT>                          (8)
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                              0
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                         59534
<NET-ASSETS>                                    184032<F1>
<DIVIDEND-INCOME>                                  799<F1>
<INTEREST-INCOME>                                  575<F1>
<OTHER-INCOME>                                    (83)<F1>
<EXPENSES-NET>                                  (5300)<F1>
<NET-INVESTMENT-INCOME>                         (4009)<F1>
<REALIZED-GAINS-CURRENT>                         46872
<APPREC-INCREASE-CURRENT>                      (39868)
<NET-CHANGE-FROM-OPS>                           (3992)
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                            0<F1>
<DISTRIBUTIONS-OF-GAINS>                       (41021)<F1>
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                          10766<F1>
<NUMBER-OF-SHARES-REDEEMED>                    (14259)<F1>
<SHARES-REINVESTED>                               3071<F1>
<NET-CHANGE-IN-ASSETS>                        (150627)
<ACCUMULATED-NII-PRIOR>                            (6)
<ACCUMULATED-GAINS-PRIOR>                       130196
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                             2186<F1>
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                                   5300<F1>
<AVERAGE-NET-ASSETS>                            218521<F1>
<PER-SHARE-NAV-BEGIN>                            14.73<F1>
<PER-SHARE-NII>                                 (0.23)<F1>
<PER-SHARE-GAIN-APPREC>                           0.05<F1>
<PER-SHARE-DIVIDEND>                                 0<F1>
<PER-SHARE-DISTRIBUTIONS>                       (2.59)<F1>
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                              11.96<F1>
<EXPENSE-RATIO>                                   2.43<F1>
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
<FN>
<F1>Class D only. All other data are fund level.
</FN>
        


</TABLE>

<TABLE> <S> <C>


<ARTICLE> 6
<SERIES>
     <NUMBER>041
     <NAME> SELIGMAN HENDERSON GLOBAL GROWTH OPPORTUNITIES FUND CLASS A
        <MULTIPLIER> 1000
       
<S>                             <C>
<PERIOD-TYPE>                  12-MOS
<FISCAL-YEAR-END>                          OCT-31-1998
<PERIOD-END>                               OCT-31-1998
<INVESTMENTS-AT-COST>                           122096
<INVESTMENTS-AT-VALUE>                          170367
<RECEIVABLES>                                     5619
<ASSETS-OTHER>                                   12751
<OTHER-ITEMS-ASSETS>                                 0
<TOTAL-ASSETS>                                  188737
<PAYABLE-FOR-SECURITIES>                          1494
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                         2923
<TOTAL-LIABILITIES>                               4417
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                        137081
<SHARES-COMMON-STOCK>                            10177<F1>
<SHARES-COMMON-PRIOR>                            11847<F1>
<ACCUMULATED-NII-CURRENT>                          (3)
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                            387
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                         46855
<NET-ASSETS>                                     97947<F1>
<DIVIDEND-INCOME>                                 1163<F1>
<INTEREST-INCOME>                                  146<F1>
<OTHER-INCOME>                                    (80)<F1>
<EXPENSES-NET>                                  (1836)<F1>
<NET-INVESTMENT-INCOME>                          (607)<F1>
<REALIZED-GAINS-CURRENT>                           387
<APPREC-INCREASE-CURRENT>                        16960
<NET-CHANGE-FROM-OPS>                            15567
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                            0
<DISTRIBUTIONS-OF-GAINS>                        (4861)<F1>
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                           3584<F1>
<NUMBER-OF-SHARES-REDEEMED>                     (5755)<F1>
<SHARES-REINVESTED>                                501<F1>
<NET-CHANGE-IN-ASSETS>                          (8351)
<ACCUMULATED-NII-PRIOR>                            (3)
<ACCUMULATED-GAINS-PRIOR>                         7210
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                             1092<F1>
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                                   1836<F1>
<AVERAGE-NET-ASSETS>                            109231<F1>
<PER-SHARE-NAV-BEGIN>                             9.20<F1>
<PER-SHARE-NII>                                 (0.05)<F1>
<PER-SHARE-GAIN-APPREC>                           0.89<F1>
<PER-SHARE-DIVIDEND>                                 0
<PER-SHARE-DISTRIBUTIONS>                       (0.42)<F1>
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                               9.62<F1>
<EXPENSE-RATIO>                                   1.68<F1>
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
<FN>
<F1>Class A only. All other data are fund level.
</FN>
        


</TABLE>

<TABLE> <S> <C>


<ARTICLE> 6
<SERIES>
        <NUMBER>042
        <NAME> SELIGMAN HENDERSON GLOBAL GROWTH OPPORTUNITIES FUND CLASS B
        <MULTIPLIER> 1000
       
<S>                             <C>
<PERIOD-TYPE>                  12-MOS
<FISCAL-YEAR-END>                          OCT-31-1998
<PERIOD-END>                               OCT-31-1998
<INVESTMENTS-AT-COST>                           122096
<INVESTMENTS-AT-VALUE>                          170367
<RECEIVABLES>                                     5619
<ASSETS-OTHER>                                   12751
<OTHER-ITEMS-ASSETS>                                 0
<TOTAL-ASSETS>                                  188737
<PAYABLE-FOR-SECURITIES>                          1494
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                         2923
<TOTAL-LIABILITIES>                               4417
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                        137081
<SHARES-COMMON-STOCK>                             2333<F1>
<SHARES-COMMON-PRIOR>                             2130<F1>
<ACCUMULATED-NII-CURRENT>                          (3)
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                            387
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                         46855
<NET-ASSETS>                                     21930<F1>
<DIVIDEND-INCOME>                                  227<F1>
<INTEREST-INCOME>                                   29<F1>
<OTHER-INCOME>                                    (16)<F1>
<EXPENSES-NET>                                   (524)<F1>
<NET-INVESTMENT-INCOME>                          (284)<F1>
<REALIZED-GAINS-CURRENT>                           387
<APPREC-INCREASE-CURRENT>                        16960
<NET-CHANGE-FROM-OPS>                            15567
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                            0
<DISTRIBUTIONS-OF-GAINS>                         (875)<F1>
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                            857<F1>
<NUMBER-OF-SHARES-REDEEMED>                      (740)<F1>
<SHARES-REINVESTED>                                 86<F1>
<NET-CHANGE-IN-ASSETS>                          (8351)
<ACCUMULATED-NII-PRIOR>                            (3)
<ACCUMULATED-GAINS-PRIOR>                         7210
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                              214<F1>
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                                    524<F1>
<AVERAGE-NET-ASSETS>                             21399<F1>
<PER-SHARE-NAV-BEGIN>                             9.06<F1>
<PER-SHARE-NII>                                 (0.12)<F1>
<PER-SHARE-GAIN-APPREC>                           0.88<F1>
<PER-SHARE-DIVIDEND>                                 0
<PER-SHARE-DISTRIBUTIONS>                       (0.42)<F1>
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                               9.40<F1>
<EXPENSE-RATIO>                                   2.44<F1>
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
<FN>
<F1>Class B only. All other data are fund level.
</FN>
        


</TABLE>

<TABLE> <S> <C>


<ARTICLE> 6
<SERIES>
        <NUMBER>044
        <NAME> SELIGMAN HENDERSON GLOBAL GROWTH OPPORTUNITIES FUND CLASS D
        <MULTIPLIER> 1000
       
<S>                             <C>
<PERIOD-TYPE>                  12-MOS
<FISCAL-YEAR-END>                          OCT-31-1998
<PERIOD-END>                               OCT-31-1998
<INVESTMENTS-AT-COST>                           122096
<INVESTMENTS-AT-VALUE>                          170367
<RECEIVABLES>                                     5619
<ASSETS-OTHER>                                   12751
<OTHER-ITEMS-ASSETS>                                 0
<TOTAL-ASSETS>                                  188737
<PAYABLE-FOR-SECURITIES>                          1494
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                         2923
<TOTAL-LIABILITIES>                               4417
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                        137081
<SHARES-COMMON-STOCK>                             6857<F1>
<SHARES-COMMON-PRIOR>                             7093<F1>
<ACCUMULATED-NII-CURRENT>                          (3)
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                            387
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                         46855
<NET-ASSETS>                                     64443<F1>
<DIVIDEND-INCOME>                                  720<F1>
<INTEREST-INCOME>                                   92<F1>
<OTHER-INCOME>                                    (49)<F1>
<EXPENSES-NET>                                  (1652)<F1>
<NET-INVESTMENT-INCOME>                          (889)<F1>
<REALIZED-GAINS-CURRENT>                           387
<APPREC-INCREASE-CURRENT>                        16960
<NET-CHANGE-FROM-OPS>                            15567
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                            0
<DISTRIBUTIONS-OF-GAINS>                        (2901)<F1>
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                           1953<F1>
<NUMBER-OF-SHARES-REDEEMED>                     (2492)<F1>
<SHARES-REINVESTED>                                303<F1>
<NET-CHANGE-IN-ASSETS>                          (8351)
<ACCUMULATED-NII-PRIOR>                            (3)
<ACCUMULATED-GAINS-PRIOR>                         7210
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                              676<F1>
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                                   1652<F1>
<AVERAGE-NET-ASSETS>                             67590<F1>
<PER-SHARE-NAV-BEGIN>                             9.06<F1>
<PER-SHARE-NII>                                 (0.12)<F1>
<PER-SHARE-GAIN-APPREC>                           0.88<F1>
<PER-SHARE-DIVIDEND>                                 0
<PER-SHARE-DISTRIBUTIONS>                       (0.42)<F1>
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                               9.40<F1>
<EXPENSE-RATIO>                                   2.44<F1>
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
<FN>
<F1>Class D only. All other data are fund level.
</FN>
        


</TABLE>

<TABLE> <S> <C>


<ARTICLE> 6
<SERIES>
     <NUMBER>051
     <NAME> SELIGMAN HENDERSON EMERGING MARKETS GROWTH FUND CLASS A
<MULTIPLIER> 1000
       
<S>                             <C>
<PERIOD-TYPE>                  12-MOS
<FISCAL-YEAR-END>                          OCT-31-1998
<PERIOD-END>                               OCT-31-1998
<INVESTMENTS-AT-COST>                            55804
<INVESTMENTS-AT-VALUE>                           50913
<RECEIVABLES>                                     1275
<ASSETS-OTHER>                                    5060
<OTHER-ITEMS-ASSETS>                                 0
<TOTAL-ASSETS>                                   57248
<PAYABLE-FOR-SECURITIES>                          2881
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                          375
<TOTAL-LIABILITIES>                               3256
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                         81771
<SHARES-COMMON-STOCK>                             4689<F1>
<SHARES-COMMON-PRIOR>                             6002<F1>
<ACCUMULATED-NII-CURRENT>                          (2)
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                        (22889)
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                        (4888)
<NET-ASSETS>                                     24294<F1>
<DIVIDEND-INCOME>                                  555<F1>
<INTEREST-INCOME>                                  189<F1>
<OTHER-INCOME>                                   (174)<F1>
<EXPENSES-NET>                                   (785)<F1>
<NET-INVESTMENT-INCOME>                          (215)<F1>
<REALIZED-GAINS-CURRENT>                       (19266)
<APPREC-INCREASE-CURRENT>                       (4665)
<NET-CHANGE-FROM-OPS>                          (24801)
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                            0
<DISTRIBUTIONS-OF-GAINS>                             0<F1>
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                           4467<F1>
<NUMBER-OF-SHARES-REDEEMED>                     (5780)<F1>
<SHARES-REINVESTED>                                  0<F1>
<NET-CHANGE-IN-ASSETS>                         (50147)
<ACCUMULATED-NII-PRIOR>                            (1)
<ACCUMULATED-GAINS-PRIOR>                       (3622)
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                              443<F1>
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                                    785<F1>
<AVERAGE-NET-ASSETS>                             35453<F1>
<PER-SHARE-NAV-BEGIN>                             7.34<F1>
<PER-SHARE-NII>                                 (0.01)<F1>
<PER-SHARE-GAIN-APPREC>                         (2.15)<F1>
<PER-SHARE-DIVIDEND>                                 0
<PER-SHARE-DISTRIBUTIONS>                            0
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                               5.18<F1>
<EXPENSE-RATIO>                                   2.22<F1>
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
<FN>
<F1>Class A only. All other data are fund level.
</FN>
        


</TABLE>

<TABLE> <S> <C>


<ARTICLE> 6
<SERIES>
        <NUMBER>052
        <NAME> SELIGMAN HENDERSON EMERGING MARKETS GROWTH FUND CLASS B
<MULTIPLIER> 1000
       
<S>                             <C>
<PERIOD-TYPE>                  12-MOS
<FISCAL-YEAR-END>                          OCT-31-1998
<PERIOD-END>                               OCT-31-1998
<INVESTMENTS-AT-COST>                            55804
<INVESTMENTS-AT-VALUE>                           50913
<RECEIVABLES>                                     1275
<ASSETS-OTHER>                                    5060
<OTHER-ITEMS-ASSETS>                                 0
<TOTAL-ASSETS>                                   57248
<PAYABLE-FOR-SECURITIES>                          2881
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                          375
<TOTAL-LIABILITIES>                               3256
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                         81771
<SHARES-COMMON-STOCK>                             3151<F1>
<SHARES-COMMON-PRIOR>                             3966<F1>
<ACCUMULATED-NII-CURRENT>                          (2)
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                        (22889)
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                        (4888)
<NET-ASSETS>                                     16031<F1>
<DIVIDEND-INCOME>                                  379<F1>
<INTEREST-INCOME>                                  128<F1>
<OTHER-INCOME>                                   (119)<F1>
<EXPENSES-NET>                                   (724)<F1>
<NET-INVESTMENT-INCOME>                          (336)<F1>
<REALIZED-GAINS-CURRENT>                       (19266)
<APPREC-INCREASE-CURRENT>                       (4665)
<NET-CHANGE-FROM-OPS>                          (24801)
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                            0
<DISTRIBUTIONS-OF-GAINS>                             0<F1>
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                            643<F1>
<NUMBER-OF-SHARES-REDEEMED>                     (1458)<F1>
<SHARES-REINVESTED>                                  0<F1>
<NET-CHANGE-IN-ASSETS>                         (50147)
<ACCUMULATED-NII-PRIOR>                            (1)
<ACCUMULATED-GAINS-PRIOR>                       (3622)
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                              303<F1>
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                                    724<F1>
<AVERAGE-NET-ASSETS>                             24203<F1>
<PER-SHARE-NAV-BEGIN>                             7.27<F1>
<PER-SHARE-NII>                                 (0.06)<F1>
<PER-SHARE-GAIN-APPREC>                         (2.12)<F1>
<PER-SHARE-DIVIDEND>                                 0
<PER-SHARE-DISTRIBUTIONS>                            0
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                               5.09<F1>
<EXPENSE-RATIO>                                   2.99<F1>
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
<FN>
<F1>Class B only. All other data are fund level.
</FN>
        


</TABLE>

<TABLE> <S> <C>


<ARTICLE> 6
<SERIES>
          <NUMBER>054
          <NAME> SELIGMAN HENDERSON EMERGING MARKETS GROWTH FUND CLASS D
<MULTIPLIER> 1000
       
<S>                             <C>
<PERIOD-TYPE>                  12-MOS
<FISCAL-YEAR-END>                          OCT-31-1998
<PERIOD-END>                               OCT-31-1998
<INVESTMENTS-AT-COST>                            55804
<INVESTMENTS-AT-VALUE>                           50913
<RECEIVABLES>                                     1275
<ASSETS-OTHER>                                    5060
<OTHER-ITEMS-ASSETS>                                 0
<TOTAL-ASSETS>                                   57248
<PAYABLE-FOR-SECURITIES>                          2881
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                          375
<TOTAL-LIABILITIES>                               3256
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                         81771
<SHARES-COMMON-STOCK>                             2683<F1>
<SHARES-COMMON-PRIOR>                             4302<F1>
<ACCUMULATED-NII-CURRENT>                          (2)
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                        (22889)
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                        (4888)
<NET-ASSETS>                                     13667<F1>
<DIVIDEND-INCOME>                                  360<F1>
<INTEREST-INCOME>                                  124<F1>
<OTHER-INCOME>                                   (114)<F1>
<EXPENSES-NET>                                   (689)<F1>
<NET-INVESTMENT-INCOME>                          (319)<F1>
<REALIZED-GAINS-CURRENT>                       (19266)
<APPREC-INCREASE-CURRENT>                       (4665)
<NET-CHANGE-FROM-OPS>                          (24801)
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                            0
<DISTRIBUTIONS-OF-GAINS>                             0<F1>
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                            893<F1>
<NUMBER-OF-SHARES-REDEEMED>                     (2512)<F1>
<SHARES-REINVESTED>                                  0<F1>
<NET-CHANGE-IN-ASSETS>                         (50147)
<ACCUMULATED-NII-PRIOR>                            (1)
<ACCUMULATED-GAINS-PRIOR>                       (3622)
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                              288<F1>
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                                    689<F1>
<AVERAGE-NET-ASSETS>                             23066<F1>
<PER-SHARE-NAV-BEGIN>                             7.27<F1>
<PER-SHARE-NII>                                 (0.06)<F1>
<PER-SHARE-GAIN-APPREC>                         (2.12)<F1>
<PER-SHARE-DIVIDEND>                                 0
<PER-SHARE-DISTRIBUTIONS>                            0
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                               5.09<F1>
<EXPENSE-RATIO>                                   2.99<F1>
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
<FN>
<F1>Class D only. All other data are fund level.
</FN>
        


</TABLE>


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