SELIGMAN CAPITAL FUND INC
485APOS, 1999-02-24
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                                                                File No. 2-33566
                                                                        811-1886

                                   ----------

                       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. 55                                     |X|
    


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

   
         Amendment No. 30                                                    |X|
    


                           SELIGMAN CAPITAL FUND, INC.
               (Exact name of registrant as specified in charter)


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


                 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):

   
|_|  immediately upon filing pursuant to paragraph (b)

|X|  on May 1, 1999 pursuant to paragraph (a)(1)
    

|_|  on (date) pursuant to paragraph (b)

|_|  75 days after filing pursuant to paragraph (a)(2)

|_|  60 days after filing pursuant to paragraph (a)(1)

|_|  on (date) pursuant to paragraph (a)(2) of rule 485.


If appropriate, check the following box:

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



<PAGE>



                                    SELIGMAN
                                     CAPITAL
                                  FUND, INC.

                                                          [CLOCK GRAPHIC]
                                                            PROSPECTUS

                                                            MAY 1, 1999

                                                          Seeking Capital
                                                           Appreciation
                                                         by Investing in
                                                       Mid-Capitalization
                                                           Growth Stocks

                                                            managed by
                                                   [J. & W. SELIGMAN & CO. LOGO]
                                                       J. & W. SELIGMAN & CO.
                                                           INCORPORATED
                                                         ESTABLISHED 1864


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

An investment in this Fund or any other fund cannot provide a complete 
investment program. The suitability of an investment in the Fund should be 
considered 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 this Fund is suitable 
for you.

EQCA1 5/99

<PAGE>

Table of Contents

THE FUND

     Investment Objective/Principal Strategies   1
     Principal Risks   2
     Past Performance   3
     Fees and Expenses   4
     Management   5
     Year 2000   6

SHAREHOLDER INFORMATION

     Deciding Which Class of Shares to Buy   7
     Pricing of Fund Shares   9
     Opening Your Account   9
     How to Buy Additional Shares   10
     How to Exchange Shares Between
       The Seligman Mutual Funds   11
     How to Sell Shares   11
     Important Policies That May Affect
       Your Account   12
     Dividends and Capital Gain Distributions   13
     Taxes   13
     The Seligman Mutual Funds   14

FINANCIAL HIGHLIGHTS   15

HOW TO CONTACT US   17

FOR MORE INFORMATION   back cover

T I M E S   C H A N G E  ...  V A L U E S   E N D U R E

[CLOCK GRAPHIC IN BACKGROUND]

<PAGE>
 
The Fund
 
INVESTMENT OBJECTIVE/PRINCIPAL STRATEGIES
 
The Fund's objective is capital appreciation.
 
The Fund uses the following principal strategies to seek its objective:
 
Generally, the Fund invests primarily in the common stock of medium-sized US
companies. Common stocks are chosen for the Fund using both quantitative and
fundamental analysis. This means the investment manager first screens companies
for past growth in sales and earnings, as well as a strong balance sheet (e.g.,
low ratio of debt to total capital). In selecting individual securities for
investment, the investment manager then looks to identify medium-sized companies
that it believes display one or more of the following:
 
     - Proven track record
     - Strong management
     - Multiple product lines
     - Potential for improvement in overall operations (i.e., catalyst for
       growth in revenues and/or earnings)
     - Positive supply and demand outlook for its industry
 
The investment manager also looks at the forecasted earnings of a company
considered for investment to determine if the company has the potential for
above-average growth.
 
The Fund will generally sell a stock when the investment manager believes that
the company or industry fundamentals have deteriorated or the company's catalyst
for growth is already reflected in the stock's price (i.e., the stock is fully
valued).
 
Although the Fund generally concentrates it investments in common stocks, it may
invest in preferred stocks, securities convertible into common stocks, common
stock rights or warrants, and debt securities if the investment manager believes
they offer capital appreciation opportunities. The Fund may also hold cash, US
Government securities, commercial paper, or other investment grade 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.
 
The Fund may invest up to 15% of its net assets in illiquid securities (i.e.,
securities that cannot be readily sold) and may invest up to 10% of its total
assets directly in foreign securities. The Fund may borrow money from time to
time to purchase securities. The Fund generally does not invest a significant
amount, if any, in illiquid or foreign securities.
 
The Fund may change its principal strategies if the Fund's Board of Directors
believes doing so is consistent with the Fund's investment objective.
 
The Fund's objective is a fundamental policy and may be changed only with the
approval of shareholders. As with any mutual fund, there is no guarantee the
Fund will achieve its objective.
 
                                        1

<PAGE>
 
PRINCIPAL RISKS
 
Stock prices fluctuate. Therefore, as with any fund that invests in stocks, the
Fund's net asset value will fluctuate, especially in the short term. You may
experience a decline in the value of your investment and you could lose money.
 
The Fund's performance may be affected by the broad investment environment in
the US or international securities markets, which is influenced by, among other
things, interest rates, inflation, politics, fiscal policy, and current events.
 
Concentration of investments in any one industry is avoided, except under
unusual circumstances. The Fund may, however, invest more heavily in certain
industries believed to offer good investment opportunities. To the extent that
an industry in which the Fund is invested falls out of favor, the Fund's
performance may be negatively affected.
 
To the extent that the Fund invests some of its assets in higher-risk
securities, such as foreign securities or illiquid securities, it may be subject
to higher price volatility. Investing in securities of foreign issuers involves
risks not associated with US investments, including currency fluctuations,
foreign taxation, differences in financial reporting practices, and changes in
political conditions.
 
The Fund may actively and frequently trade securities in its portfolio to carry
out its principal strategies, or for other reasons. A high Fund turnover rate
results in correspondingly greater transaction costs for the Fund and a possible
increase in short-term capital gains and losses.
 
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.
 
                                        2

<PAGE>
 
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 one widely-used measure of midcap stock performance and
one measure of performance of mutual funds with investment objectives similar to
the Fund.
 
The following performance information is designed 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
[SELIGMAN CALENDAR GRAPH]
 
<TABLE>
<CAPTION>
1989      1990       1991       1992       1993       1994       1995       1996       1997    1998
- ----     ------     ------     ------     ------     ------     ------     ------     -----   -------
<S>     <C>         <C>        <C>        <C>        <C>        <C>        <C>        <C>      <C>
32.4%     1.4%      54.7%       11.6%      4.8%       -7.1%      37.3%      16.7%      22.3    19.1%

</TABLE>
 
            Best calendar quarter return: XX.X% - quarter ended  ___
           Worst calendar quarter return: XX.X% - quarter ended  ___
 
<TABLE>
<CAPTION>
                 AVERAGE ANNUAL TOTAL RETURNS - PERIODS ENDED 12/31/98
                                                          CLASS B           CLASS D
                               ONE    FIVE     TEN    SINCE INCEPTION   SINCE INCEPTION
                              YEAR    YEARS   YEARS       4/22/96           5/3/95
                              -----   -----   -----   ---------------   ---------------
<S>                           <C>     <C>     <C>     <C>               <C>
Class A                       13.48%  15.62%  17.51%          --                --
Class B                       13.24    n/a     n/a        15.68%                --
Class D                       17.23   15.57    n/a            --            15.20%
Russell Midcap Growth Index   17.86   17.33   17.30        17.02(1)          18.01(2)
Lipper Mid Cap Funds Average  11.37   15.44   16.51        13.93(1)          16.60(2)
</TABLE>
 
The Russell Midcap Growth Index and the Lipper Mid Cap Funds Average are
unmanaged benchmarks that assume the reinvestment of dividends and capital gain
distributions. The Lipper Mid Cap Funds Average does not reflect any sales
charges and the Russell Midcap Growth Index does not reflect any fees or sales
charges. The Russell Midcap Growth Index measures the performance of mid-cap
growth stocks, and the Lipper Mid Cap Funds Average measures the performance of
mutual funds with investment objectives similar to the Fund.
(1) From April 30, 1996.
(2) From April 30, 1993.
 
                                        3

<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 Contingent 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%
</TABLE>
 
<TABLE>
<CAPTION>
          ANNUAL FUND OPERATING EXPENSES FOR 1998
          ---------------------------------------
<S>                                                               <C>          <C>          <C>
(as a percentage of average net assets)
Management Fees.............................................        .48%         .48%         .48%
Distribution and/or Service (12b-1) Fees....................        .24%        1.00%        1.00%
Other Expenses..............................................        .27%         .27%         .27%
                                                                   -----        -----        -----
Total Annual Fund Operating Expenses........................        .99%        1.75%        1.75%
                                                                   =====        =====        =====
</TABLE>
 
(1) If you buy Class A shares for $1,000,000 or more you will 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:
 
<TABLE>
<CAPTION>
                                                                 1 YEAR         3 YEARS       5 YEARS       10 YEARS
                                                                 ------         -------       -------       --------
<S>                                           <C>                <C>            <C>           <C>           <C>
                                              Class A             $             $             $              $
                                              Class B
                                              Class D
</TABLE>
 
                                If you did not sell your shares at the end of
                                each period, your expenses would be:
 
<TABLE>
<CAPTION>
                                                                 1 YEAR         3 YEARS       5 YEARS       10 YEARS
                                                                 ------         -------       -------       --------
<S>                                           <C>                <C>            <C>           <C>           <C>
                                              Class A             $             $             $              $
                                              Class B
                                              Class D
</TABLE>
 
                                + Class B shares will automatically convert to
                                  Class A shares after eight years.
 
Management Fees:
Fees paid out of Fund assets to
the investment manager to
compensate it for managing the
Fund.

12b-1 Fees:
Fees paid by each Class,
pursuant to a plan adopted by
the Fund under Rule 12b-1 of the
Investment Company Act of 1940.
The plan allows each Class to
pay distribution and/or service
fees for the sale and
distribution of its shares and
for providing services to
shareholders.

Other Expenses:
Miscellaneous expenses of
running the Fund, including such
things as transfer agency,
registration, custody, and
auditing and legal fees.
 
                                        4

<PAGE>
 
MANAGEMENT
 
The Fund's Board of Directors provides broad supervision over the affairs of the
Fund.
 
The Fund's manager is J. & W. Seligman & Co. Incorporated (Seligman), 100 Park
Avenue, New York, New York 10017. Seligman manages the investment of the Fund's
assets, including making purchases and sales of portfolio securities consistent
with the Fund's investment objective and strategies, and administers the 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 $XX.X billion in assets as of March 31, 1999. Seligman also
provides investment management or advice to institutional or other accounts
having an aggregate value at March 31, 1999, of approximately $XX.X billion.
 
The Fund pays Seligman a fee for its management services. The fee rate equals a
percentage of the daily net assets of the Fund. The rate is calculated on a
sliding scale of 0.55% to 0.45% based on the average daily net assets of all US
registered investment companies managed by Seligman. The fee paid by the Fund to
Seligman for the Fund's fiscal year ended December 31, 1998 was .48% of the
Fund's average daily net assets.
 
      AFFILIATES OF SELIGMAN:
 
      Seligman Advisors, Inc. (Seligman Advisors):
      The 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 financial
      advisor.
 
      Seligman Data Corp. (SDC):
      The Fund's shareholder service agent; provides shareholder account
      services to the Fund at cost.
 
PORTFOLIO MANAGEMENT
 
The Fund is managed by the Seligman Growth Team, headed by Marion S. Schultheis.
Ms. Schultheis joined Seligman in May 1998 as a Managing Director. She is a Vice
President of the Fund and has been Portfolio Manager of the Fund since joining
Seligman. Prior to joining Seligman, Ms. Schultheis was a Managing Director at
Chancellor LGT from October 1997 to May 1998 and Senior Portfolio Manager at IDS
Advisory Group Inc. from August 1987 to October 1997. Ms. Schultheis also
manages Seligman Growth Fund, Inc. and co-manages Seligman Henderson Global
Growth Opportunities Fund, a series of Seligman Henderson Global Fund Series,
Inc; and she manages the Seligman Capital Portfolio and the Seligman Large-Cap
Growth Portfolio and co-manages the Seligman Henderson Global Growth
Opportunities Portfolio, three portfolios of Seligman Portfolios, Inc.
 
                                        5

<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 Fund relies upon
service providers and their computer systems for its day-to-day operations. Many
of the Fund's 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 Fund's
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 Board of Directors of the Fund and its Audit
Committee.
 
The team has identified the service providers and vendors who furnish critical
services or software systems to the Fund, including securities firms that
execute portfolio transactions for the Fund 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 Fund. 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 Fund. The team anticipates
finalizing these plans in the near future.
 
The Fund anticipates 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 Fund believes that the
critical systems on which it relies will function properly on and after the year
2000, but this is not guaranteed. If these systems do not function properly, or
the Fund's critical service providers are not successful in implementing their
year 2000 plans, the Fund's operations may be adversely affected, including
pricing, securities trading and settlement, and the provision of shareholder
services.
 
In addition, the Fund may hold securities of issuers whose underlying business
leaves them susceptible to year 2000 issues. The Fund 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 Fund holds these securities, the Fund's 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 Fund 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 Fund 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.
 
                                        6

<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:
 
   - The amount you plan to invest.
 
   - How long you intend to remain invested in the Fund, or another Seligman
     mutual fund.
 
   - 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.
 
   - 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.
 
 CLASS A
 
   - Initial sales charge on Fund purchases, as set forth below:
 
<TABLE>
<CAPTION>
                                         SALES CHARGE              SALES CHARGE           REGULAR DEALER
                                            AS A %                    AS A %                 DISCOUNT
                                          OF OFFERING                 OF NET                AS A % OF
  AMOUNT OF YOUR INVESTMENT                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
</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.
 
   - Annual 12b-1 fee (for shareholder services) of up to 0.25%.
 
   - No sales charge on reinvested dividends or capital gain distributions.
 
 CLASS B
 
   - No initial sales charge on purchases.
 
   - A declining CDSC on shares sold within 6 years of purchase:
 
<TABLE>
<CAPTION>
      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
</TABLE>
 
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.
 
   - Annual 12b-1 fee (for distribution and shareholder services) of 1.00%.
 
   - Automatic conversion to Class A shares after eight years, resulting in
     lower ongoing 12b-1 fees.
 
   - No CDSC on redemptions of shares purchased with reinvested dividends or
     capital gain distributions.
 
                                        7

<PAGE>
 
 CLASS D
 
    - No initial sales charge on purchases.
    - A 1% CDSC on shares sold within one year of purchase.
    - Annual 12b-1 fee (for distribution and shareholder services) of 1.00%.
    - No automatic conversion to Class A shares, so you will be subject to
      higher ongoing 12b-1 fees indefinitely.
    - No CDSC on redemptions of shares purchased with reinvested dividends or
      capital gain distributions.
 
Because 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 Fund's Board of Directors believes that no conflict of interest currently
exists between the 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, the 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 the 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 the Fund, it will be assumed that you held the shares since the date you
purchased the shares of the Fund.
 
                                        8

<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.

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 the Fund's shares is determined each day, Monday through Friday, on
days that the NYSE is open for trading. 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.
 
Securities owned by the Fund are valued at current market prices. If reliable
market prices are unavailable, securities are valued in accordance with
procedures approved by the Fund's Board of Directors.
 
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.
 
OPENING YOUR ACCOUNT
 
The Fund's 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 the 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.

The required minimum initial investments are:
       - Regular (non-retirement) accounts: $1,000
 
       - 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
 
YOU MAY BUY SHARES OF THE 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.
 
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 Fund purchase, and any subsequent
transactions in your account. You will also be sent at least annually, a
statement detailing all your transactions in the 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.
 
                                       9

<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. 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 MATRIX(SM).  (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.
 

                                       10

<PAGE>
 
HOW TO EXCHANGE SHARES BETWEEN 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 Fund
shares. 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 the 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 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 Fund 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:
     - a corporation;
     - an executor or administrator;
     - a trustee or custodian; or
     - 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 the 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.
 

                                       11

<PAGE>
 
IMPORTANT POLICIES THAT MAY AFFECT YOUR ACCOUNT
 
To protect you and other shareholders, the Fund reserves the right to:
 
     - 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.
 
     - Refuse any request to buy Fund shares.
 
     - Reject any request received by telephone.
 
     - Suspend or terminate telephone services.
 
     - Reject a signature guarantee that SDC believes may be fraudulent.
 
     - Close your fund account if its value falls below $500.
 
     - 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:
 
     - Sell uncertificated shares (up to $50,000 per day, payable to account
       owner(s) and mailed to address of record)
 
     - Exchange shares between funds
 
     - Change dividend and/or capital gain distribution options
 
     - Change your address
 
     - 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.
 
Restrictions apply to certain types of accounts:
 
     - Trust accounts on which the current trustee is not listed may not sell
       Fund shares by phone.
 
     - Corporations may not sell Fund shares by phone.
 
     - IRAs may only exchange Fund shares or request address changes by phone.
 
     - 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. The Fund's
NAV may fluctuate during this time.
 
The Fund 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 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.
 
                                       12

<PAGE>
 
DIVIDENDS AND CAPITAL GAIN DISTRIBUTIONS
 
The Fund generally pays any dividends from its net investment income and
distributes net capital gains realized on investments annually. It is expected
that the Fund's distributions will be primarily capital gains.
                           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.
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.
 
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.
 
                                       13

<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.
 
<TABLE>
<S>                  <C>                   <C>
California           Louisiana             New Jersey
 -High-Yield         Maryland              New York
 -Quality            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.
</TABLE>
 
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.
 
                                       14

<PAGE>
 
Financial Highlights
 
The tables below are intended to help you understand each Class's financial
performance 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.
                    ,                     independent auditors, have audited
this information. Their report, along with the Fund's financial statements, is
included in the Fund's annual report, which is available upon request.
 
CLASS A
 
<TABLE>
<CAPTION>
                                                          YEAR ENDED DECEMBER 31,
                                            ----------------------------------------------------
                                              1998       1997       1996       1995       1994
                                              ----       ----       ----       ----       ----
<S>                                         <C>        <C>        <C>        <C>        <C>
PER SHARE DATA:*
Net asset value, beginning of period......    $17.48     $16.36     $15.59     $13.17     $15.95
                                              ------     ------     ------     ------     ------
Income from investment operations:
  Net investment income...................     (0.04)     (0.06)     (0.04)     (0.02)     (0.06)
  Net gains or losses on securities (both
     realized and unrealized).............      3.30       3.61       2.68       4.74      (1.12)
                                              ------     ------     ------     ------     ------
Total from investment operations..........      3.26       3.55       2.64       4.72      (1.18)
                                              ------     ------     ------     ------     ------
Less distributions:
  Distributions (from capital gains)......     (0.68)     (2.43)     (1.87)     (2.30)     (1.60)
                                              ------     ------     ------     ------     ------
          Total distributions.............     (0.68)     (2.43)     (1.87)     (2.30)     (1.60)
                                              ------     ------     ------     ------     ------
Net asset value, end of period............    $20.06     $17.48     $16.36     $15.59     $13.17
                                              ======     ======     ======     ======     ======
Total return..............................    19.12%     22.28%     16.74%     37.32%    (7.06)%
RATIOS/SUPPLEMENTAL DATA:
Net assets, end of period (in
  thousands)..............................  $298,319   $284,214   $259,514   $215,688   $162,556
Ratio of expenses to average
  net assets..............................     0.99%      1.05%      1.07%      1.09%      1.13%
Ratio of net income to average net
  assets..................................   (0.24)%    (0.29)%    (0.25)%    (0.11)%    (0.39)%
Portfolio turnover rate...................   132.18%    104.33%     94.97%    103.60%     70.72%
</TABLE>
 
- ---------------
  * Per share amounts are calculated based on average shares outstanding.
 
                                       15

<PAGE>
 
CLASS B
 
<TABLE>
<CAPTION>
                                                YEAR ENDED
                                               DECEMBER 31,        4/22/96**
                                           --------------------       TO
                                             1998        1997      12/31/96
                                             ----        ----      ---------
<S>                                        <C>         <C>         <C>          
PER SHARE DATA:*
Net asset value, beginning of period.....    $16.24      $15.47      $16.43
                                             ------      ------      ------
Income from investment operations:
  Net investment income..................     (0.17)      (0.18)      (0.10)
  Net gains or losses on securities (both
    realized and unrealized).............      3.05        3.38        1.01
                                             ------      ------      ------
Total from investment operations.........      2.88        3.20        0.91
                                             ------      ------      ------
Less distributions:
  Distributions (from capital gains).....     (0.68)      (2.43)      (1.87)
                                             ------      ------      ------
Total distributions......................     (0.68)      (2.43)      (1.87)
                                             ------      ------      ------
Net asset value, end of period...........    $18.44      $16.24      $15.47
                                             ======      ======      ======
Total return.............................    18.24%      21.26%        5.33%
RATIOS/SUPPLEMENTAL DATA:
Net assets, end of period (in
  thousands).............................   $14,824      $8,437       $4,337
Ratio of expenses to average net
  assets.................................     1.75%       1.81%       1.89%+
Ratio of net income to average net
  assets.................................   (1.00)%     (1.05)%       (.99)%+
Portfolio turnover rate..................   132.18%     104.33%       94.97%++
</TABLE>
 
CLASS D
 
<TABLE>
<CAPTION>
                                                           YEAR ENDED DECEMBER 31,
                                           --------------------------------------------------------
                                             1998        1997        1996        1995        1994
                                             ----        ----        ----        ----        ----
<S>                                        <C>         <C>         <C>         <C>         <C>
PER SHARE DATA:*
Net asset value, beginning of period.....    $16.25      $15.47      $14.94      $12.82      $15.86
                                             ------      ------      ------      ------      ------
Income from investment operations:
  Net investment income..................     (0.17)      (0.18)      (0.16)      (0.14)      (0.33)
  Net gains or losses on securities (both
    realized and unrealized).............      3.05        3.39        2.56        4.56       (1.11)
                                             ------      ------      ------      ------      ------
Total from investment operations.........      2.88        3.21        2.40        4.42       (1.44)
                                             ------      ------      ------      ------      ------
Less distributions:
  Distributions (from capital gains).....     (0.68)      (2.43)      (1.87)      (2.30)      (1.60)
                                             ------      ------      ------      ------      ------
Total distributions......................     (0.68)      (2.43)      (1.87)      (2.30)      (1.60)
                                             ------      ------      ------      ------      ------
Net asset value, end of period...........    $18.45      $16.25      $15.47      $14.94      $12.82
                                             ======      ======      ======      ======      ======
Total return.............................    18.23%      21.34%      15.84%      35.98%     (8.75)%
RATIOS/SUPPLEMENTAL DATA:
Net assets, end of period (in
  thousands).............................   $27,433     $26,088     $19,974      $9,137      $3,179
Ratio of expenses to average
  net assets.............................     1.75%       1.81%       1.83%       2.02%       2.66%
Ratio of net income to average net
  assets.................................   (1.00)%     (1.05)%     (1.00)%     (1.06)%     (2.28)%
Portfolio turnover rate..................   132.18%     104.33%      94.97%     103.60%      70.72%
</TABLE>
 
- ---------------
 * Per share amounts are calculated based on average shares outstanding.
** Commencement of offering of shares.
 + Annualized.
++ For the year ended December 31, 1996.
 
                                       16

<PAGE>
 
How to Contact Us
 
<TABLE>
<S>                           <C>           <C>
 
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
</TABLE>
 
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.
 
                                       17

<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 Fund. 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 the Fund's 
investments. In the Fund's annual report, you will find a discussion of the 
market conditions and investment strategies that significantly affected the 
Fund's performance during its last fiscal year.

                            SELIGMAN ADVISORS, INC.
                                        
                                an affiliate of
                                        
                         [J. & W. SELIGMAN & CO. LOGO]
                                        
                             J. & W. SELIGMAN & CO.
                                  INCORPORATED
                                        
                                ESTABLISHED 1864
                                        
                      100 Park Avenue, New York, NY 10017

Information about the Fund, 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 Fund 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: 811-1886


<PAGE>


                           SELIGMAN CAPITAL FUND, INC.


                       Statement of Additional Information
                                   May 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 the Seligman  Capital Fund,
Inc.,  dated May 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 Fund at the above address or telephone numbers.

The financial statements and notes included in the Fund's 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 Fund and its Investments and Risks......  2
     Management of the Fund.....................................  5
     Control Persons and Principal Holders of Securities........  10
     Investment Advisory and Other Services.....................  10
     Brokerage Allocation and Other Practices...................  16
     Capital Stock and Other Securities ........................  17
     Purchase, Redemption, and Pricing of Shares................  17
     Taxation of the Fund.......................................  22
     Underwriters...............................................  23
     Calculation of Performance Data ...........................  25
     Financial Statements.......................................  27
     General Information........................................  27
     Appendix ..................................................  28


<PAGE>



                                  Fund History

The Fund was incorporated under the laws of the state of Maryland in 1968.


              Description of the Fund and Its Investments and Risks

Classification

The Fund is a diversified  open-end  management  investment  company,  or mutual
fund.

Investment Strategies and Risks

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

Foreign Securities.  The Fund may invest in commercial paper and certificates of
deposit  issued by foreign  banks and may invest in other  securities of foreign
issuers either directly or through American Depositary Receipts (ADRs), European
Depositary Receipts (EDRs), or Global Depositary  Receipts (GDRs)  (collectively
"Depositary  Receipts").  Foreign  investments  may  be  affected  favorably  or
unfavorably by changes in currency rates and exchange control regulation.  There
may be less  information  available  about a  foreign  company  than  about a US
company and foreign  companies  may not be subject to  reporting  standards  and
requirements comparable to those applicable to US companies.  Foreign securities
may not be as  liquid  as US  securities  and  there  may be  delays  and  risks
attendant in local settlement  procedures.  Securities of foreign  companies may
involve  greater  market  risk than  securities  of US  companies,  and  foreign
brokerage commissions and custody fees are generally higher than those in United
States.  Investments in foreign securities may also be subject to local economic
or political  risks,  political  instability,  the possible  nationalization  of
issuers and the risk of  expropriation  or restrictions  on the  repatriation of
proceeds of sale. In addition, foreign investments may be subject to withholding
and  other  taxes.  ADRs,  which  are  traded  in  dollars  on US  Exchanges  or
over-the-counter,  are  issued by  domestic  banks  and  evidence  ownership  of
securities issued by foreign corporations.  EDRs are typically traded in Europe.
GDRs are  typically  traded in both  Europe  and the United  States.  Depositary
Receipts may be issued under  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 issuers may not be
directly  involved  in  the  creation  of  the  program.   Although   regulatory
requirements  with  respect to  sponsored  and  unsponsored  Depositary  Receipt
programs  are  generally  similar,  the  issuers of  securities  represented  by
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  receipts.  The Fund may invest
up to 10% of its total assets in foreign securities that it holds directly,  but
this 10% limit  does not apply to foreign  securities  held  through  Depositary
Receipts or to commercial  paper and  certificates  of deposit issued by foreign
banks.

Repurchase  Agreements.  The 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 the Fund acquires a security,
generally a US Government obligation,  subject to resale at an agreed upon price
and date.  The resale price  reflects an agreed upon interest rate effective for
the period of time the Fund holds the  security and is unrelated to the interest
rate on the  security.  The Fund's  repurchase  agreements  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 the securities  underlying the agreement,  a decline in value of the
underlying  securities  and  a  loss  of  interest.  Repurchase  agreements  are
typically  entered into for periods of one week or less. The 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.



                                       2
<PAGE>



Illiquid Securities. The 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.  The Fund may
purchase  restricted  securities  that can be  offered  and  sold to  "qualified
institutional  buyers"  under Rule 144A of the 1933 Act, and the Fund's 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 the Fund, if and
to the extent that qualified institutional buyers become for a time uninterested
in purchasing Rule 144A securities.

Borrowing. The Fund may from time to time borrow money to increase its portfolio
of  securities.  It may  borrow  only from banks and may not borrow in excess of
one-third of the market value of its assets,  less  liabilities  other than such
borrowing. The Fund may pledge its assets only to the extent necessary to effect
permitted  borrowings of up to 15% of its total assets on a secured basis. These
limits may be changed only by a vote of the  shareholders.  Current  asset value
coverage of three times any amount borrowed is required at all times.

Borrowed money creates an opportunity for greater capital  appreciation,  but at
the same time  increases  exposure  to capital  risk.  The net cost of any money
borrowed  would be an expense that  otherwise  would not be  incurred,  and this
expense will limit the Fund's net investment income in any given period.

Any gain in the value of securities  purchased  with money borrowed in excess of
the cost of  amounts  borrowed  would  cause the net asset  value of the  Fund's
shares to  increase  more than  otherwise  would be the  case.  Conversely,  any
decline in the value of securities  purchased with money borrowed or any gain in
value  less than the cost of amounts  borrowed  would  cause net asset  value to
decline more than would otherwise be the case.

Rights and  Warrants.  The 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 the Fund's investment restrictions regarding such securities.

The 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 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.

Lending of  Portfolio  Securities.  The Fund may lend  portfolio  securities  to
broker/dealers or other  institutions,  if the investment  manager believes such
loans will be beneficial  to the 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 the 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 that were  considered  important with respect to the
investment. The Fund may loose money if a borrower defaults on its obligation to
return  securities  and  the  value  of  the  collateral  held  by the  Fund  is



                                       3
<PAGE>



insufficient  to  replace  the  loaned  securities.  In  addition,  the  Fund in
responsible for any loss that might result from its investment of the borrower's
collateral.

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

Fund Policies

The 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, the
Fund may not:

- -    Borrow money,  except in an amount not to exceed  one-third of the value of
     its total assets less liabilities other than borrowings;

- -    Mortgage or pledge any of its  assets,  except to the extent  necessary  to
     effect  permitted  borrowings  of up to 15% its  total  assets on a secured
     basis and except to enter into escrow  arrangements  in connection with the
     sales of  permitted  call  options.  The Fund has no present  intention  of
     selling call options,  and will not do so without the prior approval of the
     Fund's Board of Directors;

- -    Purchase securities on "margin," or sell "short";

- -    Invest more than 5% of the value of its total assets,  at market value,  in
     securities  of any company  which,  with their  predecessors,  have been in
     operation  less  than  three  continuous  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
     calculation;

- -    Invest more than 5% of its total assets  (taken at market) in securities of
     any  one  issuer,  other  than  the  U.S.   Government,   its  agencies  or
     instrumentalities,  buy more than 10% of the outstanding  voting securities
     or more than 10% of all the securities of any issuer,  or invest to control
     or manage any company;

- -    Invest more than 25% of total assets at market value in any one industry;

- -    Invest  in  securities  issued  by other  investment  companies,  except in
     connection with a merger,  consolidation,  acquisition or reorganization or
     for the  purpose  of  hedging  the Fund's  obligations  under the  Deferred
     Compensation Plan for Directors;

- -    Purchase or hold any real estate,  except the Fund may invest in securities
     secured by real  estate or  interests  therein or issued by persons  (other
     than real estate investment  trusts) which deal in real estate or interests
     therein;

- -    Purchase  or  hold  the  securities  of any  issuer,  if to its  knowledge,
     directors or officers of the Fund  individually  owning  beneficially  more
     than 0.5% of the  securities of that issuer own in the aggregate  more than
     5% of such securities;

- -    Deal with its directors or officers,  or firms they are associated with, in
     the purchase or sale of securities of other issuers, except as broker;

- -    Purchase or sell commodities and commodity contracts;

- -    Underwrite the securities of other issuers,  except insofar as the Fund may
     be deemed an underwriter  under the Securities Act of 1933, as amended,  in
     disposing of a portfolio security;



                                       4
<PAGE>



- -    Make loans,  except loans of portfolio  securities and except to the extent
     the purchase of notes, bonds or other evidences of indebtedness,  the entry
     into repurchase  agreements or deposits with banks may be considered loans;
     or

- -    Write or purchase put,  call,  straddle or spread  options  except that the
     Fund may sell covered call options listed on a national securities exchange
     or quoted on NASDAQ and purchase  closing call options so listed or quoted.
     The  Fund  has no  present  intention  of  entering  into  these  types  of
     transactions,  and will not do so without the prior  approval of the Fund's
     Board of Directors.

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

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

When the investment  manager believes that market conditions warrant a temporary
defensive  position,  the Fund may invest up to 100% of its assets in short-term
instruments,  including,  but not  limited  to,  prime  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.  The 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.
Investments in bank obligations will be limited at the time of investment to the
obligations  of the 100  largest  domestic  banks in terms of  assets  which are
subject to regulatory supervision by the US Government or state governments, and
the  obligations  of the 100  largest  foreign  banks in terms  of  assets  with
branches or agencies in the United States.

Portfolio Turnover

The Fund's  portfolio  turnover  rate is  calculated  by dividing  the lesser of
purchases or sales of portfolio  securities for the year by the monthly  average
of the value of the portfolio securities owned during the year. Securities whose
maturity or expiration date at the time of acquisition were one year or less are
excluded from the calculation. The Fund's portfolio turnover rates for the years
ended December 31, 1998 and 1997 were _____% and 104.33%, respectively.

                             Management of the Fund

Board of Directors

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

Management Information

Directors  and  officers  of the Fund,  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 Fund, as defined in the 1940 Act,
is indicated by an asterisk. Unless otherwise indicated, their addresses are 100
Park Avenue, New York, NY 10017.



                                       5
<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.     
             (60)                Board, Chief Executive          Incorporated,  Chairman  and  Chief     
                                 Officer and Chairman of the     Executive  Officer,   the  Seligman     
                                 Executive Committee             Group  of   investment   companies;     
                                                                 Chairman,  Seligman 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.        
             (46)                Member of the Executive         Seligman   &   Co.    Incorporated;        
                                 Committee                       President  (with the  exception  of        
                                                                 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,   
             (58)                Executive Committee             Director  of  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    
             (69)                                                Diplomacy   at  Tufts   University;    
       Tufts University                                          Director or Trustee,  the  Seligman    
        Packard Avenue,                                          Group  of   investment   companies;    
       Medford, MA 02155                                         Chairman,   American   Council   on    
                                                                 Germany;  a Governor  of the 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>



                                                              6
<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      
             (63)                                                College;  Director or Trustee,  the      
      18 Highland Circle                                         Seligman    Group   of   investment      
     Bronxville, NY 10708                                        companies;  Director, the Committee      
                                                                 for   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                 
              (65)                                               Executive   Officer  of  Kerr-McGee                 
   2601 Northwest Expressway,                                    Corporation;  Director  or Trustee,                 
           Suite 805E                                            the  Seligman  Group of  investment                 
    Oklahoma City, OK 73112                                      companies; Director, 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       
             (69)                                                Partner,  Sullivan & Cromwell,  law       
       125 Broad Street,                                         firm;  Director  or  Trustee,   the       
      New York, NY 10004                                         Seligman    Group   of   investment       
                                                                 companies;  Director,  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     
             (56)                                                Seligman    Group   of   investment     
         P.O. Box 449                                            companies;  Trustee,  The Geraldine     
      Gladstone, NJ 07934                                        R.  Dodge  Foundation,   charitable     
                                                                 foundation;  and  Chairman  of  the     
                                                                 Board of Trustees  of St.  George's     
                                                                 School  (Newport,   RI).  Formerly,     
                                                                 Director,  the National Association     
                                                                 of Independent Schools (Washington,     
                                                                 DC).                                    
</TABLE>



                                                              7
<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,            
             (72)                                                 Kipp & Szuch, law firm; Director or            
 Park Avenue at Morris County,                                    Trustee,   the  Seligman  Group  of            
 P.O. Box 1945, Morristown, NJ                                    investment   companies.   Formerly,            
             07962                                                Director, Public Service Enterprise            
                                                                  Group, public utility.                         
                                                                                                                 

       James Q. Riordan                     Director              Director or Trustee,  the  Seligman           
             (71)                                                 Group  of   investment   companies;           
       675 Third Avenue,                                          Director,  The Houston  Exploration           
          Suite 3004                                              Company;   The   Brooklyn   Museum,           
      New York, NY 10017                                          KeySpan  Energy  Corporation;   and           
                                                                  Public  Broadcasting  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             
             (66)                                                 Inc.;  Director  or  Trustee,   the             
     96 Evergreen Avenue,                                         Seligman    Group   of   investment             
         Rye, NY 10580                                            companies.    Formerly,   Director,             
                                                                  USLIFE Corporation.                             

       James N. Whitson                     Director              Director  and  Consultant,  Sammons
             (63)                                                 Enterprises,   Inc.;   Director  or
    6606 Forestshire Drive                                        Trustee,   the  Seligman  Group  of
       Dallas, TX 75230                                           investment  companies;  C-SPAN; and
                                                                  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.                         

      Marion S. Schultheis        Vice President and Portfolio    Managing Director, J. & W. Seligman 
              (45)                          Manager               &  Co.   Incorporated,   investment 
                                                                  managers   and    advisers;    Vice 
                                                                  President  and  Portfolio  Manager, 
                                                                  two   other   open-end   investment 
                                                                  companies in the Seligman Group.    

       Lawrence P. Vogel                 Vice President           Senior Vice President,  Finance, J.    
             (42)                                                 & W.  Seligman & 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.                 
</TABLE>



                                                              8
<PAGE>



<TABLE>
<CAPTION>
             Name,                                                            Principal
           (Age) and                   Positions(s) Held                 Occupation(s) During
            Address                        with Fund                         Past 5 Years
            -------                        ---------                         ------------
<S>                              <C>                             <C>
        Frank J. Nasta                     Secretary              General   Counsel,    Senior   Vice  
             (34)                                                 President,  Law and  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  
              (41)                                                investment  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 Fund for
which no market valuation is available,  and to elect or appoint officers of the
Fund to serve until the next meeting of the Board.

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

Compensation

<TABLE>
<CAPTION>
                                                                          Pension or             Total Compensation
                                                       Aggregate       Retirement Benefits          from Fund and
            Name and                                 Compensation      Accrued as Part of         Fund Complex Paid
       Position with Fund                            from Fund (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                                  $                  N/A                     $79,000
Alice S. Ilchman, Director                                                   N/A                      73,000
Frank A. McPherson, Director                                                 N/A                      79,000
John E. Merow, Director                                                      N/A                      77,000
Betsy S. Michel, Director                                                    N/A                      79,000
James C. Pitney, Director                                                    N/A                      75,000
James Q. Riordan, Director                                                   N/A                      75,000
Robert L. Shafer, Director                                                   N/A                      75,000
James N. Whitson, Director                               (d)                 N/A                      79,000(d)
</TABLE>

(1)  For the Fund's year ended  December 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.

The Fund has a compensation  arrangement under which outside directors may elect
to defer receiving their fees. The Fund 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 Fund's financial  statements.  The total amount of deferred  compensation
(including  earnings)  payable  in  respect  of the  Fund to Mr.  Whitson  as of
December 31, 1998 was $_____.  Messrs.  



                                       9
<PAGE>



Merow and  Pitney no  longer  defer  current  compensation;  however,  they have
accrued deferred compensation in the amounts of $_____ and $_____, respectively,
as of December 31, 1998.

The Fund  may,  but is not  obligated  to,  purchase  shares of  Seligman  Group
investment  companies to hedge its  obligations  in  connection  with the Fund's
Deferred Compensation Plan.

Sales Charges

Class A shares of the Fund may be issued  without a sales  charge to present and
retired directors,  trustees,  officers, employees (and their family members) of
the Fund,  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 the 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.

               Control Persons and Principal Holders of Securities

Control Persons

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

Principal Holders

As of  January  31,  1999,  10.28%  of the  Fund's  Class A capital  stock  then
outstanding  were registered in the name of State of Wisconsin  Public Emp. Def.
Comp.  Plan, c/o National Defined  Compensation,  P.O. Box 20629,  Columbus,  OH
43220-0629,  and 33.65% of the Fund's Class B capital stock then outstanding and
13.28% of the  Fund's  Class D capital  stock  then  outstanding,  were owned of
record  by  Merrill  Lynch  Pierce  Fenner & Smith for the Sole  Benefit  of Its
Customers,  Attn.  Fund  Administrator,  4800 Deer Lake Drive  East,  3rd Floor,
Jacksonville, FL 32246.

Management Ownership

Directors  and  officers  of the Fund as a group  owned  less than  1.68% of the
Fund's  Class A capital  stock as of January 31, 1999.  As of the same date,  no
Directors  or  officers  owned  shares of the Fund's  Class B or Class D capital
stock.

                     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  for further  history of
Seligman.

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.



                                       10
<PAGE>



As  compensation  for the services  performed and the  facilities  and personnel
provided by the  investment  manager,  the Fund pays to the  investment  manager
promptly  after the end of each month a fee,  calculated on each day during such
month, equal to the Applicable Percentage of the daily net assets of the Fund at
the  close of  business  on the  previous  business  day.  The term  "Applicable
Percentage"  means the amount  (expressed  as a  percentage  and  rounded to the
nearest one millionth of one percent) obtained by dividing (i) the Fee Amount by
(ii) the Fee Base. The term "Fee Amount" means the sum on an annual basis of:

              .55 of 1% of the first $4 billion of Fee Base,
              .50 of 1% of the next $2 billion of Fee Base,  
              .475 of 1% of the next $2 billion of Fee Base, and
              .45 of 1% of Fee Base in excess of $8 billion.

The term "Fee  Base" as of any day means the sum of the net  assets at the close
of business on the previous day of each of the investment  companies  registered
under the 1940 Act for which the investment  manager or any  affiliated  company
acts as investment  adviser or manager  (including the Fund). For the year ended
December 31, 1998, the Fund paid Seligman $ , equal to % of its net assets.  For
the year ended  December 31, 1997, the Fund paid Seligman  $1,470,669,  equal to
 .48% of its net assets,  and for the year ended December 31, 1996, the Fund paid
Seligman $1,253,672 equal to .49% of its net assets.

The Fund  pays  all of its  expenses  other  than  those  assumed  by  Seligman,
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 Fund
and  its  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 Fund not employed by or serving as a Director of the Manager or
its affiliates, insurance premiums and extraordinary expenses such as litigation
expenses.

The Management  Agreement  provides that Seligman will not be liable to the Fund
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 Agreement.

The Management  Agreement was initially  approved by the Board of Directors at a
Meeting held on September 30, 1988 and by the  shareholders at a special meeting
held on December 16, 1988.  Amendments to the  Management  Agreement,  effective
April 10,  1991,  to increase  the fee rate  payable to the Manager by the Fund,
were  approved  by the  Board  of  Directors  on  January  17,  1991  and by the
shareholders  at a  special  meeting  held on April  10,  1991.  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 the 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  shall not have notified the Fund 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 the Fund or by  Seligman,  without  penalty,  on 60 days'
written notice to Seligman and will terminate  automatically in the event of its
assignment.  The Fund 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



                                       11
<PAGE>



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.

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
the 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 Fund.  Those  individuals  identified  above
under  "Management  Information"  as  directors or officers of both the Fund and
Seligman Advisors are affiliated persons of both entities.

Services Provided by the Investment Manager

Under the  Management  Agreement,  dated December 29, 1988, as amended April 10,
1991,  subject to the control of the Board of  Directors,  Seligman  manages the
investment of the assets of the Fund,  including  making  purchases and sales of
portfolio  securities  consistent  with the  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,
regularly advise the Fund with respect to its investments.



                                       12
<PAGE>



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:

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

(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.

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 years ended  December 31,
1998, 1997, and 1996,  Seligman Services received  commissions in the amounts of
$______ , $7,630, and $15,257, respectively.

Rule 12b-1 Plan

The 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 the 12b-1 Plan, the 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 the Fund.  Payments made by the Fund under the 12b-1 Plan
are intended to be used to encourage sales of the Fund, as well as to discourage
redemptions.

Fees paid by the Fund under the 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 the
Fund will be  allocated  between the classes in  accordance  with a  methodology
approved by the Fund's Board of Directors.  Expenses of distribution  activities
that benefit both the Fund and other Seligman funds will be allocated  among the
applicable  funds  based on  relative  gross  sales over the prior  quarter,  in
accordance with a methodology approved by the Board.



                                       13
<PAGE>



Class A 

Under the 12b-1 Plan, the 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  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 of the Fund.  The Fund is not  obligated to pay Seligman  Advisors for
any such  costs it  incurs  in excess of the fee  described  above.  No  expense
incurred in one year by Seligman  Advisors with respect to Class A shares of the
Fund may be paid from  Class A 12b-1  fees  received  from the Fund in any other
year. If the 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 the Fund
to Seligman  Advisors  with respect to Class A shares.  The total amount paid by
the Fund to  Seligman  Advisors  in respect of Class A shares for the year ended
December  31,  1998 was  $_____,  equivalent  to  _____%  of the Class A shares'
average daily net assets.

Class B

Under the 12b-1 Plan, the 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 the Fund may exceed the 12b-1 fees paid by
the Fund in that  year.  The Fund's  12b-1 Plan  permits  expenses  incurred  in
respect  of  Class B  shares  in one  year to be paid  from  Class B 12b-1  fees
received from the Fund in any other year;  however,  in any year the Fund is 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 the 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 the Fund in  respect of Class B shares for the year ended
December  31,  1998 was $_____ ,  equivalent  to _____% per annum of the average
daily net assets of Class B shares.

Class D

Under the 12b-1 Plan, the 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 the Class D shares.  The 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
share 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



                                       14
<PAGE>



Seligman  Advisors for its  prepayment to Service  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 the Fund.  The total  amount paid by the Fund in
respect  of Class D shares  for the year ended  December  31,  1998 was $_____ ,
equivalent  to _____%  per  annum of the  average  daily  net  assets of Class D
shares.

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

As of  December  31,  1998  Seligman  Advisors  has  incurred $ of  unreimbursed
expenses in respect of the Fund's  Class D shares.  This amount is equal to % of
the net assets of Class D shares at December 31, 1998.

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

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

                                  Class A       Class B      Class D
                                  -------       -------      -------

Compensation to underwriters                    $              $

Compensation to broker/dealers    $             $              $

Other*                                          $

*    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 was  approved  on July 16,  1992 by the  Directors,  including  a
majority of the  Directors who are not  "interested  persons" (as defined in the
1940 Act) of the Fund and who have no direct or indirect  financial  interest in
the  operation  of the Plan or in any  agreement  related to the 12b-1 Plan (the
"Qualified Directors") and was approved by shareholders of the Fund at a Special
Meeting of the  Shareholders  held on November 23,  1992.  The 12b-1 Plan became
effective  in respect  of the Class A shares on January 1, 1993.  The 12b-1 Plan
was  approved in respect of the Class B shares on March 21, 1996 by the Board of
Directors  of the Fund,  including a majority of the  Qualified  Directors,  and
became  effective in respect of the Class B shares on April 22, 1996.  The 12b-1
Plan was  approved  in  respect  of the Class D shares on March 18,  1993 by the
Directors, including a majority of the Qualified Directors, and became effective
in respect of the Class D shares on May 1, 1993. The 12b-1 Plan will continue in
effect until  December 31 of each year so long as such  continuance  is approved
annually by a majority  vote of both the Directors of the Fund and the Qualified
Directors,  cast in person at a meeting called for the purpose of voting on such
approval.  The 12b-1 Plan 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 the class.  If the amount
payable  in respect of Class A shares  under the 12b-1  Plan is  proposed  to be
increased materially,  the Fund will either (1) permit holders of Class B shares
to vote as a separate  class on the  proposed  increase  or (2)  establish a new
class of shares  subject to the same  payment  under the 12b-1 Plan as  existing
Class A shares,  in which case the Class B shares will



                                       15
<PAGE>



thereafter  convert  into the new  class  instead  of into  Class A  shares.  No
material amendment to the 12b-1 Plan may be made except by vote of a majority of
both the Directors and the Qualified Directors.

The 12b-1 Plan  requires  that the  Treasurer  of the Fund 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 Plan. Rule 12b-1
also  requires  that the  selection  and  nomination  of  Directors  who are not
"interested persons" of the Fund be made by such disinterested Directors.
The 12b-1 Plan is reviewed by the Directors annually.

Seligman  Services acts as a broker/dealer  of record for  shareholder  accounts
that do not have a designated  financial advisor and receives  compensation from
the Fund pursuant to the 12b-1 Plan for providing  personal services and account
maintenance  to such  accounts and other  distribution  services.  For the years
ended December 31, 1998, 1997, and 1996, Seligman Services received distribution
and service fees from the Fund pursuant to its 12b-1 Plan of $_____, $90,061 and
$75,816, respectively.

                    Brokerage Allocation and Other Practices

Brokerage Transactions

Seligman  will seek the most  favorable  price and execution in the purchase and
sale of portfolio  securities  of the Fund.  When two or more of the  investment
companies in the Seligman Group or other investment advisory clients of Seligman
desire  to buy or sell  the  same  security  at the same  time,  the  securities
purchased or sold are allocated by Seligman 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 Fund deals with  responsible  primary market
makers unless a more favorable  execution or price is believed to be obtainable.
The 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 years ended  December  31,  1998,  1997,  and 1996,  the Fund paid total
brokerage commissions to others for execution, research and statistical services
in the amounts of $_____ , $583,515 and $333,393, respectively.

Commissions

For the years ended December 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, 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  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 Fund. 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
Fund.



                                       16
<PAGE>



Directed Brokerage

During the year ended  December 31, 1998 neither the Fund nor Seligman  directed
any of the  Fund's  brokerage  transactions  to a  broker  because  of  research
services provided.

Regular Broker-Dealers

During the year ended December 31, 1998, the Fund did not acquire  securities 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

The Fund is authorized to issue 500,000,000  shares of common stock, each with a
par value of $1.00, divided into three classes, designated Class A, Class B, and
Class D shares.  Each  share of the  Fund's  Class A, Class B and Class D common
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. The Fund
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

The Fund 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:

Volume  Discounts  are provided if the total  amount  being  invested in Class A
shares of the 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 the 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



                                       17
<PAGE>



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  Fund's
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 the 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.

     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



                                       18
<PAGE>



connection  with a payroll  deduction  system of plan  funding or other  systems
acceptable  to  Seligman  Data  Corp.,  the Fund's  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 the 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%

Approximately   eight  years  after  purchase,   Class  B  shares  will  convert
automatically into Class A shares, which are subject to an annual service fee of
 .25% but no distribution fee. Shares purchased through reinvestment of dividends
and  distributions on Class B shares also will convert  automatically to Class A
shares along with the  underlying  shares on which they were earned.  Conversion
occurs at the end of the month  which  precedes  the eighth  anniversary  of the
purchase date. If Class B shares of the Fund are exchanged for Class B shares of
another  Seligman Mutual Fund, the conversion  period  applicable to the Class B
shares acquired in the exchange will apply, and the holding period of the shares
exchanged will be tacked onto the holding period of the shares acquired. Class B
shareholders of the Fund  exercising the exchange  privilege will continue to be
subject to the Fund's CDSC  schedule  if such  schedule is higher or longer than
the CDSC  schedule  relating  to the new Class B shares.  In  addition,  Class B
shares of the Fund  acquired  by  exchange  will be subject  to the Fund's  CDSC
schedule if such schedule is higher or



                                       19
<PAGE>



longer  than the CDSC  schedule  relating to the Class B shares of the fund from
which the exchange has been made.

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.

Systematic Withdrawals. Class B and Class D shareholders who reinvest both their
dividends and capital gain  distributions to purchase  additional  shares of the
Fund, may use the Fund's  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 Fund;

(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 Fund 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 Fund  does not
presently intend to accept securities in payment for Fund shares. Generally, the
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 the
Fund would not accept securities with a value of less than $100,000 per issue in
payment  for  shares.  The 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



                                       20
<PAGE>



Fund  shares at any time  without  notice.  The Fund will not accept  restricted
securities in payment for shares. The Fund will value accepted securities in the
manner provided for valuing portfolio securities of the Fund.

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 the Fund if
the Fund is combined with another  Seligman mutual fund, or in connection with a
similar reorganization transaction.

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 the 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. The 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  are  valued  at the last  sale  price  on the  securities
exchange or  securities  market on which such  securities  primarily are traded.
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.  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 no recent  sales  transactions  are valued based on  quotations  provided by
primary  market makers in such  securities.  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.  Expenses
and fees,  including the investment  management fee, are accrued daily and taken
into account for the purpose of determining the net asset value of Fund shares.

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 the NYSE.  The values of such
securities  used in computing  the net asset value of the shares of the Fund are
determined as of such times.  Foreign currency exchange rates are also generally
determined prior to the close of the NYSE.

For  purposes  of  determining  the net asset  value per share of the 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



                                       21
<PAGE>



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.

Specimen Price Make-Up

Under  the  current  distribution  arrangements  between  the Fund 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
December  31,  1998,  the  maximum  offering  price of the  Fund's  shares is as
follows:

Class A
     Net asset value per share...................................       $

     Maximum sales charge (4.75% of offering price)..............       $

     Offering price to public....................................       $
                                                                        ===



                                       22
<PAGE>



Class B
     Net asset value and offering price per share(1) ............      $

Class D
     Net asset value and offering price per share(1) ............      $

- --------------
(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 Fund

The Fund is  qualified  and  intends  to  continue  to  qualify  as a  regulated
investment  company under  Subchapter M of the Internal  Revenue Code.  For each
year so qualified,  the Fund will not be subject to federal  income taxes on its
net investment  income and capital gains,  if any,  realized  during any taxable
year,  which it distributes to its  shareholders,  provided that at least 90% of
its net investment  income and net short-term  capital gains are  distributed to
shareholders each year.

Dividends  from net  investment  income and  distributions  from net  short-term
capital gains are taxable as ordinary income to  shareholders,  whether received
in cash or reinvested in additional  shares. To the extent designated as derived
from the  Fund's  dividend  income  that  would be  eligible  for the  dividends
received deduction if the Fund were not a regulated investment company, they are
eligible,  subject  to  certain  restrictions,  for the 70%  dividends  received
deduction for corporations.

Distributions  of net capital gains (i.e.,  the excess of net long-term  capital
gains over any net  short-term  losses) are taxable as long-term  capital  gain,
whether  received in cash or invested in  additional  shares,  regardless of how
long the shares  have been held by a  shareholder.  Such  distributions  are not
eligible for the dividends received deduction allowed to corporate shareholders.
Shareholders receiving  distributions in the form of additional shares issued by
the Fund will be treated for federal  income tax  purposes as having  received a
distribution  in an  amount  equal  to the  fair  market  value  on the  date of
distribution of the shares received.  Individual  shareholders generally will be
subject to federal tax on  distributions  of net capital gains at a maximum rate
of 20% if designated as derived from the Fund's capital gains from property held
for more than one year.

Any gain or loss  realized  upon a sale or redemption of shares in the Fund by a
shareholder  who is not a dealer in  securities  will  generally be treated as a
long-term  capital  gain or loss if the shares  have been held for more than one
year and otherwise as a short-term capital gain or loss. Individual shareholders
will be subject to federal  income tax on net capital gains 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.  However, if
shares on which a long-term  capital  gain  distribution  has been  received are
subsequently  sold or redeemed  and such shares have been held for six months or
less, any loss realized will be treated as long-term  capital loss to the extent
that it offsets the long-term capital gain  distribution.  In addition,  no loss
will be  allowed  on the sale or other  disposition  of  shares  of the Fund if,
within a period  beginning  30 days before the date of such sale or  disposition
and  ending 30 days  after such date,  the  holder  acquires  (including  shares
acquired  through  dividend  reinvestment)  securities  that  are  substantially
identical to the shares of the Fund.



                                       23
<PAGE>



In  determining  gain or loss on shares  of the Fund that are sold or  exchanged
within 90 days after acquisition,  a shareholder generally will not be permitted
to  include  in the tax basis  attributable  to such  shares  the  sales  charge
incurred in acquiring such shares to the extent of any  subsequent  reduction of
the sales charge by reason of the Exchange or Reinstatement Privilege offered by
the Fund. Any sales charge not taken into account in  determining  the tax basis
of shares sold or exchanged  within 90 days after  acquisition  will be added to
the  shareholder's  tax basis in the shares acquired pursuant to the Exchange or
Reinstatement Privilege.

The Fund will  generally  be subject to an excise tax of 4% on the amount of any
income  or  capital  gains,  above  certain  permitted  levels,  distributed  to
shareholder  on a  basis  such  that  such  income  or gain  is not  taxable  to
shareholders  in the  calendar  year  in  which  it  was  earned  by  the  Fund.
Furthermore,  dividends  declared in October,  November or December,  payable to
shareholders  of  record  on a  specified  date in such a month  and paid in the
following  January  will be treated as having been paid by the Fund and received
by each shareholder in December. Under this rule, therefore, shareholders may be
taxed in one year on dividends or distributions  actually received in January of
the following year.

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,  the fund is 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, the 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 Fund also reserves the right to
close  any  account  which  does not have a  certified  taxpayer  identification
number.

                                  Underwriters

Distribution of Securities

The Fund 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 Fund.  Seligman  Advisors  accepts orders for the
purchase of Fund shares, which are offered continuously.  As general distributor
of the Fund's common 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 CDSCs paid by
investors.

Total sales charges paid by  shareholders  of Class A shares of the Fund for the
years ended December 31, 1998, 1997 and 1996,  amounted to $_____,  $194,349,and
$327,624, respectively, of which $_____, $22,246, and $37,555, respectively, was
retained by Seligman Advisors.

Compensation

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



                                       24
<PAGE>



Net Underwriting    Compensation on
  Discounts and     Redemptions and
   Commissions        Repurchases
 (Class A Sales   (CDSC on Class A and     Brokerage           Other
Charge Retained)   Class D Retained)      Commissions       Compensation (1)
- ----------------   ----------------       -----------       ------------

$                  $                      $                 $

- ----------
(1)  Seligman  Advisors  has sold its  rights to  collect  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 Plan."
     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 the year ended December 31, 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 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. Seligman Advisors may from time
to time pay a bonus or other  incentive  to  dealers  that  sell  shares  of the
Seligman  mutual  funds.  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

The average annual total returns for the Fund's Class A shares for the one-year,
five-year,  and ten-year periods through December 31, 1998, were 13.48%, 15.62%,
and 17.51%, respectively. These returns were computed by subtracting the maximum
sales  charge of 4.75% of public  offering  price and  assuming  that all of the
dividends and capital gain distributions paid by the Fund over the relevant time
period were reinvested.  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



                                       25
<PAGE>



payment  to  grow to the  amount  which  would  have  been  received  upon  such
redemption  (i.e.,  the average annual  compound rate of return).  Table A below
illustrates the total return (income and capital) on Class A shares of the Fund,
assuming  all  dividend  and  capital  gain   distributions  are  reinvested  in
additional shares. It shows that a $1,000 investment in Class A shares, assuming
payment of the initial  4.75% sales  charge,  made on December 31,  1988,  had a
value of $_____ on December 31, 1998,  resulting in an aggregate total return of
_____%.

The average  annual total returns for the Fund's Class B shares for the one-year
period  ended  December  31,  1998  and for  the  period  from  April  22,  1996
(inception)  through  December 31, 1998,  were 13.24% and 15.68%,  respectively.
These  returns  were  computed  assuming  that all  dividends  and capital  gain
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.  Table B
illustrates the total return (income and capital) on Class B shares of the Fund,
assuming  all  dividends  and  capital  gain  distributions  are  reinvested  in
additional  shares. It shows that a $1,000 investment in Class B shares on April
22, 1996 (commencement of operations of Class B shares) had a value of $_____ on
December 31, 1998, resulting in an aggregate total return of _____%.

The average  annual total returns for the Fund's Class D shares for the one-year
and  five-year  periods  ended  December 31, 1998 and for the period from May 3,
1993  (inception)  through December 31, 1998, were 17.23%,  15.57%,  and 15.20%,
respectively. These returns were computed assuming that all of the dividends and
capital  gain  distributions  paid by the Fund's  Class D 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 for the one year period
the 1% CDSC, if  applicable.  Table C illustrates  the total return  (income and
capital) on Class D shares of the Fund,  assuming all dividends and capital gain
distributions  are  reinvested  in  additional  shares.  It shows  that a $1,000
investment in Class D shares made on May 3, 1993  (commencement of operations of
Class D shares)  had a value of $_____ on December  31,  1998,  resulting  in an
aggregate total return of _____%.

The  results  shown  below  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 the Fund today.

                                TABLE A - CLASS A

               Value of      Value of                 Total Value
  Year         Initial     Capital Gain   Value of        Of            Total
Ended(1)    Investment(2)  Distributions  Dividends  Investment(2)  Return(1)(3)
- --------    -------------  -------------  ---------  -------------  ------------
 12/31/89   $                                  --
 12/31/90                                      --
 12/31/91                                      --
 12/31/92                                      --
 12/31/93                                      --
 12/31/94                                      --
 12/31/95                                      --
 12/31/96                                      --
 12/31/97                                      --
 12/31/98



                                       26
<PAGE>



<TABLE>
<CAPTION>
                                TABLE B - CLASS B

                        Value of         Value of                          Total Value
       Period            Initial        Capital Gain       Value of             Of                Total
      Ended(1)        Investment(2)     Distributions      Dividends       Investment(2)      Return(1)(3)
      --------        -------------     -------------      ---------       -------------      ------------
      <S>                <C>              <C>               <C>             <C>                    <C>   
      12/31/96           $942             $111              $--             $1,053
      12/31/97            949              289               --              1,238
      12/31/98                                                                                         %

<CAPTION>
                                TABLE C - CLASS D

                        Value of         Value of                          Total Value
       Period            Initial        Capital Gain       Value of             Of                Total
      Ended(1)        Investment(2)     Distributions      Dividends       Investment(2)      Return(1)(3)
      --------        -------------     -------------      ---------       -------------      ------------
      <S>                <C>              <C>               <C>             <C>                    <C>   
      12/31/93           $965             $116              $--             $1,081
      12/31/94            780              207               --                987
      12/31/95            909              433               --              1,342
      12/31/96            942              612               --              1,554
      12/31/97            989              897               --              1,886
      12/31/98                                                                                       %
</TABLE>

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

1    For the ten-year  period ended  December 31, 1998 for Class A shares,  from
     commencement  of  operations  of Class B shares on April 22,  1996 and from
     commencement of operations of Class D shares on May 3, 1993.

2    The "Value of Initial Investment" as of the date indicated (1) reflects the
     effect of the maximum  initial  sales charge or CDSC,  if  applicable,  (2)
     assumes that all  dividends  and capital gain  distributions  were taken in
     cash,  and (3)  reflects  changes  in the net  asset  value  of the  shares
     purchased  with  the  hypothetical  initial  investment.  "Total  Value  of
     Investment"  (1) reflects the effect of the CDSC,  if  applicable,  and (2)
     assumes investment of all dividends and capital gain distributions.

3    Total return for each Class of shares of the Fund is calculated by assuming
     a hypothetical  initial investment of $1,000 at the beginning of the period
     specified;  subtracting  the  maximum  sales  charge  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 total returns and average annual total returns of Class A shares quoted from
time to time for periods through December 31, 1992, do not reflect the deduction
of 12b-1 fees,  effective  January 1, 1993. The total returns and average annual
returns of Class A shares quoted from time to time for periods through April 10,
1991, do not reflect the increased  management fee approved by  shareholders  on
April 10, 1991. These fees, if reflected, would reduce the performance quoted.

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. The 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.



                                       27
<PAGE>



The 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 year ended December 31, 1998 contains
a schedule of the  investments  of the Fund as of December 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

Custodian.  Investors  Fiduciary Trust Company,  801 Pennsylvania,  Kansas City,
Missouri  64105 serves as custodian of the Fund.  It also  maintains,  under the
general  supervision of the Manager,  the accounting  records and determines the
net asset value for the Fund.

Auditors.  ____________________,independent  auditors,  have  been  selected  as
auditors of the Fund. Their address is Two World Financial Center,  New York, NY
10281.



                                       28
<PAGE>



                                    Appendix

                 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 $2 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.



                                       29
<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 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  series:  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 Series,  Inc.,  which  currently  offers two
     separate series: Seligman Large-Cap Value Fund and Seligman Small-Cap Value
     Fund.



                                       30
<PAGE>


                                                                File No. 2-33566
                                                                        811-1886

PART C.       OTHER INFORMATION

Item 23. Exhibits.

   
     All Exhibits have been  previously  filed,  except  Exhibits marked with an
asterisk (*) which will be filed by amendment.
    

(a)      Articles of Incorporation of Registrant.  (Incorporated by reference to
         Registrant's Post-Effective Amendment No. 53 filed on April 28, 1997.)

(b)      By-laws of the Corporation.  (Incorporated by reference to Registrant's
         Post-Effective Amendment No. 53 filed on April 28, 1997.)

(c)      Specimen  Certificate  of  Class  D  Capital  Stock.  (Incorporated  by
         reference  to  Registrant's  Post-Effective  Amendment  No. 46 filed on
         April 23, 1993.)

(c)(1)   Specimen  Certificate  of  Class  B  Capital  Stock.  (Incorporated  by
         reference  to Form SE, filed on behalf of the  Registrant  on April 16,
         1996)

(d)      Amended Management  Agreement between Registrant and J. & W. Seligman &
         Co.   Incorporated.   (Incorporated   by  reference   to   Registrant's
         Post-Effective Amendment No. 49 filed on May 1, 1995.)

   
(e)      Copy of Amended Distributing  Agreement between Registrant and Seligman
         Advisors,   Inc.   (formerly,   Seligman  Financial   Services,   Inc.)
         (Incorporated by reference to Registrant's Post-Effective Amendment No.
         53 filed on April 28, 1997.)

(e)(1)   Copy  of  Amended  Sales  Agreement  between  Seligman  Advisors,  Inc.
         (formerly,    Seligman   Financial   Services,   Inc.)   and   Dealers.
         (Incorporated by reference to Registrant's Post-Effective Amendment No.
         52 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 Registrant's Post-Effective Amendment No.
         53 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  Registrant's  Post-Effective  Amendment  No. 53 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  Registrant's  Post-Effective  Amendment No 53 filed on
         April 28, 1997.)
    

(f)      Matched  Accumulation  Plan  of J. & W.  Seligman  & Co.  Incorporated.
         (Incorporated  by reference to Exhibit 7 of Registration  Statement No.
         2-92487,  of  Registrant's  Post-Effective  Amendment  No.  21 filed on
         January 29, 1997.)

(f)(1)   Deferred  Compensation  Plan for  Directors of Seligman  Capital  Fund.
         (Incorporated by reference to Registrant's Post-Effective Amendment No.
         54 filed on April 29, 1998.)

(g)      Copy of Custodian  Agreement between Registrant and Investors Fiduciary
         Trust   Company.    (Incorporated    by   reference   to   Registrant's
         Post-Effective Amendment No. 53 filed on April 28, 1997.)

(h)      Not applicable.

(i)      Opinion  and  Consent  of  Counsel.   (Incorporated   by  reference  to
         Registrant's Post-Effective Amendment No. 53 filed on April 28, 1997.)


<PAGE>

                                                                File No. 2-33566
                                                                        811-1886

PART C. OTHER INFORMATION (continued)

   
(j)      *Consent of Independent Auditors.
    

(k)      Not applicable.

(l)      Purchase  Agreement  (Investment  Letter) for Initial  Capital  between
         Registrant's  Class B shares and J. & W.  Seligman & Co.  Incorporated.
         (Incorporated by reference to Registrant's Post-Effective Amendment No.
         52 filed on April 19, 1996.)

(l)(1)   Purchase  Agreement  (Investment  Letter) for Initial  Capital  between
         Registrant's  Class D shares and J. & W.  Seligman & Co.  Incorporated.
         (Incorporated by reference to Registrant's Post-Effective Amendment No.
         53 filed on April 28, 1997.)

(m)      Form of Administration,  Shareholder  Services and Distribution Plan of
         Registrant.  (Incorporated by reference to Registrant's  Post-Effective
         Amendment No. 52 filed on April 19, 1996.)

(m)(1)   Form of Administration, Shareholder Services and Distribution Agreement
         between Seligman Advisors, Inc. (formerly, Seligman Financial Services,
         Inc.)  and  Dealers.   (Incorporated   by  reference  to   Registrant's
         Post-Effective Amendment No. 52 filed on April 19, 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  Registrant's  Post-Effective  Amendment  No. 50 filed on
         February 15, 1996.)

   
Other Exhibits:  Power  of  Attorney  for  Richard  Schmaltz.  (Incorporated  by
                 reference to Registrant's Post-Effective Amendment No. 54 filed
                 on April 28, 1998.)

                 Powers of Attorney. (Incorporated  by reference to Registrant's
                 Post-Effective Amendment No. 53 filed on April 28, 1997.)
    

Item 24. Persons  Controlled  by or  Under  Common  Control  with  Registrant  -
         Seligman Data Corp.  ("SDC"),  a New York Corporation,  is owned by the
         Registrant   and   certain   associated   investment   companies.   The
         Registrant's investment in SDC is recorded at a cost of $2,199.

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 IV of Registrant's
         Amended and Restated  By-laws filed as Exhibit 24(b)(2) to Registrant's
         Post-Effective Amendment No. 53 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.



<PAGE>

                                                                File No. 2-33566
                                                                        811-1886

PART C. OTHER INFORMATION (continued)

Item 26. Business and Other Connections of Investment  Adviser. J. & W. Seligman
         &  Co.  Incorporated,  a  Delaware  corporation,  ("Manager"),  is  the
         Registrant's  investment manager. The Manager also serves as investment
         manager to seventeen associated investment companies. They are 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  Henderson  Global Fund
         Series,  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.

         The Manager has an investment  advisory service division which provides
         investment  management or advice to private clients.  The list required
         by this Item 28 of officers and directors of the Manager, 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,  pursuant to the
         Investment  Advisers  Act of 1940 (SEC File No.  801-15798),  which was
         filed on March 25, 1998.

Item 27. Principal Underwriters

         (a) The names  of  each investment  company (other than the Registrant)
             for   which   Registrant's   principal   underwriter  is  currently
             distributing  securities  of  the  Registrant  and  also  acts as a
             principal  underwriter,  depositor or  investment  adviser  are  as
             follows:

             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 Henderson Global Fund Series, 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 Value Fund Series, Inc.



<PAGE>

                                                                File No. 2-33566
                                                                        811-1886

PART C.     OTHER INFORMATION (continued)

     (b) Name of each  director,  officer or partner of  Registrant's  principal
underwriter named in response to Item 20:

<TABLE>
   
                    Seligman Advisors, Inc.
                    As of January 31, 1999
    
<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
</TABLE>


<PAGE>

                                                                File No. 2-33566
                                                                        811-1886

PART C. OTHER INFORMATION (continued)

<TABLE>
   
                    Seligman Advisors, Inc.
                    As of January 31, 1999
    
<CAPTION>
        (1)                                           (2)                                         (3)
Name and Principal                            Positions and Offices                       Positions and Offices
 Business Address                             with Underwriter                            with Registrant
 ----------------                             ----------------                            ---------------
<S>                                           <C>                                         <C>
J. Brereton Young*                            Senior Vice President, National             None
                                              Accounts Manager
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
</TABLE>



<PAGE>

                                                                File No. 2-33566
                                                                        811-1886

PART C. OTHER INFORMATION (continued)

<TABLE>
   
                    Seligman Advisors, Inc.
                    As of January 31, 1999
    
<CAPTION>
        (1)                                           (2)                                         (3)
Name and Principal                            Positions and Offices                       Positions and Offices
 Business Address                             with Underwriter                            with Registrant
 ----------------                             ----------------                            ---------------
<S>                                           <C>                                         <C>
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
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
Steve 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
</TABLE>



<PAGE>

                                                                File No. 2-33566
                                                                        811-1886

PART C. OTHER INFORMATION (continued)


<TABLE>
   
                    Seligman Advisors, Inc.
                    As of January 31, 1999
    
<CAPTION>
        (1)                                           (2)                                         (3)
Name and Principal                            Positions and Offices                       Positions and Offices
 Business Address                             with Underwriter                            with Registrant
 ----------------                             ----------------                            ---------------
<S>                                           <C>                                         <C>
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
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.

Item 28. Location of Accounts and Records.

         Custodian: Investors Fiduciary Trust Company
                    801 Pennsylvania
                    Kansas City, Missouri 64105 and
                    Seligman Data Corp.
                    100 Park Avenue
                    New York, NY  10017

Item 29. Management Services. Not applicable.

Item 30. Undertakings.  The Registrant undertakes,  (1) to furnish a copy of the
         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 ten percent 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. 2-33566
                                                                        811-1886

                                   SIGNATURES


Pursuant to the  requirements  of the Securities Act of 1933, and the Investment
Company  Act of  1940,  the  Registrant  has  duly  caused  this  Post-Effective
Amendment No. 55 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 24th day of February, 1999.


                                            SELIGMAN CAPITAL FUND, 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. 55 has been signed below
by the following persons in the capacities indicated on February 24, 1999.


     Signature                                        Title
     ---------                                        -----


/s/  Brian T. Zino                          Chairman of the Board
- -----------------------------------         (Principal executive officer)
William C. Morris*                          and Director
                                            

/s/  Brian T. Zino                          Director and President
- -----------------------------------
Brian T. Zino


/s/  Thomas G. Rose                         Treasurer
- -----------------------------------
Thomas G. Rose



John R. Galvin, Director        )
Alice S. Ilchman, Director      )
Frank A. McPherson, Director    )
John E. Merow, Director         )
Betsy S. Michel, Director       )            /s/ Brian T. Zino
James C. Pitney, Director       )            -----------------------------------
James Q. Riordan, Director      )               *Brian T. Zino, Attorney-in-fact
Richard R.  Schmaltz, Director  )
Robert L. Shafer, Director      )
James N. Whitson, Director      )





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