SELIGMAN FRONTIER FUND INC
497, 1998-04-21
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SELIGMAN
- -------------
FRONTIER
FUND, INC.


                                   [GRAPHIC]

                                   PROSPECTUS
                                FEBRUARY 1, 1998

                                   ----------

                                       A

                                    Capital

                               Appreciation Fund

                                     In Its

                                   14th Year

                                     [LOGO]

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



EQFR1 2/98
    

<PAGE>

                          SELIGMAN FRONTIER FUND, INC.

                     100 Park Avenue o New York, N.Y. 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

                                                                February 1, 1998

     Seligman  Frontier  Fund,  Inc.  (the "Fund") is an  open-end,  diversified
management  investment  company that invests to produce growth in capital value.
Income may be considered  but will only be  incidental to the Fund's  investment
objective of growth in capital value. For a description of the Fund's investment
objective and policies, including the risk factors associated with an investment
in the Fund,  see  "Investment  Objective,  Policies and Risks." There can be no
assurance that the Fund's investment objective will be achieved.

     Investment  advisory and management services are provided to the Fund by J.
& W. Seligman & Co. Incorporated (the "Manager") and, to the extent requested by
the  Manager  in  respect  of  foreign  assets,   Seligman  Henderson  Co.  (the
"Subadviser").  The Fund's distributor is Seligman Financial Services,  Inc., an
affiliate of the Manager.

     The Fund 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 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 automatically  convert to Class A shares on
the last day of the month that precedes the eighth  anniversary of their date of
purchase.  Class D shares are sold without an initial sales load but are subject
to a CDSL of 1% imposed on  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.  No CDSL will be
imposed  on  shares   acquired   through  the   reinvestment   of  dividends  or
distributions  received from any class of shares. See "Alternative  Distribution
System." Shares of the Fund may be purchased  through any authorized  investment
dealer.

     This Prospectus sets forth concisely the information a prospective investor
should know about the Fund before investing. Please read it carefully before you
invest and keep it for future reference.  Additional information about the Fund,
including  a  Statement  of  Additional  Information,  has been  filed  with the
Securities and Exchange Commission.  The Statement of Additional  Information is
available  upon  request  without  charge by calling or writing  the Fund at the
telephone  numbers or 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 THE
                         CONTRARY IS A CRIMINAL OFFENSE.
                                   ----------
                                TABLE OF CONTENTS

                                                                        PAGE
                                                                        ----
Summary of Fund Expenses .............................................     2
Financial Highlights .................................................     3
Alternative Distribution System.......................................     5
Investment Objective, Policies and Risks..............................     7
Management Services...................................................     9
Purchase of Shares ...................................................    11
Telephone Transactions................................................    16
Redemption of Shares..................................................    17


Administration, Shareholder Services and
  Distribution Plan...................................................    19
Exchange Privilege....................................................    20
Further Information about Transactions in the Fund....................    22
Dividends and Gain Distributions .....................................    22
Federal Income Taxes..................................................    23
Shareholder Information ..............................................    24
Advertising the Fund's Performance ...................................    26
Organization and Capitalization ......................................    27


<PAGE>

                            SUMMARY OF FUND EXPENSES

<TABLE>
<CAPTION>
                                                                   CLASS A                 CLASS B                CLASS D
                                                              -----------------       -----------------      -----------------
                                                               (INITIAL SALES          (DEFERRED SALES        (DEFERRED SALES
                                                              LOAD ALTERNATIVE)       LOAD ALTERNATIVE)      LOAD 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
                                                             in first 18 months         3% in 3rd and
                                                              if initial sales            4th years
                                                               load was waived         2% in 5th year
                                                             in full due to size       1% in 6th year
                                                                 of purchase           None thereafter
        Redemption Fees ...............................             None                    None                   None
        Exchange Fees .................................             None                    None                   None

</TABLE>

<TABLE>
<CAPTION>
                                                                   CLASS A                 CLASS B                CLASS D
                                                                   -------                 -------                -------
<S>                                                                  <C>                    <C>                    <C>
ANNUAL FUND OPERATING EXPENSES FOR FISCAL 1997                     
(as a percentage of average net assets)
     Management Fees...................................               .94%                   .94%                   .94%
     12b-1 Fees .......................................               .22%                  1.00%*                 1.00%*
     Other Expenses ...................................               .36%                   .36%                   .36%
     Total Fund Operating Expenses ....................              1.52%                  2.30%                  2.30%
</TABLE>

     The  purpose  of this table is to assist  investors  in  understanding  the
various costs and expenses which  shareholders  of the Fund may 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.  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 CDSL,
a one-time  charge,  only if the shares are redeemed  within  eighteen months of
purchase. The CDSLs 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.
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 Fund's
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>
An investor 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        $62       $ 93      $126        $220
                                                            Class B+        73        102       143         244
                                                            Class D         33         72       123         264

An investor would pay the following  expenses on the same
investment, assuming no redemption ........................ Class B+       $23        $72      $123        $244
                                                            Class D         23         72       123         264
</TABLE>
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.


- ----------
*  Includes  an annual  distribution  fee of .75% and an annual  service  fee of
   .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 Fund may not exceed  6.25% of total
   gross sales, subject to certain exclusions.  The maximum sales charge rule is
   applied separately to each class. The 6.25% limitation is imposed on the Fund
   rather than on a per  shareholder  basis.  Therefore,  a long-term Class B or
   Class D shareholder of the Fund 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.


 + The expenses shown for the ten-year period reflect the  conversion of Class B
   shares to Class A shares after 8 years.

  

                                       2
<PAGE>

                              FINANCIAL HIGHLIGHTS


     The Fund's financial  highlights for the periods  presented below have been
audited by Deloitte & Touche LLP, independent auditors. This information,  which
is derived from the financial and accounting records of the Fund, should be read
in conjunction  with the financial  statements and notes contained in the Fund's
1997 Annual Report,  which is incorporated by reference in the Fund's  Statement
of Additional Information, copies of which may be obtained by calling or writing
the Fund at the telephone  numbers or address provided on the cover page of this
Prospectus.

     "Per share  operating  performance"  data is designed to allow investors to
trace the operating  performance of each Class,  on a per share basis,  from the
beginning  net  asset  value to the  ending  net  asset  value so that  they can
understand what effect the individual items have on their  investment,  assuming
it was held throughout the period.  Generally, the per share amounts are derived
by converting the actual dollar amounts  incurred for each item, as disclosed in
the financial statements, to their equivalent per share amount.

     "Total return based on net asset value"  measures each Class's  performance
assuming investors purchased shares of the Fund 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 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 or selling  shares of the Fund.  Total returns
for periods of less than one year are not annualized.

     "Average  commission rate paid" represents the average  commissions paid by
the Fund to purchase or sell securities.  It is determined by dividing the total
commission  dollars paid by the number of shares  purchased  and sold during the
period for which commissions were paid.


<TABLE>
<CAPTION>
                                                                                 CLASS A
                                        ------------------------------------------------------------------------------------------
                                                                         YEAR ENDED SEPTEMBER 30,
                                        ------------------------------------------------------------------------------------------
                                        1997      1996      1995     1994     1993     1992     1991       1990     1989      1988
PER SHARE OPERATING                     ----      ----      ----     ----     ----     ----     ----       ----     ----      ----
PERFORMANCE:
<S>                                    <C>       <C>       <C>      <C>      <C>      <C>      <C>       <C>       <C>      <C>
Net asset value, beginning of year .   $15.38    $14.04    $11.62   $12.83   $10.22   $10.71    $7.01      $8.99    $6.90     $9.35
                                       ------    ------    ------   ------   ------   ------   ------      -----    -----     -----
Net investment loss ................     (.16)     (.13)     (.06)    (.08)    (.03)    (.07)    (.03)        --       --      (.02)
Net realized and unrealized
  investment gain (loss) ...........     3.20      1.95      3.87     1.10     4.54      .58     3.76      (1.98)    2.09     (1.44)
                                       ------    ------    ------   ------   ------   ------   ------      -----    -----     -----
Increase (decrease) from
  investment operations ............     3.04      1.82      3.81     1.02     4.51      .51     3.73      (1.98)    2.09     (1.46)
Dividends paid .....................       --        --        --       --       --       --     (.01)*       --       --        --
Distributions from net gain realized     (.87)     (.48)    (1.39)   (2.23)   (1.90)   (1.00)    (.02)        --       --      (.99)
                                       ------    ------    ------   ------   ------   ------   ------      -----    -----     -----
Net increase (decrease)
  in net asset value ...............     2.17      1.34      2.42    (1.21)    2.61     (.49)    3.70      (1.98)    2.09     (2.45)
                                       ------    ------    ------   ------   ------   ------   ------      -----    -----     -----
Net asset value, end of year .......   $17.55    $15.38    $14.04   $11.62   $12.83   $10.22   $10.71      $7.01    $8.99     $6.90
                                       ======    ======    ======   ======   ======   ======   ======      =====    =====     =====
TOTAL RETURN BASED ON
NET ASSET VALUE: ...................    21.19%    13.40%    36.80%    9.79%   50.67%    4.91%   53.34%   (22.02)%   30.29%  (12.25)%
RATIOS/SUPPLEMENTAL DATA:
Expenses to average net assets......     1.52%     1.56%     1.43%    1.34%    1.25%    1.37%    1.28%      1.26%    1.32%     1.19%
Net investment income (loss)
  to average net assets.............   (1.10)%    (.91)%    (.50)%   (.87)%   (.27)%   (.71)%   (.35)%        --      .02%    (.20)%
Portfolio turnover..................    97.37%    59.36%    71.52%  124.76%  129.13%  129.46%   38.56%     38.55%   50.60%    80.03%
Average commission rate paid........    $.0540    $.0538
Net assets, end of year
  (000s omitted)....................  $568,261  $523,737  $272,122  $58,478  $43,188  $27,178  $23,449    $17,127  $22,966   $19,205
</TABLE>

- ----------------
     All per share data for fiscal years 1988 through 1992 have been restated to
reflect the 2-for-1 stock split effected as a 100% stock dividend which occurred
on April  16,1992.  For fiscal  years  1994  through  1997,  the above per share
amounts of net investment  loss and net realized and unrealized  investment gain
(loss)  have been  calculated  based upon  average  shares  outstanding  for the
periods.

   * Excess of taxable  dividend over net investment  income was charged against
     paid-in capital.


     The data provided above reflects  historical  information and therefore has
not been adjusted to  reflect(i),  for the periods prior to its  implementation,
the effect of the  Administration,  Shareholder  Services and Distribution  Plan
approved  by  shareholders  on  May 1, 1992 and  effective June 1, 1992 and (ii)
through September 30, 1996 the effect of the increase in the management fee rate
payable by the Fund, approved by shareholders on December 12, 1995 and effective
January 1, 1996.



                                       3
<PAGE>

                        FINANCIAL HIGHLIGHTS (continued)

<TABLE>
<CAPTION>
                                                 CLASS B                              CLASS D
                                            ------------------     ------------------------------------------------
                                             YEAR     4/22/96*           YEAR ENDED SEPTEMBER 30,           5/3/93*
                                             ENDED      TO         ------------------------------------       TO
                                            9/30/97   9/30/96      1997       1996       1995      1994     9/30/93
                                            -------   -------      ----       ----       ----      ----     -------
<S>                                         <C>       <C>         <C>        <C>        <C>       <C>       <C>
PER SHARE OPERATING
PERFORMANCE:
Net asset value, beginning of period ...    $14.78    $14.55      $14.77     $13.61     $11.40    $12.80    $10.12
                                            ------    ------      ------     ------     ------    ------    ------
Net investment loss ....................      (.27)     (.11)       (.27)      (.24)      (.15)     (.23)     (.04)
Net realized and unrealized
  investment gain ......................      3.04       .34        3.06       1.88       3.75      1.06      2.72
                                            ------    ------      ------     ------     ------    ------    ------
Increase from investment operations           2.77       .23        2.79       1.64       3.60       .83      2.68
Dividends paid .........................         --       --          --         --         --        --        --
Distributions from net gain realized ...      (.87)       --        (.87)      (.48)     (1.39)    (2.23)       --
                                            ------    ------      ------     ------     ------    ------    ------
Net increase (decrease)
  in net asset value ...................      1.90       .23        1.92       1.16       2.21     (1.40)     2.68
                                            ------    ------      ------     ------     ------    ------    ------
Net asset value, end of period .........    $16.68    $14.78      $16.69     $14.77     $13.61    $11.40    $12.80
                                            ======    ======      ======     ======     ======    ======    ======
TOTAL RETURN BASED ON
NET ASSET VALUE: .......................     20.17%     1.58%      20.32%     12.47%     35.53%     8.06%    26.48%
RATIOS/SUPPLEMENTAL DATA:
Expenses to average net assets .........      2.30%     2.45%0      2.30%      2.35%      2.29%     2.72%     2.24%0
Net investment income (loss)
  to average net assets ................    (1.88)%   (1.80)%0    (1.88)%    (1.70)%    (1.35)%   (2.25)%   (1.94)%0
Portfolio turnover .....................     97.37%    59.36%+     97.37%     59.36%     71.52%   124.76%   129.13%++
Average commission rate paid ...........     $.0540    $.0538+     $.0540     $.0538
Net assets, end of period
  (000s omitted) .......................    $69,869   $24,016    $390,904   $337,327   $145,443    $9,318      $967
</TABLE>

- ----------
 * Commencement of offering of shares + For the year ended September 30, 1996.
++ For the year ended September 30, 1993.
 0 Annualized.

     The data provided above reflects  historical  information and therefore has
not been  adjusted to reflect,  through  September  30, 1996,  the effect of the
increase  in  the  management  fee  rate  payable  by  the  Fund,   approved  by
shareholders on December 12, 1995 and effective January 1, 1996.


                                       4
<PAGE>

ALTERNATIVE DISTRIBUTION SYSTEM

     The Fund  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 Fund 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
Fund 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 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 sales load deducted at the time of purchase would be less or waived in full.
However,  investors  should consider the effect of the 1% CDSL imposed on shares
on which the initial sales load was waived in full because the amount of Class A
shares purchased reached $1,000,000 or more. In addition, Class B shares will be
converted  automatically to 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 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 Fund.

     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


                                       5
<PAGE>

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  Maryland  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 to be paid by
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  Directors of the Fund  believe that no conflict of interest  currently
exists between the Class A, Class B and Class D shares. On an ongoing basis, the
Directors,  in the  exercise of their  fiduciary  duties  under the 1940 Act and
Maryland  law,  will  seek to  ensure  that no such  conflict  arises.  For this
purpose,  the Directors  will monitor the Fund 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 Fund 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 forego
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
                                    (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 in full
                                                            due to the size of
                                                            the purchase.

CLASS B     None                    Service fee of          CDSL of:
                                    25%;                    5% in 1st year
                                    Distribution fee        4% in 2nd year
                                    of .75% until           3% in 3rd and
                                    conversion*             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 within
                                    fee of up to .75%.      one year of
                                                            purchase.

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


                                       6
<PAGE>

INVESTMENT OBJECTIVE, POLICIES AND RISKS

     The Fund is an open-end,  diversified  management  investment  company,  as
defined in the 1940 Act, or mutual fund,  incorporated  in Maryland in 1984. The
Fund seeks to produce growth in capital value; income may be considered but will
be only incidental to the Fund's investment objective.

     The Fund  seeks to  achieve  its  objective  by  investing  in a  portfolio
consisting of securities of companies  selected for their growth prospects.  The
Fund invests  primarily in common stocks.  It may also invest in securities that
may be exchanged for or converted into common stock,  preferred stock and common
stock  purchase  warrants  believed  by the  Manager to provide  capital  growth
opportunities.  There  can be no  assurance  that  the  Fund  will  achieve  its
objective.

     Under normal conditions,  the Fund will invest at least 65% of the value of
its total assets in equity securities of companies with market  capitalizations,
at the time of purchase by the Fund, of up to $1.25 billion. Stocks of companies
believed by the Manager to have special  characteristics  (such as a high growth
rate of unit sales,  an important  opportunity  in a developing  industry,  or a
distinct competitive  advantage) are favored.  Securities of these companies may
be subject to above average market price fluctuation and business risk; however,
the Manager will seek to temper such risks by diversification of investments and
by avoiding concentration of investments in any one industry.

     Investments other than in securities of the companies  discussed above will
be  substantially  in  securities  issued or  guaranteed  by the  United  States
Government   (such  as  Treasury   bills,   notes  and  bonds),   its  agencies,
instrumentalities or authorities;  highly-rated corporate debt securities (rated
AA-, or better, by Standard & Poor's  Corporation  ("Standard & Poor's") or Aa3,
or better, by Moody's Investors  Service,  Inc.  ("Moody's"));  prime commercial
paper (rated A-1+/A-1 by Standard & Poor's or P-1 by Moody's);  and certificates
of  deposit of the 100  largest  (based on  assets)  banks  that are  subject to
regulatory  supervision by the U.S.  Government or state governments and the 100
largest (based on assets)  foreign banks with branches or agencies in the United
States.

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

     FOREIGN   SECURITIES.   The  Fund  may  invest  in  commercial   paper  and
certificates  of deposit  issued by foreign  banks and may invest  directly  and
through  American  Depositary  Receipts  ("ADRs") in other 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 securities may not be
as liquid as U.S.  securities.  Securities  of  foreign  companies  may  involve
greater market risk than  securities of U.S.  companies,  and foreign  brokerage
commissions  and  custody  fees are  generally  higher  than those in the


                                       7
<PAGE>

United States.  Investments  in foreign  securities may also be subject to local
economic or political risks, political instability and possible  nationalization
of  issuers.   ADRs,   which  are  traded  in  dollars  on  U.S.   exchanges  or
over-the-counter,  are  issued by  domestic  banks  and  evidence  ownership  of
securities issued by foreign corporations.  The Fund may invest up to 10% of its
total assets in foreign  securities that it holds  directly,  but this 10% limit
does not apply to foreign  securities  held through ADRs or to commercial  paper
and certificates of deposit issued by foreign banks.

     REPURCHASE  AGREEMENTS.  The Fund may enter into repurchase agreements with
commercial  banks and  broker/dealers  as a short-term cash  management  tool. A
repurchase  agreement  is an  agreement  under  which the Fund  acquires a money
market instrument subject to resale at an agreed upon price and date. The resale
price reflects an agreed upon interest rate effective for the period of time the
instrument is held by the Fund.  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  are  typically  entered  into for periods of one week or
less. The Fund will not enter into repurchase agreements of more than one week's
duration if more than 10% of its net assets would be invested in such agreements
and other illiquid securities.

     LENDING OF PORTFOLIO SECURITIES.  The Fund may lend portfolio securities to
broker/dealers or other  institutions,  if, in the opinion of the Manager,  such
loans would be beneficial to the Fund.  The borrower must maintain with the Fund
cash or equivalent  collateral equal to at least 100% of the market value of the
securities  loaned.  During  the time  portfolio  securities  are on  loan,  the
borrower pays the Fund any dividend or interest paid on the securities. The Fund
may invest the cash collateral and earn  additional  income or receive an agreed
upon amount of interest income from the borrower.

     BORROWING. The Fund may borrow money only from banks and only for temporary
or emergency  purposes (but not for the purchase of portfolio  securities) in an
amount not in excess of 15% of the value of its total assets.  The Fund will not
purchase additional portfolio securities if the Fund has outstanding  borrowings
in excess of 5% of the value of its total assets.

     OPTIONS  TRANSACTIONS.  The Fund may  purchase  put  options  on  portfolio
securities in an attempt to provide a hedge against a decrease in the price of a
security held by the Fund.  The Fund will not purchase  options for  speculative
purposes.  Purchasing  a put  option  gives  the  Fund the  right  to sell,  and
obligates the writer to buy, the  underlying  security at the exercise  price at
any time during the option period.

     When the Fund  purchases an option,  it is required to pay a premium to the
party writing the option and a commission to the broker  selling the option.  If
the option is exercised by the Fund, the premium and the commission  paid may be
greater than the amount of the brokerage commission charged if the security were
to be purchased or sold directly. See "Investment Objective, Policies and Risks"
in the Statement of Additional Information.

     GENERAL.  Except as noted above, the foregoing  investment policies are not
fundamental  and the Board of  Directors of the Fund may change them without the
vote of a majority of the Fund's outstanding  voting securities.  As a matter of
policy, the Board would not change the Fund's investment objective of seeking to
produce growth in capital value without such a vote. A more detailed description
of the Fund's investment policies, including a list of those restrictions on the
Fund's  investment  activities  which  cannot be  changed  without  such a vote,
appears in the Statement of Additional Information.  Under the 1940 Act, a "vote
of a  majority  of the  outstanding  voting  securities"  of the Fund  means the
affirmative vote of the lesser of (1) more than 50% of the outstanding shares of
the Fund or (2) 67% or more of the shares present at a shareholders'  meeting if
more than 50% of the outstanding shares are represented at the meeting in person
or by proxy.


                                       8
<PAGE>

MANAGEMENT SERVICES

     THE MANAGER.  The Board of Directors  provides broad  supervision  over the
affairs of the Fund.  Pursuant to a Management  Agreement  approved by the Board
and the  shareholders  of the Fund, the Manager  manages the  investments of the
Fund and  administers the business and other affairs of the Fund. The address of
the Manager is 100 Park Avenue, New York, NY 10017.

     The Manager also serves as manager of seventeen other investment  companies
which,  together  with the  Fund,  make up the  "Seligman  Group."  These  other
companies are: Seligman Capital Fund, Inc., Seligman Cash Management Fund, Inc.,
Seligman Common Stock Fund, Inc., Seligman  Communications and Information Fund,
Inc., Seligman Growth Fund, Inc.,  Seligman Henderson Global Fund Series,  Inc.,
Seligman High Income Fund Series, Seligman Income Fund, Inc., Seligman Municipal
Fund  Series,  Inc.,  Seligman  Municipal  Series  Trust,  Seligman  New  Jersey
Municipal Fund,  Inc.,  Seligman  Pennsylvania  Municipal Fund Series,  Seligman
Portfolios,  Inc.,  Seligman  Quality  Municipal  Fund,  Inc.,  Seligman  Select
Municipal  Fund,  Inc.,  Seligman  Value Fund Series,  Inc. and  Tri-Continental
Corporation. The aggregate assets of the Seligman Group were approximately $18.0
billion at December 31, 1997. The Manager also provides investment management or
advice to institutional and other accounts having an aggregate value at December
31, 1997 of approximately $6.3 billion.

     Mr.  William C. Morris is Chairman 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 Fund, maintains
the records of shareholder  accounts and furnishes  dividend paying,  redemption
and related services.

     The Fund pays the Manager a management  fee,  calculated  daily and payable
monthly. The management fee, which became effective on January 1, 1996, is equal
to an annual  rate of .95% of the Fund's  average  daily net assets on the first
$750  million of net assets and .85% of the Fund's  average  daily net assets in
excess of $750 million.  Although the management fee is higher than that paid by
most mutual  funds,  the Manager  believes  that such fee is  comparable  to the
management fee paid by a significant  percentage of mutual funds with investment
objectives  similar  to that of the  Fund.  Prior  to  effectiveness  of the new
management  fee schedule,  the  management fee was .75% of the average daily net
assets of the Fund.  The Fund pays all of its expenses  other than those assumed
by the Manager. Total expenses of the Fund's Class A, Class B and Class D shares
for the year  ended  September  30,  1997  amounted  to 1.52%,  2.30% and 2.30%,
respectively, of the average daily net assets of such class.


     THE SUBADVISER.  The Subadviser provides investment  management services to
the Fund with respect to all or a portion of the Fund's foreign investments,  as
designated  by  the  Manager  (the   "Qualifying   Assets").   The  Fund  has  a
non-fundamental  policy  under which it may invest up to 10% of its total assets
in foreign  securities  that are held directly.  The 10% limit does not apply to
foreign  securities held through ADRs or to commercial paper and certificates of
deposit  issued by foreign banks.  The Subadviser  serves the Fund pursuant to a
Subadvisory Agreement with the Manager (the "Subadvisory Agreement"), dated June
1, 1994 , as amended,  January 1, 1996.  Pursuant to the Subadvisory  Agreement,
the  Subadviser,  with respect to the  Qualifying  Assets,  provides  investment
management  services  including  investment  research,  advice and  supervision,
determines which securities will be purchased or sold, makes purchases and sales
on behalf of the Fund and determines how voting and other rights with respect to
securities  held by the Fund  shall be  exercised,  subject  in each case to the
control of the Board of Directors and in accordance  with the Fund's  investment
objective,  policies and principles. For this service, the Subadviser receives a
fee from the  Manager,  payable  monthly.  The  subadvisory  fee rate,  which is
applied to the average  monthly  net  Qualifying  Assets of the Fund (i.e.,  the
Qualifying Assets less any related liabilities as designated



                                       9
<PAGE>

by the  Manager),  is the same as the  overall  rate paid to the  Manager by the
Fund. For the fiscal year ended September 30, 1997, the Fund did not require the
services of the Subadviser  and  therefore,  no fees were paid by the Manager to
the Subadviser.

     The Subadviser  was founded in 1991 as a joint venture  between the Manager
and Henderson International,  Inc., a controlled affiliate of Henderson plc. The
Subadviser,  headquartered in New York, was created to provide international and
global  investment   advice  to  institutional  and  individual   investors  and
investment  companies.  The Subadviser  also  currently  serves as subadviser to
Seligman  Capital  Fund,  Inc.,  Seligman  Common  Stock  Fund,  Inc.,  Seligman
Communications and Information Fund, Inc.,  Seligman Growth Fund, Inc., Seligman
Henderson  Global  Fund  Series,  Inc.,  Seligman  Income  Fund,  Inc.,  certain
portfolios  of Seligman  Portfolios,  Inc.,  each series of Seligman  Value Fund
Series, Inc. and Tri-Continental  Corporation.  The address of the Subadviser is
100 Park Avenue, New York, NY 10017.


     PORTFOLIO  MANAGEMENT.  Mr.  Arsen  Mrakovcic,  a Managing  Director of the
Manager,  is Vice President and Portfolio Manager of the Fund, a position he has
held since October 1, 1995. Mr.  Mrakovcic  joined the Manager in June 1992 as a
Portfolio Assistant, was named Vice President,  Investment Officer on January 1,
1995 and Managing Director on January 1, 1996. Mr. Mrakovcic also serves as Vice
President  of Seligman  Henderson  Global Fund  Series,  Inc.  and  Co-Portfolio
Manager  of its  Seligman  Henderson  Global  Smaller  Companies  Fund  and Vice
President of Seligman Portfolios,  Inc. and Co-Portfolio Manager of its Seligman
Henderson Global Smaller Companies Portfolio.

     Mr. Iain C. Clark is responsible for the Subadviser's day-to-day investment
activity with respect to the Qualifying Assets of the Fund. Mr. Clark has been a
Chief Investment Officer of Seligman Henderson Co. since April 1992. He has also
been a Director and Senior Portfolio Manager of Henderson plc since 1985.

     The Manager's  discussion of the Fund's performance as well as a line graph
illustrating  comparative  performance  information between the Fund, the Lipper
Small Cap Growth Fund Index,  the Russell 2000 Growth Index and the Russell 2000
Index is included in the Fund's 1997 Annual  Report to  Shareholders.  Copies of
the 1997 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.  The Management Agreement and Subadvisory Agreement
each  recognize  that in the purchase and sale of portfolio  securities  for the
Fund,  the Manager and the  Subadviser  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 brokers or dealers to the
Manager  or  the  Subadviser.  The  use  of  brokers  who  provide  supplemental
investment and market  research and securities and economic  analysis may result
in a higher brokerage charge to the Fund than the use of brokers selected on the
basis of seeking the most  favorable  price and  execution and such research and
analysis  received may be useful to the Manager and the Subadviser in connection
with their services to other clients as well as to the Fund. In over-the-counter
markets,  orders are placed with responsible primary market makers unless a more
favorable execution or price is believed to be obtainable.

     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  Directors of the Fund may  determine,
the  Manager  may  consider  sales of shares of the Fund and,  if  permitted  by
applicable laws, may consider sales of shares of the other Seligman Mutual Funds
as a factor  in the  selection  of  brokers  or  dealers  to  execute  portfolio
transactions for the Fund.

     PORTFOLIO  TURNOVER.  A change in  securities  held by the Fund is known as
"portfolio  turnover."  Portfolio turnover may result in the payment by the Fund
of dealer spreads or underwriting  commissions and other transactions costs from
the sale of securities held by the Fund and the  reinvestment of the proceeds in
other  securities.  While it is the  policy of the Fund to hold  securities  for
investment, changes in the securities held


                                       10
<PAGE>

by the Fund  will be made  from  time to time  when the  Manager  believes  such
changes will strengthen the Fund's portfolio. The portfolio turnover of the Fund
may exceed 100%.

PURCHASE OF SHARES

     Seligman Financial  Services,  Inc. ("SFSI"),  an affiliate of the Manager,
acts as  general  distributor  of the  Fund's  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 Fund 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 FUND 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 THAT DO NOT SATISFY THESE MINIMUMS. EXCEPTIONS TO THESE MINIMUMS ARE
AVAILABLE   FOR  FUND  ACCOUNTS   BEING   ESTABLISHED   CONCURRENTLY   WITH  THE
INVEST-A-CHECK(R)  SERVICE.  THE MINIMUM  AMOUNT FOR INITIAL  INVESTMENT  IN THE
SELIGMAN  TIME  HORIZON  MATRIXSM  ASSET  ALLOCATION  PROGRAM  IS  $10,000.  FOR
INFORMATION ABOUT THIS PROGRAM, CONTACT YOUR FINANCIAL ADVISOR.

     The minimum amount for initial investment in the Fund is $500 for investors
who  purchase  shares of the Fund  through  Merrill  Lynch's  MFA and MFA Select
programs.

     There is no minimum  investment  required for investors who purchase shares
of the Fund through wrap fee programs.


     Purchase orders placed for Class B shares must be for an amount [LESS THAN]
$250,000.


     Orders received by an authorized  dealer by the close of regular trading on
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 Fund's net asset  value  determined  as of the
close of regular  trading  on the NYSE on that day plus,  in the case of Class A
shares, any applicable sales load. Orders received by dealers after the close of
regular trading the NYSE, or accepted by SFSI after the close of business,  will
be executed at the Fund's 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  SFSl'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 Frontier Fund,
Inc.  (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.

     Current  shareholders  may buy  additional  shares  of the Fund at any time
through any authorized  dealer or by sending a check payable to "Seligman  Group
of Funds" in our postage-paid return envelope or directly


                                       11
<PAGE>

to SELIGMAN  DATA CORP.,  P.O. BOX 3947,  NEW YORK,  NY  10008-3947.  Checks for
investment  must be in U.S.  dollars  drawn  on a  domestic  bank.  Credit  card
convenience checks and third party checks (i.e.,  checks made payable to someone
other than the  "Seligman  Group of  Funds")  may not be used to open a new fund
account  or  purchase  additional  shares  of the  Fund.  The  check  should  be
accompanied by an investment slip (provided on the bottom of shareholder account
statements) and include the shareholder's  name,  address,  account number, fund
name 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.  IF ONLY  THE  CLASS
DESIGNATION IS MISSING,  THE INVESTMENT  WILL  AUTOMATICALLY  BE MADE IN CLASS A
SHARES.  Orders sent directly to Seligman Data Corp. will be executed at the 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. may charge a $10.00 service fee for checks  returned to
it as uncollectable.  This fee may be deducted from the  shareholder's  account.
For the  protection  of the Fund and its  shareholders,  no redemption of shares
will be permitted with respect to shares  purchased by check (unless  certified)
until the Fund receives notice that the check has cleared, which may be up to 15
days from the credit of such shares to the shareholder's account.


     VALUATION. The net asset value of the Fund's shares is determined as of the
close of regular  trading on the NYSE  (normally,  4:00 p.m.  Eastern time) each
day,  Monday  through  Friday,  except on days that the NYSE is closed.  The net
asset value is calculated  separately  for each class.  Securities are valued at
current market prices or, in the absence thereof, at fair value as determined in
accordance with procedures approved by the Fund's Board of Directors. Short-term
holdings  maturing in 60 days or less are generally  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 fee 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 class 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.

- --------------------------------------------------------------------------------
                      CLASS A SHARES -- SALES LOAD SCHEDULE

                                  SALES LOAD AS A
                                   PERCENTAGE OF           REGULAR
                             ------------------------      DEALER
                                           NET AMOUNT      DISCOUNT
                                           INVESTED       AS A % 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."

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

     There is no initial sales load on purchases of Class A shares of $1,000,000
or more ("NAV  sales");  however,  such  shares  are  subject to a CDSL of 1% if
redeemed within eighteen months of purchase.

     SFSI shall pay broker/dealers,  from its own resources, a fee on NAV sales,
calculated  as follows:  1.00% of NAV sales up to but not  including $2 million;
 .80% of NAV sales from $2 million up to but not  including  $3 million;  .50% of
NAV sales from $3 million up to but not  including  $5 million;  and .25% of NAV
sales from $5 million  

                                       12

<PAGE>


and above.  The calculation of the fee will be based on assets held by a "single
person" as defined below.


     SFSI shall also pay broker/dealers, from its own resources, a fee on assets
of  certain  investments  in  Class  A  shares  of  the  Seligman  Mutual  Funds
participating  in an "eligible  employee  benefit  plan" (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
for each Plan during a single  calendar  year, or portion  thereof.  The payment
schedule,  for each calendar  year, is as follows:  1.00% of sales up to but not
including $2 million;  .80% of sales from $2 million up to but not  including $3
million;  .50% of sales from $3 million up to but not including $5 million;  and
 .25% of sales from $5 million and above.


     REDUCED SALES LOADS.  Reductions in 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.

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


     o THE RIGHT OF ACCUMULATION  allows an investor to combine the amount being
invested in shares of any Seligman  Mutual Fund sold with an initial  sales load
with the total  net asset  value of shares  sold  with an  initial  sales  load,
including  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 an investor must indicate  whether the investor has existing  accounts
when making investments or opening new accounts.


     o A LETTER OF INTENT  allows an investor to purchase  Class A shares over a
13-month period at reduced  initial sales loads,  based upon the total amount of
shares the investor expresses an interest in purchasing plus the total net asset
value of  shares  of the  other  Seligman  Mutual  Funds  already  owned by such
investor 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 an investor
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 an investor must indicate  whether 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."

     SPECIAL  PROGRAMS.  The Fund 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
ancestors,  siblings  (and  their  spouses  and  children)  and any  company  or
organization controlled by any of the foregoing. Such sales also may be


                                       13
<PAGE>

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;  to any  registered  unit  investment  trust  which is the  issuer of
periodic  payment plan  certificates,  the net proceeds of which are invested in
Fund shares;  to separate  accounts  established  and maintained by an insurance
company which are exempt from  registration  under Section  3(c)(11) of the 1940
Act; to registered  representatives  and employees  (and their spouses and minor
children)  of any dealer  that has a sales  agreement  with SFSI;  to  financial
institution trust  departments;  to registered  investment  advisers  exercising
discretionary  investment authority with respect to the purchase of Fund shares;
to accounts of financial  institutions  or  broker/dealers  that charge  account
management fees,  provided 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 solicitation
of, its employees,  members or  participants  in connection with the purchase of
shares of the Fund;  to other  investment  companies  in the  Seligman  Group in
connection  with a  deferred  fee  arrangement  for  outside  directors;  and to
"eligible  employee benefit plans" which have at least (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
Fund  shares.  Sales of shares to such plans must be made in  connection  with a
payroll  deduction system of plan funding or other system acceptable to Seligman
Data Corp.

     Section 403(b) plans sponsored by public  educational  institutions are not
eligible for net asset value purchases based on the aggregate investment made by
the plan or number of eligible  employees.  Employee  benefit plans eligible for
net asset value sales, as described  above,  will 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.  Sales pursuant to a 401(k) alliance
program  which has an agreement  with SFSI 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  into  Class A  shares,  which are  subject  to an annual
service  fee  of  .25%  but  no  distribution   fee.  Shares  purchased  through
reinvestment of dividends and  distributions on Class B shares also will convert
automatically  to Class A shares along with the underlying  shares on which they
were earned. Conversion occurs at the end of the month which precedes the eighth
anniversary  of the purchase  date.  If Class B shares of the Fund are exchanged
for Class B shares of  another  Seligman  Mutual  Fund,  the  conversion  period
applicable to the Class B shares  acquired in the exchange  will apply,  and the
holding period of the shares exchanged will be tacked onto the holding period of
the shares  acquired.  Class B shareholders  of the Fund exercising the exchange
privilege  will  continue  to be  subject to the Fund's  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 Fund  acquired by exchange  will be
subject to the Fund's CDSL schedule if such schedule is


                                       14
<PAGE>


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

     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  redemptions 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  initially  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 value
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.


     The 1% CDSL  normally  imposed on  redemptions  of  certain  Class A shares
(i.e.,  those purchased during the preceding  eighteen months at net asset value
pursuant to the sales load  schedule  provided  under  "Class A  Shares--Initial
Shares Load") will be waived on shares that were  purchased  through Dean Witter
Reynolds,  Inc. ("Dean Witter") by certain Chilean institutional investors (i.e.
pension plans,  insurance  companies and mutual funds).  Upon redemption of such
shares within an eighteen-month  period,  Dean Witter will  reimburse SFSI a pro
rata  portion  of the fee it  received  from  SFSI  at the  time of sale of such
shares.


     To minimize the  application  of a CDSL to a  redemption,  shares  acquired
pursuant to the  investment of dividends and capital gain  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  CDSL 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. No CDSL will be imposed on shares  acquired  through the  investment of
dividends of distributions from any Class A, Class B or Class D shares of mutual
funds in the Seligman Group.

     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 are 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 over 1 year old
    (100 @ $12.25)..........................................      1,225.00
Shares less than 1 year old 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
                                                                 =========

     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.


                                       15
<PAGE>

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


     (a) on redemptions following the death or disability (as defined in section
72(m)(7) of the  Internal  Revenue Code of 1986,  as amended (the  "Code")) of a
shareholder or beneficial owner; (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 (an "IRA")
due to, death, disability, minimum distribution requirements after attainment of
age 701/2 or, for accounts  established prior to January 1, 1998,  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
Directors 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) in whole or in part, in connection
with automatic cash  withdrawals;  (f) in connection with  participation  in the
Merrill  Lynch Small  Market  401(k)  Program;  and (g) in  connection  with the
redemption  of shares of the Fund if the Fund 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 Seligman Mutual Funds. 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 Fund and/or  certain  other mutual funds  managed by the
Manager  during a specified  period of time.  Such bonus or other  incentive may
take the form of payment for travel  expenses,  including  lodging,  incurred in
connection with trips taken by qualifying registered representatives and members
of their  families to places  within or outside the United  States.  The cost to
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,   has  the  ability  to  effect  the   following
transactions via telephone:  (i) redemption of Fund shares with proceeds sent to
address of record (up to $50,000  per day per fund  account),  (ii)  exchange of
Fund 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.


     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  broker/dealer  representative
may be elected 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 CORPORATIONS OR GROUP RETIREMENT PLANS: Telephone redemptions are



                                       16
<PAGE>

not permitted.  Group retirement plans that may allow plan participants to place
telephone  exchanges  directly  with the Fund  must  first  provide  a letter of
authorization  signed by the plan custodian or trustee,  and provide a telephone
services  election  form signed by each plan  participant.  Additionally,  group
retirement  plans are not  permitted  to change a dividend or gain  distribution
option.

     All  Seligman  Mutual Fund  accounts  with the same account  number  (i.e.,
registered  exactly the same),  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 telephone services election form.

     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 Fund shares via telephone.  In
these  circumstances,  the shareholder should consider using other redemption or
exchange  procedures.  (See  "Redemption  of Shares"  below.) Use of these other
redemption or exchange procedures may result in the request being processed at a
later time than if a  telephone  transaction  had been used,  and the Fund's 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 the addition of telephone  services to an existing account or
termination of telephone transaction services will be sent to the shareholder at
the address of record.

REDEMPTION OF SHARES

     A shareholder may redeem shares held in book credit ("uncertificated") form
without charge,  except a CDSL, if applicable,  at any time by SENDING A WRITTEN
REQUEST to Seligman Data Corp.,  P.O. Box 3947, New York, NY  10008-3947;  or if
request is being sent by overnight  delivery  service,  to 100 Park Avenue,  New
York, NY 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 without  charge,  except a CDSL, if applicable by  surrendering
certificates  in proper form to the same  address.  Certificates  should be sent
certified or registered mail,  return receipt is advisable (may increase mailing
time).  Share  certificates  must be endorsed for transfer or  accompanied by an
endorsed stock power signed by the person(s) whose name(s) appear(s) on the face
of the certificate. The shareholder's letter of instruction or en-


                                       17
<PAGE>

dorsed stock power should specify the Fund 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 (i.e., requests to sell shares at
a specific price or on a future date).

     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) or 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 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 of 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%  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 in the case of Class D
shares).  The Fund makes no charge for this  transaction,  but the  unaffiliated
dealer may charge a service fee.  "Sell" or repurchase  orders  received from an
authorized  dealer  before the close of regular  trading on the NYSE  (normally,
4:00 p.m. Eastern Time) 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 fund  account.  Proceeds
will be sent to the address of record. Telephone redemption requests received by
Seligman  Data Corp.  at (800)  221-2450 by the close of regular  trading on the
NYSE  (normally,  4:00 p.m.  Eastern  Time) will be  processed at the Fund's net
asset  value  determined  as of the close of  business  on that day.  Redemption
requests by telephone  will not be accepted  within 30 days following an address
change. IRAs, group retirement plans, corporations and trusts for which the name
of the  current  trustee  does not appear in the  account  registration  are not
eligible for  telephone  redemptions.  The Fund reserves the right to suspend or
terminate its telephone redemption service at any time without notice.



                                       18
<PAGE>

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


     GENERAL.  With respect to shares redeemed,  a check for the proceeds,  less
any applicable CDSL, will be sent to the shareholder's  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.  Payment of redemption  proceeds
will be delayed on redemptions of 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 such shares to the shareholder's account. No
interest is paid on the redemption  proceeds after the redemption but before the
funds are paid.  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  of the Fund  owned by a
shareholder  whose  investment  in the Fund has a value of less  than a  minimum
amount  specified by the Fund's  Board of  Directors,  which is presently  $500.
Shareholders  would be sent a notice before such redemption is processed stating
that the value of the investment in the Fund 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
Class A shares  of the Fund or any 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 Fund
or any of the other  Seligman  Mutual Funds within 120 calendar days of the date
of redemption and receive a credit for the applicable 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 represents a reinstated investment. REINSTATED SHARES
MUST BE  REGISTERED  EXACTLY  AND BE OF THE SAME CLASS AS THE SHARES  PREVIOUSLY
REDEEMED;  AND THE FUND'S MINIMUM INITIAL  INVESTMENT  AMOUNT MUST BE MET AT THE
TIME OF REINSTATEMENT.

     Generally,  exercise  of the  Reinstatement  Privilege  does not  alter the
federal income tax status of any capital gain realized on a sale of Fund shares,
but to the  extent  that any  shares  are sold at a loss  and the  proceeds  are
reinvested  in  shares  of the same  fund,  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 Fund's Administration, Shareholder Services and Distribution Plan
(the "Plan") the Fund may pay to SFSI an  administration,  shareholder  services
and  distribution  fee in  respect  of the  Fund's  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 Fund, (ii)  compensation to Service  Organizations for providing
administration,  accounting and other shareholder  services with respect to Fund
shareholders,  and  (iii)  otherwise  promoting  the sale of shares of the Fund,
including paying for the preparation of advertising and sales literature and the
printing and  distribution  of such  promotional  materials and  prospectuses to
prospective investors and defraying SFSl's costs incurred in connection with its
marketing  efforts with respect to shares of the Fund. 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 Fund.

     Under the Plan, the Fund  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


                                       19
<PAGE>

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 Directors of the Fund.

     The Plan, as it relates to Class A shares, was approved by the Directors on
March 19, 1992 and by the  shareholders of the Fund at a special meeting held on
May 1,1992.  The Plan became effective on June 1,1992. The total amount paid for
the year ended  September  30,  1997 in  respect  of the  Fund's  Class A shares
pursuant to the Plan was equal to .22% of the Class A shares'  average daily net
assets.

     Under the Plan, the Fund  reimburses  SFSI for its expenses with respect to
Class B and Class D shares at an annual  rate of up to 1% of the  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 fee of up
to .25% on an annual  basis of the  average  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 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 the  maintenance  of shareholder  accounts) and will initially be
used by SFSI to defray the  expense  of the  payment or 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 of the Fund may be paid from Class B and Class D Plan
fees, respectively, received from the Fund in any other fiscal year.

     The Plan,  as it relates to Class B shares was approved by the Directors on
March 21, 1996 and became  effective  April 22, 1996.  The Plan as it relates to
Class D shares,  was  approved  by the  Directors  on March 18,  1993 and became
effective  May 1, 1993.  The total amount paid for the year ended  September 30,
1997 by the Fund's  Class B and Class D shares  pursuant  to the Plan was 1% per
annum of the average daily net assets of Class B and Class D shares. The Plan is
reviewed by the Directors annually.

     Seligman Services,  Inc. ("SSI"), an affiliate of the Manager, is a limited
purpose  broker/dealer.  SSI acts as a  broker/dealer  of record for shareholder
accounts  that do not have a  designated  broker/dealer  of record and  receives
compensation from the Fund pursuant to the Plan for providing  personal services
and account maintenance to such accounts and other distribution services.

EXCHANGE PRIVILEGE

     A shareholder of the Fund may, without charge,  exchange at net asset value
any part or all of an  investment  in the Fund 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 another Seligman Mutual Fund 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 period for which the original shares were held.

     Class B shareholders  of the Fund  exercising  the exchange  privilege will
continue to be subject to the


                                       20
<PAGE>

Fund's 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 Fund
acquired  by  exchange  will be  subject  to the Fund's  CDSL  schedule  if such
schedule  is higher or longer  than the CDSL  schedule  relating  to the Class B
shares of the fund from which such shares were exchanged.

     The Seligman Mutual Funds available under the Exchange Privilege are:

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

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

     o 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.

     o 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.

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

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

     o SELIGMAN  HIGH INCOME FUND SERIES seeks high current  income by investing
in debt securities. The Fund consists of the Seligman U.S. Government Securities
Series and the Seligman High-Yield Bond Series.

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

     o 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.)

     o  SELIGMAN  MUNICIPAL  SERIES  TRUST  includes  the  Seligman   California
Municipal Quality Series, the Seligman California  Municipal  High-Yield Series,
the Seligman Florida Municipal Series and the Seligman North Carolina  Municipal
Series,  each of which invests in municipal  securities of its designated state.
(Does not currently offer Class B shares.)

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

     o SELIGMAN  PENNSYLVANIA  MUNICIPAL FUND SERIES invests in investment grade
Pennsylvania municipal securities. (Does not currently offer Class B shares.)

     o SELIGMAN VALUE FUND SERIES, INC. consists of the Seligman Large-Cap Value
Fund and the  Seligman  Small-Cap  Value  Fund,  each of which  seeks  long-term
capital  appreciation  by  investing  in equity  securities  of value  companies
primarily located in the U.S.

     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  by the close of regular  trading on the NYSE
(normally, 4:00 p.m. Eastern Time) by Seligman Data Corp. at (800) 221-2450 will
be processed as of the close of business on that day.  Requests  received  after
the close of regular trading on the NYSE (normally, 4:00 p.m. Eastern Time) will
be processed at the net asset values per share calculated the following business
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 

                                       21
<PAGE>

least  the  minimum  initial  investment  required  by the 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 AND AUTOMATIC CASH WITHDRAWAL  SERVICE 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 an 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 offer described  herein may be modified at any time; and not all of the
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 certain  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 FUND

     Because excessive trading (including  short-term,  "market timing" trading)
can hurt the Fund's  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 Fund's  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 GAIN DISTRIBUTIONS

     Dividends  payable  from the  Fund's net  investment  income,  if any,  are
distributed annually.  Payments vary in amount depending on income received from
portfolio   securities  and  the  cost  of  operations.   The  Fund  distributes
substantially  all of any taxable net long-term and short-term  gain realized on
investments to shareholders at least annually; such distributions will generally
be taxable to shareholders in the year in which they are declared by the Fund if
paid before February 1 of the following year.

     Shareholders   may  elect:   (1)  to  receive  both   dividends   and  gain
distributions in shares; (2) to receive dividends in cash and gain distributions
in shares; or (3) to receive both dividends and gain distributions in cash.


                                       22
<PAGE>


     Cash  dividends and gain  distributions  are paid by check.  In the case of
prototype  retirement  plans,  dividends  and  capital  gain  distributions  are
reinvested in additional shares.  Unless another election is made, dividends and
capital  gain  distributions  will  be  credited  to  shareholder   accounts  in
additional  shares of the Fund.  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 gain 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  fee 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,  if any.  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 a mutual  fund for  shares  of  another
Seligman  Mutual Fund 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 dividends or gain distributions  declared and payable
will be paid in cash regardless of the existing election. A transfer or exchange
of  all shares  (closing an account),  between the record date and payable date,
will result in the value of  dividends or gain  distributions  being paid to the
new fund account in  accordance  with the option on the closed  account,  unless
Seligman Data Corp. is instructed otherwise.


FEDERAL INCOME TAXES

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

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


     Distributions  of net  capital  gains  (I.E.,  the excess of net  long-term
capital gains over any net short-term  losses) are taxable as long-term  capital
gain, whether received in cash or invested in additional  shares,  regardless of
how long  shares have been held by a  shareholder.  Such  distributions  are not
eligible for the dividends received deduction allowed to corporate shareholders.
Shareholders receiving  distributions in the form of additional shares issued by
the Fund will be treated for federal  income tax  purposes as having  received a
distribution  in an  amount  equal  to the  fair  market  value  on the  date of
distribution of the shares received.  Individual shareholders will be subject to
federal tax on  distributions of net capital  gains at a maximum  rate of 28% if
designated as derived from the Fund's  capital gains from property held for more
than one year and at a maximum  rate of 20% if  designated  as derived  from the
Fund's capital gains from property held for more than eighteen months.

     Any gain or loss  realized  upon a sale or redemption of shares in the Fund
by a shareholder  who is not a dealer in securities will generally be treated as
a long- term capital gain or loss if the shares have been held for more than one
year and otherwise as a short-term


                                       23
<PAGE>


capital gain or loss. Individual  shareholders will be subject to federal income
tax on net capital  gains at a maximum rate of 28% in respect of shares held for
more than one year and at a maximum  rate of 20% in respect  of shares  held for
more than eighteen months. Net capital gain of a corporate  shareholder is taxed
at the same rate as ordinary  income.  However,  if shares on which a long- term
capital gain  distribution has been received are  subsequently  sold or redeemed
and such shares have been held for six months or less, any loss realized will be
treated as long-term  capital  loss to the extent that it offsets the  long-term
capital gain distribution.  In addition,  no loss will be allowed on the sale or
other  disposition  of shares of the Fund if, within a period  beginning 30 days
before the date of such sale or disposition  and ending 30 days after such date,
the holder acquires (such as through dividend reinvestment)  securities that are
substantially  identical to the shares of the Fund.


     In  determining  gain  or loss on  shares  of the  Fund  that  are  sold or
exchanged within 90 days after acquisition,  a shareholder generally will not be
permitted to include in the tax basis attributable to such shares the sales load
incurred in acquiring such shares to the extent of any  subsequent  reduction of
the sales load by reason of the Exchange or Reinstatement  Privilege  offered by
the Fund. 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 Fund will  generally be subject to an excise tax of 4% on the amount of
any income or capital  gains,  above certain  permitted  levels,  distributed to
shareholders  on a basis  such  that  such  income  or gain  is not  taxable  to
shareholders  in the  calendar  year  in  which  it  was  earned  by  the  Fund.
Furthermore,  dividends  declared in October,  November or December,  payable to
shareholders  of  record  on a  specified  date in such a month  and paid in the
following  January  will be treated as having been paid by the Fund and received
by each shareholder in December. Under this rule, therefore, shareholders may be
taxed in one year on dividends or distributions  actually received in January of
the following year.

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

     UNLESS A SHAREHOLDER  INCLUDES A CERTIFIED TAXPAYER  IDENTIFICATION  NUMBER
(SOCIAL  SECURITY  NUMBER  FOR  INDIVIDUALS)  ON  THE  ACCOUNT  APPLICATION  AND
CERTIFIES THAT THE SHAREHOLDER IS NOT SUBJECT TO BACKUP WITHHOLDING, THE FUND IS
REQUIRED TO WITHHOLD AND REMIT TO THE 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 GAIN 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 Fund. General
information   about  the  Fund  may  be  requested  by  writing  the   Corporate
Communications/Investor   Relations   Department,   J.  &  W.   Seligman  &  Co.
Incorporated,  100 Park Avenue,  New York, NY 10017 or telephoning the Corporate
Communications/Investor Relations Department toll-free by dialing (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 a shareholder
account (other than a retirement plan account),  may be requested by writing the
Shareholder Services  Department,  Seligman Data Corp. at the same address or by
toll-free  telephone  by dialing  (800)  221-2450  from all  continental  United
States, or (212) 682-7600 outside the continental United States. For information
about a retirement  account,  call Pension  Plan  Services  toll-free by dialing
(800)  445-1777 or write  Pension  Plan  Services,  Seligman  Data Corp.  at the
address above. Seligman Data Corp. may be telephoned Monday

                                       24
<PAGE>

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
AND FORM  1099-DIV CAN 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. Special investor services are available. These include:


     o INVEST-A-CHECK(R)  SERVICE enables a shareholder to authorize  additional
purchases of shares automatically by electronic funds transfer from a savings oR
checking  account  if the bank that  maintains  the  account  is a member of the
Automated Clearing House ("ACH"), or by preauthorized  checks to be drawn 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 check for at least
$100 in conjunction with the monthly  investment option, or a check for at least
$250 in conjunction with the quarterly  investment  option. For investments into
the Seligman Time Horizon MatrixSM Asset Allocation Program,  the minimum amount
is $500 at regular monthly intervals or $1,000 at regular  quarterly  intervals.
By  utilizing  the  Invest-A-Check  Service to  establish  an  account,  you are
agreeing to continue the service until the Fund's minimum  investment  amount is
met.  If you elect to cancel the  service  prior to meeting  the  minimum,  your
account may be subject to closure. (See "Terms and Conditions.")


     o AUTOMATIC DOLLAR-COST-AVERAGING SERVICE permits a shareholder of 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. For exchanges into the Seligman Time Horizon
MatrixSM Asset Allocation Program, the minimum amount is $500 at regular monthly
intervals  or $1,000 at regular  quarterly  intervals.  The  shareholder's  Cash
Management  Fund  account  must  have a dollar  value of at least  $5,000 at the
initiation  of the  service  and all  shares  must  be in  "book  credit"  form.
Exchanges will be made at the public offering price.


     o 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 Fund or  another  Seligman  Mutual  Fund.  (Dividend  checks  must
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.) If the dividends are to
be invested in a new fund account,  the first  investment must meet the required
minimum purchase amount for such fund.


     o 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.

     o AUTOMATIC CASH WITHDRAWAL  SERVICE  permits  payments in fixed amounts of
$50 or more  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 may be subject to a 1% CDSL if made
within eighteen months of purchase of such shares.  Holders of Class B and Class
D shares may elect to use this service immediately, although certain withdrawals
may be subject to CDSL. (See "Terms and Conditions.")


                                       25
<PAGE>


     o 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 be  directed  only to shares of the same  class of  another  Seligman
Mutual Fund.

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

     o 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 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 Fund 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);

     --Savings Incentive Match Plans for Employees (Simple 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

     --Money Purchase Pension and Profit Sharing Plans for sole proprietorships,
corporations and partnerships.

     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 FUND'S PERFORMANCE

     From time to time the Fund  advertises  its  "total  return"  and  "average
annual total return," each of which is 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 "total  return"  shows what an
investment  in shares of Class A,  Class B and  Class D of the Fund  would  have
earned  over a specified  period of time (for  example,  one,  five and ten year
periods or since  inception)  assuming the payment of the maximum sales load, if
any (or CDSL upon redemption,  if applicable),  when the investment was made and
that all  distributions  and dividends  paid by the Fund 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 year periods
or since inception); I.E., the average annual compound rate of return. The total
return and average  annual  total  return of Class A shares  quoted from time to
time including  periods through June 1,1992, do not reflect the deduction of the
administration,  shareholder  services and distribution  fee, which if reflected
would reduce the performance  quoted. The total return and average annual return
quoted from time to time for both Class A and Class D shares for  periods  prior
to January 1, 1996 do not reflect the increase in the  management fee payable by
the Fund effective on such date, which if reflected would reduce the performance
quoted.  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 Fund's Class A, Class B and Class D shares,  the Lipper analysis  assumes
investment  of all  dividends  and  distributions  paid but  does not take  into
account applicable sales loads. The Fund may also refer in advertisements



                                       26
<PAGE>

or in other promotional material to articles,  comments, listings and columns in
the  financial  press  pertaining  to the Fund's  performance.  Examples of such
financial and other press  publications  include  BARRON'S,  BUSINESS WEEK, CDA/
WIESENBERGER   MUTUAL  FUNDS  INVESTMENT  REPORT,   CHRISTIAN  SCIENCE  MONITOR,
FINANCIAL  PLANNING,   FINANCIAL  TIMES,   FINANCIAL  WORLD,  FORBES,   FORTUNE,
INDIVIDUAL INVESTOR,  INVESTMENT ADVISOR, INVESTORS BUSINESS DAILY, KIPLINGER'S,
LOS ANGELES TIMES, MONEY MAGAZINE,  MORNINGSTAR,  INC., PENSION AND INVESTMENTS,
SMART MONEY, THE NEW YORK TIMES, THE WALL STREET JOURNAL,  USA TODAY,  U.S. NEWS
AND WORLD REPORT, WORTH MAGAZINE, WASHINGTON POST AND YOUR MONEY.

ORGANIZATION AND CAPITALIZATION

     The Fund is an open-end  investment company  incorporated under the laws of
the  state  of  Maryland  on July 9,  1984.  The  Fund is  authorized  to  issue
500,000,000 shares of capital stock, each with a par value of $0.10 divided into
three  classes.  Each  share of the  Fund's  Class A, Class B and Class D common
stock is equal as to earnings,  assets and voting  privileges,  except that each
class bears its own separate distribution and, potentially,  certain other class
expenses and has  exclusive  voting rights with respect to any matter to which a
separate vote of any class is required by the 1940 Act or Maryland law. The Fund
has adopted a plan (the "Multiclass Plan") pursuant to Rule 18f-3 under the 1940
Act  permitting  the issuance and sale of multiple  classes of common stock.  In
accordance  with the  Articles  of  Incorporation,  the Board of  Directors  may
authorize  the  creation  of  additional  classes  of  common  stock  with  such
characteristics as are permitted by the Multiclass Plan and Rule 18f-3. The 1940
Act requires that where more than one class exists, each class must be preferred
over all other  classes  in  respect of assets  specifically  allocated  to such
class.  All  shares  have  noncumulative  voting  rights  for  the  election  of
directors. Each outstanding share is fully paid and non-assessable,  and each is
freely transferable. There are no liquidation, conversion or preemptive rights.


                                       27
<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 in  payment  of a  purchase  of shares  is  dishonored  for any  reason,
Seligman Data Corp. will cancel the purchase and may 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 notice to Seligman  Data
Corp.  These option  changes 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.  Stock  certificates  will  not  be  issued,  unless
requested.   Replacement  stock  certificates  and  certain  waiver  of  probate
procedures 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 invested in the shareholder's  account 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 close of business on the same date.  By utilizing
the  Invest-A-Check(R)  Service to  establish  an account,  you are  agreeing to
continue the Service until the Fund's minimuM  investment  amount is met. If you
elect to cancel the service  prior to meeting the  minimum,  your account may be
subject to closure. If an ACH debit or preauthorized 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  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 will 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 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  check  for at  least  $100 in  connection  with  the  monthly
investment  option or a check for at least $250 in connection with the quarterly
investment option. If the shareholder uses the Invest-A-Check(R) Service to make
an IRA or group retirement plan  investment,  the purchase will be credited as a
current year contribution.


                        AUTOMATIC CASH WITHDRAWAL SERVICE

     A  sufficient  number of full and  fractional  shares  will be  redeemed to
provide the amount  required for a scheduled  payment and any  applicable  CDSL.
Redemptions  will be made at the  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 or Class D shares, any applicable CDSL.  Automatic withdrawal of
Class A shares  which were  purchased  at net asset value  because the  purchase
amount was  $1,000,000 or more may be subject to a CDSL if made within 18 months
of purchase of such shares. Under this Service, a Class B or Class D shareholder
who requests both dividends and capital gain  distributions in additional shares
may withdraw up to 12%, or 10%, respectively,  of the value of the Shareholder's
fund account (at the time of election)  per annum,  without the  imposition of a
CDSL.  A minimum  payment  amount of $50 per cycle is needed to  establish  this
Service.  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.  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  to you because of the payment of  duplicative  sales loads,  if
applicable. For this reason, additional purchases of Fund 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  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
applicable.  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 the shareholder's 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  mutual  fund in the  Seligman  Group on which
there is a front-end 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.

                                                                            2/98


                                       28
<PAGE>


SELIGMAN
FRONTIER
FUND, INC.

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

100 Park Avenue
New York, New York 10017

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

GENERAL DISTRIBUTOR
Seligman Financial Services, Inc.
100 Park Avenue
New York, New York 10017

SHAREHOLDER SERVICE AGENT
Seligman Data Corp.
100 Park Avenue
New York, New York 10017

PORTFOLIO SECURITIES CUSTODIAN
Investors Fiduciary Trust Company
801 Pennsylvania
Kansas City, Missouri 64105

GENERAL COUNSEL
Sullivan & Cromwell
125 Broad Street
New York, New York 10004



EQFR1 2/98



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