SELIGMAN HIGH INCOME FUND SERIES
485APOS, 1996-10-31
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                                                                File No. 2-93076
                                                                        811-4103

                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549
- --------------------------------------------------------------------------------


                                    FORM N-1A

         REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933             |_|

   
              Pre-Effective Amendment No.                                    |_|
              Post-Effective Amendment No. 21                                |X|
    

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

   
              Amendment No. 23                                               |X|
    

- --------------------------------------------------------------------------------
                        SELIGMAN HIGH INCOME 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 appropriate box):

|_| immediately upon filing pursuant to paragraph (b) of rule 485

   
|_| on (DATE) pursuant to paragraph (b) of rule 485

|X| 60 days after filing pursuant to paragraph (a)(i) of rule 485
    

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

|_| 75 days after filing pursuant to paragraph (a)(ii) of rule 485

|_| on (date) pursuant to paragraph (a)(ii) 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.

Registrant  has  registered  an  indefinite   amount  of  securities  under  the
Securities Act of 1933 pursuant to Rule  24f-2(a)(1) and a Rule 24f-2 Notice for
Registrant's  most recent fiscal year was filed with the  Commission on February
28, 1996.
- --------------------------------------------------------------------------------
<PAGE>
                                                                File No. 2-93076
                                                                        811-4103

   
                        SELIGMAN HIGH INCOME FUND SERIES
                         FORM N-1A CROSS REFERENCE SHEET
                         POST-EFFECTIVE AMENDMENT NO. 21
                            PURSUANT TO RULE 481 (A)
                            ------------------------
ITEM IN PART A OF FORM N-1A                        LOCATION IN PROSPECTUS
- ---------------------------                        ----------------------
 1.  Cover Page                                    Cover Page
    

 2.  Synopsis                                      Summary of Series' Expenses

 3.  Condensed Financial Information               Financial Highlights

 4.  General Description of Registrant             Cover Page; Organization And
                                                   Capitalization

 5.  Management of the Fund                        Management Services

5a.  Manager's Discussion of Fund Performance      Management Services

 6.  Capital Stock and Other Securities            Cover Page; Organization and
                                                   Capitalization

 7.  Purchase of Securities Being Offered          Alternative Distribution 
                                                   System; Purchase of Shares;
                                                   Administration, Shareholder
                                                   Services and Distribution
                                                   Plan

 8.  Redemption or Repurchase                      Telephone Transaction
                                                   Redemption of Shares;
                                                   Exchange Privilege

 9.  Pending Legal Proceedings                     Not Applicable

                                                   LOCATION IN STATEMENT OF
ITEM IN PART B OF FORM N-1A                        ADDITIONAL INFORMATION*
- ---------------------------                        -----------------------
10.  Cover Page                                    Cover Page

11.  Table of Contents                             Table Of Contents

   
12.  General Information and History               General Information; Appendix
    

13.  Investment Objectives and Policies            Investment Objectives,
                                                   Policies And Risks;
                                                   Investment Limitations

14.  Management of the Registrant                  Management And Expenses

15.  Control Persons and Principal                 Trustees and Officers
                                                   General Information Holder o
                                                   Services

16.  Investment Advisory and Other Services        Management and Expenses
                                                   Distribution Services

17.  Brokerage Allocation                          Portfolio Transactions;
                                                   Administration, Shareholde
                                                   Services and Distribution
                                                   Plans
  
   
18.  Capital Stock and Other Securities            General Information
    

19.  Purchase, Redemption and Pricing              Purchase and Redemption of
                                                   Series' Shares; Valuation of
                                                   Securities being Offered

20.  Tax Status                                    Federal Income Taxes
                                                   (Prospectus)

21.  Underwriters                                  Distribution Services

22.  Calculation of Performance Data               Performance

23.  Financial Statements                          Financial Statements

*    Each of  Registrant's  two Series has a separate  Prospectus;  Registrant's
     Statement of Additional Information applies to both Series.

<PAGE>
                   SELIGMAN U.S. GOVERNMENT SECURITIES SERIES
                                   a series of
                        Seligman High Income Fund Series
 100 Park Avenue o New York, NY 10017 o New York City Telephone: (212) 850-1864
       Toll-Free Telephone: (800) 221-2450--all continental United States
      For Retirement Plan Information--Toll-Free Telephone: (800) 445-1777

   
                                                                 January 1, 1997
    

     Seligman  High Income Fund Series (the "Fund") is a  diversified,  open-end
management  investment  company that offers two  different  series which seek to
earn high  current  income by investing in debt  securities  but have  differing
investment   objectives  and  investment   policies.   Investment  advisory  and
management  services  are  provided  to  the  Fund  by J.  & W.  Seligman  & Co.
Incorporated  (the  "Manager");  the Fund's  distributor  is Seligman  Financial
Services, Inc., an affiliate of the Manager.
     The investment objective of the SELIGMAN U.S. GOVERNMENT  SECURITIES SERIES
(the  "Series") is to produce high current  income.  The Series seeks to achieve
its objective by investing primarily in debt obligations issued or guaranteed by
the United States Government,  its agencies or instrumentalities  and by writing
covered call options against such securities.  In order to reduce risks that may
be associated with changes in interest  rates,  the Series may also purchase put
options on such  securities and may engage in  transactions  involving  interest
rate  futures  contracts  and  options on such  contracts.  While  certain  debt
obligations  in the  Series  are  issued  or  guaranteed  by the  United  States
Government  or  by  United  States  Government-related  instrumentalities,  such
investments  are still subject to the risk of market value  fluctuations.  For a
description of the Series' investment objective and policies, including the risk
factors associated with an investment in the Series, see "Investment  Objective,
Policies  And Risks."  There can be no  assurance  that the  Series'  investment
objective will be achieved.

   
     The Series offers three classes of shares.  Class A shares are sold subject
to an initial  sales  load of up to 4.75% and an annual  service  fee  currently
charged  at a rate of up to .25% of the  average  daily net  asset  value of the
Class A shares.  Class A shares purchased in an amount of $1,000,000 or more are
sold  without an initial  sales load but are  subject to a  contingent  deferred
sales load ("CDSL") of 1% on redemptions  within 18 months of purchase.  Class B
shares  are sold  without an initial  sales load but are  subject to a CDSL,  if
applicable,  of 5% on  redemptions  in the first  year  after  purchase  of such
shares,  declining  to 1% in  the  sixth  year  and  0%  thereafter,  an  annual
distribution  fee of .75% and an annual service fee of up to .25% of the average
daily  net  asset  value of the  Class B  shares.  Class B shares  will  convert
automatically  to Class A shares on the last day of the month that  precedes the
eighth anniversary of their date of purchase. Class D shares are sold without an
initial  sales  load  but  are  subject  to a  CDSL  of 1%  imposed  on  certain
redemptions  within one year of purchase,  an annual  distribution  fee of up to
 .75% and an  annual  service  fee of up to .25% of the  average  daily net asset
value of the Class D shares.  Any CDSL payable upon redemption of shares will be
assessed on the lesser of the current net asset value or the  original  purchase
price of the shares redeemed.  See "Alternative  Distribution System." Shares of
the Series may be purchased through any authorized investment dealer.
    

     This Prospectus sets forth concisely the information a prospective investor
should know about the Series before  investing.  Please read it carefully before
you invest and keep it for future  reference.  Additional  information about the
Series, including a Statement of Additional Information, has been filed with the
Securities and Exchange Commission.  The Statement of Additional  Information is
available  upon request and without charge by calling or writing the Fund at the
telephone  numbers or the address set forth above.  The  Statement of Additional
Information is dated the same date as this Prospectus and is incorporated herein
by reference in its entirety. 

SHARES IN THE FUND ARE NOT DEPOSITS OR OBLIGATIONS OF, OR GUARANTEED OR ENDORSED
    BY, ANY BANK, AND SHARES ARE NOT FEDERALLY INSURED BY THE FEDERAL DEPOSIT
      INSURANCE CORPORATION, THE FEDERAL RESERVE BOARD OR ANY OTHER AGENCY.

  THESE SECURITIES HAVE NOT BEEN APPROVED OR DISAPPROVED BY THE SECURITIES AND
       EXCHANGE COMMISSION OR ANY STATE SECURITIES COMMISSION NOR HAS THE
           SECURITIES AND EXCHANGE COMMISSION OR ANY STATE SECURITIES
               COMMISSION PASSED UPON THE ACCURACY OR ADEQUACY OF
                     THIS PROSPECTUS ANY REPRESENTATION TO
                       THECONTRARY IS A CRIMINAL OFFENSE.
       

<PAGE>

                           SUMMARY OF SERIES EXPENSES
<TABLE>
<CAPTION>
   
                                                                          CLASS A             CLASS B           CLASS D
                                                                         ---------          -----------       -----------
                                                                      (Initial Sales      (Deferred Sales   (Deferred Sales
                                                                           Load                Load              Load
                                                                       Alternative)        Alternative)      Alternative)
<S>                                                                     <C>              <C>                <C>
SHAREHOLDER TRANSACTION EXPENSES
      Maximum Sales Load Imposed on Purchases (as a percentage of
         offering price)................................................   4.75%               None               None
      Sales Load on Reinvested Dividends................................    None               None               None
      Deferred Sales Load (as a percentage of original
         purchase price or redemption proceeds, whichever is lower).....   None;          5% in 1st year    1% in 1st year
                                                                          except 1%       4% in 2nd year    None thereafter
                                                                        for 18 months      3% in 3rd and
                                                                        if initial sales     4th years
                                                                      load was waived     2% in 5th year
                                                                        due to size       1% in 6th year
                                                                        of purchase       None thereafter
      Redemption Fees...................................................    None               None               None
      Exchange Fees.....................................................    None               None               None

ANNUAL SERIES OPERATING EXPENSES  FOR 1995                                CLASS A            CLASS B*           CLASS D
                                                                         ---------          -----------       -----------
(as a percentage of average net assets)
      Management Fees...................................................    .50%               .50%               .50%
      12b-1 Fees........................................................    .21%              1.00%**            1.00%**
      Other Expenses....................................................    .45%               .45%               .45%
                                                                           -----              -----              -----
      Total Series Operating Expenses...................................   1.16%              1.95%              1.95%
                                                                           =====              =====              =====
</TABLE>
     The  purpose  of this table is to assist  investors  in  understanding  the
various  costs and expenses  which  shareholders  of the Series bear directly or
indirectly.  The sales load on Class A shares is a one-time  charge  paid at the
time of purchase of shares.  Reductions  in initial sales loads are available in
certain circumstances.  The contingent deferred sales loads on Class B and Class
D shares are one-time  charges paid only if shares are redeemed within six years
or one year of  purchase,  respectively.  Class A shares  are not  subject to an
initial sales load for purchases of $1,000,000 or more; however, such shares are
subject to a  contingent  deferred  sales load, a one-time  charge,  only if the
shares are redeemed  within eighteen  months of purchase.  The "Other  Expenses"
disclosed  for Class A and Class D shares  have been  restated  to  reflect  the
expense  allocation  methodology  currently  being used by the Series.  For more
information  concerning  reductions  in  sales  loads  and  for a more  complete
description  of the  various  costs and  expenses,  see  "Purchase  Of  Shares",
"Redemption  Of  Shares"  and   "Management   Services"   herein.   The  Series'
Administration,  Shareholder Services and Distribution Plan to which the caption
"12b-1 Fees" relates, is discussed under  "Administration,  Shareholder Services
and Distribution Plan" herein.

<TABLE>
<CAPTION>
EXAMPLE:                                                        1 YEAR        3 YEARS       5 YEARS      10 YEARS
                                                                ------        -------       -------      --------
<S>                                                 <C>          <C>            <C>           <C>            <C> 
You would pay the  following  expenses on 
a $1,000  investment,  assuming (1) 5% annual 
return and (2) redemption at
the end of each time period.........................Class A      $59            $83           $108           $182
                                                    Class B+     $70            $91           $125           $207
                                                    Class D      $30++          $61           $105           $227

The  example  should  not be  considered  a  representation  of past  or  future
expenses.  Actual  expenses  may be greater or less than those  shown and the 5%
annual return used in this example is a hypothetical rate.
  *Expenses for Class B shares are estimated because no shares of that Class 
   were outstanding in the year ended December 31, 1995.
 **Includes an annual  distribution  fee of up to .75% and an annual service fee
   of up to  .25%.  Pursuant  to  the  Rules  of  the  National  Association  of
   Securities  Dealers,  Inc.  the  aggregate  deferred  sales  loads and annual
   distribution  fees on Class B and Class D shares of the Series may not exceed
   6.25%  of total  gross  sales,  subject  to  certain  exclusions.  The  6.25%
   limitation is imposed on the Series rather than on a per  shareholder  basis.
   Therefore,  a long-term  Class B or Class D shareholder of the Series may pay
   more in total sales loads  (including  distribution  fees) than the  economic
   equivalent of 6.25% of such shareholder's investment in such shares.
  +Assuming (1) 5% annual return and (2) no redemption at the end of the period,
   the expenses on a $1,000  investment would be $20 for 1 year, 61 for  3 years
   and $105 for 5 years.
 ++Assuming (1) 5% annual  return and (2) no  redemption at the end of one year,
   the expenses on a $1,000 investment would be $20.
</TABLE>
    

                                       2
<PAGE>

                              FINANCIAL HIGHLIGHTS

   
     The financial highlights for the Series' Class A and Class D shares for the
periods  presented  below have been  audited  by ,  independent  auditors.  This
information,  which is derived from the financial and accounting  records of the
Series should be read in  conjunction  with the financial  statements  and notes
contained in the Fund's 1995 Annual  Report and June 30, 1996  Mid-Year  Report,
which are  incorporated  by  reference  in the Fund's  Statement  of  Additional
Information, copies of which may be obtained free of charge from the Fund at the
telephone  numbers or  address  provided  on the cover page of this  Prospectus.
Financial  Highlights are not presented for the Class B shares because no shares
of that Class were outstanding during the periods set forth below.
     The per share operating  performance data is designed to allow investors to
trace the operating  performance,  on a per share basis, from a Class' beginning
net asset value to its ending net asset value so that they may  understand  what
effect the  individual  items  have on their  investment,  assuming  it was held
throughout  the  period.  Generally,  the  per  share  amounts  are  derived  by
converting the actual dollar amounts incurred for each item, as disclosed in the
financial  statements,  to their  equivalent per share amount.  The total return
based on net asset value  measures  the Class'  performance  assuming  investors
purchased  shares of the Class at the net asset value as of the beginning of the
period,  invested  dividends  and capital gains paid at net asset value and then
sold  their  shares  at the net  asset  value  per  share on the last day of the
period.  The total return  computations do not reflect any sales loads investors
may incur in purchasing  shares of any Class.  Total returns for periods of less
than one year are not annualized.

<TABLE>
<CAPTION>
                                                                   CLASS A                                                         
                               -------------------------------------------------------------------------------------------------- 
                               SIX MONTHS                                                                                         
                                  ENDED                     YEAR ENDED DECEMBER 31,                                                
                                 6/30/96   1995     1994    1993     1992     1991     1990      1989     1988     1987    1986    
                               ----------- ----     ----    ----     ----     ----     ----      ----     ----     ----    ----    
<S>                              <C>      <C>      <C>     <C>      <C>      <C>      <C>       <C>      <C>      <C>       <C>    
PER SHARE OPERATING 
  PERFORMANCE:
Net asset value, 
  beginning of period            $ 7.15   $ 6.47   $ 7.18  $ 7.19   $ 7.30   $ 6.89   $ 7.04    $ 7.06   $ 7.12   $ 8.15    $ 8.12 
                                 ------   ------   ------  ------   ------   ------   ------    ------   ------   ------    ------ 
Net investment income**........     .20      .46      .44     .53      .51      .51      .59       .65      .60      .59       .65 
Net realized and unrealized
  investment gain (loss).......    (.48)     .68     (.71)   (.01)    (.11)     .41     (.15)     (.02)    (.06)    (.84)      .56 
                                 ------   ------   ------  ------   ------   ------   ------    ------   ------   ------    ------ 
Increase (decrease) from 
  investment operations........    (.28)    1.14     (.27)    .52      .40      .92      .44       .63      .54     (.25)     1.21 
Dividends paid or declared.        (.20)    (.46)    (.44)   (.53)    (.51)    (.51)    (.59)     (.65)    (.60)    (.59)     (.65)
Distributions from net 
  gain realized                      --       --       --      --       --       --       --        --       --     (.13)     (.53)
Return of capital..............      --       --       --      --       --       --       --        --       --     (.06)       -- 
                                 ------   ------   ------  ------   ------   ------   ------    ------   ------   ------    ------ 
Net increase (decrease) 
  in net asset value...........    (.48)     .68     (.71)   (.01)    (.11)     .41     (.15)     (.02)    (.06)   (1.03)      .03 
                                 ------   ------   ------  ------   ------   ------   ------    ------   ------   ------    ------ 
Net asset value, 
  end of period                   $6.67    $7.15   $ 6.47  $ 7.18   $ 7.19   $ 7.30   $ 6.89    $ 7.04   $ 7.06   $ 7.12    $ 8.15 
                                 ======   ======   ======  ======   ======   ======   ======    ======   ======   ======    ====== 
TOTAL RETURN BASED ON
  NET ASSET VALUE .............   (3.86)%  18.15%   (3.88)%  7.46%    5.78%   14.05%    6.37%     9.25%    7.84%   (2.84)%   16.08%
RATIOS/SUPPLEMENTAL DATA:
Expenses to average 
  net assets**                     1.20%+   1.14%    1.10%   1.11%    1.05%    1.10%    1.06%     1.09%    1.09%    1.13%     1.10%
Net investment income 
  to average net assets**......    6.03%+   6.71%    6.49%   7.22%    7.17%    7.39%    8.66%     9.16%    8.33%    7.82%     7.19%
Portfolio turnover.............  109.72%  213.06%  445.18% 170.35%  126.17%   95.46%  306.05%   226.25%  263.15%  282.99%   245.86%
Net assets, end of 
  period (000's omitted).......  $48,258  $55,061  $54,714 $69,805  $55,732  $64,440  $71,735   $83,850 $106,720 $123,556  $154,919

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

</TABLE>

                                                CLASS D
                               --------------------------------------
                               IX MONTHS   YEAR ENDED        9/21/93*
                                ENDED      DECEMBER 31,         TO
                               6/30/96     1995     1994     12/31/93
                               ---------   ----     ----     --------
PER SHARE OPERATING 
  PERFORMANCE:
Net asset value, 
  beginning of period            $ 7.16   $ 6.48   $  7.20   $  7.33
                                 ------   ------   -------   -------
Net investment income**........     .18      .40       .37       .09
Net realized and unrealized
  investment gain (loss).......    (.48)     .68      (.72)     (.13)
                                 ------   ------   -------   -------
Increase (decrease) from 
  investment operations........    (.30)    1.08      (.35)     (.04)
Dividends paid or declared.        (.18)    (.40)     (.37)     (.09)
Distributions from net 
  gain realized                      --       --        --        --
Return of capital..............      --       --        --        --
                                 ------   ------   -------   -------
Net increase (decrease) 
  in net asset value...........    (.48)     .68      (.72)     (.13)
                                 ------   ------   -------   -------
Net asset value, 
  end of period                  $ 6.68   $ 7.16   $  6.48   $  7.20
                                 ======   ======   =======   =======
TOTAL RETURN BASED ON
  NET ASSET VALUE .............   (4.23)%  17.10%    (5.05)%    (.65)%
RATIOS/SUPPLEMENTAL DATA:
Expenses to average 
  net assets**                     1.98%+   2.01%     2.22%     2.09%+
Net investment income 
  to average net assets**......    5.25%+   5.84%     5.40%     5.28%+
Portfolio turnover.............  109.72%  213.06%   445.18%   170.35%++
Net assets, end of 
  period (000's omitted).......   $8,151   $8,181    $6,062    $2,317
    
- ------------
 *Commencement of offering of Class D shares.
**Had the Manager,  at its  discretion,  not waived portions of its fees and not
  reimbursed  certain  expenses,  the net investment income per share would have
  been $.65 and $.58 for the Series for the years  ended  December  31, 1986 and
  1987, respectively.  For the same years, the ratios of expenses to average net
  assets for the Series would have been 1.14%, and 1.15%, respectively,  and the
  ratios of net  investment  income to average  net assets for the Series  would
  have been 7.16% and 7.79%, respectively.
 +Annualized.
++For the year ended December 31, 1993.
                                       3
<PAGE>

ALTERNATIVE DISTRIBUTION SYSTEM

   
     The Series  offers  three  classes  of  shares.  Class A shares are sold to
investors who have concluded that they would prefer to pay an initial sales load
and have  the  benefit  of lower  continuing  fees.  Class B shares  are sold to
investors choosing to pay no initial sales load, a higher distribution fee and a
CDSL with  respect to  redemptions  within six years of purchase  and who desire
shares to convert  automatically  to Class A shares after eight  years.  Class D
shares are sold to  investors  choosing to pay no initial  sales load,  a higher
distribution fee and, with respect to redemptions within one year of purchase, a
CDSL. The Alternative  Distribution System allows investors to choose the method
of  purchasing  shares  that is most  beneficial  in light of the  amount of the
purchase,  the  length  of time the  shares  are  expected  to be held and other
relevant   circumstances.   Investors  should  determine   whether  under  their
particular  circumstances it is more advantageous to incur an initial sales load
and be subject to lower ongoing fees, as discussed  below, or to have the entire
initial  purchase price  invested in the Series with the  investment  thereafter
being  subject to higher  ongoing  fees and either a CDSL for a six-year  period
with  automatic  conversion  to Class A shares after eight years or a CDSL for a
one-year period with no automatic conversion to Class A shares.

     Investors who expect to maintain their investment for an extended period of
time might choose to purchase Class A shares  because over time the  accumulated
continuing  distribution  fees of Class B and  Class D  shares  may  exceed  the
initial  sales  load  and  lower  distribution  fee  of  Class  A  shares.  This
consideration  must be weighed  against the fact that the amount invested in the
Series will be reduced by the initial  sales load on Class A shares  deducted at
the time of purchase.  Furthermore,  the higher distribution fees on Class B and
Class D shares  will be offset to the  extent  any  return  is  realized  on the
additional  funds initially  invested  therein that would have been equal to the
amount of the initial sales load on Class A shares.

     Investors who qualify for reduced  initial sales loads,  as described under
"Purchase Of Shares" below, might also choose to purchase Class A shares because
the initial sales load deducted at the time of purchase would be less.  However,
investors  should  consider the effect of the 1% CDSL imposed on shares on which
the initial sales load was waived because the amount of Class A shares purchased
reached $1,000,000.  In addition,  Class B shares will be converted into Class A
shares after a period of  approximately  eight years,  and thereafter  investors
will be subject to lower ongoing fees. Shares purchased through  reinvestment of
dividends and distributions on Class B shares also will convert automatically to
Class A shares along with the underlying shares on which they were earned.

     Alternatively,  some  investors  might  choose  to have all of their  funds
invested initially in Class B or Class D shares, although remaining subject to a
higher  continuing  distribution  fee and, for a six-year or one-year  period, a
CDSL as  described  below.  For  example,  an investor  who does not qualify for
reduced  sales  loads would have to hold Class A shares for more than 6.33 years
for the Class B or Class D  distribution  fee to exceed the  initial  sales load
plus the  distribution  fee on Class A shares.  This  example does not take into
account the time value of money, which further reduces the impact of the Class B
and Class D shares' 1% distribution  fee, other expenses  charged to each class,
fluctuations  in net asset  value or the effect of the return on the  investment
over this period of time.

     Investors  should bear in mind that the total  asset  based  sales  charges
(i.e., the higher  continuing  distribution fee plus the CDSL) on Class B shares
that are redeemed  may exceed the total asset based sales  charges that would be
payable  on the same  amount of Class A or Class D shares,  particularly  if the
Class B shares are redeemed shortly after purchase or if the investor  qualifies
for a reduced sales load on the Class A shares.

     Investors  should  understand  that the purpose and function of the initial
sales load (and deferred sales load,  when  applicable)  with respect to Class A
shares is the same as those of the deferred sales loads and higher  distribution
fees with  respect  to Class B and  Class D shares  in that the sales  loads and
distribution  fees  applicable  to each class  provide for the  financing of the
distribution of the shares of the Series.

                                       4
<PAGE>

     Class B and Class D shares  are  subject to the same  ongoing  distribution
fees but Class D shares are subject to a CDSL for a shorter  period of time (one
year as opposed  to six years)  than  Class B shares.  However,  unlike  Class D
shares,  Class B shares  automatically  convert  to Class A  shares,  which  are
subject to lower ongoing distribution fees.

     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, 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 Investment  Company Act
of 1940,  as amended  (the "1940  Act"),  or  Massachusetts  law. The net income
attributable  to each  class and  dividends  payable on the shares of each class
will be reduced by the amount of distribution  and other expenses of each class.
Class B and Class D shares bear higher  distribution  fees, which will cause the
Class B and Class D shares to pay lower  dividends than the Class A shares.  The
three classes also have separate exchange privileges.

     The  Trustees of the Fund  believe  that no conflict of interest  currently
exists  between  the Class A,  Class B and Class D shares of the  Series.  On an
ongoing basis, the Trustees, in the exercise of their fiduciary duties under the
1940 Act and  Massachusetts  law,  will  seek to  ensure  that no such  conflict
arises. For this purpose, the Trustees will monitor the Series for the existence
of any  material  conflict  among the  classes  and will take such  action as is
reasonably necessary to eliminate any such conflicts that may develop.

     DIFFERENCES BETWEEN CLASSES. The primary differences between Class A, Class
B and Class D shares are their sales load structures and ongoing expenses as set
forth below. The primary differences between Class B and Class D shares are that
Class D shares are  subject to a shorter  CDSL  period and a lower CDSL rate but
Class B  shares  automatically  convert  to Class A shares  after  eight  years,
resulting in a reduction  in ongoing  fees.  Investors in Class B shares  should
take into account  whether  they intend to redeem  their shares  within the CDSL
period and, if not,  whether they intend to remain invested until the end of the
conversion  period and thereby take  advantage of the  reduction in ongoing fees
resulting from the conversion to Class A shares.  Other investors,  however, may
elect to purchase Class D shares if they determine  that it is  advantageous  to
have all their assets invested initially and they are uncertain as to the length
of time they intend to hold their assets in the Series or another mutual fund in
the Seligman Group for which the exchange privilege is available. Although Class
D shareholders  are subject to a shorter CDSL period at a lower rate, they forgo
the Class B automatic  conversion  feature,  making their investment  subject to
higher  distribution  fees for an  indefinite  period  of time.  Each  class has
advantages  and  disadvantages  for different  investors,  and investors  should
choose the class that best suits their circumstances and their objectives.

                               ANNUAL 12B-1 FEES
         INITIAL               (AS A % OF AVERAGE
         SALES LOAD            DAILY NET ASSETS)       OTHER INFORMATION
         ----------            -------------------     ------------------------
CLASS A  Maximum initial       Service fee of          Initial sales load
         sales load of 4.75%   .25%.                   waived or reduced
         of the public                                 for certain
         offering price.                               purchases.
                                                       CDSL of 1% on redemptions
                                                       within  18 months of
                                                       purchase on shares on
                                                       which initial sales
                                                       load was waived due to
                                                       size of purchase.

CLASS B  None                  Service fee of          CDSL of:
                               .25%; Distribution      5% in 1st year
                               fee of .75% until       4% in 2nd year
                               conversion.*            3% in 3rd and
                               4th  years              2% in 5th  year  
                                                       1% in 6th year 
                                                       0% after 6th year.

CLASS D  None                  Service fee of          CDSL of 1% on
                               .25%; Distribution      redemptions
                               fee of up to .75%.      within one year of
                                                       purchase.

*Conversion occurs at the end of the month which precedes the 8th anniversary of
 the purchase  date.  If Class B shares of the Series are  exchanged for Class B
 shares of another Seligman Mutual Fund, the conversion period applicable to the
 Class B shares  acquired in the exchange will apply,  and the holding period of
 the  shares  exchanged  will be tacked  onto the  holding  period of the shares
 acquired.
    
                                       5
<PAGE>

INVESTMENT OBJECTIVE, POLICIES AND RISKS

     The Fund is a diversified open-end management  investment company organized
under the laws of the  Commonwealth of  Massachusetts  by a Declaration of Trust
dated July 27, 1984. The Fund offers one other separate  investment  series: the
Seligman   High-Yield  Bond  Series.  The  High-Yield  Bond  Series'  investment
objective  and  policies  and other  important  information  with respect to its
operations are set forth in a separate Prospectus.

     The objective of the Series is to produce high current  income.  The Series
seeks to achieve its  objective  by  investing  at least 80% of the value of its
total assets in direct obligations of the U.S. Treasury, such as Treasury Bills,
Treasury Notes and Treasury Bonds,  and in debt securities  issued or guaranteed
by the U.S. Government, its agencies or instrumentalities and backed by the full
faith and credit of the U.S.  Government which have maturities  greater than one
year at the date of  purchase  by the  Series,  except for  temporary  defensive
purposes.  This investment policy is a fundamental policy and may not be changed
by the  Trustees  of the Fund  without  the vote of a  majority  of the  Series'
outstanding voting securities (as defined below). There can be no assurance that
the Series' investment objective will be obtained.

     The Series may invest up to 20% of the value of its total  assets in direct
obligations of the U.S.  Treasury and in securities  issued or guaranteed by the
United  States  Government,   its  agencies  or  instrumentalities   which  have
maturities  of less  than  one  year  at the  date of  purchase  by the  Series.
Obligations  issued by U.S.  Government  agencies include  obligations issued by
such entities as Federal Land Banks,  Federal Home Loan Banks and the Government
National  Mortgage  Association   ("GNMA").   "GNMA  Certificates"  or  "GNMAs,"
represent  interests in pools of  residential  mortgages.  The timely payment of
principal  and interest is  guaranteed  by GNMA and backed by the full faith and
credit of the U.S. Government.  GNMAs differ from other forms of debt securities
which  normally  provide for periodic  payment of interest in fixed amounts with
principal payments at maturity or specified call dates. Instead, GNMAs provide a
"pass  through"  of monthly  payments  of  interest  and  principal  made by the
borrowers on their residential mortgage loans, net of certain expenses. A pool's
stated  maturity may be shortened by  prepayments of principal on the underlying
mortgage  obligations.  Factors affecting mortgage  prepayments  include,  among
other  things,  the  level  of  interest  rates,  general  economic  and  social
conditions  and the  location  and age of the  mortgage.  Such  prepayments  may
shorten the effective  maturity of GNMAs.  High interest rate mortgages are more
likely to be prepaid  than lower rate  mortgages;  consequently,  the  effective
maturities  of GNMAs with pass  through  payments of higher rate  mortgages  are
likely to be shorter than those of  obligations  with pass  through  payments of
lower rate mortgages.

     LENDING OF PORTFOLIO  SECURITIES.  The Series may lend portfolio securities
to brokers or dealers,  banks, or other  institutional  borrowers of securities.
The borrower must maintain with the Series cash or equivalent collateral such as
Treasury  Bills,  equal to at least 100% of the market  value of the  securities
loaned.  During the time portfolio securities are on loan, the borrower pays the
Series any income  accruing on the loaned  securities  and the Series may invest
the cash  collateral  and earn  additional  income or may receive an agreed upon
amount of interest income from the borrower. The lending of portfolio securities
may involve  certain  risks such as: 1) an  increase in the market  value of the
borrowed securities without a corresponding  increase in the value of the posted
collateral might result in an imbalance in value between the borrowed securities
and the  collateral;  2) in the event the borrower sought  protection  under the
Federal bankruptcy laws,  repayment of the borrowed securities to the Fund might
be delayed;  and 3) the borrower might refuse to repay the borrowed  securities.
The Series may lend  portfolio  securities  to the extent that the Manager deems
appropriate in seeking to achieve the Series' investment objective and with only
a prudent degree of risk.

     REPURCHASE AGREEMENTS. The Series may enter into repurchase agreements with
commercial banks and with  broker/dealers  to invest cash for the short-term.  A
repurchase  agreement  is an agreement  under which the Series  acquires a money

                                       6
<PAGE>

market instrument, generally a U.S. Government obligation qualified for purchase
by the Series,  subject to resale at an agreed upon price and date.  Such resale
price reflects an agreed upon interest rate effective for the period of time the
instrument  is held by the Series and is unrelated  to the interest  rate on the
instrument.  Repurchase  agreements  could involve certain risks in the event of
bankruptcy  or other  default  by the  seller,  including  possible  delays  and
expenses in  liquidating  the securities  underlying  the agreement,  decline in
value of the underlying  securities and loss of interest.  Repurchase agreements
usually are for short  periods,  such as one week or less, but may be for longer
periods.  Although the Series may enter into repurchase  agreements with respect
to  any  money  market  instruments  qualified  for  purchase,  such  agreements
generally involve U.S.  Government  securities and will only involve  securities
issued or guaranteed by the U.S. Government.  As a matter of fundamental policy,
the Series  will not enter into  repurchase  agreements  of more than one week's
duration  if more  than  10% of its  total  assets  would  be  invested  in such
agreements and in restricted and other illiquid securities.

     WHEN-ISSUED SECURITIES. The Series may purchase securities on a when-issued
basis,  in which case  delivery and payment  normally  take place within 45 days
after the date of the  commitment to purchase.  The payment  obligation  and the
interest rate that will be received on the securities are each fixed at the time
the buyer enters into the  commitment.  Although the Series will only purchase a
security on a  when-issued  basis with the  intention of actually  acquiring the
securities,  the Series may sell these securities before the purchase settlement
date if it is deemed advisable.

     Securities  held by the Series and  securities  purchased on a  when-issued
basis are subject to changes in market value based upon  investors'  perceptions
of the creditworthiness of the issuer and upon changes, real or anticipated,  in
the level of interest rates. If the Series remains  substantially fully invested
at the same time that it has purchased  securities on a when-issued  basis,  the
market value of the Series' assets may fluctuate  more than  otherwise  would be
the case.  Purchasing a 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 so purchased.

     An account  for the Series  consisting  of cash or liquid  high-grade  debt
securities  equal  to  the  amount  of  the  when-issued   commitments  will  be
established  with the  Series'  Custodian,  and  marked  to market  daily,  with
additional cash or liquid high-grade debt securities added when necessary.  When
the time  comes to pay for  when-issued  securities,  the  Series  will meet its
respective obligations from then available cash flow, sale of securities held in
the separate  account,  sale of other  securities  or,  although  they would not
normally expect to do so, from the sale of the when-issued securities themselves
(which may have a value greater or less than the Series'  payment  obligations).
Sale of securities to meet such obligations  carries with it a greater potential
for the realization of capital gain or loss.

     GENERAL.   Except  as  noted  above  or  in  the  Statement  of  Additional
Information,  the  foregoing  investment  policies are not  fundamental  and the
Trustees of the Fund may change such policies  without the vote of a majority of
the  outstanding  voting  securities of the Series.  As a matter of policy,  the
Trustees  will not change the Series'  investment  objective of  producing  high
current income without such a vote.  Under the 1940 Act a "vote of a majority of
the outstanding  voting  securities" of the Series means the affirmative vote of
the lesser of (1) more than 50% of the  outstanding  shares of the Series or (2)
67% or more of the shares of the Series  present at a  shareholders'  meeting if
more than 50% of the  outstanding  shares of the Series are  represented  at the
meeting in person or by proxy.


MANAGEMENT SERVICES
     The Trustees  provide broad  supervision over the affairs of the Series and
the Fund as a whole. Pursuant to a Management Agreement approved by the Trustees

                                       7
<PAGE>

and the  shareholders of the Series,  the Manager manages the investments of the
Series and administers the business and other affairs of the Series. The address
of the Manager is 100 Park Avenue, New York, NY 10017.
   
     The Manager also serves as manager of sixteen  other  investment  companies
which,  together with the Fund,  comprise the "Seligman  Group." These companies
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  Henderson
Global Fund  Series,  Inc.,  Seligman  Income  Fund,  Inc.,  Seligman New Jersey
Tax-Exempt Fund, Inc., Seligman  Pennsylvania  Tax-Exempt Fund Series,  Seligman
Portfolios,  Inc.,  Seligman  Quality  Municipal  Fund,  Inc.,  Seligman  Select
Municipal Fund, Inc., Seligman Tax-Exempt Fund Series, Inc., Seligman Tax-Exempt
Series  Trust  and  Tri-Continental  Corporation.  The  aggregate  assets of the
Seligman  Group were  approximately  $13.4  billion at September  30, 1996.  The
Manager also provides investment management or advice to institutional  accounts
having an aggregate value at September 30, 1996 of approximately $4.0 billion.
    

     Mr. William C. Morris is Chairman and President of the Manager and Chairman
of the Board and Chief Executive Officer of the Fund. Mr. Morris owns a majority
of the outstanding voting securities of the Manager.

     The  Manager  provides  senior   management  for  Seligman  Data  Corp.,  a
wholly-owned  subsidiary of certain investment  companies in the Seligman Group,
which  performs,  at  cost,  certain  recordkeeping  functions  for the  Series,
maintains the records of  shareholder  accounts and furnishes  dividend  paying,
redemption and related services.

   
     The Manager is entitled to receive a management fee,  calculated  daily and
payable monthly,  equal to .50% of the daily average net assets of the Series on
an annual basis.  The Fund pays all of its expenses  other than those assumed by
the Manager. The Fund's expenses are allocated among the series of the Fund in a
manner  determined by the Trustees to be fair and  equitable.  Total expenses of
the  Series'  Class A and Class D shares for the year ended  December  31,  1995
amounted to 1.14% and 2.01%,  respectively,  of the average  daily net assets of
each class. No Class B shares of the Series were outstanding during this period.

     PORTFOLIO  MANAGER.  Mr. Leonard J. Lovito,  Vice President of the Manager,
has been Vice President and Portfolio  Manager of the Series since January 1994.
Mr. Lovito also serves as Vice President and Portfolio  Manager of Seligman Cash
Management  Fund, Inc. and Vice President of Seligman  Portfolios,  Inc. ("SPI")
and Portfolio  Manager of SPI's Seligman Cash Management  Portfolio and Seligman
Fixed Income Securities  Port-folio.  Mr. Lovito joined the Manager in 1984 as a
fixed  income  trader  and has more than 11 years of fixed  income  trading  and
portfolio management experience.
    

     The Manager's discussion of the Series' performance as well as a line graph
illustrating  comparative  performance  information  between  the Series and the
Lehman Brothers  Government/Mortgage  Index, the Lipper General U.S.  Government
Funds  Index and the Lehman  Brothers  Government  Bond Index is included in the
Fund's 1995 Annual Report to Shareholders.  Copies of the 1995 Annual Report may
be obtained,  without  charge,  by calling or writing the Fund at the  telephone
numbers or address listed on the cover page of this Prospectus.

     PORTFOLIO TRANSACTIONS. Fixed-income securities are generally traded on the
over-the-counter  market on a "net" basis without a stated  commission,  through
dealers acting for their own account and not as brokers.  The Series will engage
in transactions with these dealers or deal directly with the issuer. Prices paid
to dealers will generally  include a "spread," i.e., the difference  between the
prices at which a dealer is willing to purchase or to sell the  security at that
time.  The  Management  Agreement  recognizes  that in the  purchase and sale of
portfolio  securities,  the  Manager  will  seek the most  favorable  price  and
execution  and  consistent  with  that  policy,  may give  consideration  to the
research,  statistical and other services furnished by dealers to the Manger for
its use in connection with its services to the Fund as well as to other clients.

                                       8
<PAGE>

     Consistent  with  the  Rules  of the  National  Association  of  Securities
Dealers,  Inc.  and subject to seeking the most  favorable  price and  execution
available and such other policies as the Trustees of the Fund may determine, the
Manager  may  consider  sales of shares of the Series and,  if  permitted  under
applicable  laws,  may consider sales of shares of the other mutual funds in the
Seligman  Group as a factor in the  selection  of  brokers or dealers to execute
portfolio transactions for the Series.

     PORTFOLIO  TURNOVER.  A change in securities held by the Series is known as
"portfolio  turnover"  which may  result in the  payment by the Series of dealer
spreads or underwriting  commissions and other transactions costs on the sale of
securities as well as on the  reinvestment of the proceeds in other  securities.
Although  it is the  policy of the  Series to hold  securities  for  investment,
changes  will be made from time to time when the Manager  believes  such changes
will  strengthen the Series'  portfolio.  The portfolio  turnover rate will vary
from year to year as well as within a year and may  exceed  100% and has done so
in prior years.

PURCHASE OF SHARES

     Seligman Financial  Services,  Inc. ("SFSI"),  an affiliate of the Manager,
acts as general  distributor  of the  Series'  shares.  Its  address is 100 Park
Avenue, New York, NY 10017.

   
     The Fund  issues  three  classes  of  shares:  Class A  shares  are sold to
investors  choosing the initial sales load alternative;  Class B shares are sold
to investors  choosing to pay no initial sales load, a higher  distribution  fee
and a CDSL with  respect to  redemptions  within six years of  purchase  and who
desire shares to convert  automatically to Class A shares after eight years; and
Class D shares are sold to  investors  choosing no initial  sales load, a higher
distribution  fee and a CDSL on  redemptions  within one year of  purchase.  See
"Alternative Distribution System" above.
    

     Shares of the Series may be  purchased  through any  authorized  investment
dealer.  All  orders  will be  executed  at the net asset  value per share  next
computed  after  receipt  of the  purchase  order  plus,  in the case of Class A
shares, a sales load which, except for shares purchased under one of the reduced
sales  load  plans,  will  vary  with the size of the  purchase  as shown in the
schedule under "Class A Shares -- Initial Sales Load" below.

     THE  MINIMUM  AMOUNT  FOR  INITIAL  INVESTMENT  IN THE  SERIES  IS  $1,000;
SUBSEQUENT  INVESTMENTS  MUST  BE IN THE  MINIMUM  AMOUNT  OF $100  (EXCEPT  FOR
INVESTMENT OF DIVIDENDS AND CAPITAL GAIN  DISTRIBUTIONS).  THE FUND RESERVES THE
RIGHT TO RETURN  INVESTMENTS  WHICH DO NOT MEET THESE  MINIMUMS.  EXCEPTIONS  TO
THESE MINIMUMS ARE AVAILABLE FOR ACCOUNTS BEING  ESTABLISHED  CONCURRENTLY  WITH
THE INVEST-A-CHECK(R) SERVICE OR THE SELIGMAN TIME HORIZON MATRIXSM.

   
     No  purchase  order  may be  placed  for  Class B shares  for an  amount of
$250,000 or more.

     Orders  received by an  authorized  dealer before the close of the New York
Stock Exchange ("NYSE") (normally,  4:00 p.m. Eastern time) and accepted by SFSI
before the close of business  (5:00 p.m.  Eastern  time) on the same day will be
executed at the Series' net asset value  determined  as of the close of the NYSE
on that day plus,  in the case of Class A shares,  any  applicable  sales  load.
Orders  accepted  by dealers  after the close of the NYSE,  or  received by SFSI
after the close of business,  will be executed at the Series' net asset value as
next determined plus, in the case of Class A shares,  any applicable sales load.
The  authorized   dealer  through  which  a  shareholder   purchases  shares  is
responsible for forwarding the order to SFSI promptly.

     Payment  for  dealer  purchases  may be made by check  or by wire.  To wire
payment,  dealer  orders  must  first be placed  through  SFSI's  order desk and
assigned a purchase  confirmation  number.  Funds in payment of the purchase may
then be wired to Mellon Bank, N.A., ABA #043000261, A/C Seligman U.S. Government
Securities  Series (A, B or D), A/C  #107-1011.  WIRE TRANSFERS MUST INCLUDE THE
PURCHASE CONFIRMATION NUMBER AND CLIENT ACCOUNT REGISTRATION AND ACCOUNT NUMBER.
Persons other than dealers who wish to wire payment should contact Seligman Data
Corp. for specific wire instructions. Although the Fund makes no charge for this
service, the transmitting bank may impose a wire service fee.
    

                                       9
<PAGE>

   
     Current  shareholders may purchase  additional shares of the Series through
any  authorized  dealer or by sending a check payable to the "Seligman  Group of
Funds" directly to P.O. BOX 3936, NEW YORK, NY 10008-3936. Checks for investment
must  be in  U.S.  dollars  drawn  on a  domestic  bank.  The  check  should  be
accompanied by an investment slip (provided on the bottom of shareholder account
statements  or with  periodic  reports)  and  include  the  shareholder's  name,
address,  account  number,  name of Series and class of shares (A, B or D). If a
shareholder does not provide the required information,  Seligman Data Corp. will
seek  further  clarification  and may be  forced  to  return  the  check  to the
shareholder. Orders sent directly to Seligman Data Corp. will be executed at the
Series' net asset value next determined after the order is accepted plus, in the
case of Class A shares, any applicable sales load.
    

     Seligman Data Corp. will charge a $10.00 service fee for checks returned to
it as uncollectable. This charge may be deducted from the shareholder's account.
For the protection of the Fund and its shareholders, no redemption proceeds will
be remitted to a shareholder  with respect to shares  purchased by check (unless
certified) until Seligman Data Corp. receives notice that the check has cleared,
which may be up to 15 days from the  credit of the  shares to the  shareholder's
account.

     VALUATION.  The net asset value of the Series'  shares is  determined  each
day,  Monday through  Friday,  as of the close of trading on the NYSE (normally,
4:00  p.m.  Eastern  time) on each day that the NYSE is open for  business.  Net
asset value is calculated  separately  for each class.  Securities are valued at
market  value  or,  in the  absence  thereof,  at fair  value as  determined  in
accordance with procedures approved by the Fund's Trustees.  Short-term holdings
maturing  in 60 days or less are  valued  at  amortized  cost if their  original
maturity was 60 days or less and securities  purchased with maturities in excess
of 60 days  which  currently  have  maturities  of 60 days or less are valued by
amortizing their fair market value on the 61st day prior to maturity.

   
     Although  the  legal  rights  of Class A,  Class B and  Class D shares  are
substantially  identical, the different expenses borne by each class will result
in different net asset values and dividends.  The net asset value of Class B and
Class D shares  will  generally  be lower  than the net  asset  value of Class A
shares as a result of the higher  distribution fees charged to Class B and Class
D shares.  In addition,  net asset value per share of the three  classes will be
affected to the extent any other expenses differ among classes.

     CLASS A  SHARES--INITIAL  SALES  LOAD.  Class A shares  are  subject  to an
initial  sales load which  varies with the size of the  purchase as shown in the
following schedule, and an annual service fee of up to .25% of the average daily
net asset value of Class A shares. See "Administration, Shareholder Services and
Distribution Plan" below. There is no initial sales load on purchases of Class A
shares of $1,000,000 or more;  however,  such shares are subject to a CDSL of 1%
if redeemed within 18 months of purchase.

- --------------------------------------------------------------------------------
                       CLASS A SHARES--SALES LOAD SCHEDULE
                                                      
                                SALES LOAD AS A       REGULAR
                                  PERCENTAGE OF       DEALER
                               ------------------     DISCOUNT
                                       NET AMOUNT      AS A
                                        INVESTED        %OF
                              OFFERING (NET ASSET    OFFERING
  AMOUNT OF PURCHASE            PRICE    VALUE)        PRICE
  ------------------------      -------  ---------     -------
  Less than  -$     50,000      4.75%     4.99%       4.25%
  $     50,000-     99,999      4.00      4.17        3.50
       100,000-    249,999      3.50      3.63        3.00
       250,000-    499,999      2.50      2.56        2.25
       500,000-    999,999      2.00      2.04        1.75
     1,000,000-   or more*         0         0           0
 *Shares  acquired at net asset value  pursuant to  the above  schedule will be 
  subject to a CDSL of 1% if redeemed  within 18 months of purchase. See 
  "Purchase of Shares--Contingent Deferred Sales Load."
- --------------------------------------------------------------------------------

     SFSI shall pay  broker/dealers,  from its own resources,  a fee on sales of
$1,000,000  or  more,  calculated  as  follows:  1.00%  of  sales  up to but not
including $2 million;  .80% of sales from $2 million up to but not  including $3
    

                                       10
<PAGE>

   
million;  .50% of sales from $3 million up to but not including $5 million;  and
 .25% of sales from $5  million  and above.  The  calculation  of the fee will be
based on assets held by a "single person" as defined below.

     SFSI shall pay broker/dealers, from its own resources, an additional fee on
assets of certain  Class A shares of the Seligman  Mutual  Funds,  including the
Series,  participating in an "eligible  employee benefit plan" (as defined below
under "Special Programs") that are attributable to the particular broker/dealer.
The shares eligible for the fee are those on which an initial sales load was not
paid because  either the  participating  eligible  employee  benefit plan has at
least (i)  $500,000  invested in the  Seligman  Mutual Funds or (ii) 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
during a calendar  year,  or portion  thereof.  The payment  schedule,  for each
calendar year, is as follows: 1.00% of sales up to but not including $2 million;
 .80% of sales from $2 million up to but not including $3 million;  .50% of sales
from $3 million up to but not  including  $5 million;  and .25% of sales from $5
million and above.
    

     REDUCED  SALES LOADS.  Reductions in initial sales loads 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 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  with purchases made on
behalf of any other fiduciary or individual account.

   
     Shares purchased without an initial sales load in accordance with the sales
load schedule or pursuant to a Volume Discount,  Right of Accumulation or Letter
of Intent are subject to a CDSL of 1% on redemptions  within  eighteen months of
purchase.

     * VOLUME DISCOUNTS are provided if the total amount being invested in Class
A shares of the Series alone,  or in any  combination  of shares of the Seligman
Mutual Funds that are sold with an initial sales load,  reaches levels indicated
in the above sales load schedule.

     * THE RIGHT OF ACCUMULATION  allows an investor to combine the amount being
invested in shares of the other Seligman Mutual Funds sold with an initial sales
load with the total net asset  value of shares of those  Seligman  Mutual  Funds
already  owned that were sold with an initial sales load and the total net asset
value of shares of  Seligman  Cash  Management  Fund that were  acquired  by the
investor  through an exchange of shares of another Seligman Mutual Fund on which
there was an initial  sales load to determine  reduced sales loads in accordance
with the sales load  schedule.  An  investor  or a dealer  purchasing  shares on
behalf of any investor  must  indicate  that the investor has existing  accounts
when making investments or opening new accounts.

     * A LETTER OF INTENT  allows an investor to purchase  Class A shares of the
Series over a 13-month period at reduced initial sales loads, based on the total
amount of shares the investor intends to purchase plus the total net asset value
of shares of the other  Seligman  Mutual Funds already owned that were sold with
an initial  sales load and the total net asset value of shares of Seligman  Cash
Management  Fund that were  acquired  through an  exchange  of shares of another
Seligman  Mutual Fund on which there was an initial sales load. An investor or a
dealer  purchasing  Class A shares on behalf of any investor  must indicate that
the  investor  has  existing  accounts  when making  investments  or opening new
accounts. For more information concerning terms of Letters of Intent, see "Terms
and Conditions" on page 27.
    

     SPECIAL PROGRAMS.  The Series may sell Class A shares at net asset value to
present and retired directors,  trustees,  officers, employees and their spouses
(and  family  members  of the  foregoing)  of the  Fund,  the  other  investment
companies in the Seligman Group, the Manager and other companies affiliated with
the Manager. Family members are defined to include lineal descendants and lineal


                                       11
<PAGE>

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  and  thrift  plans  for such  persons  and to any  investment
advisory,  custodial, trust or other fiduciary account managed or advised by the
Manager or any affiliate.

   
     Class A  shares  also  may be  issued  without  an  initial  sales  load in
connection with the acquisition of cash and securities owned by other investment
companies and personal  holding  companies;  to any registered  unit  investment
trust  which is the  issuer  of  periodic  payment  plan  certificates,  the net
proceeds  of  which  are  invested  in  Series  shares;   to  separate  accounts
established  and  maintained  by an  insurance  company  which are  exempt  from
registration   under   Section   3(c)(11)  of  the  1940  Act;   to   registered
representatives  and  employees  (and their  spouses and minor  children) of any
dealer that has a sales  agreement  with SFSI; to  shareholders  of mutual funds
with  objectives  and policies  similar to the Series who  purchase  shares with
redemption  proceeds of such funds; to financial  institution trust departments;
to registered investment advisers exercising  discretionary investment authority
with  respect  to the  purchase  of Series  shares;  to  accounts  of  financial
institutions or broker/dealers that charge account management fees, provided the
Manager or one of its  affiliates  has entered into an agreement with respect to
such accounts;  pursuant to sponsored arrangements with organizations which make
recommendations to or permit group  solicitations of, its employees,  members or
participants  in  connection  with the purchase of shares of the Series;  and to
"eligible  employee benefit plans" which have at least (i) $500,000  invested in
the Seligman  Group of Mutual  Funds or (ii) 50 eligible  employees to whom such
plan is made  available.  "Eligible  employee  benefit  plan"  means any plan or
arrangement,  whether or not tax  qualified,  which provides for the purchase of
Series 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 number of eligible  employees.  Employee  benefit plans eligible for
net  asset  sales,  as  described  above,  will be  subject  to a CDSL of 1% for
terminations at the plan level only,  within 18 months of sales.  Sales pursuant
to the Merrill  Lynch MLII  multi-manager  401(k)  product are  available at net
asset value and are not subject to a CDSL.

     CLASS B SHARES.  Class B shares are sold without an initial  sales load but
are subject to a CDSL if the shares are redeemed within six years of purchase at
rates set forth in the table below,  charged as a percentage  of the current net
asset value or the original purchase price, whichever is less.

YEARS SINCE PURCHASE                                                       CDSL
- --------------------                                                       ----
less than 1 year........................................................     5%
1 year or more but less than 2 years....................................     4%
2 years or more but less than 3 years...................................     3%
3 years or more but less than 4 years...................................     3%
4 years or more but less than 5 years...................................     2%
5 years or more but less than 6 years...................................     1%
6 years or more.........................................................     0%
                                                              
     Class B shares are also subject to an annual  distribution  fee of .75% and
an annual  service fee of up to .25% of the average daily net asset value of the
Class B shares.  SFSI will make a 4% payment to dealers in respect of  purchases
of Class B shares. Approximately eight years after purchase, Class B shares will
convert  automatically to Class A shares, which are subject to an annual service
fee of .25% but no distribution  fee. Shares purchased  through  reinvestment of
dividends and distributions on Class B shares also will convert automatically to
Class A shares  along  with the  underlying  shares on which  they were  earned.
Conversion occurs at the end of the month which precedes the eighth  anniversary
of the purchase  date. If Class B shares of the Series are exchanged for Class B
shares of another Seligman Mutual Fund, the conversion  period applicable to the
Class B shares  acquired in the exchange will apply,  and the holding  period of
the  shares  exchanged  will be tacked  onto the  holding  period of the  shares

   
                                      -12-

<PAGE>

acquired.  Class B shareholders of the Series exercising the exchange  privilege
will  continue to be subject to the Series'  CDSL  schedule if such  schedule is
higher or longer than the CDSL schedule  relating to the new Class B shares.  In
addition,  Class B shares of the Series  acquired by exchange will be subject to
the Series'  CDSL  schedule  if such  schedule is higher or longer than the CDSL
schedule relating to the original Class B shares.

     CLASS D SHARES.  Class D shares are sold without an initial  sales load but
are  subject  to a CDSL if the shares are  redeemed  within one year,  an annual
distribution  fee of up to .75% and an annual  service fee of up to .25%, of the
average daily net asset value of the Class D shares. SFSI will make a 1% payment
to dealers in respect of  purchases  of Class D shares.  Unlike  Class B shares,
Class D shares do not automatically convert to Class A shares after eight years.

     CONTINGENT DEFERRED SALES LOAD. A CDSL will be imposed on any redemption of
Class B or Class D shares which were  purchased  during the  preceding six years
(for Class B shares) or twelve  months  (for Class D shares).  The amount of any
CDSL will be used by SFSI to defray  the  expense  of the  payment of 4% (in the
case of Class B  shares)  or 1% (in the case of  Class D  shares)  made by it to
Service  Organizations (as defined under  "Administration,  Shareholder Services
and Distribution  Plan") at the time of sale.  Pursuant to an agreement with FEP
Capital,  L.P.  ("FEP") to fund payments in respect of Class B shares,  SFSI has
agreed to sell any Class B CDSL to FEP.

     A CDSL of 1% will  also be  imposed  on any  redemption  of  Class A shares
purchased  during the preceding  eighteen months if such shares were acquired at
net asset value  pursuant to the sales load  schedule  provided  under  "Class A
Shares--Initial Sales Load." Employee benefit plans eligible for net asset sales
as described  above under "Special  Programs" may be subject to a CDSL of 1% for
terminations at the plan level only, on redemptions of shares  purchased  within
eighteen  months  prior to plan  termination.  No CDSL will be imposed on shares
acquired though the investment of dividends or  distributions  from any Class A,
Class B or Class D shares of mutual funds in the Seligman Group.

     To minimize the  application  of a CDSL to a  redemption,  shares  acquired
pursuant to the investment of dividends and distributions (which are not subject
to a CDSL) will be redeemed first;  followed by shares held for a period of time
longer than the  applicable  CDSL period.  Shares held for the longest period of
time within the applicable period will then be redeemed. Additionally, for those
shares  determined  to be subject to a CDSL,  the CDSL will be  assessed  on the
current net asset value or original purchase price, whichever is less.
    

     For example,  assume an investor purchased 100 Class D shares in January at
a price of $10.00 per share.  During the first year, 5 additional Class D shares
were acquired through investment of dividends and  distributions.  In January of
the following year, an additional 50 Class D shares were purchased at a price of
$12.00  per  share.  In March of that  year,  the  investor  chooses  to  redeem
$1,500.00 from the account which now holds 155 Class D shares with a total value
of  $1,898.75  ($12.25  per  share).  The  CDSL for  this  transaction  would be
calculated as follows:

Total shares to be redeemed
  (122.449 @ $12.25) as follows:              $1,500.00
                                              =========
Dividend/Distribution shares
     (5 @ $12.25)                              $  61.25

Shares held more than 1 year
     (100 @ $12.25)                            1,225.00

Shares held less than 1 year subject
     to CDSL (17.449 @ $12.25)                   213.75
                                              ---------
     Gross proceeds of redemption             $1,500.00

Less CDSL (17.449 shares @ $12.00 =
  $209.39 x 1% = $2.09)                           (2.09)
                                              ---------

     Net proceeds of redemption               $1,497.91
                                              =========

                                       13
<PAGE>

     For  Federal  income tax  purposes,  the amount of the CDSL will reduce the
gain or increase the loss,  as the case may be, on the amount  recognized on the
redemption of shares.

     The CDSL will be waived or reduced in the following instances:

   
     (a) on redemptions  following the death or disability of a shareholder,  as
defined in section 72 (m)(7) of the Internal  Revenue  Code of 1986,  as amended
(the "Code");  (b) in connection with (i)  distributions  from retirement  plans
qualified  under section 401(a) of the 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),  (ii)
distributions  from a custodial  account under section 403 (b)(7) of the Code or
an individual retirement account ("IRA") due to death, disability, or attainment
of age 591/2,  and (iii) a tax-free return of an excess  contribution to an IRA;
(c) in whole or in part, in  connection  with shares sold to current and retired
Trustees of the Fund; (d) 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 shares of any
registered  investment  management  company;  (e) pursuant to an automatic  cash
withdrawal  service;  and (f) in connection with the redemption of shares of the
Series if the Series is combined with another mutual fund in the Seligman Group,
or another similar reorganization transaction.

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

     SFSI 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 the mutual funds in the Seligman Group. SFSI 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 Series  and/or  certain other funds
managed by the Manager  during a specified  period of time.  Such bonus or other
incentive may take the form of payment for travel expenses,  including  lodging,
incurred in connection with trips taken by qualifying registered representatives
and members of their families to places within or outside the United States. The
cost to SFSI of such  promotional  activities  and payments  shall be consistent
with the Rules of the National Association of Securities Dealers,  Inc., as then
in effect. 

TELEPHONE TRANSACTIONS

     A shareholder with telephone transaction privileges,  AND THE SHAREHOLDER'S
BROKER/DEALER  REPRESENTATIVE,  will have the  ability to effect  the  following
transactions  via telephone:  (i) redemption of Series shares,  (ii) exchange of
Series  shares for shares of the same class of  another  Seligman  Mutual  Fund,
(iii) change of a dividend  and/or capital gain  distribution  option,  and (iv)
change of address. All telephone transactions are effected through Seligman Data
Corp. at (800) 221-2450.

     FOR INVESTORS WHO PURCHASE  SHARES BY COMPLETING  AND SUBMITTING AN ACCOUNT
APPLICATION  (EXCEPT THOSE ACCOUNTS REGISTERED AS TRUSTS (UNLESS THE TRUSTEE AND
SOLE BENEFICIARY ARE THE SAME PERSON),  CORPORATIONS OR GROUP RETIREMENT PLANS):
Unless an election is made otherwise on the Account  Application,  a shareholder
and the  shareholder's  broker/dealer  of record,  as  designated on the Account
Application, will automatically receive telephone services.

     FOR  INVESTORS  WHO  PURCHASE  SHARES  THROUGH A  BROKER/DEALER:  Telephone
services for a shareholder and the shareholder's  representative  may be elected

                                       14
<PAGE>

by  completing  a   supplemental   election   application   available  from  the
broker/dealer of record.

     FOR  ACCOUNTS  REGISTERED  AS IRAS:  Telephone  services  will include only
exchanges or address changes.

     FOR ACCOUNTS  REGISTERED AS TRUSTS (UNLESS THE TRUSTEE AND SOLE BENEFICIARY
ARE  THE  SAME  PERSON),  CORPORATIONS  OR  GROUP  RETIREMENT  PLANS:  Telephone
redemptions  are not permitted.  Additionally,  group  retirement  plans are not
permitted to change a dividend or gain distribution option.

   
     All Seligman  Mutual Funds with the same account  number (i.e.,  registered
exactly the same) as an existing  account,  including  any new fund in which the
shareholder invests in the future, will automatically include telephone services
if the existing account has telephone  services.  Telephone services may also be
elected at any time on a supplemental election application.
    

     For accounts registered jointly (such as joint tenancies, tenants in common
and community  property  registrations),  each owner, by accepting or requesting
telephone  services,  authorizes  each of the other  owners to effect  telephone
transactions on his or her behalf.

   
     During times of drastic  economic or market  changes,  a shareholder or the
shareholder's  representative may experience  difficulty in contacting  Seligman
Data Corp. to request a redemption  or exchange of Series shares via  telephone.
In these  circumstances,  the  shareholder or the  shareholder's  representative
should consider using other redemption or exchange procedures.  (See "Redemption
Of Shares"  below.) Use of these other  redemption or exchange  procedures  will
result in the  request  being  processed  at a later  time  than if a  telephone
transaction had been used, and the Series' net asset value may fluctuate  during
such periods.
    

     The Fund and  Seligman  Data Corp.  will employ  reasonable  procedures  to
confirm that  instructions  communicated  by telephone  are genuine.  These will
include:  recording all telephone calls requesting  account activity,  requiring
that the caller provide certain requested personal and/or account information at
the time of the call for the purpose of establishing the caller's identity,  and
sending a written  confirmation of redemptions,  exchanges or address changes to
the address of record each time activity is initiated by  telephone.  As long as
the Fund and Seligman Data Corp. follow  instructions  communicated by telephone
that  were  reasonably  believed  to be  genuine  at the time of their  receipt,
neither  they nor any of their  affiliates  will be  liable  for any loss to the
shareholder  caused by an  unauthorized  transaction.  In any instance where the
Fund or  Seligman  Data Corp.  is not  reasonably  satisfied  that  instructions
received  by  telephone  are  genuine,  the  requested  transaction  will not be
executed,  and neither they nor any of their  affiliates  will be liable for any
losses which may occur due to a delay in implementing  the  transaction.  If the
Fund or Seligman Data Corp. does not follow the procedures  described above, the
Fund or Seligman Data Corp. may be liable for any losses due to  unauthorized or
fraudulent  instructions.  Telephone  transactions  must be  effected  through a
representative  of Seligman Data Corp.,  i.e.,  requests may not be communicated
via Seligman Data Corp.'s automated telephone answering system. Shareholders, of
course,  may refuse or cancel  telephone  services.  Telephone  services  may be
terminated by a shareholder at any time by sending a written request to Seligman
Data  Corp.  TELEPHONE  SERVICES  MAY  NOT  BE  ESTABLISHED  BY A  SHAREHOLDER'S
BROKER/DEALER  WITHOUT THE WRITTEN  AUTHORIZATION  OF THE  SHAREHOLDER.  Written
acknowledgment  of  termination  of  telephone  services  will  be  sent  to the
shareholder at the address of record.


REDEMPTION OF SHARES

     A shareholder  may redeem  shares held in book credit form without  charge,
(except a CDSL,  if  applicable)  at any time by  SENDING A WRITTEN  REQUEST  to
Seligman  Data Corp.,  100 Park  Avenue,  New York,  N Y 10017.  The  redemption
request must be signed by all persons in whose name the shares are registered. A
shareholder  may redeem shares that are not in book credit form by  surrendering
certificates in proper form to the same address.  Certificates should be sent by
registered mail. Share certificates must be endorsed for transfer or accompanied
by an endorsed  stock power signed by all share owners  exactly as their name(s)

                                       15
<PAGE>

   
appear(s) on the account  registration.  The shareholder's letter of instruction
or endorsed stock power should specify the Series name, account number, class of
shares (A, B or D) and the number of shares or dollar amount to be redeemed. The
Fund cannot accept conditional  redemption requests.  If the redemption proceeds
are (i) $50,000 or more,  (ii) to be paid to someone other than the  shareholder
of record  (regardless  of the  amount)  or (iii) to be mailed to other than the
address  of  record  (regardless  of  the  amount),   the  signature(s)  of  the
shareholder(s)   must  be  guaranteed  by  an  eligible  financial   institution
including,  but not limited to, the following:  banks,  trust companies,  credit
unions,  securities  brokers  and  dealers,  savings and loan  associations  and
participants in the Securities Transfer  Association  Medallion Program (STAMP),
the Stock  Exchanges  Medallion  Program  (SEMP) and the New York Stock Exchange
Medallion  Signature  Program  (MSP).  The Fund  reserves  the right to reject a
signature guarantee where it is believed that the Fund will be placed at risk by
accepting such  guarantee.  A signature  guarantee is also necessary in order to
change  the  account  registration.  Notarization  by a notary  public is not an
acceptable signature guarantee. ADDITIONAL DOCUMENTATION MAY ALSO BE REQUIRED BY
SELIGMAN  DATA CORP. IN THE EVENT OF A REDEMPTION  BY A  CORPORATION,  EXECUTOR,
ADMINISTRATOR,  TRUSTEE,  CUSTODIAN OR RETIREMENT PLAN. FOR FURTHER  INFORMATION
WITH RESPECT TO REDEMPTION REQUIREMENTS, PLEASE CONTACT THE SHAREHOLDER SERVICES
DEPARTMENT OF SELIGMAN DATA CORP. FOR ASSISTANCE.

     In the case of Class A shares  (except  for  shares  purchased  without  an
initial sales load due to the size of the purchase),  and in the case of Class B
shares  redeemed  after six years and Class D shares  redeemed after one year, a
shareholder  will  receive the net asset value per share next  determined  after
receipt  of a request in good  order.  If Class A shares  which  were  purchased
without an initial  sales load because the  purchase  amount was  $1,000,000  or
more,  are redeemed  within  eighteen  months of purchase,  a  shareholder  will
receive the net asset value per share next determined after receipt of a request
in good order, less a CDSL of 1% as described under "Purchase of Shares--Class A
Shares--Initial  Sales Load" above.  If Class B shares are  redeemed  within six
years of purchase, A shareholder will receive the net asset value per share next
determined after receipt of a request in good order, less the applicable CDSL as
described under "Purchase Of Shares-Class B Shares" above. If Class D shares are
redeemed within one year of purchase,  a shareholder  will receive the net asset
value per share next determined after receipt of a request in good order, less a
CDSL of 1% as described under "Purchase Of Shares--Class D Shares" above.
    

     A  shareholder  also may "sell"  shares to the Fund  through an  investment
dealer and, in that way, be certain, providing the order is timely, of receiving
the net asset  value  established  at the end of the day on which the  dealer is
given the repurchase order (less any applicable  CDSL). The Fund makes no charge
for this  transaction,  but the  dealer  may  charge a  service  fee.  "Sell" or
repurchase  orders  received from an  authorized  dealer before the close of the
NYSE and received by SFSI, the repurchase agent, before the close of business on
the same day will be executed at the net asset value per share  determined as of
the close of the NYSE on that day, less any applicable CDSL.  Repurchase  orders
received from authorized  dealers after the close of the NYSE or not received by
SFSI prior to the close of  business,  will be  executed  at the net asset value
determined  as of the  close  of the  NYSE on the  next  trading  day,  less any
applicable CDSL. Shares held in a "street name" account with a broker/dealer may
be sold to the Fund only through a broker/dealer.

     TELEPHONE  REDEMPTIONS.  Telephone redemptions of uncertificated shares may
be made once per day,  in an  amount of up to  $50,000  per  account.  Telephone
redemption  requests  received by Seligman Data Corp. at (800) 221-2450  between
8:30 a.m. and 4:00 p.m.  Eastern  time, on any business day will be processed as
of the close of business on that day.  Redemption requests by telephone will not
be accepted  within 30 days following an address  change.  Keogh Plans,  IRAs or

                                       16
<PAGE>

   
other  retirement  plans are not eligible for  telephone  redemptions.  The Fund
reserves the right to suspend or terminate the telephone  redemption  service at
any time without notice.
    

     For more  information  about telephone  redemptions  and the  circumstances
under  which  a  shareholder  may  bear  the  risk  of  loss  for  a  fraudulent
transaction, see "Telephone Transactions" above.

   
     CHECK REDEMPTION SERVICE. The Check Redemption Service allows a shareholder
who owns or  purchases  shares in the  Series  worth  $25,000 or more to request
Seligman  Data  Corp.  to  provide   redemption   checks  to  be  drawn  on  the
shareholder's  account in amounts of $500 or more. The  shareholder may elect to
use this  Service on the  Account  Application  or by later  written  request to
Seligman Data Corp.  Shares for which  certificates have been issued will not be
available for  redemption  under this service.  Holders of Class A shares should
bear in mind that  check  redemptions  of Class A shares  acquired  at net asset
value due to the size of the purchase may be subject to a CDSL. Holders of Class
B shares may use this service  although check  redemptions of Class B shares may
be  subject  to a CDSL.  Holders  of Class D shares  may use this  service  with
respect to shares that have been held for at least one year.  Dividends continue
to be earned  through the date  preceding the date the check clears for payment.
Use of this  service is subject to Boston Safe  Deposit and Trust Co.  rules and
regulations  covering checking accounts.  Separate  checkbooks will be furnished
for each series of the Fund.
    

     There is no  charge  for use of  checks.  When  honoring  a check  that was
processed  for payment,  Boston Safe Deposit and Trust Co. will cause the Series
to redeem exactly enough full and fractional shares from an account to cover the
amount of the check.  If shares are owned  jointly,  redemption  checks  must be
signed by all persons,  unless otherwise elected on the Account Application,  in
which case a single signature will be acceptable.

   
     In view of daily  fluctuations in share value,  the  shareholder  should be
certain  that the  amount of shares in the  account is  sufficient  to cover the
amount of checks written. If insufficient  shares are in the account,  the check
will be returned,  marked "insufficient  funds." THE FUND WILL NOT REDEEM SHARES
IN ONE SERIES TO COVER A CHECK  WRITTEN ON ANOTHER  SERIES.  SELIGMAN DATA CORP.
WILL CHARGE A $10.00  PROCESSING FEE FOR ANY CHECK  REDEMPTION DRAFT RETURNED AS
UNCOLLECTABLE. THIS CHARGE MAY BE DEDUCTED FROM THE SHAREHOLDER'S
ACCOUNT.
    

     Check redemption books cannot be reordered unless the shareholder's account
has  a  value  of  $25,000  or  more  and  the  Fund  has a  certified  Taxpayer
Identification Number on file.

   
     Cancelled checks will be returned to a shareholder under separate cover the
month after they clear.  The Check  Redemption  Service may be terminated at any
time by the Fund or Boston Safe Deposit and Trust Co. See "Terms and Conditions"
on page 27.

     GENERAL.  With respect to shares redeemed, a check for the proceeds will be
sent to the  shareholders'  address of record  within seven  calendar days after
acceptance  of the  redemption  order  and  will be made  payable  to all of the
registered  owners on the  account.  With respect to shares  repurchased  by the
Fund,  a check for the proceeds  will be sent to the  investment  dealer  within
seven calendar days after  acceptance of the  repurchase  order and will be made
payable to the investment dealer. The Fund will not permit redemptions of shares
with respect to shares purchased by check (unless certified) until Seligman Data
Corp.  receives  notice that the check has  cleared,  which may be up to 15 days
from the credit of the shares to the  shareholder's  account.  The proceeds of a
redemption or repurchase may be more or less than the shareholder's cost.

     The Fund reserves the right to redeem  shares owned by a shareholder  whose
investment in the Series has a value of less than a minimum amount  specified by
the Fund's  Trustees,  which is  presently  $500.  Shareholders  would be sent a
notice  before such  redemption  is  processed  stating  that the value of their
    
                                       17
<PAGE>

investment in the Series is less than the  specified  minimum and that they have
sixty days to make an additional investment.

   
     REINSTATEMENT  PRIVILEGE.  If a shareholder redeems Class A shares and then
decides  to  reinvest  them,  or to shift  the  investment  to one of the  other
Seligman Mutual Funds, the shareholder may, within 120 calendar days of the date
of  redemption,  use  all or any  part  of the  proceeds  of the  redemption  to
reinstate,  free of an initial sales load,  all or any part of the investment in
shares of the Series or in shares of one of the other Seligman  Mutual Funds. If
a  shareholder  redeems  shares and the  redemption  was subject to a CDSL,  the
shareholder  may  reinstate  the  investment  in shares of the same class of the
Series or any of the other Seligman Mutual Funds within 120 calendar days of the
date of redemption and receive a credit for the CDSL paid.  Such investment will
be  reinstated at the net asset value per share  established  as of the close of
the  NYSE on the day the  request  is  received.  Seligman  Data  Corp.  must be
informed that the purchase is a reinstated investment. REINSTATED SHARES MUST BE
REGISTERED EXACTLY AND BE OF THE SAME CLASS AS THE SHARES PREVIOUSLY REDEEMED.
    

     Generally,  exercise  of the  Reinstatement  Privilege  does not  alter the
Federal  income  tax status of any  capital  gain  realized  on a sale of Series
shares,  but to the extent  that any shares are sold at a loss and the  proceeds
are reinvested in shares of the same Series, some or all of the loss will not be
allowed  as  a  deduction,   depending  upon  the  percentage  of  the  proceeds
reinvested.

ADMINISTRATION, SHAREHOLDER SERVICES AND DISTRIBUTION PLAN

   
     Under the Series'  Administration,  Shareholder  Services and  Distribution
Plan (the  "Plan"),  the Series may pay to SFSI an  administration,  shareholder
services  and  distribution  fee in respect of the Series'  Class A, Class B and
Class D shares. Payments under the Plan may include, but are not limited to: (i)
compensation   to   securities   dealers  and  other   organizations   ("Service
Organizations")  for providing  distribution  assistance  with respect to assets
invested in the Series, (ii) compensation to Service Organizations for providing
administration, accounting and other shareholder services with respect to Series
shareholders,  and (iii)  otherwise  promoting the sale of shares of the Series,
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 SFSI's costs incurred in connection with its
marketing efforts with respect to shares of the Series. The Manager, in its sole
discretion, may also make similar payments to SFSI from its own resources, which
may include the management fee that the Manager receives from the Series.
    

     Under the Plan, the Series reimburses SFSI for its expenses with respect to
Class A shares at an annual  rate of up to .25% of the  average  daily net asset
value of Class A  shares.  It is  expected  that  the  proceeds  from the fee in
respect  of  Class A  shares  will  be  used  primarily  to  compensate  Service
Organizations which enter into agreements with SFSI. Such Service  Organizations
will  receive  from  SFSI 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 the  maintenance of  shareholder  accounts.  The fee payable from
time to time is, within such limit, determined by the Trustees of the Fund.

   
     The Plan, as it relates to Class A shares,  was approved by the Trustees on
October 9, 1984 and was approved by the  shareholders of the Series on April 10,
1986. The Plan is reviewed by the Trustees  annually.  The total amount paid for
the year  ended  December  31,  1995 in respect  of the  Series'  Class A shares
pursuant to the Plan was equal to .21% of the Class A shares'  average daily net
assets.

     Under the Plan, the Series reimburses SFSI for its expenses with respect to
Class B and  Class D  shares  at an  annual  rate of up to 1% of the  respective
average  daily net asset value of the Class B and Class D shares.  Proceeds from
the Class B distribution fees are used to pay Service Organizations a continuing

                                       18
<PAGE>

fee of up to .25% on an annual  basis of the  average  daily net asset  value of
Class B shares  attributable to particular  Service  Organizations for providing
personal service and/or the maintenance of shareholder accounts and will also be
used by SFSI to defray the  expense  of the  payment of 4% made by it to Service
Organizations at the time of the sale of Class B shares. Proceeds from the Class
D distribution fees are used primarily to compensate  Service  Organizations for
administration,  shareholder services and distribution  assistance  (including a
continuing  fee of up to .25% on an annual basis of the average  daily net asset
value of Class D shares  attributable to particular  Service  Organizations  for
providing personal service and/or maintenance of shareholder  accounts) and will
initially  be used by SFSI to defray the expense of the payment of 1% made by it
to  Service  Organizations  at the time of sale of Class D shares.  The  amounts
expended by SFSI in any one year upon the initial  purchase of Class B and Class
D shares may exceed the  amounts  received  by it from Plan  payments  retained.
Expenses of administration, shareholder services and distribution of Class B and
Class D shares  in one  fiscal  year may be paid  from  Class B and Class D Plan
fees, respectively, received in any other fiscal year.

     The Plan, as it relates to Class B shares,  was approved by the Trustees on
September 19, 1996.  The Plan,  as it relates to Class D shares,  was amended by
the Trustees of the Fund on July 15, 1993.  The Plan is reviewed by the Trustees
annually.  The total  amount  paid for the year ended  December  31, 1995 by the
Series'  Class D shares  pursuant  to the Plan was 1% per  annum of the  average
daily net assets of the Class D shares.

     Seligman Services,  Inc. ("SSI"), an affiliate of the Manager, is a limited
purpose broker/dealer.  SSI acts as broker/dealer of record for most shareholder
accounts that do not have a designated  broker/dealer  of record,  including all
such  shareholder  accounts  established  after  April 1, 1995 and will  receive
compensation  for  providing  personal  service and account  maintenance  to its
accounts of record.

EXCHANGE PRIVILEGE

     A  shareholder  of the Series may,  without  charge,  exchange at net asset
value any part or all of an  investment  in the  Series  for shares of the other
series  of the  Fund or for  shares  of any of the  other  mutual  funds  in the
Seligman  Group.  Exchanges  may  be  made  by  mail,  or by  telephone  if  the
shareholder has telephone services.

     Class A,  Class B and  Class D shares  may be  exchanged  only for Class A,
Class B and Class D  shares,  respectively,  of the other  series of the Fund or
another  mutual fund in the  Seligman  Group on the basis of relative  net asset
value.

     If shares  that are subject to a CDSL are  exchanged  for shares of another
Seligman  Mutual  Fund,  then for  purposes of  assessing  the CDSL payable upon
disposition  of the exchanged  shares,  the  applicable  holding period shall be
reduced by the holding period of the original shares.

     Class B shareholders of the Series  exercising the exchange  privilege will
continue to be subject to the Series' CDSL  schedule if such  schedule is higher
or  longer  than  the CDSL  schedule  relating  to the new  Class B  shares.  In
addition, Class B shares of the Series acquired through exchange will be subject
to the Series' CDSL  schedule if such schedule is higher or longer than the CDSL
schedule  relating to the Class B shares of the Fund from which the exchange has
been made.
    

     The Seligman Mutual Funds available under the Exchange Privilege are:

     * SELIGMAN  CAPITAL  FUND,  INC.  seeks  aggressive  capital  appreciation.
Current income is not an objective.

     * SELIGMAN CASH MANAGEMENT  FUND, INC. invests in high quality money market
instruments. Shares are sold at net asset value.

     * SELIGMAN  COMMON STOCK FUND,  INC.  seeks  favorable  current  income and
long-term  growth of both income and capital value without  exposing  capital to
undue risk.

                                       19
<PAGE>

     * SELIGMAN  COMMUNICATIONS  AND INFORMATION FUND, INC. invests in shares of
companies in the  communications,  information and related industries to produce
capital gain. Income is not an objective.

     * SELIGMAN  FRONTIER  FUND,  INC. seeks to produce growth in capital value.
Income may be considered  but will only be  incidental to the fund's  investment
objective.

     * SELIGMAN GROWTH FUND, INC. seeks longer-term  growth in capital value and
an increase in future income.

   
     * SELIGMAN  HENDERSON  GLOBAL FUND  SERIES,  INC.  consists of the Seligman
Henderson  International  Fund, the Seligman  Henderson  Emerging Markets Growth
Fund,  the Seligman  Henderson  Global Growth  Opportunities  Fund, the Seligman
Henderson  Global  Smaller  Companies  Fund and the  Seligman  Henderson  Global
Technology  Fund,  which  seek  long-term  capital  appreciation   primarily  by
investing in companies either globally or internationally.
    

     * SELIGMAN  HIGH INCOME FUND SERIES seeks high current  income by investing
in debt  securities.  In  addition  to the  Series,  the  Fund  consists  of the
High-Yield Bond Series.

   
     * SELIGMAN  INCOME FUND, INC. seeks high current income and the possibility
of improvement of future income and capital value.

     * SELIGMAN NEW JERSEY  MUNICIPAL FUND, INC. invests in investment grade New
Jersey tax-exempt securities. (Does not currently offer Class B shares.)

     * SELIGMAN  PENNSYLVANIA  MUNICIPAL FUND SERIES invests in investment grade
Pennsylvania tax-exempt securities. (Does not currently offer Class B shares.)

     * SELIGMAN MUNICIPAL FUND SERIES, INC. consists of several State Series and
a National Series. The National Municipal Series seeks to provide maximum income
exempt from regular Federal income taxes;  individual state series, each seeking
to maximize  income exempt from regular  Federal  income taxes and from personal
income  taxes  in  designated  states  are  available  for  Colorado,   Georgia,
Louisiana,  Maryland,  Massachusetts,  Michigan, Minnesota,  Missouri, New York,
Ohio, Oregon and South Carolina. (Does not currently offer Class B shares.)

     * SELIGMAN  MUNICIPAL SERIES TRUST includes the California  Tax-Exempt High
Yield Series,  the California  Tax-Exempt Quality Series, the Florida Tax-Exempt
Series  and the North  Carolina  Tax-Exempt  Series,  each of which  invests  in
tax-exempt  securities of it's designated state. (Does not currently offer Class
B shares.)
    

     All  permitted  exchanges  will be based  on the net  asset  values  of the
respective  funds  determined  at the close of the NYSE on that  day.  Telephone
requests for exchanges received between 8:30 a.m. and 4:00 p.m. Eastern time, on
any business day, by Seligman Data Corp. at (800) 221-2450, will be processed as
of the close of business on that day. The  registration of an account into which
an exchange is made must be  identical to the  registration  of the account from
which shares are  exchanged.  When  establishing a new account by an exchange of
shares,  the shares  being  exchanged  must have a value of at least the minimum
initial investment  required by the mutual fund into which the exchange is being
made. The method of receiving distributions, unless otherwise indicated, will be
carried  over to the new  fund  account,  as will  telephone  services.  Account
services, such as Invest-A-Check(R) Service, DirecteD Dividends,  Automatic Cash
Withdrawal  Service and Check Writing  Privilege will not be carried over to the
new fund account  unless  specifically  requested and permitted by the new fund.
Exchange  orders may be placed to effect an  exchange  of a  specific  number of
shares,  an exchange of shares equal to a specific  dollar amount or an exchange
of all shares held.  Shares for which  certificates  have been issued may not be
exchanged  via  telephone  and may be  exchanged  only upon receipt of a written
exchange request together with certificates  representing shares to be exchanged
in proper form.

   
     The Exchange  Privilege via mail is generally  applicable to investments in
group retirement  plans,  although some restrictions may apply. The terms of the
exchange offers described herein may be modified at any time; and not all of the

                                       20
<PAGE>

mutual  funds in the  Seligman  Group are  available to residents of all states.
Before  making  any  exchange,   a  shareholder  should  contact  an  authorized
investment  dealer or Seligman Data Corp. to obtain  prospectuses  of any of the
Seligman Mutual Funds.

     A broker/dealer  representative  of record will be able to effect exchanges
on behalf of a shareholder only if the shareholder has telephone services or the
broker/dealer has entered into a Telephone  Exchange Agreement with SFSI wherein
the  broker/dealer  must agree to indemnify  SFSI and the Seligman  Mutual Funds
from any loss or liability  incurred as a result of the  acceptance of telephone
exchange orders.

     Written  confirmation of all exchanges will be forwarded to the shareholder
to whom the exchanged shares are registered and a duplicate confirmation will be
sent to the  broker/dealer  of record  listed on the account.  SFSI reserves the
right to reject any telephone exchange request.  Any rejected telephone exchange
order may be processed by mail. For more  information  about telephone  exchange
privileges,  which  unless  objected  to,  are  assigned  to  most  shareholders
automatically,  and the circumstances under which shareholders may bear the risk
of loss for a fraudulent transaction, see "Telephone Transactions" above.
    

     Exchanges  of shares are sales and may result in a gain or loss for Federal
income tax purposes.

FURTHER INFORMATION ABOUT TRANSACTIONS IN THE SERIES

     Because excessive trading (including  short-term,  "market timing" trading)
can hurt the Series' performance,  the Fund may refuse any exchange (1) from any
shareholder  account from which there have been two  exchanges in the  preceding
three month period,  or (2) where the exchanged shares equal in value the lesser
of  $1,000,000  or 1% of the Series'  net  assets.  The Fund may also refuse any
exchange or purchase order from any  shareholder  account if the  shareholder or
the  shareholder's  broker/dealer  has been  advised that  previous  patterns of
purchases and redemptions or exchanges have been considered excessive.  Accounts
under common  ownership or control,  including  those with the same  taxpayer ID
number and those  administered  so as to redeem or  purchase  shares  based upon
certain predetermined market indicators, will be considered one account for this
purpose.  Additionally,  the Fund reserves the right to refuse any order for the
purchase of shares.


DIVIDENDS AND DISTRIBUTIONS

     The Series' net investment income is distributed to shareholders monthly in
the form of additional shares, unless the shareholder elects otherwise. Payments
vary in amount depending on income received from the Series' investments and the
costs of operations. Shares begin earning dividends on the day on which the Fund
receives  payment.  Shares continue to earn dividends through the date preceding
the date they are redeemed.

     The Series  distributes  substantially all of any taxable net long-term and
short-term gain realized on investments to  shareholders  at least annually.  In
determining  amounts  of  capital  gains to be  distributed,  any  capital  loss
carryforwards from prior years will offset capital gains. For Federal income tax
purposes,  the Series had a capital loss carryforward as of December 31, 1995 of
$16,299,262 (including $2,420,836 transferred from the Seligman Secured Mortgage
Income Series), of which $1,652,560 expires in 1996, $2,286,339 expires in 1997,
$3,877,110  expires in 1998,  $12,467 expires in 2001 and $8,470,786  expires in
2002.  Accordingly,  the Series may not distribute  capital gains (short-term or
long-term) to  shareholders  until net gains have been realized in excess of the
capital loss carryforward.

     Shareholders   may  elect:   (1)  to  receive  both   dividends   and  gain
distributions in shares; (2) to receive dividends in cash and gain distributions
in shares;  (3) to receive both dividends and gain  distributions  in cash. Cash
dividends  and gain  distributions  are paid by check.  In the case of prototype
retirement plans,  dividends and gain distributions are reinvested in additional

                                       21
<PAGE>

   
shares.   Unless   another   election  is  made,   dividends  and  capital  gain
distributions  will be credited to  shareholder  accounts in additional  shares.
Shares  acquired  through a dividend  or gain  distribution  and  credited  to a
shareholder's  account  are not  subject  to an  initial  sales  load or a CDSL.
Dividends and gain distributions paid in shares are invested on the payable date
using the net asset value of the  ex-dividend  date.  Shareholders  may elect to
change their  dividend and gain  distribution  options by writing  Seligman Data
Corp. at the address listed below. If the  shareholder  has telephone  services,
changes may also be telephoned to Seligman Data Corp. between 8:30 a.m. and 6:00
p.m.  Eastern time, by either the shareholder or the  broker/dealer of record on
the  account.   For  information  about  telephone   services,   see  "Telephone
Transactions."  These  elections must be received by Seligman Data Corp.  before
the record date for the dividend or  distribution  in order to be effective  for
such dividend or distribution.

     The per share  dividends from net investment  income on Class B and Class D
shares will be lower than the per share  dividends on Class A shares as a result
of the higher  distribution  fees applicable with respect to Class B and Class D
shares.  Per share dividends of the three classes may also differ as a result of
differing  class expenses.  Distributions  of net capital gains, if any, will be
paid in the same amount for Class A, Class B and Class D shares.  See  "Purchase
Of Shares--Valuation."
    

     Shareholders  exchanging  shares of one  mutual  fund for shares of another
mutual fund in the Seligman  Group will continue to receive  dividends and gains
as elected prior to such exchange unless otherwise specified.  In the event that
a shareholder  redeems all shares in an account  between the record date and the
payable date, the value of any dividends or gain distributions  declared will be
paid in cash regardless of the existing election.

FEDERAL INCOME TAXES

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

     Dividends from net investment income and distributions  from net short-term
capital  gains are  taxable  as  ordinary  income to the  shareholders,  whether
received in cash or reinvested in additional  shares,  and are,  generally,  not
eligible for the dividends received deduction for corporations.

     Distributions  of net  capital  gain,  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 shares have been held by the shareholders;  such  distributions are not
eligible for the dividends received deduction allowed to corporate shareholders.
As noted above, the Series must exhaust its capital loss carry forward before it
may make capital gain distributions to shareholders.

     Any gain or loss realized upon a sale or redemption of shares in the Series
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.  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  Series  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 (such as through  dividend  reinvestment)
securities that are substantially identical to the shares of the Series.

     In  determining  gain or loss on  shares  of the  Series  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 load

                                       22
<PAGE>

incurred in acquiring such shares to the extent of any  subsequent  reduction in
the sales load by reason of the Exchange or Reinstatement  Privilege  offered by
the Series.  Any sales load not taken into account in determining  the tax basis
of shares sold or exchanged  within 90 days after  acquisition  will be added to
the  shareholder's  tax basis in the shares acquired pursuant to the Exchange or
Reinstatement Privilege.

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

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

     UNLESS A SHAREHOLDER  INCLUDES A CERTIFIED TAXPAYER  IDENTIFICATION  NUMBER
(SOCIAL  SECURITY  NUMBER  FOR  INDIVIDUALS)  ON  THE  ACCOUNT  APPLICATION  AND
CERTIFIES THAT THE SHAREHOLDER IS NOT SUBJECT TO BACKUP WITHHOLDING, THE FUND IS
REQUIRED TO WITHHOLD AND REMIT TO THE U.S.  TREASURY A PORTION OF  DISTRIBUTIONS
AND OTHER REPORTABLE PAYMENTS TO THE SHAREHOLDER. THE RATE OF BACKUP WITHHOLDING
IS 31%. SHAREHOLDERS SHOULD BE AWARE THAT, UNDER REGULATIONS  PROMULGATED BY THE
INTERNAL  REVENUE  SERVICE,  THE FUND MAY BE FINED $50 ANNUALLY FOR EACH ACCOUNT
FOR WHICH A CERTIFIED  TAXPAYER  IDENTIFICATION  NUMBER IS NOT PROVIDED.  IN THE
EVENT THAT SUCH A FINE IS  IMPOSED,  THE FUND MAY CHARGE A SERVICE  FEE OF UP TO
$50 THAT MAY BE DEDUCTED FROM THE  SHAREHOLDER'S  ACCOUNT AND OFFSET AGAINST ANY
UNDISTRIBUTED DIVIDENDS AND CAPITAL GAINS DISTRIBUTIONS.  THE FUND ALSO RESERVES
THE  RIGHT TO CLOSE  ANY  ACCOUNT  WHICH  DOES  NOT  HAVE A  CERTIFIED  TAXPAYER
IDENTIFICATION NUMBER.

SHAREHOLDER INFORMATION

     Shareholders  will be sent  reports  semi-annually  regarding  the  Series.
General  information  about the Series may be requested by writing the Corporate
Communications/Investor   Relations   Department,   J.  &  W.   Seligman  &  Co.
Incorporated,  100  Park  Avenue,  New  York,  NY 10017  or by  telephoning  the
Corporate   Communications/Investor  Relations  Department  toll-free  at  (800)
221-7844 from all continental United States,  except New York, or (212) 850-1864
in New  York  State  and the  Greater  New York  City  area.  Information  about
shareholder accounts may be requested by writing Shareholder Services,  Seligman
Data  Corp.  at the same  address or by  toll-free  telephone  by dialing  (800)
221-2450  from  all  continental  United  States.  Seligman  Data  Corp.  may be
telephoned  Monday through Friday (except  holidays),  between the hours of 8:30
a.m.  and 6:00 p.m.  Eastern  time,  and  calls  will be  answered  by a service
representative.

     24 HOUR  TELEPHONE  ACCESS IS  AVAILABLE  BY DIALING  (800)  622-4597  ON A
TOUCHTONE PHONE, WHICH PROVIDES INSTANT ACCESS TO PRICE, YIELD, ACCOUNT BALANCE,
MOST RECENT TRANSACTION AND OTHER INFORMATION.  IN ADDITION, ACCOUNT STATEMENTS,
FORM  1099-DIVS AND  CHECKBOOKS  MAY BE ORDERED.  TO INSURE  PROMPT  DELIVERY OF
DISTRIBUTION  CHECKS,  ACCOUNT STATEMENTS AND OTHER  INFORMATION,  SELIGMAN DATA
CORP. SHOULD BE NOTIFIED  IMMEDIATELY IN WRITING OF ANY ADDRESS CHANGE.  ADDRESS
CHANGES  MAY BE  TELEPHONED  TO  SELIGMAN  DATA  CORP.  IF THE  SHAREHOLDER  HAS
TELEPHONE  SERVICES.   FOR  MORE  INFORMATION  ABOUT  TELEPHONE  SERVICES,   SEE
"TELEPHONE TRANSACTIONS" ABOVE.

   
     ACCOUNT   SERVICES.   Shareholders  are  sent   confirmation  of  financial
transactions in their account.
    
     
     Other investor services are available. These include:

     * INVEST-A-CHECK(R)  SERVICE enables a shareholder to authorize  additional
purchases  of  shares  automatically  by  electronic  fundS  transfer  from  the
shareholders  savings or checking account, if the shareholder's bank is a member
of the Automated Clearing House ("ACH"), or by preauthorized  checks to be drawn

                                       23
<PAGE>

   
on the  shareholder's  checking  account at regular  monthly  intervals in fixed
amounts  of $100 or more per  fund,  or  regular  quarterly  intervals  in fixed
amounts  of  $250  or  more  per  fund,  to  purchase  shares.  Accounts  may be
established concurrently with the Invest-A-Check(R)  Service only if accompanied
by a $100 minimum in conjunction  with the monthlY  investment  option or a $250
minimum in conjunction  with the quarterly  investment  option.  (See "Terms and
Conditions" on page 27.)

     * AUTOMATIC  DOLLAR-COST-AVERAGING  SERVICE  permits a  shareholder  of the
Seligman Cash Management Fund to exchange a specified amount, at regular monthly
intervals  in fixed  amounts  of $100 or more per  fund,  or  regular  quarterly
intervals in fixed amounts of $250 or more per fund, from shares of any class of
the Cash  Management  Fund into  shares of the same class of any other  Seligman
Mutual Fund registered in the same name. The shareholder's  Cash Management Fund
account must have a value of at least $5,000 at the  initiation  of the service.
Exchanges will be made at the public offering price.

     * DIVIDENDS FROM OTHER INVESTMENTS permits a shareholder to order dividends
payable on shares of other  companies to be paid to and  invested in  additional
shares of the Series or another Seligman Mutual Fund. (Dividend checks must meet
or exceed the required  minimum  purchase  amount and include the  shareholder's
name,  account number, the name of the fund and the class of shares in which the
investment is to be made.)

     * AUTOMATIC CD TRANSFER SERVICE permits a shareholder to instruct a bank to
invest the proceeds of a maturing bank  certificate  of deposit ("CD") in shares
of any  designated  Seligman  Mutual  Fund.  Shareholders  who  wish to use this
service should  contact  Seligman Data Corp. or a broker to obtain the necessary
documentation.  Banks may  charge a  penalty  on CD  assets  withdrawn  prior to
maturity.  Accordingly,  it will not  normally be  advisable  to  liquidate a CD
before its maturity.

     * AUTOMATIC CASH WITHDRAWAL  SERVICE permits payments at regular  intervals
to be made to a  shareholder  who owns or purchases  shares worth $5,000 or more
held as book  credits.  Holders of Class A shares  purchased  at net asset value

because  the  purchase  amount was  $1,000,000  or more should bear in mind that
withdrawals will be subject to a CDSL if made within eighteen months of purchase
of such  shares.  Holders  of Class B  shares  may  elect  to use  this  service
immediately,  although  certain  withdrawals  may be subject  to a CDSL.  Please
contact Seligman Data Corp. at (800) 221-2450 for more  information.  Holders of
Class D shares may elect to use this  service  with  respect to shares that have
been held for at least one year. (See "Terms and Conditions" on page 27.)

     * DIRECTED  DIVIDENDS  allows a  shareholder  to pay  dividends  to another
person or to direct the payment of such  dividends  to another  Seligman  Mutual
Fund for purchase at net asset value.  Dividends on Class A, Class B and Class D
shares may only be  directed  to shares of the same  class of  another  Seligman
Mutual Fund.
    

     * OVERNIGHT  DELIVERY to service  shareholder  requests is available  for a
$15.00 fee which may be deducted from a shareholder's account, if requested.

     * COPIES OF ACCOUNT  STATEMENTS  will be sent to each  shareholder  free of
charge for the  current  year and most  recent  prior  year.  Copies of year-end
statements  for prior years back to 1985 are  available  for a fee of $10.00 per
year, per account, with a maximum charge of $150 per account. Statement requests
should be forwarded, along with a check, to Seligman Data Corp.

     * TAX-DEFERRED  RETIREMENT PLANS. Shares of the Series may be purchased for
all types of tax-deferred  retirement  plans.  SFSI makes available plans,  plan
forms and custody agreements for:

     -Individual Retirement Accounts (IRAs);
     -Simplified Employee Pension Plans (SEPs);
     -Section 401(k) Plans for corporations and their employees;
     -Section 403(b)(7) Plans for employees of public school systems and certain
non-profit  organizations who wish to make deferred  compensation  arrangements;
and
     -Pension  and  Profit  Plans  for sole  proprietorships,  partnerships  and
corporations.

                                       24
<PAGE>

   
     These  types of plans may be  established  only upon  receipt  of a written
application  form.  The Fund may register an IRA investment for which an account
application has not been received as an ordinary taxable account.
    
     For more information,  write Retirement Plan Services, Seligman Data Corp.,
100 Park Avenue,  New York, NY 10017 or telephone  toll-free (800) 445-1777 from
all  continental  United  States.  You also may receive  information  through an
authorized dealer.

ADVERTISING THE SERIES' PERFORMANCE

   
     From time to time the Series  advertises  its "yield,"  "total  return" and
"average annual total return," each of which are calculated separately for Class
A, Class B and Class D shares.  THESE FIGURES ARE BASED ON  HISTORICAL  EARNINGS
AND ARE NOT INTENDED TO INDICATE FUTURE  PERFORMANCE.  The "yield" of a class of
the Series refers to the income  generated by an investment in that class over a
30-day period.  This income is then  "annualized." That is, the amount of income
generated by the investment during that 30-day period is assumed to be generated
each  30-day  period  for twelve  periods  and is shown as a  percentage  of the
investment. The income earned on the investment is also assumed to be reinvested
at the  end of the  sixth  30-day  period.  The  "total  return"  shows  what an
investment in shares of a class of the Series would have earned over a specified
period  of time (for  example,  one,  five and ten years or from the  inception)
assuming the payment of the maximum sales load, if any, when the  investment was
first  made  and  that  all  distributions  and  dividends  by that  class  were
reinvested  on the  reinvestment  dates during the period.  The "average  annual
total return" is the annual rate required for the initial payment to grow to the
amount which would be received at the end of the specified period (one, five and
ten years or from the  inception);  i.e.,  the average  annual  compound rate of
return.  Total  return and average  annual  total  return may also be  presented
without the effect of the initial sales load or CDSL, as applicable.

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

ORGANIZATION AND CAPITALIZATION

     The Fund is a diversified, open-end management investment company organized
under the laws of the  Commonwealth of  Massachusetts  by a Declaration of Trust
dated July 27, 1984.  The  Declaration of Trust permits the Trustees to issue an
unlimited number of full and fractional shares of beneficial interest, $.001 par
value. The Trustees also have the power to create additional series of shares.

     Shares of  beneficial  interest of two series have been  authorized,  which
shares  of  beneficial  interest  constitute  interests  in the  Series  and the
Seligman High-Yield Bond Series. Shares of beneficial interest of the Series and
the Seligman  High-Yield  Bond Series are divided into three  classes  (Class A,
Class B and Class D). Each share of  beneficial  interest of the Series' and the
Seligman  High-Yield  Bond Series'  respective  classes 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.  The Fund has adopted a plan

                                       25
<PAGE>

(the `Multiclass Plan") pursuant to Rule 18f-3 under the 1990 Act permitting the
issuance  and sale of  multiple  classes of shares of  beneficial  interest.  In
accordance  with the  Declaration  of Trust,  the  Trustees  may  authorize  the
creation  of  additional  classes  of shares of  beneficial  interest  with such
characteristics as are permitted by the Multiclass Plan and Rule 18f-3. The 1940
Act requires that where more than one class exists, each class must be preferred
over all other  classes  in  respect of assets  specifically  allocated  to such
class.  Shares  entitle  their  holders  to one  vote  per  share.  Shares  have
noncumulative  voting rights, do not have preemptive or subscription  rights and
are transferable. It is the intention of the Fund not to hold Annual Meetings of
Shareholders.  The Trustees may call Special Meetings of Shareholders for action
by shareholder  vote as may be required by the 1940 Act or Declaration of Trust.
Pursuant  to the 1940 Act,  shareholders  have to approve  the  adoption  of any
management contract, distribution plan and any changes in fundamental investment
policies. Shareholders also have the right to call a meeting of shareholders for
the purpose of voting on the removal of one or more  Trustees.  Such removal can
be effected upon the action of two-thirds of the outstanding shares of the Fund.

                                       26
<PAGE>
                              TERMS AND CONDITIONS
                           GENERAL ACCOUNT INFORMATION

   
    Investments will be made in as many shares, including fractions to the third
decimal place,  as can be purchased at the net asset value plus a sales load, if
applicable,  at the close of business on the day payment is received. If a check
received  in payment  of a  purchase  of shares is  dishonored  for any  reason,
Seligman  Data Corp.  may cancel the  purchase  and may also  redeem  additional
shares,  if any, held in the  shareholder's  account in an amount  sufficient to
reimburse  the Fund for any loss it may have incurred and charge a $10.00 return
check fee.  Shareholders  will receive  dividends from investment income and any
distributions  from gain realized on  investments in shares or in cash according
to the option  elected.  Dividend  and gain  options may be changed by notifying
Seligman Data Corp. These option changes must be received by Seligman Data Corp.
before the record date for the dividend or distribution to be effective for such
dividend  or  distribution.   Stock  certificates  will  not  be  issued  unless
requested. Replacement stock certificates will be subject to a surety fee.

                            INVEST-A-CHECK(R) SERVICE
    The  Invest-A-Check(R)  Service  is  available  to  all  shareholders.   The
application is subject to acceptance by the shareholder's banK and Seligman Data
Corp. The electronic funds transfer ("ACH debit") or preauthorized  check in the
amount specified will be drawn  automatically on the  shareholder's  bank on the
fifth day (unless  otherwise  specified) of each month (or on the prior business
day if such  day of the  month  falls  on a  weekend  or  holiday)  in  which an
investment is scheduled and invested at the public  offering  price at the close
of business on the same date. After the initial investment,  the value of shares
held in the  shareholder's  account  must  equal  not less  than  two  regularly
scheduled  investments.  If a check is not honored by the shareholder's bank, or
if  the  value  of  shares  held  falls   below  the   required   minimum,   the
Invest-A-Check(R)  Service  may be  suspended.  In the event that a check or ACH
debit iS  returned  as  uncollectable,  Seligman  Data  Corp.  will  cancel  the
purchase,  redeem  shares  held  in the  shareholder's  account  for  an  amount
sufficient  to reimburse the Fund for any loss it may have incurred as a result,
and  charge  a $10.00  return  check  fee.  This  fee may be  deducted  from the
shareholder's  account.  The  Invest-A-Check(R)  Service may be reinstated  upon
written request  indicating  thaT the cause of interruption  has been corrected.
The Invest-A-Check(R) Service may be terminated by the shareholder's or Seligman
DatA Corp. at any time by written  notice.  The  shareholder  agrees to hold the
Fund and its agents free from all  liability  which may result from acts done in
good  faith  and  pursuant  to  these  terms.   Instructions   for  establishing
Invest-A-Check(R)  Service are given on thE Account Application.  In the event a
shareholder  exchanges  all of the  shares  from  one  Seligman  Mutual  Fund to
another, the Invest-A-Check(R) Service will be terminated in the Seligman Mutual
Fund  that  was  closed  as a  result  of the  exchange  of all  shares  anD the
shareholder  must  re-apply  for the  Invest-A-Check(R)  Service in the Seligman
Mutual  Fund  into  which  the  exchange  was  made.  In thE  event of a partial
exchange, the Invest-A-Check(R) Service will be continued,  subject to the above
conditions,  in the  Seligman  MutuaL  Fund from  which the  exchange  was made.
Accounts established in conjunction with the  Invest-A-Check(R)  Service must be
accompanied  by A minimum  initial  investment  of $100 in  connection  with the
monthly  investment  option or $250 in connection with the quarterly  investment
option.  If a  shareholder  uses the  Invest-A-Check(R)  Service  to make an IRA
investment,  the purchase will be credited as A current year contribution.  If a
shareholder  uses the  Invest-A-Check(R)  to make an  investment in a pension or
profit  sharing  plan,  thE purchase will be credited as a current year employer
contribution.

                        AUTOMATIC CASH WITHDRAWAL SERVICE
    The Automatic Cash Withdrawal  Service is available to Class A shareholders,
to Class B  shareholders  and to Class D  shareholders  with  respect to Class D
shares held for one year or more.  A  sufficient  number of full and  fractional
shares will be redeemed to provide the amount required for a scheduled  payment.
Redemptions  will be made at the net asset value at the close of business on the
specific  day  designated  by the  shareholder  of each  month  (or on the prior
business day if the day specified  falls on a weekend or holiday),  less, in the
case of Class B shares,  any applicable CDSL.  Automatic  withdrawals of Class A
shares which were  purchased at net asset value because the purchase  amount was
$1,000,000  or more  will be  subject  to a CDSL if made  within  18  months  of
purchase  of such  shares.  A  shareholder  may change  the amount of  scheduled
payments or may suspend  payments by written  notice to Seligman  Data Corp.  at
least ten days prior to the effective date of such a change or  suspension.  The
Service may be terminated by the  shareholder or Seligman Data Corp. at any time
by written notice.  It will be terminated upon proper  notification of the death
or legal incapacity of the shareholder. This Service is considered terminated in
the event a  withdrawal  of  shares,  other  than to make  scheduled  withdrawal
payments,  reduces the value of shares remaining on deposit to less than $5,000.
Continued  payments  in excess of  dividend  income  invested  will  reduce  and
ultimately exhaust capital. Withdrawals,  concurrent with purchases of shares of
this or any other investment  company,  will be  disadvantageous  because of the
payment of duplicative sales loads, if applicable.  For this reason,  additional
purchases of Series shares are  discouraged  when the  Withdrawal  Service is in
effect.

                     LETTER OF INTENT -- CLASS A SHARES ONLY
    Seligman Financial Services,  Inc. will hold in escrow shares equal to 5% of
the minimum  purchase  amount  specified.  Dividends  and  distributions  on the
escrowed shares will be paid to the shareholder or credited to the shareholder's
account.   Upon  completion  of  the  specified   minimum  purchase  within  the
thirteen-month  period,  all shares  held in escrow will be  deposited  into the
shareholder's account or delivered to the shareholder. A shareholder may include
toward the  completion  of a Letter of Intent the total asset value of shares of
the Seligman Mutual Funds on which an initial sales load was paid as of the date
of the Letter.  If the total amount  invested within the  thirteen-month  period
does not equal or exceed the specified minimum purchase, the shareholder will be
requested  to pay the  difference  between the amount of the sales load paid and
the amount of the sales load  applicable to the total  purchase made. If, within
20 days following the mailing of a written request, the shareholder has not paid
this  additional  sales load to Seligman  Financial  Services  Inc.,  sufficient
escrowed  shares will be  redeemed  for  payment of the  additional  sales load.
Shares  remaining  in  escrow  after  this  payment  will  be  released  to  the
shareholder's account. The intended purchase amount may be increased at any time
during  the  thirteen-month  period by filing a revised  Agreement  for the same
period,  provided that a Dealer furnishes  evidence that an amount  representing
the reduction in sales load under the new Agreement, which becomes applicable on
purchases  already  made under the original  Agreement,  will be refunded to the
Fund and that the required  additional  escrowed shares will be purchased by the
shareholder.

    Shares of Seligman Cash Management Fund, Inc. which have been acquired by an
exchange of shares of another  Seligman Mutual Fund on which there is an initial
sales load may be taken into account in  completing  a Letter of Intent,  or for
Right of  Accumulation.  However,  shares of the Seligman Cash  Management  Fund
which have been  purchased  directly may not be used for purposes of determining
reduced sales loads on additional purchases of the other Seligman Mutual Funds.

                            CHECK REDEMPTION SERVICE
    The Check Redemption Service is available to Class A shareholders,  to Class
B shareholders  and to Class D shareholders  with respect to Class D shares held
for one year or more. If shares are held in joint names, all  shareholders  must
sign the Check Redemption  section of the Account  Application.  All checks will
require  all  signatures  unless a  lesser  number  is  indicated  in the  Check
Redemption section. Accounts in the names of corporations, trusts, partnerships,
etc.  must  list  all  authorized  signatories.  In all  cases,  each  signature
guarantees the genuineness of the other signatures.  Checks may not be drawn for
less than $500.

    The shareholder authorizes Boston Safe Deposit and Trust Co. to honor checks
drawn by the shareholder on the account of Seligman U.S.  Government  Securities
Series and to effect a redemption of sufficient shares in the shareholder's Fund
account to cover  payment of the check and,  in the case of Class B shares,  any
applicable  CDSL.  For Class A shares  which were  purchased  at net asset value
because the purchase amount was $1,000,000 or more, check redemptions  within 18
months of purchase will be subject to a CDSL. The shareholder  understands  that
shares in one  Series  cannot be  redeemed  to cover a check  written on another
series.

    Boston  Safe  Deposit  and  Trust  Co.  shall  be  liable  only  for its own
negligence.  The Fund will not be liable for any loss,  expense or cost  arising
out of check  redemptions.  The Fund  reserves  the right to  change,  modify or
terminate  this service at any time upon  notification  mailed to the address of
record of the shareholder(s).

    Seligman  Data  Corp.  will  charge a $10.00  processing  fee for any  check
redemption draft returned as uncollectable. This charge may be deducted from the
account  against  which the check was  drawn.  No  redemption  proceeds  will be
remitted to a  shareholder  with respect to shares  purchased  by check  (unless
certified) until Seligman Data Corp.  receives notice that the check has cleared
which may be up to 15 days from the  credit of the  shares to the  shareholder's
account.
                                                                            1/97
                                       27
    


<PAGE>
                       This page intentionally left blank.
<PAGE>

   
SELIGMAN
U.S. GOVERNMENT
SECURITIES
SERIES
- --------------------------------------------------------------------------------
100 Park Avenue
New York, New York 10017

Table of Contents
                                                              Page
                                                              ----
Summary Of Series Expenses .................................    2
Financial Highlights .......................................    3
Alternative Distribution System ............................    4
Investment Objective, Policies And Risks ...................    6
Management Services ........................................    7
Purchase Of Shares .........................................    9
Telephone Transactions .....................................   14
Redemption Of Shares .......................................   15
Administration, Shareholder Services
  And Distribution Plan ....................................   18
Exchange Privilege .........................................   19
Further Information About Transactions
  In The Series ............................................   21
Dividends And Distributions ................................   21
Federal Income Taxes .......................................   22
Shareholder Information ....................................   23
Advertising The Series' Performance ........................   25
Organization And Capitalization ............................   25
    

TXUSG1 10/96
- --------------------------------------------------------------------------------
PROSPECTUS

                                    SELIGMAN
                           U.S. GOVERNMENT SECURITIES
                                     SERIES

   
January 1, 1997
    

[Logo]

<PAGE>

   
                       STATEMENT OF ADDITIONAL INFORMATION
                                 JANUARY 1, 1997

                   SELIGMAN U.S. GOVERNMENT SECURITIES SERIES
                         SELIGMAN HIGH-YIELD BOND SERIES
                                    series of
                        SELIGMAN HIGH INCOME FUND SERIES
    

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


   
         This Statement of Additional  Information  expands upon and supplements
the information  contained in the current Prospectus for each series of Seligman
High  Income Fund Series  (the  "Fund"),  dated April 22, 1996 for the  Seligman
High-Yield  Bond Series  ("High-Yield  Bond Series") and January 1, 1997 for the
Seligman  U.S.  Government   Securities  Series  ("U.S.   Government  Securities
Series").  It should be read in conjunction with the Prospectuses,  which may be
obtained  by  writing  or calling  the Fund at the above  address  or  telephone
numbers.  This  Statement of  Additional  Information,  although not in itself a
Prospectus, is incorporated by reference into each Prospectus in its entirety.

         Each Series of the Fund offers three classes of shares.  Class A shares
may be purchased  at net asset value plus an initial  sales load of up to 4.75%.
Class A shares  purchased in an amount of $1,000,000 or more are sold without an
initial sales load but are subject to a contingent  deferred sales load ("CDSL")
of 1% (of the current net asset value or the original purchase price,  whichever
is less) if such  shares  are  redeemed  within 18 months of  purchase.  Class B
shares  may be  purchased  at net asset  value  and are  subject  to a CDSL,  if
applicable,  in the  following  amount (as a percentage of the current net asset
value or the original  purchase price,  whichever is less, if redemption  occurs
within the indicated number of years of purchase of such shares: 5% (less than 1
year),  4% (1 but less  than 2 years),  3% (2 but less than 4 years),  2% (4 but
less than 5 years), 1% (5 but less than 6 years) and 0% (6 or more years). Class
B shares automatically convert to class A shares after approximately eight years
resulting in lower  ongoing  fees.  Shares  purchased  through  reinvestment  of
dividends and distributions on Class B shares also will convert automatically to
Class A shares along with the underlying shares on which they were earned. Class
D shares may be purchased at net asset value and are subject to a CDSL of 1% (of
the current net asset value or the original  purchase price,  whichever is less)
if redeemed within one year of purchase.

         Each Series' Class A, Class B and Class D shares represent an identical
legal  interest  in the  investment  portfolio  of such  Series and has the same
rights  except for certain  class  expenses  and except that Class B and Class D
shares bear higher  distribution  fees that generally will cause the Class B and
Class D shares to have a higher expense ratio and pay lower dividends than Class
A  shares.   Each  Class  has  exclusive  voting  rights  with  respect  to  its
distribution plan.  Although holders of Class A, Class B and Class D shares have
identical legal rights,  the different  expenses borne by each Class will result
in  different  net asset  values  and  dividends.  The three  classes  also have
different exchange privileges.
    

                                TABLE OF CONTENTS

   
                                               PAGE
                                               ----
Investment Objectives, Policies And Risks......  2
Investment Limitations.........................  3
Trustees And Officers..........................  4
Management And Expenses........................  9
Administration, Shareholder Services
   And Distribution Plans...................... 10
Portfolio Transactions......................... 11
Purchase And Redemption Of
   Fund Shares................................. 11
Distribution Services.......................... 14
Valuation...................................... 14
Performance ................................... 15
General Information............................ 17
Financial Statements........................... 18
Appendix ...................................... 19
    

TX1A

                                      -1-

<PAGE>

                    INVESTMENT OBJECTIVES, POLICIES AND RISKS

      The  investment  objective of each Series is a fundamental  policy and may
not be changed by the  Trustees  of the Fund  without  the vote of a majority of
such Series'  outstanding voting securities.  The objective of each Series is as
follows:

   
      The U.S.  Government  Securities  Series  seeks to  produce  high  current
income.  To  achieve  its  objective,  the  Series  invests  primarily  in  debt
obligations  issued or  guaranteed  by the U.S.  Government  or its  agencies or
instrumentalities and backed by the full faith and credit of the U.S. Government
which have  maturities  of greater  than one year at the date of purchase by the
Series.
    

      The High-Yield Bond Series seeks to produce  maximum  current  income.  To
achieve its objective, the Series invests primarily in high-yielding,  high-risk
corporate  bonds and notes,  which  generally are unrated or carry lower ratings
(Baa or lower by Moody's Investors Service,  Inc. ("Moody's") or BBB or lower by
Standard & Poor's Corporation  ("S&P")) than those assigned by S&P or Moody's to
investment grade bonds and notes. Except for temporary  defensive purposes,  the
Series  will  invest at least 80% of the value of its  assets in  high-yielding,
income-producing  corporate  bonds and  notes.  Investments  other  than in such
corporate  bonds  will be in  short-term  money  market  instruments,  including
certificates of deposit,  commercial  paper,  securities  issued,  guaranteed or
insured by the U.S. Government,  its agencies and  instrumentalities,  and other
income  producing cash items. The High-Yield Bond Series may invest up to 10% of
its total assets in debt securities of foreign issuers.  Foreign investments may
be affected  favorably or  unfavorably by changes in currency rates and exchange
control  regulations.  There may be less  information  available about a foreign
company than about a U.S.  company,  and foreign companies may not be subject to
reporting  standards and  requirements  comparable  to those  applicable to U.S.
companies.  Foreign debt  securities  and their  markets may not be as liquid as
U.S.  securities  and their markets.  Securities and some foreign  companies may
involve  greater  market risk than  securities  of U.S.  companies,  and foreign
brokerage  commissions and custody fees are generally  higher than in the United
States.  Investments  in foreign  debt  securities  may also be subject to local
economic or  political  risks,  such as  political  instability  of some foreign
governments and the possibility of nationalization of issuers.

      The following information regarding the investment policies of each Series
supplements the information contained in each Series' Prospectus.

LENDING OF SECURITIES.  Each Series of the Fund may lend portfolio securities to
certain institutional borrowers of securities and may invest the cash collateral
and obtain  additional  income or receive an agreed upon amount of interest from
the  borrower.  Loans  will  generally  be  short-term.  Loans  are  subject  to
termination  at the option of the Series or the  borrower.  Each  Series may pay
reasonable  administrative  and custodial fees in connection with a loan and may
pay a  negotiated  portion  of the  interest  earned  on the cash or  equivalent
collateral  to the  borrower or placing  broker.  Loaned  securities  may not be
returned by a borrower;  however,  a borrower must maintain with the Series from
which it has borrowed securities,  cash, or equivalent  collateral,  equal to at
least 100% of the market value of the securities borrowed.

REPURCHASE  AGREEMENTS.  Each  Series  of the Fund  may  enter  into  repurchase
agreements with commercial banks and with  broker/dealers to invest cash for the
short-term.  A  repurchase  agreement  is an  agreement  under  which the Series
acquires a money  market  instrument,  generally a U.S.  Government  obligation,
qualified for purchase by the Series,  subject to resale at an agreed upon price
and date.  Such resale price reflects an agreed upon interest rate effective for
the period of time the  instrument is held by the Series and is unrelated to the
interest rate on the  instrument.  Repurchase  agreements  usually are for short
periods, such as one week or less, but may be for longer periods. As a matter of
fundamental  policy, a Series will not enter into repurchase  agreements of more
than one week's  duration if more than 10% of its total assets would be invested
in such agreements and in "restricted" and other illiquid securities.

   
WHEN-ISSUED  SECURITIES.  Each Series may purchase  securities  on a when-issued
basis,  in which case  delivery and payment  normally  take place within 45 days
after the date of the  commitment to purchase.  The payment  obligation  and the
interest rate that will be received on the securities are each fixed at the time
the buyer  enters  into the  commitment.  Although a Series  will only  purchase
securities on a when-issued  basis with the intention of actually  acquiring the
securities,  the Series may sell these securities  before the settlement date if
it is deemed advisable.
    

      Securities  purchased on a when-issued  basis and the  securities  held in
each  Series 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

                                      -2-

<PAGE>

rates decline and  depreciation  when interest  rates rise).  Therefore,  to the
extent a Series  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  Series'  assets  will vary more than
otherwise.  Purchasing a 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 so purchased.

      A  separate  account of each of the  Series  consisting  of cash or liquid
high-grade  debt securities  equal to the amount of the when-issued  commitments
will be established with Investors Fiduciary Trust Company, the Fund's portfolio
securities custodian, and marked to market daily, with additional cash or liquid
high grade debt securities added when necessary.  When the time comes to pay for
when-issued  securities,  each Series will meet its respective  obligations from
then available cash flow, sale of securities held in the separate account,  sale
of other  securities or,  although they would not normally expect to do so, from
the  sale of the  when-issued  securities  themselves  (which  may  have a value
greater or less than the Series'  payment  obligations).  Sale of  securities to
meet such obligations carries with it a greater potential for the realization of
capital gain or loss.

      Except as described  above and under  Investment  Limitations  below,  the
foregoing  investment  policies are not fundamental and the Trustees of the Fund
may change  such  policies  without  the vote of a majority  of the  outstanding
voting securities of the Fund or any Series (as defined on page 4).

   
PORTFOLIO  TURNOVER.  Each Series'  portfolio  turnover  rate is  calculated  by
dividing the lesser of purchases or sales of portfolio  securities of the Series
for the fiscal year by the monthly average value of the portfolio  securities of
the Series owned during the fiscal year.  The portfolio  turnover  rates for the
U.S. Government  Securities Series and the High-Yield Bond Series for the fiscal
years ended 1995 and 1994 were  213.06% and  445.18%,  and 173.39% and  184.75%,
respectively.  Securities  whose  maturities or expiration  dates at the time of
acquisition  were one  year or less are  excluded  from  the  calculation.  High
portfolio  turnover involves  correspondingly  greater  transactions costs and a
possible increase in short-term capital gains or losses.
    


                             INVESTMENT LIMITATIONS

      Under each Series' fundamental policies, which cannot be changed except by
a vote of a majority of its outstanding voting securities, a Series may not:

- -  Borrow money,  except from banks for temporary or emergency purposes (but not
   for the purchase of portfolio  securities)  in an amount not to exceed 15% of
   the  value of the total  assets of the  Series.  A Series  will not  purchase
   additional portfolio securities if such Series has outstanding  borrowings in
   excess of 5% of the value of its total assets;

- -  Mortgage  or pledge  any of its  assets,  except to the extent  necessary  to
   effect borrowings permitted by the preceding paragraph and provided that this
   limitation  does not prohibit  escrow,  collateral or margin  arrangements in
   connection  with  (a)  the  writing  of  covered  call  options  by the  U.S.
   Government  Securities  Series;  (b) the  purchase of put options by the U.S.
   Government  Securities  Series  or (c) the  sale  of  interest  rate  futures
   contracts  and the purchase or sale of options on such  contracts by the U.S.
   Government Securities Series;

- -  Make "short" sales of securities,  or purchase  securities on "margin" except
   that for  purposes  of this  limitation,  initial and  variation  payments or
   deposits in  connection  with  interest  rate futures  contracts  and related
   options by the U.S. Government Securities Series will not be deemed to be the
   purchase  of  securities  on margin;  write or purchase  put or call  options
   except that the U.S.  Government  Securities  Series may write  covered  call
   options and the U.S.  Government  Securities  Series may purchase put options
   and may purchase and sell options on interest  rate futures and may engage in
   closing  transactions with respect to such options. The Series has no present
   intention  of  investing  in these  types of  securities,  and will not do so
   without the prior approval of the Fund's Board of Trustees;

- -  Purchase  securities of any issuer if immediately  thereafter more than 5% of
   total assets at market would be invested in the securities of any one issuer,
   other than the U.S. Government,  its agencies or instrumentalities;  buy more
   than  10% of the  voting  securities  of any  one  issuer,  other  than  U.S.
   Government agencies or instrumentalities;  or invest to control or manage any
   company;

- -  Invest more than 25% of the market value of its total assets in securities of
   issuers  in  any  one   industry;   for  the  purpose  of  this   limitation,
   mortgage-related securities do not constitute an industry;

                                      -3-

<PAGE>


- -  Invest  in  securities  issued  by  other  investment  companies,  except  in
   connection with a merger, consolidation, acquisition or reorganization;

- -  Purchase or  hold any real estate including limited  partnership interests in
   real property;

- -  Purchase or sell commodities and commodity  futures contracts except that the
   U.S.  Government  Securities  Series may sell interest rate futures contracts
   and may write call  options and may purchase put options with respect to such
   contracts  and may engage in closing  transactions  with  respect to all such
   transactions. The Series has no present intention of investing in these types
   of  securities,  and will not do so without the prior  approval of the Fund's
   Board of Trustees;

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

- -  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 other  company own in the  aggregate  more than 5% of
   such securities;

- -  Engage in  transactions  with its  Trustees and  officers,  or firms they are
   associated  with,  in  connection  with the  purchase or sale of  securities,
   except as broker;

- -  Underwrite the securities of other  issuers,  except that in connection  with
   the  disposition of a security a Series may be deemed to be an underwriter as
   defined in the Securities Act of 1933; or

- -  Make loans, except loans of securities of the Series and except to the extent
   the purchase of notes, bonds or other evidences of indebtedness, or the entry
   into repurchase agreements may be considered loans.

   Although not fundamental policies subject to shareholder vote, as long as the
Fund's  shares are  registered  in certain  states,  a Series may not  mortgage,
pledge or hypothecate its assets to the extent that the value of such encumbered
assets exceed 10% of the per share  offering  price of shares of the Series,  it
may not  invest in  interests  in oil,  gas,  mineral  leases  or other  mineral
exploration or development  programs and it must limit to 5% of its gross assets
at market value its combined investments in securities of companies in operation
for less than three years (excluding  securities  guaranteed by a company which,
including predecessors, has been in operation at least three continuous years).

   Under the  Investment  Company  Act of 1940 (the  "1940  Act"),  a "vote of a
majority of the  outstanding  voting  securities" of the Fund or of a particular
Series  means  the  affirmative  vote of the  lesser of (l) more than 50% of the
outstanding  shares  of the  Fund  or of such  Series  or (2) 67% or more of the
shares of the Fund or of such Series present at a shareholder's  meeting if more
than 50% of the outstanding shares of the Fund or of such Series are represented
at the meeting in person or by proxy.

                              TRUSTEES AND OFFICERS

   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.

   
WILLIAM C. MORRIS*               Trustee, Chairman of the Board, Chief Executive
 (58)                            Officer and Chairman of the Executive Committee

                                 Managing Director, Chairman and President, J. &
                                 W.  Seligman  &  Co.  Incorporated,  investment
                                 managers and advisers;  and Seligman  Advisors,
                                 Inc.,  advisers;  Chairman and Chief  Executive
                                 Officer,   the  Seligman  Group  of  Investment
                                 Companies;    Chairman,    Seligman   Financial
                                 Services,   Inc.,    broker/dealer;    Seligman
                                 Holdings,   Inc.,  holding  company;   Seligman
                                 Services,   Inc.,   broker/dealer;   and  Carbo
                                 Ceramics  Inc.,  ceramic  proppants for oil and
                                 gas  industry;  Director or  Trustee,  Seligman
                                 Data   Corp.,    shareholder   service   agent;
                                 Kerr-McGee   Corporation,   diversified  energy
                                 company;  and  Sarah  Lawrence  College;  and a

                                      -4-

<PAGE>

                                 Member  of  the  Board  of   Governors  of  the
                                 Investment   Company    Institute;    formerly,
                                 Chairman,     Seligman    Securities,     Inc.,
                                 broker/dealer   and  J.  &  W.  Seligman  Trust
                                 Company,  trust company;  and Director,  Daniel
                                 Industries,  Inc.,  manufacturer of oil and gas
                                 metering equipment.
    


BRIAN T. ZINO*                   Trustee, President and Member of  the Executive
 (43)                            Committee
   
   
                                 Director and Managing Director (formerly, Chief
                                 Administrative  and Financial  Officer), J.& W.
                                 Seligman & Co. Incorporated,investment managers
                                 and  advisers  and   Seligman  Advisors,  Inc.,
                                 advisers;   President  (with  the  exception of
                                 Seligman   Quality   Municipal  Fund,  Inc. and
                                 Seligman  Select  Municipal  Fund,  Inc. )  and
                                 Director   or  Trustee,  the   Seligman   Group
                                 Investment  Companies;  Chairman, Seligman Data
                                 Corp., shareholder  service  agent;   Director,
                                 Seligman  Financial  Services,  Inc.,   broker/
                                 dealer;   Seligman   Services,   Inc.,  broker/
                                 dealer;  and  Senior Vice  President,  Seligman
                                 Henderson  Co.,  advisers;  formerly,  Director
                                 and Secretary, Chuo Trust - JWS Advisors, Inc.,
                                 advisers; and Director,  Seligman   Securities,
                                 Inc., broker/dealer and J. & W. Seligman  Trust
                                 Company, trust company.

FRED E. BROWN*                   Trustee
 (83)
                                 Director and Consultant, J. & W. Seligman & Co.
                                 Incorporated,  investment managers and advisers
                                 and Seligman Advisors, Inc., advisers; Director
                                 or Trustee,  the Seligman  Group of  Investment
                                 Companies;  Seligman Financial Services,  Inc.,
                                 broker/dealer;    Seligman    Services    Inc.,
                                 broker/dealer;   Trudeau  Institute,  nonprofit
                                 biomedical research  organization;  Lake Placid
                                 Center for the Arts, cultural organization; and
                                 Lake  Placid  Education  Foundation,  education
                                 foundation;    formerly,   Director,   Seligman
                                 Securities,  Inc.,  broker/dealer  and J. &  W.
                                 Seligman Trust Company, trust company.

JOHN R. GALVIN  Trustee
 (67)
                                 Dean,  Fletcher  School of Law and Diplomacy at
                                 Tufts  University;  Director  or  Trustee,  the
                                 Seligman   Group   of   Investment   Companies;
                                 Chairman,   American  Council  on  Germany;   a
                                 Governor of the Center for Creative Leadership;
                                 Director, USLIFE, insurance; National Committee
                                 on  U.S.-China   Relations;   National  Defense
                                 University; the Institute for Defense Analysis;
                                 and Raytheon Co., electronics;  and Consultant,
                                 Thomson CSF, electronics; formerly, Ambassador,
                                 U.S.  State  Department;  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.
                                 Tufts University, Packard  Avenue,  Medford, MA
                                 02105.

ALICE S. ILCHMAN                 Trustee
 (61)
                                 President,  Sarah Lawrence College; Director or
                                 Trustee,   the  Seligman  Group  of  Investment
                                 Companies;     Chairman,     The    Rockefeller
                                 Foundation,    charitable    foundation;    and
                                 Director,  NYNEX,  telephone  company;  and the
                                 Committee for Economic  Development;  formerly,
                                 Trustee,  The Markle Foundation,  philanthropic
                                 organization;   and   Director,   International
                                 Research  and   Exchange  Board,   intellectual
                                 exchanges.
                                 Sarah Lawrence College, Bronxville, NY  10708
    

                                      -5-

<PAGE>


   
FRANK A. McPHERSON               Trustee
 (63)
                                 Chairman  of  the  Board  and  Chief  Executive
                                 Officer,  Kerr-McGee  Corporation,  energy  and
                                 chemicals;  Director or Trustee,  the  Seligman
                                 Group  of   Investment   Companies;   Director,
                                 Kimberly-Clark Corporation,  consumer products,
                                 Bank  of  Oklahoma  Holding  Company,  American
                                 Petroleum  Institute,  Oklahoma City Chamber of
                                 Commerce,   Baptist  Medical  Center,  Oklahoma
                                 Chapter  of the  Nature  Conservancy,  Oklahoma
                                 Medical  Research  Foundation  and  United  Way
                                 Advisory Board; Chairman,  Oklahoma City Public
                                 Schools Foundation;  and Member of the Business
                                 Roundtable and National Petroleum Council.
                                 123 Robert S.  Kerr  Avenue, Oklahoma  City, OK
                                 73102
    

JOHN E. MEROW*                   Trustee
 (66)
                                 Chairman   and  Senior   Partner,   Sullivan  &
                                 Cromwell,  law firm;  Director or Trustee,  the
                                 Seligman   Group   of   Investment   Companies;
                                 Municipal Art Society of New York; Commonwealth
                                 Aluminum   Corporation;    U.S.   Council   for
                                 International  Business;  and U. S.-New Zealand
                                 Council;    Chairman,    American    Australian
                                 Association;   Member  of  the   American   Law
                                 Institute and Council on Foreign Relations; and
                                 Member of the Board of Governors of the Foreign
                                 Policy  Association and New York Hospital.  125
                                 Broad Street, New York, NY 10004

   
BETSY S. MICHEL                  Trustee
 (54)
                                 Attorney;  Director  or  Trustee, the  Seligman
                                 Group    of    Investment  Companies;  Trustee,
                                 Geraldine  R.  Dodge   Foundation,   charitable
                                 foundation;  and  Chairman  of  the   Board  of
                                 Trustees  of   St.  George's  School  (Newport,
                                 RI);   formerly,    Director,   The    National
                                 Association of Independent Schools (Washington,
                                 DC).
                                 St. Bernard's Road, P.O. Box 449, Gladstone, NJ
                                 07934
    

JAMES C. PITNEY                  Trustee
 (69)
                                 Partner,  Pitney,   Hardin,  Kipp &  Szuch, law
                                 firm;  Director or Trustee,  the Seligman Group
                                 of  Investment  Companies  and  Public  Service
                                 Enterprise Group, public utility.
                                 Park  Avenue  at  Morris County, P.O. Box 1945,
                                 Morristown, NJ  07962-1945

   
JAMES Q. RIORDAN                 Trustee
 (69)
                                 Director,  Various  Corporations;  Director  or
                                 Trustee,   the  Seligman  Group  of  Investment
                                 Companies, The Houston Exploration Company, The
                                 Brooklyn   Museum,   The  Brooklyn   Union  Gas
                                 Company,    The    Committee    for    Economic
                                 Development,  Dow Jones & Co.,  Inc. and Public
                                 Broadcasting Service; formerly,  Co-Chairman of
                                 the  Policy  Council  of  the  Tax  Foundation;
                                 Director, Tesoro Petroleum Companies, Inc.; and
                                 Director and  President,  Bekaert  Corporation.
                                 675 Third  Avenue,  Suite  3004,  New York,  NY
                                 10017
    

RONALD T. SCHROEDER*             Trustee and Member of the Executive Committee
 (48)
                                 Director,Managing Director and Chief Investment
                                 Officer,  Institutional, J. & W. Seligman & Co.
                                 Incorporated, investment managers and advisers;
                                 and   Seligman   Advisors,   Inc.,    advisers;
                                 Director  or Trustee,  the  Seligman  Group  of
                                 Investment   Companies;   Director,    Seligman
                                 Holdings,  Inc.,  holding   company;   Seligman
                                 Financial   Services,   Inc.,    broker/dealer;
                                 Seligman   Henderson   Co.,     advisers;   and
                                 Seligman   Services,   Inc.,     broker/dealer;
                                 formerly,  President,  the  Seligman   Group of
                                 Investment Companies,  except Seligman  Quality
                                 Municipal   Fund,   Inc.  and  Seligman  Select
                                 Municipal  Fund,  Inc.;  and  Director, J. & W.
                                 Seligman Trust Company, trust company; Seligman
                                 Data   Corp.,  shareholder  service  agent; and
                                 Seligman Securities, Inc., broker/dealer.

                                      -6-

<PAGE>


   
ROBERT L. SHAFER                 Trustee
 (64)
                                 Director,  various  corporations;  Director  or
                                 Trustee,   the  Seligman  Group  of  Investment
                                 Companies   and   USLIFE   Corporation,    life
                                 insurance;  formerly,  Vice President,  Pfizer,
                                 Inc.,  pharmaceuticals.  235 East 42nd  Street,
                                 New York, NY 10017
    

JAMES N. WHITSON                 Trustee
 (61)
                                 Executive  Vice  President,   Chief   Operating
                                 Officer and Director, Sammons Enterprises,Inc.;
                                 Director or  Trustee,  the  Seligman  Group  of
                                 Investment  Companies;  Red Man Pipe and Supply
                                 Company, piping and other materials;and C-SPAN.
                                 300 Crescent Court, Suite 700, Dallas, TX 75201

   
DANIEL J. CHARLESTON             Vice President and Portfolio Manager
 (36)
                                 Vice  President,    Investment  Officer  and  a
                                 Managing  Director  of  J. & W.  Seligman & Co.
                                 Incorporated, investment managers and advisers;
                                 and Vice President and Portfolio Manager of one
                                 other   open-end  investment  company  in   the
                                 Seligman Group of Investment Companies.

LEONARD J. LOVITO                Vice President and Portfolio Manager
 (36)
                                 Vice  President,  Investment  Officer,  J. & W.
                                 Seligman & Co.Incorporated, investment managers
                                 and  advisers;  Vice  President  and  Portfolio
                                 Manager,   two   other   open-end    investment
                                 companies in  the  Seligman Group of Investment
                                 Companies.

LAWRENCE P. VOGEL                Vice President
 (40)
                                 Senior Vice President, Finance, J.& W. Seligman
                                 & Co.  Incorporated,  investment  managers  and
                                 advisers;  Seligman  Financial Services,  Inc.,
                                 broker/dealer; Seligman Advisors,Inc., advisers
                                 and Seligman Data  Corp.,  shareholder  service
                                 agent; Vice President,  the  Seligman Group  of
                                 Investment  Companies  and  Seligman  Services,
                                 Inc.,  broker/dealer; and  Treasurer,  Seligman
                                 Holdings,  Inc., holding company;  and Seligman
                                 Henderson Co., advisers; formerly, Senior  Vice
                                 President, Seligman  Securities,  Inc., broker/
                                 dealer;  and Vice  President, Finance,  J. & W.
                                 Seligman Trust Company, trust company.

FRANK J. NASTA                    Secretary
 (32)
                                 Senior Vice  President,  Law and Regulation and
                                 Corporate  Secretary,  J. & W.  Seligman  & Co.
                                 Incorporated, investment managers and advisers;
                                 and   Seligman   Advisors,    Inc.,   advisers;
                                 Secretary,  the  Seligman  Group of  Investment
                                 Companies;  Seligman Financial Services,  Inc.,
                                 broker/dealer;    Seligman    Henderson    Co.,
                                 advisers;      Seligman     Services,     Inc.,
                                 broker/dealer;   and   Seligman   Data   Corp.,
                                 shareholder service agent; formerly, Secretary,
                                 J. & W. Seligman Trust Company,  trust company;
                                 and attorney, Seward and Kissel, law firm.
    

THOMAS G. ROSE                   Treasurer
 (38)
                                 Treasurer,  the Seligman  Group  of  Investment
                                 Companies; and Seligman Data Corp., shareholder
                                 service agent;  formerly,  Treasurer,  American
                                 Investors  Advisers,  Inc.  and  the   American
                                 Investors Family of Funds.

      The  Executive  Committee of the  Trustees  acts on behalf of the Trustees
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 Trustees.

                                      -7-

<PAGE>
<TABLE>
<CAPTION>
                                                     COMPENSATION TABLE
                                                     ------------------
                                                                    PENSION OR
                                              AGGREGATE         RETIREMENT BENEFITS     TOTAL COMPENSATION
                                             COMPENSATION        ACCRUED AS PART OF        FROM FUND AND
    POSITION WITH REGISTRANT                 FROM FUND (1)         FUND EXPENSES         FUND COMPLEX (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
Ronald T. Schroeder                               N/A                  N/A                       N/A
Fred E. Brown, Trustee                            N/A                  N/A                       N/A
John R. Galvin, Trustee                         $1,618.32              N/A                  $ 41,252.75
Alice S. Ilchman, Trustee                        2,662.12              N/A                    68,000.00
Frank A. McPherson, Trustee                      1,618.32              N/A                    41,252.75
John E. Merow, Trustee                           2,590.70(d)           N/A                    66,000.00(d)
Betsy S. Michel, Trustee                         2,840.73              N/A                    67,000.00
Douglas R. Nichols, Jr., Trustee*                  972.38              N/A                    24,747.25
James C. Pitney, Trustee                         2,662.12              N/A                    68,000.00(d)
James Q. Riordan, Trustee                        2,947.80              N/A                    70,000.00
Herman J. Schmidt, Trustee*                        972.38              N/A                    24,747.25
Robert L. Schafer, Trustee                       2,947.86              N/A                    70,000.00
James N. Whitson, Trustee                        2,876.38(d)           N/A                    68,000.00(d)
- ---------------------
</TABLE>

(1) Based on  remuneration  received  by the  Trustees  of the Fund for the year
ended December 31, 1995.

(2) As defined in each  Series'  Prospectus,  the Seligman  Group of  Investment
Companies consists of seventeen investment companies.

* Retired May 18, 1995.

   
(d)  Deferred.   As  of  December  31,  1995,  the  total  amounts  of  deferred
compensation  (including interest) payable by the Fund to Messrs.  Merow, Pitney
and Whitson were $29,945, $23,316 and $7,516, respectively. Mr. Pitney no longer
defers current compensation.
    

      The Fund has a compensation  arrangement  under which outside Trustees may
elect to defer receiving their fees. Under this  arrangement,  interest would be
accrued on the deferred  balances.  The actual cost of such interest is included
in the  Trustee's  fees and expenses,  and the  accumulated  balance  thereof is
included in "Liabilities" in the Fund's financial statements.

   
      Trustees  and  officers  of the  Fund  are also  directors,  trustees  and
officers of some or all of the other investment companies in the Seligman Group.
Trustees and officers of the Fund as a group owned less than 1% of both the U.S.
Government  Securities  Series' and the High-Yield  Bond Series' Class A capital
stock as of  October 15, 1996.  As of that  date, no Trustees or officers  owned
shares of either Series' Class B or Class D capital stock.

      As of October 15, 1996,  no  person  was known to the  management  of the
Fund to be the beneficial owner of more than 5% of the outstanding shares of any
class of its capital stock except as set forth in the following table:
<TABLE>
<CAPTION>
      TITLE OF CLASS                NAME AND ADDRESS OF BENEFICIAL OWNER                SHARES OWNED      PERCENT OF CLASS
      --------------                ------------------------------------                ------------      ----------------
<S>                                 <C>                                                 <C>                       <C>
Seligman High-Yield                 Merrill Lynch Pierce Fenner & Smith                  6,565,773                14%
  Bond Series-Class A               P.O. Box 45286, Jacksonville, FL 32232-5286

Seligman High-Yield                 Merrill Lynch Pierce Fenner & Smith                 10,507,218                36%
  Bond Series-Class D               P.O. Box 45286, Jacksonville, FL 32232-5286
</TABLE>
    

                                      -8-

<PAGE>


                             MANAGEMENT AND EXPENSES

   
      Under each Series' Management  Agreement,  dated December 29, 1988 for the
U.S.  Government  Securities Series and December 29, 1988, as amended January 1,
1996, for the High-Yield Bond Series, subject to the control of the Trustees, J.
& W. Seligman & Co.  Incorporated (the "Manager")  manages the investment of the
assets  of each  Series,  including  making  purchases  and  sales of  portfolio
securities consistent with each Series' investment objectives and policies,  and
administers the business and other affairs of each Series.  The Manager provides
the Fund with such office space, administrative and other services and executive
and other personnel as are necessary for Fund  operations.  The Manager pays all
of the  compensation of Trustees of the Fund who are employees or consultants of
the  Manager and the  officers  and  employees  of the Fund.  The  Manager  also
provides  senior  management  for Seligman  Data Corp.,  the Fund's  shareholder
service agent.
    

      The Manager is entitled to receive a  management  fee from each Series for
its services to such Series,  calculated daily and payable monthly. For the U.S.
Government  Securities Series, the fee is equal to .50% of the average daily net
assets  of the  Series  on an annual  basis.  Effective  January  1,  1996,  the
management  fee for the  High-Yield  Bond Series is equal to .65% of the Series'
average  daily net  assets on the first $1 billion of net assets and .55% of the
Series'  average daily net assets in excess of $1 billion.  The management  fees
paid by each Series for each of 1995,  1994 and 1993 equaled .50% of the average
daily net assets of each Series;  or for the U.S.  Government  Securities Series
and the High-Yield Bond Series,  $301,343,  $338,362 and $296,325; and $723,340,
$329,652 and $251,812, respectively.

      The Fund pays all its  expenses  other than those  assumed by the  Manager
including  brokerage  commissions,  administration,   shareholder  services  and
distribution  fees,  if any,  fees and  expenses of  independent  attorneys  and
auditors,  taxes and governmental fees including fees and expenses of qualifying
the Fund and its shares under federal and state  securities  laws, cost of stock
certificates  and expenses of repurchase  or  redemption of shares,  expenses of
printing and distributing reports,  notices and proxy materials and prospectuses
to existing  shareholders,  expenses of  printing  and filing  reports and other
documents filed with governmental agencies,  expenses of shareholders' meetings,
expenses  of  corporate  data  processing  and  related  services,   shareholder
recordkeeping  and  shareholder  account  services,  fees and  disbursements  of
transfer   agents  and   custodians,   expenses  of  disbursing   dividends  and
distributions,  fees payable under the Administration,  Shareholder Services and
Distribution Plan described below, fees and expenses of Trustees of the Fund not
employed  by (or  serving  as a  Trustee  of)  the  Manager  or its  affiliates,
insurance premiums and extraordinary  expenses such as litigation expenses.  The
Fund's  expenses are  allocated  among the Series in a manner  determined by the
Trustees to be fair and equitable.

      The Manager has undertaken to one state securities administrator,  so long
as required, to reimburse each Series for each year in the amount by which total
expenses,  including the management fee but excluding interest, taxes, brokerage
commissions,  distribution fees and extraordinary expenses, exceed 2 1/2% of the
first  $30,000,000 of average net assets,  2% of the next $70,000,000 of average
net assets,  and 1 1/2%  thereafter.  Such  reimbursement,  if any, will be paid
monthly.

   
      Each Series'  Management  Agreement was initially approved by the Board of
Trustees on September 30, 1988 and by the shareholders at a special meeting held
on  December  16,  1988.  The  amendments  to the  Management  Agreement  of the
High-Yield  Bond Series,  to increase the fee rate payable to the Manager by the
Series,  were approved by the Board of Trustees on September 21, 1995 and by the
shareholders  at a special  meeting held on December 12,  1995.  The  Management
Agreements will continue until December 31 of each year (1) if such  continuance
is approved  in the manner  required by the 1940 Act (by a vote of a majority of
the Trustees or of the  outstanding  voting  securities  of each Series 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) if the Manager shall
not have  notified  a Series at least 60 days prior to  December  31 of any year
that it does not desire  such  continuance.  Each  Management  Agreement  may be
terminated  by the  appropriate  Series,  without  penalty,  on 60 days' written
notice  to the  Manager  and will  terminate  automatically  in the event of its
assignment.  Each Series 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 the Manager's business.
    

      The Manager 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 the Manager was  purchased by Mr.  William C.
Morris and a  simultaneous  recapitalization  of the Manager  occurred.  See the
Appendix for further history of the Manager.

                                      -9-

<PAGE>


         Officers,  directors  and  employees  of the Manager are  permitted  to
engage in personal  securities  transactions,  subject to the Manager's  Code of
Ethics (the "Ethics Code").  The Ethics Code 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 the  Manager's  Director  of  Compliance,  and  sets  forth  a  procedure  of
identifying,  for disciplinary  action, those individuals who violate the Ethics
Code. The Ethics Code  prohibits  each of the officers,  directors and employees
(including all portfolio managers) of the Manager from purchasing or selling any
security  that the  officer,  director  or employee  knows or  believes  (i) was
recommended  by the Manager for  purchase or sale by any client,  including  the
Fund,  within the preceding two weeks, (ii) has been reviewed by the Manager for
possible  purchase  or sale  within  the  preceding  two  weeks,  (iii) is being
purchased or sold by any client, (iv) is being considered by a research analyst,
(v) is being  acquired in a private  placement,  unless prior  approval has been
obtained from the Manager's  Director of  Compliance,  or (vi) is being acquired
during an initial or secondary public  offering.  The Ethics Code also imposes a
strict standard of  confidentiality  and requires portfolio managers to disclose
any interest they may have in the  securities or issuers that they recommend for
purchase by any client.

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

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

           ADMINISTRATION, SHAREHOLDER SERVICES AND DISTRIBUTION PLANS

   
      Each  Series  of the  Fund  has  adopted  an  Administration,  Shareholder
Services and  Distribution  Plan for each Class (the "Plan") under Section 12(b)
of the 1940 Act and Rule 12b-1 thereunder.

The Plan was originally approved with respect to each Series on April 8, 1986 by
the Board of Trustees of the Fund,  including a majority of the Trustees who are
not "interested persons" (as defined in the 1940 Act) of the Fund and who had no
direct or indirect  financial  interest in the  operation  of the Plan or in any
agreement related to the Plan (the "Qualified Trustees") and by the shareholders
of each  Series at a meeting of  shareholders  on April 10,  1986.  The Plan was
approved in respect of the Class D shares of both Series on July 15, 1993 by the
Board of Trustees of the Fund,  including a majority of the Qualified  Trustees,
and  became  effective  in  respect  of the  Class D shares  of both  Series  on
September  21,  1993.  The Plan was approved in respect of the Class B shares of
the  High-Yield  Bond  Series on March 21,  1996 by the Board of Trustees of the
Fund,  including a majority of the Qualified  Trustees,  and became effective in
respect of the Class B shares of the  High-Yield  Bond Series on April 22, 1996.
The Plan was  approved  in respect of the Class B shares of the U.S.  Government
Securities  Series on  September  19, 1996 by the Board of Trustees of the Fund,
including a majority of the Qualified Trustees,  and became effective in respect
of the Class B shares of the U.S.  Government  Securities  Series on  January 1,
1997.  The Plans 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 of the Fund,  cast in person at a meeting called for
the purpose of voting on such approval.  The Plan may not be amended to increase
materially  the  amounts  payable to Service  Organizations  (as defined in each
Series'  Prospectus)  with respect to a class without the approval of a majority
of the  outstanding  voting  securities of such class.  If the amount payable in
respect  of  Class  A  shares  under  the  Plans  is  proposed  to be  increased
materially, the Fund will either (i) permit holders of Class B shares to vote as
a separate  class on the  proposed  increase  or (ii)  establish  a new class of
shares  subject to the same payment under the Plans as existing  Class A shares,
in which  case the Class B shares  will  thereafter  convert  into the new class
instead of into Class A shares.  No material  amendment to the Plans may be made
except by a majority of both the Trustees and Qualified Trustees.
    

      The Plans  require  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) for each Series under the Plans.
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.

                                      -10-

<PAGE>


                             PORTFOLIO TRANSACTIONS

      No brokerage commissions were paid by the Fund during 1995, 1994 and 1993.
When two or more of the  investment  companies  in the  Seligman  Group or other
investment  advisory  clients  of the  Manager  desire  to buy or sell  the same
security at the same time, the securities purchased or sold are allocated by the
Manager 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.

                     PURCHASE AND REDEMPTION OF FUND SHARES

   
      Each  Series  offers  three  classes  of  shares.  Class A  shares  may be
purchased  at a price  equal to the next  determined  net asset value per share,
plus an initial sales load.  Class A shares purchased at net asset value without
an initial  sales load due to the size of the  purchase are subject to a CDSL if
such shares are redeemed within eighteen months of purchase.  Class B shares may
be purchased at a price equal to the next  determined net asset value without an
initial sales load, but a CDSL may be charged on  redemptions  within 6 years of
purchase.  Class  D  shares  may be  purchased  at a  price  equal  to the  next
determined  net asset value  without an initial  sales  load,  but a CDSL may be
charged  on  redemptions   within  one  year  of  purchase.   See   "Alternative
Distribution  System,"  "Purchase  Of  Shares,"  and  "Redemption  Of Shares" as
applicable, in each Series' Prospectus.
    

SPECIMEN PRICE MAKE-UP

   
      Under  the  current  distribution  arrangements  between  the Fund and the
Distributor,  Class A shares are sold at a maximum sales load of 4.75% and Class
B and Class D shares are sold at net asset  value.* Using the net asset value at
June 30, 1996 for each class of the Series,  the maximum  offering price of each
Series' shares is as follows:
    

                        U.S. GOVERNMENT SECURITIES SERIES

     CLASS A

   
     Net asset value per share...........................................  $6.67
                                                                           -----

     Maximum sales load (4.75% of offering price).......................    0.33
                                                                           -----

     Maximum offering price per share...................................   $7.00
                                                                           =====
    

     CLASS D

   
     Net asset value and maximum offering price per share*.............    $6.68
                                                                           =====
    

                             HIGH-YIELD BOND SERIES

     CLASS A

   
     Net asset value per share.........................................    $7.05
                                                                           -----

     Maximum sales load (4.75% of offering price)......................     0.35
                                                                           -----

     Maximum offering price per share..................................    $7.40
                                                                           =====
    

     CLASS B AND CLASS D

   
     Net asset value and maximum offering price per share*.............    $7.05
                                                                           =====
- ----------
*    Class B shares are  subject to a CDSL  declining  from 5% in the first year
     after purchase to 0% after six years.  Class D shares are subject to a CDSL
     of 1% on  redemptions  within  one year of  purchase.  See  "Redemption  Of
     Shares" in each Series' Prospectus.
    

                                      -11-

<PAGE>


   
CLASS A SHARES - REDUCED INITIAL SALES LOADS

REDUCTIONS  AVAILABLE.  Shares of any Seligman  Mutual Fund sold with an initial
sales  load  in a  continuous  offering  will  be  eligible  for  the  following
reductions:

     VOLUME DISCOUNTS are provided if the total amount being invested in Class A
shares of a Series or in any  combination of shares of the other mutual funds in
the Seligman  Group which are sold with an initial  sales load,  reaches  levels
indicated in the sales load schedule set forth in each Series' Prospectus.

     THE RIGHT OF  ACCUMULATION  allows an investor to combine the amount  being
invested in Class A shares of the other mutual funds in the Seligman  Group sold
with an  initial  sales  load with the total net asset  value of shares of those
Seligman  Mutual Funds  already  owned that were sold with an initial sales load
and the total net asset value of shares of Seligman Cash  Management  Fund which
were  acquired  through  an  exchange  of shares of another  mutual  fund in the
Seligman  Group on which there was an initial sales load at the time of purchase
to determine reduced sales loads in accordance with the schedule in each Series'
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
mutual fund in the Seligman Group on which there is an initial sales load at the
time of purchase,  will be taken into account in orders placed through a dealer,
however,  only if Seligman Financial  Services,  Inc. ("SFSI") is notified by an
investor  or a  dealer  of the  amount  owned  by the  investor  at the time the
purchase is made and is furnished sufficient information to permit confirmation.

     A LETTER  OF INTENT  allows an  investor  to  purchase  Class A shares of a
Series'  shares  over a  13-month  period  at  reduced  initial  sales  loads in
accordance  with the  schedule in each  Series'  Prospectus,  based on the total
amount of Class A shares of the  Series  that the  letter  states  the  investor
intends to purchase plus the total net asset value of shares that were sold with
an initial  sales load of the other mutual funds in the Seligman  Group  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 mutual fund in the
Seligman Group on which there was an initial sales load at the time of purchase.
Reduced  sales loads 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.  For
more  information  concerning the terms of the letter of intent,  see "Terms and
Conditions -- Letter of Intent" accompanying the Account Application.

     Class A shares  purchased  without an initial sales load in accordance with
the sales load  schedule  in each  Series'  Prospectus,  or pursuant to a Volume
Discount,  Right of Accumulation or Letter of Intent are subject to a CDSL of 1%
on redemptions of such shares within eighteen months of purchase.

PERSONS  ENTITLED  TO  REDUCTIONS.  Reductions  in initial  sales loads apply to
purchases  of Class A shares  of a Series  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,  tax-exempt  organizations  under Section 501
(c)(3) or (13), and  non-qualified  employee  benefit plans that satisfy uniform
criteria are considered "single persons" for this purpose.  The uniform criteria
are as follows:
    

1. Employees  must authorize the employer,  if requested by the Fund, to receive
in bulk  and to  distribute  to each  participant  on a  timely  basis  the Fund
prospectuses, 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  loads in each  Series'
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 (i)  $500,000  invested  in the  Seligman  Group of
Mutual Funds or (ii) 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
    

                                      -12-

<PAGE>


   
shareholder  service  agent.  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 investment
dealers or SFSI.  The term  "eligible  employee  benefit plan" means any plan or
arrangement,  whether or not tax  qualified,  which provides for the purchase of
Fund shares.

PAYMENT IN SECURITIES.  In addition to cash,  the Fund may accept  securities in
payment for shares of a Series sold at the applicable public offering price (net
asset value plus any applicable sales load) although the Fund does not presently
intend to accept  securities in payment for Series shares.  Generally,  the Fund
will only  consider  accepting  securities  (l) to  increase  its  holdings in a
portfolio  security  of a  Series,  or (2) if the  Manager  determines  that the
offered  securities  are a suitable  investment for a Series and in a sufficient
amount for efficient management. Although no minimum has been established, it is
expected  that the Fund  would not accept  securities  with a value of less than
$100,000  per issue in payment  for  shares.  The Fund may reject in whole or in
part offers to pay for shares of a Series with  securities,  may require partial
payment  in cash for  applicable  sales  loads,  and may  discontinue  accepting
securities as payment for shares of the Series at any time without  notice.  The
Fund will not accept  restricted  securities in payment for Series  shares.  The
Fund will value accepted securities in the manner provided for valuing portfolio
securities of the Fund. Any securities  accepted by the Fund in payment for Fund
shares  will have an active and  substantial  market  and have a value  which is
readily  ascertainable  (See  "Valuation").  In accordance with Texas securities
regulations,  should the Fund accept  securities  in payment  for  shares,  such
transactions would be limited to a bona fide  reorganization,  statutory merger,
or to other  acquisitions  of portfolio  securities  (except for municipal  debt
securities  issued  by  state  political   subdivisions  or  their  agencies  or
instrumentalities)  which meet the  investment  objectives  and  policies of the
investment  company;  are acquired for investment and not for resale; are liquid
securities which are not restricted as to transfer either by law or liquidity of
market;  and have a value which is readily  ascertainable  (and not  established
only by evaluation  procedures)  as evidenced by a listing on the American Stock
Exchange, the New York Stock Exchange ("NYSE") or NASDAQ.

FURTHER TYPES OF REDUCTIONS. Class A shares of each Series may be issued without
a sales load in connection with the acquisition of cash and securities  owned by
other  investment   companies  and  personal  holding   companies  to  financial
institution trust  departments,  to registered  investment  advisers  exercising
discretionary  investment authority with respect to the purchase of Fund shares,
or  pursuant  to   sponsored   arrangements   with   organizations   which  make
recommendations  to, or permit group solicitation of, its employees,  members or
participants  in connection with the purchase of shares of the Fund, to separate
accounts  established  and  maintained by an insurance  company which are exempt
from  registration  under  Section  3(c)(11)  of the  1940  Act,  to  registered
representatives  and  employees  (and their  spouses and minor  children) of any
dealer that has a sales  agreement  with SFSI, to  shareholders  of mutual funds
with investment objectives and policies similar to a Series' who purchase shares
with redemption  proceeds of such funds and to certain unit investment trusts as
described in each Series' Prospectus.

     Class A shares of each  Series  also may be issued  without a sales load to
present and retired directors,  trustees,  officers, employees (and their family
members,  as  defined  in each  Series'  Prospectus)  of the  Funds,  the  other
investment  companies in the  Seligman  Group,  the Manager and other  companies
affiliated  with the  Manager.  Such sales may also be made to employee  benefit
plans  and  thrift  plans  for  such  persons  and to any  investment  advisory,
custodial,  trust or other fiduciary account managed or advised by the Manger 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.

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

                                      -13-

<PAGE>


                              DISTRIBUTION SERVICES

SFSI, an affiliate of the Manager,  acts as a general  distributor of the shares
of the Fund and of the other mutual funds in the  Seligman  Group.  The Fund and
SFSI are parties to a Distributing  Agreement  dated January 1, 1993. As general
distributor of the Fund's shares of beneficial interest, SFSI allows commissions
to dealers as indicated in each Series' Prospectus. SFSI receives the balance of
sales loads and any CDSL, if applicable,  paid by investors. The following table
sets  forth the  concessions  received  by SFSI,  dealer  commissions,  and CDSL
retained for each Series for 1995, 1994 and 1993.

<TABLE>
<CAPTION>

      SERIES                SFSI CONCESSIONS                     DEALER COMMISSIONS                     CDSL RETAINED
      ------                ----------------                     ------------------                     -------------

                      1995       1994       1993            1995          1994        1993            1995       1994     1993*
                      ----       ----       ----            ----          ----        ----            ----       ----     -----
<S>                  <C>       <C>       <C>            <C>            <C>         <C>            <C>         <C>          <C>
U.S. Government
Securities Series   $ 11,889   $ 8,580   $12,563        $  87,970      $ 61,645    $ 91,712       $ 2,634     $ 8,280      --

High-Yield
Bond Series          459,779    45,213    67,466         3,554,416      353,427     519,151        33,929       8,610      --
</TABLE>
- ---------------------
*   For the period 9/21/93 to 12/31/93.
    No  Class B shares  were  outstanding  throughout  the 3 year  period  ended
    December 31, 1995.

    Effective April 1, 1995,  Seligman Services,  Inc. ("SSI"),  an affiliate of
the Manager, became eligible to receive commissions from certain sales of Series
shares,  as well as distribution  and service fees pursuant to the Plan. For the
period ended  December 31, 1995, SSI received  commissions  from sales of Series
shares and distribution and service fees pursuant to the Plan as follows:

                                                               DISTRIBUTION AND
                                      COMMISSIONS                SERVICE FEES
                                      -----------                ------------
         U.S. Government
         Securities Series            $ 8,380                        $ 2,952

         High-Yield
         Bond Series                    7,087                         19,702

                                    VALUATION

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

    Portfolio  securities,  including open short positions and options  written,
are  valued at the last sale  price on the  securities  exchange  or  securities
market on which such securities  primarily are traded.  Securities not listed on
an  exchange  or  securities  market,  or  securities  in  which  there  were no
transactions,  are valued at the average of the most recent bid and asked price,
except in the case of open short  positions  where the asked price is available.
Any  securities for which recent market  quotations  are not readily  available,
including  restricted  securities,  are  valued at fair value as  determined  in
accordance with procedures approved by the Fund's Trustees. This value generally
is  determined as the amount which a Series could  reasonably  expect to receive
from an orderly  disposition  of these  securities  over a reasonable  period of
time. Short-term obligations with less than sixty days remaining to maturity are
generally valued at amortized cost. Short-term  obligations with more than sixty

                                      -14-

<PAGE>


days  remaining  to maturity  will be valued at current  market  value until the
sixtieth  day prior to maturity,  and will then be valued on an  amortized  cost
basis  based on the value on such date  unless  the Board  determines  that this
amortized cost value does not represent fair market value.  Premiums received on
the sale of call options  will be included in the net asset  value,  and current
market value of the options sold by a Series will be  subtracted  from net asset
value.

                                   PERFORMANCE

   
    The  annualized  yield for the 30-day period ended December 31, 1995 for the
Class A shares of the U.S. Government  Securities Series and the High-Yield Bond
Series was 5.09% and 8.99%,  respectively.  The annualized yield was computed by
dividing each Series' net  investment  income per share earned during the 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  December  31,
1995,  which  was the last day of this  period.  The  average  number of Class A
shares of the U.S.  Government  Securities Series and the High-Yield Bond Series
was 7,762,497 and 25,045,807,  respectively,  which was the average daily number
of shares  outstanding  during the 30-day  period that were  eligible to receive
dividends.  The  annualized  yield for the 30-day period ended December 31, 1995
for the  Class  D  shares  of the  U.S.  Government  Securities  Series  and the
High-Yield Bond Series was 4.50% and 8.66%,  respectively.  The annualized yield
was  computed by dividing  each Series' net  investment  income per share earned
during the 30-day period by the maximum  offering price per share (i.e., the net
asset value) on December 31,  1995,  which was the last day of this period.  The
average number of Class D shares of the U.S.  Government  Securities  Series and
the High-Yield Bond Series was 1,122,691 and 12,328,074, respectively, 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,  as described in each
Series' Prospectus.

    The  average  annual  total  returns  for the  Class A  shares  of the  U.S.
Government  Securities  Series and the High-Yield  Bond Series for the one-year,
five-year and ten-year periods ended on December 31, 1995 were 12.58%, 7.01% and
7.09%; and 14.92%, 16.73% and 10.73%, respectively.  These returns were computed
by  subtracting  the maximum  sales load of 4.75% of public  offering  price and
assuming  that all of the  dividends  and  distributions  by the Series over the
relevant  time period were  reinvested.  It was then  assumed that at the end of
each period, the entire amount was redeemed. The average annual total return was
then  calculated by calculating the annual rate required for the initial payment
to grow to the amount which would have been received upon redemption  (i.e., the
average annual compound rate of return). The total return for the Class D shares
of the U.S. Government  Securities Series and the High-Yield Bond Series for the
one-year  period and since inception  through  December 31, 1995 were 16.10% and
4.47%; and 18.67% and 10.19%, respectively. These amounts were computed assuming
that all of the dividends and distributions paid by each Series' Class D shares,
if any, were reinvested over the relevant time period.  It was then assumed that
at the end of each period,  the entire amount was redeemed,  subtracting  the 1%
CDSL, if applicable.  Performance information is not provided for Class B shares
because no Class B shares were outstanding during the quoted periods.
    

    Table A below  illustrates  the total return (income and capital) on Class A
shares of each Series of the Fund with dividends invested and gain distributions
taken in shares. It shows that a $1,000 investment in Class A shares of the U.S.
Government Securities Series,  assuming payment of the 4.75% sales load, made on
January 1, 1986 had a value of $1,983 on  December  31,  1995,  resulting  in an
aggregate total return of 98.33%;  and a $1,000  investment in Class A shares of
the High-Yield  Bond Series,  assuming  payment of the 4.75% sales load, made on
September  21,  1993  (commencement  of  operations)  had a value of  $2,772  on
December 31, 1995,  resulting in an aggregate  total return of 177.17%.  Table B
illustrates  the total return (income and capital) on Class D shares of the U.S.
Government  Securities  Series and the  High-Yield  Bond Series  with  dividends
invested and gain distributions taken in shares.

                                      -15-

<PAGE>

<TABLE>
<CAPTION>

                                              TABLE A - CLASS A SHARES
<S>                    <C>                    <C>                 <C>           <C>                  <C>

                                                VALUE OF
PERIOD/YEAR                 VALUE OF          CAPITAL GAIN        VALUE OF                          TOTAL
    ENDED              INITIAL INVESTMENT(2)  DISTRIBUTIONS       DIVIDENDS     TOTAL VALUE (2)     RETURN (3)
- --------------         ---------------------  -------------       ---------     ---------------     ----------
U.S. Government
SECURITIES SERIES
- -----------------
12/31/86                        $956               $68              $  82            $1,106
12/31/87                         836                83                156             1,075
12/31/88                         829                82                248             1,159
12/31/89                         826                82                358             1,266
12/31/90                         809                80                458             1,347
12/31/91                         857                85                594             1,536
12/31/92                         844                83                698             1,625
12/31/93                         843                83                820             1,746
12/31/94                         759                76                844             1,679
12/31/95                         839                83              1,061             1,983           98.33%

High-Yield
BOND SERIES
- -----------
12/31/86                        $982               $ 0             $  120            $1,102
12/31/87                         887                19                230             1,136
12/31/88                         881                19                365             1,265
12/31/89                         803                17                494             1,314
12/31/90                         654                14                550             1,218
12/31/91                         748                16                828             1,592
12/31/92                         805                17              1,089             1,911
12/31/93                         871                18              1,389             2,278
12/31/94                         797                17              1,482             2,296
12/31/95                         874                18              1,880             2,772          177.17%

                                              TABLE B - CLASS D SHARES

                                                VALUE OF
PERIOD/YEAR                 VALUE OF          CAPITAL GAIN        VALUE OF                          TOTAL
   ENDED               INITIAL INVESTMENT(2)  DISTRIBUTIONS       DIVIDENDS     TOTAL VALUE (2)     RETURN (3)
- -------------          ---------------------  -------------       ---------     ---------------     ----------
U.S. Government
SECURITIES SERIES
- -----------------
12/31/93(1)                    $ 982              $ --               $ 12            $  994
12/31/94                         884                                   59               943
12/31/95                         977                --                128             1,105          (10.47)%

High-Yield
BOND SERIES
- -----------
12/31/93(1)                  $ 1,030              $ --               $ 15            $1,045
12/31/94                         942                --                100             1,042
12/31/95                       1,033                --                214             1,247           24.73%
</TABLE>

1  From commencement of offering of Class D shares on September 21, 1993.

2  The "Value of  Initial  Investment"  as of the date  indicated  reflects  the
   effect of the maximum sales load, 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" reflects the effect of the CDSL, if applicable,  assumes investment of
   all dividends and capital gain  distributions and reflects changes in the net
   asset value.

                                      -16-

<PAGE>


3  "Total  Return" for each  Series is  calculated  by  assuming a  hypothetical
   initial  investment  of  $1,000 at the  beginning  of the  period  specified,
   subtracting the maximum sales load on Class A shares; 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;  subtracting  the CDSL on Class D
   shares, if applicable;  and finally,  by dividing the difference  between the
   amount of the hypothetical  initial investment at the beginning of the period
   and  its  total  value  at the  end  of  the  period  by  the  amount  of the
   hypothetical initial investment.

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

   Each of the  Series  may also  include  its  aggregate  total  return  over a
specified  period in  advertisements  or in information  furnished to present or
prospective shareholders.

                               GENERAL INFORMATION

INFORMATION ABOUT BUSINESS TRUSTS. As indicated in each Series' Prospectus,  the
Fund is  organized  as a business  trust under the laws of the  Commonwealth  of
Massachusetts.   Under  the  Declaration  of  Trust,  the  Fund's  Trustees  are
authorized to classify or reclassify and issue any shares of beneficial interest
of the  Fund  into  any  number  of  other  Series  without  further  action  by
shareholders. The 1940 Act requires that where more than one Series exists, each
Series must be preferred over all other Series in respect of assets specifically
allocated to such Series.

   
   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  contract  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 to the extent and as
provided in the  Declaration of Trust,  (d) with respect to any amendment of the
Declaration of Trust (other than  amendments  establishing  and  designating new
Series, abolishing Series when there are no units thereof outstanding,  changing
the name of the Fund or the name of any Series,  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 of 1986, as amended,  or applicable  regulations  for the
Fund's obtaining the most favorable treatment  thereunder available to regulated
investment  companies),  which amendments  require approval by a majority of the
shares  entitled  to  vote,  (e) to the same  extent  as the  stockholders  of a
Massachusetts  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  Securities  and  Exchange  Commission  (the
"Commission")  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 ten percent 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 per centum 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 Trustees 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

                                      -17-

<PAGE>

   
tender the Trustees shall mail to such  applicants and file with the Commission,
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  Commission  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 Commission  shall enter an
order refusing to sustain any of such  objections,  or if, after the entry of an
order  sustaining one or more of such  objections,  the  Commission  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.

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

   The  shareholders  of a  Massachusetts  business  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 a Series'
assets  for any  shareholder  held  personally  liable for  obligations  of such
Series.

CUSTODIAN. Investors Fiduciary Trust Company, 127 West 10th Street, Kansas City,
Missouri 64105,  serves as custodian for the Fund. It also maintains,  under the
general  supervision of the Manager,  the accounting  records and determines the
net asset values 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, New
York 10281.

                              FINANCIAL STATEMENTS

   
   The Annual Report to  shareholders  for the year ended  December 31, 1995 and
the Mid-Year Report for the six months ended June 30, 1996, are  incorporated by
reference into this Statement of Additional  Information.  The Annual Report and
Mid-Year  Report  contain  schedules  of the  investments  of each of the Fund's
Series as of  December  31,  1995 and June 30,  1996,  respectively,  as well as
certain other  financial  information as of the applicable  date.  These Reports
will be  furnished,  without  charge,  to investors  who request  copies of this
Statement of Additional Information.
    

                                      -18-

<PAGE>


                                    APPENDIX

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

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

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

THE SELIGMAN COMPLEX:

 .... Prior to 1900

*     Helps finance America's fledgling railroads through underwritings.
*     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.
*     Becomes a prominent  underwriter  of corporate  securities,  including New
      York Mutual Gas Light Company, later part of Consolidated Edison.
*     Provides financial assistance to Mary Todd Lincoln and urges the Senate to
      award her a pension.
*     Is  appointed  U.S.  Navy fiscal  agent by President Grant.
*     Becomes a leader in raising capital for  America's  industrial  and  urban
      development.

 ...1900-1910

*     Helps Congress finance the building of the Panama Canal.

 ...1910s

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

 ...1920s

*     Participates  in  hundreds  of  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.
*     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

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

                                      -19-

<PAGE>


 ...1940s

*     Helps shape the Investment Company Act of 1940.
*     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.
*     Assumes  management  of  National  Investors  Corporation,  today Seligman
      Growth Fund, Inc. 
*     Establishes Whitehall Fund, Inc., today Seligman Income Fund, Inc.

 ...1950-1989

*     Develops new open-end investment  companies.  Today,  manages more than 40
      mutual fund portfolios.
*     Helps  pioneer  state-specific,  tax-exempt  municipal  bond funds,  today
      managing a national and 18 state-specific municipal funds.
*     Establishes  Seligman  Portfolios,  Inc.,  an investment  vehicle  offered
      through variable annuity products.

 ...1990s

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


                                      -20-
    
<PAGE>
   
      The Registrant's  Annual Report to  Shareholders,  dated December 31, 1995
and  Mid-Year  Report,   dated  June  30,  1996,  are  incorporated   into  this
Registration  Statement by reference to Registrant's  Form N-30D filings,  filed
with the  Securities  and  Exchange  Commission  on March 8, 1996 and August 23,
1996, respectively.
    
<PAGE>
                                                                File No. 2-93076
                                                                        811-4103


PART C.  OTHER INFORMATION

ITEM 24.  FINANCIAL STATEMENTS AND EXHIBITS
           (a)     Financial Statements and Schedules:

   
           Part A- Financial  Highlights  for  the  Class A  shares of  the U.S.
                   Government  Securities  Series of the  Registrant for the ten
                   years ended  December  31, 1995 and for the six months  ended
                   June  30,  1996;  and for  the  Class D  shares  of the  U.S.
                   Government Securities Series of the Registrant for the period
                   September 21, 1993 (commencement of offering) to December 31,
                   1995 and for the six months ended June 30, 1996.
    

           Part B- Financial  Statements  for  each  Series  are included in the
                   Fund's Annual Report to Shareholders, dated December 31, 1995
                   and the Fund's Mid-Year Report dated June 30, 1996, which are
                   incorporated   by  reference  in  the  Fund's   Statement  of
                   Additional  Information.   These  Financial  Statements  are:
                   Portfolios of  Investments  as of December 31, 1995 and as of
                   June 30, 1996;  Statements  of Assets and  Liabilities  as of
                   December  31,  1995 and as of June 30,  1996;  Statements  of
                   Operations  for the year ended  December 31, 1995 and for the
                   six months ended June 30, 1996;  Statements of Changes in Net
                   Assets for the years ended December 31, 1995 and 1994 and for
                   the six  months  ended  June 30,  1996;  Notes  to  Financial
                   Statements;  Financial  Highlights  for the five years  ended
                   December  31, 1995 and for the six months ended June 30, 1996
                   for each  Series'  Class A shares;  for the period  April 22,
                   1996  (commencement  of  offering)  to June 30,  1996 for the
                   Seligman  High-Yield Bond Series' Class B shares; and for the
                   period  September  21, 1993  (commencement  of  offering)  to
                   December  31, 1995 and for the six months ended June 30, 1996
                   for  each  Series'  Class D  shares;  Report  of  Independent
                   Auditors.

   
           (b)     Exhibits:  All  Exhibits  have been  previously  filed except
                   Exhibits  marked with an asterisk (*) which are  incorporated
                   herein  or  double  asterisk  (**)  which  will be  filed  by
                   amendment.

(1)        Form of Amended and Restated Declaration of Trust.**

(2)        Form of Restatement of Bylaws.**
    

(3)        N/A

(4a)       Specimen  Stock  Certificate  for  Class A Shares.  (Incorporated  by
           Reference  to  Post-Effective  Amendment  No.  18 filed on April  29,
           1994.)

(4b)       Specimen  Stock  Certificate  for  Class B Shares.  (Incorporated  by
           reference to Form SE filed on April 16, 1996).

(4c)       Specimen  Stock  Certificate  for  Class D Shares.  (Incorporated  by
           Reference to  Post-Effective  Amendment No. 17 filed on September 21,
           1993.)

   
(5a)       Copy of Management  Agreement between Seligman High-Yield Bond Series
           of  the  Registrant  and  J.  &  W.  Seligman  &  Co.   Incorporated.
           (Incorporated by Reference to  Post-Effective  Amendment No. 20 filed
           April 19, 1996.)
    

(5b)       Copy of  Management  Agreement  between  U.S.  Government  Securities
           Series of the  Registrant  and J & W.  Seligman  & Co.  Incorporated.
           (Incorporated by Reference to  Post-Effective  Amendment No. 19 filed
           on May 1, 1995.)

(6a)       Copy  of  the  new  Distributing  Agreement  between  Registrant  and
           Seligman Marketing, Inc. (Incorporated by Reference to Post-Effective
           Amendment No. 15 filed on April 30, 1993.)

   
(6b)       Copy of amended Sales Agreement between Seligman Financial  Services,
           Inc.  and  Dealers.  (Incorporated  by  Reference  to  Post-Effective
           Amendment No. 20 filed April 19, 1996.)
    

(7a)       Amendments to the Amended  Retirement Income Plan of J. & W. Seligman
           &  Co.   Incorporated  and  Trust.   (Incorporated  by  Reference  to
           Post-Effective Amendment No. 18 filed on April 29, 1994.)


<PAGE>



PART C.  OTHER INFORMATION (continued)

(7b)       Amendments  to the  Amended  Employees'  Thrift  Plan of  Union  Data
           Service  Center,  Inc.  and  Trust.  (Incorporated  by  Reference  to
           Post-Effective Amendment No. 18 filed on April 29, 1994.)

(8)        Copy  of  Custodian   Agreement  between   Registrant  and  Investors
           Fiduciary Trust Company. (Incorporated by Reference to Post-Effective
           Amendment No. 13 filed on April 30, 1991.)

   
(9)        N/A
    

(10)       Opinion  and  Consent  of  Counsel.  (Incorporated  by  Reference  to
           Pre-Effective Amendment No. 2 filed on February 14, 1985.)

(11)       Report and Consent of Independent Auditors.**

(12)       N/A

   
(13a)      Purchase  Agreement for Initial Capital between  Registrant & J. & W.
           Seligman  & Co.  Incorporated  with  respect to Class B shares of the
           U.S. Government Securities Series.**

(13b)      Purchase Agreement for Initial Capital between Registrant and J. & W.
           Seligman  & Co.  Incorporated  with  respect to Class B shares of the
           Seligman  High-Yield  Bond  Series.  (Incorporated  by  Reference  to
           Post-Effective Amendment No. 20 filed on April 19, 1996.)

(13c)      Purchase Agreement for Initial Capital between Registrant and J. & W.
           Seligman & Co.  Incorporated  with  respect to  Registrants'  Class D
           shares. (Incorporated by Reference to Post-Effective Amendment No. 17
           filed on September 21, 1993.)
    

(14)       Copy of  Amended  Individual  Retirement  Account  Trust and  Related
           Documents. (Incorporated by Reference to Post-Effective Amendment No.
           14 filed on April 30, 1992.)

(14a)      Copy of Amended  Comprehensive  Retirement  Plans for Money  Purchase
           and/or Prototype  Profit Sharing Plan.  (Incorporated by Reference to
           Seligman  New  Jersey  Tax-Exempt  Fund,  Inc.,  File  No.  33-13401,
           Pre-Effective Amendment No. 1 filed on January 11, 1988.)

(14b)      Copy of Amended Basic  Business  Retirement  Plans for Money Purchase
           and/or Profit Sharing Plans.  (Incorporated  by Reference to Seligman
           New Jersey  Tax-Exempt Fund,  Inc., File No. 33-13401,  Pre-Effective
           Amendment No. 1 filed on January 11, 1988.)

(14c)      Copy of Amended 403(b)(7)  Custodial  Account Plan.  (Incorporated by
           Reference  to Seligman New Jersey  Tax-Exempt  Fund,  Inc.,  File No.
           33-13401, Pre-Effective Amendment No. 1 filed on January 11, 1988.)

(14d)      Copy of Amended Simplified Employee Pension Plan (SEP). (Incorporated
           by Reference to  Post-Effective  Amendment  No. 14 filed on April 30,
           1992.)

(14e)      Copy of the  amended  J. & W.  Seligman & Co.  Incorporated  (SARSEP)
           Salary   Reduction   and   Other   Elective    Simplified    Employee
           Pension-Individual  Retirement Accounts Contribution Agreement (Under
           Section  408(k)  of the  Internal  Revenue  Code).  (Incorporated  by
           Reference  to  Post-Effective  Amendment  No.  14 filed on April  30,
           1992.)

   
(15)       Amended  Administration,  Shareholder Services and Distribution Plans
           for Registrant's Series and form of Agreement of Registrant.**
    

(16)       Schedule of Computation of Performance  Data provided in Registration
           Statement  in  response to Item 22.  (Incorporated  by  Reference  to
           Post-Effective Amendment No. 11 filed on April 30, 1990.)

(17)       Financial Data Schedule  meeting the  requirements  of Rule 483 under
           the Securities Act of 1933.*

   
(18)       Copy of Multiclass  Plan entered into by Registrant  pursuant to Rule
           18f-3 under the Investment Company Act of 1940.**
    
<PAGE>

PART C.    OTHER INFORMATION (continued)

ITEM 25.   PERSONS CONTROLLED BY OR UNDER COMMON CONTROL WITH REGISTRANT - None.

ITEM 26.   NUMBER OF HOLDERS OF SECURITIES

   
                  (1)                                            (2)
                                                     Number of Record
            TITLE OF CLASS                        HOLDERS AS OF OCTOBER 15, 1996
            --------------                        ------------------------------

            High-Yield Bond Series
              Class A Common Stock                            12,918
              Class B Common Stock                             2,361
              Class D Common Stock                             6,400
                                                             
            U.S. Government Securities Series                  
              Class A Common Stock                             2,682
              Class D Common Stock                               410
    
                                                           
ITEM 27.   INDEMNIFICATION - Incorporated by reference to Registrant's 
           Post-Effective Amendment No. 13 filed on May 1, 1991.

   
ITEM 28.   BUSINESS AND OTHER CONNECTIONS OF INVESTMENT ADVISER - J. & W.
           Seligman & Co. Incorporated,  a Delaware corporation ("Manager"),  is
           the  Registrant's  investment  manager.  The  Manager  also serves as
           investment manager to sixteen other associated  investment companies.
           They are Seligman  Capital Fund, Inc.  Seligman Cash Management Fund,
           Inc., Seligman Common Stock Fund, Inc.,  Seligman  Communications and
           Information Fund, Inc., Seligman Frontier Fund, Inc., Seligman Growth
           Fund, Inc.,  Seligman  Henderson Global Fund Series,  Inc.,  Seligman
           Income Fund, Inc., Seligman New Jersey Municipal Fund, Inc., Seligman
           Pennsylvania  Municipal  Fund  Series,  Seligman  Portfolios,   Inc.,
           Seligman  Quality  Municipal Fund,  Inc.,  Seligman Select  Municipal
           Fund, Inc., Seligman Municipal Fund Series,  Inc., Seligman Municipal
           Series Trust and Tri-Continental Corporation.

           The  Manager  has  an  investment  advisory  service  division  which
           provides investment management or advice to private clients. The list
           required by this Item 28 of officers  and  directors  of the Manager,
           together  with  information  as to any  other  business,  profession,
           vocation or  employment of a  substantial  nature  engaged in by such
           officers and directors  during the past two years, is incorporated by
           reference  to  Schedules  A and D of Form ADV,  filed by the  Manager
           pursuant  to the  Investment  Advisers  Act of  1940  (SEC  File  No.
           801-5798), filed on August 7, 1996.
    

ITEM 29.   PRINCIPAL UNDERWRITERS

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

   
           Seligman Capital Fund, Inc.
           Seligman Cash Management Fund, Inc.
           Seligman Common Stock Fund, Inc.
           Seligman Communications and Information Fund, Inc.
           Seligman Frontier Fund, Inc.
           Seligman Henderson Global Fund Series, Inc.
           Seligman Growth Fund, Inc.
           Seligman Income Fund, Inc.
           Seligman New Jersey Municipal Fund, Inc.
           Seligman Pennsylvania Municipal Fund Series
           Seligman Portfolios, Inc.
           Seligman Municipal Fund Series, Inc.
           Seligman Municipal Series Trust
    


<PAGE>



PART C.   OTHER INFORMATION (continued)

         (b) Name of each director, officer or partner of Registrant's principal
          underwriter named in the answer to Item 21:

<TABLE>
<CAPTION>
   
                                               SELIGMAN FINANCIAL SERVICES, INC.
                                                    AS OF SEPTEMBER 30, 1996
                 (1)                                         (2)                                             (3)
<S>      <C>                                   <C>                                                 <C>
         Name and Principal                         Positions and Offices                           Positions and Offices
          BUSINESS ADDRESS                            WITH UNDERWRITER                                 WITH REGISTRANT
         WILLIAM C. MORRIS*                            Director                                    Chairman of the Board and
                                                                                                   Chief Executive Officer
         BRIAN T. ZINO*                                Director                                    President and Trustee
         RONALD T. SCHROEDER*                          Director                                    Trustee
         FRED E. BROWN*                                Director                                    Trustee
         WILLIAM H. HAZEN*                             Director                                    None
         THOMAS G. MOLES*                              Director                                    None
         DAVID F. STEIN*                               Director                                    None
         STEPHEN J. HODGDON*                           President                                   None
         LAWRENCE P. VOGEL*                            Senior Vice President, Finance              Vice President
         ED LYNCH*                                     Senior Vice President, Director             None
                                                       of Marketing
         MARK R. GORDON*                               Senior Vice President, Director             None
                                                       of Marketing
         GERALD I. CETRULO, III                        Senior Vice President of Sales              None
         140 West Parkway
         Pompton Plains, NJ  07444
         BRADLEY W. LARSON                             Senior Vice President of Sales              None
         367 Bryan Drive
         Danville, CA  94526
         D. IAN VALENTINE                              Senior Vice President of Sales              None
         307 Braehead Drive
         Fredericksburg, VA  22401
         BRADLEY F. HANSON                             Senior Vice President of Sales,             None
         9707 Xylon Court                              Regional Sales Manager
         Bloomington, MN  55438
         KAREN J. BULLOT*                              Vice President, Retirement Plans            None
         JOHN CARL*                                    Vice President, Marketing                   None
         MARSHA E. JACOBY*                             Vice President, National Accounts           None
                                                       Manager
         WILLIAM W. JOHNSON*                           Vice President, Order Desk                  None

         HELEN SIMON*                                  Vice President, Sales                       None
                                                       Administration Manager
         TIM O'CONNELL                                 Vice President, Regional Sales              None
         14872 Summerbreeze Way
         San Diego, CA  92128
         JULIANA PERKINS                               Vice President, Regional Sales              None
         2348 Adrian Street
         Newbury Park, CA  91320
         JAMES R. BESHER                               Regional Vice President                     None
         14000 Margaux Lane
         Town & Country, MO  63017
         BRADFORD C. DAVIS                             Regional Vice President                     None
         255 4th Avenue, #2
         Kirkland, WA  98033
         CHRISTOPHER J. DERRY                          Regional Vice President                     None
         2380 Mt. Lebanon Church Road
         Alvaton, KY  42122
         JONATHAN G. EVANS                             Regional Vice Pesident                      None
         222 Fairmont Way
         Ft. Lauderdale, FL  33326
</TABLE>
    

<PAGE>



PART C.    OTHER INFORMATION (continued)
<TABLE>
<CAPTION>

                                               SELIGMAN FINANCIAL SERVICES, INC.
                                                    AS OF SEPTEMBER 30, 1996
                 (1)                                         (2)                                          (3)
<S>      <C>                                   <C>                                                 <C>
   
         Name and Principal                         Positions and Offices                        Positions and Offices
          BUSINESS ADDRESS                            WITH UNDERWRITER                              WITH REGISTRANT
         DAVID L. GARDNER                              Regional Vice President                     None
         2504 Clublake Trail
         McKinney, TX  75070
         CARLA A. GOEHRING                             Regional Vice President                     None
         11426 Long Pine
         Houston, TX  77077
         SUSAN R. GUTTERUD                             Regional Vice President                     None
         820 Humboldt, #6
         Denver, CO  80218
         MARK LIEN                                     Regional Vice President                     None
         5904 Mimosa
         Sedalia, MO  65301
         RANDY D. LIERMAN                              Regional Vice President                     None
         2627 R.D. Mize Road
         Independence, MO  64057
         JUDITH L. LYON                                Regional Vice President                     None
         163 Haynes Bridge Road, Ste 205
         Alpharetta, CA  30201
         DAVID L. MEYNCKE                              Regional Vice President                     None
         4718 Orange Grove Way
         Palm Harbor, FL  34684
         MELINDA A. NAWN                               Regional Vice President                     None
         5850 Squire Hill Court
         Cincinnati, OH  45241
         ROBERT H. RUHM                                Regional Vice President                     None
         167 Derby Street
         Melrose, MA  02176
         DIANE H. SNOWDEN                              Regional Vice President                     None
         11 Thackery Lane
         Cherry Hill, NJ  08003
         BRUCE M. TUCKEY                               Regional Vice President                     None
         41644 Chathman Drive
         Novi, MI  48375
         ANDREW S. VEASEY                              Regional Vice President                     None
         14 Woodside
         Rumson, NJ  07760
         KELLI A. WIRTH-DUMSER                         Regional Vice President                     None
         8618 Hornwood Court
         Charlotte, NC  28215
         FRANK J. NASTA*                               Secretary                                   Secretary
         AURELIA LACSAMANA*                            Treasurer                                   None
         JEFFREY S. DEAN*                              Assistant Vice President,                   None
                                                       Annuity Product Manager
         SANDRA FLORIS*                                Assistant Vice President, Order Desk        None
         KEITH LANDRY*                                 Assistant Vice President, Order Deak        None
</TABLE>
    


<PAGE>


PART C.    OTHER INFORMATION (continued)
<TABLE>
<CAPTION>

                                               SELIGMAN FINANCIAL SERVICES, INC.
                                                    AS OF SEPTEMBER 30, 1996
                 (1)                                         (2)                                          (3)
<S>      <C>                                   <C>                                                 <C>
   
         Name and Principal                         Positions and Offices                        Positions and Offices
          BUSINESS ADDRESS                            WITH UNDERWRITER                              WITH REGISTRANT
         FRANK P. MARINO*                              Assistant Vice President, Mutual
                                                       Fund Product Manager                        None
         JOSEPH M. MCGILL*                             Assistant Vice President and                None
                                                       Compliance Officer
         JOYCE PERESS*                                 Assistant Secretary                         None
    

       * The  principal  business  address  of each of  these  directors  and/or
officers is 100 Park Avenue, New York, NY 10017.

(c) Not applicable.
</TABLE>

Item 30.          Location of Accounts and Records
                                    (1)    Investors Fiduciary Trust Company
                                           127 West 10th Street
                                           Kansas City, Missouri  64105 AND
                                    (2)    Seligman Data Corp.
                                           100 Park Avenue
                                           New York, NY  10017

ITEM 31.   MANAGEMENT  SERVICES - Seligman Data Corp.  ("SDC") the  Registrant's
           shareholder  service agent, has an agreement with First Data Investor
           Services  Group  ("FDISG")  pursuant to which  FDISG  provides a data
           processing   system   for   certain   shareholder    accounting   and
           recordkeeping  functions  performed by SDC,  which  commenced in July
           1990. For the fiscal years ended December 31, 1995, 1994 and 1993 the
           approximate  cost of these  services for each Series were:

                                                    1995       1994       1993
                                                    ----       ----       ----
           U.S. Government Securities Series
               Class A                            $16,300    $16,274   $ 18,400
               Class D                            $ 1,400    $   858        N/A
           High-Yield Bond Series
               Class A                            $24,900    $13,980   $ 15,400
               Class D                            $ 3,300      1,597        N/A

Item 32.   Undertakings  - The Registrant  undertakes,  (1) to furnish a copy of
           the  Registrant's  latest  annual  report,  upon  request and without
           charge,  to every person to whom a prospectus is delivered and (2) if
           requested  to do so by the  holders  of at least ten  percent  of its
           outstanding shares, to call a meeting of shareholders for the purpose
           of voting upon the removal of a director or  directors  and to assist
           in  communications  with other  shareholders  as  required by Section
           16(c) of the Investment Company Act of 1940.


<PAGE>


                                   SIGNATURES

         Pursuant  to the  requirements  of the  Securities  Act of 1933 and the
Investment   Company   Act  of  1940  the   Registrant   has  duly  caused  this
Post-Effective  Amendment No. 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 31st day of October, 1996.

                                                SELIGMAN HIGH INCOME FUND SERIES




                                                 By: /S/ WILLIAM C. MORRIS
                                                     ---------------------------
                                                     William C. Morris, Chairman


         Pursuant  to the  requirements  of the  Securities  Act of 1933 and the
Investment  Company Act of 1940, this  Post-Effective  Amendment No. 21 has been
signed below by the following persons in the capacities indicated on October 31,
1996.

      SIGNATURE                                            TITLE



/S/ WILLIAM C. MORRIS                        Chairman of the Trustees (Principal
- ------------------------------------
     William C. Morris*                        executive officer) and Trustee


/S/ BRIAN T. ZINO                            Trustee and President
- ------------------------------------
     Brian T. Zino


/S/ THOMAS G. ROSE                           Treasurer (Principal financial and
- ------------------------------------
Thomas G. Rose   Accounting Officer)




Fred E. Brown, Trustee               )
Alice S. Ilchman, Trustee            )
John E. Merow, Trustee               )
Betsy S. Michel, Trustee             )
James C. Pitney, Trustee             )   /S/  BRIAN T. ZINO
                                         ------------------------------------
James Q. Riordan, Trustee            )       *Brian T. Zino, Attorney-In-Fact
Ronald T. Schroeder, Director        )
Robert L. Shafer, Trustee            )
James N. Whitson, Trustee            )


<PAGE>


                        SELIGMAN HIGH INCOME FUND SERIES
                      Post-Effecive Amendment No. 21 to the
                       Registration Statement on Form N-1A



                                  EXHIBIT INDEX


             FORM N-1A ITEM                          NO. DESCRIPTION

               24(b) (17)                        Financial Data Schedules
                                             for period ended June 30, 1996


<TABLE> <S> <C>



<ARTICLE> 6
<SERIES>
   <NUMBER> 031
   <NAME> SELIGMAN HIGH-YIELD BOND SERIES CL. A
<MULTIPLIER> 1000
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          DEC-31-1996
<PERIOD-END>                               JUN-30-1996
<INVESTMENTS-AT-COST>                           444241
<INVESTMENTS-AT-VALUE>                          449717
<RECEIVABLES>                                    20075
<ASSETS-OTHER>                                     201
<OTHER-ITEMS-ASSETS>                                 0
<TOTAL-ASSETS>                                  469993
<PAYABLE-FOR-SECURITIES>                         32421
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                         2734
<TOTAL-LIABILITIES>                              35155
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                        435872
<SHARES-COMMON-STOCK>                            36895<F1>
<SHARES-COMMON-PRIOR>                            26169<F1>
<ACCUMULATED-NII-CURRENT>                            0
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                         (6510)
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                          5476
<NET-ASSETS>                                    260023<F1>
<DIVIDEND-INCOME>                                    0
<INTEREST-INCOME>                                12252<F1>
<OTHER-INCOME>                                       0
<EXPENSES-NET>                                  (1328)<F1>
<NET-INVESTMENT-INCOME>                          10924<F1>
<REALIZED-GAINS-CURRENT>                          5229
<APPREC-INCREASE-CURRENT>                       (2580)
<NET-CHANGE-FROM-OPS>                            19217
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                      (10924)<F1>
<DISTRIBUTIONS-OF-GAINS>                             0
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                          17495<F1>
<NUMBER-OF-SHARES-REDEEMED>                     (7552)<F1>
<SHARES-REINVESTED>                                783<F1>
<NET-CHANGE-IN-ASSETS>                          162556
<ACCUMULATED-NII-PRIOR>                              0
<ACCUMULATED-GAINS-PRIOR>                      (11739)
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                              729<F1>
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                                   1328<F1>
<AVERAGE-NET-ASSETS>                            225322<F1>
<PER-SHARE-NAV-BEGIN>                             6.96<F1>
<PER-SHARE-NII>                                    .34<F1>
<PER-SHARE-GAIN-APPREC>                            .09<F1>
<PER-SHARE-DIVIDEND>                             (.34)<F1>
<PER-SHARE-DISTRIBUTIONS>                            0<F1>
<RETURNS-OF-CAPITAL>                                 0<F1>
<PER-SHARE-NAV-END>                               7.05<F1>
<EXPENSE-RATIO>                                   1.18<F1>
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
<FN>
<F1>Class A only.  All other data are fund level.
</FN>
        


</TABLE>

<TABLE> <S> <C>



<ARTICLE> 6
<SERIES>
   <NUMBER> 032
   <NAME> SELIGMAN HIGH-YIELD BOND SERIES CL. B
   <MULTIPLIER> 1000
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          DEC-31-1996
<PERIOD-END>                               JUN-30-1996
<INVESTMENTS-AT-COST>                           444241
<INVESTMENTS-AT-VALUE>                          449717
<RECEIVABLES>                                    20075
<ASSETS-OTHER>                                     201
<OTHER-ITEMS-ASSETS>                                 0
<TOTAL-ASSETS>                                  469993
<PAYABLE-FOR-SECURITIES>                         32421
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                         2734
<TOTAL-LIABILITIES>                              35155
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                        435872
<SHARES-COMMON-STOCK>                             2685<F1>
<SHARES-COMMON-PRIOR>                                0<F1>
<ACCUMULATED-NII-CURRENT>                            0
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                         (6510)
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                          5476
<NET-ASSETS>                                     18931<F1>
<DIVIDEND-INCOME>                                    0
<INTEREST-INCOME>                                  172<F1>
<OTHER-INCOME>                                       0
<EXPENSES-NET>                                    (30)<F1>
<NET-INVESTMENT-INCOME>                            142<F1>
<REALIZED-GAINS-CURRENT>                          5229
<APPREC-INCREASE-CURRENT>                       (2580)
<NET-CHANGE-FROM-OPS>                            19217
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                        (142)<F1>
<DISTRIBUTIONS-OF-GAINS>                             0
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                           2714<F1>
<NUMBER-OF-SHARES-REDEEMED>                       (36)<F1>
<SHARES-REINVESTED>                                  7<F1>
<NET-CHANGE-IN-ASSETS>                          162556
<ACCUMULATED-NII-PRIOR>                              0
<ACCUMULATED-GAINS-PRIOR>                      (11739)
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                               10<F1>
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                                     30<F1>
<AVERAGE-NET-ASSETS>                              8151<F1>
<PER-SHARE-NAV-BEGIN>                             7.06<F1>
<PER-SHARE-NII>                                    .12<F1>
<PER-SHARE-GAIN-APPREC>                            .01<F1>
<PER-SHARE-DIVIDEND>                             (.12)<F1>
<PER-SHARE-DISTRIBUTIONS>                            0<F1>
<RETURNS-OF-CAPITAL>                                 0<F1>
<PER-SHARE-NAV-END>                               7.05<F1>
<EXPENSE-RATIO>                                   1.93<F1>
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
<FN>
<F1>Class B only.  All other data are fund level.
</FN>
        

</TABLE>

<TABLE> <S> <C>


<ARTICLE> 6
<SERIES>
   <NUMBER> 034
   <NAME> SELIGMAN HIGH-YIELD BOND SERIES CL. D
   <MULTIPLIER> 1000
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          DEC-31-1996
<PERIOD-END>                               JUN-30-1996
<INVESTMENTS-AT-COST>                           444241
<INVESTMENTS-AT-VALUE>                          449717
<RECEIVABLES>                                    20075
<ASSETS-OTHER>                                     201
<OTHER-ITEMS-ASSETS>                                 0
<TOTAL-ASSETS>                                  469993
<PAYABLE-FOR-SECURITIES>                         32421
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                         2734
<TOTAL-LIABILITIES>                              35155
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                        435872
<SHARES-COMMON-STOCK>                            22112<F1>
<SHARES-COMMON-PRIOR>                            12949<F1>
<ACCUMULATED-NII-CURRENT>                            0
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                         (6510)
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                          5476
<NET-ASSETS>                                    155884<F1>
<DIVIDEND-INCOME>                                    0
<INTEREST-INCOME>                                 6692<F1>
<OTHER-INCOME>                                       0
<EXPENSES-NET>                                  (1190)<F1>
<NET-INVESTMENT-INCOME>                           5502<F1>
<REALIZED-GAINS-CURRENT>                          5229
<APPREC-INCREASE-CURRENT>                       (2580)
<NET-CHANGE-FROM-OPS>                            19217
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                       (5502)<F1>
<DISTRIBUTIONS-OF-GAINS>                             0
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                         11883<F1>
<NUMBER-OF-SHARES-REDEEMED>                    (3206)<F1>
<SHARES-REINVESTED>                               486<F1>
<NET-CHANGE-IN-ASSETS>                          162556
<ACCUMULATED-NII-PRIOR>                              0
<ACCUMULATED-GAINS-PRIOR>                      (11739)
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                              398<F1>
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                                   1190<F1>
<AVERAGE-NET-ASSETS>                            123238<F1>
<PER-SHARE-NAV-BEGIN>                             6.96<F1>
<PER-SHARE-NII>                                    .32<F1>
<PER-SHARE-GAIN-APPREC>                            .09<F1>
<PER-SHARE-DIVIDEND>                             (.32)<F1>
<PER-SHARE-DISTRIBUTIONS>                            0<F1>
<RETURNS-OF-CAPITAL>                                 0<F1>
<PER-SHARE-NAV-END>                               7.05<F1>
<EXPENSE-RATIO>                                   1.95<F1>
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
<FN>
<F1>Class D only.  All other data are fund level.
</FN>
        


</TABLE>

<TABLE> <S> <C>



<ARTICLE> 6
<SERIES>
   <NUMBER> 011
   <NAME> SELIGMAN U.S.GOVERNMENT SECURITIES CLASS A
<MULTIPLIER> 1000
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          DEC-31-1996
<PERIOD-END>                               JUN-30-1996
<INVESTMENTS-AT-COST>                            56746
<INVESTMENTS-AT-VALUE>                           55849
<RECEIVABLES>                                      798
<ASSETS-OTHER>                                     150
<OTHER-ITEMS-ASSETS>                                 0
<TOTAL-ASSETS>                                   56797
<PAYABLE-FOR-SECURITIES>                             0
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                          388
<TOTAL-LIABILITIES>                                388
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                         73323
<SHARES-COMMON-STOCK>                             7237<F1>
<SHARES-COMMON-PRIOR>                             7701<F1>
<ACCUMULATED-NII-CURRENT>                            0
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                        (16017)
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                         (897)
<NET-ASSETS>                                     48258<F1>
<DIVIDEND-INCOME>                                    0
<INTEREST-INCOME>                                 1841<F1>
<OTHER-INCOME>                                       0
<EXPENSES-NET>                                   (305)<F1>
<NET-INVESTMENT-INCOME>                           1536<F1>
<REALIZED-GAINS-CURRENT>                           282
<APPREC-INCREASE-CURRENT>                       (4476)
<NET-CHANGE-FROM-OPS>                           (2449)
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                       (1536)<F1>
<DISTRIBUTIONS-OF-GAINS>                             0
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                            743<F1>
<NUMBER-OF-SHARES-REDEEMED>                     (1321)<F1>
<SHARES-REINVESTED>                                114<F1>
<NET-CHANGE-IN-ASSETS>                          (6833)
<ACCUMULATED-NII-PRIOR>                              0
<ACCUMULATED-GAINS-PRIOR>                      (16299)
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                              127<F1>
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                                    305<F1>
<AVERAGE-NET-ASSETS>                             51213<F1>
<PER-SHARE-NAV-BEGIN>                             7.15<F1>
<PER-SHARE-NII>                                    .20<F1>
<PER-SHARE-GAIN-APPREC>                          (.48)<F1>
<PER-SHARE-DIVIDEND>                             (.20)<F1>
<PER-SHARE-DISTRIBUTIONS>                            0<F1>
<RETURNS-OF-CAPITAL>                                 0<F1>
<PER-SHARE-NAV-END>                               6.67<F1>
<EXPENSE-RATIO>                                   1.20<F1>
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
<FN>
<F1>Class A only.  All other data are fund level.
</FN>
        

</TABLE>

<TABLE> <S> <C>


<ARTICLE> 6
<SERIES>
   <NUMBER> 014
   <NAME> SELIGMAN U.S.GOVERNMENT SECURITIES CLASS D
<MULTIPLIER> 1000
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          DEC-31-1996
<PERIOD-END>                               JUN-30-1996
<INVESTMENTS-AT-COST>                            56746
<INVESTMENTS-AT-VALUE>                           55849
<RECEIVABLES>                                      798
<ASSETS-OTHER>                                     150
<OTHER-ITEMS-ASSETS>                                 0
<TOTAL-ASSETS>                                   56797
<PAYABLE-FOR-SECURITIES>                             0
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                          388
<TOTAL-LIABILITIES>                                388
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                         73323
<SHARES-COMMON-STOCK>                             1220<F1>
<SHARES-COMMON-PRIOR>                             1142<F1>
<ACCUMULATED-NII-CURRENT>                            0
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                        (16017)
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                         (897)
<NET-ASSETS>                                      8151<F1>
<DIVIDEND-INCOME>                                    0
<INTEREST-INCOME>                                  288<F1>
<OTHER-INCOME>                                       0
<EXPENSES-NET>                                    (79)<F1>
<NET-INVESTMENT-INCOME>                            209<F1>
<REALIZED-GAINS-CURRENT>                           282
<APPREC-INCREASE-CURRENT>                       (4476)
<NET-CHANGE-FROM-OPS>                           (2449)
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                        (209)<F1>
<DISTRIBUTIONS-OF-GAINS>                             0
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                            504<F1>
<NUMBER-OF-SHARES-REDEEMED>                      (448)<F1>
<SHARES-REINVESTED>                                 22<F1>
<NET-CHANGE-IN-ASSETS>                          (6833)
<ACCUMULATED-NII-PRIOR>                              0
<ACCUMULATED-GAINS-PRIOR>                      (16299)
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                               20<F1>
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                                     79<F1>
<AVERAGE-NET-ASSETS>                              8018<F1>
<PER-SHARE-NAV-BEGIN>                             7.16<F1>
<PER-SHARE-NII>                                    .18<F1>
<PER-SHARE-GAIN-APPREC>                          (.48)<F1>
<PER-SHARE-DIVIDEND>                             (.18)<F1>
<PER-SHARE-DISTRIBUTIONS>                            0<F1>
<RETURNS-OF-CAPITAL>                                 0<F1>
<PER-SHARE-NAV-END>                               6.68<F1>
<EXPENSE-RATIO>                                   1.98<F1>
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
<FN>
<F1>Class D only.  All other data are fund level.
</FN>
        


</TABLE>


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