SELIGMAN PENNSYLVANIA MUNICIPAL FUND SERIES
485BPOS, 2000-01-27
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                                                                File No. 33-5793
                                                                        811-4666


                       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.  21                           |X|
                                               ---


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


                  Amendment No.  23                                          |X|
                                ---



- --------------------------------------------------------------------------------
                   SELIGMAN PENNSYLVANIA MUNICIPAL FUND SERIES
               (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 the appropriate
   box).


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


|X| on January 31, 2000 pursuant to paragraph (b)


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

|_|  on (date) pursuant to paragraph (a)(1)

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

|_|  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>

                                S E L I G M A N
                                ---------------
                                MUNICIPAL FUNDS


                                         Seligman Municipal Fund
                                                    Series, Inc.

                                               Seligman Municipal
                                                     Series Trust

                                              Seligman New Jersey
                                             Municipal Fund, Inc.

                                            Seligman Pennsylvania
                                            Municipal Fund Series









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

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

 MUNI-1 2/2000

                                     [GRAPHIC]

                                   PROSPECTUS

                                FEBRUARY 1, 2000

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

                                    Seeking

                                     Income

                                  Exempt From

                                    Regular

                                   Income Tax


                                   managed by

                                     [LOGO]

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


<PAGE>
Table of Contents
The Funds
A discussion of the investment strategies, risks, performance and expenses of
the Funds.
  Overview of the Funds 1
  National Fund 4
  California High-Yield Fund 6
  California Quality Fund 8
  Colorado Fund 10
  Florida Fund 12
  Georgia Fund 14
  Louisiana Fund 16
  Maryland Fund 18
  Massachusetts Fund 20
  Michigan Fund 22
  Minnesota Fund 24
  Missouri Fund 26
  New Jersey Fund 28
  New York Fund 30
  North Carolina Fund 32
  Ohio Fund 34
  Oregon Fund 36
  Pennsylvania Fund 38
  South Carolina Fund 40
  Management of the Funds 42
  Year 2000 42

Shareholder Information
  Deciding Which Class of Shares
    to Buy 43
  Pricing of Fund Shares 45
  Opening Your Account 45
  How to Buy Additional Shares 46
  How to Exchange Shares Among
    the Seligman Mutual Funds 46
  How to Sell Shares 47
  Important Policies That May Affect
  Your Account 48
  Dividends and Capital Gain
  Distributions 49
  Taxes 49
Financial Highlights 50
How to Contact Us 60
For More Information back cover

TIMES CHANGE ... VALUES ENDURE
<PAGE>

The Funds

Overview of the Funds

This Prospectus contains information about four separate funds, which together
offer 19 investment options:

Seligman Municipal Fund Series offers the following 13 series:

<TABLE>
<S>                         <C>                           <C>
National Fund               Massachusetts Fund            New York Fund
Colorado Fund               Michigan Fund                 Ohio Fund
Georgia Fund                Minnesota Fund                Oregon Fund
Louisiana Fund              Missouri Fund                 South Carolina Fund
Maryland Fund
</TABLE>

Seligman Municipal Series Trust offers the following four series:

<TABLE>
<S>                                                        <C>
California High-Yield Fund                                 Florida Fund
California Quality Fund                                    North Carolina Fund
</TABLE>

Seligman New Jersey Municipal Fund, Inc. (New Jersey Fund)

Seligman Pennsylvania Municipal Fund Series (Pennsylvania Fund)

INVESTMENT OBJECTIVES

Each Fund has its own investment objective(s). You should read the discussion
of a particular Fund, in addition to the information below, before making an
investment decision about that Fund.

The Seligman Municipal Funds seek to provide income exempt from regular federal
income taxes and, as applicable, regular state and local personal income taxes.

The Funds are managed for total return, which means, in addition to income
considerations, the Funds (except the Pennsylvania Fund) look to enhance
portfolio returns by pursuing opportunities for capital appreciation. The
Pennsylvania Fund does not pursue capital appreciation as one of its
objectives. At all times, safety of principal is a primary concern of all of
the Funds. However, there is no assurance that the Funds will meet their
objective(s).

PRINCIPAL INVESTMENT STRATEGIES

Each Fund also has its own investment strategies and risks.

Each Fund normally invests at least 80% of its net assets in municipal
securities that pay interest that is exempt from regular federal income taxes
and (except the National Fund) regular personal income taxes in its respective
state.
                       Income may be subject to the federal alternative
                       minimum tax and, where applicable, state alternative
                       minimum tax.



 Alternative
 Minimum               Municipal securities are issued by state and local
 Tax (AMT):            governments, their agencies and authorities, as well as
 A tax imposed on      territories and possessions of the United States, and
 certain types of      the District of Columbia. Municipal bonds are issued to
 income to ensure      obtain funds to finance various public or private
 that all              projects, to meet general expenses, and to refinance
 taxpayers pay at      outstanding debt.
 least a minimum
 amount of taxes.

                       The Funds use a top-down method of selecting securities
                       to purchase. This means the investment manager analyzes
                       the current interest rate environment and trends in the
                       municipal market to formulate investment strategies
                       before selecting individual

securities for each Fund. The investment manager determines the appropriate
cash positions, quality parameters, market sectors, and bond duration, and then
uses in-depth credit analysis to evaluate individual securities considered for
purchase.

Portfolio holdings are continually monitored to identify securities which
should be sold as a result of a deterioration in credit quality. A Fund may
also sell a security when there is a better investment opportunity available in
the market.

                                       1
<PAGE>


The Funds (except the California High-Yield Fund) will purchase only
investment-grade municipal securities, defined as those issues rated in the
four highest rating categories by independent rating agencies at the time of
purchase. The Funds may also purchase non-rated securities if, based on credit
analysis, the investment manager believes that they are of comparable quality
to investment-grade securities.
Under normal market conditions, the Funds will invest in longer maturity bonds
(typically, bonds with maturities in excess of ten years). However, a Fund may
shorten or lengthen maturities to achieve its objective.

A 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 that Fund from achieving its objective(s).

PRINCIPAL RISKS

Below is a description of investment risks that apply to the Funds. More
specific risks that apply to individual Funds are included in the individual
Fund descriptions in the pages that follow.

The value of your investment in a Fund will fluctuate with fluctuations in the
value of the Fund's investment portfolio. You may experience a decline in the
value of your investment and you could lose money if you sell your shares at a
price lower than you paid for them.

The principal factors that may affect the value of a Fund's portfolio are
changes in interest rates and the credit worthiness of a Fund's portfolio
holdings, as described below:

  Interest rate risk. Changes in market interest rates will affect the value
  of a Fund's investment portfolio. In general, the market value of a
  municipal bond moves in the opposite direction of interest rates: the
  market value decreases when interest rates rise and increases when interest
  rates decline. A Fund's net asset value per share moves in the same
  direction as the market value of the municipal securities held in its
  portfolio. Therefore, if interest rates rise, you should expect a Fund's
  net asset value per share to fall, and if interest rates decline, the
  Fund's net asset value per share should rise.

  Additionally, longer maturity bonds, like those held by the Funds, are
  generally more sensitive to changes in interest rates. Each Fund's strategy
  of investing in longer maturity bonds could subject its portfolio holdings
  to a greater degree of market price volatility.

  Declining interest rates increase the risk that portfolio holdings that
  contain call features could be redeemed by the issuer. Proceeds of called
  bonds may be reinvested at lower yields, which could affect the level of
  income a Fund generates.

  Credit risk. A municipal bond issue could deteriorate in quality to the
  extent that its rating is downgraded or its market value declines relative
  to comparable municipal securities. Credit risk also includes the risk that
  an issuer of a municipal bond would be unable to make interest and
  principal payments. Further, revenue bonds held by a Fund may be downgraded
  or may default on payment if revenues from their underlying facilities
  decline.

  The investment manager seeks to minimize the credit risk inherent in
  municipal securities by performing its own in-depth credit analysis on
  every municipal security before purchase and by continuing to monitor all
  securities while they remain in each Fund's portfolio. Each Fund may
  purchase municipal bonds that are insured as to the payment of principal
  and interest. However, the Funds view insurance as an enhancement of
  quality, not as a substitute for it. A Fund will not purchase a bond unless
  the investment manager approves the underlying credit.

The Funds are also subject to the following risks:

  Concentration risk. Each Fund (except the National Fund) invests in
  municipal securities issued by a single state and its municipalities.
  Specific events or factors affecting a particular state may have an impact
  on the municipal securities of that state without affecting the municipal
  market in general. The Funds seek to minimize this risk by diversifying
  investments within the state. In addition, each Fund is subject to certain
  investment restrictions limiting the amount of its assets that can be
  invested in the securities of a single issuer.

                                       2
<PAGE>


  Market risk. At times, market conditions could result in a lack of
  liquidity. The municipal market is an over-the-counter market, which means
  that the Funds purchase and sell portfolio holdings through municipal bond
  dealers. A Fund's ability to sell securities held in its portfolio is
  dependent on the willingness and ability of market participants to provide
  bids that reflect current market levels. Adverse market conditions could
  result in a lack of liquidity by reducing the number of ready buyers.
  Lower-rated securities may be less liquid than higher-rated securities.
  Further, if certain securities or market sectors represented in a Fund's
  portfolio do not perform as expected, that Fund's net asset value may
  decline.

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

PAST PERFORMANCE

Each Fund offers three Classes of shares. The performance information presented
for each Fund provides some indication of the risks of investing in that Fund
by showing how the performance of Class A shares has varied year to year, as
well as how the performance of each Class compares to the Lehman Brothers
Municipal Bond Index, a widely-used measure of municipal bond performance.
Although each Fund's fiscal year ends on September 30, the performance
information is provided on a calendar year basis to assist you in comparing the
returns of the Funds with the returns of other mutual funds. How a 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 among each Fund's
Classes of shares due to their different fees and expenses.

FEES AND EXPENSES

The fees and expenses table provided for each Fund summarizes the fees and
expenses that you may pay as a shareholder of a Fund. Each Class of shares has
its own sales charge schedule and is subject to different ongoing fees.
Shareholder fees are charged directly to your account. Annual fund operating
expenses are deducted from a Fund's assets and are therefore paid indirectly by
you and other Fund shareholders.

Accompanying each Fund's fee and expense table is an example intended to help
you compare the expenses of investing in that Fund with the expenses of
investing in other mutual funds.

                   Discussions of each Fund begin on page 4.


                                       3
<PAGE>

National Fund

INVESTMENT OBJECTIVE
The National Fund seeks to maximize income exempt from regular federal income
taxes to the extent consistent with preservation of capital and with
consideration given to opportunities for capital gain.

PRINCIPAL INVESTMENT STRATEGIES

The National Fund uses the following investment strategies to pursue its
investment objective:

The National Fund invests at least 80% of its net assets in municipal
securities of states, territories, and possessions of the United States, the
District of Columbia, and their political subdivisions, agencies, and
instrumentalities that are rated investment-grade when purchased.

The Fund generally invests in long-term quality municipal bonds. The Fund
favors investing in revenue bonds, which pay interest and principal from
revenues derived from a particular facility or class of facilities. Revenue
bonds generally offer a higher yield than general obligation bonds, the payment
on which is secured by the general taxing power of the issuer.

In abnormal market conditions, the Fund may temporarily invest more than 20% of
its assets in taxable investment-grade fixed-income securities. Under these
circumstances, the Fund may not achieve its investment objective.

SPECIFIC RISKS

In respect of the National Fund's risks, please refer to the "Principal Risks"
section on page 2 of this Prospectus.

                                       4
<PAGE>

National Fund

PAST PERFORMANCE

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 lower. The average annual total returns presented in the table 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. Past
performance does not indicate future results.

                          Average Annual Total Returns

                          Periods Ended 12/31/99
<TABLE>
<CAPTION>
                                         CLASS C    CLASS D
                                          SINCE      SINCE
                    ONE   FIVE    TEN   INCEPTION  INCEPTION
                   YEAR   YEARS  YEARS   5/27/99    2/1/94
                   -----  -----  -----  ---------  ---------
  <S>              <C>    <C>    <C>    <C>        <C>
  Class A          -9.76% 5.47%  5.50%       --        --
  Class C            n/a   n/a    n/a     -7.61%       --
  Class D          -6.90  5.56    n/a        --      2.46%
  Lehman Brothers
  Municipal Bond
  Index            -2.06  6.92   6.89     -2.59(1)   4.67(2)
</TABLE>

 The Lehman Brothers Municipal Bond
 Index is an unmanaged index that does
 not reflect any fees or sales charges,
 and does not reflect state-specific
 bond market performance.

 (1) From 5/31/99.

 (2) From 1/31/94.

                          Class A Annual Total Returns
                                 Calendar Years

                                  [GRAPH]
                              90          5.82%
                              91         11.47%
                              92          7.88%
                              93         14.10%
                              94         -9.95%
                              95         20.10%
                              96          3.33%
                              97         10.38%
                              98          5.67%
                              99         -5.26%

Best calendar quarter return: 8.25% - quarter ended 3/31/95.

Worst calendar quarter return: -8.20% - quarter ended 3/31/94.

FEES AND EXPENSES

<TABLE>
<CAPTION>
 Shareholder Fees                                    Class A     Class C Class D
 ----------------                                    -------     ------- -------
 <S>                                                 <C>         <C>     <C>
 Maximum Sales Charge (Load).......................   4.75%          2%      1%
 Maximum Sales Charge (Load) on Purchases (as a %
  of offering price)...............................   4.75%(/1/)     1%    none
 Maximum Deferred Sales
  Charge (Load) (CDSC) on Redemptions (as a % of
  original purchase price or current
  net asset value, whichever is less)..............    none(/1/)     1%      1%
<CAPTION>
 Annual Fund Operating
 Expenses for Fiscal 1999
 ------------------------
 <S>                                                 <C>         <C>     <C>
 (as a percentage of average net assets)
 Management Fees...................................    .50%        .50%    .50%
 Distribution and/or
  Service (12b-1) Fees.............................    .10%       1.00%   1.00%
 Other Expenses....................................    .23%        .23%    .23%
                                                      -----       -----   -----
 Total Annual Fund Operating Expenses..............    .83%       1.73%   1.73%
                                                      =====       =====   =====
</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 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>
Class A   $556   $727   $  914   $1,452
Class C    374    639    1,029    2,121
Class D    276    545      939    2,041
If you did not sell your shares at the end of each period, your expenses would
be:
<CAPTION>
         1 Year 3 Years 5 Years 10 Years
         ------ ------- ------- --------
<S>      <C>    <C>     <C>     <C>
Class A   $556   $727   $  914   $1,452
Class C    274    639    1,029    2,121
Class D    176    545      939    2,041
</TABLE>
                                        5
<PAGE>

California High-Yield Fund

INVESTMENT OBJECTIVE
The California High-Yield Fund seeks the maximum income exempt from regular
federal income taxes and from the personal income taxes of California
consistent with preservation of capital and with consideration given to capital
gain.

PRINCIPAL INVESTMENT STRATEGIES

The California High-Yield Fund uses the following investment strategies to
pursue its investment objective:

The California High-Yield Fund invests at least 80% of its net assets in
California municipal securities that are within any rating category, including
securities rated below investment-grade or securities that are not rated.

In selecting securities to purchase, the investment manager may consider the
current market conditions, the availability of lower-rated securities, and
whether lower-rated securities offer yields high enough relative to yields on
investment-grade securities to justify their higher risk.

The Fund generally invests in long-term municipal bonds. The Fund favors
investing in revenue bonds, which pay interest and principal from revenues
derived from a particular facility or class of facilities. Revenue bonds
generally offer a higher yield than general obligation bonds, the payment on
which is secured by the general taxing power of the issuer.

In abnormal market conditions, the Fund may temporarily invest more than 20% of
its assets in taxable investment-grade fixed-income securities. Under these
circumstances, the Fund may not achieve its investment objective.

SPECIFIC RISKS

In addition to the principal risks stated on page 2 of this Prospectus, the
California High-Yield Fund is subject to the following risks:

 . Because the Fund invests primarily in the securities of California issuers,
  its performance may be affected by local, state, and regional factors. These
  may include state or local legislation or policy changes, economic factors,
  natural disasters, and the possibility of credit problems, such as the 1994
  bankruptcy of Orange County.

                                       6
<PAGE>

California High-Yield Fund

PAST PERFORMANCE

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 lower. The average annual total returns presented in the table 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. Past
performance does not indicate future results.

                          Class A Annual Total Returns
                                 Calendar Years

                                  [GRAPH]
                              90          6.00
                              91         10.48
                              92          9.53
                              93          9.91
                              94         -2.79
                              95         14.55
                              96          5.52
                              97          8.72
                              98          6.18
                              99         -5.26

Best calendar quarter return: 6.48% - quarter ended 3/31/95.

Worst calendar quarter return: -2.34% - quarter ended 12/31/99.

                          Average Annual Total Returns

                          Periods Ended 12/31/99

<TABLE>
<CAPTION>
                                         CLASS C    CLASS D
                                          SINCE      SINCE
                    ONE   FIVE    TEN   INCEPTION  INCEPTION
                   YEAR   YEARS  YEARS   5/27/99    2/1/94
                   -----  -----  -----  ---------  ---------
  <S>              <C>    <C>    <C>    <C>        <C>
  Class A          -9.70% 4.73%  5.60%       --        --
  Class C            n/a   n/a    n/a     -8.28%       --
  Class D          -7.15  4.74    n/a        --      3.18%
  Lehman Brothers
  Municipal Bond
  Index             2.06  6.92   6.89     -2.59(1)   4.67(2)
</TABLE>

 The Lehman Brothers Municipal Bond
 Index is an unmanaged index that does
 not reflect any fees or sales charges,
 and does not reflect state-specific
 bond market performance.

 (1) From 5/31/99.

 (2) From 1/31/94.

FEES AND EXPENSES

<TABLE>
<CAPTION>
 Shareholder Fees                                    Class A     Class C Class D
 ----------------                                    -------     ------- -------
 <S>                                                 <C>         <C>     <C>
 Maximum Sales Charge (Load).......................   4.75%          2%      1%
 Maximum Sales Charge (Load) on Purchases (as a %
  of offering price)...............................   4.75%(/1/)     1%    none
 Maximum Deferred Sales
  Charge (Load) (CDSC) on Redemptions (as a % of
  original purchase price or current
  net asset value, whichever is less)..............    none(/1/)     1%      1%
<CAPTION>
 Annual Fund Operating
 Expenses for Fiscal 1999
 ------------------------
 <S>                                                 <C>         <C>     <C>
 (as a percentage of average net assets)
 Management Fees...................................    .50%        .50%    .50%
 Distribution and/or
  Service (12b-1) Fees.............................    .10%       1.00%   1.00%
 Other Expenses....................................    .23%        .24%    .24%
                                                      -----       -----   -----
 Total Annual Fund Operating Expenses..............    .83%       1.74%   1.74%
                                                      =====       =====   =====
</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 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>
Class A   $557   $730   $  919   $1,463
Class C    375    643    1,034    2,131
Class D    277    548      944    2,052
If you did not sell your shares at the end of each period, your expenses would
be:
<CAPTION>
         1 Year 3 Years 5 Years 10 Years
         ------ ------- ------- --------
<S>      <C>    <C>     <C>     <C>
Class A   $557   $730   $  919   $1,463
Class C    275    643    1,034    2,131
Class D    177    548      944    2,052
</TABLE>
                                       7
<PAGE>

California Quality Fund

INVESTMENT OBJECTIVE
The California Quality Fund seeks high income exempt from regular federal
income taxes and from the personal income taxes of California consistent with
preservation of capital and with consideration given to capital gain.

PRINCIPAL INVESTMENT STRATEGIES

The California Quality Fund uses the following investment strategies to pursue
its investment objective:

The California Quality Fund invests at least 80% of its net assets in
California municipal securities that are within the three highest ratings of
Moody's (Aaa, Aa, or A) or S&P (AAA, AA, or A) on the date of purchase.

The Fund generally invests in long-term quality municipal bonds. The Fund
favors investing in revenue bonds, which pay interest and principal from
revenues derived from a particular facility or class of facilities. Revenue
bonds generally offer a higher yield than general obligation bonds, the payment
on which is secured by the general taxing power of the issuer.

In abnormal market conditions, the Fund may temporarily invest more than 20% of
its assets in taxable investment-grade fixed-income securities. Under these
circumstances, the Fund may not achieve its investment objective.

SPECIFIC RISKS

In addition to the principal risks stated on page 2 of this Prospectus, the
California Quality Fund is subject to the following risk:

 . Because the Fund invests primarily in the securities of California issuers,
  its performance may be affected by local, state, and regional factors. These
  may include state or local legislation or policy changes, economic factors,
  natural disasters, and the possibility of credit problems, such as the 1994
  bankruptcy of Orange County.

                                       8
<PAGE>

California Quality Fund

PAST PERFORMANCE

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 lower. The average annual total returns presented in the table 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. Past
performance does not indicate future results.

                          Class A Annual Total Returns
                                 Calendar Years

                                  [GRAPH]
                              90          6.57
                              91         11.22
                              92          8.49
                              93         12.61
                              94         -8.30
                              95         19.79
                              96          3.91
                              97          8.80
                              98          6.26
                              99         -6.10

Best calendar quarter return: 8.97% - quarter ended 3/31/95.

Worst calendar quarter return: -6.63% - quarter ended 3/31/94.

                          Average Annual Total Returns

                          Periods Ended 12/31/99
<TABLE>
<CAPTION>
                                          CLASS C    CLASS D
                                           SINCE      SINCE
                    ONE    FIVE    TEN   INCEPTION  INCEPTION
                    YEAR   YEARS  YEARS   5/27/99    2/1/94
                   ------  -----  -----  ---------  ---------
  <S>              <C>     <C>    <C>    <C>        <C>
  Class A          -10.62% 5.19%  5.51%       --        --
  Class C             n/a   n/a    n/a     -8.26%       --
  Class D           -7.87  5.21    n/a        --      2.49%
  Lehman Brothers
  Municipal Bond
  Index             -2.06  6.92   6.89     -2.59(1)   4.67(2)
</TABLE>

 The Lehman Brothers Municipal Bond
 Index is an unmanaged index that does
 not reflect any fees or sales charges,
 and does not reflect state-specific
 bond market performance.

 (1) From 5/31/99.

 (2) From 1/31/94.

FEES AND EXPENSES

<TABLE>
<CAPTION>
 Shareholder Fees                                    Class A     Class C Class D
 ----------------                                    -------     ------- -------
 <S>                                                 <C>         <C>     <C>
 Maximum Sales Charge (Load) ......................   4.75%          2%      1%
 Maximum Sales Charge (Load) on Purchases (as a %
  of offering price)...............................   4.75%(/1/)     1%    none
 Maximum Deferred Sales
  Charge (Load) (CDSC) on Redemptions (as a % of
  original purchase price or current
  net asset value, whichever is less)..............   none (/1/)     1%      1%
<CAPTION>
 Annual Fund Operating
 Expenses for Fiscal 1999
 ------------------------
 <S>                                                 <C>         <C>     <C>
 (as a percentage of average net assets)
 Management Fees...................................    .50%        .50%    .50%
 Distribution and/or
  Service (12b-1) Fees.............................    .10%       1.00%   1.00%
 Other Expenses....................................    .22%        .22%    .22%
                                                      -----       -----   -----
 Total Annual Fund Operating Expenses..............    .82%       1.72%   1.72%
                                                      =====       =====   =====
</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 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>
Class A   $555   $724   $  908   $1,440
Class C    373    636    1,024    2,110
Class D    275    542      933    2,030
If you did not sell your shares at the end of each period, your expenses would
be:
<CAPTION>
         1 Year 3 Years 5 Years 10 Years
         ------ ------- ------- --------
<S>      <C>    <C>     <C>     <C>
Class A   $555   $724   $  908   $1,440
Class C    273    636    1,024    2,110
Class D    175    542      933    2,030
</TABLE>
                                       9
<PAGE>

Colorado Fund

INVESTMENT OBJECTIVES
The Colorado Fund seeks to maximize income exempt from regular federal income
taxes and from Colorado personal income taxes to the extent consistent with
preservation of capital and with consideration given to opportunities for
capital gain.

PRINCIPAL INVESTMENT STRATEGIES

The Colorado Fund uses the following investment strategies to pursue its
investment objectives:

The Colorado Fund invests at least 80% of its net assets in Colorado municipal
securities rated investment-grade when purchased.

The Fund generally invests in long-term quality municipal bonds. The Fund
favors investing in revenue bonds, which pay interest and principal from
revenues derived from a particular facility or class of facilities. Revenue
bonds generally offer a higher yield than general obligation bonds, the payment
on which is secured by the general taxing power of the issuer.

In abnormal market conditions, the Fund may temporarily invest more than 20% of
its assets in taxable investment-grade fixed-income securities. Under these
circumstances, the Fund may not achieve its investment objective.

SPECIFIC RISKS

In addition to the principal risks stated on page 2 of this Prospectus, the
Colorado Fund is subject to the following risks:

 . Because the Fund invests primarily in the securities of Colorado issuers, its
  performance may be affected by local, state, and regional factors. These may
  include state or local legislation or policy changes, economic factors,
  natural disasters, and the possibility of credit problems.

 .  The State is sensitive to national and international business cycles.
   Changing demographics, resulting in possible labor shortages and an increase
   in the cost of living and doing business in Colorado, could negatively
   affect its economy. Turmoil in the world economy, especially in recent years
   in Asia, has the potential to dramatically affect Colorado's economy.

                                       10
<PAGE>

Colorado Fund

PAST PERFORMANCE

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 lower. The average annual total returns presented in the table 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. Past
performance does not indicate future results.

                          Class A Annual Total Returns
                                 Calendar Years

                                   [GRAPH]
                              90          5.05
                              91          9.40
                              92          7.67
                              93         11.11
                              94         -5.13
                              95         13.96
                              96          3.39
                              97          7.52
                              98          5.80
                              99         -5.26

Best calendar quarter return: 6.34% - quarter ended 3/31/95.

Worst calendar quarter return: -4.87% - quarter ended 3/31/94.

                          Average Annual Total Returns

                          Periods Ended 12/31/99
<TABLE>
<CAPTION>
                                         CLASS C    CLASS D
                                          SINCE      SINCE
                    ONE   FIVE    TEN   INCEPTION  INCEPTION
                   YEAR   YEARS  YEARS   5/27/99    2/1/94
                   -----  -----  -----  ---------  ---------
  <S>              <C>    <C>    <C>    <C>        <C>
  Class A          -9.79% 3.89%  4.66%       --        --
  Class C            n/a   n/a    n/a     -8.14%       --
  Class D          -6.89  3.92    n/a        --      2.01%
  Lehman Brothers
  Municipal Bond
  Index            -2.06  6.92   6.89     -2.59(1)   4.67(2)
</TABLE>
 The Lehman Brothers Municipal Bond
 Index is an unmanaged index that does
 not reflect any fees or sales
 charges, and does not reflect state-
 specific bond market performance.

 (1) From 5/31/99.

 (2) From 1/31/94

FEES AND EXPENSES

<TABLE>
<CAPTION>
 Shareholder Fees                                    Class A     Class C Class D
 ----------------                                    -------     ------- -------
 <S>                                                 <C>         <C>     <C>
 Maximum Sales Charge (Load).......................   4.75%          2%      1%
 Maximum Sales Charge (Load) on Purchases (as a %
  of offering price)...............................   4.75%(/1/)     1%    none
 Maximum Deferred Sales
  Charge (Load) (CDSC) on Redemptions (as a % of
  original purchase price or current
  net asset value, whichever is less)..............    none(/1/)     1%      1%
<CAPTION>
 Annual Fund Operating Expenses for Fiscal 1999
 ----------------------------------------------
 <S>                                                 <C>         <C>     <C>
 (as a percentage of average net assets)
 Management Fees...................................    .50%        .50%    .50%
 Distribution and/or
  Service (12b-1) Fees.............................    .10%       1.00%   1.00%
 Other Expenses....................................    .27%        .27%    .27%
                                                      -----       -----   -----
 Total Annual Fund Operating Expenses..............    .87%       1.77%   1.77%
                                                      =====       =====   =====
</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 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>
Class A   $560   $739   $  934   $1,497
Class C    378    652    1,050    2,163
Class D    280    557      959    2,084
If you did not sell your shares at the end of each period, your expenses would
be:
<CAPTION>
         1 Year 3 Years 5 Years 10 Years
         ------ ------- ------- --------
<S>      <C>    <C>     <C>     <C>
Class A   $560   $739   $  934   $1,497
Class C    278    652    1,050    2,163
Class D    180    557      959    2,084
</TABLE>
                                       11
<PAGE>

Florida Fund

INVESTMENT OBJECTIVE
The Florida Fund seeks high income exempt from regular federal income taxes
consistent with preservation of capital and with consideration given to capital
gain.

PRINCIPAL INVESTMENT STRATEGIES

The Florida Fund uses the following investment strategies to pursue its
investment objective:

The Florida Fund invests at least 80% of its net assets in Florida municipal
securities rated investment-grade when purchased.

The Fund generally invests in long-term quality municipal bonds. The Fund
favors investing in revenue bonds, which pay interest and principal from
revenues derived from a particular facility or class of facilities. Revenue
bonds generally offer a higher yield than general obligation bonds, the payment
on which is secured by the general taxing power of the issuer.

In abnormal market conditions, the Fund may temporarily invest more than 20% of
its assets in taxable investment-grade fixed-income securities. Under these
circumstances, the Fund may not achieve its investment objective.

SPECIFIC RISKS

In addition to the principal risks stated on page 2 of this Prospectus, the
Florida Fund is subject to the following risks:

 . Because the Fund invests primarily in the securities of Florida issuers, its
  performance may be affected by local, state, and regional factors. These may
  include state or local legislation or policy changes, economics factors,
  natural disasters, and the possibility of credit problems.

 . The lack of an income tax in Florida exposes total tax collections to more
  volatility than would otherwise be the case and, in the event of an economic
  downturn, could affect the State's ability to pay principal and interest in a
  timely manner.

 . Florida's economy may be affected by foreign trade, crop failures, and severe
  weather conditions and is sensitive to the trends in the tourism and
  construction industries.

                                       12
<PAGE>

Florida Fund

PAST PERFORMANCE

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 lower. The average annual total returns presented in the table 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. Past
performance does not indicate future results.

                          Class A Annual Total Returns
                                 Calendar Years

                                  [GRAPH]
                              90          6.46
                              91         10.62
                              92          9.07
                              93         13.52
                              94         -5.52
                              95         16.67
                              96          2.76
                              97          9.33
                              98          5.67
                              99         -4.89

Best calendar quarter return: 7.00% - quarter ended 3/31/95.

Worst calendar quarter return: -5.99% - quarter ended 3/31/94.

                          Average Annual Total Returns

                          Periods Ended 12/31/99
<TABLE>
<CAPTION>
                                         CLASS C    CLASS D
                                          SINCE      SINCE
                    ONE   FIVE    TEN   INCEPTION  INCEPTION
                   YEAR   YEARS  YEARS   5/27/99    2/1/94
                   -----  -----  -----  ---------  ---------
  <S>              <C>    <C>    <C>    <C>        <C>
  Class A          -9.35% 4.67%  5.64%       --        --
  Class C            n/a   n/a    n/a     -7.51%       --
  Class D          -6.38  4.90    n/a        --      2.81%
  Lehman Brothers
  Municipal Bond
  Index            -2.06  6.92   6.89     -2.59(1)   4.67(2)
</TABLE>

 The Lehman Brothers Municipal Bond
 Index is an unmanaged index that does
 not reflect any fees or sales charges,
 and does not reflect state-specific
 bond market performance.

 (1) From 5/31/99.

 (2) From 1/31/94.

FEES AND EXPENSES

<TABLE>
<CAPTION>
 Shareholder Fees                                    Class A     Class C Class D
 ----------------                                    -------     ------- -------
 <S>                                                 <C>         <C>     <C>
 Maximum Sales Charge (Load).......................   4.75%          2%      1%
 Maximum Sales Charge (Load) on Purchases (as a %
  of offering price)...............................   4.75%(/1/)     1%    none
 Maximum Deferred Sales
  Charge (Load) (CDSC) on Redemptions (as a % of
  original purchase price or current
  net asset value, whichever is less)..............    none(/1/)     1%      1%
<CAPTION>
 Annual Fund Operating Expenses for Fiscal 1999
 ----------------------------------------------
 <S>                                                 <C>         <C>     <C>
 (as a percentage of average net assets)
 Management Fees...................................    .50%        .50%    .50%
 Distribution and/or
  Service (12b-1) Fees.............................    .25%       1.00%   1.00%
 Other Expenses....................................    .28%        .28%    .28%
                                                      -----       -----   -----
 Total Annual Fund Operating Expenses..............   1.03%       1.78%   1.78%
                                                      =====       =====   =====
</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 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>
Class A   $575   $787   $1,017   $1,675
Class C    379    655    1,055    2,174
Class D    281    560      964    2,095
If you did not sell your shares at the end of each period, your expenses would
be:
<CAPTION>
         1 Year 3 Years 5 Years 10 Years
         ------ ------- ------- --------
<S>      <C>    <C>     <C>     <C>
Class A   $575   $787   $1,017   $1,675
Class C    279    655    1,055    2,174
Class D    181    560      964    2,095
</TABLE>
                                       13
<PAGE>

Georgia Fund

INVESTMENT OBJECTIVES
The Georgia Fund seeks to maximize income exempt from regular federal income
taxes and from Georgia personal income taxes to the extent consistent with
preservation of capital and with consideration given to opportunities for
capital gain.

PRINCIPAL INVESTMENT STRATEGIES

The Georgia Fund uses the following investment strategies to pursue its
investment objectives:

The Georgia Fund invests at least 80% of its net assets in Georgia municipal
securities rated investment-grade when purchased.

The Fund generally invests in long-term quality municipal bonds. The Fund
favors investing in revenue bonds, which pay interest and principal from
revenues derived from a particular facility or class of facilities. Revenue
bonds generally offer a higher yield than general obligation bonds, the payment
on which is secured by the general taxing power of the issuer.

In abnormal market conditions, the Fund may temporarily invest more than 20% of
its assets in taxable investment-grade fixed-income securities. Under these
circumstances, the Fund may not achieve its investment objective.

SPECIFIC RISKS

In addition to the principal risks stated on page 2 of this Prospectus, the
Georgia Fund is subject to the following risks:

 . Because the Fund invests primarily in the securities of Georgia issuers, its
  performance may be affected by local, state, and regional factors. These may
  include state or local policy changes, economic factors, natural disasters,
  and the possibility of credit problems.

 . Georgia's economy will be affected by trends in the services, wholesale and
  retail trade, manufacturing, and transportation industries, as these
  industries, along with government, comprise the largest sources of employment
  within the State.

                                       14
<PAGE>

Georgia Fund

PAST PERFORMANCE

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 lower. The average annual total returns presented in the table 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. Past
performance does not indicate future results.

                          Class A Annual Total Returns
                                 Calendar Years

                                  [GRAPH]
                              90          7.01
                              91         10.97
                              92          9.00
                              93         12.21
                              94         -7.64
                              95         19.16
                              96          3.86
                              97          9.02
                              98          5.94
                              99         -5.04

Best calendar quarter return: 7.71% - quarter ended 3/31/95.

Worst calendar quarter return: -6.83% - quarter ended 3/31/94.

                          Average Annual Total Returns

                          Periods Ended 12/31/99
<TABLE>
<CAPTION>
                                         CLASS C    CLASS D
                                          SINCE      SINCE
                    ONE   FIVE    TEN   INCEPTION  INCEPTION
                   YEAR   YEARS  YEARS   5/27/99    2/1/94
                   -----  -----  -----  ---------  ---------
  <S>              <C>    <C>    <C>    <C>        <C>
  Class A          -9.53% 5.26%  5.66%       --        --
  Class C            n/a   n/a    n/a     -7.80%       --
  Class D          -6.76  5.36    n/a        --      2.81%
  Lehman Brothers
  Municipal Bond
  Index            -2.06  6.92   6.89     -2.59(1)   4.67(2)
</TABLE>

 The Lehman Brothers Municipal Bond
 Index is an unmanaged index that does
 not reflect any fees or sales charges,
 and does not reflect state-specific
 bond market performance.

 (1) From 5/31/99.

 (2) From 1/31/94.

FEES AND EXPENSES

<TABLE>
<CAPTION>
 Shareholder Fees                                    Class A     Class C Class D
 ----------------                                    -------     ------- -------
 <S>                                                 <C>         <C>     <C>
 Maximum Sales Charge (Load).......................   4.75%          2%      1%
 Maximum Sales Charge (Load) on Purchases (as a %
  of offering price)...............................   4.75%(/1/)     1%    none
 Maximum Deferred Sales
  Charge (Load) (CDSC) on Redemptions (as a % of
  original purchase price or current
  net asset value, whichever is less)..............    none(/1/)     1%      1%
<CAPTION>
 Annual Fund Operating Expenses for Fiscal 1999
 ----------------------------------------------
 <S>                                                 <C>         <C>     <C>
 (as a percentage of average net assets)
 Management Fees...................................    .50%        .50%    .50%
 Distribution and/or
  Service (12b-1) Fees.............................    .10%       1.00%   1.00%
 Other Expenses....................................    .27%        .27%    .27%
                                                      -----       -----   -----
 Total Annual Fund Operating Expenses..............    .87%       1.77%   1.77%
                                                      =====       =====   =====
</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 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>
Class A   $560   $739   $  934   $1,497
Class C    378    652    1,050    2,163
Class D    280    557      959    2,084
If you did not sell your shares at the end of each period, your expenses would
be:
<CAPTION>
         1 Year 3 Years 5 Years 10 Years
         ------ ------- ------- --------
<S>      <C>    <C>     <C>     <C>
Class A   $560   $739   $  934   $1,497
Class C    278    652    1,050    2,163
Class D    180    557      959    2,084
</TABLE>

                                       15
<PAGE>

Louisiana Fund

INVESTMENT OBJECTIVES
The Louisiana Fund seeks to maximize income exempt from regular federal income
taxes and from Louisiana personal income taxes to the extent consistent with
preservation of capital and with consideration given to opportunities for
capital gain.

PRINCIPAL INVESTMENT STRATEGIES

The Louisiana Fund uses the following investment strategies to pursue its
investment objectives:

The Louisiana Fund invests at least 80% of its net assets in Louisiana
municipal securities rated investment-grade when purchased.

The Fund generally invests in long-term quality municipal bonds. The Fund
favors investing in revenue bonds, which pay interest and principal from
revenues derived from a particular facility or class of facilities. Revenue
bonds generally offer a higher yield than general obligation bonds, the payment
on which is secured by the general taxing power of the issuer.

In abnormal market conditions, the Fund may temporarily invest more than 20% of
its assets in taxable investment-grade fixed-income securities. Under these
circumstances, the Fund may not achieve its investment objective.

SPECIFIC RISKS

In addition to the principal risks stated on page 2 of this Prospectus, the
Louisiana Fund is subject to the following risks:

 . Because the Fund invests primarily in the securities of Louisiana issuers,
  its performance may be affected by local, state, and regional factors. These
  may include state or local legislation or policy changes, economic factors,
  natural disasters, and the possibility of credit problems.

 . Louisiana's economy is affected by trends in the oil and gas, tourism, and
  gaming industries within the State.

                                       16
<PAGE>

Louisiana Fund

PAST PERFORMANCE

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 lower. The average annual total returns presented in the table 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. Past
performance does not indicate future results.

                              Class A Annual Total
                             Returns Calendar Years

                                  [GRAPH]
                              90          6.86
                              91         11.38
                              92          7.83
                              93         11.45
                              94         -5.89
                              95         17.10
                              96          3.49
                              97          8.45
                              98          5.93
                              99         -4.62

Best calendar quarter return: 6.57% - quarter ended 3/31/95.

Worst calendar quarter return: -5.38% - quarter ended 3/31/94.

                          Average Annual Total Returns

                          Periods Ended 12/31/99
<TABLE>
<CAPTION>
                                         CLASS C    CLASS D
                                          SINCE      SINCE
                    ONE   FIVE    TEN   INCEPTION  INCEPTION
                   YEAR   YEARS  YEARS   5/27/99    2/1/94
                   -----  -----  -----  ---------  ---------
  <S>              <C>    <C>    <C>    <C>        <C>
  Class A          -9.20% 4.81%  5.46%       --        --
  Class C            n/a   n/a    n/a     -7.18%       --
  Class D          -6.27  4.89    n/a        --      2.70%
  Lehman Brothers
  Municipal Bond
  Index            -2.06  6.92   6.89     -2.59(1)   4.67(2)
</TABLE>

 The Lehman Brothers Municipal Bond
 Index is an unmanaged index that does
 not reflect any fees or sales charges,
 and does not reflect state-specific
 bond market performance.

 (1) From 5/31/99.

 (2) From 1/31/94.

FEES AND EXPENSES

<TABLE>
<CAPTION>
 Shareholder Fees                                    Class A     Class C Class D
 ----------------                                    -------     ------- -------
 <S>                                                 <C>         <C>     <C>
 Maximum Sales Charge (Load).......................   4.75%          2%      1%
 Maximum Sales Charge (Load) on Purchases (as a %
  of offering price)...............................   4.75%(/1/)     1%    none
 Maximum Deferred Sales
  Charge (Load) (CDSC) on Redemptions (as a % of
  original purchase price or current
  net asset value, whichever is less)..............    none(/1/)     1%      1%
<CAPTION>
 Annual Fund Operating
 Expenses for Fiscal 1999
 ------------------------
 <S>                                                 <C>         <C>     <C>
 (as a percentage of average net assets)
 Management Fees...................................    .50%        .50%    .50%
 Distribution and/or
  Service (12b-1) Fees.............................    .10%       1.00%   1.00%
 Other Expenses....................................    .24%        .24%    .24%
                                                      -----       -----   -----
 Total Annual Fund Operating Expenses..............    .84%       1.74%   1.74%
                                                      =====       =====   =====
</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 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>
Class A   $557   $730   $  919   $1,463
Class C    375    643    1,034    2,131
Class D    277    548      944    2,052
If you did not sell your shares at the end of each period, your expenses would
be:
<CAPTION>
         1 Year 3 Years 5 Years 10 Years
         ------ ------- ------- --------
<S>      <C>    <C>     <C>     <C>
Class A   $557   $730   $  919   $1,463
Class C    275    643    1,034    2,131
Class D    177    548      944    2,052
</TABLE>
                                       17
<PAGE>

Maryland Fund

INVESTMENT OBJECTIVES
The Maryland Fund seeks to maximize income exempt from regular federal income
taxes and from Maryland personal income taxes to the extent consistent with
preservation of capital and with consideration given to opportunities for
capital gain.

PRINCIPAL INVESTMENT STRATEGIES

The Maryland Fund uses the following investment strategies to pursue its
investment objectives:

The Maryland Fund invests at least 80% of its net assets in Maryland municipal
securities rated investment-grade when purchased.

The Fund generally invests in long-term quality municipal bonds. The Fund
favors investing in revenue bonds, which pay interest and principal from
revenues derived from a particular facility or class of facilities. Revenue
bonds generally offer a higher yield than general obligation bonds, the payment
on which is secured by the general taxing power of the issuer.

In abnormal market conditions, the Fund may temporarily invest more than 20% of
its assets in taxable investment-grade fixed-income securities. Under these
circumstances, the Fund may not achieve its investment objective.

SPECIFIC RISKS

In addition to the principal risks stated on page 2 of this Prospectus, the
Maryland Fund is subject to the following risks:

 .  Because the Fund invests primarily in the securities of Maryland issuers,
   its performance may be affected by local, state, and regional factors. These
   may include state or local legislation or policy changes, economic factors,
   natural disasters, and the possibility of credit problems.

 .  Because the Fund favors investing in revenue bonds, including revenue bonds
   issued on behalf of health-care providers, its performance may also be
   affected by economic developments impacting a specific facility or type of
   facility.

 .  The performance of general obligation bonds of the State of Maryland may be
   affected by efforts to limit or reduce state or local taxes.

                                       18
<PAGE>

Maryland Fund

PAST PERFORMANCE

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 lower. The average annual total returns presented in the table 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. Past
performance does not indicate future results.

                          Class A Annual Total Returns
                                 Calendar Years

                                  [GRAPH]
                              90          6.15
                              91         10.47
                              92          8.24
                              93         11.93
                              94         -5.48
                              95         16.84
                              96          3.66
                              97          8.09
                              98          5.85
                              99         -3.34

Best calendar quarter return: 6.96% - quarter ended 3/31/95.

Worst calendar quarter return: -5.29% - quarter ended 3/31/94.

                          Average Annual Total Returns

                          Periods Ended 12/31/99
<TABLE>
<CAPTION>
                                         CLASS C    CLASS D
                                          SINCE      SINCE
                    ONE   FIVE    TEN   INCEPTION  INCEPTION
                   YEAR   YEARS  YEARS   5/27/99    2/1/94
                   -----  -----  -----  ---------  ---------
  <S>              <C>    <C>    <C>    <C>        <C>
  Class A          -7.97% 4.99%  5.53%       --        --
  Class C            n/a   n/a    n/a     -6.26%       --
  Class D          -4.79  5.11    n/a        --      2.97%
  Lehman Brothers
  Municipal Bond
  Index            -2.06  6.92   6.89     -2.59(1)   4.67(2)
</TABLE>

 The Lehman Brothers Municipal Bond
 Index is an unmanaged index that does
 not reflect any fees or sales charges,
 and does not reflect state-specific
 bond market performance.

 (1) From 5/31/99.

 (2) From 1/31/94.

FEES AND EXPENSES

<TABLE>
<CAPTION>
 Shareholder Fees                                   Class A     Class C Class D
 ----------------                                   -------     ------- -------
 <S>                                                <C>         <C>     <C>
 Maximum Sales Charge (Load).....................    4.75%          2%      1%
 Maximum Sales Charge (Load) on Purchases (as a %
  of offering price).............................    4.75%(/1/)     1%    none
 Maximum Deferred Sales
  Charge (Load) (CDSC) on
  Redemptions (as a % of original
  purchase price or current
  net asset value, whichever is less)............     none(/1/)     1%      1%
<CAPTION>
 Annual Fund Operating
 Expenses for Fiscal 1999
 ------------------------
 <S>                                                <C>         <C>     <C>
 (as a percentage of average net assets)
 Management Fees.................................     .50%        .50%    .50%
 Distribution and/or
  Service (12b-1) Fees...........................     .10%       1.00%   1.00%
 Other Expenses..................................     .27%        .27%    .27%
                                                     -----       -----   -----
 Total Annual Fund Operating Expenses............     .87%       1.77%   1.77%
                                                     =====       =====   =====
</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 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>
Class A   $560   $739   $  934   $1,497
Class C    378    652    1,050    2,163
Class D    280    557      959    2,084
If you did not sell your shares at the end of each period, your expenses would
be:
<CAPTION>
         1 Year 3 Year  5 Year  10 Years
         ------ ------- ------- --------
<S>      <C>    <C>     <C>     <C>
Class A   $560   $739   $  934   $1,497
Class C    278    652    1,050    2,163
Class D    180    557      959    2,084
</TABLE>
                                       19
<PAGE>

Massachusetts Fund

INVESTMENT OBJECTIVES
The Massachusetts Fund seeks to maximize income exempt from regular federal
income taxes and from Massachusetts personal income taxes to the extent
consistent with preservation of capital and with consideration given to
opportunities for capital gain.

PRINCIPAL INVESTMENT STRATEGIES

The Massachusetts Fund uses the following investment strategies to pursue its
investment objectives:

The Massachusetts Fund invests at least 80% of its net assets in Massachusetts
municipal securities rated investment-grade when purchased.

The Fund generally invests in long-term quality municipal bonds. The Fund
favors investing in revenue bonds, which pay interest and principal from
revenues derived from a particular facility or class of facilities. Revenue
bonds generally offer a higher yield than general obligation bonds, the payment
on which is secured by the general taxing power of the issuer.

In abnormal market conditions, the Fund may temporarily invest more than 20% of
its assets in taxable investment-grade fixed-income securities. Under these
circumstances, the Fund may not achieve its investment objective.

SPECIFIC RISKS

In addition to the principal risks stated on page 2 of this Prospectus, the
Massachusetts Fund is subject to the following risks:

 . Because the Fund invests primarily in the securities of Massachusetts
  issuers, its performance may be affected by local, state, and regional
  factors. These may include state or local legislation or policy changes,
  economic factors, natural disasters, and the possibility of credit problems.

 . Massachusetts and certain of its cities, towns, counties, and other political
  subdivisions have, at certain times in the past, experienced serious
  financial difficulties which have adversely affected their credit standing.
  The recurrence of these financial difficulties could adversely affect the
  market value and marketability of, or result in default payments on,
  outstanding obligations issued by Massachusetts or its public authorities or
  municipalities.

                                       20
<PAGE>

Massachusetts Fund

PAST PERFORMANCE

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 lower. The average annual total returns presented in the table 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. Past
performance does not indicate future results.

                          Class A Annual Total Returns
                                 Calendar Years

                                  [GRAPH]
                              90          5.42
                              91         12.97
                              92          9.08
                              93         11.52
                              94         -4.43
                              95         15.20
                              96          4.14
                              97          8.68
                              98          6.55
                              99         -6.73

Best calendar quarter return: 6.16% - quarter ended 3/31/95.

Worst calendar quarter return: -4.69% - quarter ended 3/31/94.

                          Average Annual Total Returns

                          Periods Ended 12/31/99
<TABLE>
<CAPTION>
                                          CLASS C    CLASS D
                                           SINCE      SINCE
                    ONE    FIVE    TEN   INCEPTION  INCEPTION
                    YEAR   YEARS  YEARS   5/27/99    2/1/94
                   ------  -----  -----  ---------  ---------
  <S>              <C>     <C>    <C>    <C>        <C>
  Class A          -11.11% 4.30%  5.50%       --        --
  Class C             n/a   n/a    n/a     -9.02%       --
  Class D           -8.47  4.35    n/a        --      2.51%
  Lehman Brothers
  Municipal Bond
  Index             -2.06  6.92   6.89     -2.59(1)   4.67(2)
</TABLE>

 The Lehman Brothers Municipal Bond
 Index is an unmanaged index that does
 not reflect any fees or sales charges,
 and does not reflect state-specific
 bond market performance.

 (1) From 5/31/99.

 (2) From 1/31/94.

FEES AND EXPENSES
<TABLE>
<CAPTION>
 Shareholder Fees                                    Class A     Class C Class D
 ----------------                                    -------     ------- -------
 <S>                                                 <C>         <C>     <C>
 Maximum Sales Charge (Load).......................   4.75%          2%      1%
 Maximum Sales Charge (Load) on Purchases (as a %
  of offering price)...............................   4.75%(/1/)     1%    none
 Maximum Deferred Sales
  Charge (Load) (CDSC) on
  Redemptions (as a % of original
  purchase price or current
  net asset value, whichever is less)..............    none(/1/)     1%      1%
<CAPTION>
 Annual Fund Operating
 Expenses for Fiscal 1999
 ------------------------
 <S>                                                 <C>         <C>     <C>
 (as a percentage of average net assets)
 Management Fees...................................    .50%        .50%    .50%
 Distribution and/or
  Service (12b-1) Fees.............................    .10%       1.00%   1.00%
 Other Expenses....................................    .23%        .23%    .23%
                                                      -----       -----   -----
 Total Annual Fund Operating Expenses..............    .83%       1.73%   1.73%
                                                      =====       =====   =====
</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 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>
Class A   $556   $727   $  914   $1,452
Class C    374    639    1,029    2,121
Class D    276    545      939    2,041

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

<CAPTION>
         1 Year 3 Years 5 Years 10 Years
         ------ ------- ------- --------
<S>      <C>    <C>     <C>     <C>
Class A   $556   $727   $  914   $1,452
Class C    274    639    1,029    2,121
Class D    176    545      939    2,041
</TABLE>
                                       21
<PAGE>

Michigan Fund

INVESTMENT OBJECTIVES
The Michigan Fund seeks to maximize income exempt from regular federal income
taxes and from Michigan personal income taxes to the extent consistent with
preservation of capital and with consideration given to opportunities for
capital gain.

PRINCIPAL INVESTMENT STRATEGIES

The Michigan Fund uses the following investment strategies to pursue its
investment objectives:

The Michigan Fund invests at least 80% of its net assets in Michigan municipal
securities rated investment-grade when purchased.

The Fund generally invests in long-term quality municipal bonds. The Fund
favors investing in revenue bonds, which pay interest and principal from
revenues derived from a particular facility or class of facilities. Revenue
bonds generally offer a higher yield than general obligation bonds, the payment
on which is secured by the general taxing power of the issuer.

In abnormal market conditions, the Fund may temporarily invest more than 20% of
its assets in taxable investment-grade fixed-income securities. Under these
circumstances, the Fund may not achieve its investment objective.

SPECIFIC RISKS

In addition to the principal risks stated on page 2 of this Prospectus, the
Michigan Fund is subject to the following risks:

 . Because the Fund invests primarily in the securities of Michigan issuers, its
  performance may be affected by local, state, and regional factors. These may
  include state or local legislation or policy changes, economic factors,
  natural disasters, and the possibility of credit problems.

 . The principal sectors of Michigan's economy are manufacturing of durable
  goods (including automobiles and components and office equipment), tourism,
  and agriculture. The cyclical nature of these industries may adversely affect
  the revenue stream of the State and its political subdivisions because it may
  adversely impact tax sources, particularly sales taxes, income taxes and
  single business taxes.

                                       22
<PAGE>

Michigan Fund

PAST PERFORMANCE

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 lower. The average annual total returns presented in the table 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. Past
performance does not indicate future results.
                          Class A Annual Total Returns
                                 Calendar Years

                                     [GRAPH]
                              90          5.85
                              91         12.01
                              92          9.31
                              93         11.48
                              94         -4.84
                              95         15.78
                              96          3.74
                              97          8.73
                              98          6.12
                              99         -3.80

Best calendar quarter return: 6.57% - quarter ended 3/31/95.

Worst calendar quarter return: -4.63% - quarter ended 3/31/94.


                          Average Annual Total Returns

                          Periods Ended 12/31/99
<TABLE>
<CAPTION>
                                         CLASS C    CLASS D
                                          SINCE      SINCE
                    ONE   FIVE    TEN   INCEPTION  INCEPTION
                   YEAR   YEARS  YEARS   5/27/99    2/1/94
                   -----  -----  -----  ---------  ---------
  <S>              <C>    <C>    <C>    <C>        <C>
  Class A          -8.38% 4.89%  5.73%       --        --
  Class C            n/a   n/a    n/a     -6.50%       --
  Class D          -5.59  4.91    n/a        --      2.90%
  Lehman Brothers
  Municipal Bond
  Index            -2.06  6.42   6.89     -2.59(1)   4.67(2)
</TABLE>

 The Lehman Brothers Municipal Bond
 Index is an unmanaged index that does
 not reflect any fees or sales charges,
 and does not reflect state-specific
 bond market performance.

 (1) From 5/31/99.

 (2) From 1/31/94.

FEES AND EXPENSES
<TABLE>
<CAPTION>
 Shareholder Fees                                    Class A     Class C Class D
 ----------------                                    -------     ------- -------
 <S>                                                 <C>         <C>     <C>
 Maximum Sales Charge (Load) ......................   4.75%          2%      1%
 Maximum Sales Charge (Load) on Purchases (as a %
  of offering price)...............................   4.75%(/1/)     1%    none
 Maximum Deferred Sales
  Charge (Load) (CDSC) on Redemptions (as a % of
  original purchase price or current
  net asset value, whichever is less)..............    none(/1/)     1%      1%
<CAPTION>
 Annual Fund Operating
 Expenses for Fiscal 1999
 ------------------------
 <S>                                                 <C>         <C>     <C>
 (as a percentage of average net assets)
 Management Fees...................................    .50%        .50%    .50%
 Distribution and/or
  Service (12b-1) Fees.............................    .10%       1.00%   1.00%
 Other Expenses....................................    .22%        .22%    .22%
                                                      -----       -----   -----
 Total Annual Fund Operating Expenses..............    .82%       1.72%   1.72%
                                                      =====       =====   =====
</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 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>
Class A   $555   $724   $  908   $1,440
Class C    373    636    1,024    2,110
Class D    275    542      933    2,030

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

<CAPTION>
         1 Year 3 Years 5 Years 10 Years
         ------ ------- ------- --------
<S>      <C>    <C>     <C>     <C>
Class A   $555   $724   $  908   $1,440
Class C    273    636    1,024    2,110
Class D    175    542      933    2,030
</TABLE>
                                       23
<PAGE>

Minnesota Fund

INVESTMENT OBJECTIVES
The Minnesota Fund seeks to maximize income exempt from regular federal income
taxes and from regular Minnesota personal income taxes to the extent consistent
with preservation of capital and with consideration given to opportunities for
capital gain.

PRINCIPAL INVESTMENT STRATEGIES

The Minnesota Fund uses the following investment strategies to pursue its
investment objectives:

The Minnesota Fund invests at least 80% of its net assets in Minnesota
municipal securities rated investment-grade when purchased.

The Fund generally invests in long-term quality municipal bonds. The Fund
favors investing in revenue bonds, which pay interest and principal from
revenues derived from a particular facility or class of facilities. Revenue
bonds generally offer a higher yield than general obligation bonds, the payment
on which is secured by the general taxing power of the issuer.

In abnormal market conditions, the Fund may temporarily invest more than 20% of
its assets in taxable investment-grade fixed-income securities, subject to
applicable requirements. Under these circumstances, the Fund may not achieve
its investment objective.

SPECIFIC RISKS

In addition to the principal risks stated on page 2 of this Prospectus, the
Minnesota Fund is subject to the following risks:

 . Because the Fund invests primarily in the securities of Minnesota issuers,
  its performance may be affected by local, state, and regional factors. These
  may include state or local legislation or policy changes, economic factors,
  natural disasters, and the possibility of credit problems.

 . Pursuant to Minnesota legislation enacted in 1995, dividends that would
  otherwise be exempt from Minnesota personal income tax in the case of
  individuals, estates, and trusts, could become subject to the Minnesota
  personal income tax if it were judicially determined that exempting such
  dividends would discriminate against interstate commerce.

                                       24
<PAGE>

Minnesota Fund

PAST PERFORMANCE

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 lower. The average annual total returns presented in the table 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. Past
performance does not indicate future results.

                          Class A Annual Total Returns
                                 Calendar Years

                                  [GRAPH]
                              90          6.52
                              91          7.53
                              92          7.67
                              93         13.49
                              94         -2.54
                              95         11.41
                              96          3.39
                              97          7.02
                              98          6.43
                              99         -4.15

Best calendar quarter return: 5.00% - quarter ended 3/31/95.

Worst calendar quarter return: -3.23% - quarter ended 3/31/94.

                          Average Annual Total Returns

                          Periods Ended 12/31/99
<TABLE>
<CAPTION>
                                         CLASS C    CLASS D
                                          SINCE      SINCE
                    ONE   FIVE    TEN   INCEPTION  INCEPTION
                   YEAR   YEARS  YEARS   5/27/99    2/1/94
                   -----  -----  -----  ---------  ---------
  <S>              <C>    <C>    <C>    <C>        <C>
  Class A          -8.69% 3.64%  5.02%       --        --
  Class C            n/a   n/a    n/a     -7.01%       --
  Class D          -5.92  3.70    n/a        --      2.33%
  Lehman Brothers
  Municipal Bond
  Index            -2.06  6.92   6.89     -2.59(1)   4.67(2)
</TABLE>

 The Lehman Brothers Municipal Bond
 Index is an unmanaged index that does
 not reflect any fees or sales charges,
 and does not reflect state-specific
 bond market performance.

 (1) From 5/31/99.

 (2) From 1/31/94.

 FEES AND EXPENSES
<TABLE>
<CAPTION>
 Shareholder Fees                                    Class A     Class C Class D
 ----------------                                    -------     ------- -------
 <S>                                                 <C>         <C>     <C>
 Maximum Sales Charge (Load).......................   4.75%          2%      1%
 Maximum Sales Charge (Load) on Purchases (as a %
  of offering price)...............................   4.75%(/1/)     1%    none
 Maximum Deferred Sales
  Charge (Load) (CDSC) on Redemptions (as a % of
  original purchase price or current
  net asset value, whichever is less)..............    none(/1/)     1%      1%
<CAPTION>
 Annual Fund Operating
 Expenses for Fiscal 1999
 ------------------------
 <S>                                                 <C>         <C>     <C>
 (as a percentage of average net assets)
 Management Fees...................................    .50%        .50%    .50%
 Distribution and/or
  Service (12b-1) Fees.............................    .10%       1.00%   1.00%
 Other Expenses....................................    .24%        .24%    .24%
                                                      -----       -----   -----
 Total Annual Fund Operating Expenses..............    .84%       1.74%   1.74%
                                                      =====       =====   =====
</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 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>
Class A   $557   $730   $  919   $1,463
Class C    375    643    1,034    2,131
Class D    277    548      944    2,052
If you did not sell your shares at the end of each period, your expenses would
be:
<CAPTION>
         1 Year 3 Years 5 Years 10 Years
         ------ ------- ------- --------
<S>      <C>    <C>     <C>     <C>
Class A   $557   $730   $  919   $1,463
Class C    275    643    1,034    2,131
Class D    177    548      944    2,052
</TABLE>
                                       25
<PAGE>

Missouri Fund

INVESTMENT OBJECTIVES
The Missouri Fund seeks to maximize income exempt from regular federal income
taxes and from Missouri personal income taxes to the extent consistent with
preservation of capital and with consideration given to opportunities for
capital gain.

PRINCIPAL INVESTMENT STRATEGIES

The Missouri Fund uses the following investment strategies to pursue its
investment objectives:

The Missouri Fund invests at least 80% of its net assets in Missouri municipal
securities rated investment-grade when purchased.

The Fund generally invests in long-term quality municipal bonds. The Fund
favors investing in revenue bonds, which pay interest and principal from
revenues derived from a particular facility or class of facilities. Revenue
bonds generally offer a higher yield than general obligation bonds, the payment
on which is secured by the general taxing power of the issuer.

In abnormal market conditions, the Fund may temporarily invest more than 20% of
its assets in taxable investment-grade fixed-income securities. Under these
circumstances, the Fund may not achieve its investment objective.

SPECIFIC RISKS

In addition to the principal risks stated on page 2 of this Prospectus, the
Missouri Fund is subject to the following risks:

 . Because the Fund invests primarily in the securities of Missouri issuers, its
  performance may be affected by local, state, and regional factors. These may
  include state or local legislation or policy changes, economic factors,
  natural disasters, and the possibility of credit problems.

 . The national economic recession of the early 1980s had a disproportionately
  adverse impact on Missouri's economy, and its unemployment levels. A return
  to a pattern of high unemployment could adversely affect the Missouri debt
  obligations acquired by the Fund.

 . Defense-related business plays an important role in Missouri's economy.
  Negative trends in this industry or relocations of major employers could have
  a negative impact on the economy of the State, particularly on the economy of
  the St. Louis metropolitan area.

                                       26
<PAGE>

Missouri Fund

PAST PERFORMANCE

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 lower. The average annual total returns presented in the table 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. Past
performance does not indicate future results.

                          Class A Annual Total Returns
                                 Calendar Years

                                  [GRAPH]
                              90          6.93%
                              91         11.37%
                              92          7.25%
                              93         11.40%
                              94         -6.32%
                              95         16.95%
                              96          3.71%
                              97          8.08%
                              98          5.77%
                              99         -5.59%

Best calendar quarter return: 7.31% - quarter ended 3/31/95.

Worst calendar quarter return: -6.11% - quarter ended 3/31/94.

                          Average Annual Total Returns

                          Periods Ended 12/31/99
<TABLE>
<CAPTION>
                                          CLASS C    CLASS D
                                           SINCE      SINCE
                    ONE    FIVE    TEN   INCEPTION  INCEPTION
                    YEAR   YEARS  YEARS   5/27/99    2/1/94
                   ------  -----  -----  ---------  ---------
  <S>              <C>     <C>    <C>    <C>        <C>
  Class A          -10.08% 4.50%  5.21%       --        --
  Class C             n/a   n/a    n/a     -8.10%       --
  Class D           -7.35  4.55    n/a        --      2.32%
  Lehman Brothers
  Municipal Bond
  Index             -2.06  6.92   6.89     -2.59(1)   4.67(2)
</TABLE>

 The Lehman Brothers Municipal Bond
 Index is an unmanaged index that does
 not reflect any fees or sales charges,
 and does not reflect state-specific
 bond market performance.

 (1) From 5/31/99.

 (2) From 1/31/94.

FEES AND EXPENSES
<TABLE>
<CAPTION>
 Shareholder Fees                                    Class A     Class C Class D
 ----------------                                    -------     ------- -------
 <S>                                                 <C>         <C>     <C>
 Maximum Sales Charge (Load).......................   4.75%          2%      1%
 Maximum Sales Charge (Load) on Purchases (as a %
  of offering price)...............................   4.75%(/1/)     1%    none
 Maximum Deferred Sales
  Charge (Load) (CDSC) on Redemptions (as a % of
  original purchase price or current
  net asset value, whichever is less)..............    none(/1/)     1%      1%
<CAPTION>
 Annual Fund Operating Expenses for Fiscal 1999
 ----------------------------------------------
 <S>                                                 <C>         <C>     <C>
 (as a percentage of average net assets)
 Management Fees...................................    .50%        .50%    .50%
 Distribution and/or
  Service (12b-1) Fees.............................    .10%       1.00%   1.00%
 Other Expenses....................................    .27%        .27%    .27%
                                                      -----       -----   -----
 Total Annual Fund Operating Expenses..............    .87%       1.77%   1.77%
                                                      =====       =====   =====
</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 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>
Class A   $560   $739   $  934   $1,497
Class C    378    652    1,050    2,163
Class D    280    557      959    2,084

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

<CAPTION>
         1 Year 3 Years 5 Years 10 Years
         ------ ------- ------- --------
<S>      <C>    <C>     <C>     <C>
Class A   $560   $739   $  934   $1,497
Class C    278    652    1,050    2,163
Class D    180    557      959    2,084
</TABLE>
                                       27
<PAGE>

New Jersey Fund

INVESTMENT OBJECTIVE
The New Jersey Fund seeks to maximize income exempt from regular federal income
tax and New Jersey gross income tax consistent with preservation of capital and
with consideration given to opportunities for capital gain.

PRINCIPAL INVESTMENT STRATEGIES

The New Jersey Fund uses the following investment strategies to pursue its
investment objective:

The New Jersey Fund invests at least 80% of its net assets in New Jersey
municipal securities rated investment-grade when purchased.

The Fund generally invests in long-term quality municipal bonds. The Fund
favors investing in revenue bonds, which pay interest and principal from
revenues derived from a particular facility or class of facilities. Revenue
bonds generally offer a higher yield than general obligation bonds, the payment
on which is secured by the general taxing power of the issuer.

In abnormal market conditions, the Fund may temporarily invest more than 20% of
its assets in taxable investment-grade fixed-income securities. Under these
circumstances, the Fund may not achieve its investment objective.

SPECIFIC RISKS

In addition to the principal risks stated on page 2 of this Prospectus, the New
Jersey Fund is subject to the following risks:

 . Because the Fund invests primarily in the securities of New Jersey issuers,
  its performance may be affected by local, state, and regional factors. These
  may include state or local legislation or policy changes, economic factors,
  natural disasters, and the possibility of credit problems.

 . New Jersey's economic base is diversified, consisting of a variety of
  manufacturing, construction, and service industries, supplemented by rural
  areas with selective commercial agriculture. New Jersey's economy will be
  affected by trends in these sectors.

                                       28
<PAGE>

New Jersey Fund

PAST PERFORMANCE

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 lower. The average annual total returns presented in the table 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. Past
performance does not indicate future results.

                          Class A Annual Total Returns
                                 Calendar Years

                                  [GRAPH]
                              90          6.78%
                              91         11.04%
                              92          8.99%
                              93         12.37%
                              94         -6.15%
                              95         15.57%
                              96          3.40%
                              97          8.93%
                              98          6.00%
                              99         -5.58%

Best calendar quarter return: 6.78% - quarter ended 3/31/95.

Worst calendar quarter return: -5.63% - quarter ended 3/31/94.

                          Average Annual Total Returns

                          Periods Ended 12/31/99
<TABLE>
<CAPTION>
                                          CLASS C    CLASS D
                                           SINCE      SINCE
                    ONE    FIVE    TEN   INCEPTION  INCEPTION
                    YEAR   YEARS  YEARS   5/27/99    2/1/94
                   ------  -----  -----  ---------  ---------
  <S>              <C>     <C>    <C>    <C>        <C>
  Class A          -10.07% 4.42%  5.40%       --        --
  Class C             n/a   n/a    n/a     -8.19%       --
  Class D           -7.08  4.64    n/a        --      2.62%
  Lehman Brothers
  Municipal Bond
  Index             -2.06  6.92   6.89     -2.59(1)   4.67(2)
</TABLE>

 The Lehman Brothers Municipal Bond
 Index is an unmanaged index that does
 not reflect any fees or sales charges,
 and does not reflect state-specific
 bond market performance.

 (1) From 5/31/99.

 (2) From 1/31/94.

FEES AND EXPENSES
<TABLE>
<CAPTION>
 Shareholder Fees                                    Class A     Class C Class D
 ----------------                                    -------     ------- -------
 <S>                                                 <C>         <C>     <C>
 Maximum Sales Charge (Load).......................   4.75%          2%      1%
 Maximum Sales Charge (Load) on Purchases (as a %
  of offering price)...............................   4.75%(/1/)     1%    none
 Maximum Deferred Sales
  Charge (Load) (CDSC) on Redemptions (as a % of
  original purchase price or current
  net asset value, whichever is less)..............    none(/1/)     1%      1%
<CAPTION>
 Annual Fund Operating Expenses for Fiscal 1999
 ----------------------------------------------
 <S>                                                 <C>         <C>     <C>
 (as a percentage of average net assets)
 Management Fees...................................    .50%        .50%    .50%
 Distribution and/or
  Service (12b-1) Fees.............................    .25%       1.00%   1.00%
 Other Expenses....................................    .32%        .32%    .32%
                                                      -----       -----   -----
 Total Annual Fund Operating Expenses..............   1.07%       1.82%   1.82%
                                                      =====       =====   =====
</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 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>
Class A   $579   $799   $1,037   $1,719
Class C    383    667    1,075    2,216
Class D    285    573      985    2,137
If you did not sell your shares at the end of each period, your expenses would
be:
<CAPTION>
         1 Year 3 Years 5 Years 10 Years
         ------ ------- ------- --------
<S>      <C>    <C>     <C>     <C>
Class A   $579   $799   $1,037   $1,719
Class C    283    667    1,075    2,216
Class D    185    573      985    2,137
</TABLE>
                                       29
<PAGE>

New York Fund

INVESTMENT OBJECTIVES
The New York Fund seeks to maximize income exempt from regular federal income
taxes and from New York personal income taxes to the extent consistent with
preservation of capital and with consideration given to opportunities for
capital gain.

PRINCIPAL INVESTMENT STRATEGIES

The New York Fund uses the following investment strategies to pursue its
investment objectives:

The New York Fund invests at least 80% of its net assets in New York municipal
securities rated investment-grade when purchased.

The Fund generally invests in long-term quality municipal bonds. The Fund
favors investing in revenue bonds, which pay interest and principal from
revenues derived from a particular facility or class of facilities. Revenue
bonds generally offer a higher yield than general obligation bonds, the payment
on which is secured by the general taxing power of the issuer.

In abnormal market conditions, the Fund may temporarily invest more than 20% of
its assets in taxable investment-grade fixed-income securities. Under these
circumstances, the Fund may not achieve its investment objective.

SPECIFIC RISKS

In addition to the principal risks stated on page 2 of this Prospectus, the New
York Fund is subject to the following risks:

 . Because the Fund invests primarily in the securities of New York issuers, its
  performance may be affected by local, state, and regional factors. These may
  include state or local legislation or policy changes, economic factors,
  natural disasters, and the possibility of credit problems.

 .  New York City and certain localities outside New York City have experienced
   financial problems in the past. Recurrence of these problems may affect the
   fiscal health of the State.

                                       30
<PAGE>

New York Fund

PAST PERFORMANCE

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 lower. The average annual total returns presented in the table 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. Past
performance does not indicate future results.

                          Class A Annual Total Returns
                                 Calendar Years

                                  [GRAPH]
                              90         4.18%
                              91         13.53%
                              92         9.31%
                              93         13.26%
                              94         -7.93%
                              95         19.31%
                              96         3.83%
                              97         10.04%
                              98         6.86%
                              99         -5.64%

Best calendar quarter return: 8.13% - quarter ended 3/31/95.

Worst calendar quarter return: -6.61% - quarter ended 3/31/94.

                          Average Annual Total Returns

                          Periods Ended 12/31/99
<TABLE>
<CAPTION>
                                          CLASS C    CLASS D
                                           SINCE      SINCE
                    ONE    FIVE    TEN   INCEPTION  INCEPTION
                    YEAR   YEARS  YEARS   5/27/99    2/1/94
                   ------  -----  -----  ---------  ---------
  <S>              <C>     <C>    <C>    <C>        <C>
  Class A          -10.08% 5.54%  5.84%       --        --
  Class C             n/a   n/a    n/a     -8.10%       --
  Class D           -7.50  5.57    n/a        --      2.88%
  Lehman Brothers
  Municipal Bond
  Index             -2.06  6.92   6.89     -2.59(1)   4.67(2)
</TABLE>

 The Lehman Brothers Municipal Bond
 Index is an unmanaged index that does
 not reflect any fees or sales charges,
 and does not reflect state-specific
 bond market performance.

 (1) From 5/31/99.

 (2) From 1/31/94.

FEES AND EXPENSES
<TABLE>
<CAPTION>
 Shareholder Fees                                    Class A     Class C Class D
 ----------------                                    -------     ------- -------
 <S>                                                 <C>         <C>     <C>
 Maximum Sales Charge (Load).......................   4.75%          2%      1%
 Maximum Sales Charge (Load) on Purchases (as a %
  of offering price)...............................   4.75%(/1/)     1%    none
 Maximum Deferred Sales
  Charge (Load) (CDSC) on Redemptions (as a % of
  original purchase price or current
  net asset value, whichever is less)..............    none(/1/)     1%      1%
<CAPTION>
 Annual Fund Operating
 Expenses for Fiscal 1999
 ------------------------
 <S>                                                 <C>         <C>     <C>
 (as a percentage of average net assets)
 Management Fees...................................    .50%        .50%    .50%
 Distribution and/or
  Service (12b-1) Fees.............................    .10%       1.00%   1.00%
 Other Expenses....................................    .21%        .21%    .21%
                                                      -----       -----   -----
 Total Annual Fund Operating Expenses..............    .81%       1.71%   1.71%
                                                      =====       =====   =====
</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 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>
Class A   $554   $721    $ 903   $1,429
Class C    372    633    1,019    2,099
Class D    274    539      928    2,019
If you did not sell your shares at the end of each period, your expenses would
be:
<CAPTION>
         1 Year 3 Years 5 Years 10 Years
         ------ ------- ------- --------
<S>      <C>    <C>     <C>     <C>
Class A   $554   $721    $ 903   $1,429
Class C    272    633    1,019    2,099
Class D    174    539      928    2,019
</TABLE>
                                       31
<PAGE>

North Carolina Fund

INVESTMENT OBJECTIVE
The North Carolina Fund seeks high income exempt from regular federal income
taxes and North Carolina personal income taxes consistent with preservation of
capital and with consideration given to capital gain.

PRINCIPAL INVESTMENT STRATEGIES

The North Carolina Fund uses the following investment strategies to pursue its
investment objective:

The North Carolina Fund invests at least 80% of its net assets in North
Carolina municipal securities rated investment- grade when purchased.

The Fund generally invests in long-term quality municipal bonds. The Fund
favors investing in revenue bonds, which pay interest and principal from
revenues derived from a particular facility or class of facilities. Revenue
bonds generally offer a higher yield than general obligation bonds, the
payment on which is secured by the general taxing power of the issuer.

In abnormal market conditions, the Fund may temporarily invest more than 20%
of its assets in taxable investment-grade fixed-income securities. Under these
circumstances, the Fund may not achieve its investment objective.

SPECIFIC RISKS

In addition to the principal risks stated on page 2 of this Prospectus, the
North Carolina Fund is subject to the following risks:

 . Because the Fund invests primarily in the securities of North Carolina
  issuers, its performance may be affected by local, state, and regional
  factors. These may include state or local legislation or policy changes,
  economic factors, natural disasters, and the possibility of credit problems.

 . North Carolina's total expenditures for each fiscal period covered by the
  budget must not exceed total receipts during the period and the surplus in
  the State Treasury at the beginning of the period. During the State's 1990-
  1991 fiscal year, it began facing a substantial budget shortfall resulting
  from the failure of revenues received by the State to meet projected levels.
  While the State was successful in dealing with this matter, pressure on
  state revenues may be ongoing.

                                      32
<PAGE>

North Carolina Fund

PAST PERFORMANCE

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 lower. The average annual total returns presented in the table 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. Past
performance does not indicate future results.

                          Class A Annual Total Returns
                                 Calendar Years

                                 [GRAPH]
                              90          2.80%
                              91         10.63%
                              92          8.15%
                              93         12.98%
                              94         -7.35%
                              95         19.56%
                              96          2.71%
                              97          8.75%
                              98          5.81%
                              99         -5.02%

Best calendar quarter return: 8.72% - quarter ended 3/31/95.

Worst calendar quarter return: -6.73% - quarter ended 3/31/94.

                          Average Annual Total Returns

                          Periods Ended 12/31/99
<TABLE>
<CAPTION>
                                  CLASS A    CLASS C    CLASS D
                                   SINCE      SINCE      SINCE
                    ONE   FIVE   INCEPTION  INCEPTION  INCEPTION
                   YEAR   YEARS   8/27/90    5/27/99    2/1/94
                   -----  -----  ---------  ---------  ---------
  <S>              <C>    <C>    <C>        <C>        <C>
  Class A          -9.48% 5.05%    5.47%         --        --
  Class C            n/a   n/a      n/a       -7.41%       --
  Class D          -6.62  5.29      n/a          --      2.75%
  Lehman Brothers
   Municipal Bond
    Index          -2.06  6.92     7.09(1)    -2.59(2)   4.67(3)
</TABLE>

 The Lehman Brothers Municipal Bond
 Index is an unmanaged index that does
 not reflect any fees or sales charges,
 and does not reflect state-specific
 bond market performance.

 (1) From 8/31/90.

 (2) From 5/31/99.

 (3) From 1/31/94.

FEES AND EXPENSES
<TABLE>
<CAPTION>
 Shareholder Fees                                    Class A     Class C Class D
 ----------------                                    -------     ------- -------
 <S>                                                 <C>         <C>     <C>
 Maximum Sales Charge (Load).......................   4.75%          2%      1%
 Maximum Sales Charge (Load) on Purchases (as a %
  of offering price)...............................   4.75%(/1/)     1%    none
 Maximum Deferred Sales
  Charge (Load) (CDSC) on Redemptions (as a % of
  original purchase price or current
  net asset value, whichever is less)..............    none(/1/)     1%      1%
<CAPTION>
 Annual Fund Operating
 Expenses for Fiscal 1999
 ------------------------
 <S>                                                 <C>         <C>     <C>
 (as a percentage of average net assets)
 Management Fees...................................    .50%        .50%    .50%
 Distribution and/or
  Service (12b-1) Fees.............................    .25%       1.00%   1.00%
 Other Expenses....................................    .31%        .31%    .31%
                                                      -----       -----   -----
 Total Annual Fund Operating Expenses..............   1.06%       1.81%   1.81%
                                                      =====       =====   =====
</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 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>
Class A   $578   $796   $1,032   $1,708
Class C    382    664    1,070    2,205
Class D    284    569      980    2,127
If you did not sell your shares at the end of each period, your expenses would
be:
<CAPTION>
         1 Year 3 Years 5 Years 10 Years
         ------ ------- ------- --------
<S>      <C>    <C>     <C>     <C>
Class A   $578   $796   $1,032   $1,708
Class C    282    664    1,070    2,205
Class D    184    569      980    2,127
</TABLE>
                                       33
<PAGE>

Ohio Fund

INVESTMENT OBJECTIVES
The Ohio Fund seeks to maximize income exempt from regular federal income
taxes and from Ohio personal income taxes to the extent consistent with
preservation of capital and with consideration given to opportunities for
capital gain.

PRINCIPAL INVESTMENT STRATEGIES

The Ohio Fund uses the following investment strategies to pursue its
investment objectives:

The Ohio Fund invests at least 80% of its net assets in Ohio municipal
securities rated investment-grade when purchased.

The Fund generally invests in long-term quality municipal bonds. The Fund
favors investing in revenue bonds, which pay interest and principal from
revenues derived from a particular facility or class of facilities. Revenue
bonds generally offer a higher yield than general obligation bonds, the
payment on which is secured by the general taxing power of the issuer.

In abnormal market conditions, the Fund may temporarily invest more than 20%
of its assets in taxable investment-grade fixed-income securities. Under these
circumstances, the Fund may not achieve its investment objective.

SPECIFIC RISKS

In addition to the principal risks stated on page 2 of this Prospectus, the
Ohio Fund is subject to the following risks:

 . Because the Fund invests primarily in the securities of Ohio issuers, its
  performance may be affected by local, state, and regional factors. These may
  include state or local legislation or policy changes, economic factors,
  natural disasters, and the possibility of credit problems.

 . Ohio's economy relies in part on durable goods manufacturing largely
  concentrated in motor vehicles and equipment, steel, rubber products and
  household appliances. As a result, general economic activity, as in many
  other industrially developed states, tends to be more cyclical than in other
  states and in the nation as a whole.

                                      34
<PAGE>

Ohio Fund

PAST PERFORMANCE

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 lower. The average annual total returns presented in the table 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. Past
performance does not indicate future results.

                          Class A Annual Total Returns
                                 Calendar Years

                                 [GRAPH]
                              90          6.58%
                              91         11.31%
                              92          8.43%
                              93         11.64%
                              94         -4.91%
                              95         15.23%
                              96          3.77%
                              97          8.39%
                              98          5.89%
                              99         -4.65%

Best calendar quarter return: 6.47% - quarter ended 3/31/95.

Worst class quarter return; -4.89% - quarter ended. 3/31/94

                          Average Annual Total Returns

                          Periods Ended 12/31/99
<TABLE>
<CAPTION>
                                         CLASS C    CLASS D
                                          SINCE      SINCE
                    ONE   FIVE    TEN   INCEPTION  INCEPTION
                   YEAR   YEARS  YEARS   5/27/99    2/1/94
                   -----  -----  -----  ---------  ---------
  <S>              <C>    <C>    <C>    <C>        <C>
  Class A          -9.22% 4.50%  5.47%       --        --
  Class C            n/a   n/a    n/a     -7.38%       --
  Class D          -6.37  4.60    n/a        --      2.67%
  Lehman Brothers
   Municipal Bond
   Index           -2.06  6.92   6.89     -2.59(1)   4.67(2)
</TABLE>

 The Lehman Brothers Municipal Bond
 Index is an unmanaged index that does
 not reflect any fees or sales charges,
 and does not reflect state-specific
 bond market performance.

 (1) From 5/31/99.

 (2) From 1/31/94.

FEES AND EXPENSES

<TABLE>
<CAPTION>
 Shareholder Fees                                    Class A     Class C Class D
 ----------------                                    -------     ------- -------
 <S>                                                 <C>         <C>     <C>
 Maximum Sales Charge (Load).......................   4.75%          2%      1%
 Maximum Sales Charge (Load) on Purchases (as a %
  of offering price)...............................   4.75%(/1/)     1%    none
 Maximum Deferred Sales
  Charge (Load) (CDSC) on Redemptions (as a % of
  original purchase price or current
  net asset value, whichever is less)..............    none(/1/)     1%      1%
<CAPTION>
 Annual Fund Operating Expenses for Fiscal 1999
 ----------------------------------------------
 <S>                                                 <C>         <C>     <C>
 (as a percentage of average net assets)
 Management Fees...................................    .50%        .50%    .50%
 Distribution and/or Service (12b-1) Fees..........    .10%       1.00%   1.00%
 Other Expenses....................................    .21%        .21%    .21%
                                                      -----       -----   -----
 Total Annual Fund Operating Expenses..............    .81%       1.71%   1.71%
                                                      =====       =====   =====
</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 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>
Class A   $554   $721   $  903   $1,429
Class C    372    633    1,019    2,099
Class D    274    539      928    2,019
If you did not sell your shares at the end of each period, your expenses would
be:
<CAPTION>
         1 Year 3 Years 5 Years 10 Years
         ------ ------- ------- --------
<S>      <C>    <C>     <C>     <C>
Class A   $554   $721   $  903   $1,429
Class C    272    633    1,019    2,099
Class D    174    539      928    2,019
</TABLE>
                                       35
<PAGE>

Oregon Fund

INVESTMENT OBJECTIVES
The Oregon Fund seeks to maximize income exempt from regular federal income
taxes and from Oregon personal income taxes to the extent consistent with
preservation of capital and with consideration given to opportunities for
capital gain.

PRINCIPAL INVESTMENT STRATEGIES

The Oregon Fund uses the following strategies to pursue its objectives:

The Oregon Fund invests at least 80% of its net assets in Oregon municipal
securities rated investment-grade when purchased.

The Fund generally invests in long-term quality municipal bonds. The Fund
favors investing in revenue bonds, which pay interest and principal from
revenues derived from a particular facility or class of facilities. Revenue
bonds generally offer a higher yield than general obligation bonds, the payment
on which is secured by the general taxing power of the issuer.

In abnormal market conditions, the Fund may temporarily invest more than 20% of
its assets in taxable investment-grade fixed-income securities. Under these
circumstances, the Fund may not achieve its investment objective.

SPECIFIC RISKS

In addition to the principal risks stated on page 2 of this Prospectus, the
Oregon Fund is subject to the following risks:

 . Because the Fund invests primarily in the securities of Oregon issuers, its
  performance may be affected by local, state, and regional factors. These may
  include state or local legislation or policy changes, economic factors,
  natural disasters, and the possibility of credit problems.

 . Oregon's economy continues to be affected by the technology manufacturing,
  forest products, and agricultural industries, which have all declined in
  recent years due to declining exports to Asia.

                                       36
<PAGE>

Oregon Fund

PAST PERFORMANCE

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 lower. The average annual total returns presented in the table 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. Past
performance does not indicate future results.

                          Class A Annual Total Returns
                                 Calendar Years

                                  [GRAPH]
                              90          6.50%
                              91         10.82%
                              92          7.78%
                              93         10.90%
                              94         -4.56%
                              95         14.55%
                              96          3.81%
                              97          9.05%
                              98          6.09%
                              99         -3.95%

Best calendar quarter return: 6.15% - quarter ended 3/31/95.

Worst calendar quarter return: -4.48% - quarter ended 3/31/94.

                          Average Annual Total Returns

                          Periods Ended 12/31/99
<TABLE>
<CAPTION>
                                         CLASS C    CLASS D
                                          SINCE      SINCE
                    ONE   FIVE    TEN   INCEPTION  INCEPTION
                   YEAR   YEARS  YEARS   5/27/99    2/1/94
                   -----  -----  -----  ---------  ---------
  <S>              <C>    <C>    <C>    <C>        <C>
  Class A          -8.55% 4.71%  5.41%       --        --
  Class C            n/a   n/a    n/a     -6.97%       --
  Class D          -5.86  4.74    n/a        --      2.87%
  Lehman Brothers
  Municipal Bond
  Index            -2.06  6.92   6.89     -2.59(1)   4.67(2)
</TABLE>

 The Lehman Brothers Municipal Bond
 Index is an unmanaged index that does
 not reflect any fees or sales charges,
 and does not reflect state-specific
 bond market performance.

 (1) From 5/31/99.

 (2) From 1/31/94.

FEES AND EXPENSES

<TABLE>
<CAPTION>
 Shareholder Fees                                    Class A     Class C Class D
 ----------------                                    -------     ------- -------
 <S>                                                 <C>         <C>     <C>
 Maximum Sales Charge (Load).......................   4.75%          2%      1%
 Maximum Sales Charge (Load) on Purchases (as a %
  of offering price)...............................   4.75%(/1/)     1%    none
 Maximum Deferred Sales
  Charge (Load) (CDSC) on Redemptions (as a % of
  original purchase price or current
  net asset value, whichever is less)..............    none(/1/)     1%      1%
<CAPTION>
 Annual Fund Operating Expenses for Fiscal 1999
 ----------------------------------------------
 <S>                                                 <C>         <C>     <C>
 (as a percentage of average net assets)
 Management Fees...................................    .50%        .50%    .50%
 Distribution and/or Service (12b-1) Fees..........    .10%       1.00%   1.00%
 Other Expenses....................................    .26%        .26%    .26%
                                                      -----       -----   -----
 Total Annual Fund Operating Expenses..............    .86%       1.76%   1.76%
                                                      =====       =====   =====
</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 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>
Class A   $559   $736   $  929   $1,485
Class C    377    649    1,045    2,152
Class D    279    554      954    2,073
If you did not sell your shares at the end of each period, your expenses would
be:
<CAPTION>
         1 Year 3 Years 5 Years 10 Years
         ------ ------- ------- --------
<S>      <C>    <C>     <C>     <C>
Class A   $559   $736   $  929   $1,485
Class C    277    649    1,045    2,152
Class D    179    554      954    2,073
</TABLE>
                                       37
<PAGE>

Pennsylvania Fund

INVESTMENT OBJECTIVE
The Pennsylvania Fund seeks high income exempt from regular federal income tax
and Pennsylvania income taxes consistent with preservation of capital.

PRINCIPAL INVESTMENT STRATEGIES

The Pennsylvania Fund uses the following investment strategies to pursue its
investment objective:

The Pennsylvania Fund invests at least 80% of its net assets in Pennsylvania
municipal securities rated investment-grade when purchased. The Fund will
ordinarily hold securities with maturities in excess of one year.

The Fund generally invests in long-term quality municipal bonds. The Fund
favors investing in revenue bonds, which pay interest and principal from
revenues derived from a particular facility or class of facilities. Revenue
bonds generally offer a higher yield than general obligation bonds, the payment
on which is secured by the general taxing power of the issuer.

In abnormal market conditions, the Fund may temporarily invest more than 20% of
its assets in taxable investment-grade fixed-income securities. Under these
circumstances, the Fund may not achieve its investment objective.

SPECIFIC RISKS

In addition to the principal risks stated on page 2 of this Prospectus, the
Pennsylvania Fund is subject to the following risks:

 . Because the Fund invests primarily in the securities of Pennsylvania issuers,
  its performance may be affected by local, state, and regional factors. These
  may include state or local legislation or policy changes, economic factors,
  natural disasters, and the possibility of credit problems.

 . Pennsylvania and various of its political subdivisions, including the City of
  Philadelphia and the City of Scranton, have in the past, encountered
  financial difficulties due to slowdowns in the pace of economic activity and
  other factors.

                                       38
<PAGE>

Pennsylvania Fund

PAST PERFORMANCE

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 lower. The average annual total returns presented in the table 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. Past
performance does not indicate future results.

                          Class A Annual Total Returns
                                 Calendar Years

                                  [GRAPH]
                              90          5.35%
                              91         11.29%
                              92          9.32%
                              93         12.91%
                              94         -7.03%
                              95         18.01%
                              96          3.44%
                              97          8.70%
                              98          6.14%
                              99         -5.19%

Best calendar quarter return: 7.59% - quarter ended 3/31/95.

Worst calendar quarter return: -6.40% - quarter ended 3/31/94.

                          Average Annual Total Returns

                          Periods Ended 12/31/99
<TABLE>
<CAPTION>
                                         CLASS C    CLASS D
                                          SINCE      SINCE
                    ONE   FIVE    TEN   INCEPTION  INCEPTION
                   YEAR   YEARS  YEARS   5/27/99    2/1/94
                   -----  -----  -----  ---------  ---------
  <S>              <C>    <C>    <C>    <C>        <C>
  Class A          -9.70% 4.92%  5.52%       --        --
  Class C            n/a   n/a    n/a     -7.77%       --
  Class D          -6.82  5.11    n/a        --      2.65%
  Lehman Brothers
  Municipal Bond
  Index            -2.06  6.92   6.89     -2.59(1)   4.67(2)
</TABLE>

 The Lehman Brothers Municipal Bond
 Index is an unmanaged index that does
 not reflect any fees or sales charges,
 and does not reflect state-specific
 bond market performance.

 (1) From 5/31/99.

 (2) From 1/31/94.


FEES AND EXPENSES
<TABLE>
<CAPTION>
 Shareholder Fees                                   Class A       Class C Class D
 ----------------                                  ---------      ------- -------
 <S>                                               <C>            <C>     <C>
 Maximum Sales Charge (Load)....................       4.75%          2%      1%
 Maximum Sales Charge (Load) on Purchases (as a
  % of offering price)..........................       4.75%(/1/)     1%    none
 Maximum Deferred Sales
  Charge (Load) (CDSC) on Redemptions (as a % of
  original purchase price or current net asset
  value, whichever is less).....................   none(/1/)          1%      1%
<CAPTION>
 Annual Fund Operating
 Expenses for Fiscal 1999
 ------------------------
 <S>                                               <C>            <C>     <C>
 (as a percentage of average net assets)
 Management Fees................................        .50%        .50%    .50%
 Distribution and/or
  Service (12b-1) Fees..........................        .25%       1.00%   1.00%
 Other Expenses.................................        .46%        .46%    .46%
                                                   ---------       -----   -----
 Total Annual Fund Operating Expenses...........       1.21%       1.96%   1.96%
                                                   =========       =====   =====
</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 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>
Class A   $592   $841   $1,108   $1,871
Class C    397    709    1,147    2,362
Class D    299    615    1,057    2,285
If you did not sell your shares at the end of each period, your expenses would
be:
<CAPTION>
         1 Year 3 Years 5 Years 10 Years
         ------ ------- ------- --------
<S>      <C>    <C>     <C>     <C>
Class A   $592   $841   $1,108   $1,871
Class C    297    709    1,147    2,362
Class D    199    615    1,057    2,285
</TABLE>
                                       39
<PAGE>

South Carolina Fund

INVESTMENT OBJECTIVES
The South Carolina Fund seeks to maximize income exempt from regular federal
income taxes and from South Carolina personal income taxes to the extent
consistent with preservation of capital and with consideration given to
opportunities for capital gain.

PRINCIPAL INVESTMENT STRATEGIES

The South Carolina Fund uses the following investment strategies to pursue its
investment objectives:

The South Carolina Fund invests at least 80% of its net assets in South
Carolina municipal securities rated investment- grade when purchased.

The Fund generally invests in long-term quality municipal bonds. The Fund
favors investing in revenue bonds, which pay interest and principal from
revenues derived from a particular facility or class of facilities. Revenue
bonds generally offer a higher yield than general obligation bonds, the payment
on which is secured by the general taxing power of the issuer.

In abnormal market conditions, the Fund may temporarily invest more than 20% of
its assets in taxable investment-grade fixed-income securities. Under these
circumstances, the Fund may not achieve its investment objective.

SPECIFIC RISKS

In addition to the principal risks stated on page 2 of this Prospectus, the
South Carolina Fund is subject to the following risks:

 . Because the Fund invests primarily in the securities of South Carolina
  issuers, its performance may be affected by local, state, and regional
  factors. These may include state or local legislation or policy changes,
  economic factors, natural disasters, and the possibility of credit problems.

 . While South Carolina has not defaulted on its bonded debt since 1879, the
 State did experience certain budgeting difficulties in recent years through
 June 30, 1993. These difficulties have not to date impacted the State's
 ability to pay its indebtedness, but did result in S&P lowering its rating on
 South Carolina general obligation bonds in 1993. The rating was restored to
 AAA in 1996.

                                       40
<PAGE>

South Carolina Fund

PAST PERFORMANCE

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 lower. The average annual total returns presented in the table 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. Past
performance does not indicate future results.

                          Class A Annual Total Returns
                                 Calendar Years

                                  [GRAPH]
                              90          6.01%
                              91         11.52%
                              92          8.39%
                              93         11.71%
                              94         -6.70%
                              95         17.65%
                              96          3.93%
                              97          8.72%
                              98          5.73%
                              99         -5.59%

Best calendar quarter return: 7.23% - quarter ended 3/31/95.

Worst calendar quarter return: -6.18% - quarter ended 3/31/94.


                          Average Annual Total Returns

                          Periods Ended 12/31/99
<TABLE>
<CAPTION>
                                          CLASS C    CLASS D
                                           SINCE      SINCE
                    ONE    FIVE    TEN   INCEPTION  INCEPTION
                    YEAR   YEARS  YEARS   5/27/99    2/1/94
                   ------  -----  -----  ---------  ---------
  <S>              <C>     <C>    <C>    <C>        <C>
  Class A          -10.07% 4.79%  5.37%       --        --
  Class C             n/a   n/a    n/a     -8.06%       --
  Class D           -7.22  4.89    n/a        --      2.55%
  Lehman Brothers
  Municipal Bond
  Index             -2.06  6.92   6.89     -2.59(1)   4.67(2)
</TABLE>

 The Lehman Brothers Municipal Bond
 Index is an unmanaged index that does
 not reflect any fees or sales charges,
 and does not reflect state-specific
 bond market performance.

 (1) From 5/31/99.

 (2) From 1/31/94.

FEES AND EXPENSES

<TABLE>
<CAPTION>
Shareholder Fees                                  Class A       Class C Class D
- ----------------                                 ---------      ------- -------
<S>                                              <C>            <C>     <C>
Maximum Sales Charge (Load).....................     4.75%          2%      1%
 Maximum Sales Charge (Load) on Purchases (as a
 % of offering price)...........................     4.75%(/1/)     1%    none
 Maximum Deferred Sales
 Charge (Load) (CDSC) on Redemptions (as a % of
 original purchase price or current
 net asset value, whichever is less)............ none(/1/)          1%      1%
<CAPTION>
Annual Fund Operating
Expenses for Fiscal 1999
- ------------------------
<S>                                              <C>            <C>     <C>
(as a percentage of average net assets)
Management Fees.................................      .50%        .50%    .50%
Distribution and/or
 Service (12b-1) Fees...........................      .10%       1.00%   1.00%
Other Expenses..................................      .23%        .23%    .23%
                                                 ---------       -----   -----
Total Annual Fund Operating Expenses............      .83%       1.73%   1.73%
                                                 =========       =====   =====
</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 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>
Class A   $556   $727   $  914   $1,452
Class C    374    639    1,029    2,121
Class D    276    545      939    2,041
If you did not sell your shares at the end of each period, your expenses would
be:
<CAPTION>
         1 Year 3 Years 5 Years 10 Years
         ------ ------- ------- --------
<S>      <C>    <C>     <C>     <C>
Class A   $556   $727   $  914   $1,452
Class C    274    639    1,029    2,121
Class D    176    545      939    2,041
</TABLE>
                                       41
<PAGE>

Management of the Funds

A Board of Directors or Board of Trustees (as applicable) provides broad
supervision over the affairs of each Fund.

J. & W. Seligman & Co. Incorporated (Seligman), 100 Park Avenue, New York, New
York 10017, is the manager of each Fund. Seligman manages the investment of
each Fund's assets, including making purchases and sales of portfolio
securities consistent with each Fund's investment objective and strategies, and
administers each Fund's business and other affairs.

Established in 1864, Seligman currently serves as manager to 20 US registered
investment companies, which offer more than 50 investment portfolios with
approximately $27.4 billion in assets as of December 31, 1999. Seligman also
provides investment management or advice to institutional or other accounts
having an aggregate value at December 31, 1999, of approximately $11.3 billion.

Each Fund pays Seligman a fee for its management services. The fee for each
Fund is equal to an annual rate of .50% of the Fund's average daily net assets.

   Affiliates of Seligman:

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

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

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

  Year 2000

  January 1, 2000 has come and gone. Participants in the financial services
  industry, including Seligman and SDC, have substantially completed programs
  designed to ensure that their computer systems properly process
  and calculate date-related information in the Year 2000 and beyond. To
  date, the Funds have not experienced any Year 2000-related problems, and
  the Funds believe that the systems on which they rely will continue to
  function properly, but this is not guaranteed. The Funds, like
  other investment companies, financial and business organizations and
  individuals around the world, could be adversely affected if the computer
  systems on which they rely (including the systems of their third-party
  service providers) fail to interpret data properly because of Year 2000
  issues, including any impact on the issuers of securities in which the
  Funds invest. A Year 2000 problem yet to be identified or anticipated by
  those issuers, or identified but not adequately addressed, could adversely
  impact a Fund's performance.




  Portfolio Management

  The Funds are managed by the Seligman Municipals Team, headed by Mr. Thomas
  G. Moles. Mr. Moles, a Managing Director of Seligman, has been Vice
  President and Portfolio Manager of the Funds since their inception. He is
  also President and Portfolio Manager of Seligman Quality Municipal Fund,
  Inc. and Seligman Select Municipal Fund, Inc., two closed-end investment
  companies.

                                       42
<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 its
ongoing 12b-1 fees may differ from other Classes. 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   Regular Dealer
                                  Sales Charge          as a %         Discount
   Amount                            as a %             of Net        as a % of
   of your Investment        of Offering Price(/1/) Amount Invested Offering Price
   ------------------        ---------------------- --------------- --------------
   <S>                       <C>                    <C>             <C>
   Less than $ 50,000                 4.75%              4.99%           4.25%
   $50,000 - $ 99,999                 4.00               4.17            3.50
   $100,000 - $249,999                3.50               3.63            3.00
   $250,000 - $499,999                2.50               2.56            2.25
   $500,000 - $999,999                2.00               2.04            1.75
   $1,000,000 and over(/2/)           0.00               0.00            0.00
</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.

  . Certain employer-sponsored defined contribution-type plans can purchase
    shares with no initial sales charge.

Class C
  . Initial sales charge on Fund purchases, as set forth below:
<TABLE>
<CAPTION>
                                                       Sales Charge   Regular Dealer
                                    Sales Charge          as a %         Discount
                                       as a %             of Net        as a % of
   Amount of your Investment   of Offering Price(/1/) Amount Invested Offering Price
   -------------------------   ---------------------- --------------- --------------
   <S>                         <C>                    <C>             <C>
   Less than $100,000                   1.00%              1.01%           1.00%
   $100,000 - $249,999                  0.50               0.50            0.50
   $250,000 -
     $1,000,000(/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/Your)purchase of Class C shares must be for less than $1,000,000
      because if you invest $1,000,000 or more you will pay less in fees and
      charges if you buy Class A shares.

  . A 1% CDSC on shares sold within eighteen months 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 sales charge on reinvested dividends or capital gain distributions.

  . No CDSC when you sell shares purchased with reinvested dividends or
    capital gain distributions.

                                       43
<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 CDSC when you sell shares purchased with reinvested dividends or
    capital gain distributions.

  * Class D shares are not available to all investors. You may purchase
    Class D shares only if (1) you already own Class D shares of the Fund
    or another Seligman mutual fund, (2) if your financial advisor of
    record maintains an omnibus account at SDC, or (3) pursuant to a 401(k)
    or other retirement plan program for which Class D shares are already
    available or for which the sponsor requests Class D shares because the
    sales charge structure of Class D shares is comparable to the sales
    charge structure of the other funds offered under the program.

Each Fund has adopted a plan 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/or for providing services to
shareholders.

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 Board of Directors or Trustees, as applicable, believes that no conflict of
interest currently exists between a Fund's Class A, Class C and Class D shares.
On an ongoing basis, the Directors or Trustees, in the exercise of their
fiduciary duties under the Investment Company Act of 1940 and applicable state
law, will seek to ensure that no such conflict arises.

How CDSCs Are Calculated

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

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

                                       44
<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 included in 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
 NAV:                  broker/dealer or financial advisor after the close of
 Computed              regular trading on the NYSE, or is accepted by Seligman
 separately for        Advisors after the close of business, the order will be
 each Class of a       executed at the Class's NAV calculated as of the close
 Fund by dividing      of regular trading on the next NYSE trading day. When
 that Class's          you sell shares, you receive the Class's per share NAV,
 share of the          less any applicable CDSC.
 value of the net
 assets of the         The NAV of a Fund's shares is determined each day,
 Fund (i.e., its       Monday through Friday, on days that the NYSE is open
 assets less           for trading. Because of their higher 12b-1 fees, the
 liabilities) by       NAV of Class C shares and Class D shares will generally
 the total number      be lower than the NAV of Class A shares of a Fund.
 of outstanding
 shares of the
 Class.

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

Opening Your Account

The Funds' shares are sold through authorized broker/dealers or financial
advisors who have sales agreements with Seligman Advisors. There are several
programs under which you may be eligible for reduced sales charges or lower
minimum investments. Ask your financial advisor if any of these programs apply
to you. Class D shares are not available to all investors. For more
information, see "Deciding Which Class of Shares to Buy-Class D."

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

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

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

You will be sent a statement confirming your purchase, and any subsequent
transactions in your account. You will also be sent quarterly and annual
statements detailing your transactions in the Fund and the other Seligman funds
you own under the same account number. 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 request. 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.

                                       45
<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. Subsequent purchases must be for
$100 or more.

Shares may be purchased through your authorized broker/dealer or 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 02940-9766

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 any 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, or Class C
shares, you may pay an initial sales charge to buy shares.

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

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

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

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

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

How to Exchange Shares Among the Seligman Mutual Funds

You may sell Fund shares to buy
shares of the same Class of another
Seligman mutual fund, or you may
sell shares of another Seligman
mutual fund to buy 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 or Class C shares of
Seligman Cash Management Fund to buy
shares of the same class of a Fund
or another Seligman mutual fund.

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

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

Before making an exchange, contact your financial advisor or SDC to obtain the
applicable fund prospectus(es). You should read and understand a fund's
prospectus before investing. Some funds may not offer all classes of shares.

                                      46
<PAGE>

How to Sell Shares

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

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

You may sell shares to the Fund through a broker/dealer or your financial
advisor. The Fund does not charge any fees or expenses, other than any
applicable CDSC, for this transaction; however, the dealer or financial
advisor may charge a service fee. Contact your financial advisor for more
information.

You may always send a written request to sell Fund shares; however, it may
take longer to get your money.

As an additional measure to protect you and the Fund, SDC may confirm written
redemption requests that are (1) for $25,000 or more, or (2) directed to be
paid to an alternate payee or sent to an address other than the address of
record, with you or your financial advisor by telephone before sending your
money. This will not affect the date on which your redemption request is
actually processed.

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 the account owner; or

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


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


You may need to provide additional documents to sell 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 services to sell shares:

Systematic Withdrawal Plan. If you have at least $5,000 in a Fund, you may
withdraw (sell) a fixed dollar 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 C shares
and Class D shares and reinvest your dividends and capital gain distributions,
you may annually withdraw 10%, respectively, of the value of your Fund account
(at the time of election) without a CDSC.

Check Redemption Service. If you have at least $25,000 in a Fund, you may ask
SDC to provide checks which may be drawn against your account in amounts of
$500 or more. You may elect this service on your initial application or
contact SDC for the appropriate forms to establish this service. If you own
Class A shares that were bought at NAV because of the size of your purchase,
or if you own Class B shares, check redemptions may be subject to a CDSC. If
you own Class D or Class C shares, you may use this service only with respect
to shares that you have held for at least one year or eighteen months,
respectively.


                                      47
<PAGE>

Important Policies That May Affect Your Account


To protect you and other shareholders, each 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 a 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 representative or 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 (which may
require a signature guarantee).

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 elec-
   tion 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 or financial advisor 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 shares. In this case, you may need to
write, and it may take longer for your request to be processed. A Fund's NAV
may fluctuate during this time.

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

Reinstatement Privilege

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

                                       48
<PAGE>

Dividends and Capital Gain Distributions

Each Fund generally declares any dividends from net investment income daily and
pays dividends on the 17th of each month. If the 17th day of a month falls on a
weekend or on a NYSE holiday, the dividend will be distributed on the previous
business day. The Funds distribute net capital gains realized on investments
annually. It is expected that the Funds' distributions will be primarily income
dividends.


                       You may elect to:


                       (1) reinvest both dividends and capital gain
 Dividend:                 distributions;

                       (2) receive dividends in cash and reinvest capital gain
 A payment by a            distributions; or
 mutual fund,
 usually derived
 from the fund's
 net investment
 income
 (dividends and
 interest earned
 on portfolio
 securities less
 expenses).

                       (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.

                       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.


 Capital Gain          Cash dividends or capital gain distributions will be
 Distribution:         sent by check to your address of record or, if you have
 A payment to          current ACH bank information on file, directly
 mutual fund           deposited into your predesignated bank account within
 shareholders          3-4 business days from the payable date.
 which represents
 profits realized
 on the sale of
 securities in a
 Fund's
 portfolio.

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

                       Dividends on Class C shares 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,
                       if any, will be paid in the same amount for each Class.

 Ex-dividend
 Date:
 The day on which
 any declared
 distributions
 (dividends or
 capital gains)
 are deducted
 from the Fund's
 assets before it
 calculates
 its NAV.


Taxes

The Funds intend to pay dividends that are exempt from regular income tax. A
Fund may invest a portion of its assets in securities that generate income that
is not exempt from federal or state income tax. Income exempt from federal tax
may be subject to state and local tax. If you would like more specific
information on the possible tax consequences of investing in a particular Fund,
you should read that Fund's Statement of Additional Information.

Dividends paid by the Funds are taxable to you as ordinary income. Any capital
gains distributed by a Fund may be taxable, whether you take them in cash or
reinvest them to buy additional Fund shares. Capital gains may be taxed at
different rates depending on the length of time a 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.


                                       49
<PAGE>

Financial Highlights

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

NATIONAL FUND

<TABLE>
<CAPTION>
                                            CLASS A                              CLASS C
                           -------------------------------------------------   -----------
                                   Year ended September 30,                    5/27/99(**)
                           -------------------------------------------------       to
                            1999       1998      1997      1996       1995       9/30/99
                           -------   --------   -------   -------   --------   -----------
 <S>                       <C>       <C>        <C>       <C>       <C>        <C>
 Per Share Data:*
 Net asset value,
  beginning
  of period..............    $8.32      $8.01     $7.70     $7.58      $7.18      $8.08
                           -------   --------   -------   -------   --------     ------
 Income from investment
  operations:
 Net investment income...     0.39       0.39      0.39      0.40       0.40       0.11
 Net gains or losses on
  securities (both
  realized and
  unrealized)............    (0.64)      0.31      0.31      0.12       0.40      (0.40)
                           -------   --------   -------   -------   --------     ------
 Total from investment
  operations.............    (0.25)      0.70      0.70      0.52       0.80      (0.29)
                           -------   --------   -------   -------   --------     ------
 Less distributions:
 Dividends from net
  investment income......    (0.39)     (0.39)    (0.39)    (0.40)     (0.40)     (0.11)
 Distributions from
  capital gains..........       --         --        --        --         --         --
                           -------   --------   -------   -------   --------     ------
 Total distributions.....    (0.39)     (0.39)    (0.39)    (0.40)     (0.40)     (0.11)
                           -------   --------   -------   -------   --------     ------
 Net asset value, end of
  period.................    $7.68      $8.32     $8.01     $7.70      $7.58      $7.68
                           =======   ========   =======   =======   ========     ======
 Total Return:               (3.11)%     9.00 %    9.40 %    6.97 %    11.48 %    (3.38)%
 Ratios/Supplemental
  Data:
 Net assets, end of
  period
  (in thousands).........  $90,296   $101,909   $97,481   $98,767   $104,184       $115
 Ratio of expenses to
  average
  net assets.............    0.83%      0.80%     0.84%     0.80%      0.86%      1.74%+
 Ratio of net income to
  average
  net assets.............    4.83%      4.82%     5.05%     5.19%      5.46%      4.10%+
 Portfolio turnover
  rate...................   13.37%     18.00%    20.63%    33.99%     24.91%     13.37%++
<CAPTION>
                                        CLASS D
                           --------------------------------------------
                                Year ended September 30,
                           --------------------------------------------
                            1999     1998     1997     1996     1995
                           -------- -------- -------- -------- --------
 <S>                       <C>      <C>      <C>      <C>      <C>
 Per Share Data:*
 Net asset value,
  beginning
  of period..............   $8.31    $8.02    $7.70    $7.57    $7.18
                           -------- -------- -------- -------- --------
 Income from investment
  operations:
 Net investment income...    0.32     0.32     0.32     0.33     0.32
 Net gains or losses on
  securities (both
  realized and
  unrealized)............   (0.63)    0.29     0.32     0.13     0.39
                           -------- -------- -------- -------- --------
 Total from investment
  operations.............   (0.31)    0.61     0.64     0.46     0.71
                           -------- -------- -------- -------- --------
 Less distributions:
 Dividends from net
  investment income......   (0.32)   (0.32)   (0.32)   (0.33)   (0.32)
 Distributions from
  capital gains..........      --       --       --       --       --
                           -------- -------- -------- -------- --------
 Total distributions.....   (0.32)   (0.32)   (0.32)   (0.33)   (0.32)
                           -------- -------- -------- -------- --------
 Net asset value, end of
  period.................   $7.68    $8.31    $8.02    $7.70    $7.57
                           ======== ======== ======== ======== ========
 Total Return:              (3.85)%   7.76 %   8.56 %   6.13 %  10.17 %
 Ratios/Supplemental
  Data:
 Net assets, end of
  period
  (in thousands).........  $8,079   $7,392   $2,279   $4,826   $1,215
 Ratio of expenses to
  average
  net assets.............   1.73%    1.71%    1.75%    1.67%    1.95%
 Ratio of net income to
  average
  net assets.............   3.93%    3.91%    4.15%    4.27%    4.40%
 Portfolio turnover
  rate...................  13.37%   18.00%   20.63%   33.99%   24.91%
</TABLE>
 -------------

See footnotes on page 59.
                                       50
<PAGE>

CALIFORNIA HIGH-YIELD FUND

<TABLE>
<CAPTION>
                                           CLASS A                         CLASS C                CLASS D
                           --------------------------------------------  ----------- ---------------------------------------
                                  Year ended September 30,               5/27/99(**)      Year ended September 30,
                           --------------------------------------------      to      ---------------------------------------
                            1999      1998     1997     1996     1995      9/30/99    1999     1998    1997    1996    1995
                           -------   -------  -------  -------  -------  ----------- ------   ------  ------  ------  ------
 <S>                       <C>       <C>      <C>      <C>      <C>      <C>         <C>      <C>     <C>     <C>     <C>
 Per Share Data:*
 Net asset value,
  beginning
  of period..............    $6.80     $6.61    $6.50    $6.47    $6.30     $6.62     $6.80    $6.61   $6.51   $6.48   $6.31
                           -------   -------  -------  -------  -------    ------    ------   ------  ------  ------  ------
 Income from investment
  operations:
 Net investment income...     0.31      0.32     0.34     0.36     0.37      0.09      0.25     0.26    0.28    0.30    0.31
 Net gains or losses on
  securities (both
  realized and
  unrealized)............    (0.50)     0.22     0.20     0.05     0.17     (0.33)    (0.49)    0.22    0.19    0.05    0.17
                           -------   -------  -------  -------  -------    ------    ------   ------  ------  ------  ------
 Total from investment
  operations.............    (0.19)     0.54     0.54     0.41     0.54     (0.24)    (0.24)    0.48    0.47    0.35    0.48
                           -------   -------  -------  -------  -------    ------    ------   ------  ------  ------  ------
 Less distributions:
 Dividends from net
  investment income......    (0.31)    (0.32)   (0.34)   (0.36)   (0.37)    (0.09)    (0.25)   (0.26)  (0.28)  (0.30)  (0.31)
 Distributions from
  capital gains..........    (0.02)    (0.03)   (0.09)   (0.02)      --        --     (0.02)   (0.03)  (0.09)  (0.02)     --
                           -------   -------  -------  -------  -------    ------    ------   ------  ------  ------  ------
 Total distributions.....    (0.33)    (0.35)   (0.43)   (0.38)   (0.37)    (0.09)    (0.27)   (0.29)  (0.37)  (0.32)  (0.31)
                           -------   -------  -------  -------  -------    ------    ------   ------  ------  ------  ------
 Net asset value, end of
  period.................    $6.28     $6.80    $6.61    $6.50    $6.47     $6.29     $6.29    $6.80   $6.61   $6.51   $6.48
                           =======   =======  =======  =======  =======    ======    ======   ======  ======  ======  ======
 Total Return:               (2.82)%    8.45%    8.74%    6.49%    8.85%    (3.79)%   (3.54)%   7.47%   7.60%   5.53%   7.78%
 Ratios/Supplemental
  Data:
 Net assets, end of
  period
  (in thousands).........  $57,807   $ 58,374 $52,883  $50,264  $51,504    $1,041    $7,658   $6,393  $3,320  $1,919  $1,277
 Ratio of expenses to
  average
  net assets.............     0.84%     0.82%    0.87%    0.84%    0.90%    1.72%+     1.74%    1.73%   1.77%   1.74%   1.91%
 Ratio of net income to
  average
  net assets.............     4.71%     4.81%    5.26%    5.49%    5.84%    3.95%+     3.81%    3.90%   4.36%   4.59%   4.84%
 Portfolio turnover
  rate...................    27.61%    10.75%   22.42%   34.75%   17.64%   27.61%++   27.61%   10.75%  22.42%  34.75%  17.64%

CALIFORNIA QUALITY FUND
 Per Share Data:*
 Net asset value,
  beginning
  of period..............    $7.21     $6.99    $6.75    $6.65    $6.39     $6.75     $7.19    $6.97   $6.74   $6.63   $6.38
                           -------   -------  -------  -------  -------    ------    ------   ------  ------  ------  ------
 Income from investment
  operations:
 Net investment income...     0.31      0.33     0.34     0.35     0.34      0.09      0.25     0.27    0.28    0.28    0.28
 Net gains or losses on
  securities (both
  realized and
  unrealized)............    (0.56)     0.25     0.24     0.11     0.32     (0.35)    (0.56)    0.25    0.23    0.12    0.31
                           -------   -------  -------  -------  -------    ------    ------   ------  ------  ------  ------
 Total from investment
  operations.............    (0.25)     0.58     0.58     0.46     0.66     (0.26)    (0.31)    0.52    0.51    0.40    0.59
                           -------   -------  -------  -------  -------    ------    ------   ------  ------  ------  ------
 Less distributions:
 Dividends from net
  investment income......    (0.31)    (0.33)   (0.34)   (0.35)   (0.34)    (0.09)    (0.25)   (0.27)  (0.28)  (0.28)  (0.28)
 Distributions from
  capital gains..........    (0.23)    (0.03)      --    (0.01)   (0.06)       --     (0.23)   (0.03)     --   (0.01)  (0.06)
                           -------   -------  -------  -------  -------    ------    ------   ------  ------  ------  ------
 Total distributions.....    (0.54)    (0.36)   (0.34)   (0.36)   (0.40)    (0.09)    (0.48)   (0.30)  (0.28)  (0.29)  (0.34)
                           -------   -------  -------  -------  -------    ------    ------   ------  ------  ------  ------
 Net asset value, end of
  period.................    $6.42     $7.21    $6.99    $6.75    $6.65     $6.40     $6.40    $7.19   $6.97   $6.74   $6.63
                           =======   =======  =======  =======  =======    ======    ======   ======  ======  ======  ======
 Total Return:               (3.68)%    8.67%    8.87%    7.00%   10.85%    (4.04)%   (4.58)%   7.71%   7.75%   6.20%   9.61%
 Ratios/Supplemental
  Data:
 Net assets, end of
  period
  (in thousands).........  $74,793   $87,522  $86,992  $95,560  $94,947    $   10    $4,286   $2,302  $1,677  $1,645  $  863
 Ratio of expenses to
  average
  net assets.............     0.82%     0.77%    0.82%    0.79%    0.89%    1.72%+     1.72%    1.68%   1.72%   1.69%   1.88%
 Ratio of net income to
  average
  net assets.............     4.56%     4.75%    4.99%    5.11%    5.34%    3.80%+     3.66%    3.84%   4.09%   4.21%   4.36%
 Portfolio turnover
  rate...................    20.24%    30.82%   12.16%   12.84%   11.24%   20.24%++   20.24%   30.82%  12.16%  12.84%  11.24%
</TABLE>

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

See footnotes on page 59.

                                       51
<PAGE>

COLORADO FUND

<TABLE>
<CAPTION>
                                           CLASS A                         CLASS C                CLASS D
                           --------------------------------------------  ----------- ---------------------------------------
                                  Year ended September 30,               5/27/99(**)      Year ended September 30,
                           --------------------------------------------      to      ---------------------------------------
                            1999      1998     1997     1996     1995      9/30/99    1999     1998    1997    1996    1995
                           -------   -------  -------  -------  -------  ----------- ------   ------  ------  ------  ------
 <S>                       <C>       <C>      <C>      <C>      <C>      <C>         <C>      <C>     <C>     <C>     <C>
 Per Share Data:*
 Net asset value,
  beginning of period....    $7.64     $7.42    $7.27    $7.30    $7.09     $7.47     $7.63    $7.42   $7.27   $7.29   $7.09
                           -------   -------  -------  -------  -------    ------    ------   ------  ------  ------  ------
 Income from investment
  operations:
 Net investment income...     0.34      0.36     0.37     0.37     0.38      0.10      0.28     0.29    0.30    0.31    0.30
 Net gains or losses on
  securities
  (both realized and
  unrealized)............    (0.54)     0.22     0.15    (0.03)    0.21     (0.38)    (0.54)    0.21    0.15   (0.02)   0.20
                           -------   -------  -------  -------  -------    ------    ------   ------  ------  ------  ------
 Total from investment
  operations.............    (0.20)     0.58     0.52     0.34     0.59     (0.28)    (0.26)    0.50    0.45    0.29    0.50
                           -------   -------  -------  -------  -------    ------    ------   ------  ------  ------  ------
 Less distributions:
 Dividends from net
  investment income......    (0.34)    (0.36)   (0.37)   (0.37)   (0.38)    (0.10)    (0.28)   (0.29)  (0.30)  (0.31)  (0.30)
 Distributions from
  capital gains..........       --        --       --       --       --        --        --       --      --      --      --
                           -------   -------  -------  -------  -------    ------    ------   ------  ------  ------  ------
 Total distributions.....    (0.34)    (0.34)   (0.37)   (0.37)   (0.38)    (0.10)    (0.28)   (0.29)  (0.30)  (0.31)  (0.30)
                           -------   -------  -------  -------  -------    ------    ------   ------  ------  ------  ------
 Net asset value, end of
  period.................    $7.10     $7.64    $7.42    $7.27    $7.30     $7.09     $7.09    $7.63   $7.42   $7.27   $7.29
                           =======   =======  =======  =======  =======    ======    ======   ======  ======  ======  ======
 Total Return:               (2.67)%    8.03%    7.30%    4.76%    8.56%    (3.93)%   (3.57)%   6.90%   6.34%   3.95%   7.26%
 Ratios/Supplemental
  Data:
 Net assets, end of
  period (in thousands)..  $44,649   $45,583  $49,780  $52,295  $54,858       $60      $917     $344    $238    $255    $193
 Ratio of expenses to
  average net assets.....    0.87%     0.90%    0.90%    0.85%    0.93%     1.73%+    1.77%    1.80%   1.81%   1.75%   2.02%
 Ratio of net income to
  average net assets.....    4.60%     4.80%    5.01%    5.07%    5.31%     3.85%+    3.70%    3.90%   4.10%   4.17%   4.23%
 Portfolio turnover
  rate...................    7.91%    28.66%    3.99%   12.39%   14.70%     7.91%++   7.91%   28.66%   3.99%  12.39%  14.70%

FLORIDA FUND
 Per Share Data:*
 Net asset value,
  beginning of period....    $8.07     $7.80    $7.67    $7.71    $7.34    $ 7.83     $8.08    $7.81   $7.68   $7.72   $7.34
                           -------   -------  -------  -------  -------    ------    ------   ------  ------  ------  ------
 Income from investment
  operations:
 Net investment
  income***..............     0.34      0.35     0.36     0.38     0.40      0.10      0.28     0.29    0.30    0.32    0.34
 Net gains or losses on
  securities
  (both realized and
  unrealized)............    (0.61)     0.34     0.23     0.04     0.37     (0.40)    (0.60)    0.34    0.23    0.04    0.38
                           -------   -------  -------  -------  -------    ------    ------   ------  ------  ------  ------
 Total from investment
  operations.............    (0.27)     0.69     0.59     0.42     0.77     (0.30)    (0.32)    0.63    0.53    0.36    0.72
                           -------   -------  -------  -------  -------    ------    ------   ------  ------  ------  ------
 Less distributions:
 Dividends from net
  investment income......    (0.34)    (0.35)   (0.36)   (0.38)   (0.40)    (0.10)    (0.28)   (0.29)  (0.30)  (0.32)  (0.34)
 Distributions from
  capital gains..........    (0.05)    (0.07)   (0.10)   (0.08)      --        --     (0.05)   (0.07)  (0.10)  (0.08)     --
                           -------   -------  -------  -------  -------    ------    ------   ------  ------  ------  ------
 Total distributions.....    (0.39)    (0.42)   (0.46)   (0.46)   (0.40)    (0.10)    (0.33)   (0.36)  (0.40)  (0.40)  (0.34)
                           -------   -------  -------  -------  -------    ------    ------   ------  ------  ------  ------
 Net asset value, end of
  period.................    $7.41     $8.07    $7.80    $7.67    $7.71     $7.43     $7.43    $8.08   $7.81   $7.68   $7.72
                           =======   =======  =======  =======  =======    ======    ======   ======  ======  ======  ======
 Total Return:               (3.42)%    9.16%    8.01%    5.54%   10.87%    (3.96)%   (4.01)%   8.32%   7.18%   4.74%  10.07%
 Ratios/Supplemental
  Data:
 Net assets, end of
  period (in thousands)..  $37,606   $42,464  $42,024  $45,200  $49,030      $254    $1,843   $1,940  $1,678  $1,277    $603
 Ratio of expenses to
  average net assets***..    1.03%     1.00%    1.04%    0.97%    0.72%     1.78%+    1.78%    1.77%   1.81%   1.73%   1.66%
 Ratio of net income to
  average net assets***..    4.38%     4.45%    4.70%    4.90%    5.38%     3.82%+    3.63%    3.68%   3.93%   4.14%   4.53%
 Portfolio turnover
  rate...................   18.31%     6.73%   33.68%   18.53%   11.82%    18.31%++  18.31%    6.73%  33.68%  18.53%  11.82%
</TABLE>

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

See footnotes on page 59.

                                       52
<PAGE>

GEORGIA FUND

<TABLE>
<CAPTION>
                                           CLASS A                         CLASS C                 CLASS D
                           --------------------------------------------  ----------- ---------------------------------------
                                  Year ended September 30,               5/27/99(**)      Year ended September 30,
                           --------------------------------------------      to      ---------------------------------------
                            1999      1998     1997     1996     1995      9/30/99    1999     1998    1997    1996    1995
                           -------   -------  -------  -------  -------  ----------- ------   ------  ------  ------  ------
 <S>                       <C>       <C>      <C>      <C>      <C>      <C>         <C>      <C>     <C>     <C>     <C>
 Per Share Data:*
 Net asset value,
  beginning of period....    $8.38     $8.12    $7.87    $7.81    $7.48     $8.17     $8.40    $8.13   $7.88   $7.82   $7.49
                           -------   -------  -------  -------  -------    ------    ------   ------  ------  ------  ------
 Income from investment
  operations:
 Net investment
  income***..............     0.37      0.38     0.38     0.39     0.39      0.11      0.30     0.30    0.31    0.32    0.32
 Net gains or losses on
  securities
  (both realized and
  unrealized)............    (0.58)     0.29     0.28     0.11     0.43     (0.41)    (0.59)    0.30    0.28    0.11    0.43
                           -------   -------  -------  -------  -------    ------    ------   ------  ------  ------  ------
 Total from investment
  operations.............    (0.21)     0.67     0.66     0.50     0.82     (0.30)    (0.29)    0.60    0.59    0.43    0.75
                           -------   -------  -------  -------  -------    ------    ------   ------  ------  ------  ------
 Less distributions:
 Dividends from net
  investment income......    (0.37)    (0.38)   (0.38)   (0.39)   (0.39)    (0.11)    (0.30)   (0.30)  (0.31)  (0.32)  (0.32)
 Distributions from
  capital gains..........    (0.05)    (0.03)   (0.03)   (0.05)   (0.10)       --     (0.05)   (0.03)  (0.03)  (0.05)  (0.10)
                           -------   -------  -------  -------  -------    ------    ------   ------  ------  ------  ------
 Total distributions.....    (0.42)    (0.41)   (0.41)   (0.44)   (0.49)    (0.11)    (0.35)   (0.33)  (0.34)  (0.37)  (0.42)
                           -------   -------  -------  -------  -------    ------    ------   ------  ------  ------  ------
 Net asset value, end of
  period.................    $7.75     $8.38    $8.12    $7.87    $7.81     $7.76     $7.76    $8.40   $8.13   $7.88   $7.82
                           =======   =======  =======  =======  =======    ======    ======   ======  ======  ======  ======
 Total Return:               (2.63)%    8.44%    8.65%    6.56%   11.66%    (3.84)%   (3.61)%   7.59%   7.67%   5.60%  10.58%
 Ratios/Supplemental
  Data:
 Net assets, end of
  period (in thousands)..  $42,692   $48,424  $50,614  $50,995  $57,678      $176    $2,318   $2,809  $2,640  $2,327  $2,079
 Ratio of expenses to
  average net assets***..    0.87%     0.89%    0.89%    0.83%    0.91%     1.74%+    1.77%    1.80%   1.79%   1.73%   1.90%
 Ratio of net income to
  average net assets***..    4.59%     4.57%    4.82%    4.94%    5.26%     3.89%+    3.69%    3.66%   3.92%   4.03%   4.28%
 Portfolio turnover
  rate...................   23.93%     2.92%   12.28%   16.24%    3.36%    23.93%++  23.93%    2.92%  12.28%  16.24%   3.36%

LOUISIANA FUND

 Per Share Data:*
 Net asset value,
  beginning of period....    $8.51     $8.28    $8.16    $8.14    $7.94     $8.19     $8.50     8.27   $8.16   $8.14   $7.94
                           -------   -------  -------  -------  -------    ------    ------   ------  ------  ------  ------
 Income from investment
  operations:
 Net investment income...     0.39      0.41     0.41     0.42     0.43      0.11      0.32     0.33    0.34    0.35    0.35
 Net gains or losses on
  securities
  (both realized and
  unrealized)............    (0.59)     0.24     0.23     0.08     0.34     (0.39)    (0.59)    0.24    0.22    0.08    0.34
                           -------   -------  -------  -------  -------    ------    ------   ------  ------  ------  ------
 Total from investment
  operations.............    (0.20)     0.65     0.64     0.50     0.77     (0.28)   (0.27)     0.57    0.56    0.43    0.69
                           -------   -------  -------  -------  -------    ------    ------   ------  ------  ------  ------
 Less distributions:
 Dividends from net
  investment income......    (0.39)    (0.41)   (0.41)   (0.42)   (0.43)    (0.11)    (0.32)   (0.33)  (0.34)  (0.35)  (0.35)
 Distributions from
  capital gains..........    (0.11)    (0.01)   (0.11)   (0.06)   (0.14)       --     (0.11)   (0.01)  (0.11)  (0.06)  (0.14)
                           -------   -------  -------  -------  -------    ------    ------   ------  ------  ------  ------
 Total distributions.....    (0.50)    (0.42)   (0.52)   (0.48)   (0.57)    (0.11)    (0.43)   (0.34)  (0.45)  (0.41)  (0.49)
                           -------   -------  -------  -------  -------    ------    ------   ------  ------  ------  ------
 Net asset value, end of
  period.................    $7.81     $8.51    $8.28    $8.16    $8.14     $7.80     $7.80    $8.50   $8.27   $8.16   $8.14
                           =======   =======  =======  =======  =======    ======    ======   ======  ======  ======  ======
 Total Return:               (2.44)%    8.08%    8.17%    6.32%   10.30%    (3.55)%   (3.33)%   7.11%   7.07%   5.37%   9.17%
 Ratios/Supplemental
  Data:
 Net assets, end of
  period (in thousands)..  $51,543   $56,308  $56,199  $57,264  $61,988    $   --      $908     $837    $509    $389    $465
 Ratio of expenses to
  average net assets.....    0.84%     0.88%    0.86%    0.82%    0.89%     1.71%+    1.74%    1.78%   1.76%   1.72%   1.91%
 Ratio of net income to
  average net assets.....    4.76%     4.86%    5.08%    5.15%    5.44%     4.00%+    3.86%    3.96%   4.18%   4.25%   4.41%
 Portfolio turnover
  rate...................    8.67%    15.72%   16.08%   10.08%    4.82%     8.67%++   8.67%   15.72%  16.08%  10.08%   4.82%
</TABLE>

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

See footnotes on page 59.

                                       53
<PAGE>

MARYLAND FUND

<TABLE>
<CAPTION>
                                                           CLASS A                           CLASS C
                                         ------------------------------------------------  -----------
                                                  Year ended September 30,                 5/27/99(**)
                                         ------------------------------------------------      to
                                          1999       1998      1997      1996      1995      9/30/99
                                         -------   --------  --------  --------  --------  -----------
 <S>                                     <C>       <C>       <C>       <C>       <C>       <C>
 Per Share Data:*
 Net asset value, beginning of period..    $8.32      $8.14     $7.99     $7.96     $7.71     $8.13
                                         -------   --------  --------  --------  --------    ------
 Income from investment
  operations:
 Net investment income...                   0.39       0.40      0.40      0.40      0.41      0.11
 Net gains or losses on
  securities
  (both realized and
  unrealized)............                  (0.50)      0.23      0.19      0.06      0.38     (0.33)
                                         -------   --------  --------  --------  --------    ------
 Total from investment
  operations.............                  (0.11)      0.63      0.59      0.46      0.79     (0.22)
                                         -------   --------  --------  --------  --------    ------
 Less distributions:
 Dividends from net
  investment income......                  (0.39)     (0.40)    (0.40)    (0.40)    (0.41)    (0.11)
 Distributions from
  capital gains..........                  (0.03)     (0.05)    (0.04)    (0.03)    (0.13)       --
                                         -------   --------  --------  --------  --------    ------
 Total distributions.....                  (0.42)     (0.45)    (0.44)    (0.43)    (0.54)    (0.11)
                                         -------   --------  --------  --------  --------    ------
 Net asset value, end of
  period.................                  $7.79      $8.32     $8.14     $7.99     $7.96     $7.80
                                         =======   ========  ========  ========  ========    ======
 Total Return:                             (1.45)%     7.89%     7.64%     6.00%    10.90%    (2.83)%
 Ratios/Supplemental
  Data:
 Net assets, end of
  period (in thousands)..                $49,523    $54,891   $52,549   $54,041   $56,290       $75
 Ratio of expenses to
  average net assets.....                  0.87%      0.89%     0.90%     0.84%     0.96%     1.75%+
 Ratio of net income to
  average net assets.....                  4.77%      4.82%     4.99%     5.05%     5.31%     4.04%+
 Portfolio turnover
  rate...................                  1.80%      7.59%    14.79%     5.56%     3.63%     1.80%++
<CAPTION>
                                                      CLASS D
                                         ----------------------------------------
                                              Year ended September 30,
                                         ----------------------------------------
                                          1999     1998    1997    1996    1995
                                         -------- ------- ------- ------- -------
 <S>                                     <C>      <C>     <C>     <C>     <C>
 Per Share Data:*
 Net asset value, beginning of period..   $8.33    $8.15   $7.99   $7.97   $7.72
                                         -------- ------- ------- ------- -------
 Income from investment
  operations:
 Net investment income...                  0.31     0.32    0.33    0.33    0.33
 Net gains or losses on
  securities
  (both realized and
  unrealized)............                 (0.50)    0.23    0.20    0.05    0.38
                                         -------- ------- ------- ------- -------
 Total from investment
  operations.............                 (0.19)    0.55    0.53    0.38    0.71
                                         -------- ------- ------- ------- -------
 Less distributions:
 Dividends from net
  investment income......                 (0.31)   (0.32)  (0.33)  (0.33)  (0.33)
 Distributions from
  capital gains..........                 (0.03)   (0.05)  (0.04)  (0.03)  (0.13)
                                         -------- ------- ------- ------- -------
 Total distributions.....                 (0.34)   (0.37)  (0.37)  (0.36)  (0.46)
                                         -------- ------- ------- ------- -------
 Net asset value, end of
  period.................                 $7.80    $8.33   $8.15   $7.99   $7.97
                                         ======== ======= ======= ======= =======
 Total Return:                            (2.00)%   6.91%   6.80%   4.91%   9.75%
 Ratios/Supplemental
  Data:
 Net assets, end of
  period (in thousands)..                $2,775   $3,128  $2,063  $2,047    $630
 Ratio of expenses to
  average net assets.....                 1.77%    1.80%   1.81%   1.72%   2.02%
 Ratio of net income to
  average net assets.....                 3.87%    3.91%   4.08%   4.14%   4.27%
 Portfolio turnover
  rate...................                 1.80%    7.59%  14.79%   5.56%   3.63%

MASSACHUSETTS FUND

 Per Share Data:*
 Net asset value,
  beginning of period....                  $8.27      $7.99     $7.85     $7.91     $7.66     $7.96
                                         -------   --------  --------  --------  --------    ------
 Income from investment
  operations:
 Net investment income...                   0.36       0.38      0.40      0.41      0.42      0.10
 Net gains or losses on
  securities
  (both realized and
  unrealized)............                  (0.75)      0.37      0.22      0.05      0.28     (0.49)
                                         -------   --------  --------  --------  --------    ------
 Total from investment
  operations.............                  (0.39)      0.75      0.62      0.46      0.70     (0.39)
                                         -------   --------  --------  --------  --------    ------
 Less distributions:
 Dividends from net
  investment income......                  (0.36)     (0.38)    (0.40)    (0.41)    (0.42)    (0.10)
 Distributions from
  capital gains..........                  (0.05)     (0.09)    (0.08)    (0.11)    (0.03)       --
                                         -------   --------  --------  --------  --------    ------
 Total distributions.....                  (0.41)     (0.47)    (0.48)    (0.52)    (0.45)    (0.10)
                                         -------   --------  --------  --------  --------    ------
 Net asset value, end of
  period.................                  $7.47      $8.27     $7.99     $7.85     $7.91     $7.47
                                         =======   ========  ========  ========  ========    ======
 Total Return:                             (4.85)%     9.80%     8.11%     5.97%     9.58%    (5.02)%
 Ratios/Supplemental
  Data:
 Net assets, end of
  period (in thousands)..                $92,929   $109,328  $110,011  $109,872  $115,711      $228
 Ratio of expenses to
  average net assets.....                  0.83%      0.80%     0.84%     0.80%     0.86%     1.73%+
 Ratio of net income to
  average net assets.....                  4.56%      4.72%     5.06%     5.24%     5.51%     3.80%+
 Portfolio turnover
  rate...................                 23.88%     13.41%    29.26%    26.30%    16.68%    23.88%++
 Per Share Data:*
 Net asset value,
  beginning of period....                 $8.26    $7.99   $7.84   $7.90   $7.66
                                         -------- ------- ------- ------- -------
 Income from investment
  operations:
 Net investment income...                  0.29     0.31    0.33    0.34    0.34
 Net gains or losses on
  securities
  (both realized and
  unrealized)............                 (0.74)    0.36    0.23    0.05    0.27
                                         -------- ------- ------- ------- -------
 Total from investment
  operations.............                 (0.45)    0.67    0.56    0.39    0.61
                                         -------- ------- ------- ------- -------
 Less distributions:
 Dividends from net
  investment income......                 (0.29)   (0.31)  (0.33)  (0.34)  (0.34)
 Distributions from
  capital gains..........                 (0.05)   (0.09)  (0.08)  (0.11)  (0.03)
                                         -------- ------- ------- ------- -------
 Total distributions.....                 (0.34)   (0.40)  (0.41)  (0.45)  (0.37)
                                         -------- ------- ------- ------- -------
 Net asset value, end of
  period.................                 $7.47    $8.26   $7.99   $7.84   $7.90
                                         ======== ======= ======= ======= =======
 Total Return:                            (5.61)%   8.68%   7.29%   5.01%   8.33%
 Ratios/Supplemental
  Data:
 Net assets, end of
  period (in thousands)..                $2,934   $1,468  $1,245  $1,405    $809
 Ratio of expenses to
  average net assets.....                 1.73%    1.71%   1.74%   1.70%   1.95%
 Ratio of net income to
  average net assets.....                 3.66%    3.81%   4.16%   4.32%   4.47%
 Portfolio turnover
  rate...................                23.88%   13.41%  29.26%  26.30%  16.68%
</TABLE>

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

See footnotes on page 59.

                                       54
<PAGE>

MICHIGAN FUND

<TABLE>
<CAPTION>
                                             CLASS A                            CLASS C                CLASS D
                           -------------------------------------------------  ----------- ---------------------------------------
                                     Year ended September 30,                 5/27/99(**)      Year ended September 30,
                           -------------------------------------------------      to      ---------------------------------------
                             1999       1998      1997      1996      1995      9/30/99    1999     1998    1997    1996    1995
                           --------   --------  --------  --------  --------  ----------- ------   ------  ------  ------  ------
 <S>                       <C>        <C>       <C>       <C>       <C>       <C>         <C>      <C>     <C>     <C>     <C>
 Per Share Data:*
 Net asset value,
  beginning of period...      $8.83      $8.60     $8.46     $8.54     $8.28     $8.43     $8.82    $8.59   $8.45   $8.54   $8.28
                           --------   --------  --------  --------  --------    ------    ------   ------  ------  ------  ------
 Income from investment
  operations:
 Net investment income..       0.40       0.41      0.43      0.45      0.46      0.11      0.32     0.33    0.36    0.37    0.37
 Net gains or losses on
  securities (both
  realized and
  unrealized)...........      (0.63)      0.30      0.23      0.06      0.30    (0.40)     (0.63)    0.30    0.23    0.05    0.30
                           --------   --------  --------  --------  --------    ------    ------   ------  ------  ------  ------
 Total from investment
  operations............      (0.23)      0.71      0.66      0.51      0.76    (0.29)     (0.31)    0.63    0.59    0.42    0.67
                           --------   --------  --------  --------  --------    ------    ------   ------  ------  ------  ------
 Less distributions:
 Dividends from net
  investment income.....      (0.40)     (0.41)    (0.43)    (0.45)    (0.46)   (0.11)     (0.32)   (0.33)  (0.36)  (0.37)  (0.37)
 Distributions from
  capital gains.........      (0.16)     (0.07)    (0.09)    (0.14)    (0.04)       --     (0.16)   (0.07)  (0.09)  (0.14)  (0.04)
                           --------   --------  --------  --------  --------    ------    ------   ------  ------  ------  ------
 Total distributions....      (0.56)     (0.48)    (0.52)    (0.59)    (0.50)   (0.11)     (0.48)   (0.40)  (0.45)  (0.51)  (0.41)
                           --------   --------  --------  --------  --------    ------    ------   ------  ------  ------  ------
 Net asset value, end of
  period................      $8.04      $8.83     $8.60     $8.46     $8.54     $8.03     $8.03    $8.82   $8.59   $8.45   $8.54
                           ========   ========  ========  ========  ========    ======    ======   ======  ======  ======  ======
 Total Return:                (2.77)%     8.63%     8.16%     6.16%     9.56%    (3.55)%   (3.65)%   7.66%   7.19%   5.09%   8.36%
 Ratios/Supplemental
  Data:
 Net assets, end of
  period
  (in thousands)........   $125,560   $144,161  $143,370  $148,178  $151,589      $114    $2,074   $1,841  $1,845  $1,486  $1,172
 Ratio of expenses to
  average net assets....      0.82%      0.79%     0.81%     0.78%     0.87%     1.73%+    1.72%    1.70%   1.71%   1.68%   2.01%
 Ratio of net income to
  average net assets....      4.73%      4.78%     5.13%     5.29%     5.50%     3.96%+    3.83%    3.87%   4.23%   4.39%   4.40%
 Portfolio turnover
  rate..................      3.73%     23.60%    10.98%    19.62%    20.48%     3.73%++   3.73%   23.60%  10.98%  19.62%  20.48%

MINNESOTA FUND
 Per Share Data:*
 Net asset value,
  beginning of period...      $7.98      $7.79     $7.68     $7.82     $7.72     $7.72     $7.98    $7.79   $7.68   $7.82   $7.73
                           --------   --------  --------  --------  --------    ------    ------   ------  ------  ------  ------
 Income from investment
  operations:
 Net investment income..       0.36       0.38      0.40      0.42      0.45      0.10      0.30     0.31    0.33    0.35    0.38
 Net gains or losses on
  securities (both
  realized and
  unrealized)...........      (0.52)      0.20      0.11     (0.12)     0.11     (0.36)    (0.52)    0.20    0.11   (0.12)   0.10
                           --------   --------  --------  --------  --------    ------    ------   ------  ------  ------  ------
 Total from investment
  operations............      (0.16)      0.58      0.51      0.30      0.56     (0.26)    (0.22)    0.51    0.44    0.23    0.48
                           --------   --------  --------  --------  --------    ------    ------   ------  ------  ------  ------
 Less distributions:
 Dividends from net
  investment income.....      (0.36)     (0.38)    (0.40)    (0.42)    (0.45)   (0.10)     (0.30)   (0.31)  (0.33)  (0.35)  (0.38)
 Distributions from
  capital gains.........      (0.10)     (0.01)       --     (0.02)    (0.01)       --     (0.10)   (0.01)     --   (0.02)  (0.01)
                           --------   --------  --------  --------  --------    ------    ------   ------  ------  ------  ------
 Total distributions....      (0.46)     (0.39)    (0.40)    (0.44)    (0.46)   (0.10)     (0.40)   (0.32)  (0.33)  (0.37)  (0.39)
                           --------   --------  --------  --------  --------    ------    ------   ------  ------  ------  ------
 Net asset value, end of
  period................      $7.36      $7.98     $7.79     $7.68     $7.82     $7.36     $7.36    $7.98   $7.79   $7.68   $7.82
                           ========   ========  ========  ========  ========    ======    ======   ======  ======  ======  ======
 Total Return:                (2.09)%     7.68%     6.85%     3.99%     7.61%    (3.47)%   (2.96)%   6.71%   5.89%   3.06%   6.45%
 Ratios/Supplemental
  Data:
 Net assets, end of
  period
  (in thousands)........   $109,165   $121,374  $121,674  $126,173  $132,716    $   --    $1,856   $2,103  $1,799  $2,036  $2,237
 Ratio of expenses to
  average net assets....      0.84%      0.81%     0.85%     0.81%     0.87%     1.74%+    1.74%    1.72%   1.75%   1.71%   1.85%
 Ratio of net income to
  average net assets....      4.71%      4.87%     5.21%     5.47%     5.89%     3.94%+    3.81%    3.96%   4.31%   4.57%   4.92%
 Portfolio turnover
  rate..................      9.74%     21.86%     6.88%    26.89%     5.57%     9.74%++   9.74%   21.86%   6.88%  26.89%   5.57%
</TABLE>

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

See footnotes on page 59.

                                       55
<PAGE>

MISSOURI FUND

<TABLE>
<CAPTION>
                                           CLASS A                         CLASS C                 CLASS D
                           --------------------------------------------  ----------- ---------------------------------------
                                  Year ended September 30,               5/27/99(**)      Year ended September 30,
                           --------------------------------------------      to      ---------------------------------------
                            1999      1998     1997     1996     1995      9/30/99    1999     1998    1997    1996    1995
                           -------   -------  -------  -------  -------  ----------- ------   ------  ------  ------  ------
 <S>                       <C>       <C>      <C>      <C>      <C>      <C>         <C>      <C>     <C>     <C>     <C>
 Per Share Data:*
 Net asset value,
  beginning of period....    $8.03     $7.82    $7.71    $7.70    $7.41     $7.68     $8.03    $7.82   $7.72   $7.70   $7.41
                           -------   -------  -------  -------  -------    ------    ------   ------  ------  ------  ------
 Income from investment
  operations:
 Net investment
  income***..............     0.35      0.36     0.38     0.39     0.40      0.10      0.28     0.29    0.31    0.32    0.32
 Net gains or losses on
  securities
  (both realized and
  unrealized)............    (0.62)     0.28     0.19     0.08     0.36     (0.39)    (0.62)    0.28    0.18    0.09    0.36
                           -------   -------  -------  -------  -------    ------    ------   ------  ------  ------  ------
 Total from investment
  operations.............    (0.27)     0.64     0.57     0.47     0.76     (0.29)    (0.34)    0.57    0.49    0.41    0.68
                           -------   -------  -------  -------  -------    ------    ------   ------  ------  ------  ------
 Less distributions:
 Dividends from net
  investment income......    (0.35)    (0.36)   (0.38)   (0.39)   (0.40)    (0.10)    (0.28)   (0.29)  (0.31)  (0.32)  (0.32)
 Distributions from
  capital gains..........    (0.12)    (0.07)   (0.08)   (0.07)   (0.07)       --     (0.12)   (0.07)  (0.08)  (0.07)  (0.07)
                           -------   -------  -------  -------  -------    ------    ------   ------  ------  ------  ------
 Total distributions.....    (0.47)    (0.43)   (0.46)   (0.46)   (0.47)    (0.10)    (0.40)   (0.36)  (0.39)  (0.39)  (0.39)
                           -------   -------  -------  -------  -------    ------    ------   ------  ------  ------  ------
 Net asset value, end of
  period.................    $7.29     $8.03    $7.82    $7.71    $7.70     $7.29     $7.29    $8.03   $7.82   $7.72   $7.70
                           =======   =======  =======  =======  =======    ======    ======   ======  ======  ======  ======
 Total Return:               (3.58)%    8.41%    7.70%    6.27%   10.67%    (3.95)%   (4.46)%   7.45%   6.60%   5.46%   9.49%
 Ratios/Supplemental
  Data:
 Net assets, end of
  period (in thousands)..  $43,437   $49,949  $52,766  $49,941  $51,169       $21      $617     $418    $474    $565    $515
 Ratio of expenses to
  average net assets***..    0.87%     0.89%    0.89%    0.86%    0.88%     1.74%+    1.77%    1.79%   1.80%   1.76%   1.98%
 Ratio of net income to
  average net assets***..    4.50%     4.59%    4.93%    5.03%    5.31%     3.75%+    3.60%    3.69%   4.02%   4.13%   4.23%
 Portfolio turnover
  rate...................   10.43%    21.26%    6.47%    8.04%    3.88%    10.43%++  10.43%   21.26%   6.47%   8.04%   3.88%

NEW JERSEY FUND

 Per Share Data:*
 Net asset value,
  beginning of period....    $7.78     $7.56    $7.60    $7.59    $7.40     $7.58     $7.86    $7.64   $7.68   $7.67   $7.48
                           -------   -------  -------  -------  -------    ------    ------   ------  ------  ------  ------
 Income from investment
  operations:
 Net investment
  income***..............     0.33      0.35     0.36     0.39     0.39      0.09      0.27     0.29    0.31    0.33    0.33
 Net gains or losses on
  securities
  (both realized and
  unrealized)............    (0.55)     0.30     0.21     0.01     0.29     (0.36)    (0.54)    0.30    0.21    0.01    0.29
                           -------   -------  -------  -------  -------    ------    ------   ------  ------  ------  ------
 Total from investment
  operations.............    (0.22)     0.65     0.57     0.40     0.68     (0.27)    (0.27)    0.59    0.52    0.34    0.62
                           -------   -------  -------  -------  -------    ------    ------   ------  ------  ------  ------
 Less distributions:
 Dividends from net
  investment income......    (0.33)    (0.35)   (0.36)   (0.39)   (0.39)    (0.09)    (0.27)   (0.29)  (0.31)  (0.33)  (0.33)
 Distributions from
  capital gains..........    (0.10)    (0.08)   (0.25)      --    (0.10)       --     (0.10)   (0.08)  (0.25)     --   (0.10)
                           -------   -------  -------  -------  -------    ------    ------   ------  ------  ------  ------
 Total distributions.....    (0.43)    (0.43)   (0.61)   (0.39)   (0.49)    (0.09)    (0.37)   (0.37)  (0.56)  (0.33)  (0.43)
                           -------   -------  -------  -------  -------    ------    ------   ------  ------  ------  ------
 Net asset value, end of
  period.................    $7.13     $7.78    $7.56    $7.60    $7.59     $7.22     $7.22    $7.86   $7.64   $7.68   $7.67
                           =======   =======  =======  =======  =======    ======    ======   ======  ======  ======  ======
 Total Return:               (3.05)%    8.87%    7.96%    5.37%    9.77%    (3.33)%   (3.57)%   7.97%   7.10%   4.56%   8.79%
 Ratios/Supplemental
  Data:
 Net assets, end of
  period (in thousands)..  $52,992   $61,739  $62,597  $66,293  $73,561      $127    $1,550   $1,582  $1,282  $1,152  $1,190
 Ratio of expenses to
  average net assets***..    1.07%     1.02%    1.06%    1.02%    1.01%     1.82%+    1.82%    1.80%   1.83%   1.79%   1.89%
 Ratio of net income to
  average net assets***..    4.35%     4.54%    4.90%    5.06%    5.29%     3.71%+    3.60%    3.76%   4.13%   4.29%   4.45%
 Portfolio turnover
  rate...................    5.55%    23.37%   20.22%   25.65%    4.66%     5.55%++   5.55%   23.37%  20.22%  25.65%   4.66%
</TABLE>

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

See footnotes on page 59.

                                       56
<PAGE>

NEW YORK FUND

<TABLE>
<CAPTION>
                                                  CLASS A                         CLASS C
                                  --------------------------------------------  -----------
                                         Year ended September 30,
                                  --------------------------------------------  5/27/99(**)
                                   1999      1998     1997     1996     1995    to 9/30/99
                                  -------   -------  -------  -------  -------  -----------
<S>                               <C>       <C>      <C>      <C>      <C>      <C>
Per Share Data:*
Net asset value, beginning of
 period.......................      $8.60     $8.28    $7.98    $7.86    $7.67     $8.14
                                  -------   -------  -------  -------  -------    ------
Income from investment
 operations:
 Net investment income........       0.38      0.40     0.41     0.42     0.42      0.11
 Net gains or losses on
  securities
  (both realized and unrealized)..  (0.69)     0.40     0.32     0.12     0.36     (0.44)
                                  -------   -------  -------  -------  -------    ------
Total from investment
 operations...................      (0.31)     0.80     0.73     0.54     0.78     (0.33)
                                  -------   -------  -------  -------  -------    ------
Less distributions:
 Dividends from net
  investment income...........      (0.38)    (0.40)   (0.41)   (0.42)   (0.42)    (0.11)
 Distributions from capital
  gains.......................      (0.21)    (0.08)   (0.02)      --    (0.17)      --
                                  -------   -------  -------  -------  -------    ------
Total distributions...........      (0.59)    (0.48)   (0.43)   (0.42)   (0.59)    (0.11)
                                  -------   -------  -------  -------  -------    ------
Net asset value, end of
 period.......................      $7.70     $8.60    $8.28    $7.98    $7.86     $7.70
                                  =======   =======  =======  =======  =======    ======
Total Return:                       (3.86)%   10.02%    9.45%    6.97%   10.93%    (4.22)%
Ratios/Supplemental Data:
Net assets, end of period
 (in thousands)...............    $76,833   $76,833  $83,528  $82,719  $83,980      $189
Ratio of expenses to average
 net assets...................      0.81%     0.81%    0.82%    0.77%    0.88%     1.69%+
Ratio of net income to average
 net assets...................      4.63%     4.74%    5.09%    5.24%    5.52%     3.96%+
Portfolio turnover rate.......     11.85%    39.85%   23.83%   25.88%   34.05%    11.85%++
<CAPTION>
                                               CLASS D
                                  ----------------------------------------
                                       Year ended September 30,
                                  ----------------------------------------
                                   1999     1998    1997    1996    1995
                                  -------- ------- ------- ------- -------
<S>                               <C>      <C>     <C>     <C>     <C>
Per Share Data:*
Net asset value, beginning of
 period.......................     $8.60    $8.29   $7.98   $7.87   $7.67
                                  -------- ------- ------- ------- -------
Income from investment
 operations:
 Net investment income........      0.30     0.32    0.34    0.34    0.34
 Net gains or losses on
  securities
  (both realized and unrealized).. (0.69)    0.39    0.33    0.11    0.37
                                  -------- ------- ------- ------- -------
Total from investment
 operations...................     (0.39)    0.71    0.67    0.45    0.71
                                  -------- ------- ------- ------- -------
Less distributions:
 Dividends from net
  investment income...........     (0.30)   (0.32)  (0.34)  (0.34)  (0.34)
 Distributions from capital
  gains.......................     (0.21)   (0.08)  (0.02)     --   (0.17)
                                  -------- ------- ------- ------- -------
Total distributions...........     (0.51)   (0.40)  (0.36)  (0.34)  (0.51)
                                  -------- ------- ------- ------- -------
Net asset value, end of
 period.......................     $7.70    $8.60   $8.29   $7.98   $7.87
                                  ======== ======= ======= ======= =======
Total Return:                      (4.73)%   8.88%   8.60%   5.86%   9.87%
Ratios/Supplemental Data:
Net assets, end of period
 (in thousands)...............    $2,844   $2,182  $1,572  $1,152    $885
Ratio of expenses to average
 net assets...................     1.71%    1.72%   1.73%   1.68%   1.96%
Ratio of net income to average
 net assets...................     3.73%    3.83%   4.18%   4.33%   4.42%
Portfolio turnover rate.......    11.85%   39.85%  23.83%  25.88%  34.05%

NORTH CAROLINA FUND
Per Share Data:*
Net asset value, beginning of
 period.......................      $8.30     $8.05    $7.84    $7.74    $7.30     $7.97
                                  -------   -------  -------  -------  -------    ------
Income from investment
 operations:
 Net investment income***.....       0.35      0.36     0.37     0.37     0.39      0.10
 Net gains or losses on
  securities
  (both realized and unrealized)..  (0.59)     0.31     0.24     0.11     0.45     (0.38)
                                  -------   -------  -------  -------  -------    ------
Total from investment
 operations...................      (0.24)     0.67     0.61     0.48     0.84     (0.28)
                                  -------   -------  -------  -------  -------    ------
Less distributions:
 Dividends from net
  investment income...........      (0.35)    (0.36)   (0.37)   (0.37)   (0.39)    (0.10)
 Distributions from capital
  gains.......................      (0.12)    (0.06)   (0.03)   (0.01)   (0.01)      --
                                  -------   -------  -------  -------  -------    ------
Total distributions...........      (0.47)    (0.42)   (0.40)   (0.38)   (0.40)    (0.10)
                                  -------   -------  -------  -------  -------    ------
Net asset value, end of
 period.......................      $7.59     $8.30    $8.05    $7.84    $7.74     $7.59
                                  =======   =======  =======  =======  =======    ======
Total Return:                       (3.07)%    8.60%    8.01%    6.39%   11.92%    (3.62)%
Ratios/Supplemental Data:
Net assets, end of period
 (in thousands)...............    $27,224   $32,358  $32,684  $35,934  $37,446       $10
Ratio of expenses to average
 net assets***................      1.06%     1.05%    1.09%    1.05%    0.82%     1.80%+
Ratio of net income to average
 net assets***................      4.38%     4.41%    4.66%    4.75%    5.21%     3.77%+
Portfolio turnover rate.......      1.52%    20.37%   13.04%   15.12%    4.38%     1.52%++
Per Share Data:*
Net asset value, beginning of
 period.......................     $8.30    $8.05   $7.83   $7.74   $7.29
                                  -------- ------- ------- ------- -------
Income from investment
 operations:
 Net investment income***.....      0.29     0.30    0.31    0.31    0.33
 Net gains or losses on
  securities
  (both realized and unrealized).. (0.59)    0.31    0.25    0.10    0.46
                                  -------- ------- ------- ------- -------
Total from investment
 operations...................     (0.30)    0.61    0.56    0.41    0.79
                                  -------- ------- ------- ------- -------
Less distributions:
 Dividends from net
  investment income...........     (0.29)   (0.30)  (0.31)  (0.31)  (0.33)
 Distributions from capital
  gains.......................     (0.12)   (0.06)  (0.03)  (0.01)  (0.01)
                                  -------- ------- ------- ------- -------
Total distributions...........     (0.41)   (0.36)  (0.34)  (0.32)  (0.34)
                                  -------- ------- ------- ------- -------
Net asset value, end of
 period.......................     $7.59    $8.30   $8.05   $7.83   $7.74
                                  ======== ======= ======= ======= =======
Total Return:                      (3.79)%   7.77%   7.33%   5.45%  11.19%
Ratios/Supplemental Data:
Net assets, end of period
 (in thousands)...............    $1,682   $1,456  $1,217  $1,232  $1,257
Ratio of expenses to average
 net assets***................     1.81%    1.82%   1.85%   1.81%   1.64%
Ratio of net income to average
 net assets***................     3.63%    3.64%   3.90%   3.99%   4.42%
Portfolio turnover rate.......     1.52%   20.37%  13.04%  15.12%   4.38%
</TABLE>

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

See footnotes on page 59.

                                       57
<PAGE>

OHIO FUND

<TABLE>
<CAPTION>
                                             CLASS A                            CLASS C                CLASS D
                           -------------------------------------------------  ----------- ---------------------------------------
                                     Year ended September 30,                 5/27/99(**)      Year ended September 30,
                           -------------------------------------------------      to      ---------------------------------------
                             1999       1998      1997      1996      1995      9/30/99    1999     1998    1997    1996    1995
                           --------   --------  --------  --------  --------  ----------- ------   ------  ------  ------  ------
 <S>                       <C>        <C>       <C>       <C>       <C>       <C>         <C>      <C>     <C>     <C>     <C>
 Per Share Data:*
 Net asset value,
  beginning
  of period.............      $8.37      $8.19     $8.09     $8.11     $7.90     $8.06     $8.41    $8.23   $8.13   $8.15   $7.92
                           --------   --------  --------  --------  --------    ------    ------   ------  ------  ------  ------
 Income from investment
  operations:
 Net investment income..       0.38       0.40      0.42      0.43      0.44      0.11      0.31     0.33    0.35    0.36    0.36
 Net gains or losses on
  securities (both
  realized and
  unrealized)...........      (0.60)      0.29      0.17      0.02      0.28    (0.38)     (0.60)    0.29    0.17    0.02    0.30
                           --------   --------  --------  --------  --------    ------    ------   ------  ------  ------  ------
 Total from investment
  operations............      (0.22)      0.69      0.59      0.45      0.72    (0.27)     (0.29)    0.62    0.52    0.38    0.66
                           --------   --------  --------  --------  --------    ------    ------   ------  ------  ------  ------
 Less distributions:
 Dividends from net
  investment income.....      (0.38)     (0.40)    (0.42)    (0.43)    (0.44)    (0.11)    (0.31)   (0.33)  (0.35)  (0.36)  (0.36)
 Distributions from
  capital gains.........      (0.13)     (0.11)    (0.07)    (0.04)    (0.07)       --     (0.13)   (0.11)  (0.07)  (0.04)  (0.07)
                           --------   --------  --------  --------  --------    ------    ------   ------  ------  ------  ------
 Total distributions....      (0.51)     (0.51)    (0.49)    (0.47)    (0.51)    (0.11)    (0.44)   (0.44)  (0.42)  (0.40)  (0.43)
                           --------   --------  --------  --------  --------    ------    ------   ------  ------  ------  ------
 Net asset value, end of
  period................      $7.64      $8.37     $8.19     $8.09     $8.11     $7.68     $7.68    $8.41   $8.23   $8.13   $8.15
                           ========   ========  ========  ========  ========    ======    ======   ======  ======  ======  ======
 Total Return:                (2.68)%     8.77%     7.54%     5.68%     9.59%    (3.51)%   (3.52)%   7.78%   6.57%   4.74%   8.67%
 Ratios/Supplemental
  Data:
 Net assets, end of
  period
  (in thousands)........   $135,034   $153,126  $154,419  $162,243  $170,191       $18    $1,327   $1,103  $1,160  $1,011    $660
 Ratio of expenses to
  average
  net assets............      0.81%      0.78%     0.81%     0.77%     0.84%     1.71%+    1.71%    1.69%   1.71%   1.67%   1.93%
 Ratio of net income to
  average
  net assets............      4.78%      4.92%     5.19%     5.32%     5.56%     3.99%+    3.88%    4.01%   4.29%   4.42%   4.48%
 Portfolio turnover
  rate..................      6.07%     24.74%    11.76%    12.90%     2.96%     6.07%++   6.07%   24.74%  11.76%  12.90%   2.96%

OREGON FUND
 Per Share Data:*
 Net asset value,
  beginning of period...      $8.05      $7.87     $7.65     $7.66     $7.43     $7.83     $8.04    $7.87   $7.64   $7.65   $7.43
                           --------   --------  --------  --------  --------    ------    ------   ------  ------  ------  ------
 Income from investment
  operations:
 Net investment
  income***.............       0.35       0.36      0.38      0.40      0.40      0.10      0.28     0.29    0.31    0.33    0.33
 Net gains or losses on
  securities (both
  realized and
  unrealized)...........      (0.52)      0.28      0.26        --      0.25     (0.35)    (0.51)    0.27    0.27      --    0.24
                           --------   --------  --------  --------  --------    ------    ------   ------  ------  ------  ------
 Total from investment
  operations............      (0.17)      0.64      0.64      0.40      0.65     (0.25)    (0.23)    0.56    0.58    0.33    0.57
                           --------   --------  --------  --------  --------    ------    ------   ------  ------  ------  ------
 Less distributions:
 Dividends from net
  investment income.....      (0.35)     (0.36)    (0.38)    (0.40)    (0.40)    (0.10)    (0.28)   (0.29)  (0.31)  (0.33)  (0.33)
 Distributions from
  capital gains.........      (0.05)     (0.10)    (0.04)    (0.01)    (0.02)       --     (0.05)   (0.10)  (0.04)  (0.01)  (0.02)
                           --------   --------  --------  --------  --------    ------    ------   ------  ------  ------  ------
 Total distributions....      (0.40)     (0.46)    (0.42)    (0.41)    (0.42)    (0.10)    (0.33)   (0.39)  (0.35)  (0.34)  (0.35)
                           --------   --------  --------  --------  --------    ------    ------   ------  ------  ------  ------
 Net asset value, end of
  period................      $7.48      $8.05     $7.87     $7.65     $7.66     $7.48     $7.48    $8.04   $7.87   $7.64   $7.65
                           ========   ========  ========  ========  ========    ======    ======   ======  ======  ======  ======
 Total Return:                (2.16)%     8.48%     8.60%     5.27%     9.05%    (3.32)%  (2.92)%    7.37%   7.77%   4.33%   7.86%
 Ratios/Supplemental
  Data:
 Net assets, end of
  period
  (in thousands)........    $54,473    $57,601   $55,239   $57,345   $59,549    $   --    $2,231   $2,650  $1,678  $1,540  $1,495
 Ratio of expenses to
  average
  net assets*** ........      0.86%      0.88%     0.90%     0.86%     0.86%    1.73% +    1.76%    1.79%   1.80%   1.76%   1.83%
 Ratio of net income to
  average
  net assets*** ........      4.52%      4.60%     4.88%     5.18%     5.40%    3.77% +    3.62%    3.69%   3.98%   4.28%   4.41%
 Portfolio turnover
  rate..................     12.28%     12.62%    19.46%    28.65%     2.47%    12.28%++  12.28%   12.62%  19.46%  28.65%   2.47%
</TABLE>

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

See footnotes on page 59.

                                       58
<PAGE>

PENNSYLVANIA FUND

<TABLE>
<CAPTION>
                                           CLASS A                           CLASS C                CLASS D
                         ------------------------------------------------  ----------- ---------------------------------------
                                  Year ended September 30,                                  Year ended September 30,
                         ------------------------------------------------  5/27/99(**) ---------------------------------------
                          1999       1998      1997      1996      1995    to 9/30/99   1999     1998    1997    1996    1995
                         -------   --------  --------  --------  --------  ----------- ------   ------  ------  ------  ------
<S>                      <C>       <C>       <C>       <C>       <C>       <C>         <C>      <C>     <C>     <C>     <C>
Per Share Data:*
Net asset value,
 beginning of period....   $8.24      $7.96     $7.82     $7.79     $7.55     $7.88     $8.23    $7.95   $7.81   $7.78   $7.54
                         -------   --------  --------  --------  --------    ------    ------   ------  ------  ------  ------
Income from investment
 operations:
 Net investment income..    0.34       0.35      0.36      0.38      0.38      0.10      0.28     0.29    0.30    0.32    0.31
 Net gains or losses on
  securities (both
  realized and
  unrealized)...........   (0.60)      0.36      0.24      0.12      0.37     (0.39)    (0.59)    0.36    0.24    0.12    0.37
                         -------   --------  --------  --------  --------    ------    ------   ------  ------  ------  ------
Total from investment
 operations.............   (0.26)      0.71      0.60      0.50      0.75     (0.29)    (0.31)    0.65    0.54    0.44    0.68
                         -------   --------  --------  --------  --------    ------    ------   ------  ------  ------  ------
Less distributions:
 Dividends from net
  investment income.....   (0.34)     (0.35)    (0.36)    (0.38)    (0.38)    (0.10)    (0.28)   (0.29)  (0.30)  (0.32)  (0.31)
 Distributions from
  capital gains.........   (0.15)     (0.08)    (0.10)    (0.09)    (0.13)      --      (0.15)   (0.08)  (0.10)  (0.09)  (0.13)
                         -------   --------  --------  --------  --------    ------    ------   ------  ------  ------  ------
Total distributions.....   (0.49)     (0.43)    (0.46)    (0.47)    (0.51)    (0.10)    (0.43)   (0.37)  (0.40)  (0.41)  (0.44)
                         -------   --------  --------  --------  --------    ------    ------   ------  ------  ------  ------
Net asset value, end of
 period.................   $7.49      $8.24     $7.96     $7.82     $7.79     $7.49     $7.49    $8.23   $7.95   $7.81   $7.78
                         =======   ========  ========  ========  ========    ======    ======   ======  ======  ======  ======
Total Return:              (3.38)%     9.20%     7.89%     6.57%    10.55%    (3.84)%   (3.99)%   8.36%   7.07%   5.76%   9.53%
Ratios/Supplemental
 Data:
Net assets, end of
 period
 (in thousands) ........ $25,142    $29,582   $30,092   $31,139   $33,251      $143      $856     $607    $816    $876    $426
Ratio of expenses to
 average
 net assets.............   1.21%      1.19%     1.19%     1.11%     1.21%     1.93%+    1.96%    1.97%   1.96%   1.88%   2.23%
Ratio of net income to
 average
 net assets.............   4.25%      4.34%     4.60%     4.82%     5.05%     3.69%+    3.50%    3.56%   3.83%   4.05%   4.10%
Portfolio turnover
 rate...................   7.80%     13.05%    32.99%     4.56%    11.78%     7.80%++   7.80%   13.05%  32.99%   4.56%  11.78%

SOUTH CAROLINA FUND
Per Share Data:*
Net asset value,
 beginning of period....   $8.38      $8.16     $8.07     $7.97     $7.61     $8.08     $8.38    $8.16   $8.06   $7.97   $7.61
                         -------   --------  --------  --------  --------    ------    ------   ------  ------  ------  ------
Income from investment
 operations:
 Net investment income..    0.38       0.39      0.40      0.41      0.41      0.11      0.30     0.31    0.33    0.34    0.34
 Net gains or losses on
  securities (both
  realized and
  unrealized)...........   (0.64)      0.29      0.22      0.12      0.37     (0.42)    (0.65)    0.29    0.23    0.11    0.37
                         -------   --------  --------  --------  --------    ------    ------   ------  ------  ------  ------
Total from investment
 operations.............   (0.26)      0.68      0.62      0.53      0.78     (0.31)    (0.35)    0.60    0.56    0.45    0.71
                         -------   --------  --------  --------  --------    ------    ------   ------  ------  ------  ------
Less distributions:
 Dividends from net
  investment income.....   (0.38)     (0.39)    (0.40)    (0.41)    (0.41)    (0.11)    (0.30)   (0.31)  (0.33)  (0.34)  (0.34)
 Distributions from
  capital gains.........   (0.07)     (0.07)    (0.13)    (0.02)    (0.01)      --      (0.07)   (0.07)  (0.13)  (0.02)  (0.01)
                         -------   --------  --------  --------  --------    ------    ------   ------  ------  ------  ------
Total distributions.....   (0.45)     (0.46)    (0.53)    (0.43)    (0.42)    (0.11)    (0.37)   (0.38)  (0.46)  (0.36)  (0.35)
                         -------   --------  --------  --------  --------    ------    ------   ------  ------  ------  ------
Net asset value, end of
 period.................   $7.67      $8.38     $8.16     $8.07     $7.97     $7.66     $7.66    $8.38   $8.16   $8.06   $7.97
                         =======   ========  ========  ========  ========    ======    ======   ======  ======  ======  ======
Total Return:              (3.32)%     8.66%     7.99%     6.82%    10.69%    (4.01)%   (4.32)%   7.68%   7.15%   5.73%   9.63%
Ratios/Supplemental
 Data:
Net assets, end of
 period
 (in thousands) ........ $92,793   $106,328  $101,018  $108,163  $112,421      $335    $5,936   $5,594  $3,663  $2,714  $1,704
Ratio of expenses to
 average
 net assets ............   0.83%      0.80%     0.84%     0.80%     0.88%     1.72%+    1.73%    1.71%   1.75%   1.70%   1.85%
Ratio of net income to
 average
 net assets.............   4.65%      4.74%     5.04%     5.15%     5.38%     3.96%+    3.75%    3.83%   4.13%   4.25%   4.40%
Portfolio turnover
 rate...................  18.06%     16.63%        --    20.66%     4.13%    18.06%++  18.06%   16.63%      --  20.66%   4.13%
</TABLE>

- -------------
* Per share amounts are based on average shares outstanding.

** Commencement of offering of Class C shares.

*** For periods prior to 1996 (1997 for the Florida Fund and the North Carolina
    Fund), Seligman voluntarily waived a portion of its management fees. These
    amounts reflect the effect of the waivers.


+ Annualized.

++ For the year ended September 30, 1999.


                                       59
<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
</TABLE>

                24-hour automated 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.

                                       60
<PAGE>

For More Information

The following information is available without charge upon request: Call
toll-free (800) 221-2450 in the US or collect (212) 682-7600 outside the US. You
may also call these numbers to request other information about the Funds or to
make shareholder inquiries.

Statement of Additional Information (SAI) contains additional information about
the Fund. It is on file with the Securities and Exchange Commission, or 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

                                     [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 (202) 942-8090. The SAI,
Annual/Semi-Annual Reports and other information about the Fund are also
available on the EDGAR Database on the SEC's Internet site: http://www.sec.gov.

Copies of this information may be obtained, upon payment of a duplicating fee,
by electronic request at the following E-mail address: [email protected], or by
writing: Securities and Exchange Commission, Public Reference Section,
Washington, DC 20549-0102.

SEC FILE NUMBERS: Seligman Municipal Fund Series, Inc.: 811-3828
                  Seligman Municipal Series Trust: 811-4250
                  Seligman New Jersey Municipal Fund, Inc.: 811-5126
                  Seligman Pennsylvania Municipal Fund Series: 811-4666



<PAGE>



                   SELIGMAN PENNSYLVANIA MUNICIPAL FUND SERIES



                       Statement of Additional Information
                                February 1, 2000


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



This Statement of Additional Information (SAI) expands upon and supplements the
information contained in the current Prospectus of Seligman Municipal Funds,
dated February 1, 2000. 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 may be obtained 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 ...............................................  7
     Control Persons and Principal Holders of Securities...................  12
     Investment Advisory and Other Services ...............................  13
     Brokerage Allocation and Other Practices .............................  17
     Shares of Beneficial Interest and Other Securities ...................  18
     Purchase, Redemption, and Pricing of Shares ..........................  18
     Taxation of the Fund .................................................  22
     Underwriters..........................................................  25
     Calculation of Performance Data ......................................  26
     Financial Statements..................................................  29
     General Information...................................................  29
     Appendix A ...........................................................  31
     Appendix B ...........................................................  34
     Appendix C ...........................................................  37



<PAGE>


                                  Fund History

The Fund was organized as an unincorporated trust under the laws of the
Commonwealth of Pennsylvania by a Declaration of Trust dated May 13, 1986.

              Description of the Fund and its Investments and Risks

Classification

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

Investment Strategies and Risks

The Fund seeks to provide income exempt from regular federal income taxes and
Pennsylvania income taxes consistent with preservation of capital.

The Fund is expected to invest principally, without percentage limitations, in
municipal securities which on the date of purchase are rated within the four
highest rating categories of Moody's Investors Service (Moody's) or Standard &
Poor's Corporation (S&P). Municipal Securities rated in these categories are
commonly referred to as investment grade. The Fund may invest in municipal
securities that are not rated, or which do not fall into the credit ratings
noted above if, based upon credit analysis, it is believed that such securities
are of comparable quality. In determining suitability of investment in a lower
rated or unrated security, the Fund will take into consideration asset and debt
service coverage, the purpose of the financing, history of the issuer, existence
of other rated securities of the issuer and other considerations as may be
relevant, including comparability to other issuers.

Although securities rated in the fourth rating category are commonly referred to
as investment grade, investment in such securities could involve risks not
usually associated with bonds rated in the first three categories. Bonds rated
BBB by S&P are more likely as a result of adverse economic conditions or
changing circumstance to exhibit a weakened capacity to pay interest and re-pay
principal than bonds in higher rating categories and bonds rated Baa by Moody's
lack outstanding investment characteristics and in fact have speculative
characteristics according to Moody's. Municipal securities in the fourth rating
category of S&P or Moody's will generally provide a higher yield than do higher
rated municipal securities of similar maturities; however, they are subject to a
greater degree of fluctuation in value as a result of changing interest rates
and economic conditions. The market value of the municipal securities will also
be affected by the degree of interest of dealers to bid for them, and in certain
markets dealers may be more unwilling to trade municipal securities rated in the
fourth rating categories than in the higher rating categories.

A description of the credit rating categories is contained in Appendix A to this
Statement.

From time to time, proposals have been introduced before Congress for the
purpose of restricting or eliminating the federal income tax exemption for
interest on municipal securities and for providing state and local governments
with federal credit assistance. Reevaluation of the Fund's investment objectives
and structure might be necessary in the future due to market conditions that may
result from future changes in the tax laws.

Pennsylvania Municipal Securities. Pennsylvania Municipal Securities include
notes, bonds and commercial paper issued by or on behalf of the Commonwealth of
Pennsylvania, its political subdivisions, agencies, and instrumentalities, the
interest on which is, in the opinion of counsel of the issuers, exempt from
regular federal and Pennsylvania income taxes. Such securities are traded
primarily in an over-the-counter market. The Fund may invest, without percentage
limitations, in certain private activity bonds, the interest on which is treated
as a preference item for purposes of the alternative minimum tax.

Under the Investment Company Act of 1940, as amended (1940 Act), the
identification of the issuer of municipal bonds or notes depends on the terms
and conditions of the obligation. If the assets and revenues of an agency,
authority, instrumentality or other political subdivision are separate from
those of the government creating the subdivision and the obligation is backed
only by the assets and revenues of the subdivision, such subdivision is regarded
as the sole issuer. Similarly, in the case of an industrial development revenue
bond or pollution control revenue bond, if only the assets and revenues of the
non-governmental user back the bond, the non-governmental


                                       2
<PAGE>


user is regarded as the sole issuer. If in either case the creating government
or another entity guarantees an obligation, the security is treated as an issue
of such guarantor to the extent of the value of the guarantee.

The Fund invests principally in long-term municipal bonds. Municipal bonds are
issued to obtain funds for various public purposes, including the construction
of a wide range of public facilities such as airports, bridges, highways,
housing, hospitals, mass transportation, schools, streets, water and sewer
works, and gas and electric utilities. Municipal bonds also may be issued in
connection with the refunding of outstanding obligations, obtaining funds to
lend to other public institutions, and for general operating expenses.
Industrial development bonds are issued by or on behalf of public authorities to
obtain funds to provide various privately-operated facilities for business and
manufacturing, housing, sports, pollution control, and for airport, mass
transit, port and parking facilities.

The two principal classifications of municipal bonds are "general obligation"
and "revenue." General obligation bonds are secured by the issuer's pledge of
its full faith, credit and taxing power for the payment of principal and
interest. Revenue bonds are payable only from the revenues derived from a
particular facility or class of facilities or, in some cases, from the proceeds
of a special excise tax or other specific revenue source. Although industrial
development bonds (IDBs) are issued by municipal authorities, they are generally
secured by the revenues derived from payments of the industrial user. The
payment of principal and interest on IDBs is dependent solely on the ability of
the user of the facilities financed by the bonds to meet its financial
obligations and the pledge, if any, of real and personal property so financed as
security for such payment.


On September 16, 1999, the Board of Trustees eliminated the non-fundamental
policy that prohibited the Fund, with respect to 75% of the value of its assets,
from purchasing any revenue bonds if, as a result of such purchase, more than 5%
of the Fund's assets would be invested in the revenue bonds of a single issuer.
However, the Fund remains subject to a fundamental policy which prohibits the
Fund with respect to 50% of the value of its total assets, from purchasing the
securities of any one issuer if, as a result of such purchase, more than 5% of
the Fund's total assets (at market value) would be invested in the securities of
a single issuer (except for obligations issued or guaranteed by the US
Government or its agencies or instrumentalities).




The Fund may also invest in municipal notes. Municipal notes generally are used
to provide for short-term capital needs and generally have maturities of five
years or less. Municipal Notes include:

     1. Tax Anticipation Notes and Revenue Anticipation Notes. Tax anticipation
notes and revenue anticipation notes are issued to finance short-term working
capital needs of political subdivisions. Generally, tax anticipation notes are
issued in anticipation of various tax revenues, such as income, sales and real
property taxes, and are payable from these specific future taxes. Revenue
anticipation notes are issued in expectation of receipt of other kinds of
revenue, such as grant or project revenues. Usually political subdivisions issue
notes combining the qualities of both tax and revenue anticipation notes.

     2. Bond Anticipation Notes. Bond anticipation notes are issued to provide
interim financing until long-term financing can be arranged. In most cases, the
long-term bonds then provide the money for the repayment of the notes.

Issues of municipal Commercial Paper typically represent short-term, unsecured,
negotiable promissory notes. In most cases, municipal commercial paper is backed
by letters of credit, lending agreements, note repurchase agreements or other
credit facility agreements offered by banks or other institutions.

Variable and Floating Rate Securities. The Fund may purchase floating or
variable rate securities, including participation interests therein. Investments
in floating or variable rate provide that the rate of interest is either pegged
to money market rates or set as a specific percentage of a designated base rate,
such as rates on Treasury Bonds or Treasury Bills or the prime rate of a major
commercial bank. A floating rate or variable rate security generally provides
that the Fund can demand payment of the obligation on short notice (daily or
weekly, depending on the terms of the obligation) at an amount equal to par
(face value) plus accrued interest. In unusual circumstances, the amount
received may be more or less than the amount the Fund paid for the securities.


                                       3
<PAGE>



Variable rate securities provide for a specified periodic adjustment in the
interest rate, while floating rate securities have an interest rate which
changes whenever there is a change in the designated base interest rate.
Frequently such securities are secured by letters of credit or other credit
support arrangements provided by banks. The quality of the underlying creditor
or of the bank or issuer, as the case may be, must be equivalent to the
standards set forth with respect to taxable investments below.

The maturity of variable or floating rate obligations (including participation
interests therein) is deemed to be the longer of (1) the notice period required
before the Fund is entitled to receive payment of the obligation upon demand, or
(2) the period remaining until the obligation's next interest rate adjustment.
If the Fund does not redeem the obligation through the demand feature, the
obligation will mature on a specific date, which may range up to thirty years
from the date of its issuance.

Participation Interests. From time to time, the Fund may purchase from banks,
participation interests in all or part of specific holdings of municipal
securities. A participation interest gives the Fund an undivided interest in the
municipal security in the proportion that the Fund's participation interest
bears to the total principal amount of the municipal security and provides the
demand repurchase feature described above. Participations are frequently backed
by an irrevocable letter of credit or guarantee of a bank that the Fund has
determined meets its prescribed quality standards. The Fund has the right to
sell the instrument back to the bank and draw on the letter of credit on demand,
on short notice, for all or any part of the Fund's participation interest in the
municipal security, plus accrued interest. The Fund intends to exercise the
demand under the letter of credit only (1) upon a default under the terms of the
documents of the municipal security, (2) as needed to provide liquidity in order
to meet redemptions, or (3) to maintain a high quality investment portfolio.
Banks will retain a service and letter of credit fee and a fee for issuing
repurchase commitments in an amount equal to the excess of the interest paid on
the municipal securities over the negotiated yield at which the instruments are
purchased by the Fund. Participation interests will be purchased only if, in the
opinion of counsel, interest income on such interests will be tax-exempt when
distributed as dividends to shareholders of the Fund. The Fund currently does
not purchase participation interests and has no current intention of doing so.

When-Issued Securities. The Fund may purchase municipal securities on a
"when-issued" basis, which means that delivery of and payment for securities
normally take place in less than 45 days after the date of the buyer's purchase
commitment. The payment obligation and the interest rate on when-issued
securities are each fixed at the time the purchase commitment is made, although
no interest accrues to a purchaser prior to the settlement of the purchase of
the securities. As a result, the yields obtained and the market value of such
securities may be higher or lower on the date the securities are actually
delivered to the buyer. The Fund will generally purchase a municipal security
sold on a when-issued basis with the intention of actually acquiring the
securities on the settlement date.

A separate account consisting of cash or high-grade liquid debt securities equal
to the amount of outstanding purchase commitments is established with the Fund's
custodian in connection with any purchase of when-issued securities. The account
is marked to market daily, with additional cash or liquid high-grade debt
securities added when necessary. The Fund meets its respective obligation to
purchase when-issued securities from outstanding cash balances, sale of other
securities or, although it would not normally expect to do so, from the sale of
the when-issued securities themselves (which may have a market value greater or
lesser than the Fund's payment obligations).

Municipal securities purchased on a when-issued basis and the other securities
held in the Fund are subject to changes in market value based upon the public's
perception of the creditworthiness of the issuer and changes, real or
anticipated, in the level of interest rates (which will generally result in
similar changes in value, i.e., both experiencing appreciation when interest
rates decline and depreciation when interest rates rise). Therefore, to the
extent the Fund remains substantially fully invested at the same time that it
has purchased securities on a when-issued basis, there will be a greater
possibility that the market value of the Fund's assets will vary. Purchasing a
municipal security on a when-issued basis can involve a risk that the yields
available in the market when the delivery takes place may be higher than those
obtained on the security purchased on a when-issued basis.


                                       4
<PAGE>


Standby Commitments. The Fund is authorized to acquire standby commitments
issued by banks with respect to securities they hold, although the Fund has no
present intention of investing any assets in standby commitments. These
commitments would obligate the seller of the standby commitment to repurchase,
at the Fund's option, specified securities at a specified price.


The price which the Fund would pay for municipal securities with standby
commitments generally would be higher than the price which otherwise would be
paid for the municipal securities alone, and the Fund would use standby
commitments solely to facilitate portfolio liquidity. The standby commitment
generally is for a shorter term than the maturity of the security and does not
restrict in any way the Fund's right to dispose of or retain the security. There
is a risk that the seller of a standby commitment may not be able to repurchase
the security upon the exercise of the right to resell by the Fund. To minimize
such risks, the Fund is presently authorized to acquire standby commitments
solely from banks deemed creditworthy. The Board of Trustees may, in the future,
consider whether the Fund should be permitted to acquire standby commitments
from dealers. Prior to investing in standby commitments of dealers, the Fund, if
it deems necessary based upon the advice of counsel, will apply to the
Securities and Exchange Commission (SEC) for an exemptive order relating to such
commitments and the valuation thereof. There can be no assurance that the
SEC will issue such an order.

Standby commitments with respect to portfolio securities of the Fund with
maturities of less than 60 days which are separate from the underlying portfolio
securities are not assigned a value. The cost of any such standby commitments is
carried as an unrealized loss from the time of purchase until it is exercised or
expires. Standby commitments with respect to portfolio securities of the Fund
with maturities of 60 days or more which are separate from the underlying
portfolio securities are valued at fair value as determined in accordance with
procedures established by the Board of Trustees. The Board of Trustees would, in
connection with the determination of value of such a standby commitment,
consider, among other factors, the creditworthiness of the writer of the standby
commitment, the duration of the standby commitment, the dates on which or the
periods during which the standby commitment may be exercised and the applicable
rules and regulations of the SEC.


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
Trustees, 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 Trustees 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 borrow money only from banks and only for temporary or
emergency purposes (but not for the purchase of portfolio securities) in an
amount not in excess of 10% of the value of its total assets at the time the
borrowing is made (not including the amount borrowed). Permitted borrowings may
be secured or unsecured. The Fund will not purchase additional portfolio
securities if the Fund has outstanding borrowings in excess of 5% of the value
of its total assets.


Taxable Investments. Under normal market conditions, the Fund will attempt to
invest 100% and as a matter of fundamental policy will invest at least 80% of
the value of its net assets in securities the interest on which is exempt from
regular federal income tax and Pennsylvania personal income tax. Such interest,
however, may be subject to the federal alternative minimum tax.


Under normal market conditions, temporary investments in taxable securities will
be limited as a matter of fundamental policy to 20% of the value of the Fund's
net assets.

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


                                       5
<PAGE>


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 outstanding voting securities of the Fund. Under these policies,
the Fund may not:

- -    Borrow money, except from banks for temporary purposes (such as meeting
     redemption requests or for extraordinary or emergency purposes but not for
     the purchase of portfolio securities) in an amount not to exceed 10% of the
     value of its total assets at the time the borrowing is made (not including
     the amount borrowed). The Fund will not purchase additional portfolio
     securities if the Fund has outstanding borrowings in excess of 5% of the
     value of its total assets;

- -    Mortgage or pledge any of its assets, except to secure permitted borrowings
     noted above;

- -    Invest more than 25% of total assets at market value in any one industry;
     except that municipal securities and securities of the US Government, its
     agencies and instrumentalities are not considered an industry for purposes
     of this limitation.

- -    As to 50% of the value of its total assets, purchase securities of any
     issuer if immediately thereafter more than 5% of total assets at market
     value would be invested in the securities of any issuer (except that this
     limitation does not apply to obligations issued or guaranteed as to
     principal and interest by the US Government or its agencies or
     instrumentalities);


- -    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 its deferred
     compensation plan for trustees;


- -    Purchase or hold any real estate, except that 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,
     trustees 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;

- -    Write or purchase put, call, straddle or spread options; purchase
     securities on margin or sell "short"; or underwrite the securities of other
     issuers, except that the Fund may be deemed an underwriter in connection
     with the purchase and sale of portfolio securities;

- -    Purchase or sell commodities or commodity contracts including futures
     contracts; or

- -    Make loans, except to the extent that the purchase of notes, bonds or other
     evidences of indebtedness or deposits with banks may be considered loans.

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

Under the 1940 Act, a "vote of a majority of the outstanding voting securities"
of the Fund means the affirmative vote of the lesser of (1) more than 50% of the
outstanding shares of the Fund or (2) 67% or more of the shares of the Fund
present at a shareholders' meeting if more than 50% of the outstanding shares of
the Fund are represented at the meeting in person or by proxy.

Temporary Defensive Position

In abnormal market conditions, if, in the judgment of the Fund, municipal
securities satisfying the Fund's investment objectives may not be purchased, the
Fund may, for defensive purposes, temporarily invest in instruments the interest
on which is exempt from regular federal income taxes, but not state personal
income


                                       6
<PAGE>


taxes. Such securities would include those described under "Pennsylvania
Municipal Securities" above that would otherwise meet the Fund's objectives.

Also, in abnormal market conditions, the Fund may invest on a temporary basis in
fixed-income securities, the interest on which is subject to federal, state, or
local income taxes, pending the investment or reinvestment in municipal
securities of the proceeds of sales of shares or sales of portfolio securities,
in order to avoid the necessity of liquidating portfolio investments to meet
redemptions of shares by investors or where market conditions due to rising
interest rates or other adverse factors warrant temporary investing for
defensive purposes. Investments in taxable securities will be substantially in
securities issued or guaranteed by the United States Government (such as bills,
notes and bonds), its agencies, instrumentalities or authorities; highly-rated
corporate debt securities (rated Aa3 or better by Moody's or AA- or better by
S&P); prime commercial paper (rated P-1 by Moody's or A-1+/A-1 by S&P); and
certificates of deposit 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 50 largest foreign banks in terms of assets with branches or
agencies in the United States. Investments in certificates of deposit of foreign
banks and foreign branches of US banks may involve certain risks, including
different regulation, use of different accounting procedures, political or other
economic developments, exchange controls, or possible seizure or nationalization
of foreign deposits.

Portfolio Turnover

Portfolio transactions will be undertaken principally to accomplish the Fund's
objective in relation to anticipated movements in the general level of interest
rates but the Fund may also engage in short-term trading consistent with its
objective. Securities may be sold in anticipation of a market decline (a rise in
interest rates) or purchased in anticipation of a market rise (a decline in
interest rates) and later sold. In addition, a security may be sold and another
purchased at approximately the same time to take advantage of what the
investment manager believes to be a temporary disparity in the normal yield
relationship between the two securities.


The Fund's portfolio turnover rate is calculated by dividing the lesser of
purchases or sales of portfolio securities for the fiscal year by the monthly
average of the value of the portfolio securities owned during the 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 fiscal years ended September 30, 1999 and 1998, were 7.80% and
13.05%, respectively. The fluctuation in portfolio turnover rates of the Fund
resulted from conditions in the Pennsylvania municipal market. The Fund's
portfolio turnover rate will not be a limiting factor when the Fund deems it
desirable to sell or purchase securities.


                             Management of the Fund

Board of Trustees

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

Management Information

Trustees and officers of the Fund, together with information as to their
principal business occupations during the past five years, are shown below. Each
Trustee 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.


                                       7
<PAGE>

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

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

     Richard R. Schmaltz*       Trustee and Member        Director and Managing Director, Director of Investments, J. &
             (59)               of the Executive          W. Seligman & Co. Incorporated; Director or Trustee, the
                                Committee                 Seligman Group of investment companies (except Seligman Cash
                                                          Management, Inc.); 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                  Trustee           Dean, Fletcher School of Law and Diplomacy at Tufts University;
             (70)                                         Director or Trustee, the Seligman Group of investment
       Tufts University                                   companies; Chairman Emeritus, American Council on Germany; a
       Packard Avenue,                                    Governor of the Center for Creative Leadership; Director;
       Medford, MA 02155                                  Raytheon Co., electronics; National Defense University; and the
                                                          Institute for Defense Analysis.  Formerly, Director, USLIFE
                                                          Corporation, life insurance; 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.

       Alice S. Ilchman                 Trustee           Retired President, Sarah Lawrence College; Director or Trustee,
             (64)                                         the Seligman Group of investment companies; Trustee, the
      18 Highland Circle                                  Committee for Economic Development; and Chairman, The
     Bronxville, NY 10708                                 Rockefeller Foundation, charitable foundation.  Formerly,
                                                          Trustee, The Markle Foundation, philanthropic organization; and
                                                          Director, New York Telephone Company and International Research
                                                          and Exchange Board, intellectual exchanges.
</TABLE>



                                       8
<PAGE>


<TABLE>
<CAPTION>
            Name,                                                                    Principal
          (Age) and                 Position(s) Held                            Occupation(s) During
           Address                     with Fund                                    Past 5 Years
           -------                     ---------                                    ------------
<S>                             <C>                       <C>
      Frank A. McPherson                Trustee           Retired Chairman and Chief Executive Officer of Kerr-McGee
             (66)                                         Corporation; Director or Trustee, the Seligman Group of
  2601 Northwest Expressway,                              investment companies; Director, Kimberly-Clark Corporation,
          Suite 805E                                      consumer products; Bank of Oklahoma Holding Company; Baptist
   Oklahoma City, OK  73112                               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                   Trustee           Retired Chairman and Senior Partner, Sullivan & Cromwell, law
             (70)                                         firm; Director or Trustee, the Seligman Group of investment
      125 Broad Street,                                   companies; Director, Commonwealth Industries, Inc.,
      New York, NY 10004                                  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, 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                  Trustee           Attorney; Director or Trustee, the Seligman Group of investment
             (57)                                         companies; Trustee, The Geraldine R. Dodge Foundation,
         P.O. Box 449                                     charitable foundation.  Formerly, Chairman of the Board of
     Gladstone, NJ 07934                                  Trustees of St. George's School (Newport, RI) and Director, the
                                                          National Association of Independent Schools (Washington, DC).

       James C. Pitney                  Trustee           Retired Partner, Pitney, Hardin, Kipp & Szuch, law firm;
             (73)                                         Director or Trustee, the Seligman Group of investment
Park Avenue at Morris County,                             companies.  Formerly, Director, Public Service Enterprise
  P.O. Box 1945, Morristown,                              Group, public utility.
           NJ 07962


       James Q. Riordan                 Trustee           Director or Trustee, the Seligman Group of investment
             (72)                                         companies; Director, The Houston Exploration Company, oil
      675 Third Avenue,                                   exploration; The Brooklyn Museum, KeySpan Energy Corporation;
          Suite 3004                                      and Public Broadcasting Service; and Trustee, the Committee for
      New York, NY 10017                                  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                 Trustee           Retired Vice President, Pfizer Inc., pharmaceuticals; Director
             (67)                                         or Trustee, the Seligman Group of investment companies.
     96 Evergreen Avenue,                                 Formerly, Director, USLIFE Corporation, life insurer.
        Rye, NY 10580

</TABLE>


                                       9
<PAGE>


<TABLE>
<CAPTION>
            Name,                                                                    Principal
          (Age) and                 Position(s) Held                            Occupation(s) During
           Address                     with Fund                                    Past 5 Years
           -------                     ---------                                    ------------
<S>                             <C>                       <C>

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


        Thomas G. Moles           Vice President and      Director and Managing Director, J. & W. Seligman & Co.
             (57)                 Senior Portfolio        Incorporated; Vice President and Senior Portfolio Manager,
                                  Manager                 three other open-end investment companies in the Seligman Group
                                                          of investment companies; President and Senior Portfolio
                                                          Manager, Seligman Quality Municipal Fund, Inc. and Seligman
                                                          Select Municipal Fund, Inc., closed-end investment companies;
                                                          and Director, Seligman Advisors, Inc. and Seligman Services,
                                                          Inc.

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

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

        Thomas G. Rose                 Treasurer          Treasurer, the Seligman Group of investment companies and
             (42)                                         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.

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


                                       10
<PAGE>



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 Trustees (1)(2)
       ------------------                            -------------       -------------           ------------------
<S>                                                     <C>                  <C>                     <C>
William C. Morris, Trustee and Chairman                  N/A                 N/A                         N/A
Brian T. Zino, Trustee and President                     N/A                 N/A                         N/A
Richard R. Schmaltz, Trustee                             N/A                 N/A                         N/A
John R. Galvin, Trustee                                 $558                 N/A                     $82,000
Alice S. Ilchman, Trustee                                538                 N/A                      80,000
Frank A. McPherson, Trustee                              558                 N/A                      80,000
John E. Merow, Trustee                                   558                 N/A                      80,000
Betsy S. Michel, Trustee                                 558                 N/A                      82,000
James C. Pitney, Trustee                                 518                 N/A                      74,000
James Q. Riordan, Trustee                                538                 N/A                      80,000
Robert L. Shafer, Trustee                                538                 N/A                      80,000
James N. Whitson, Trustee                                538(3)              N/A                      80,000(3)
</TABLE>

- ----------
(1)  For the Fund's fiscal year ended September 30, 1999.
(2)  The Seligman Group of investment companies consists of twenty investment
     companies.
(3)  Deferred.

The Fund has a compensation arrangement under which outside trustees may elect
to defer receiving their fees. The Fund has adopted a deferred compensation plan
under which a trustee 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 certain of the investment
companies advised by J. & W. Seligman & Co. Incorporated (Seligman), as
designated by the trustee. The cost of such fees and earnings is included in
trustees' 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 September 30, 1999 was $12,859.

Messrs. Merow and Pitney no longer defer current compensation; however, they
have accrued deferred compensation in the amounts of $24,503 and $9,119,
respectively, as of September 30, 1999.

The Fund may, but is not obligated to, purchase shares of the other funds in the
Seligman Group of investment companies to hedge its obligations in connection
with the 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 Seligman and
its affiliates. Family members are defined to include lineal descendents and
lineal ancestors, siblings (and their spouses and children) and any company or
organization controlled by any of the foregoing. Such sales also may be made to
employee benefit plans for such persons and to any investment advisory,
custodial, trust or other fiduciary account managed or advised by Seligman or
any affiliate. These 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.


                                       11
<PAGE>



Code of Ethics

Seligman, Seligman Advisors, Inc. (Seligman Advisors), their subsidiaries and
affiliates, and the Seligman Group of investment companies have adopted a Code
of Ethics that sets forth the circumstances under which officers, directors and
employees (collectively, Employees) are permitted to engage in personal
securities transactions. The Code of Ethics proscribes certain practices with
regard to personal securities transactions and personal dealings, provides a
framework for the reporting and monitoring of personal securities transactions
by Seligman's Director of Compliance, and sets forth a procedure of identifying,
for disciplinary action, those individuals who violate the Code of Ethics. The
Code of Ethics prohibits Employees (including all investment team members) from
purchasing or selling any security or an equivalent security that is being
purchased or sold by any client, or where the Employee intends, or knows of
another's intention to purchase or sell the security on behalf of a client. The
Code also prohibits all Employees from acquiring securities in a private
placement or in an initial or secondary public offering unless an exemption has
been obtained from Seligman's Director of Compliance.

The Code of Ethics 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) that the portfolio manager or investment team
manages; (2) each Employee from engaging in short-term trading (a purchase and
sale or vice-versa within 60 days); and (3) each member of an investment team
from engaging in short sales of a security if, at that time, any client managed
by that team has a long position in that security. Any profit realized pursuant
to any of these prohibitions must be disgorged.

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 Employees are also required to disclose all
securities beneficially owned by them upon commencement of employment and at the
end of each calendar year.

A copy of the Code of Ethics is on public file with, and is available upon
request from, the SEC. You can access it through the SEC's Internet site,
http://www.sec.gov.


               Control Persons and Principal Holders of Securities

Control Persons


As of January 7, 2000, there was no person or persons who controlled the Fund,
either through significant ownership of Fund shares or any other means of
control.


Principal Holders


As of January 7, 2000, Merrill Lynch, Pierce, Fenner & Smith Incorporated
(MLPF&S) for the Sole Benefit if Its Customers, Attn. Fund Administration, 4800
Deer Lake Drive East 3rd Floor, Jacksonville, FL 32246, owned of record 14.20%
and 50.05%, respectively, of the then outstanding Class A shares of capital
stock and Class D shares of capital stock of the Fund. As of the same date, the
following entities owned the stated percentages of the Fund's Class C and Class
D shares of capital stock then outstanding:

Class C shares
- --------------

- -- 5.84%       Salomon Smith Barney Inc., For Accounts, 333 West 34th Street,
               3rd Floor, New York, NY 10001.
- -- 41.20%      Prudential Securities Inc FBO Mr. John J. Baldi & Mr. Frances T.
               Baldi Jt Ten, 901 Richmont Street, Scranton, PA 18509-1721.
- -- 52.96%      Paul D. Leedy, 239 North 25th Street, Camp Hill, PA  17011-3611

Class D shares
- --------------

- -- 16.33%      PaineWebber for the Benefit of Dorothy Batava, 51 B Peace Circle,
               New Oxford, PA 17350.



                                       12
<PAGE>


Management Ownership


As of January 7, 2000, Trustees and officers of the Fund as a group owned less
than 1% of the Fund's Class A, Class C and Class D shares of beneficial interest
of the Fund.


                     Investment Advisory and Other Services

Investment Manager


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 C 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.


The Fund pays Seligman a management fee for its services, calculated daily and
payable monthly. The management fee is equal to .50% per annum of the Fund's
average daily net assets. For the fiscal years ended September 30, 1999, 1998
and 1997, the Fund paid Seligman management fees in the amount of $142,802,
$152,373 and $156,173, respectively.


The Fund pays all of its expenses other than those assumed by Seligman,
including brokerage commissions, if any, shareholder services and distribution
fees, fees and expenses of independent attorneys and auditors, taxes and
governmental fees, including fees and expenses of qualifying the Funds and their
shares under federal and state securities laws, cost of stock certificates and
expenses of repurchase or redemption of shares, expenses of printing and
distributing reports, notices and proxy materials to shareholders, expenses of
printing and filing reports and other documents with governmental agencies,
expenses of shareholders' meetings, expenses of corporate data processing and
related services, shareholder record keeping and shareholder account services,
fees and disbursements of transfer agents and custodians, expenses of disbursing
dividends and distributions, fees and expenses of the Trustees of the Fund not
employed by or serving as a Director of Seligman or its affiliates, insurance
premiums and extraordinary expenses such as litigation expenses. These expenses
are allocated between the Funds in a manner determined by the Board of Trustees
to be fair and equitable.

The Management Agreement also 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
Management Agreement, except for willful misfeasance, bad faith, gross
negligence, or reckless disregard of its obligations and duties under the
Management Agreement.

The Fund's Management Agreement was unanimously approved by the Board of
Trustees at a meeting held on October 11, 1988 and was also approved by the
shareholders at a meeting held on December 16, 1988. The Management Agreement
will continue in effect until December 29 of each year if (1) such continuance
is approved annually in the manner required by the 1940 Act (i.e., by a vote of
a majority of the Trustees or of the outstanding voting securities of the Fund
and by a vote of a majority of the Trustees 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 29 of any
year that it does not desire such continuance. The Agreement may be terminated
by the Fund, 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 its Management Agreement if continued use of
the name would cause confusion in the context of Seligman's business.



Principal Underwriter


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.



                                       13
<PAGE>


Those individuals identified above under "Management Information" as trustees 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, subject to the control
of the Board of Trustees, 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 their
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 trustees
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.


Dealer Reallowances

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

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

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

Class C shares:
- ---------------
<TABLE>
<CAPTION>
                                                                                   Regular Dealer
                                     Sales Charge          Sales Charge              Reallowance
                                      as a % of            as a % of Net              as a % of
Amount of Purchase                Offering Price(1)       Amount Invested          Offering Price
- ------------------                -----------------       ---------------          --------------
<S>                                     <C>                    <C>                       <C>
Less than  $100,000                     1.00%                  1.01%                    1.00%
$100,000  -  $249,999                   0.50                   0.50                     0.50
$250,000  -  $1,000,000                   0                      0                        0
</TABLE>

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

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 the fiscal years ended
September 30, 1999, 1998 and 1997, Seligman Services received commissions of
$213, $626 and $752, respectively.



                                       14
<PAGE>


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 C, 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 are allocated between the classes in accordance with a methodology approved
by the Fund's Board of Trustees. The Fund may participate in joint distribution
activities with other Seligman funds, and the expenses of such activities will
be allocated among the applicable funds based on relative sales, in accordance
with a methodology approved by the Board.

Class A
- -------


Under 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. This 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 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
Trustees. 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
fiscal 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 fiscal 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 fiscal year ended
September 30, 1999 was $70,388, equivalent to .25% of the Class A shares'
average daily net assets.


Class C
- -------


Under the 12b-1 Plan, the Fund, with respect to Class C 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 C shares. This fee is used by Seligman Advisors as
follows: During the first year following the sale of Class C shares, a
distribution fee of .75% of the average daily net assets attributable to Class C
shares is used, along with any CDSC proceeds during the first eighteen months,
to (1) reimburse Seligman Advisors for its payment at the time of sale of Class
C shares of a 1.25% 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 C shares, a service fee of up to .25% of the average daily net assets
attributable to such Class C shares is used to reimburse Seligman Advisors for
its prepayment to Service Organizations at the time of sale of Class C shares of
a service fee of .25% of the net asset value of the Class C shares sold (for
shareholder services to be provided to Class C shareholders over the course of
the one year immediately following the sale). The payment of service fees 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-



                                       15
<PAGE>



year period following a sale of Class C shares, the entire 12b-1 fee
attributable to such Class C shares is paid to Service Organizations for
providing continuing shareholder services and distribution assistance in respect
of the Fund. The total amount paid by the Fund to Seligman Advisors in respect
of Class C shares from May 27, 1999 (inception) to September 30, 1999 was $136,
equivalent to 1% per annum of the Class C shares' average daily net assets.


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


As of September 30, 1999, Seligman Advisors has incurred $2,904 of unreimbursed
expenses in respect of the Fund's Class C shares. This amount is equal to 2.03%
of the net assets of Class C shares at September 30, 1999.


If the 12b-1 Plan is terminated in respect of Class C 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 C 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. This fee is used by Seligman Advisors as
follows: During the first year following the sale of Class D shares, a
distribution fee of .75% of the average daily net assets attributable to such
Class D shares is used, along with any CDSC proceeds, to (1) reimburse Seligman
Advisors for its payment at the time of sale of Class D shares of a .75% sales
commission to Service Organizations, and (2) pay for other distribution
expenses, including paying for the preparation of advertising and sales
literature and the printing and distribution of such promotional materials and
prospectuses to prospective investors and other marketing costs of Seligman
Advisors. In addition, during the first year following the sale of Class D
shares, a service fee of up to .25% of the average daily net assets attributable
to such Class D shares is used to reimburse Seligman Advisors for its prepayment
to Service Organizations at the time of sale of Class D shares of a service fee
of .25% of the net asset value of the Class D shares sold (for shareholder
services to be provided to Class D shareholders over the course of the one year
immediately following the sale). The payment of service fees 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 the Fund. The
total amount paid by the Fund to Seligman Advisors in respect of Class D shares
for the fiscal year ended September 30, 1999 was $8,530, equivalent to 1% per
annum of the Class D shares' average daily net assets.


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 fiscal year to be paid from Class D 12b-1 fees received
from the Fund in any other fiscal year; however, in any fiscal year the Fund is
not obligated to pay any 12b-1 fees in excess of the fees described above.


As of September 30, 1999, Seligman Advisors incurred no unreimbursed expenses in
respect of the Fund's Class D shares.


If the 12b-1 Plan is terminated in respect of Class D shares of the Fund, no
amounts (other than amounts accrued but 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 the fiscal year ended
September 30, 1999, were spent on the following activities in the following
amounts:



                                       16
<PAGE>



                                         Class A        Class C*         Class D
                                         -------        --------         -------

Compensation to underwriters               $-0-           $136           $3,045

Compensation to broker/dealers            $70,388         $-0-           $5,485

*    From May 27, 1999 (inception) to September 30, 1999.


The 12b-1 Plan was approved on June 10, 1986 by the Board of Trustees, including
a majority of the Trustees 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 12b-1 Plan or in any agreement related to the 12b-1 Plan
(Qualified Trustees) and was approved by shareholders of the Fund on April 23,
1987. Amendments to the Plan were approved in respect of the Class D shares on
November 18, 1993 by the Trustees, including a majority of the Qualified
Trustees, and became effective with respect to the Class D shares on February 1,
1994. The 12b-1 Plan was approved in respect of Class C shares on May 20, 1999
by the Trustees, including a majority of the Qualified Trustees, and became
effective in respect of the Class C shares on June 1, 1999. 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 Trustees and the Qualified
Trustees, 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 under the terms of the 12b-1 Plan without the approval of a majority of
the outstanding voting securities of the Fund and no material amendment to the
12b-1 Plan may be made except with the approval of a majority of both the
Trustees and the Qualified Trustees in accordance with the applicable provisions
of the 1940 Act and the rules thereunder.

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


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 fiscal
years ended September 30, 1999, 1998 and 1997, Seligman Services received
distribution and service fees of $3,999, $3,759 and $3,276, respectively, from
the Fund pursuant to the 12b-1 Plan.


                    Brokerage Allocation and Other Practices

Brokerage Transactions


For the fiscal years ended September 30, 1999, 1998 and 1997, no brokerage
commissions were paid by 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.

Commissions


For the fiscal years ended September 30, 1999, 1998 and 1997, 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.



                                       17
<PAGE>


Regular Broker-Dealers

During the Fund's fiscal year ended September 30, 1999, the Fund did not acquire
securities of its regular brokers or dealers (as defined in Rule 10b-1 under the
1940 Act) or of its parents.

               Shares of Beneficial Interest and Other Securities

Shares of Beneficial Interest


The Fund is authorized to issue an unlimited number of full and fractional
shares of beneficial interest, par value $.001, in separate series. To date, one
series has been authorized, which shares constitute the interest in the Fund.
The Fund has three classes, designated Class A shares of beneficial interest,
Class C shares of beneficial interest, and Class D shares of beneficial
interest. Each share of the Fund's Class A, Class C, and Class D beneficial
interest 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 Massachusetts
law. Seligman Municipal Series Trust has adopted a multiclass plan pursuant to
Rule 18f-3 under the 1940 Act permitting the issuance and sale of multiple
classes of shares of beneficial interest. In accordance with the Declaration of
Trust, the Board of Trustees may authorize the creation of additional classes of
beneficial interest with such characteristics as are permitted by the multiples
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 trustees. 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 its shares of beneficial
interest.

                   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 under
"Persons Entitled to Reductions") 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 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.


                                       18
<PAGE>


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.

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

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

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

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

Eligible Employee Benefit Plans. The table of sales charges in the Prospectus
applies to sales to "eligible employee benefit plans," except that the Fund may
sell shares at net asset value to "eligible employee benefit plans" which have
at least (1) $500,000 invested in the Seligman Group of mutual funds or (2) 50
eligible employees to whom such plan is made available. Such sales must be made
in connection with a payroll deduction system of plan funding or other systems
acceptable to Seligman Data Corp., the 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. Section 403(b) Plans
sponsored by public educational institutions are not eligible for net asset
value purchases based on the aggregate investment made by the plan or member of
eligible employees.

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 in the following instances:

(1)  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;

(2)  to separate accounts established and maintained by an insurance company
     which are exempt from registration under Section 3(c)(11) of the 1940 Act;

(3)  to registered representatives and employees (and their spouses and minor
     children) of any dealer that has a sales agreement with Seligman Advisors;

(4)  to financial institution trust departments;


                                       19
<PAGE>


(5)  to registered investment advisers exercising discretionary investment
     authority with respect to the purchase of Fund shares;

(6)  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;

(7)  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;

(8)  to other investment companies in the Seligman Group in connection with a
     deferred fee arrangement for outside directors;

(9)  to certain "eligible employee benefit plans" as discussed above;

(10) to those partners and employees of outside counsel to the Fund or its
     directors or trustees who regularly provide advice and services to the
     Fund, to other funds managed by Seligman, or to their directors or
     trustees; and

(11) in connection with sales pursuant to a 401(k) alliance program which has an
     agreement with Seligman Advisors.

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.

Class C
- -------

Class C shares may be purchased at a price equal to the next determined net
asset value, plus an initial sales charge. Purchases of Class C shares by a
"single person" may be eligible for the reductions in initial sales charges
described above for Class A shares. Class C shares are subject to a CDSC of 1%
if the shares are redeemed within eighteen months of purchase, charged as a
percentage of the current net asset value or the original purchase price,
whichever is less.

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 C and Class D shareholders who reinvest both their
dividends and capital gain distributions to purchase additional shares of the
Fund may use the Systematic Withdrawal Plan to withdraw up to 10% 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 C shares 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;


                                       20
<PAGE>


(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
     Trustees 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 C 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.

Fund Reorganizations

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

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

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 and Class C
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 C shares 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


                                       21
<PAGE>


shares. It is expected, however, that the net asset value per share of the two
classes will tend to converge immediately after the recording of dividends,
which will differ by approximately the amount of the distribution and other
class expenses accrual differential between the classes.

The securities in which the Fund invests are traded primarily in the
over-the-counter market. Municipal securities and other short-term holdings
maturing in more than 60 days are valued on the basis of quotations provided by
an independent pricing service, approved by the Trustees, which uses information
with respect to transactions in bonds, quotations from bond dealers, market
transactions in comparable securities and various relationships between
securities in determining value. In the absence of such quotations, fair value
will be determined in accordance with procedures approved by the Trustees.
Short-term holdings having remaining maturities of 60 days or less are generally
valued at amortized cost.

Generally, trading in certain securities such as municipal securities, corporate
bonds, US Government securities, and money market instruments is substantially
completed each day at various times prior to the close of the NYSE. The values
of such securities used in determining the net asset value of a Fund's shares
are computed as of such times.


Specimen Price Make-Up

Under the current distribution arrangements between the Fund and Seligman
Advisors, Class A shares and Class C shares are sold with a maximum initial
sales charge of 4.75% and 1.00%(1), respectively, and Class D shares are sold at
NAV(2). Using each Class's NAV at September 30, 1999, the maximum offering price
of the Fund's shares is as follows:

Class A
- -------
     Net asset value per share........................................  $7.49

     Maximum sales charge (4.75% of offering price)...................    .37
                                                                        -----

     Offering price to public.........................................  $7.86
                                                                        =====

Class C
- -------
     Net asset value per share........................................  $7.49

     Maximum sales charge (1.00% of offering price(1))................    .08
                                                                        -----

     Offering price to public.........................................  $7.57
                                                                        =====

Class D
- -------
     Net asset value and offering price per share(2) .................  $7.49
                                                                        =====

- ----------
(1)  In addition to the front-end sales charge of 1.00%, Class C shares are
     subject to a 1% CDSC if you redeem your shares within 18 months of
     purchase.

(2)  Class D shares are also subject to a 1% CDSC if you redeem your shares
     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 SEC. 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


                                       22
<PAGE>


shareholders, provided that at least 90% of its net investment income and net
short-term capital gains are distributed to shareholders each year.

Qualification as a regulated investment company under the Internal Revenue Code
requires among other things, that (1) at least 90% of the annual gross income of
the Fund be derived from dividends, interest, payments with respect to
securities loans and gains from the sale or other disposition of stocks,
securities or currencies, or other income (including but not limited to gains
from options, futures, or forward contracts) derived with respect to its
business of investing in such stocks, securities or currencies; (2) and the Fund
diversify its holdings so that, at the end of each quarter of the taxable year,
(i) at least 50% of the market value of the Fund's assets is represented by
cash, US Government securities and other securities limited in respect of any
one issuer to an amount not greater than 5% of the Fund's assets and 10% of the
outstanding voting securities of such issuer, and (ii) not more than 25% of the
value of its assets is invested in the securities of any one issuer (other than
US Government securities).

Federal Income Taxes

If, at the end of each quarter of its taxable year, at least 50% of the Fund's
total assets is invested in obligations exempt from regular federal income tax,
the Fund will be eligible to pay dividends that are excludable by shareholders
from gross income for regular federal income tax purposes. The total amount of
such exempt interest dividends paid by the Fund cannot exceed the amount of
federally tax-exempt interest received by the Fund during the year less any
expenses allocable to the Fund.

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, except that the portion of net
capital gains representing accrued market discount on tax-exempt obligations
acquired after April 30, 1993 will be taxable as ordinary income. Individual
shareholders 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. Net capital gain of a corporate
shareholder is taxed at the same rate as ordinary income. Distributions from the
Fund's other investment income (other than exempt interest dividends) or from
net realized short-term gain will taxable to shareholders as ordinary income,
whether received in cash or invested in additional shares. Distributions
generally will not be 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.

Interest on indebtedness incurred or continued to purchase or carry shares of
the Fund will not be deductible for federal income tax purposes to the extent
that the Fund's distributions are exempt from federal income tax.

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.

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.



                                       23
<PAGE>


Shareholders are urged to consult their tax advisors concerning the effect of
federal income taxes in their individual circumstances. In particular, persons
who may be "substantial users" (or "related person" of substantial users) of
facilities financed by industrial development bonds or private activity bonds
should consult the tax advisors before purchasing shares of the Fund.

Pennsylvania Taxes


In the opinion of Ballard Spahr Andrews & Ingersoll, LLP, Pennsylvania tax
counsel to the Pennsylvania Fund, individual shareholders of the Pennsylvania
Fund who are subject to the such tax will not be subject to Pennsylvania
personal income tax on distributions from the Pennsylvania Fund to the extent
that such distributions are attributable to interest paid on Pennsylvania
Municipal Securities or US Government obligations.

Individual shareholders of the Pennsylvania Fund who are Philadelphia resident
individuals and subject to the Philadelphia school district investment income
tax will not be subject to such tax on distributions from the Pennsylvania Fund
to the extent that such distributions are attributable to interest paid on
Pennsylvania Municipal Securities or US Government obligations.

Corporate shareholders of the Pennsylvania Fund who are subject to the
Pennsylvania corporate net income tax will not be subject to such tax on
distributions from the Pennsylvania Fund that qualify as exempt-interest
dividends for federal income tax purposes or are derived from interest on US
Government obligations.

If a shareholder of the Pennsylvania Fund is a business subject to the
Pennsylvania capital stock/franchise tax, the value of shares of the
Pennsylvania Fund held by such shareholder and income derived from the ownership
of such shares may be taken into account in determining the "capital stock
value" of such shareholder.

Distributions to shareholders from gains realized by the Pennsylvania Fund from
the disposition (whether by sale, exchange, redemption or payment at maturity)
of Pennsylvania Municipal Securities or US Government obligations issued on or
after February 1, 1994 are taxable under the Pennsylvania personal income tax
and corporate net income tax. With respect to obligations issued before February
1, 1994, gains distributed to shareholders are arguably exempt from the
above-referenced taxes, but the law does not so clearly provide. Any
distributions to shareholders of the Pennsylvania Fund from gains realized on
the disposition of Pennsylvania Fund assets held for more than six months are
not subject to the Philadelphia school district investment income tax.

Due to the pendency of litigation involving the constitutionality of personal
property taxes heretofore in effect, none are currently imposed in Pennsylvania.
In the event enforcement of the personal property tax is resumed under current
law, shares of the Pennsylvania Fund are not subject to any of the personal
property taxes to the extent of that proportion of the Pennsylvania Fund
represented by Pennsylvania Municipal Securities or US Government obligations.
The taxes referred to above include the county personal property tax, and the
additional personal property taxes imposed on Pittsburgh residents by the School
District of Pittsburge, as well as, by the City of Pittsburgh. Shares of the
Pennsylvania Fund may be taxable under Pennsylvania inheritance and estate
taxes.

Shareholders will receive an annual Statement of Account and information
regarding the federal and Pennsylvania income tax status of all distributions
made during the year. Information will also be provided to individual
Pennsylvania shareholders regarding the portion of the value of their shares, if
any, subject to Pennsylvania personal property tax.

Prospective investors should be aware that an investment in the Pennsylvania
Fund may not be suitable for persons who are not residents of the Commonwealth
of Pennsylvania or who do not receive income subject to the various income taxes
of the Commonwealth of Pennsylvania and its political subdivisions.

The foregoing is a general, abbreviated summary of certain provisions of
Pennsylvania statutes and administrative interpretations presently in effect
governing the taxation of shareholders of the Pennsylvania Fund. These
provisions are subject to change by legislative or administrative action, and
any such change may be retroactive with respect to Pennsylvania Fund
transactions. Shareholders are advised to consult with their own tax advisers
for more detailed information concerning Pennsylvania tax matters.



                                       24
<PAGE>


                                  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 shares of beneficial interest, Seligman Advisors allows
reallowances to all dealers on sales of Class A and Class C shares, as set forth
above under "Dealer Reallowances." Seligman Advisors retains the balance of
sales charges and any CDSCs paid by investors.

Total initial sales charges paid by shareholders of Class A and Class C shares
of the Fund for the fiscal year ended September 30, 1999, and of Class A shares
of the Fund for the fiscal years ended September 30, 1998 and 1997, are shown
below. No Class C shares were issued or outstanding for the fiscal years ended
September 30, 1998 and 1997. Also shown are the amounts of the Class A and Class
C sales charges that were retained by Seligman Advisors for the same periods:

                 Total Sales Charges Paid by     Amount of Class A and Class C
                Shareholders on Class A and        Sales Charges Retained by
Fiscal Year            Class C Shares                  Seligman Advisors
- -----------            --------------                  -----------------
   1999                    $21,778                          $2,255
   1998                     24,839                           2,928
   1997                     28,924                           3,421


Compensation


Seligman Advisors, which is an affiliated person of Seligman, which is an
affiliate person of the Fund, received the following commissions and other
compensation from the Fund during the fiscal year ended September 30, 1999:

  Net Underwriting            Compensation on
    Discounts and             Redemptions and
     Commissions                Repurchases
(Class A and Class C         (CDSC on Class A,
    Sales Charges           Class C and Class D     Brokerage        Other
      Retained               Shares Retained)      Commissions   Compensation
      --------               ----------------      -----------   ------------
       $2,255                       $6                 $-0-          $-0-


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%


                                       25
<PAGE>

of sales from $2 million up to but not including $3 million; .50% of sales from
$3 million up to but not including $5 million; and .25% of sales from $5 million
and above.

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

                         Calculation of Performance Data

Class A
- -------


The annualized yield for the 30-day period ended September 30, 1999 for the
Fund's Class A shares was 4.15%. The annualized yield was computed by dividing
the Fund's net investment income per share earned during this 30-day period by
the maximum offering price per share (i.e., the net asset value plus the maximum
sales load of 4.75% of the net amount invested) on September 30, 1999, which was
the last day of this period. The average number of Class A shares of the Fund
was 3,352,235, which was the average daily number of shares outstanding during
the 30-day period that were eligible to receive dividends. Income was computed
by totaling the interest earned on all debt obligations during the 30-day period
and subtracting from that amount the total of all recurring expenses incurred
during the period. The 30-day yield was then annualized on a bond-equivalent
basis assuming semi-annual reinvestment and compounding of net investment
income.

The tax equivalent annualized yield for the 30-day period ended September 30,
1999 for the Fund's Class A shares was 7.07%. The tax equivalent annualized
yield was computed by first computing the annualized yield as discussed above.
Then the portion of the yield attributable to securities the income of which was
exempt for federal and state income tax purposes was determined. This portion of
the yield was then divided by one minus 41.29% (which assumes the maximum
combined federal and state income tax rate for individual taxpayers that are
subject to Pennsylvania income tax. Then the small portion of the yield
attributable to securities the income of which was exempt only for federal
income tax purposes was determined. This portion of the yield was then divided
by one minus 39.6% (39.6% being the assumed maximum federal income tax rate for
individual taxpayers). These two calculations were then added to the portion of
the Class A shares' yield, if any, that was attributable to securities the
income of which was not tax-exempt.

The average annual total return for the Fund's Class A shares for the one-year
period ended September 30, 1999 was (7.96)%. The average annual total return for
the Fund's Class A shares for the five-year period ended September 30, 1999 was
5.01%. The average annual total return for the Fund's Class A shares for the
ten-year period ended September 30, 1999 was 6.11%. These returns were computed
by assuming a hypothetical initial payment of $1,000 in Class A shares of the
Fund. From this $1,000, the maximum sales load of $47.50 (4.75% of the public
offering price) was deducted. It was then assumed that all of the dividends and
distributions by the Fund's Class A shares over the relevant time period were
reinvested. It was then assumed that at the end of the one-, five-, and ten-year
periods of the Fund, the entire amount was redeemed. The average annual total
return was then calculated by determining the annual rate required for the
initial payment to grow to the amount which would have been received upon
redemption (i.e., the average annual compound rate of return).


Class C
- -------


The annualized yield for the 30-day period ended September 30, 1999 for the
Fund's Class C shares was 3.56%. The annualized yield was computed as discussed
above for Class A shares by dividing the Fund's net investment income per share
earned during this 30-day period by the maximum offering price per share (i.e.,
the net asset value plus the maximum sales load of 1.00% of the net amount
invested) on September 30, 1999. The average


                                       26
<PAGE>



number of Class C shares of the Fund was 10,230, which was the average daily
number of shares outstanding during the 30-day period that were eligible to
receive dividends. Income was computed by totaling the interest earned on all
debt obligations during the 30-day period and subtracting from that amount the
total of all recurring expenses incurred during the period. The 30-day yield was
then annualized on a bond-equivalent basis assuming semi-annual reinvestment and
compounding of net investment income.

The tax equivalent annualized yield for the 30-day period ended September 30,
1999 for the Fund's Class C shares was 6.06%. The tax equivalent annualized
yield was computed by first computing the annualized yield as discussed above
for Class A shares. Then the portion of the yield attributable to securities the
income of which was exempt for federal and state income tax purposes was
determined. This portion of the yield was then divided by one minus 41.29%
(which assumes the maximum combined federal and state income tax rate for
individual taxpayers that are subject to Pennsylvania income tax. Then the small
portion of the yield attributable to securities the income of which was exempt
only for federal income tax purposes was determined. This portion of the yield
was then divided by one minus 39.6% (39.6% being the assumed maximum federal
income tax rate for individual taxpayers). These two calculations were then
added to the portion of the Class C shares' yield, if any, that was attributable
to securities the income of which was not tax-exempt.

The total return for the Fund's Class C shares for the period from May 27, 1999
(inception) to September 30, 1999 was (5.74)%. This return was computed by
assuming a hypothetical initial payment of $1,000 in Class C shares of the Fund.
From this $1,000, the maximum sales load of $10.00 (1.00% of the public offering
price) was deducted. It was then assumed that all of the dividends and
distributions by the Fund's Class C shares over the period were reinvested. It
was then assumed that at the end of the period, the entire amount was redeemed,
subtracting the 1% CDSC, if applicable.


Class D
- -------


The annualized yield for the 30-day period ended September 30, 1999 for the
Fund's Class D shares was 3.60%. The annualized yield was computed as discussed
above for Class A shares by dividing the Fund's net investment income per share
earned during this 30-day period by the maximum offering price per share (i.e.,
the net asset value) on September 30, 1999, which was the last day of this
period. The average number of Class D shares of the Fund was 115,589, which was
the average daily number of shares outstanding during the 30-day period that
were eligible to receive dividends. Income was computed by totaling the interest
earned on all debt obligations during the 30-day period and subtracting from
that amount the total of all recurring expenses incurred during the period. The
30-day yield was then annualized on a bond-equivalent basis assuming semi-annual
reinvestment and compounding of net investment income.

The tax equivalent annualized yield for the 30-day period ended September 30,
1999 for the Fund's Class D shares was 6.13%. The tax equivalent annualized
yield was computed as discussed above for Class A shares.

The average annual total return for the Fund's Class D shares for the one-year
period ended September 30, 1999 was (4.90)%. The average annual total return for
the Fund's Class D shares for the five-year period ended September 30, 1999 was
5.23%. The average annual total return for the Fund's Class D shares for the
period from February 1, 1994 (inception) through September 30, 1999 was 3.17%.
These returns were computed by assuming a hypothetical initial payment of $1,000
in Class D shares of the Fund and that all of the dividends and distributions by
the Fund's Class D shares over the relevant time periods were reinvested. It was
then assumed that at the end of the one- and five-year periods and the period
since inception of the Fund, the entire amount was redeemed, subtracting the 1%
CDSC, if applicable.

The tables below illustrate the total returns on a $1,000 investment in the
Fund's Class A, Class C and Class D shares for the ten years ended September 30,
1999 or from the Class's inception through September 30, 1999, assuming
investment of all dividends and capital gain distributions.



                                       27
<PAGE>


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

                          Value of          Value of           Value         Total Value
        Year              Initial         Capital Gain          of                Of              Total
      Ended(1)         Investment(2)     Distributions       Dividends      Investment(2)     Return(1)(3)
      --------         -------------     -------------       ---------      -------------     ------------
<S>                         <C>                <C>              <C>              <C>               <C>
      9/30/90               $ 932              $-0-             $ 60            $  992
      9/30/91                 983                12              130             1,125
      9/30/92               1,019                15              204             1,238
      9/30/93               1,093                36              291             1,420
      9/30/94                 959                71              319             1,349
      9/30/95                 990               100              402             1,492
      9/30/96                 994               118              478             1,590
      9/30/97               1,011               140              564             1,715
      9/30/98               1,047               163              663             1,873
      9/30/99                 952               180              678             1,810             80.97%

<CAPTION>
                                     Class C
                                     -------

                          Value of          Value of           Value         Total Value
       Period             Initial         Capital Gain          of                Of              Total
      Ended(1)         Investment(2)     Distributions       Dividends      Investment(2)     Return(1)(3)
      --------         -------------     -------------       ---------      -------------     ------------
<S>                         <C>                <C>              <C>              <C>               <C>
      9/30/99                $932              $-0-              $11              $943             (5.74)%

<CAPTION>
                                     Class D
                                     -------

                          Value of          Value of           Value         Total Value
       Period             Initial         Capital Gain          of                Of              Total
      Ended(1)         Investment(2)     Distributions       Dividends      Investment(2)     Return(1)(3)
      --------         -------------     -------------       ---------      -------------     ------------
<S>                         <C>                <C>              <C>              <C>               <C>
      9/30/94                $901             $-0-              $ 24              $925
      9/30/95                 930               18                65             1,013
      9/30/96                 933               30               108             1,071
      9/30/97                 950               44               153             1,147
      9/30/98                 983               58               202             1,243
      9/30/99                 894               74               225             1,193             19.35%
</TABLE>

- ----------
(1)  For the ten-year period ended September 30, 1999 for Class A shares, from
     commencement of operations for Class C shares on May 27, 1999 and from
     commencement of operations for Class D shares on February 1, 1994.


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


(3)  Total return for each Class 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 or CDSC, if applicable;
     determining total value of all dividends and distributions that would have
     been paid during the period on such shares assuming that each dividend or
     distribution was invested in additional shares at net asset value;
     calculating the total value of the investment at the end of the period; and
     finally, by dividing the difference between the amount of the hypothetical
     initial investment at the beginning of the period and its value at the end
     of the period by the amount of the hypothetical initial investment.


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


                                       28
<PAGE>


                              Financial Statements


The Fund's Annual Report to Shareholders for the fiscal year ended September 30,
1999, contains a schedule of the investments of the Fund as of September 30,
1999, as well as certain other financial information. 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

The Trustees are authorized to classify or reclassify and issue any shares of
beneficial interest of the Trust into any number of other classes without
further action by shareholders. 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.


As a general matter, the Fund will not hold annual or other meetings of the
shareholders. This is because the Declaration of Trust provides for shareholder
voting only (a) for the election or removal of one or more Trustees if a meeting
is called for that purpose, (b) with respect to any matter as to which
shareholder approval is required by the 1940 Act, (c) with respect to any
termination or reorganization of the Fund or any series, (d) with respect to any
amendment of the Declaration of Trust (other than amendments establishing and
designating new series or classes of shares, abolishing series or classes of
shares when there are no units thereof outstanding, changing the name of the
Fund, supplying any omission, curing any ambiguity or curing, correcting or
supplementing any provision thereof which is internally inconsistent with any
other provision thereof or which is defective or inconsistent with the 1940 Act
or with the requirements of the Internal Revenue Code or applicable regulations
for the Fund's obtaining the most favorable treatment thereunder available to
regulated investment companies, (e) to the same extent as the stockholders of a
Pennsylvania business corporation as to whether or not a court action,
proceeding, or claim should or should not be brought or maintained derivatively
or as a class action on behalf of the Fund or the shareholders, and (f) with
respect to such additional matters relating to the Fund as may be required by
the 1940 Act, the Declaration of Trust, the By-laws of the Fund, any
registration of the Fund with the SEC or any state, or as the Trustees may
consider necessary or desirable. Each Trustee serves until the next meeting of
shareholders, if any, called for the purpose of considering the election or
reelection of such Trustee or of a successor to such Trustee, and until the
election and qualification of his successor, if any, elected at such meeting, or
until such Trustee sooner dies, resigns, retires or is removed by the
shareholders or two-thirds of the Trustees.

The shareholders of the Fund have the right, upon the declaration in writing or
vote of more than two-thirds of the Fund's outstanding shares, to remove a
Trustee. The Trustees will call a meeting of shareholders to vote on the removal
of a Trustee upon the written request of the record holders of 10% of its
shares. In addition, whenever ten or more shareholders of record who have been
such for at least six months preceding the date of application, and who hold in
the aggregate either shares having a net asset value of at least $25,000 or at
least 1% of the outstanding shares, whichever is less, shall apply to the
Trustees in writing, stating that they wish to communicate with other
shareholders with a view to obtaining signatures to a request for a meeting for
the purpose of voting upon the question of removal of any Trustee or Trustees
and accompanied by a form of communication and request which they wish to
transmit, the Trustee shall within five business days after receipt of such
application either: (1) afford to such applicants access to a list of the names
and addresses of all shareholders as recorded on the books of the Fund; or (2)
inform such applicants as to the approximate number of shareholders of record,
and the approximate cost of mailing to them the proposed communication and form
of requests. If the Trustees elect to follow the latter course, the Trustees,
upon the written request of such applicants, accompanied by a tender of the
material to be mailed and of the reasonable expenses of mailing, shall, with
reasonable promptness, mail such material to all shareholders of record at their
addresses as recorded on the books, unless within five business days after such
tender the Trustees shall mail to such applicants and file with the SEC,
together with a copy of the material to be mailed, a written statement signed by
at least a majority of the Trustees to the effect that in their opinion either
such material contains untrue statements of fact or omits to state facts
necessary to make the statements contained therein not misleading, or would be
in violation of applicable law, and specifying the basis of such opinion. After
opportunity for hearing upon the objections specified in the written statement
so filed, the SEC may, and if demanded by the Trustees or by such applicants
shall, enter an order either sustaining one or more of such objections or
refusing to sustain any of them. If the SEC shall enter an order refusing to
sustain any



                                       29
<PAGE>


of such objections, or if, after the entry of an order sustaining one or more of
such objections, the SEC shall find, after notice and opportunity for hearing,
that all objections so sustained have been met, and shall enter an order so
declaring, the Trustees shall mail copies of such material to all shareholders
with reasonable promptness after the entry of such order and the renewal of such
tender.

The shareholders of a Pennsylvania trust could, under certain circumstances, be
held personally liable as partners for its obligations. However, the Declaration
of Trust contains an express disclaimer of shareholder liability for acts or
obligations of the Trust. The Declaration of Trust also provides for
indemnification and reimbursement of expenses out of the Fund's assets for any
shareholder held personally liable for obligations of the Fund.

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

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



                                       30
<PAGE>


                                   Appendix A

Moody's Investors Service, Inc. (Moody's)
Municipal Bonds

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

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

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

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

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

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

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

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

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

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

Municipal Notes

Moody's ratings for municipal notes and other short-term loans are designated
Moody's Investment Grade (MIG). This distinction is in recognition of the
differences between short-term and long-term credit risk. Loans bearing the
designation MIG 1 are of the best quality, enjoying strong protection by
established cash flows of funds for their servicing or by established and
broad-based access to the market for refinancing. Loans bearing the designation
MIG 2 are of high quality, with margins of protection ample although not so
large as in the preceding group. Loans bearing the designation MIG 3 are of
favorable quality, with all security elements accounted for but lacking the
undeniable strength of the preceding grades. Market access for refinancing in
particular, is likely to be less well established. Notes bearing the designation
MIG 4 are judged to be of adequate quality, carrying


                                       31
<PAGE>


specific risk but having protection commonly regarded as required of an
investment security and not distinctly or predominantly speculative.

Commercial Paper

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

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

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

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

Standard & Poor's Corporation (S&P)
Municipal Bonds

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

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

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

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

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

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

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

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

Municipal Notes

SP-1: Very strong or strong capacity to pay principal and interest. Those issues
determined to possess overwhelming safety characteristics will be given a plus
(+) designation.

SP-2: Satisfactory capacity to pay principal and interest.


                                       32
<PAGE>


Commercial Paper

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

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

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

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

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

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

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

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

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



                                       33
<PAGE>


                                   Appendix B


                      RISK FACTORS REGARDING INVESTMENTS IN
                        PENNSYLVANIA MUNICIPAL SECURITIES


The following information as to certain Pennsylvania considerations is given to
investors in view of the Fund's policy of investing primarily in securities of
Pennsylvania issuers. Such information is derived from sources that are
generally available to investors and is believed to be accurate. Such
information constitutes only a brief summary, does not purport to be a complete
description and is based on information from official statements relating to
securities offerings of Pennsylvania issuers.

Employment. The industries traditionally strong in Pennsylvania, such as coal,
steel and railway, have declined and account for a decreasing share of total
employment. Service industries (including trade, health care, education and
finance) have grown, however, contributing increasing shares to the
Commonwealth's gross product and exceeding the manufacturing sector in each year
since 1985 as the largest single source of employment.


While the level of Pennsylvania's population basically remained constant from
1989 through 1998, nonagricultural employment increased by 7.0% from 1989 to
1998, after declining during the early 1980's. In contrast, increases in US
nonagricultural employment have been greater and declines smaller for the same
periods, with US employment increasing by 17% from 1989 to 1998. Trends in the
unemployment rates of Pennsylvania and the US have been similar from 1988 to
1997. From 1986 to 1990, Pennsylvania's unemployment rate was lower than the US
rate. For example, Pennsylvania's unemployment rate for 1989 and 1990 was 4.5%
and 5.4%, respectively, while the unemployment rate for the US was 5.3% and 5.6%
for the same years. In 1997 and 1998, Pennsylvania's unemployment rate was 5.2%
and 4.6%, respectively, compared with the US unemployment rate of 4.9% and 4.5%
for the same years.


Commonwealth Debt. Debt service on general obligation bonds of Pennsylvania,
except those issued for highway purposes or the benefit of other special revenue
funds, is payable from Pennsylvania's general fund, the recipient of all
Commonwealth revenues that are not required to be deposited in other funds.


As of June 30, 1999, the Commonwealth had $4,924.5 million of long-term bonds
outstanding, with debt for capital projects constituting the largest dollar
amount. Although Pennsylvania's Constitution permits the issuance of an
aggregate amount of capital project debt equal to 1.75 times the average annual
tax revenues of the preceding five fiscal years, the General Assembly may
authorize and historically has authorized a smaller amount. This constitutional
limit does not apply to other types of Pennsylvania debt such as electorate
approved debt or debt issued to rehabilitate areas affected by disaster.
However, the former may be incurred only after the enactment of legislation
calling for a referendum and usually specifying the purpose and amount of such
debt, followed by electoral approval. Similarly, debt issued to rehabilitate a
disaster area must be authorized by legislation which sets the debt limits.
These statutory and constitutional limitations imposed on bonds are also
applicable to bond anticipation notes.


Pennsylvania cannot use tax anticipation notes or any other form of debt to fund
budget deficits between fiscal years. All year-end deficits must be funded
within the succeeding fiscal year's budget. Moreover, the principal amount of
tax anticipation notes issued and outstanding for the account of a fund during a
fiscal year may not exceed 20% of that fund's estimated revenues for that fiscal
year.


Moral Obligations. The debt of the Pennsylvania Housing Finance Agency (PHFA), a
state agency which provides housing for lower and moderate income families, and
certain obligations of The Hospitals and Higher Education Facilities Authority
of Philadelphia (Hospitals Authority) is the only debt bearing Pennsylvania's
moral obligation. PHFA's bonds, but not its notes, are partially secured by a
capital reserve fund required to be maintained by PHFA in an amount equal to the
maximum annual debt service on its outstanding bonds in any succeeding calendar
year. If there is a potential deficiency in the capital reserve fund or if funds
are necessary to avoid default on interest, principal or sinking fund payments
on bonds or notes of PHFA, the Governor must place in Pennsylvania's budget for
the next succeeding year an amount sufficient to make up any such deficiency



                                       34
<PAGE>



or to avoid any such default. The budget which the General Assembly adopts may
or may not include such amount. PHFA is not permitted to borrow additional funds
as long as any deficiency exists in the capital reserve fund. As of June 30,
1999, PHFA had $2,779.3 million of bonds outstanding.


The Hospitals Authority is a municipal authority organized by the City of
Philadelphia (City) to, inter alia, acquire and prepare various sites for use as
intermediate care facilities for the mentally retarded. In 1986 the Hospitals
Authority issued $20.4 million of bonds, which were refunded in 1993 by a $21.1
million bond issue of the Hospitals Authority (Hospitals Authority Bonds) for
such facilities for the City. The Hospitals Authority Bonds are secured by
leases with the City and a debt service reserve fund for which the Pennsylvania
Department of Public Welfare (Department) has agreed with the Hospitals
Authority to request in the Department's annual budget submission to the
Governor, an amount of funds sufficient to alleviate any deficiency in the debt
service reserve fund that may arise. The budget as finally adopted may or may
not include the amount requested. If funds are paid to the Hospitals Authority,
the Department will obtain certain rights in the property financed with the
Hospitals Authority Bonds in return for such payment.


In response to a delay in the availability of billable beds and the revenues
from these beds to pay debt service on the Hospitals Authority Bonds, PHFA
agreed in June 1989 to provide a $2.2 million low-interest loan to the Hospitals
Authority. The loan enabled the Hospitals Authority to make all debt service
payments on the Hospitals Authority Bonds during 1990. Enough beds were
completed in 1991 to provide sufficient revenues to the Hospitals Authority to
meet its debt service payments and to begin repaying the loan from PHFA. As of
June 30, 1999, $1.0 million of the loan was outstanding.

Other Commonwealth Obligations; Pensions. Other obligations of Pennsylvania
include long-term agreements with public authorities to make lease payments that
are in some cases pledged as security for those authorities' revenue bonds, and
two pension plans covering state public school and other employees. These
pension plans had no unfunded actuarial accrued liability for their fiscal year
ended in 1998.


Pennsylvania Agencies. Certain Pennsylvania-created agencies have statutory
authorization to incur debt for which legislation providing for state
appropriations to pay debt service thereon is not required. The debt of these
agencies is supported solely by assets of, or revenues derived from the various
projects financed and is not an obligation of Pennsylvania. Some of these
agencies, however, are indirectly dependent on Pennsylvania funds through
various state-assisted programs. There can be no assurance that in the future
assistance of the Commonwealth will be available to these agencies. These
entities are as follows: The Delaware River Joint Toll Bridge Commission,
Delaware River Port Authority, Pennsylvania Energy Development Authority,
Pennsylvania Higher Education Assistance Agency, Pennsylvania Higher Educational
Facilities Authority, Pennsylvania Industrial Development Authority,
Pennsylvania Infrastructure Investment Authority, the Pennsylvania State Public
School Building Authority, the Pennsylvania Turnpike Commission, the
Pennsylvania Economic Development Financing Authority and the Philadelphia
Regional Port Authority.

Debt of Political Subdivisions and their Authorities. The ability of
Pennsylvania's political subdivisions, such as counties, cities and school
districts, to engage in general obligation borrowing without electorate approval
is generally limited by their recent revenue collection experience, although
generally such subdivisions can levy real property taxes unlimited as to rate or
amount to repay general obligation borrowings. Recent legislation authorizes
these subdivisions to engage in general obligation borrowings without limit as
to principal amount to fund unfunded accrued pension liabilities.

Political subdivisions can issue revenue obligations which will not affect their
general obligation borrowing capacity, but only if such revenue obligations are
either limited as to repayment from a certain type of revenue other than tax
revenues or projected to be repaid solely from project revenues.


Industrial development and municipal authorities, although created by political
subdivisions, can only issue obligations payable solely from the revenues
derived from the financed project. If the user of the project is a political
subdivision, that subdivision's full faith and credit may back the repayment of
the obligations of the industrial development or municipal authority. Often the
user of the project is a nongovernmental entity, such as a not-for-profit
hospital or university, a public utility or an industrial corporation, and there
can be no assurance that it will meet its financial obligations or that the
pledge, if any, of property financed will be adequate. Factors affecting the
business of the user of the project, such as managed care, increased competition
and governmental efforts to control health care costs (in the case of
hospitals), declining enrollment and reductions in governmental



                                       35
<PAGE>



financial assistance (in the case of universities), increasing capital and
operating costs and competition (in the case of public utilities) and economic
slowdowns (in the case of industrial corporations) may adversely affect the
ability of the project user to pay the debt service on revenue bonds issued on
its behalf.


Many factors affect the financial condition of the Commonwealth and its
counties, cities, school districts and other political subdivisions, such as
social, environmental and economic conditions, many of which are not within the
control of such entities. As is the case with many states and cities, many of
the programs of the Commonwealth and its political subdivisions, particularly
human services programs, depend in part upon federal reimbursements which have
been steadily declining. From time to time, the Commonwealth and various of its
political subdivisions (including particularly the Cities of Philadelphia,
Pittsburgh and Scranton) have encountered financial difficulty due to slowdowns
in the pace of economic activity in the Commonwealth and to other factors. The
Fund is unable to predict what effect, if any, such factors would have on the
Fund's investments.


                                       36
<PAGE>


                                   Appendix C


                 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.

 ...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.


                                       37
<PAGE>


 ...1950-1989

o    Develops new open-end investment companies. Today, manages more than 50
     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 Global Fund Series, Inc., which today offers five
     separate series: Seligman International Growth Fund, Seligman Global
     Smaller Companies Fund, Seligman Global Technology Fund, Seligman Global
     Growth Fund and Seligman Emerging Markets Fund.

o    Launches Seligman Value Fund Series, which currently offers two separate
     series: Seligman Large-Cap Value Fund and Seligman Small-Cap Value Fund.

o    Launches innovative Seligman New Technologies Fund, Inc., a closed-end
     "interval" fund seeking long-term capital appreciation by investing in
     technology companies, including venture capital investing.


 ...2000


o    Introduces Seligman Time Horizon/Harvester Series, Inc., an asset
     allocation type mutual fund containing four funds: Seligman Time Horizon 30
     Fund, Seligman Time Horizon 20 Fund, Seligman Time Horizon 10 Fund and
     Seligman Harvester Fund.




                                       38
<PAGE>


To the Shareholders

The fiscal year ended September 30, 1999, was a period of steadily rising
interest rates, creating a difficult environment for fixed-income securities and
for Seligman Pennsylvania Municipal Fund.

At the end of the Fund's fiscal-year 1998, the Federal Reserve Board was easing
monetary policy in an effort to protect the US economy from the effects of the
global economic crisis. Central banks around the world also lowered key
interest rates in response to global turmoil. These easing actions were
successful and the world economy rebounded. However, the global recovery,
combined with continued growth in the US, soon caused the US Fed to voice
concerns about inflation. In May, the Fed announced its bias toward a tighter
policy and has since followed through with two federal funds rate hikes, for a
total of 50 additional basis points.

Throughout this fiscal year, continued robust growth in the US, the recovering
world economy, growing concerns regarding inflation, and tighter monetary
policy, sent market interest rates steadily higher. On September 30, 1998, the
30-year US Treasury bond was yielding 4.98%. One year later, the yield had
moved to 6.06%. The Pennsylvania State general obligation 30-year municipal
bond fluctuated within a narrower range, but still rose significantly, from
4.93% on September 30, 1998, to 5.77% on September 30, 1999. The additional
stability in the Pennsylvania municipal market was largely the result of an
imbalance in municipal supply and demand. For much of the past year, rising
yields were attracting investors, while municipal issuers were reluctant to
offer new supply at higher rates.

Looking ahead, we believe that the US economy will slow, as was intended by the
Fed's most recent actions, and that inflation fears will thus subside and reduce
bond market volatility. We anticipate that the municipal market will outperform
the Treasury market for the balance of calendar-year 1999, as a result of
improving municipal market fundamentals, the most significant of which is the
slowdown in municipal issuance which is expected to continue into the new year.

As the millennium approaches, we have become concerned that the media's focus on
the Year 2000 (Y2K) computer issue, and the fears that this attention may spark,
will cause some investors to take actions that are not in their best long-term
interests. In our view, the primary danger to investors is losing sight of their
long-term financial goals and altering their portfolios and asset allocations in
an attempt to respond to the confusion surrounding this issue.

In the US, governments and businesses have committed substantial resources to
this issue and, while there may be scattered inconveniences, we believe that
the US will enter the year 2000 relatively seamlessly, and that much of the
rest of the developed world is also well positioned to deal with the new
millennium.

For the past several years, J. & W. Seligman & Co. Incorporated (Seligman),
your Fund's manager, and Seligman Data Corp. (Seligman Data), your Fund's
shareholder service agent, have been working to ensure that shareholders do not
experience any Y2K-related inconveniences at Seligman. We are pleased to report
that the early start has paid off. During the spring of this year, Seligman and
Seligman Data participated in Y2K testing conducted by the Securities Industry
Association. These tests were completed without any Y2K-related problems on the
part of Seligman or Seligman Data. Tests with key service providers were also
conducted, all of which were successfully completed in a Y2K environment.

We appreciate your confidence in Seligman Pennsylvania Municipal Fund and look
forward to serving your investment needs for many years to come. A discussion
with your Portfolio Manager, as well as the Fund's portfolio of investments and
financial statements, follows this letter. By order of the Trustees,


/s/ William C. Morris
William C. Morris
Chairman

                                                              /s/ Brian T. Zino
                                                              -----------------
                                                              Brian T. Zino
                                                              President
November 5, 1999
                                      1
<PAGE>

Interview With Your Portfolio Manager,
Thomas G. Moles

Q: What economic and market factors influenced Seligman Pennsylvania Municipal
   Fund in the last 12 months?

A: The past 12 months have been challenging for the financial markets, including
   the fixed-income markets. At this time last year, global equity markets were
   struggling to recover from the Asian financial crisis, as well as economic
   turmoil in Russia. In September 1998, the Federal Reserve Board initiated a
   series of federal funds rate easings in an effort to restore stability and
   liquidity to anxious world markets. At that time, market participants
   generally expected that US economic growth would contract as a result of
   world events, thereby preventing an acceleration in the rate of inflation.
   Additionally, many experts predicted that, with the approach of the new
   millennium, computer glitches would at best slow economic growth and at
   worst cause major disruptions leading to worldwide recession. One year
   later, the Fed has tightened to slow economic growth, world equity markets
   have recovered, and most market watchers expect the transition to the year
   2000 to be uneventful.

   During the past year, the municipal market did not exhibit the degree of
   volatility that characterized the US Treasury market. This was largely the
   result of the powerful influences of supply and demand that served to
   mitigate both upward and downward movements in municipal yields. Last year's
   Treasury market rallies were caused by heavy demand for Treasury securities
   during periods of equity market declines. Conversely, demand for municipal
   bonds was not greatly affected, which lessened municipal market volatility.
   Further, year-to-date municipal issuance is down 20% over the same period
   last year. This lack of supply held municipal yields steady and was the
   primary reason municipal bonds outperformed Treasury bonds for much of the
   past 12 months.

   While the municipal market was relatively stable overall, it was not immune
   to the effects of shifting economic and inflation expectations. By June
   1999,


A TEAM APPROACH

Seligman Pennsylvania Municipal Fund is managed by the Seligman Municipals Team,
headed by Thomas G. Moles. Mr. Moles is assisted in the management of the Fund
by a group of seasoned professionals who are responsible for research and
trading consistent with the Fund's investment objective.


[PICTURE OMITTED]

Seligman Municipals Team: (standing from left) Audrey Kuchtyak,
Theresa Barion, Debra McGuinness, (seated) Eileen Comerford,
Thomas G. Moles (Portfolio Manager)

                                      2
<PAGE>

Interview With Your Portfolio Manager,
Thomas G. Moles

    municipal yields began moving higher in response to increasing concern
    regarding the pace of economic activity and continued to move higher
    through fiscal year end. Accordingly, net asset values of the Fund's
    shares deteriorated during the last quarter of the fiscal year, and
    performance was disappointing.

Q:  What was your investment strategy?

A:  Over the past year, long-term municipal yields rose to levels not seen in
    several years. This presented an opportunity to enhance Fund yields by
    purchasing higher-yielding, longer-term bonds and by reducing positions in
    shorter-term bonds. In general, the longer the maturity of a bond, the more
    sensitive it is to changes in interest rates. During periods of declining
    interest rates, longer-term bonds outperform shorter-term bonds. However,
    during periods of rising interest rates, such as we have been experiencing,
    longer-term bonds decline more in price than shorter-term bonds.

    New purchases were concentrated in higher-rated bonds due primarily to a
    continuation of narrow yield spreads between higher- and lower-quality
    bonds. Additionally, a number of holdings received credit-rating upgrades,
    further contributing to the overall improvement in the Fund's credit
    quality.

    The Fund is well diversified among all major sectors of the municipal
    marketplace. Most sectors remain stable with the exception of health care,
    which remains vulnerable to further credit-quality deterioration mainly as a
    result of government cutbacks and the growth of managed care. Many health
    care issuers that have been well managed and have maintained consistently
    healthy finances are suddenly facing serious budget deficits. As a result of
    this alarming trend, we have been particularly diligent in monitoring our
    health care holdings. Despite the current situation, the health care sector
    continues to offer selective opportunities. Through in-depth credit
    analysis, we endeavor to identify strong health care credits for inclusion
    in the Fund's portfolio. Currently, Seligman Pennsylvania Municipal Fund has
    12% of assets in health care issues, the majority of which are insured and
    rated AAA, with the balance rated AA.

Q:  What is your outlook?

A:  The long-awaited economic slowdown has yet to materialize, increasing the
    risk that the rate of inflation will accelerate. In response, bond yields
    have been rising steadily year to date. For the remainder of calendar year
    1999, the bond markets will likely experience continued volatility until
    solid signs that the economy is moderating emerge. Many market participants
    expect the Fed to raise rates once more before year-end. This, together with
    higher market rates, may ease inflationary pressures and spark a bond-market
    rally.

    As we head toward the new millennium, we believe that there is much to be
    optimistic about. In the year 2000, the US economy will likely enter its
    tenth year of expansion, an extraordinary achievement. The financial well
    being of the nation's states, cities, and municipalities continues to
    improve, with many reporting record budget surpluses. The jobless rate
    remains below 5% nationally and consumer confidence remains high. Finally,
    as one of the few remaining possible ways to shelter income, municipal bond
    funds currently offer attractive yields compared to the after-tax yields of
    many taxable bond investments.

                                      3
<PAGE>

Performance Overview and Portfolio Summary

    This chart compares a $10,000 hypothetical investment made in Seligman
Pennsylvania Municipal Fund Class A shares with and without the initial 4.75%
maximum sales charge, and assumes that all distributions within the period are
invested in additional shares for the 10-year period ended September 30, 1999,
to a $10,000 hypothetical investment made in the Lehman Brothers Municipal Bond
Index (Lehman Index) for the same period. The performances of Seligman
Pennsylvania Municipal Fund Class C and Class D shares are not shown in this
chart but are included in the table on page 5. It is important to keep in mind
that the Lehman Index does not include any fees or sales charges and does not
reflect state-specific bond market performance. The table on page 5 also
includes relevant portfolio characteristics.

               With Sales  Without Sales
                  Charge       Charge     Lehman Index
   9/30/89        $9,530       $10,000       $10,000
  12/31/89        $9,888       $10,376       $10,384
   3/31/90        $9,858       $10,344       $10,431
   6/30/90       $10,076       $10,573       $10,675
   9/30/90        $9,924       $10,413       $10,681
  12/31/90       $10,417       $10,931       $11,142
   3/31/91       $10,575       $11,097       $11,393
   6/30/91       $10,826       $11,360       $11,636
   9/30/91       $11,253       $11,808       $12,089
  12/31/91       $11,593       $12,165       $12,495
   3/31/92       $11,629       $12,203       $12,532
   6/30/92       $12,087       $12,683       $13,009
   9/30/92       $12,383       $12,994       $13,353
  12/31/92       $12,674       $13,299       $13,596
   3/31/93       $13,158       $13,807       $14,101
   6/30/93       $13,654       $14,327       $14,562
   9/30/93       $14,204       $14,905       $15,054
  12/31/93       $14,309       $15,015       $15,265
   3/31/94       $13,394       $14,055       $14,427
   6/30/94       $13,465       $14,129       $14,587
   9/30/94       $13,494       $14,159       $14,686
  12/31/94       $13,304       $13,961       $14,475
   3/31/95       $14,314       $15,020       $15,498
   6/30/95       $14,623       $15,345       $15,871
   9/30/95       $14,918       $15,654       $16,329
  12/31/95       $15,701       $16,475       $17,001
   3/31/96       $15,350       $16,108       $16,796
   6/30/96       $15,443       $16,205       $16,925
   9/30/96       $15,898       $16,682       $17,314
  12/31/96       $16,240       $17,041       $17,756
   3/31/97       $16,112       $16,907       $17,715
   6/30/97       $16,664       $17,486       $18,326
   9/30/97       $17,153       $17,999       $18,879
  12/31/97       $17,652       $18,523       $19,391
   3/31/98       $17,890       $18,773       $19,614
   6/30/98       $18,156       $19,052       $19,912
   9/30/98       $18,731       $19,655       $20,524
  12/31/98       $18,736       $19,661       $20,647
   3/31/99       $18,858       $19,789       $20,830
   6/30/99       $18,488       $19,400       $20,462
   9/30/99       $18,098       $18,990       $20,380


    The performances of Class C and Class D shares will be greater than or less
than the performance shown for Class A shares, based on the differences in
sales charges and fees paid by shareholders.

    Performance data quoted represent changes in prices and assume that all
distributions within the period are invested in additional shares. The rates of
return will vary and the principal value of an investment will fluctuate.
Shares, if redeemed, may be worth more or less than their original cost. Past
performance is not indicative of future investment results.

                                      4
<PAGE>

Performance Overview and Portfolio Summary

Investment Results Per Share

TOTAL RETURNS
For Periods Ended September 30, 1999

<TABLE>
<CAPTION>
                                                                                  AVERAGE ANNUAL
                                                                   ------------------------------------------
                                            CLASS C                                                  CLASS D
                                             SINCE                                                    SINCE
                                           INCEPTION       SIX         ONE       FIVE       10      INCEPTION
                                            5/27/99*     MONTHS*      YEAR       YEARS     YEARS     2/1/94
                                         ------------  ----------    ------     -------   -------  -----------
<S>                                         <C>          <C>         <C>       <C>        <C>       <C>
Class A**
With Sales Charge                             n/a        (8.61)%      (7.96)%   5.01%      6.11%       n/a
Without Sales Charge                          n/a        (4.03)       (3.38)    6.05       6.62        n/a
Class C**
With Sales Charge and CDSC                   (5.74)%       n/a         n/a       n/a        n/a        n/a
Without Sales Charge and CDSC                (3.84)        n/a         n/a       n/a        n/a        n/a
Class D**
With 1% CDSC                                  n/a        (5.22)       (4.90)     n/a        n/a        n/a
Without CDSC                                  n/a        (4.28)       (3.99)    5.23        n/a       3.17%
Lehman Brothers
  Municipal Bond Index***                    (1.83)+     (2.16)       (0.70)    6.77       7.38       5.02++
</TABLE>

<TABLE>
<CAPTION>
NET ASSET VALUE                                            DIVIDEND, CAPITAL GAIN, AND YIELD INFORMATION
                                                           For Periods Ended September 30, 1999

             9/30/99       3/31/99        9/30/98                     DIVIDENDS 0     CAPITAL GAIN 0     SEC YIELD 00
             --------      --------      --------                     -----------     -------------      ----------
<S>            <C>          <C>           <C>            <C>            <C>              <C>               <C>
Class A        $7.49         $7.98         $8.24          Class A        $0.336           $0.148            4.15%
Class C         7.49           n/a           n/a          Class C         0.097              --             3.56
Class D         7.49          7.97          8.23          Class D         0.276            0.148            3.60
</TABLE>

<TABLE>
<CAPTION>
HOLDINGS BY MARKET SECTOR++                                MOODY'S/S&P RATINGS++
<S>                               <C>                     <C>                         <C>
Revenue Bonds                      82%                     Aaa/AAA                     76%
General Obligation Bonds++         18                      Aa/AA                       22
                                                           Baa/BBB                      2
<FN>
WEIGHTED AVERAGE MATURITY  21.8 years
- ------------------
    * Returns for periods of less than one year are not annualized.

   ** Return figures reflect any change in price and assume all distributions
      within the period are invested in additional shares. Returns for Class A
      shares are calculated with and without the effect of the initial 4.75%
      maximum sales charge. Returns for Class C shares are calculated with and
      without the effect of the initial 1% maximum sales charge and the 1%
      contingent deferred sales charge ("CDSC") that is charged on redemptions
      made within 18 months of the date of purchase. Returns for Class D shares
      are calculated with and without the effect of the 1% CDSC, charged on
      redemptions made within one year of the date of purchase. A portion of the
      Fund's income may be subject to applicable state and local taxes, and any
      amount may be subject to the federal alternative minimum tax.

  *** The Lehman Index is an unmanaged index that does not include any fees or
      sales charges. It is composed of approximately 60% revenue bonds and 40%
      state government obligations. Investors cannot invest directly in an index.

    + From 5/31/99.

   ++ From 1/31/94.

    0 Represents per share amount paid or declared for the year ended September
      30, 1999 (for Class C shares, for the period May 27, 1999 to September 30,
      1999).

   00 Current yield, representing the annualized yield for the 30-day period ended
      September 30, 1999, has been computed in accordance with SEC regulations and
      will vary.

   D+ Percentages based on market values of long-term holdings at
      September 30, 1999.

 D+D+ Includes pre-refunded and escrowed-to-maturity securities.
</FN>
</TABLE>

                                      5
<PAGE>

Portfolio of Investments
September 30, 1999

<TABLE>
<CAPTION>
    FACE                                                                                      RATINGS+      MARKET
   AMOUNT                                  MUNICIPAL BONDS                                   MOODY'S/S&P     VALUE
 ----------                               ----------------                                   -----------    --------
<S>           <C>                                                                              <C>        <C>
 $1,000,000    Berks County Municipal Authority, PA Hospital Rev. (The Reading
                  Hospital & Medical Center Project), 5.70%  due 10/1/2014 .............        Aaa/AAA   $1,027,180

  1,000,000    Berks County Municipal Authority, PA Hospital Rev. (The Reading
                  Hospital & Medical Center Project), 6.10%  due 10/1/2023 .............        Aaa/AAA    1,012,310

  1,000,000    Bucks County, PA GOs, 5% due 5/1/2017 ...................................        Aa2/AA       923,890

  1,000,000    Delaware County Authority, PA (Haverford College Rev.),
                  5 1/2% due 11/15/2023 ................................................        Aaa/AAA      963,740

  1,000,000    Delaware County Industrial Development Authority, PA (Philadelphia
                  Suburban Water Company), 6.35% due 8/15/2025* ........................        Aaa/AAA    1,031,740

  1,000,000    Delaware Valley, PA Regional Finance Authority Local Government Rev.,
                  7 3/4% due 7/1/2027 ..................................................        Aaa/AAA    1,285,600

  1,300,000    Lehigh County, PA Industrial Development Authority Pollution Control Rev.
                  (Pennsylvania Power & Light Company Project), 6.15% due 8/1/2029 .....        Aaa/AAA    1,324,115

  1,250,000    Montgomery County, PA GOs, 5.45% due 9/15/2022 ..........................        Aaa/NR     1,197,888

    500,000    Montgomery County, PA Industrial Development Authority Pollution
                  Control Rev. (Philadelphia Electric Co.), 7.60% due 4/1/2021* ........        Baa1/A       527,880

  2,000,000    Pennsylvania Higher Education Assistance Agency Student Loan Rev.,
                  6.40% due 3/1/2022* ..................................................        Aaa/AAA    2,145,900

  1,000,000    Pennsylvania Higher Educational Facilities Authority College & University
                  Rev. (University of Pennsylvania), 5.90% due 9/1/2014 ................        Aa3/AA     1,019,620

  1,250,000    Pennsylvania Higher Educational Facilities Authority Rev. (Temple University),
                  5% due 4/1/2029 ......................................................        Aaa/AAA    1,090,488

  1,350,000    Pennsylvania Higher Educational Facilities Authority Rev. (Drexel University),
                  5 3/4% due 5/1/2022 ..................................................        Aaa/AAA    1,334,786

  1,500,000    Pennsylvania Housing Finance Agency (Single Family Mortgage Rev.),
                  5.85% due 4/1/2017* ..................................................        Aa2/AA+    1,500,000

  1,350,000    Pennsylvania Housing Finance Agency (Rental Housing Rev.),
                  6 1/2% due 7/1/2023 ..................................................        Aaa/AAA    1,414,233

  1,250,000    Pennsylvania Intergovernmental Co-Op Authority Special Tax Rev.
                  (Philadelphia Funding Program), 5% due 6/15/2021 .....................        Aaa/AAA    1,117,387

  1,000,000    Pennsylvania State GOs, 5% due 3/1/2017 .................................        Aa3/AA       919,140

  1,000,000    Pennsylvania State Turnpike Commission Rev., 6% due 12/1/2017 ...........        Aaa/AAA    1,023,500
</TABLE>
- ------------------
+ Ratings have not been audited by Deloitte & Touche LLP.

* Interest income earned from this security is subject to the federal
  alternative minimum tax.
See notes to financial statements.

                                     6
<PAGE>

Portfolio of Investments (continued)
September 30, 1999

<TABLE>
<CAPTION>
    FACE                                                                                      RATINGS+      MARKET
   AMOUNT                                  MUNICIPAL BONDS                                   MOODY'S/S&P     VALUE
 ----------                               ----------------                                   -----------    --------
<S>           <C>                                                                              <C>       <C>
 $1,300,000    Philadelphia, PA Airport Rev., 6.10% due 6/15/2025* .....................        Aaa/AAA  $ 1,308,580

  1,000,000    Philadelphia, PA Parking Authority Airport Parking Rev.,
                  5 1/2% due 9/1/2018...................................................        Aaa/AAA      969,100

    450,000    Philadelphia Redevelopment Authority, PA (Home Mortgage Rev.),
                  9% due 6/1/2017++ ....................................................        NR/AA        468,193

  1,000,000    Pittsburgh, PA Water & Sewer Authority Rev., 5.65% due 9/1/20250.........        Aaa/AAA    1,051,720

  1,000,000    Schuylkill County, PA Industrial Development Authority Rev. (Charity
                  Obligated Group), 5% due 11/1/2028 ...................................        Aa2/AA+      860,700
                                                                                                         -----------

TOTAL MUNICIPAL BONDS (Cost $25,461,658) -- 97.6% .....................................................   25,517,690

VARIABLE RATE DEMAND NOTES (Cost $100,000) -- 0.4% ....................................................      100,000

OTHER ASSETS LESS LIABILITIES -- 2.0% .................................................................      523,428
                                                                                                         -----------
NET ASSETS -- 100.0% ..................................................................................  $26,141,118
                                                                                                         ===========
</TABLE>
- ------------------
+  Ratings have not been audited by Deloitte & Touche LLP.
++ Escrowed-to-maturity security.
0  Pre-refunded security.
*  Interest income earned from this security is subject to the federal
   alternative minimum tax.
See notes to financial statements.


                                      7
<PAGE>

Statement of Assets and Liabilities
September 30, 1999

<TABLE>
<S>                                                                    <C>            <C>
ASSETS:
Investments, at value:
   Long-term holdings (Cost $25,461,658)...........................    $25,517,690
   Short-term holdings (Cost $100,000).............................        100,000     $25,617,690
                                                                      ------------
Cash..............................................................................         149,470
Interest receivable...............................................................         417,725
Receivable for Shares of Beneficial Interest sold.................................          76,226
Expenses prepaid to shareholder service agent.....................................           4,099
Other.............................................................................           3,910
                                                                                       -----------
Total Assets......................................................................      26,269,120
                                                                                       -----------
LIABILITIES:
Dividends payable.................................................................          35,256
Accrued expenses and other........................................................          92,746
                                                                                       -----------
Total Liabilities.................................................................         128,002
                                                                                       -----------
Net Assets........................................................................     $26,141,118
                                                                                       ===========

COMPOSITION OF NET ASSETS:
Shares of Beneficial Interest, at par ($.001 par value; unlimited shares
   authorized; 3,488,642 shares outstanding):
   Class A........................................................................     $     3,355
   Class C........................................................................              19
   Class D........................................................................             114
Additional paid-in capital........................................................      25,914,579
Undistributed net realized gain...................................................         167,019
Net unrealized appreciation of investments........................................          56,032
                                                                                       -----------
Net Assets........................................................................     $26,141,118
                                                                                       ===========
NET ASSET VALUE PER SHARE:
Class A ($25,141,531 / 3,355,118 shares)..........................................           $7.49
                                                                                             =====
Class C ($143,131 / 19,122 shares)................................................           $7.49
                                                                                             =====
Class D ($856,456 / 114,402 shares)...............................................           $7.49
                                                                                             =====
</TABLE>
- ------------------
See notes to financial statements.

                                      8
<PAGE>

Statement of Operations
For the Year Ended September 30, 1999

<TABLE>
<S>                                                                    <C>            <C>
INVESTMENT INCOME:
Interest..........................................................................      $1,558,689

EXPENSES:
Management fee ....................................................     $  142,802
Distribution and service fees .....................................         79,054
Shareholder account services.......................................         43,774
Auditing and legal fees ...........................................         39,302
Registration.......................................................         18,683
Trustees' fees and expenses........................................         12,434
Shareholder reports and communications.............................          8,122
Custody and related services.......................................          6,158
Miscellaneous .....................................................          3,740
                                                                        ----------
Total Expenses....................................................................         354,069
                                                                                        ----------
Net Investment Income.............................................................       1,204,620

NET REALIZED AND UNREALIZED GAIN (LOSS) ON INVESTMENTS:
Net realized gain on investments ..................................        173,072
Net change in unrealized appreciation of investments...............     (2,275,350)
                                                                        ----------
Net Loss on Investments...........................................................      (2,102,278)
                                                                                        ----------
Decrease in Net Assets from Operations............................................      $ (897,658)
                                                                                        ==========
</TABLE>
- ------------------
See notes to financial statements.

                                      9
<PAGE>

Statements of Changes in Net Assets

<TABLE>
<CAPTION>
                                                                                    YEAR ENDED SEPTEMBER 30,
                                                                                  ---------------------------
OPERATIONS:                                                                          1999            1998
                                                                                  -----------     -----------
<S>                                                                              <C>             <C>
Net investment income .....................................................       $ 1,204,620     $ 1,316,340
Net realized gain on investments ..........................................           173,072         544,834
Net change in unrealized appreciation of investments.......................        (2,275,350)        806,321
                                                                                  -----------     -----------
Increase (Decrease) in Net Assets from Operations .........................          (897,658)      2,667,495
                                                                                  -----------     -----------
DISTRIBUTIONS TO SHAREHOLDERS:
Net investment income:
   Class A ................................................................        (1,174,204)     (1,288,647)
   Class C ................................................................              (515)             --
   Class D ................................................................           (29,901)        (27,693)
Net realized gain on investments:
   Class A ................................................................          (531,302)       (305,259)
   Class C ................................................................                --              --
   Class D ................................................................           (13,843)         (8,304)
                                                                                  -----------     -----------
Decrease in Net Assets from Distributions .................................        (1,749,765)     (1,629,903)
                                                                                  -----------     -----------
</TABLE>

<TABLE>
<CAPTION>
                                                           SHARES
                                                 ---------------------------
                                                   YEAR ENDED SEPTEMBER 30,
                                                 ---------------------------
                                                    1999             1998
                                                 ----------      -----------
TRANSACTIONS IN SHARES OF
   BENEFICIAL INTEREST:*
<S>                                               <C>             <C>             <C>             <C>
Net proceeds from sales of shares:
   Class A  ..............................          57,213           79,757           451,863         640,708
   Class C ...............................          19,122               --           145,878              --
   Class D ...............................          35,065           13,895           281,062         112,854
Shares issued in payment of dividends:
   Class A ...............................          76,467           83,374           604,487         669,895
   Class C ...............................              --               --                --              --
   Class D ...............................           1,956            2,463            15,477          19,744
Exchanged from associated Funds:
   Class A ...............................          17,197           26,798           138,701         216,297
   Class C ...............................              --               --                --              --
   Class D ...............................          33,251              629           267,612           5,046
Shares issued in payment of gain distributions:
   Class A ...............................          46,128           26,265           369,025         207,232
   Class C ...............................              --               --                --              --
   Class D ...............................           1,200            1,015             9,588           8,002
                                                  --------         --------       -----------     -----------
Total ....................................         287,599          234,196         2,283,693       1,879,778
                                                  --------         --------       -----------     -----------
Cost of shares repurchased:
   Class A ...............................        (384,498)        (346,731)       (3,048,387)     (2,789,014)
   Class C ...............................              --               --                --              --
   Class D ...............................         (23,050)         (44,446)         (182,932)       (358,480)
Exchanged into associated Funds:
   Class A ...............................         (49,311)         (59,074)         (390,745)       (469,552)
   Class C ...............................              --               --                --              --
   Class D ...............................          (7,742)          (2,476)          (61,602)        (19,989)
                                                  --------         --------       -----------     -----------
Total ....................................        (464,601)        (452,727)       (3,683,666)     (3,637,035)
                                                  --------         --------       -----------     -----------
Decrease in Net Assets from Transactions
   in Shares of Beneficial Interest ......        (177,002)        (218,531)       (1,399,973)     (1,757,257)
                                                  ========         ========       -----------     -----------
Decrease in Net Assets ....................................................        (4,047,396)       (719,665)
NET ASSETS:
Beginning of year .........................................................        30,188,514      30,908,179
                                                                                  -----------     -----------
End of Year ...............................................................       $26,141,118     $30,188,514
                                                                                  ===========     ===========
</TABLE>
- ------------------
* The Fund began offering Class C shares on May 27, 1999.
See notes to financial statements.

                                      10
<PAGE>

Notes to Financial Statements

1. Multiple Classes of Shares -- Seligman Pennsylvania Municipal Fund (the
"Fund") offers three classes of shares. Class A shares are sold with an initial
sales charge of up to 4.75% and a continuing service fee of up to 0.25% on an
annual basis. Class A shares purchased in an amount of $1,000,000 or more are
sold without an initial sales charge but are subject to a contingent deferred
sales charge ("CDSC") of 1% on redemptions within 18 months of purchase. The
Fund began offering Class C shares on May 27, 1999. Class C shares are sold with
an initial sales charge of up to 1% and are subject to a distribution fee of up
to 0.75% and a service fee of up to 0.25% on an annual basis, and a CDSC, if
applicable, of 1% imposed on redemptions made within 18 months of purchase.
Class D shares are sold without an initial sales charge but are subject to a
distribution fee of up to 0.75% and a service fee of up to 0.25% on an annual
basis, and a CDSC, if applicable, of 1% imposed on redemptions made within one
year of purchase. The three classes of shares represent interests in the same
portfolio of investments, have the same rights, and are generally identical in
all respects except that each class bears its separate distribution and certain
other class expenses, and has exclusive voting rights with respect to any matter
on which a separate vote of any class is required.

2. Significant Accounting Policies -- The financial statements have been
prepared in conformity with generally accepted accounting principles which
require management to make certain estimates and assumptions at the date of the
financial statements. The following summarizes the significant accounting
policies of the Fund:


a.  Security Valuation -- All municipal securities and other short-term
    holdings maturing in more than 60 days are valued based upon
    quotations provided by an independent pricing service or, in their
    absence, at fair value determined in accordance with procedures adopted
    by the Trustees. Short-term holdings maturing in 60 days or less are
    generally valued at amortized cost.

b.  Federal Taxes -- There is no provision for federal income tax. The Fund has
    elected to be taxed as a regulated investment company and intends to
    distribute substantially all taxable net income and net gain realized.

c.  Security Transactions and Related Investment Income -- Investment
    transactions are recorded on trade dates. Identified cost of investments
    sold is used for both financial statement and federal income tax purposes.
    Interest income is recorded on the accrual basis. The Fund amortizes
    original issue discounts and premiums paid on purchases of portfolio
    securities. Discounts other than original issue discounts are not amortized.

d.  Multiple Class Allocations -- All income, expenses (other than
    class-specific expenses), and realized and unrealized gains or losses are
    allocated daily to each class of shares based upon the relative value of the
    shares of each class. Class-specific expenses, which include distribution
    and service fees and any other items that are specifically attributable to a
    particular class, are charged directly to such class. For the year ended
    September 30, 1999, distribution and service fees were the only
    class-specific expenses.

e.  Distributions to Shareholders-- Dividends are declared daily and paid
    monthly. Other distributions paid by the Fund are recorded on the
    ex-dividend date. The treatment for financial statement purposes of
    distributions made to shareholders during the year from net investment
    income or net realized gains may differ from their ultimate treatment for
    federal income tax purposes. These differences are caused primarily by
    differences in the timing of the recognition of certain components of
    income, expense, or realized capital gain for federal income tax purposes.
    Where such differences are permanent in nature, they are reclassified in
    the components of net assets based on their ultimate characterization for
    federal

                                      11
<PAGE>

Notes to Financial Statements

    income tax purposes. Any such reclassifications will have no effect on
    net assets, results of operations or net asset value per share of the Fund.

3. Purchases and Sales of Securities -- Purchases and sales of portfolio
securities, excluding short-term investments, for the year ended September 30,
1999, amounted to $2,183,788 and $3,443,649, respectively.

    At September 30, 1999, the cost of investments for federal income tax
purposes was substantially the same as the cost for financial reporting
purposes, and the tax basis gross unrealized appreciation and depreciation of
investments amounted to $585,774 and $529,742, respectively.

4. Management Fee, Distribution Services, and Other Transactions -- J. & W.
Seligman & Co. Incorporated (the "Manager") manages the affairs of the Fund and
provides the necessary personnel and facilities. Compensation of all officers
of the Fund, all trustees of the Fund who are employees or consultants of the
Manager, and all personnel of the Fund and the Manager is paid by the Manager.
The Manager's fee, calculated daily and payable monthly, is equal to 0.50% per
annum of the Fund's average daily net assets.

   Seligman Advisors, Inc. (the "Distributor"), agent for the distribution of
the Fund's shares and an affiliate of the Manager, received concessions of
$2,255 for sales of Class A shares. Commissions of $17,993 and $1,530 were paid
to dealers for sales of Class A and Class C shares, respectively.

   The Fund has an Administration, Shareholder Services and Distribution Plan
(the "Plan") with respect to distribution of its shares. Under the Plan, with
respect to Class A shares, service organizations can enter into agreements with
the Distributor and receive a continuing fee of up to 0.25% on an annual basis,
payable quarterly, of the average daily net assets of the Class A shares
attributable to the particular service organizations for providing personal
services and/or the maintenance of shareholder accounts. The Distributor charges
such fees to the Fund pursuant to the Plan. For the year ended September 30,
1999, fees incurred aggregated $70,388, or 0.25% per annum of the average daily
net assets of Class A shares.

   Under the Plan, with respect to Class C and Class D shares, service
organizations can enter into agreements with the Distributor and receive a
continuing fee for providing personal services and/or the maintenance of
shareholder accounts of up to 0.25% on an annual basis of the average daily net
assets of the Class C and Class D shares for which the organizations are
responsible, and fees for providing other distribution assistance of up to 0.75%
on an annual basis of such average daily net assets. Such fees are paid monthly
by the Fund to the Distributor pursuant to the Plan. For the year ended
September 30, 1999, fees incurred under the Plan amounted to $136 and $8,530,
for Class C and Class D shares, respectively, which is equivalent to 1% per
annum of the average daily net assets of each class.

   The Distributor is entitled to retain any CDSC imposed on certain redemptions
of Class A and Class C shares occurring within 18 months of purchase and on
redemptions of Class D shares occurring within one year of purchase. For the
year ended September 30, 1999, such charges amounted to $6.

   Seligman Services, Inc., an affiliate of the Manager, is eligible to receive
commissions from certain sales of shares of the Fund, as well as distribution
and service fees pursuant to the Plan. For the year ended September 30, 1999,
Seligman Services, Inc. received commissions of $213 from the sale of shares of
the Fund. Seligman Services, Inc. also received distribution and service fees of
$3,999, pursuant to the Plan.

   Seligman Data Corp., which is owned by certain associated investment
companies, charged at cost $43,774 for shareholder account services.

   Certain officers and trustees of the Fund are officers or directors of the
Manager, the Distributor, Seligman Services, Inc., and/or Seligman Data Corp.

   The Fund has a compensation arrangement under


                                      12
<PAGE>

Notes to Financial Statements

which trustees who receive fees may elect to defer receiving such fees.
Trustees may elect to have their deferred fees accrue interest or earn a
return based on the performance of the Fund or other funds in the Seligman
Group of Investment Companies. The cost of such fees and earnings accrued
thereon is included in trustees' fees and expenses, and the accumulated balance
thereof at September 30, 1999, of $46,481 is included in other liabilities.
Deferred fees and related accrued earnings are not deductible for federal
income tax purposes until such amounts are paid.

5. Committed Line of Credit -- The Fund is a participant in a joint $750
million committed line of credit that is shared by substantially all funds in
the Seligman Group of Investment Companies. The Fund's borrowings are limited
to 10% of its net assets. Borrowings pursuant to the credit facility are
subject to interest at a rate equal to the overnight federal funds rate plus
0.50% on an overnight basis. The Fund incurs a commitment fee of 0.08% per
annum on its share of the unused portion of the credit facility. The credit
facility may be drawn upon only for temporary purposes and is subject to
certain other customary restrictions. The credit facility commitment expires in
June 2000, but is renewable annually with the consent of the participating
banks. For the year ended September 30, 1999, the Fund had not borrowed from
the credit facility.

                                      13
<PAGE>

Financial Highlights

   The tables below are intended to help you understand each Class's financial
performance for the past five years or from its inception if less than five
years. Certain information reflects financial results for a single share of a
Class that was held throughout the periods shown. Per share amounts are
calculated using average shares outstanding during the period. "Total return"
shows the rate that you would have earned (or lost) on an investment in each
Class, assuming you reinvested all your dividend and capital gain distributions.
Total returns do not reflect any sales charges and are not annualized for
periods of less than one year.

<TABLE>
<CAPTION>
                                                                                  CLASS A                       CLASS C
                                                              -----------------------------------------------  --------
                                                                         YEAR ENDED SEPTEMBER 30,               5/27/99*
                                                              -----------------------------------------------      TO
                                                                 1999      1998      1997      1996      1995   9/30/99
                                                              -------   -------   -------   -------   -------   -------
<S>                                                           <C>       <C>        <C>       <C>      <C>       <C>
PER SHARE DATA:
Net Asset Value, Beginning of Period..................          $8.24     $7.96     $7.82     $7.79     $7.55     $7.88
                                                                -----     -----     -----     -----     -----     -----
Income from Investment Operations:
Net investment income.................................           0.34      0.35      0.36      0.38      0.38      0.10
Net realized and unrealized investment gain (loss)
  on investments .....................................          (0.60)     0.36      0.24      0.12      0.37     (0.39)
                                                                -----     -----     -----     -----     -----     -----
Total from Investment Operations......................          (0.26)     0.71      0.60      0.50      0.75     (0.29)
                                                                -----     -----     -----     -----     -----     -----
Less Distributions:
Dividends from net investment income..................          (0.34)    (0.35)    (0.36)    (0.38)    (0.38)    (0.10)
Distributions from net realized capital gain .........          (0.15)    (0.08)    (0.10)    (0.09)    (0.13)       --
                                                                -----     -----     -----     -----     -----     -----
Total Distributions ..................................          (0.49)    (0.43)    (0.46)    (0.47)    (0.51)    (0.10)
                                                                -----     -----     -----     -----     -----     -----
Net Asset Value, End of Period ........................         $7.49     $8.24     $7.96     $7.82     $7.79     $7.49
                                                                =====     =====     =====     =====     =====     =====

TOTAL RETURN:                                                   (3.38)%    9.20%     7.89%     6.57%    10.55%    (3.84)%

RATIOS/SUPPLEMENTAL DATA:
Net Assets, end of period (000s omitted) .............        $25,142   $29,582   $30,092   $31,139   $33,251      $143
Ratio of expenses to average net assets ..............           1.21%     1.19%     1.19%     1.11%     1.21%     1.93%+
Ratio of net income to average net assets ............           4.25%     4.34%     4.60%     4.82%     5.05%     3.69%+
Portfolio turnover rate ..............................           7.80%    13.05%    32.99%     4.56%    11.78%     7.80%++
</TABLE>
- ------------------
See footnotes on page 15.
                                      14
<PAGE>

Financial Highlights

<TABLE>
<CAPTION>
                                                                                   CLASS D
                                                                ---------------------------------------------
                                                                           YEAR ENDED SEPTEMBER 30,
                                                                ---------------------------------------------
                                                                 1999      1998      1997      1996      1995
                                                                -----     -----     -----     -----     -----
<S>                                                           <C>       <C>        <C>       <C>      <C>
Per Share DATA:
Net Asset Value, Beginning of Year ....................         $8.23     $7.95     $7.81     $7.78     $7.54
                                                                -----     -----     -----     -----     -----
Income from Investment Operations:
Net investment income .................................          0.28      0.29      0.30      0.32      0.31
Net realized and unrealized gain (loss)
  on investments ......................................         (0.59)     0.36      0.24      0.12      0.37
                                                                -----     -----     -----     -----     -----
Total from Investment Operations.......................         (0.31)     0.65      0.54      0.44      0.68
                                                                -----     -----     -----     -----     -----
Less Distributions:
Dividends from net investment income ..................         (0.28)    (0.29)    (0.30)    (0.32)    (0.31)
Distributions from net gain realized ..................         (0.15)    (0.08)    (0.10)    (0.09)    (0.13)
                                                                -----     -----     -----     -----     -----
Total Distributions ...................................         (0.43)    (0.37)    (0.40)    (0.41)    (0.44)
                                                                -----     -----     -----     -----     -----
Net Asset Value, End of Year ..........................         $7.49     $8.23     $7.95     $7.81     $7.78
                                                                =====     =====     =====     =====     =====
TOTAL RETURN:                                                   (3.99)%    8.36%     7.07%     5.76%     9.53%

RATIOS/SUPPLEMENTAL DATA:
Net Assets, end of year (000s omitted).................          $856      $607      $816      $876      $426
Ratio of expenses to average net assets ...............          1.96%     1.97%     1.96%     1.88%     2.23%
Ratio of net income to average net assets..............          3.50%     3.56%     3.83%     4.05%     4.10%
Portfolio turnover rate ...............................          7.80%    13.05%    32.99%     4.56%     11.78%
</TABLE>
- ------------------
 * Commencement of offering of Class C shares.
 + Annualized.
++ For the year ended September 30, 1999.
See notes to financial statements.

                                      15
<PAGE>

Report of Independent Auditors

The Trustees and Shareholders,
Seligman Pennsylvania Municipal Fund:

We have audited the accompanying statement of assets and liabilities, including
the portfolio of investments, of Seligman Pennsylvania Municipal Fund as of
September 30, 1999, the related statements of operations for the year then ended
and of changes in net assets for each of the years in the two-year period then
ended, and the financial highlights for each of the periods presented. These
financial statements and financial highlights are the responsibility of the
Fund's management. Our responsibility is to express an opinion on these
financial statements and financial highlights based on our audits.

We conducted our audits in accordance with generally accepted auditing
standards. Those standards require that we plan and perform the audit to obtain
reasonable assurance about whether the financial statements and financial
highlights are free of material misstatement. An audit includes examining, on a
test basis, evidence supporting the amounts and disclosures in the financial
statements.

Our procedures included confirmation of securities owned as of September 30,
1999, by correspondence with the Fund's custodian. An audit also includes
assessing the accounting principles used and significant estimates made by
management, as well as evaluating the overall financial statement presentation.
We believe that our audits provide a reasonable basis for our opinion.

In our opinion, such financial statements and financial highlights present
fairly, in all material respects, the financial position of Seligman
Pennsylvania Municipal Fund as of September 30, 1999, the results of its
operations, the changes in its net assets, and the financial highlights for the
respective stated periods in conformity with generally accepted accounting
principles.

/s/ DELOITTE & TOUCHE LLP
- -------------------------
DELOITTE & TOUCHE LLP
New York, New York
November 5, 1999

                                      16
<PAGE>

TRUSTEES

John R. Galvin 2, 4
Dean, Fletcher School of Law and Diplomacy
   at Tufts University
Director, Raytheon Company

Alice S. Ilchman 3, 4
Trustee, Committee for Economic Development
Chairman, The Rockefeller Foundation

Frank A. McPherson 2, 4
Director, Kimberly-Clark Corporation
Director, Baptist Medical Center
Director, Conoco Inc.

John E. Merow  2, 4
Retired Chairman and Senior Partner,
   Sullivan & Cromwell, Law Firm
Director, Commonwealth Industries, Inc.
Director, New York Presbyterian Hospital

Betsy S. Michel 2, 4
Trustee, The Geraldine R. Dodge Foundation

William C. Morris 1
Chairman
Chairman of the Board,
   J. & W. Seligman & Co. Incorporated
Chairman, Carbo Ceramics Inc.
Director, Kerr-McGee Corporation

James C. Pitney 3, 4
Retired Partner, Pitney, Hardin, Kipp & Szuch,
   Law Firm

James Q. Riordan 3, 4
Director, KeySpan Energy Corporation
Trustee, Committee for Economic Development
Director, Public Broadcasting Service

Richard R. Schmaltz 1
Managing Director, Director of Investments,
   J. & W. Seligman & Co. Incorporated
Trustee Emeritus, Colby College

Robert L. Shafer 3, 4
Retired Vice President, Pfizer Inc.

James N. Whitson 2, 4
Director and Consultant, Sammons Enterprises, Inc.
Director, CommScope, Inc.
Director, C-SPAN

Brian T. Zino 1
President
President, J. & W. Seligman & Co. Incorporated
Chairman, Seligman Data Corp.
Director, ICI Mutual Insurance Company
Member of the Board of Governors,
   Investment Company Institute

Trustee Emeritus
Fred E. Brown
Director and Consultant,
   J. & W. Seligman & Co. Incorporated

- ----------------
Member:    1 Executive Committee
           2 Audit Committee
           3 Trustee Nominating Committee
           4 Board Operations Committee

                                      17
<PAGE>

EXECUTIVE OFFICERS

William C. Morris
Chairman

Brian T. Zino
President

Thomas G. Moles
Vice President

Lawrence P. Vogel
Vice President

Thomas G. Rose
Treasurer

Frank J. Nasta
Secretary

FOR MORE INFORMATION

Manager

J. & W. Seligman & Co. Incorporated
100 Park Avenue
New York, NY 10017

General Counsel
Sullivan & Cromwell

Independent Auditors
Deloitte & Touche LLP

General Distributor
Seligman Advisors, Inc.
100 Park Avenue
New York, NY 10017

Shareholder Service Agent
Seligman Data Corp.
100 Park Avenue
New York, NY 10017

Important Telephone Numbers

(800) 221-2450       Shareholder Services

(212) 682-7600       Outside the United States

(800) 622-4597       24-Hour Automated
                     Telephone Access Service

                                      18
<PAGE>

Glossary of Financial Terms

Capital Gain Distribution -- A payment to mutual fund shareholders of profits
realized on the sale of securities in the fund's portfolio.

Capital Appreciation/Depreciation -- An increase or decrease in the market
value of a mutual fund's portfolio securities, which is reflected in the net
asset value of the fund's shares.  Capital appreciation/depreciation of an
individual security is in relation to the original purchase price.

Compounding -- The change in the value of an investment as shareholders receive
earnings on their investment's earnings. For example, if $1,000 is invested at
a fixed rate of 7% a year, the initial investment is worth $1,070 after one
year. If the return is compounded, second year earnings will not be based on
the original $1,000, but on the $1,070, which includes the first year's
earnings.

Contingent Deferred Sales Charge (CDSC) -- Depending on the class of shares
owned, a fee charged by a mutual fund when shares are sold back to the fund.
The CDSC expires after a fixed time period.

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

Dividend Yield -- A measurement of a fund's dividend as a percentage of the
maximum offering price or net asset value.

Expense Ratio -- The cost of doing business for a mutual fund, expressed as a
percent of the fund's net assets.

Investment Objective -- The shared investment goal of a fund and its
shareholders.

Management Fee -- The amount paid by a mutual fund to its investment
advisor(s).

Multiple Classes of Shares -- Although an individual mutual fund invests in
only one portfolio of securities, it may offer investors several purchase
options which are "classes" of shares. Multiple classes permit shareholders to
choose the fee structure that best meets their needs and goals. Generally, each
class will differ in terms of how and when sales charges and certain fees are
assessed.

National Association of Securities Dealers, Inc. (NASD) -- A self-regulatory
body with authority over firms that distribute mutual funds.

Net Asset Value (NAV) Per Share -- The market worth of one fund share, obtained
by adding a mutual fund's total assets (securities, cash, and any accrued
earnings), subtracting liabilities, and dividing the resulting net assets by
the number of shares outstanding.

Offering Price -- The price at which a mutual fund's share can be purchased.
The offering price is the current net asset value per share plus any sales
charge.

Portfolio Turnover -- A measure of the trading activity in a mutual fund's
investment portfolio that reflects how often securities are bought and sold.

Prospectus -- The legal document describing a mutual fund to all prospective
shareholders. It contains information required by the Securities and Exchange
Commission, such as the fund's investment objective and policies, services,
investment restrictions, how shares are bought and sold, fund fees and other
charges, and the fund's financial highlights.

SEC Yield -- SEC Yield refers to the net income earned by a fund during a
recent 30-day period. This income is annualized and then divided by the maximum
offering price per share on the last day of the 30-day period. The SEC Yield
formula reflects semiannual compounding.

Securities and Exchange Commission -- The primary US federal agency that
regulates the registration and distribution of mutual fund shares.

Statement of Additional Information -- A document that contains more detailed
information about an investment company and that supplements the prospectus. It
is available at no charge upon request.

Total Return -- A measure of fund performance encompassing all elements of
return. Reflects the change in share price over a given period and assumes all
distributions are taken in additional fund shares. The Average Annual Total
Return represents the average annual compounded rate of return for the periods
presented.

Yield on Securities -- For bonds, the current yield is the coupon rate of
interest, divided by the purchase price. For stocks, the yield is measured by
dividing dividends paid by the maximum offering price of the stock.

- -------------
Adapted from the Investment Company Institute's 1999 Mutual Fund Fact Book.

                                      19
<PAGE>


                             SELIGMAN ADVISORS, INC.
                                 an affiliate of

                                     J&WS
                                 Logo omitted
                             J. & W. SELIGMAN & CO.
                                  INCORPORATED
                                ESTABLISHED 1864


This report is intended only for the information of shareholders or those who
have received the offering prospectus covering shares of Beneficial Interest of
Seligman Pennsylvania Municipal Fund, which contains information about the sales
charges, management fee, and other costs. Please read the prospectus carefully
before investing or sending money.

TEDPA3 9/99



                                     SELIGMAN
                             ----------------
                                 PENNSYLVANIA
                               MUNICIPAL FUND


                                  Annual Report

                               September 30, 1999

                                    ------

                               Providing Income
                             Exempt From Regular
                                  Income Tax

<PAGE>

                                                                File No. 33-5793
                                                                        811-4666


PART C.  OTHER INFORMATION

Item 23. Exhibits.

     All Exhibits have been previously filed and are incorporated by reference
herein, except Exhibits marked with an (*) which are filed herewith.


(a)       Instruments of Establishment and Designation dated May 24, 1999.
          (Incorporated by reference to Registrant's Post-Effective Amendment
          No. 20 filed on May 28, 1999.)


(a)(1)    Form of Amended and Restated Declaration of Trust of Registrant.
          (Incorporated by reference to Registrant's Post-Effective Amendment
          No. 15, filed on January 29, 1997.)

(b)       Amended and Restated Bylaws of Registrant. (Incorporated by reference
          to Registrant's Post-Effective Amendment No. 15, filed on January 29,
          1997.)

(c)       Copy of Specimen of Stock Certificate for Class D Shares.
          (Incorporated by reference to Registrant's Post-Effective Amendment
          No. 12 filed on January 31, 1994.)

(d)       Copy of Management Agreement between each Series of the Registrant and
          J. & W. Seligman & Co. Incorporated. (Incorporated by reference to
          Registrant's Post-Effective Amendment No. 15, filed on January 29,
          1997.)

(e)       Addendum to Sales/Bank Agreement. (Incorporated by reference to
          Post-Effective Amendment No. 57 to the Registration Statement of
          Seligman Capital Fund, Inc. (File No. 811-1886) filed on May 28,
          1999.)

(e)(1)    Form of Bank Agreement between Seligman Advisors, Inc. and Banks.
          (Incorporated by reference to Post-Effective Amendment No. 57 to the
          Registration Statement of Seligman Capital Fund, Inc. (File No.
          811-1886) filed on May 28, 1999.)

(e)(3)    Distributing Agreement between Registrant and Seligman Advisors, Inc.
          (Incorporated by reference to Registrant's Post-Effective Amendment
          No. 15, filed on January 29, 1997.)

(e)(4)    Sales Agreement between Dealers and Seligman Advisors, Inc.
          (Incorporated by reference to Registrant's Post-Effective Amendment
          No. 15, filed on January 29, 1997.)

(f)       Matched Accumulation Plan of J. & W. Seligman & Co. Incorporated.
          (Incorporated by reference to Registrant's Post-Effective Amendment
          No. 15, filed on January 29, 1997.)

(f)(1)    Deferred Compensation Plan for Directors of Seligman Pennsylvania
          Municipal Fund Series. (Incorporated by reference to Registrant's
          Post-Effective Amendment No. 19 filed on January 25, 1999.)

(g)       Custodian Agreement between Registrant and Investors Fiduciary Trust
          Company. (Incorporated by reference to Registrant's Post-Effective
          Amendment No. 15, filed on January 29, 1997.)

(h)       Not applicable.

(i)       Opinion and Consent of Counsel in respect of Class C shares.
          (Incorporated by reference to Registrant's Post-Effective Amendment
          No. 20 filed on May 28, 1999.)

(i)(1)    Opinion and Consent of Counsel. (Incorporated by reference to
          Registrant's Post-Effective Amendment No. 15, filed on January 29,
          1997.)


(j)       *Consent of Independent Auditors.



                                       C-1
<PAGE>

                                                                File No. 33-5793
                                                                        811-4666


PART C.   OTHER INFORMATION (continued)


(j)(1)    *Consent of Pennsylvania Counsel.


(k)       Not applicable.


(l)       Form of Purchase Agreement for Initial Capital for Class C shares.
          (Incorporated by reference to Registrant's Post-Effective Amendment
          No. 20 filed on May 28, 1999.)


(l)(1)    Purchase Agreement for Initial Capital for Class D shares.
          (Incorporated by reference to Registrant's Post-Effective Amendment
          No. 15, filed on January 29, 1997.)


(m)       Amended Administration, Shareholder Services and Distribution Plan of
          Registrant. (Incorporated by reference to Registrant's Post-Effective
          Amendment No. 20 filed on May 28, 1999.)


(m)(1)    Amended Administration, Shareholder Services and Distribution
          Agreement between Seligman Advisors, Inc. and Dealers. (Incorporated
          by reference to Post-Effective Amendment No. 57 to the Registration
          Statement of Seligman Capital Fund, Inc. (File No. 811-1886) filed on
          May 28, 1999.)



(n)       Plan of Multiple Classes of Shares (three Classes) pursuant to Rule
          18f-3 under the Investment Company Act of 1940. (Incorporated by
          reference to Registrant's Post-Effective Amendment No. 20 filed on May
          28, 1999.)


(p)       *Code of Ethics.



(Other Exhibits)    Powers of Attorney. (Incorporated by reference to
                    Registrant's Post-Effective Amendment No. 16, filed on
                    January 27, 1998.)

Item 24.  Persons Controlled by or Under Common Control with Registrant. None.

Item 25.  Indemnification. Reference is made to the provisions of Article V of
          Registrant's Amended and Restated Declaration of Trust filed as
          Exhibit 24(b)(1) and Article VII of Registrant's Amended and Restated
          By-Laws filed as Exhibit 24(b)(2) to Registrant's Post-Effective
          Amendment No. 15 to the Registration Statement.

          Insofar as indemnification for liability arising under the Securities
          Act of 1933, as amended, may be permitted to trustees, 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 trustee, officer or controlling person of the
          registrant in the successful defense of any action, suit or
          proceeding) is asserted by such trustee, 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.


                                      C-2
<PAGE>

                                                                File No. 33-5793
                                                                        811-4666


PART C.   OTHER INFORMATION (continued)


Item 26.  Business and Other Connections of Investment Adviser. J. & W. Seligman
          & Co. Incorporated, a Delaware corporation (Seligman), is the
          Registrant's investment manager. Seligman also serves as investment
          manager to nineteen associated investment companies. They are Seligman
          Capital Fund, Inc., Seligman Cash Management Fund, Inc., Seligman
          Common Stock Fund, Inc., Seligman Communications and Information Fund,
          Inc., Seligman Frontier Fund, Inc., Seligman Growth Fund, Inc.,
          Seligman 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 New Technologies Fund, Inc., Seligman Portfolios, Inc.,
          Seligman Quality Municipal Fund, Inc., Seligman Select Municipal Fund,
          Inc., Seligman Time Horizon/Harvester Series, Inc., Seligman Value
          Fund Series, Inc. and Tri-Continental Corporation.

          Seligman has an investment advisory service division which provides
          investment management or advice to private clients. The list required
          by this Item 26 of officers and directors of Seligman, 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 Seligman pursuant to the
          Investment Advisers Act of 1940, as amended (SEC File No. 801-15798)
          on March 31, 1999.


Item 27.  Principal Underwriters.

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


          Seligman Capital Fund, Inc.
          Seligman Cash Management Fund, Inc.
          Seligman Common Stock Fund, Inc.
          Seligman Communications and Information Fund, Inc.
          Seligman Frontier Fund, Inc.
          Seligman Growth Fund, Inc.
          Seligman 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 Portfolios, Inc.
          Seligman Time Horizon/Harvester Series, Inc.
          Seligman Value Fund Series, Inc.



                                      C-3
<PAGE>

                                                                File No. 33-5793
                                                                        811-4666


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>
<CAPTION>

                             Seligman Advisors, Inc.
                             As of December 31, 1999

         (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, Division             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

 Matthew A. Digan*                             Senior Vice President, Domestic             None
                                               Funds
 Jonathan G. Evans                             Senior Vice President, Sales                None
 222 Fairmont Way
 Ft. Lauderdale, FL  33326

 T. Wayne Knowles                              Senior Vice President, Division             None
 104 Morninghills Court                        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

 Michelle L. McCann-Rappa*                     Senior Vice President, Retirement           None
                              Plans
 Scott H. Novak*                               Senior Vice President, Insurance            None

 Jeff Rold                                     Senior Vice President, Product              None
 181 East 73rd Street, Apt 20B                 Business Management
 New York, New York  10021

</TABLE>


                                       C-4
<PAGE>


                                                                File No. 33-5793
                                                                        811-4666


PART C.  OTHER INFORMATION (continued)



                             Seligman Advisors, Inc.
                             As of December 31, 1999

<TABLE>
<CAPTION>
                 (1)                                           (2)                                         (3)
         Name and Principal                            Positions and Offices                       Positions and Offices
          Business Address                              with Underwriter                            with Registrant
         ------------------                            ----------------------                      ---------------------
         <S>                                           <C>                                         <C>
         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 Drive
         Rumson, NJ  07760

         Charles L. von Breitenbach, II*               Senior Vice President, Managed              None
                                                       Money
         J. Brereton Young*                            Senior Vice President, Director             None
                                                       of Sales Development
         Jeffrey S. Dean*                              Vice President, Business Analysis           None

         Mason S. Flinn                                Vice President, Regional Retirement         None
         2130 Fillmore Street                          Plans Manager
         BMB 280
         San Francisco, CA  94115-2224

         Marsha E. Jacoby*                             Vice President, Offshore Business           None
                                                       Manager
         Jody Knapp                                    Vice President, Regional Retirement         None
         17011 East Monterey Drive                     Plans Manager
         Fountain Hills, AZ  85268

         David W. Mountford                            Vice President, Regional Retirement         None
         7131 NW 46th Street                           Plans Manager
         Lauderhill, FL  33319

         Ronald W. Pond*                               Vice President, Portfolio Advisor           None

         Jeffery C. Pleet*                             Vice President, Regional Retirement         None
                                                       Plans Manager
         Tracy A. Salomon*                             Vice President, Retirement Marketing        None

         Helen Simon*                                  Vice President, Sales Administration        None

         Gary A. Terpening*                            Vice President, Director of Business        None
                                                       Development
         Charles E. Wenzel                             Vice President, Regional Retirement         None
         117 Carpetners Row                            Plans Manager
         Mount Chanin, DE  19710

         Daniel Chambers                               Regional Vice President                     None
         4618 Lorraine Avenue
         Dallas, TX  75209

         Richard B. Callaghan                          Regional Vice President                     None
         7821 Dakota Lane
         Orland Park, IL  60462

</TABLE>



                                      C-5
<PAGE>


PART C.  OTHER INFORMATION (continued)

<TABLE>
<CAPTION>

                             Seligman Advisors, Inc.
                             As of December 31, 1999

                 (1)                                           (2)                                         (3)
         Name and Principal                            Positions and Offices                       Positions and Offices
          Business Address                             with Underwriter                            with Registrant
         -------------------                           ----------------------                      ---------------------
         <S>                                           <C>                                         <C>
         Kevin Casey                                   Regional Vice President                     None
         19 Bayview Avenue
         Babylon, NY  11702

         Bradford C. Davis                             Regional Vice President                     None
         241 110th Avenue SE
         Bellevue, WA  98004

         Cathy Des Jardins                             Regional Vice President                     None
         PMB 152
         1705 14th Street
         Boulder, CO  80302

         Kenneth Dougherty                             Regional Vice President                     None
         8640 Finlarig Drive
         Dublin, OH  43017

         Kelli A. Wirth Dumser                         Regional Vice President                     None
         7121 Jardiniere Court
         Charlotte, NC  28226

         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

         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
         7105 Harbour Landing
         Alpharetta, GA  30005

         Leslie A. Mudd                                Regional Vice President                     None
         5243 East Calle Redonda
         Phoenix, AZ  85018

         Tim O'Connell                                 Regional Vice President                     None
         11908 Acacia Glen Court
         San Diego, CA  92128

         George M. Palmer, Jr.                         Regional Vice President                     None
         1805 Richardson Place
         Tampa, FL  33606

         Thomas Parnell                                Regional Vice President                     None
         1575 Edgecomb Road
         St. Paul, MN  55116

         Craig Prichard                                Regional Vice President                     None
         9207 Cross Oaks Court
         Fairfax Station, VA  22039

</TABLE>


                                      C-6
<PAGE>



PART C.  OTHER INFORMATION (continued)

<TABLE>
<CAPTION>
                             Seligman Advisors, Inc.
                             As of December 31, 1999

                 (1)                                           (2)                                         (3)
         Name and Principal                            Positions and Offices                       Positions and Offices
          Business Address                             with Underwriter                            with Registrant
         ------------------                            ---------------------                       ---------------------

         <S>                                           <C>                                         <C>
         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

         James Taylor                                  Regional Vice President                     None
         290 Bellington Lane
         Creve Coeur, MO  63141

         Steve Wilson                                  Regional Vice President                     None
         83 Kaydeross Park Road
         Saratoga Springs, NY  12866

         Frank J. Nasta*                               Secretary                                   Secretary

         Aurelia Lacsamana*                            Treasurer                                   None

         Gail S. Cushing*                              Assistant Vice President, National          None
                                                       Accounts Manager
         Sandra G. Floris*                             Assistant Vice President, Order Desk        None

         Keith Landry*                                 Assistant Vice President, Order Desk        None

         Albert A. Pisano*                             Assistant Vice President and                None
                                                       Compliance Officer
         Joyce Peress*                                 Assistant Secretary                         Assistant Secretary

</TABLE>

* The principal business address of each of these directors and/or officers is
100 Park Avenue, New York, NY 10017.

         (c)  Not Applicable.

Item 28.  Location of Accounts and Records.

          Custodian:        Investors Fiduciary Trust Company

                            801 Pennsylvania
                            Kansas City, Missouri  64105
                            and
                            Seligman Pennsylvania Municipal Fund Series
                            100 Park Avenue
                            New York, NY  10017

Item 29.  Management Services.  Not Applicable.

Item 30.  Undertakings. The Registrant undertakes: (1) if requested to do so by
          the holders of at least 10% of its outstanding shares, to call a
          meeting of shareholders for the purpose of voting upon the removal of
          a director or directors and to assist in communications with other
          shareholders as required by Section 16(c) of the Investment Company
          Act of 1940, as amended; and (2) to furnish to each person to whom a
          prospectus is delivered, a copy of the Registrant's latest Annual
          Report to shareholders, upon request and without charge.


                                      C-7
<PAGE>


                                   SIGNATURES


Pursuant to the requirements of the Securities Act of 1933, and the Investment
Company Act of 1940, the Registrant certifies that it meets all of the
requirements for effectiveness of this Post-Effective Amendment No. 21 to its
Registraiton Statement pursuant to Rule 485(b) under the Securities Act of 1933
and has duly caused this Post-Effective Amendment No. 21 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 27th day of
January, 2000.


                            SELIGMAN PENNSYLVANIA MUNICIPAL FUND SERIES




                            By: /s/ William C. Morris
                                --------------------------------
                                    William C. Morris, Chairman


Pursuant to the requirements of the Securities Act of 1933, this Post-Effective
Amendment No. 21 has been signed below by the following persons in the
capacities indicated on January 27, 2000.


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


/s/ William C. Morris
- -------------------------                Chairman of the Trustees (Principal
     William C. Morris                   Executive Officer) and Trustee


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


/s/ Thomas G. Rose
- -------------------------                Treasurer (Principal financial and
     Thomas G. Rose                      Accounting Officer)




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


<PAGE>


                   SELIGMAN PENNSYLVANIA MUNICIPAL FUND SERIES
                     Post-Effective Amendment No. 21 to the
                       Registration Statement on Form N-1A


                                  EXHIBIT INDEX



Form N-1A Item No.                     Description
- ------------------                     -----------

Item 23(j)                             Consent of Independent Auditors

Item 23(j)(1)                          Consent of Pennsylvania Counsel

Item 23(p)                             Codes of Ethics





CONSENT OF INDEPENDENT AUDITORS

Seligman Pennsylvania Municipal Fund:

We consent to the use in Post-Effective Amendment No. 21 to Registration
Statement No. 33-5793 of our report dated November 5, 1999, appearing in the
Annual Report to Shareholders for the year ended September 30, 1999,
incorporated by reference in the Statement of Additional Information, and to the
reference to us under the caption "Financial Highlights" in the Prospectus,
which is also part of such Registration Statement.



/s/ Deloitte & Touche LLP

New York, New York
January 24, 2000



                                   Law Offices

                     Ballard, Spahr, Andrews & Ingersol llp

                         1735 Market Street, 51st Floor
                           Philadelphia, PA 19103-7599
                                  215-665-8500
                                fax: 215-864-8999
                            [email protected]


                                      December 15, 1999


Seligman Pennsylvania Municipal Fund Series
100 Park Avenue
New York, NY 10017

Ladies and Gentlemen:

     With respect to Post-Effective Amendment No. 21 to the Registration
Statement on Form N-1A under the Securities Act of 1933, as amended, of Seligman
Pennsylvania Municipal Fund Series, we have reviewed the material relative to
Pennsylvania Taxes in the Registration Statement. Subject to such review, our
opinion as delivered to you and as filed with the Securities and Exchange
Commission remains unchanged.

     We consent to the filing of this consent as an exhibit to the Registration
Statement and to the reference to us under the heading "Pennsylvania Taxes." In
giving such consent, we do not thereby admit that we are in the category of
persons whose consent is required under Section 7 of the Securities Act of 1933,
as amended.


                                      Very truly yours,


                                      /s/Ballard, Spahr, Andrews & Ingersol llp
                                      Ballard, Spahr, Andrews & Ingersol llp




                                 CODE OF ETHICS

                       J. & W. Seligman & Co. Incorporated
                             Seligman Advisors, Inc.
                             Seligman Services, Inc.
                               Seligman Data Corp.
                          Seligman International, Inc.
                        Seligman International UK Limited
                   The Seligman Group of Investment Companies

                                 I. Introduction

A primary duty of all directors, officers and employees (collectively
"Employees") of J. & W. Seligman & Co. Incorporated, its subsidiaries and
affiliates (collectively, "Seligman") is to be faithful to the interest of the
various Seligman advisory clients, including the registered and unregistered
companies advised by Seligman (collectively, "Clients"). Directors of the
Seligman Registered Investment Companies also have a duty to the Seligman
Registered Investment Companies and their shareholders. Persons who are
Disinterested Directors are "Employees" for purposes of this Code of Ethics.

Through the years, Seligman and its predecessor organizations have had a
reputation of maintaining the highest business and ethical standards and have
been favored with the confidence of investors and the financial community. Such
a reputation and confidence are not easily gained and are among the most
precious assets of Seligman. In large measure, they depend on the devotion and
integrity with which each Employee discharges his or her responsibilities. Their
preservation and development must be a main concern of each Employee, and each
Employee has a primary obligation to avoid any action or activity that could
produce conflict between the interest of the Clients and that Employee's
self-interest.

The purpose of this Code of Ethics ("Code") is to set forth the policies of
Seligman in the matter of conflicts of interest and to provide a formal record
for each Employee's reference and guidance. This Code is also designed to
prevent any act, practice or course of business prohibited by the rules and
regulations governing our industry.

Each Employee owes a fiduciary duty to each Client. Therefore, all Employees
must avoid activities, interests and relationships that might appear to
interfere with making decisions in the best interest of the Clients.

As an Employee, you must at all times:

1.   Avoid serving your own personal interests ahead of the interests of
     Clients. You may not cause a Client to take action, or not to take action,
     for your personal benefit rather than the Client's benefit.

2.   Avoid taking inappropriate advantage of your position. The receipt of
     investment opportunities, perquisites or gifts from persons seeking
     business with Clients or with Seligman could call into question the
     exercise of your better judgment. Therefore, you must not give or receive
     benefits that would compromise your ability to act in the best interest of
     the Clients.

3.   Conduct all personal Securities Transactions in full compliance with the
     Code, including the pre-authorization and reporting requirements, and
     comply fully with the Seligman Insider Trading Policies and Procedures (See
     Appendix A).

While Seligman encourages you and your families to develop personal investment
programs, you must not take any action that could cause even the appearance that
an unfair or improper action has been taken. Accordingly, you must follow the
policies set forth below with respect to trading in your Account(s). This Code
places reliance on the good sense and judgment of you as an Employee; however,
if you are unclear as to the Code's meaning, you should seek the advice of the
Law and Regulation Department and assume the Code will be interpreted in the
most restrictive manner. Questionable situations should be resolved in favor of
Clients.


<PAGE>


Technical compliance with the Code's procedures will not insulate from scrutiny
any trades that indicate a violation of your fiduciary duties.

Application of the Code to Disinterested Directors

Disinterested Directors are only subject to the reporting requirements in
Section III.5(b) of the Code. Disinterested Directors are not subject to other
provisions of the Code but are subject to the requirements of the federal
securities laws and other applicable laws, such as the prohibition on trading in
securities of an issuer while in possession of material non-public information.


                                 II. Definitions

     (a)  "Accounts" means all Employee Accounts and Employee Related Accounts.

     (b)  "Beneficial Interest" is broadly interpreted. The SEC has said that
          the final determination of Beneficial Interest is a question to be
          determined in the light of the facts of each particular case. The
          terms Employee Account and Employee Related Account, as defined below,
          generally define Beneficial Interest. However, the meaning of
          "Beneficial Interest" may be broader than that described below. If
          there are any questions as to Beneficial Interest, please contact the
          Director of Compliance, General Counsel or Associate General Counsel.

          (i)  "Employee Account" means the following securities Accounts: (i)
               any of your personal account(s); (ii) any joint or
               tenant-in-common account in which you have an interest or are a
               participant; (iii) any account for which you act as trustee,
               executor, or custodian; (iv) any account over which you have
               investment discretion or otherwise can exercise control,
               including the accounts of entities controlled directly or
               indirectly by you; (v) any account in which you have a direct or
               indirect interest through a contract, arrangement or otherwise
               (e.g., economic, voting power, power to buy or sell, or
               otherwise); (vi) any account held by pledges, or for a
               partnership in which you are a member, or by a corporation which
               you should regard as a personal holding company; (vii) any
               account held in the name of another person in which you do not
               have benefits of ownership, but which you can vest or revest
               title in yourself at once or some future time; (viii) any account
               of which you have benefit of ownership; and (ix) accounts
               registered by custodians, brokers, executors or other fiduciaries
               for your benefit.

          (ii) "Employee Related Account" means any Account of (i) your spouse
               and minor children and (ii) any account of relatives or any other
               persons to whose support you materially contribute, directly or
               indirectly.

     (c)  "Disinterested Director" means a director or trustee of a Seligman
          Registered Investment Company who is not an "interested person" of
          such investment company within the meaning of Section 2(a)(19) of the
          Investment Company Act of 1940.

     (d)  "Equivalent Security" includes, among other things, an option to
          purchase or sell a Security or an instrument convertible or
          exchangeable into a Security.

     (e)  "Investment Team" means one or more Investment Teams formed by the
          Manager in various investment disciplines to review and approve
          Securities for purchase and sale by Client Accounts. This includes a
          team's leader, portfolio managers, research analysts, traders and
          their direct supervisors.

     (f)  "Security" includes, among other things, stocks, notes, bonds,
          debentures, and other evidences of indebtedness (including loan
          participation and assignments), limited partnership interests,
          investment contracts, and all derivative instruments (e.g., options
          and warrants).


<PAGE>


     (g)  "Securities Transaction" means a purchase or sale of a Security.

     (h)  "Seligman Registered Investment Company" means an investment company
          registered under the Investment Company Act of 1940 for which Seligman
          serves as investment manager or adviser.

                      III. Personal Securities Transactions

1.   Prohibited Transactions

     These apply to all of your Accounts.

     (a)  Seven-Day Blackout: If you are a member of an Investment Team,
          Securities Transactions are prohibited within seven calendar days
          either before or after the purchase or sale of the relevant security
          (or an Equivalent Security) by a Client whose Account is managed by
          your Investment Team.

     (b)  Intention to Buy or Sell for Clients: Securities Transactions are
          prohibited at a time when you intend, or know of another's intention,
          to purchase or sell that Security (or an Equivalent Security) on
          behalf of a Client.

     (c)  Sixty-Day Holding Period: Profits on Securities Transactions made
          within a sixty-day period are prohibited and must be disgorged. This
          is a prohibition of short term trading. Specifically,

          o    Purchase of a Security within 60 days of your sale of the
               Security (or an Equivalent Security), at a price that is less
               than the price in the previous sale is prohibited.

          o    Sale of a Security within the 60 day period of your purchase of
               the Security (or an Equivalent Security), at a price that is
               greater than the price in the previous purchase is prohibited.
               Examples are as follows:

          1.   Employee purchases 100 shares of XYZ ($10 a share) on January 1.
               Employee sells 100 shares of XYZ ($15 a share) on February 15.
               Employee must disgorge $500.

          2.   Employee purchases 100 shares of XYZ ($10 a share) on January 1.
               Employee purchases 50 shares of XYZ ($12 a share) on January 30.
               Employee sells 50 shares of XYZ ($15 a share) on March 15.
               Employee must disgorge $150. (The March 15 sale may not be
               matched to the January 1 purchase).

          3.   Employee purchases 100 shares of XYZ ($10 a share) on January 1.
               Employee sells 100 shares of XYZ ($10 a share) on February 1.
               Employee purchases 100 shares of XYZ ($9 a share) on March 1
               Employee must disgorge $100. (The February 1 sale is permissible
               because no profit was made. However, the March 1 purchase is
               matched against the February 1 sale resulting in a $100 profit).

     (d)  Restricted Transactions: Transactions in a Security are prohibited (i)
          on the day of a purchase or sale of the Security by a Client, or (ii)
          anytime a Client's order in the Security is open on the trading desk.
          Other Securities may be restricted from time to time as deemed
          appropriate by the Law and Regulation Department.


<PAGE>


     (e)  Short Sales: If you are a member of an Investment Team, you may not
          engage in any short sale of a Security if, at the time of the
          transaction, any Client managed by your Team has a long position in
          that same Security. However, this prohibition does not prevent you
          from engaging short sales against the box and covered call writing, as
          long as these personal trades are in accordance with the sixty-day
          holding period described above.

     (f)  Public Offerings: Acquisitions of Securities in initial and secondary
          public offerings are prohibited, unless granted an exemption by the
          Director of Compliance. An exemption for an initial public offering
          will only be granted in certain limited circumstances, for example,
          the demutualization of a savings bank.

     (g)  Private Placements: Acquisition of Securities in a private placement
          is prohibited absent prior written approval by the Director of
          Compliance.

     (h)  Market Manipulation: Transactions intended to raise, lower, or
          maintain the price of any Security or to create a false appearance of
          active trading are prohibited.

     (i)  Inside Information: You may not trade, either personally or on behalf
          of others, on material, non-public information or communicate
          material, non-public information to another in violation of the law.
          This policy extends to activities within and outside your duties at
          Seligman. (See Appendix A).

2.   Maintenance of Accounts

     All Accounts that have the ability to engage in Securities Transactions
     must be maintained at Ernst & Company (Investec) and/or the specific
     Merrill Lynch branch office located at 712 Fifth Avenue, New York, NY. You
     are required to notify the Director of Compliance of any change to your
     account status. This includes opening a new Account, converting,
     transferring or closing an existing account or acquiring Beneficial
     Interest in an Account through marriage or otherwise. You must place all
     orders for Securities Transactions in these Account(s) with the Equity
     Trading Desk or the appropriate Fixed Income Team as set forth in Section
     III.3 ("Trade Pre-authorization Requirements").

     The Director of Compliance may grant exceptions to the foregoing
     requirements on a case by case basis. All requests for exceptions must be
     applied for in writing and submitted for approval to the Director of
     Compliance and will be subject to certain conditions.

3.   Trade Pre-authorization Requirements

     All Securities Transactions in an Employee Account or Employee Related
     Account must be pre-authorized, except for Securities Transactions set
     forth in Section III.4 ("Exempt Transactions").

     (a)  Trade Authorization Request Form: Prior to entering an order for a
          Securities Transaction in an Employee Account or Employee Related
          Account, which is subject to pre-authorization, you must complete a
          Trade Authorization Request Form (set forth in Appendix B) and submit
          the completed Form (faxed or hand delivered) to the Director of
          Compliance (or designee).

     (b)  Review of the Form and Trade Execution: After receiving the completed
          Trade Authorization Request Form, the Director of Compliance (or
          designee) will review the information and, as soon as practical,
          determine whether to authorize the proposed Securities Transaction.
          The authorization, date and time of the authorization must be
          reflected on the Form. Once approved the order may then be executed by
          Equity Trading Desk or the appropriate Fixed Income Team, except for
          accounts for which an exemption was granted under Section III.2.


<PAGE>


     (c)  Length of Trade Authorization Approval: Any authorization, if granted,
          is effective until the earliest of (i) its revocation, (ii) the close
          of business on the day from which authorization was granted or (iii)
          your discovery that the information in the Trade Authorization Request
          Form is no longer accurate. If the Securities Transaction was not
          placed or executed within that period, a new pre-authorization must be
          obtained. A new pre-authorization need not be obtained for orders
          which cannot be filled in one day due to an illiquid market, so long
          as such order was placed for execution on the day the original
          pre-authorization was given.

     No order for a Securities Transaction may be placed prior to the Director
     of Compliance (or designee) receiving the completed Trade Pre-authorization
     Form and approving the transaction. In some cases, trades may be rejected
     for a reason that is confidential.

4.   Exempt Transactions

     The prohibitions of this Code shall not apply to the following Securities
     Transactions in your Account(s):

     (a)  Purchases or sales of Securities which are non-volitional (i.e., not
          involving any investment decision or recommendation).

     (b)  Purchases of Securities through certain corporate actions (such as
          stock dividends, dividend reinvestments, stock splits, mergers,
          consolidations, spin-offs, or other similar corporate reorganizations
          or distributions generally applicable to all holders of the same class
          of Securities).

     (c)  Purchases of Securities effected upon the exercise of rights issued by
          an issuer pro rata to all holders of a class of its Securities, to the
          extent such rights were acquired from the issuer.

     (d)  Purchases or sales of open-end registered investment companies, U.S.
          Government Securities and money market instruments (e.g., U.S.
          Treasury Securities, bankers acceptances, bank certificates of
          deposit, commercial paper and repurchase agreements).

     (e)  Purchases of Securities which are part of an automatic dividend
          reinvestment plan or stock accumulation plan; however, quarterly
          account statement of such plans must be sent to the Director of
          Compliance.

     (f)  Securities Transactions that are granted a prior exemption by the
          Director of Compliance, the General Counsel or the Associate General
          Counsel.

5.   Reporting

     (a)  You must arrange for the Director of Compliance to receive from the
          executing broker, dealer or bank duplicate copies of each confirmation
          and account statement for each Securities Transaction in an Employee
          Account or Employee Related Account.

     (b)  If you are a Disinterested Director you are required to report the
          information specified below with respect to any Securities Transaction
          in any Securities Account in which you have Beneficial Interest, if
          you knew, or in the ordinary course of fulfilling your official duties
          as a Disinterested Director, should have known, that during 15 days
          immediately before or after the date of your transaction, the Security
          (or Equivalent Security) was purchased or sold by a Seligman
          Registered Investment Company or considered for purchase or sale by a
          Seligman Registered Investment Company. Such report shall be made not
          later than 10 days after the end of the calendar quarter in which the
          Transaction was effected and shall contain the following information:


<PAGE>


          (i)       The date of the transaction, the name of the company, the
                    number of shares, and the principal amount of each Security
                    involved;

          (ii)      The nature of the transaction (i.e., purchase, sale or any
                    other type of acquisition or disposition);

          (iii)     The price at which the transaction was effected;

          (iv)      The name of the broker, dealer or bank with or through whom
                    the transaction was effected; and

          (v)       The date the report is submitted.

     (c)  You are required to disclose all Securities beneficially owned by you
          within ten days of commencement of employment and at the end of each
          calendar year within 10 days thereafter (See Appendix C).

     (d)  You are also required to disclose all Employee and Employee Related
          Securities Accounts, Private Securities Transactions and Outside
          Activities, Affiliations and Investments upon commencement of
          employment and annually thereafter (See Appendix D).

     (e)  Any report may contain a statement that the report shall not be
          construed as an admission by you, that you have any direct or indirect
          beneficial ownership in the Security to which the report relates.

     (f)  The Director of Compliance or his designee will review all reports.

6.   Dealings with the Clients

     You should not have any direct or indirect investment interest in the
     purchase or sale of any Security or property from or to Clients. This is a
     prohibition against dealings between you and the Clients and is not
     intended to preclude or limit investment transactions by you in Securities
     or property, provided such transactions are not in conflict with the
     provisions of this Code.

7.   Preferential Treatment, Favors and Gifts

     You are prohibited from giving and receiving gifts of significant value or
     cost from any person or entity that does business with or on behalf of any
     Client. You should also avoid preferential treatment, favors, gifts and
     entertainment which might, or might appear to, influence adversely or
     restrict the independent exercise of your best efforts and best judgments
     on behalf of the Clients or which might tend in any way to impair
     confidence in Seligman by Clients. Cash Gifts that do not exceed $100 in
     value per person for a calendar year are permissible. Ordinary courtesies
     of business life, or ordinary business entertainment, and gifts of
     inconsequential value are also permissible. However, they should not be so
     frequent nor so extensive as to raise any question of impropriety.

8.   Outside Business Activities and Service as a Director, Trustee or in a
     Fiduciary Capacity of any Organization

     You may not engage in any outside business activities or serve as a
     Director, Trustee or in a fiduciary capacity of any organization, without
     the prior written consent of the Director of Compliance.


<PAGE>


9.   Remedies of the Code

     Upon discovering a violation of this Code, sanctions may be imposed against
     the person concerned as may be deemed appropriate, including, among other
     things, a letter of censure, fines, suspension or termination of personal
     trading rights and/or employment.

     As part of any sanction, you may be required to absorb any loss from the
     trade. Any profits realized, as a result of your personal transaction that
     violates the Code must be disgorged to a charitable organization, which you
     may designate.

10.  Compliance Certification

     At least once a year, you will be required to certify on the Employee
     Certification Form (set forth in Appendix E) that you have read and
     understand this Code, that you have complied with the requirements of the
     Code, and that you have disclosed or reported all personal Securities
     Transactions pursuant to the provisions of the Code.

11.  Inquiries Regarding the Code

     If you have any questions regarding this Code or any other
     compliance-related matter, please call the Director of Compliance, or in
     his absence, the General Counsel or Associate General Counsel.


                                                     ---------------------------
                                                           William C. Morris
                                                               Chairman


December 22, 1966
Revised:      March 8, 1968                         December 7, 1990
              January 14, 1970                      November 18, 1991
              March 21, 1975                        April 1, 1993
              May 1, 1981                           November 1, 1994
              May 1, 1982                           February 28, 1995
              April 1, 1985                         November 19, 1999*
              March 27, 1989

*Refers to the incorporation of the Code of Ethics of the Seligman Investment
Companies originally adopted June 12, 1962, as amended.


<PAGE>


                                                                      Appendix A
                                                       Amended November 19, 1999

  J. & W. Seligman & Co. Incorporated - Insider Trading Policies and Procedures

SECTION I.  BACKGROUND

Introduction

     United States law creates an affirmative duty on the part of broker-dealers
and investment advisers to establish, maintain and enforce written policies and
procedures that provide a reasonable and proper system of supervision,
surveillance and internal control to prevent the misuse of material, non-public
information by the broker-dealer, investment adviser or any person associated
with them. The purpose of these procedures is to meet those requirements. The
following procedures apply to J. & W. Seligman & Co. Incorporated, its
subsidiaries and affiliates (collectively, "Seligman") and all officers,
directors and employees (collectively, "Employees") thereof.

Statement of Policy

     No Employee may trade, either personally or on behalf of others, on
material, non-public information or communicate material, non-public information
to another in violation of the law. This policy extends to activities within and
outside their duties at Seligman. Each Employee must read, acknowledge receipt
and retain a copy of these procedures.

Inside Information

     The term "insider trading" is not defined in the federal securities laws,
but generally is used to refer to the use of material, non-public information to
trade in securities or to communicate material, non-public information to
others.

     While the law concerning insider trading is not static, it is understood
that the law generally prohibits:

     A.   trading by an insider, while in possession of material, non-public
          information, or

     B.   trading by a non-insider, while knowingly in possession of material,
          non-public information, where the information either was disclosed to
          the non-insider in violation of an insider's duty to keep it
          confidential or was misappropriated, or

     C.   communicating material, non-public information to others.

     The elements of insider trading and the penalties for such unlawful conduct
are discussed below. If you have any questions after reviewing these procedures,
you should consult the Director of Compliance, General Counsel or Associate
General Counsel.

1.   Who Is An Insider?

     The concept of "insider" is broad. It includes Employees of a company. In
     addition, a person can be a "temporary insider" if he or she enters into a
     special confidential relationship in the conduct of a company's affairs and
     as a result is given access to information solely for the company's
     purposes. A temporary insider can include, among others, a company's
     attorneys, accountants, consultants, bank lending officers, and the
     Employees of such organizations. In addition, Seligman may become a
     temporary insider of a company it advises or for which it performs other
     services. According to the Supreme Court, the company must expect the
     outsider to keep the disclosed non-public information


<PAGE>


     confidential and the relationship must at least imply such a duty before
     the outsider will be considered an insider.

2.   What Is Material Information?

     Trading on inside information is not a basis for liability unless the
     information is material. "Material information" generally is defined as
     information for which there is a substantial likelihood that a reasonable
     investor would consider it important in making his or her investment
     decisions, or information that is reasonably certain to have a substantial
     affect on the price of a company's securities. Information that Employees
     should consider material includes, but is not limited to: dividend changes,
     earnings estimates, changes in previously released earnings estimates,
     significant merger or acquisition proposals or agreements, major
     litigation, liquidation problems and extraordinary management developments.
     In addition, information about major contracts or new customers could also
     qualify as material, depending upon the importance of such developments to
     the company's financial condition or anticipated performance.

     Material information does not have to relate to a company's business. For
     example, in Carpenter v. U.S., 408 U.S. 316 (1987), the Supreme Court
     considered as material certain information about the contents of a
     forthcoming newspaper column that was expected to affect the market price
     of a Security. In that case, a Wall Street Journal reporter was found
     criminally liable for disclosing to others the dates that reports on
     various companies would appear in the Journal and whether those reports
     would be favorable or not.

3.   What Is Non-Public Information?

     Information is non-public until it has been effectively communicated to the
     market place. One must be able to point to some fact to show that the
     information is generally public. For example, information found in a report
     filed with the SEC, or appearing in Dow Jones, Reuters Economic Services,
     The Wall Street Journal or other publications of general circulation would
     be considered public. However, see Section II, Paragraph 2.

4.   Penalties for Insider Trading

     Penalties for trading on or communicating material, non-public information
     are severe, both for individuals involved in such unlawful conduct and
     their employers. A person can be subject to some or all of the penalties
     below even if he or she does not personally benefit from the violation.
     Penalties include:

          -    Civil injunctions

          -    Disgorgement of profits

          -    Jail sentences

          -    Fines for the person who committed the violation of up to three
               times the profit gained or loss avoided, whether or not the
               person actually benefited, and

          -    Fines for the employer or other controlling person of up to the
               greater of $1,000,000 or three times the amount of the profit
               gained or loss avoided.

     In addition, any violation of policies and procedures set forth herein can
be expected to result in serious sanctions by Seligman, including dismissal of
the persons involved.


<PAGE>


SECTION II.  PROCEDURES

Procedures to Implement Policy Against Insider Trading.

     The following procedures have been established to assist the Employees of
Seligman in avoiding insider trading, and to aid Seligman in preventing,
detecting and imposing sanctions against insider trading. Every Employee of
Seligman must follow these procedures or risk serious sanctions, including
dismissal, substantial personal liability and criminal penalties. If you have
any questions about these procedures you should consult the Director of
Compliance, the General Counsel or Associate General Counsel.

1.   Identifying Inside Information.

     Before trading for yourself or others (including investment companies and
     private Accounts managed by Seligman), in the securities of a company about
     which you may have potential inside information, ask yourself the following
     questions:

     a.   Is the information material? Is this information that an investor
          would consider important in making his or her investment decisions? Is
          this information that would substantially affect the market price of
          the securities if generally disclosed?

     b.   Is the information non-public? To whom has this information been
          provided? Has the information been effectively communicated to the
          marketplace in a publication of general circulation or does it fall
          within the circumstances set forth in paragraph 2 below.

     If, after consideration of the above, you believe that the information is
material and non-public, or if you have questions as to whether the information
is material and non-public, you should take the following steps:

     c.   Report the matter immediately to the Director of Compliance, General
          Counsel or Associate General Counsel.

     d.   Do not purchase or sell the securities on behalf of yourself or
          others, including investment companies or private Accounts managed by
          Seligman.

     e.   Do not communicate the information inside or outside Seligman other
          than to the Director of Compliance, General Counsel or Associate
          General Counsel.

     f.   After the Director of Compliance, General Counsel or Associate General
          Counsel has reviewed the issue, you will be instructed to continue the
          prohibitions against trading and communication, or you will be allowed
          to trade and communicate the information.

2.   Important Specific Examples

     a.   If you have a telephone or face-to-face conversation with a senior
          executive of a publicly-traded company and are provided information
          about the company that you have reason to believe has not yet been
          disclosed in a widely-disseminated publication such as a press
          release, quarterly report or other public filing, you have received
          non-public information. This information is considered non-public even
          if you believe that the company executive would provide the same
          information to other analysts or portfolio managers who call the
          company. Until information has been disclosed in a manner that makes
          it available to (or capable of being accessed by) the investment
          community as a whole, it is considered non-public. If the information
          is material, as described above, you may not trade while in possession
          of this information unless you first discuss the matter and obtain
          approval from the Director of Compliance, General Counsel or Associate
          General Counsel. Although it may be lawful for an analyst to act on
          the basis of material information that the company's management has
          chosen to disclose selectively to that analyst, where the information
          is provided in a one-on-one context,


<PAGE>


          regulators are likely to question such conduct. Approval from the Law
          and Regulation Department will therefore depend on the specific
          circumstances of the information and the disclosure. Under the Supreme
          Court's important decision of Dirks v. SEC, 463 U.S. 646 (1983),
          securities analysts may be free to act on selectively disclosed
          material information if it is provided by company executives
          exclusively to achieve proper corporate purposes.

     b.   If you obtain material information in the course of an analysts'
          conference call or meeting conducted by a publicly-traded company in
          the ordinary course of its business in which representatives of
          several other firms or investors are also present (as distinguished
          from the one-on-one situation described in the preceding paragraph),
          you may act on the basis of that information without need to consult
          with the Director of Compliance, General Counsel or Associate General
          Counsel, even if the information has not yet been published by the
          news media. You should be aware, however, that if there is something
          highly unusual about the meeting or conference call that leads you to
          question whether it has been authorized by the company or is otherwise
          suspect, you should first consult with the Director of Compliance,
          General Counsel or Associate General Counsel.

     c.   If you are provided material information by a company and are
          requested to keep such information confidential, you may not trade
          while in possession of that information before first obtaining the
          approval of the Director of Compliance, General Counsel or the
          Associate General Counsel.

     As these examples illustrate, the legal requirements governing insider
trading are not always obvious. You should therefore always consult with the
Director of Compliance, General Counsel or Associate General Counsel if you have
any question at all about the appropriateness of your proposed conduct.

3.   Restricting Access To Material, Non-Public Information

     Information in your possession that you identify as material and non-public
     may not be communicated to anyone, including persons within Seligman,
     except as provided in paragraphs 1 and 2 above. In addition, care should be
     taken so that such information is secure. For example, files containing
     material, non-public information should be sealed; access to computer files
     containing material, non-public information should be restricted.

4.   Resolving Issues Concerning Insider Trading

     If, after consideration of the items set forth in paragraphs 1 and 2, doubt
     remains as to whether information is material or non-public, or if there is
     any unresolved question as to the applicability or interpretation of the
     foregoing procedures, or as to the propriety of any action, it must be
     discussed with the Director of Compliance, General Counsel and or the
     Associate General Counsel before trading or communicating the information
     to anyone.

5.   Personal Securities Trading

     All Employees shall follow with respect to personal Securities trading the
     procedures set forth in the Code of Ethics. In addition, no Employee shall
     establish a brokerage Account with a Firm other than those previously
     approved without the prior consent of the Director of Compliance and every
     Employee shall be subject to reporting requirements under Section III.5 of
     the Code of Ethics. The Director of Compliance, or his designee, shall
     monitor the personal Securities trading of all Employees.


<PAGE>


                                                                      Appendix B
                                                       Amended November 19, 1999


                       J. & W. SELIGMAN & CO. INCORPORATED
                        TRADE AUTHORIZATION REQUEST FORM

<TABLE>
<CAPTION>
<C>                                                             <S>
1.   Name of Employee/Telephone Number:                         ______________________________

2.   If different than #1, name of the person in whose
     account the trade will occur:                              ______________________________

3.   Relationship of (2) to (1):                                ______________________________

4.   Name the firm at which the account is held:                ______________________________

5.   Name of Security:                                          ______________________________

6.   Number of shares or units to be bought or
     sold or amount of bond:                                    ______________________________

7.   Approximate price per share, unit or bond:                 ______________________________

8.   Check those that are applicable:                           _______ Purchase   ______ Sale

          _____  Market Order           ______  Limit Order (Price of Limit Order: _____)

9.   Do you possess material non public information regarding
     the Security or the issuer of the Security?                         ______ Yes  ______ No

10.  To your knowledge, are there any outstanding (purchase or
     sell) orders for this Security or any Equivalent Security by
     a Seligman Client?                                                  ______ Yes  ______ No

11.  To your knowledge, is this Security or Equivalent Security
     being considered for purchase or sale for one or more
     Seligman Clients?                                                   ______ Yes  ______ No

12.  Is this Security being acquired in an initial or secondary public
     offering?                                                           ______ Yes  ______ No

13.  Is this Security being acquired in a private placement?             ______ Yes  ______ No

14.  Have you or any Related Account covered by the pre-
     authorization provisions of the Code purchased or sold
     this Security within the past 60 days?                              ______ Yes  ______ No
</TABLE>


<PAGE>


     For Investment Team Members Only:

15.  Has any Client Account managed by your team purchased or sold this Security
     or Equivalent Security within the past seven calendar days or do you expect
     any such account to purchase or sell this Security or Equivalent Security
     within seven calendar days of your purchase or sale? ______ Yes ______ No

16.  Why is this Security Transaction appropriate for you and not for one or
     more of your team's Clients?

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

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

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

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

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

                                   - - - - - -


I have read the J. & W. Seligman & Co. Incorporated Code of Ethics, as revised
on November 19, 1999, within the prior 12 months and believe that the proposed
trade(s) fully complies with the requirements of the Code of Ethics and Insider
Trading policy.

                                                     ---------------------------
                                                     Employee Signature

                                                     ---------------------------
                                                     Date Submitted


Authorized by:      ________________________

Date:               ________________________


<PAGE>


                                                                      Appendix C
                                                       Amended November 19, 1999


                     REPORT OF SECURITIES BENEFICIALLY OWNED
                             AS OF DECEMBER 31, 1999


     The following is a list of all Securities positions (except open-end
investment companies, U.S. Government Securities and money market instruments)
in which I have direct or indirect beneficial ownership, as defined in the Code
of Ethics. This includes Securities held at home, in safe deposit boxes or by an
issuer.

<TABLE>
<CAPTION>
  Description of Security        No. of Shares        Principal Amount          Location of Security

<S>                              <C>                <C>                         <C>
- --------------------------       ------------       -------------------         ------------------

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

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

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

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

- --------------------------       ------------       -------------------         ------------------
</TABLE>




_______   The list above (and any additional sheets I have attached) represents
          all my Securities positions in which I have direct or indirect
          beneficial ownership as defined in the Code of Ethics.

_______   I only have a beneficial ownership interest in open-end investment
          companies, U.S. Government Securities and money market instruments,
          and/or I do not beneficially own any Securities.


Date:  ________________________                    _____________________________
                                                   First Last, Company


<PAGE>


                                                                      Appendix D
                                                       Amended November 19, 1999

                        EMPLOYEE REPORTING QUESTIONNAIRE

<TABLE>
<CAPTION>
Employee Name:  ___________________________   Ext:  ______    Department:  ___________________
                      Please Print

Company/Affiliate:  ___________________                       Supervisor:  ___________________

1.   Securities Accounts

     Do you have any Accounts in which Securities can be purchased or sold over
     which you have control or in which you have a Beneficial Interest, as
     defined in Seligman's Code of Ethics? Yes _______ No ________

     If yes, please list all such Accounts:

                                                 Account                      Account                       Type of
               Institution                       Number                        Title                        Account
               -----------                       ------                       -------                       -------

<S>                                         <C>                      <C>                                  <C>
     ----------------------------           ----------------         --------------------------           --------------

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

     ----------------------------           ----------------         --------------------------           --------------
</TABLE>

2.   Financial Interests

     Do you have any private placements,  restricted stock warrants,  general or
     limited  partnerships,  or other  investment  interests in any organization
     (public,  private or  charitable)  not held in the accounts  listed  above?
     Please include Securities and certificates held in your custody.

                                                  Yes _______         No _______

     If yes, please describe: __________________________________________________

     ___________________________________________________________________________

3.   Outside Activities/Affiliations

     a) Do you have any activities outside Seligman or its affiliates for which
     you receive additional compensation:         Yes _______         No _______

     If yes, please describe: __________________________________________________

     ___________________________________________________________________________


     b) Do you serve in the capacity of officer, director, partner or employee
     (or in any other fiduciary capacity) for any company or organization
     (public, private or charitable) other than Seligman or its affiliates.

                                                  Yes ________        No _______


     If yes, please describe: __________________________________________________

     ___________________________________________________________________________

     I hereby certify that I have read and understand the foregoing statements
     and that each of my responses thereto are true and complete. I agree to
     immediately inform the Director of Compliance if there is any change in any
     of the above answers. I also understand that any misrepresentation or
     omissions of facts in response to this questionnaire and failure to
     immediately inform the Director of Compliance of any changes to responses
     provided herein may result in termination of my employment.

     ------------------------------------      ---------------------------------
     Employee's Signature                                    Date

     ------------------------------------
     Title


<PAGE>


                                                                      Appendix E
                                                       Amended November 19, 1999


           Annual Certification of Compliance with the Code of Ethics


     I acknowledge that I have received and read the Code of Ethics and Insider
Trading Policies and Procedures, as amended on November 19, 1999 and hereby
agree, in consideration of my continued employment by J. & W. Seligman & Co.
Incorporated, or one of its subsidiaries or affiliates, to comply with the Code
of Ethics and Insider Trading Policies and Procedures.

     I hereby certify that during the past calendar year:

1.   In accordance with the Code of Ethics, I have fully disclosed the
     Securities holdings in my Employee Account(s) and Employee Related
     Account(s) (as defined in the Code of Ethics).

2.   In accordance with the Code of Ethics, I have maintained all Employee
     Accounts and Employee Related Accounts at Ernst & Company (Investec) or
     Merrill Lynch located at 712 Fifth Avenue, New York, NY except for Accounts
     as to which the Director of Compliance has provided written permission to
     maintain elsewhere.

3.   In accordance with the Code of Ethics, except for transactions exempt from
     reporting under the Code of Ethics, I have arranged for the Director of
     Compliance to receive duplicate confirmations and statements for each
     Securities Transaction of all Employee Accounts and Employee Related
     Accounts, and I have reported all Securities Transactions in each of my
     Employee Accounts and Employee Related Accounts.

4.   I have complied with the Code of Ethics in all other respects.





                                                --------------------------------
                                                Employee Signature

                                                --------------------------------
Date:____________                               Print Name



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