SELIGMAN COMMUNICATIONS & INFORMATION FUND INC
485BPOS, 1998-04-29
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                                                               File No. 2-80168
                                                                       811-3596

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

                                    FORM N-1A
   
         REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933             [X]

              Pre-Effective Amendment No. __                                 [ ]


              Post-Effective Amendment No.  19                               [X]

                                              
         REGISTRATION STATEMENT UNDER THE INVESTMENT COMPANY ACT OF 1940     [X]


              Amendment No.  19                                              [X]
    


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

               SELIGMAN COMMUNICATIONS AND INFORMATION FUND, INC.
               (Exact name of registrant as specified in charter)
- --------------------------------------------------------------------------------

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

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

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

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

   
[X] immediately upon filing pursuant to paragraph    (b)
    

[ ] on    (DATE)   pursuant to paragraph (b)

[ ] 60 days after filing pursuant to paragraph (a)(1)

[ ] on (date) pursuant to paragraph (a)(1)

[ ] 75 days after filing pursuant to paragraph (a)(2)

[ ] on (date) pursuant to paragraph (a)(2) of rule 485.

If appropriate, check the following box:

[ ]  This  post-effective  amendment  designates  a  new  effective  date  for a
     previously filed post-effective amendment.

   
Registrant  has  registered  an  indefinite   amount  of  securities  under  the
Securities Act of 1933 pursuant to Rule  24f-2(a)(1) and a Rule 24f-2 Notice for
Registrant's  most recent fiscal year was filed with the Commission on March 27,
1998.
    

<PAGE>

                                                               File No. 2-80168
                                                                       811-3596
<TABLE>
<CAPTION>
   
               SELIGMAN COMMUNICATIONS AND INFORMATION FUND, INC.
                         FORM N-1A CROSS REFERENCE SHEET
                         POST-EFFECTIVE AMENDMENT NO. 19
                             Pursuant To Rule 481(a)
                             -----------------------
    

Item In Part A Of Form N-1a                       Location In Prospectus
- ---------------------------                       ----------------------
<S>                                               <C>

1.    Cover Page                                  Cover Page

2.    Synopsis                                    Summary of Fund Expenses

3.    Condensed Financial Information             Financial Highlights

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

5.    Management of the Fund                      Management Services

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

6.    Capital Stock and Other Securities          Organization and Capitalization

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

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

9.    Pending Legal Proceedings                   Not Applicable

Item In Part B Of Form N-1a                       Location In Statement Of Additional Information
- ---------------------------                       -----------------------------------------------
10.   Cover Page                                  Cover Page

11.   Table of Contents                           Table of Contents

12.   General Information and History             General   Information;   Organization  and  Capitalization   (Prospectus);
                                                  Appendix

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

14.   Management of the Registrant                Management And Expenses

15.   Control Persons and Principal               Directors and Officers
      Holders of Securities

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

17.   Brokerage Allocation                        Portfolio   Transactions;   Administration,   Shareholder   Services   and
                                                  Distribution Plan

18.   Capital Stock and Other Securities          General Information; Organization and Capitalization (Prospectus)

19.   Purchase, Redemption and Pricing            Purchase and Redemption of Fund Shares; Valuation
      of Securities being offered

20.   Tax Status                                  Federal Income Taxes (Prospectus)

21.   Underwriters                                Distribution Services

22.   Calculation of Performance Data             Performance

23.   Financial Statements                        Financial Statements
</TABLE>


<PAGE>


SELIGMAN
- ---------------
 COMMUNICATIONS 
AND INFORMATION 
     FUND, INC.

                                   [GRAPHIC]


                                   PROSPECTUS

   
                                   MAY 1, 1998
    
       
                                     -------

                                        A

                                  Capital Gain

                                      Fund

                                     In Its
   
                                    16th Year
    




                                   [GRAPHIC]

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


<PAGE>

TABLE OF CONTENTS

Summary of Fund Expenses   2

Financial Highlights   3

Alternative Distribution System   5

Investment Objective, Policies and Risks   7

Management Services   10

Purchase of Shares  11

Telephone Transactions   17

Redemption of Shares   19

Administration, Shareholder Services 
  and Distribution Plan   21

Exchange Privilege  22

Further Information about
  Transactions in the Fund   24
   
Dividends and Capital Gain Distributions   24
    
Federal Income Taxes   25

Shareholder Information   27

Advertising the Fund's Performance   28

Organization and Capitalization   29


TIMES CHANGE ... VALUES ENDURE

<PAGE>

                           SELIGMAN COMMUNICATIONS AND
                             INFORMATION FUND, INC.

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

   
                                                                     May 1, 1998
    

     Seligman Communications and Information Fund, Inc. (the "Fund") is a mutual
fund which  invests to produce  capital  gain.  The Fund  invests  primarily  in
securities  of  companies  in  the   communications,   information  and  related
industries. Investment advisory and management services are provided to the Fund
by J. & W. Seligman & Co.  Incorporated (the "Manager").  The Fund's distributor
is Seligman  Financial  Services,  Inc.,  an  affiliate  of the  Manager.  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.  

   
     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 eighteen 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 Class B or Class D 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 gain  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 and without charge by calling or writing the Fund at the
telephone  numbers or the address set forth above.  The  Statement of Additional
Information is dated the same date as this Prospectus and is incorporated herein
by reference in its entirety. 

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

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

<PAGE>

<TABLE>
<CAPTION>
                                                   SUMMARY OF FUND EXPENSES

                                                                CLASS A               CLASS B                   CLASS D
                                                           ----------------      ----------------          ----------------
                                                            (INITIAL SALES        (DEFERRED SALES           (DEFERRED SALES
                                                           LOAD ALTERNATIVE)     LOAD ALTERNATIVE)         LOAD ALTERNATIVE)
<S>                                                              <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 (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 load        4th years
                                                          was waived in full      2% in 5th year
                                                            due to size of        1% in 6th year
                                                               purchase           None thereafter
  Redemption Fees.............................................   None                  None                      None
  Exchange Fees...............................................   None                  None                      None


   
                                                                CLASS A               CLASS B                   CLASS D
                                                               --------              --------                  --------
ANNUAL FUND OPERATING EXPENSES FOR 1997
(as a percentage of average net assets)
  Management Fees.............................................    .89%                  .89%                      .89%
  12b-1 Fees..................................................    .25%                 1.00%*                    1.00%*
  Other Expenses .............................................    .39%                  .39%                      .39%
                                                                 -----                 -----                     -----
  Total Fund Operating Expenses...............................   1.53%                 2.28%                     2.28%
                                                                 =====                 =====                     =====
</TABLE>
    

     The  purpose  of this table is to assist  investors  in  understanding  the
various  costs and  expenses  which  shareholders  of the Fund 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        $ 94        $127        $221
                                                              Class B+         73         101         142         243
                                                              Class D          33          71         122         262

An investor would pay the following expenses on the same 
  investment, assuming no redemption..........................Class A         $62         $94        $127        $221
                                                              Class B+         23          71         122         243
                                                              Class D          23          71         122         262
</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 financial highlights for the Fund's Class A, Class B and Class D shares
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 free of charge 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,  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 Fund shares at net asset value as of the beginning
of the period,  invested dividends and capital gains paid at net asset value and
then sold their  shares at the net asset  value 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  commission paid by
the Fund to purchase or sell portfolio 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 December 31,
                                 ------------------------------------------------------------------------------------------------
                                     1997o      1996o        1995o     1994o     1993     1992     1991   1990     1989      1988
                                    -----      -----        -----     -----     -----    -----    -----  -----    -----     -----
<S>                                <C>        <C>          <C>       <C>       <C>      <C>      <C>     <C>      <C>      <C>   
PER SHARE OPERATING PERFORMANCE:
Net asset value,
  beginning of year ..........     $23.51     $21.99       $16.64    $13.43   $12.30   $11.57   $ 8.87   $10.11   $10.07   $10.19
                                    -----      -----        -----     -----    -----    -----   ------    -----    -----    -----
Net investment income (loss) .      (0.33)      (.26)        (.33)     (.19)    (.14)    (.12)    (.12)    (.08)    (.05)     .01
Net realized and unrealized
  investment gain (loss) .....       6.01       2.84         7.59      4.86     4.37     2.09     4.87    (1.04)    3.00      .72
                                    -----      -----        -----     -----    -----    -----   ------    -----    -----    -----
Increase (decrease) 
  from investment
  operations .................       5.68       2.58         7.26      4.67     4.23     1.97     4.75    (1.12)    2.95      .73
Distributions from
  net gain realized ..........      (5.94)     (1.06)       (1.91)    (1.46)   (3.10)   (1.24)   (2.05)    (.12)   (2.91)    (.85)
                                    -----      -----        -----     -----    -----    -----    -----    -----    -----    -----
Net increase
  (decrease) in net
  asset value ................      (0.26)      1.52         5.35      3.21     1.13      .73     2.70    (1.24)     .04     (.12)
                                    -----      -----        -----     -----    -----    -----    -----    -----    -----    -----
Net asset value, end
  of year ....................     $23.25     $23.51       $21.99    $16.64   $13.43   $12.30   $11.57   $ 8.87   $10.11   $10.07
                                    =====      =====        =====     =====    =====    =====    =====    =====    =====    =====
TOTAL RETURN BASED
  ON NET ASSET VALUE: ........      22.95%     11.94%       43.39%    35.30%   35.13%   17.31%   54.91% (11.07)%   30.12%    7.33%
RATIOS/SUPPLEMENTAL DATA:
Expenses to average
  net assets .................       1.53%      1.68%        1.61%     1.65%    1.63%    1.51%    1.69%    1.67%    1.48%    1.60%
Net investment
  income (loss)
  to average net
  assets .....................     (1.21)%    (1.16)%      (1.31)%   (1.27)%  (1.39)%  (1.18)%  (1.23)%   (.83)%   (.44)%     .11%
Portfolio turnover ...........     164.57%    121.32%       65.77%   104.08%  137.10%  110.42%  107.72%   85.56%  123.16%  116.86%
Average commission
  rate paid ..................      $.0544      $.0531
Net assets, end of
  year (000s omitted) ........  $3,107,481  $2,414,672  $1,940,693  $307,542  $92,987  $57,001  $50,175  $35,292  $42,200  $38,675
    
</TABLE>

   
- ----------------------
   o Per share  amounts for the years ended  December 31, 1997,  1996,  1995 and
     1994, are calculated based on average shares outstanding.


     The data provided above reflects  historical  information and therefore has
not been  adjusted to reflect (i) through  December 31, 1992,  the effect of the
Administration, Shareholder Services and Distribution Plan which was approved by
shareholders  on November  23, 1992 and became  effective on January 1, 1993 and
(ii) through  February 7, 1996, the effect of the increase in the management fee
rate payable by the Fund, which was approved by shareholders on February 7, 1996
and became effective on February 8, 1996.
    

                                       3
<PAGE>
                        FINANCIAL HIGHLIGHTS (continued)

<TABLE>
<CAPTION>
   
                                            CLASS B                                     CLASS D
                                     ---------------------   ----------------------------------------------------------
                                       YEAR       4/22/96*               YEAR ENDED DECEMBER 31,                5/3/93*
                                       ENDED        TO       -----------------------------------------------       TO
                                     12/31/97o   12/31/96o       1997o       1996o       1995o        1994o     12/31/93
                                     --------    --------       -----       -----       -----        -----     --------
<S>                                  <C>          <C>         <C>         <C>          <C>         <C>          <C>   
PER SHARE OPERATING PERFORMANCE:
Net asset value,
  beginning of period ............   $22.62       $21.51      $22.61      $21.35       $16.31      $13.32       $12.24
                                      -----       -----        -----       -----        -----       -----       ------
Net investment loss ..............    (0.50)        (.28)      (0.50)       (.40)        (.50)       (.33)        (.05)
Net realized and
  unrealized
  investment gain ................     5.76         2.45        5.74        2.72         7.45        4.78         4.23
                                      -----       -----        -----       -----        -----       -----       ------
Increase from
  investment
  operations .....................     5.26         2.17        5.24        2.32         6.95        4.45         4.18
Distributions from
  net gain realized ..............    (5.94)       (1.06)      (5.94)      (1.06)       (1.91)      (1.46)       (3.10)
                                      -----       -----        -----       -----        -----       -----       ------
Net increase
  (decrease) in net
  asset value ....................    (0.68)        1.11       (0.70)       1.26         5.04        2.99         1.08
                                      -----       -----        -----       -----        -----       -----       ------
Net asset value, end
  of period ......................   $21.94       $22.62      $21.91      $22.61       $21.35      $16.31       $13.32
                                      =====       =====        =====       =====        =====       =====       ======
TOTAL RETURN BASED
  ON NET ASSET VALUE: ............    21.96%       10.30%      21.86%      11.07%       42.37%      33.94%       34.89%
RATIOS/SUPPLEMENTAL
  DATA:
Expenses to average
  net assets .....................     2.28%        2.44%+      2.28%       2.43%        2.37%       2.50%        2.56%+
Net investment loss
  to average net
  assets .........................   (1.96)%      (1.96)%+    (1.96)%     (1.91)%      (2.07)%     (2.20)%      (2.33)%+
Portfolio turnover ...............   164.57%      121.32%++   164.57%     121.32%       65.77%     104.08%      137.10%+++
Average commission
  rate paid ......................    $.0544       $.0531++    $.0544      $.0531
Net assets, end of
  period (000s
  omitted) .......................  $505,342     $120,848    $945,368    $737,979     $609,332     $96,100       $7,833
</TABLE>

- ----------------------
   * Commencement of offering of shares.
   o Per share amounts for the periods ended December 31, 1997,  1996,  1995 and
     1994, are calculated based on average shares outstanding.
   + Annualized.
  ++ For the year ended December 31, 1996.
 +++ For the year ended December 31, 1993.

     The data  provided  above  reflects  historical  information  and therefore
through  February  7, 1996,  has not been  adjusted to reflect the effect of the
increase in the management  fee rate payable by the Fund,  which was approved by
shareholders on February 7, 1996 and became effective on February 8, 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 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 ongoing 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 distribution fees on Class B and Class D shares will
be offset to the extent any return is realized on the additional funds initially
invested  therein that would have been equal to the amount of the initial  sales
load on Class A shares.

     Investors who qualify for reduced  initial sales loads,  as described under
"Purchase of Shares" below, might also choose to purchase Class A shares because
the 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 was  $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.


                                       5
<PAGE>

     Investors  should  understand  that the purpose and function of the initial
sales loads (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 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 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 of each class.
Class B and Class D shares bear higher  distribution  fees, which will cause the
Class B and Class D shares to pay lower  dividends than the Class A shares.  The
three classes also have separate exchange privileges.

     The  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 forgo
the Class B automatic  conversion  feature,  making their investment  subject to
higher  distribution  fees for an  indefinite  period  of time.  Each  class has
advantages  and  disadvantages  for different  investors,  and investors  should
choose the class that best suits their circumstances and their objectives.


                                       6
<PAGE>

                            ANNUAL 12B-1 FEES
         INITIAL            (AS A % OF AVERAGE
         SALES LOAD         DAILY NET ASSETS)         OTHER INFORMATION
         ----------         -----------------         -----------------
CLASS A  Maximum initial    Service fee of            Initial sales load
         sales load of      .25%.                     waived or reduced
         4.75% of the                                 for certain purchases.
         public offering                              CDSL of 1% on
         price.                                       redemptions within
                                                      eighteen 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%;                     redemptions within
                            Distribution fee          one year of
                            of up to .75%.            purchase.

- ----------------------
   * Conversion  occurs  at  the  end  of  the  month  which  precedes  the  8th
     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.

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 1982.

     The Fund invests to produce capital gain. Income is not an objective.

     Investing for capital gain ordinarily exposes capital to added risk. Shares
of the Fund are  intended  for you only if you are able and willing to take such
risk.  There can be no assurance that the Fund's  investment  objectives will be
attained.

     The Fund  seeks to  achieve  its  objective  by  investing  in a  portfolio
consisting of securities of companies  operating in virtually all aspects of the
communications,  information and related industries.  It invests at least 80% of
its net assets,  exclusive of government securities,  short-term notes, cash and
cash equivalents, in securities of companies engaged in these industries.

     The  communication  and use of  information  using  existing and developing
technologies is increasingly permeating global civilization. Consequently, there
are opportunities for continued growth in demand for components, products, media
and systems to collect, store, retrieve, transmit, process, distribute,  record,
reproduce and put information to use. The pervasive impact of communications and
information upon society is being  accelerated by the blending of computers with
telecommunications  systems, with resulting lower costs and higher efficiencies.
Accordingly, companies engaged in the production of methods for using electronic
technology to  communicate  information  are important in the Fund's  portfolio.
However,   older  technologies  such  as  photography  and  print  may  also  be
represented.   Companies  that   successfully   converge   technologies--medical
databases and computer networks for example--are sought for the portfolio.

     The value of Fund  shares  may be  susceptible  to  factors  affecting  the
communications,  information  and related  industries.  These  industries may be
subject to  greater  governmental  regulation  than many  other  industries  and
changes in governmental  policies and the need for regulatory approvals may have
a material effect on the products and services of these industries.

     Although securities of large companies that now are well established in the
world communications and information market and can be expected to grow with the
market are held in the Fund's portfolio,  rapidly changing  technologies and the
expansion of the  communications,  information and related  industries provide a
favorable  environment  for  investing  in  companies  of small to medium  size.
Securities of smaller,  less seasoned  companies may be subject to greater price
fluctuation, limited liquidity and above-average investment risk.

     The  Fund  invests  primarily  in  common  stocks.  It also may  invest  in
securities  convertible  into or ex-



                                       7
<PAGE>

changeable for common stocks,  in rights and warrants to purchase  common stocks
and in debt securities or preferred stocks believed to provide opportunities for
capital gain.

     It is the Fund's  present  intention  to invest not more than 5% of its net
assets in debt  securities  which are not rated within the four  highest  rating
categories by Standard & Poor's Rating Service or by Moody's Investors  Service,
Inc.

     Securities owned are kept under continuing supervision,  and changes may be
made  whenever such  securities  no longer seem to meet the Fund's  capital gain
objectives.  Neither the length of time a security has been held nor the rate of
turnover of the Fund's  portfolio is  considered  a limiting  factor on changes.
Portfolio turnover may vary with such changes.

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

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

   
     LENDING OF PORTFOLIO SECURITIES.  The Fund may lend portfolio securities to
brokers or dealers,  banks or other institutional  borrowers of securities.  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  an  amount
equivalent  to any dividends or interest  paid on the  securities.  The Fund may
invest the cash collateral and earn  additional  income or may receive an agreed
upon amount of interest income from the borrower.
    

     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  in other
securities of foreign issuers directly or through American  Depositary  Receipts
("ADRs"),  European  Depositary  Receipts ("EDRs") or Global Depositary Receipts
("GDRs") (collectively, "Depositary Receipts").

     Foreign  investments may be affected favorably or unfavorably by changes in
currency rates and exchange control  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 



                                       8
<PAGE>

   
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 in the United  States.  Investments  in foreign
securities may also be subject to local economic or political  risks,  political
instability and possible  nationalization  of issuers.  Depositary  Receipts are
instruments generally issued by domestic banks or trust companies that represent
the deposits of a security of a foreign  issuer.  ADRs may be publicly traded on
exchanges or over-the-counter in the United States and are quoted and settled in
dollars at a price that  generally  reflects the dollar  equivalent  of the home
country  share price.  EDRs are typically  traded in Europe.  GDRs are typically
traded in both Europe and the United States.  Depositary  Receipts may be issued
under sponsored or unsponsored programs.  In sponsored programs,  the issuer has
made  arrangements  to have its  securities  traded in the form of a  Depositary
Receipt.  In unsponsored  programs,  the issuers may not be directly involved in
the creation of the program.  Although  regulatory  requirements with respect to
sponsored and unsponsored Depositary Receipt programs are generally similar, the
issuers of securities  represented  by unsponsored  Depositary  Receipts are not
obligated to disclose material  information in the United States, and therefore,
the import of such  information may not be reflected in the market value of such
receipts.  The  Fund  may  invest  up to 10%  of its  total  assets  in  foreign
securities that it holds directly,  but this 10% limit does not apply to foreign
securities  held  through  Depositary  Receipts  which are  traded in the United
States or to  commercial  paper and  certificates  of deposit  issued by foreign
banks.
    

     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 Fund's Board of Directors may change such policies  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 capital gain 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.  

   
     YEAR 2000 RISKS.  The Fund is dependent  upon service  providers  and their
computer systems for its day-to-day  operations,  and many of the Fund's service
providers in turn depend upon computer  systems of other persons.  Many computer
systems   currently   cannot  properly   recognize  or  process  date  sensitive
information  relating  to the  year  2000  and  beyond.  The  Manager,  Seligman
Financial  Services,  Inc., and the Fund's  custodian  have been  evaluating the
impact the year 2000 issue may have on their computer systems.  They expect that
any  modifications to their computer systems  necessary to address the year 2000
issue will be made and tested in a timely  manner.  They are also  working  with
vendors  and  other  persons  whose  systems  are  linked  to  theirs  to obtain
satisfactory  assurances  regarding  the year 2000 issue.  Seligman  Data Corp.,
which provides certain corporate and shareholder account 
    



                                       9
<PAGE>

   
services to the Fund at cost, has informed the Fund that it does not expect that
the cost to the Fund of its services will increase materially as a result of the
modifications  to its computer  systems  necessary to prepare for the year 2000.
The costs of systems  remediation by persons other than Seligman Data Corp. will
not be borne  directly by the Fund.  There can be no assurance that the remedial
actions  taken by the Fund's  service  providers  will be  sufficient or timely.
Inadequate  remediation  could have an adverse effect on the Fund's  operations,
including  pricing and securities  trading and settlement,  and the provision of
shareholder services.
    


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,  comprise the "Seligman  Group." These companies
are: Seligman Capital Fund, Inc.,  Seligman Cash Management Fund, Inc., Seligman
Common Stock Fund, Inc.,  Seligman  Frontier Fund,  Inc.,  Seligman Growth Fund,
Inc.,  Seligman  Henderson Global Fund Series,  Inc.,  Seligman High Income Fund
Series,  Seligman  Income Fund,  Inc.,  Seligman  Municipal  Fund Series,  Inc.,
Seligman  Municipal  Series Trust,  Seligman New Jersey  Municipal  Fund,  Inc.,
Seligman Pennsylvania Municipal Fund Series, Seligman Portfolios, Inc., Seligman
Quality  Municipal Fund, Inc.,  Seligman Select  Municipal Fund, Inc.,  Seligman
Value Fund Series, Inc., and Tri-Continental  Corporation.  The aggregate assets
of the Seligman  Group were  approximately  $20.2 billion at March 31, 1998. The
Manager also provides investment management or advice to institutional and other
accounts  having an  aggregate  value at March 31,  1998 of  approximately  $7.4
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 other  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 Manager is entitled to receive a management fee,  calculated  daily and
payable  monthly.  The  management  fee, which was approved by  shareholders  on
February 7, 1996 and became effective on February 8, 1996, is equal to an annual
rate of .90% of the Fund's  average  daily net assets on the first $3 billion of
net assets,  .85% of the Fund's  average daily net assets on the next $3 billion
of net assets and .75% of the  Fund's  average  daily net assets in excess of $6
billion.  For the year ended  December 31, 1997,  the management fee paid by the
Fund was equal to .89% of the Fund's average daily net assets.

   
     The Fund pays all 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 December 31, 1997 amounted to 1.53%, 2.28% and 2.28%, respectively, of the
average daily net assets of such class.

     Prior to March 30, 1998,  the Manager was party to a Subadvisory  Agreement
with Seligman  Henderson Co. pursuant to which Seligman  Henderson Co. agreed to
provide investment advisory services to the Fund in respect of foreign assets to
the extent  requested  by the Manager.  No such advice was ever  provided and on
March 30, 1998,  the  Subadvisory  Agreement  terminated in accordance  with its
terms.  The  Manager  has no  present  plans to enter into  similar  subadvisory
arrangements in respect of the Fund.
    

     PORTFOLIO MANAGEMENT. Paul H. Wick, a Director and Managing Director of the
Manager,  is Vice President and Portfolio Manager of the Fund and Vice President
of Seligman  Portfolios,  Inc.  ("SPI") and Port-



                                       10
<PAGE>

folio Manager of SPI's Seligman  Communications  and  Information  Portfolio and
Co-Portfolio  Manager of SPI's Seligman  Henderson Global Technology  Portfolio.
Mr. Wick is also a Vice President of Seligman Henderson Global Fund Series Inc.,
and Co-Portfolio  Manager of its Seligman  Henderson Global Technology Fund. Mr.
Wick became  Portfolio  Manager of the Fund on January 18, 1990. Mr. Wick joined
the Manager in 1987 as an  Associate,  Investment  Research.  He was promoted to
Managing Director on January 1, 1995 and elected Director in November, 1997.
       

   
     The Manager's  discussion of the Fund's performance as well as a line graph
illustrating  comparative performance information between the Fund, the Standard
& Poor's 500 Composite  Stock Price Index and the Lipper  Science and Technology
Funds  Average 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  recognizes that in the
purchase  and sale of  portfolio  securities,  the  Manager  will  seek the most
favorable  price and  execution,  and,  consistent  with that  policy,  may give
consideration  to the  research,  statistical  and other  services  furnished by
brokers or dealers to the Manager. The use of brokers who provide investment and
market  research  and  securities  and  economic  analysis  may result in higher
brokerage  charges  than the use of  brokers  selected  on the basis of the most
favorable  brokerage  commission rates and research and analysis received may be
useful to the Manager in  connection  with its 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 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"  which  may  result in the  payment  by the Fund of dealer
spreads or underwriting  commissions and other  transaction costs on the sale of
securities as well as on the  reinvestment of the proceeds in other  securities.
High portfolio turnover involves  correspondingly greater transactions costs and
a possible  increase in short-term  capital gains or losses.  Although it is the
policy of the Fund to hold securities for investment,  changes in the securities
held 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% and has done so in prior years.
    


PURCHASE OF SHARES

     Seligman Financial  Services,  Inc. ("SFSI"),  an affiliate of the Manager,
acts as  general  distributor  of the  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
determined  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 
    



                                       11
<PAGE>

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 $2,500; SUBSEQUENT
INVESTMENTS  MUST BE IN THE MINIMUM  AMOUNT OF $100  (EXCEPT FOR  INVESTMENT  OF
DIVIDENDS AND CAPITAL GAIN DISTRIBUTIONS). THE FUND RESERVES THE RIGHT TO RETURN
INVESTMENTS  WHICH DO NOT MEET THESE MINIMUMS.  EXCEPTIONS TO THESE MINIMUMS ARE
AVAILABLE FOR ACCOUNTS BEING ESTABLISHED CONCURRENTLY WITH THE INVEST-A-CHECK(R)
SERVICE.  THE  MINIMUM  AMOUNT  FOR  INITIAL  INVESTMENT  IN THE  SELIGMAN  TIME
HORIZONSM  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 or 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 less than $250,000.

     Orders received by an authorized dealer before 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 accepted by dealers after the close of
regular  trading on the NYSE,  or received 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  SFSI's  order desk and
assigned a purchase  confirmation  number.  Funds in payment of the purchase may
then be wired to Mellon Bank, N.A., ABA #043000261,  A/C Seligman Communications
& Information Fund, Inc. (A, B or D), A/C #1071011.  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 purchase additional shares of the Fund at any time
through any  authorized  dealer or by sending a check  payable to the  "Seligman
Group of Funds," in a postage-paid  return envelope or directly to P.O. BOX 9766
PROVIDENCE,  RI 02940-9766.  Checks for investment must be in U.S. dollars drawn
on a domestic  bank.  The check  should be  accompanied  by an  investment  slip
(provided  at the bottom of  shareholder  account  statements)  and  include the
shareholder's  name,  address,  account number, name of Fund and class of shares
(A, B or D). Checks sent  directly to Seligman  Data Corp.  and received in good
order will be invested 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.

     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  FOR  NEW  ACCOUNTS,   OR  IN  THE
SHAREHOLDER'S  EXISTING CLASS FOR ADDITIONAL PURCHASES.  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.

     Seligman Data Corp. may charge a $10.00 service fee for checks  returned to
it as uncollectable. This charge may be deducted from the shareholder's account.
For the protection of the Fund and its shareholders, no redemp-
    



                                       12
<PAGE>

   
tion proceeds will be remitted to a shareholder with respect to shares purchased
by check (unless  certified) until Seligman Data Corp.  receives notice that the
check has  cleared,  which may be up to 15 days from the credit of the shares to
the shareholder's account.

     Current  shareholders may also purchase  additional  shares by having funds
electronically  transferred  directly  from an employer,  the  Internal  Revenue
Service or other government  agency, or any institution  capable of transmitting
payments through the Automated Clearing House ("ACH") network.  Purchases may be
one-time  transactions,  or, for those  institutions  that offer direct  deposit
programs,  may be made on a  systematic  basis.  To utilize  this  service,  the
following bank information must be provided to the paying institution:


                                Mellon Bank, N.A.
                             ABA #043000261 A/C No.
                                600FFFNNNNNNNNNN

     "600"  IDENTIFIES  THE  SELIGMAN  GROUP OF  FUNDS,  "FFF" IS THE FUND  CODE
REPRESENTING  THE FUND AND CLASS OF SHARES IN WHICH THE PURCHASE  SHOULD BE MADE
(this code is available on the back of all shareholder account statements),  AND
"NNNNNNNNNN" INDICATES THE SHAREHOLDER'S  TEN-DIGIT ACCOUNT NUMBER. In addition,
the  shareholder  must indicate that this is a checking  account at Mellon Bank.
For  IRA  and  group  retirement  accounts,  all  electronic  purchases  will be
designated  as  current  year  contributions.  For more  information  about this
service, please contact Seligman Data Corp.

     VALUATION. The net asset value of the Fund's shares is determined each day,
Monday through Friday, as of the close of regular trading on the NYSE (normally,
4:00  p.m.  Eastern  time) on each day that the NYSE is open for  business.  Net
asset value is calculated separately for each class. Securities traded on a U.S.
or  foreign  exchange  or  over-the-counter  market are valued at the last sales
price on the primary exchange or market on which they are traded. United Kingdom
securities and securities for which there are no recent sales  transactions  are
valued based on quotations provided by primary market makers in such securities.
Short-term  holdings  maturing  in 60 days  or  less  are  generally  valued  at
amortized  cost if  their  original  maturity  was 60 days or  less.  Short-term
holdings with more than 60 days  remaining to maturity will be valued at current
market value until the 61st day prior to maturity, and will then be valued on an
amortized  cost  basis  based on the  value as of such  date  unless  the  Board
determines  that amortized cost value does not represent fair market value.  Any
securities  for which recent  market  quotations  are not readily  available are
valued at fair value  determined in accordance with  procedures  approved by the
Fund's Board of Directors.
    

     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 values of Class B and
Class D shares  will  generally  be lower  than the net  asset  value of Class A
shares as a result of the higher  distribution fees charged to Class B and Class
D shares.  In addition,  net asset value per share of the three  classes will be
affected to the extent any other expenses differ among classes.

   
     CLASS A  SHARES--INITIAL  SALES  LOAD.  Class A shares  are  subject  to an
initial  sales load which  varies with the size of the  purchase as shown in the
schedule below, 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."
    

- --------------------------------------------------------------------------------
                       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."
- --------------------------------------------------------------------------------

                                       13
<PAGE>
     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 and above.  The calculation of 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  front-end 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.  

     Class A 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 above 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  already  owned that were 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  Funds 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 that 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 the
investor  intends to  purchase,  plus the total net asset value of shares of the
other  Seligman  Mutual Funds already owned that were sold with an initial sales
load and the total net asset value of shares of Seligman  Cash  Management  Fund
that were acquired through an exchange of shares of another Seligman Mutual Fund
on which  there was an initial  sales load.  An investor or a dealer  purchasing
shares on behalf of an investor  must  indicate  that the  investor has existing
accounts when making  investments or opening new accounts.  For more information
concerning terms of Letters of Intent, see "Terms and Conditions."
    

     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  



                                       14
<PAGE>

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 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 solicitations
of, its employees,  members or  participants  in connection with the purchase of
shares of the Fund;  to other  investment  companies  in the  Seligman  Group in
connection  with a  deferred  fee  arrangement  for  outside  directors;  and to
"eligible  employee benefit plans" which have at least (i) $500,000  invested in
the Seligman  Mutual Funds or (ii) 50 eligible  employees to whom such a 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) or other
retirement  alliance  program  the sponsor of which has an  agreement  with SFSI
pursuant to which  shares are made  available at net asset value 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 up to .25% but no  distribution  fee.  Shares  purchased  through
reinvestment  of dividends and  distribution 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 



                                       15
<PAGE>

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 through the 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 the
exchange has been made.

   
     CLASS D SHARES.  Class D shares are sold without an initial  sales load but
are subject to a 1% 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 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 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 Organization (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 assign any Class B CDSL to FEP.

    
     A CDSL  of 1%  will  also be  imposed  on  redemptions  of  Class A  shares
purchased  during the preceding  eighteen months if such shares were acquired at
net asset value  pursuant to the sales load  schedule  provided  under  "Class A
Shares--Initial Sales Load." Employee benefit plans eligible for net asset sales
as described  above under "Special  Programs" may be subject to a CDSL of 1% for
terminations at the plan level only, on redemptions of shares  purchased  within
eighteen months prior to plan termination.

     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
Sales Load") will be waived on shares that were purchased through Morgan Stanley
Dean Witter & Co. ("Morgan Stanley") by certain Chilean institutional  investors
(i.e., pension plans,  insurance companies and mutual funds). Upon redemption of
such shares within an eighteen month period,  Morgan Stanley 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  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  or capital  gain  distributions  from any Class A, Class B or Class D
shares of Seligman Mutual Funds.

     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: 



                                       16
<PAGE>

Total shares to be redeemed
   (122.449 @ $12.25) as follows:...........................        $1,500.00
                                                                   ==========
Dividend/Distribution shares
   (5 @ $12.25).............................................          $ 61.25
Shares held more than 1 year
   (100 @ $12.25)...........................................         1,225.00
Shares held less than 1 year subject to
   CDSL (17.449 @ $12.25)...................................           213.75
                                                                  -----------
Gross proceeds of redemption................................        $1,500.00
Less CDSL (17.449 shares @
   $12.00 = $209.39 x 1% = $2.09)...........................            (2.09)
                                                                  -----------
Net proceeds of redemption..................................        $1,497.91
                                                                  ===========

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

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

   
     (a) on redemptions following the death or disability (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-fee 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 systematic  withdrawals;  and (f) in connection with  participation  in the
Merrill Lynch Small Market 401(k) Program; (g) in connection with the redemption
of shares of the Fund if the Fund is combined with another Seligman Mutual Fund,
or another similar reorganization transaction.

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

     SFSI may from time to time assist dealers by, among other things, providing
sales  literature  to, and holding  informational  programs  for the benefit of,
dealers'  registered  representatives.  Dealers may limit the  participation  of
registered  representatives  in such  informational  programs  by means of sales
incentive  programs  which may  require  the sale of minimum  dollar  amounts of
shares of the Seligman  Mutual  Fund.  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 of 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
the address of record (up to $50,000 per day 
    



                                       17
<PAGE>

   
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. In addition, a shareholder who
has current bank  information on file with Seligman Data Corp. may redeem shares
via  telephone  and  have  the  proceeds  transferred  electronically  from  the
shareholder's fund account to the shareholder's  predesignated bank account. See
"Redemption of Shares." All telephone transactions are effected through Seligman
Data Corp. at (800) 221-2450.

     FOR INVESTORS WHO PURCHASE  SHARES BY COMPLETING  AND SUBMITTING AN ACCOUNT
APPLICATION:  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.   A
shareholder  must  provide  bank  information  on the Account  Application  or a
supplemental  election form in order to have  redemptions  via telephone sent to
the shareholder's bank account.

     FOR  INVESTORS  WHO  PURCHASE  SHARES  THROUGH A  BROKER/DEALER:  Telephone
services for a shareholder and the shareholder's  representative  may be elected
by completing a supplemental  election form 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 not
permitted.  Additionally,  group  retirement plans are not permitted to change a
dividend or gain distribution option. 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's custodian or trustee, and
provide a telephone services election form signed by each plan participant.
    

     All  Seligman  Mutual Fund  accounts  with the same account  number  (i.e.,
registered  exactly the same) as an existing account,  including any new fund in
which  the  shareholder  invests  in  the  future,  will  automatically  include
telephone  services if the existing  account has telephone  services.  Telephone
services may also be elected at any time on a  supplemental  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  transaction  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 or the shareholder's representative should
consider  using other  redemption or exchange  procedures.  (See  "Redemption of
Shares" below.) Use of these other redemption or exchange  procedures 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 implement-



                                       18
<PAGE>

ing 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 of  termination  of  telephone
services will be sent to the shareholder at the address of record.

REDEMPTION OF SHARES

   
     A shareholder may redeem shares held in book credit ("uncertificated") form
without charge,  except a CDSL, if applicable,  at any time by SENDING A WRITTEN
REQUEST to Seligman Data Corp., P.O. Box 9759 Providence,  RI 02940-9759,  or if
the 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;  however,  this may
increase  mailing  time.  Share  certificates  must be endorsed  for transfer or
accompanied  by an endorsed  stock power signed by all share  owners  exactly as
their name(s) appear(s) on the account registration. The shareholder's letter of
instruction  or endorsed  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.  A signature  guarantee is not required if
redemption   proceeds  are  transferred   electronically  to  the  shareholder's
predesignated bank account.
    

     ADDITIONAL DOCUMENTATION MAY ALSO BE REQUIRED BY SELIGMAN DATA CORP. IN THE
EVENT  OF A  REDEMPTION  BY A  CORPORATION,  EXECUTOR,  ADMINISTRATOR,  TRUSTEE,
CUSTODIAN OR RETIREMENT PLAN. FOR FURTHER INFORMATION WITH RESPECT TO REDEMPTION
REQUIREMENTS,  PLEASE CONTACT THE  SHAREHOLDER  SERVICES  DEPARTMENT OF SELIGMAN
DATA CORP. FOR ASSISTANCE.

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



                                       19
<PAGE>

Class B shares are  redeemed  within six years of  purchase a  shareholder  will
receive the net asset value per share next determined after receipt of a request
in good  order  less the  applicable  CDSL,  as  described  under  "Purchase  of
Shares-Class B Shares" above.  If Class D shares are redeemed within one year of
purchase,  a  shareholder  will  receive  the net asset  value  per  share  next
determined  after  receipt  of a  request  in good  order,  less a CDSL of 1% as
described under "Purchase of Shares--Class D Shares" above.

     A  shareholder  also may "sell"  shares to the Fund  through an  investment
dealer and, in that way, be certain, providing the order is timely, of receiving
the net asset  value  established  at the end of the day on which the  dealer is
given the repurchase order (less any applicable  CDSL). The Fund makes no charge
for this  transaction,  but the dealer may charge you a service  fee.  "Sell" or
repurchase orders received from an authorized dealer before the close of regular
trading on the NYSE and received by SFSI, the repurchase agent, before the close
of  business  on the same day will be  executed at the net asset value per share
determined as of the close of regular  trading on the NYSE on that day, less any
applicable CDSL.  Repurchase  orders received from authorized  dealers after the
close of regular  trading on 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 regular trading on the NYSE on the next trading day. 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, up to $50,000 per fund  account.  Proceeds will be sent to
the address of record.  A shareholder  whose bank is a member of the ACH network
and who has current bank  information  on file with Seligman Data Corp. may have
redemption   proceeds   transferred    electronically   to   the   shareholder's
predesignated bank account.  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.
    

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

   
     GENERAL.  With respect to shares redeemed,  a check for the proceeds,  less
any applicable CDSL, will be sent to the 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  purchased 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. Redemptions via telephone to the shareholder's
bank account  will be  transferred  electronically  within five  business  days.
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 the
shares to the  shareholder's  account.  No interest is earned on the  redemption
proceeds  during this period.  The proceeds of a redemption or repurchase may be
more or less than the shareholder's cost.
    

     The Fund reserves the right to redeem  shares owned by a shareholder  whose
investment  in the 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 the redemption is processed stating that the value of their
investment  in the Fund is less than the  specified  minimum  and that they have
sixty days to make an additional investment.


                                       20
<PAGE>

   
     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  mutual  funds in the  Seligman
Group. If a shareholder redeems shares and the redemption was subject to a CDSL,
the shareholder may reinstate all or any part of the investment in shares of the
same class of the Fund or in 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  regular  trading  on 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 SFSI'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 payment 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 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 shareholders on
November 23, 1992 and became  effective on January 1, 1993. The Plan is reviewed
by the Directors annually. The total amount paid for the year ended December 31,
1997 in respect of the Fund's  Class A shares  pursuant to the Plan was equal to
 .25% 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  respective
average  daily net asset value of the Class B and Class D shares.  Proceeds from
the Class B and D  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 Ser-



                                       21
<PAGE>

vice  Organizations  for providing  personal  service and/or the  maintenance of
shareholder  accounts and will also be used by SFSI to defray the expense of the
payment  of 4% made by it to  Service  Organizations  at the time of the sale of
Class B shares.  In that  connection,  SFSI has assigned FEP its interest in the
fees  payable  to it in respect  of the Class B shares,  other than the  portion
payable to Service  Organizations on a continuing  basis.  Proceeds from 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  B and  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 of 4% (in the case of Class B shares) or 1% (in the case of Class
D shares)  made by it to  Service  Organizations  at the time of the  sale.  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 of
the Fund on March 21, 1996 and became  effective on 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
December 31, 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 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  shall  act as  broker/dealer  of  record  for most
shareholder  accounts  that do not have a  designated  broker/dealer  of record,
including  all such  shareholder  accounts  established  after April 1, 1995 and
receives  compensation for providing personal service and account maintenance to
such accounts of record.


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
Seligman  Mutual  Funds.  Exchanges  may be made by mail, or by telephone if the
shareholder has telephone services.
    

     Class A, Class B or Class D shares may be exchanged only for Class A, Class
B or 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 Fund's CDSL schedule if such schedule is higher or
longer than the CDSL of 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.


                                       22
<PAGE>

     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  FRONTIER  FUND,  INC. seeks to produce growth in capital value;
income may be considered  but will only be  incidental to the Fund's  investment
objective.

     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  International  Fund, the Seligman  Henderson  Emerging Markets Growth
Fund,  the Seligman  Henderson  Global Growth  Opportunities  Fund, the Seligman
Henderson  Global  Smaller  Companies  Fund and the  Seligman  Henderson  Global
Technology  Fund,  which  seek  long-term  capital  appreciation   primarily  by
investing in companies either globally or internationally.

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

     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 regular trading on 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 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 least the  minimum  initial  investment  required by the
mutual  fund into which the  exchange  is being  made.  THE METHOD OF  RECEIVING
DISTRIBUTIONS,  UNLESS OTHERWISE INDICATED, WILL BE CARRIED OVER TO THE NEW FUND
ACCOUNT, AS WILL TELEPHONE SERVICES. ACCOUNT SERVICES, SUCH AS INVEST-A-CHECK(R)
SERVICE,  DIRECTED DIVIDENDS AND SYSTEMATIC  WITHDRAWAL PLAN 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 



                                       23
<PAGE>

equal to a specific dollar amount or an exchange of all shares held.  Shares for
which  certificates  have been issued may not be exchanged via telephone and may
be  exchanged  only upon receipt of a written  exchange  request  together  with
certificates representing shares to be exchanged in form for transfer.

     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
Seligman  Mutual Funds 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 if
the  broker/dealer  has entered into a Telephone  Exchange  Agreement  with SFSI
wherein the broker/dealer must agree to indemnify SFSI and 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 dealer of record  listed on the account.  SFSI reserves the right to
reject any telephone exchange request. Any rejected telephone exchange order may
be processed by mail. For more information about telephone exchange  privileges,
which unless objected to, are assigned to most shareholders  automatically,  and
the  circumstances  under  which  shareholders  may  bear the risk of loss for a
fraudulent transaction, see "Telephone Transactions" above.

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


FURTHER INFORMATION ABOUT 
TRANSACTIONS IN THE 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 CAPITAL GAIN DISTRIBUTIONS
    

     The  Fund's net  investment  income,  if any,  is paid to  shareholders  in
dividends in December. Payments vary in amount depending on income received from
portfolio  securities  and  the  costs  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;  (3) to receive both dividends and gain  distributions  in cash. Cash
dividends and gain distributions are paid by check and sent 



                                       24
<PAGE>

to the  shareholder's  address of record or, if elected by a shareholder who has
current  bank  information  on file with  Seligman  Data  Corp.,  electronically
deposited into the shareholder's  predesignated bank account. Such deposits will
normally be credited to the shareholder's  account in 3 to 4 business days after
the payable date of the dividend or gain distribution.

     In the case of prototype retirement plans, dividends and gain distributions
are reinvested in additional shares.  Unless another election is made, dividends
and capital  gains  distributions  will be credited to  shareholder  accounts in
additional  shares.  Shares acquired through a dividend or gain distribution and
credited to a shareholder's  account are not subject to an initial sales load or
a CDSL.  Dividends  and gain  distributions  paid in shares are  invested on the
payable date using the net asset value of the ex-dividend date. Shareholders may
elect to change their dividend and gain distribution options by writing Seligman
Data Corp. at the address listed below. If the shareholder has elected 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 electing telephone services, see
"Telephone  Transactions."  These  elections  must be received by Seligman  Data
Corp.  before the record date for the dividend or gain  distribution in order to
be effective for such dividend or gain  distribution.  For information on how to
have   dividend  or  gain   distributions   electronically   deposited   into  a
shareholder's bank account, contact Seligman Data Corp.
    

     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.  Distributions  of net capital gains, if any, will be
paid in the same amount for Class A, Class B and Class D shares.  See  "Purchase
Of Shares-Valuation."

   
     Shareholders  exchanging  shares of one  mutual  fund for shares of another
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 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  gain  (i.e.,  the  excess of net  long-term
capital gains over any net short-term  losses) are taxable as long-term  capital
gain, whether received in cash or invested in additional  shares,  regardless of
how long shares have been held by the shareholders.  Such  distributions are not
eligible for the dividends received deduction allowed to corporate shareholders.
Shareholders receiving  distributions in the form of additional shares issued by
the Fund will be treated for federal  income tax  purposes as having  re-



                                       25
<PAGE>

ceived 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  income 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 capital gain or loss. Individual shareholders
will be subject to federal  income tax on net capital  gain 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. 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 gain 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.


                                       26
<PAGE>

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,  NY  10017  or by  telephoning  the  Corporate
Communications/Investor  Relations  Department  toll-free at (800) 221-7844 from
all  continental  United  States or (212)  850-1864  in the New York City  area.
Information about shareholder  accounts may be requested by writing  Shareholder
Services,  Seligman Data Corp. at the same address or by calling toll-free (800)
221-2450 from all  continental  United  States,  or (212)  682-7600  outside the
continental United States.  Seligman Data Corp. may be telephoned Monday through
Friday (except  holidays),  between the hours of 8:30 a.m. and 6:00 p.m. Eastern
time, and calls will be answered by a service representative.

     24-HOUR  TELEPHONE  ACCESS IS  AVAILABLE  BY DIALING  (800)  622-4597  ON A
TOUCHTONE PHONE, WHICH PROVIDES INSTANT ACCESS TO PRICE, YIELD, ACCOUNT BALANCE,
MOST RECENT TRANSACTION AND OTHER INFORMATION.  IN ADDITION,  ACCOUNT STATEMENTS
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  in their  Account.  Other investor  services are available.  These
include:

   
     o INVEST-A-CHECK(R)  SERVICE enables a shareholder to authorize  additional
purchases of Fund shares  automatically  by electronic  funds  transfer from the
shareholder's  savings  or  checking  account,  if the bank that  maintains  the
account  is a  member  of ACH or by  preauthorized  checks  to be  drawn  on the
shareholder's  checking account at regular monthly intervals in fixed amounts of
$200 or more, or regular  quarterly  intervals in fixed amounts of $500 or more,
to  purchase  shares.   Accounts  may  be  established   concurrently  with  the
Invest-A-Check(R)  Service only if  accompanied  by a check for at least $200 in
conjunction with the monthly  investment option, or a check for at least $500 in
conjunction  with  the  quarterly  investment  option.  For  investments  in 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(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.  (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  Seligman  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  quarterly   intervals.   The
shareholder's  Cash Management Fund account must have a value of at least $5,000
at the initiation of the service.  Exchanges will be made at the public offering
price.  

   
     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.

     A  shareholder  may also direct that  dividends  payable on shares of other
companies  be  transferred  elec-
    



                                       27
<PAGE>

   
tronically to purchase  shares of any Seligman Mutual Fund, if the other company
provides this service.  See "Purchase of Shares" or contact  Seligman Data Corp.
for more information.
    

     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 SYSTEMATIC  WITHDRAWAL  PLAN 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. Payments will be sent by check
to the address designated by the shareholder or, if elected by a shareholder who
has current bank  information  on file with Seligman data Corp.,  electronically
deposited in to the shareholder's predesignated bank account. Such deposits will
normally be credited to the shareholder's  bank account in 2 to 3 days after the
shares are redeemed  from the  shareholder's  fund  account.  Holders of Class A
shares  purchased at net asset value because the purchase  amount was $1,000,000
or more  should  bear in mind that  withdrawals  will be subject to a 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  plan  immediately,  although  certain
withdrawals may be subject to a CDSL. (See "Terms and Conditions.")
    

     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 only be  directed  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 back to 1982 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 PLANS. Shares of the Fund may be purchased for:

     --Individual  Retirement Accounts (IRAs),  including Traditional IRAs, Roth
IRAs and Education 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 may also 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 are calculated separately for Class A, Class
B and Class 



                                       28
<PAGE>

   
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 or Class D of the Fund  would  have  earned  over a
specified period of time (for example, one, five and ten-year or since inception
periods)  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
through December 31, 1992 have not been adjusted to 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 total
return quoted from time to time for Class A and Class D shares for periods prior
to February 8, 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 Services,  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 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/WEISENBERGER
MUTUAL FUNDS INVESTMENT REPORT,  CHRISTIAN SCIENCE MONITOR,  FINANCIAL PLANNING,
FINANCIAL  TIMES,  FINANCIAL  WORLD,  FORBES,   FORTUNE,   INDIVIDUAL  INVESTOR,
INVESTMENT ADVISOR,  INVESTORS BUSINESS DAILY,  KIPLINGER'S,  LOS ANGELES TIMES,
MONEY MAGAZINE,  MORNINGSTAR,  INC., PENSIONS AND INVESTMENTS,  SMART MONEY, THE
NEW YORK TIMES, USA TODAY, U.S. NEWS AND WORLD REPORT,  THE WALL STREET JOURNAL,
WASHINGTON POST, WORTH MAGAZINE and YOUR MONEY.
    


ORGANIZATION AND CAPITALIZATION

     The  Fund  is  an  open-end  diversified   management   investment  company
incorporated  under  the laws of the  state  of  Maryland  in 1982.  The Fund is
authorized to issue 1,000,000,000  shares of common 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. Shares have  non-cumulative  voting rights, do not have
preemptive or subscription rights and are transferable.


                                       29
<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  notifying  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 drawn  automatically on the  shareholder's  bank on the
fifth day (unless  otherwise  specified) of each month (or on the prior business
day if such  day of the  month  falls  on a  weekend  or  holiday)  in  which an
investment  is scheduled and invested at the 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  as  uncollectable,  Seligman  Data
Corp. will cancel the purchase,  redeem shares held in the shareholder's account
for an amount sufficient to reimburse the Fund for any loss it may have incurred
as a result, and charge a $10.00 return check fee. This fee may be deducted from
the shareholder's account. The Invest-A-Check(R)  Service may be reinstated upon
written request  indicating  that the cause of interruption  has been corrected.
The  Invest-A-Check(R)  Service may be terminated by the shareholder 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  has  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  $200 in  connection  with  the  monthly
investment  option or a check for at least $500 in connection with the quarterly
investment option. If a 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.

                           SYSTEMATIC WITHDRAWAL PLAN

     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 of each  month  designated  by the  shareholder  (or on the  prior
business day if the day specified  falls on a weekend or holiday),  less, in the
case of Class B and Class D shares, any applicable CDSL. Systematic  withdrawals
of Class A shares which were  purchased at net asset value  because the purchase
amount was $1,000,000 or more will be subject to a CDSL if made within  eighteen
months  of  purchase  of such  stock.  Under  this  plan,  a Class B and Class D
shareholder  who  reinvests  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 plan. 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 plan may be
terminated  by the  shareholder  or Seligman  Data Corp.  at any time by written
notice.  It will be terminated  upon proper  notification  of the death or legal
incapacity of the shareholder. This plan is considered terminated in the event a
withdrawal of shares, other than to make scheduled withdrawal payments,  reduces
the value of shares remaining on deposit to less than $5,000. Continued payments
in excess of  dividend  income  invested  will  reduce  and  ultimately  exhaust
capital.  Withdrawals,  concurrent with purchases of shares of this or any other
investment  company,   will  be  disadvantageous   because  of  the  payment  of
duplicative sales loads, if applicable. For this reason, additional purchases of
Fund shares are discouraged when the Withdrawal Plan 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,  a  shareholder  will be
requested  to pay the  difference  between the amount of the sales load paid and
the amount of the sales load  applicable to the total  purchase made. If, within
20 days following the mailing of a written  request,  a 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 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 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 which have been  acquired by an
exchange of shares of another  Seligman Mutual Fund on which there is an initial
sales load may be taken into account in  completing  a Letter of Intent,  or for
Rights 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.

                                                                            5/98
    

                                       30
<PAGE>
                                    SELIGMAN

                   COMMUNICATIONS AND INFORMATION FUND, INC.



                          SELIGMAN FINANCIAL SERVICES
                                an affiliate of

                                   [GRAPHIC]

                             J. & W. SELIGMAN & CO.
                                  INCORPORATED

                                ESTABLISHED 1864
                      100 Park Avenue, New York, NY 10017



EQC11 5/98

<PAGE>



   
                       STATEMENT OF ADDITIONAL INFORMATION
                                   May 1, 1998
               SELIGMAN COMMUNICATIONS AND INFORMATION FUND, INC.

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

     This Statement of Additional  Information  expands upon and supplements the
information  contained in the current Prospectus of Seligman  Communications and
Information  Fund,  Inc.,  (the "Fund")  dated May 1, 1998. It should be read in
conjunction with the Prospectus, which may be obtained by writing or calling the
Fund at the above  address or telephone  numbers.  This  Statement of Additional
Information,  although not in itself a Prospectus,  is incorporated by reference
into the Prospectus in its entirety.

         The  Fund  offers  three  classes  of  shares.  Class A  shares  may be
purchased  at net asset  value plus a sales load of up to 4.75%.  Class A shares
purchased in an amount of  $1,000,000  or more are sold without an initial sales
load but are subject to a contingent  deferred sales load ("CDSL") of 1% (of the
current net asset value or original  purchase price,  whichever is less) if such
shares are redeemed within  eighteen  months of purchase.  Class B shares may be
purchased at net asset value and are subject to a CDSL,  if  applicable,  in the
following amount (as a percentage of the current net asset value or the original
purchase price,  whichever is less),  if redemption  occurs within the indicated
number of years of purchase  of such  shares:  5% (less than 1 year),  4% (1 but
less than 2 years),  3% (2 but less than 4 years), 2% (4 but less than 5 years),
1% (5  but  less  than 6  years)  and  0% (6 or  more  years).  Class  B  shares
automatically  convert  to  Class A  shares  after  approximately  eight  years,
resulting in lower  ongoing  fees.  Shares  purchased  through  reinvestment  of
dividends  and  gain   distributions   on  Class  B  shares  also  will  convert
automatically  to Class A shares along with the underlying  shares on which they
were earned.  Class D shares may be purchased at net asset value and are subject
to a CDSL of 1% (of the current net asset value or the original  purchase price,
whichever is less) if redeemed within one year of purchase.
    
         Each Class A, Class B and Class D share  represents an identical  legal
interest in the investment  portfolio of the Fund and has the same rights except
for  certain  class  expenses  and except  that Class B and Class D shares  bear
higher  ongoing fees that generally will cause the Class B and Class D shares to
have higher  expense ratios and pay lower  dividends  than Class A shares.  Each
Class has  exclusive  voting  rights  with  respect  to its  distribution  plan.
Although  holders of Class A, Class B and Class D shares  have  identical  legal
rights,  the different expenses borne by each Class will result in different net
asset  values and  dividends.  The three  classes also have  different  exchange
privileges.

                                TABLE OF CONTENTS
   
                                                                      Page

Investment Objective,Policies and Risks................................ 2
Investment Limitations ................................................ 3
Directors and Officers................................................. 4
Management and Expenses................................................ 8
Administration, Shareholder Services and
 Distribution Plan..................................................... 9
Portfolio Transactions................................................. 9
Purchase and Redemption of FundShares................................. 10
Distribution Services................................................. 12
Valuation............................................................. 13
Performance........................................................... 14
General Information................................................... 15
Financial Statements.................................................. 16
Appendix ............................................................. 17
    
 EQCI1A

                                       -1-


<PAGE>


                    INVESTMENT OBJECTIVE, POLICIES AND RISKS


   The Fund seeks to produce capital gain by investing in a portfolio consisting
of  securities  of domestic and foreign  companies  operating  in virtually  all
aspects of the communications, information and related industries.

   Illustrative subsegments of these industries include:

                                  o Advertising
                        o Broadcasting and Entertainment
                                o Cellular Radio
                    o Computer-Aided Design and Manufacturing
                        o Computer Graphics and Software
       o Local Networking and Linkage of Word and Data Processing Systems
                              o Medical Technology
                             o Proprietary Databases
                          o Publishing and Print Media
                                o Semiconductors
                       o Specialized Information Services

     The Fund may hold  securities  of  smaller,  less-seasoned  companies.  The
disposition of some of the securities  held by the Fund may be restricted  under
the federal securities laws. Generally, such "restricted securities" may be sold
only in privately  negotiated  transactions  or in public  offerings  registered
under  the  Securities  Act of 1933.  As a  result,  the Fund may not be able to
dispose of such  investments at a time when or at a price at which it desires to
do so and  may  have  to bear  expenses  of  registering  these  securities,  if
necessary.  Market value for these  securities,  if  quotations  are not readily
available, will be fair value as determined in good faith by the Fund's Board of
Directors.  The Fund will not invest more than 15% of its net assets in illiquid
securities including restricted securities.

     The  following   information   regarding  the  Fund's  investment  policies
supplements the information contained in the Prospectus.

     BORROWING.  The Fund may  from  time to time  borrow  money  from  banks to
increase its portfolio of securities.
   
     Borrowings are subject to any applicable  limitations  under regulations of
the Federal  Reserve  Board.  Current  asset  value  coverage of three times any
amount borrowed is required at all times.  No borrowings  occurred in 1997, 1996
and 1995.
    
     Any gain in the value of securities purchased with money borrowed in excess
of the cost of amounts  borrowed  would  cause the net asset value of the Fund's
shares to  increase  more than  otherwise  would be the  case.  Conversely,  any
decline in the value of securities  purchased with money borrowed or any gain in
value  less than the cost of amounts  borrowed  would  cause net asset  value to
decline more than would otherwise be the case.

LENDING OF  PORTFOLIO  SECURITIES.  The Fund may lend  portfolio  securities  to
certain institutional borrowers of securities and may invest the cash collateral
and obtain  additional  income or receive an agreed upon amount of interest from
the borrower.  Loans are subject to termination at the option of the Fund or the
borrower.  The Fund may pay  reasonable  administrative  and  custodial  fees in
connection  with a loan and may pay a negotiated  portion of the interest earned
on the cash or equivalent collateral to the borrower or placing broker. The Fund
does not have the right to vote securities on loan, but would terminate the loan
and regain the right to vote if that were  considered  important with respect to
the investment.

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

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


                                      -2-


<PAGE>


   PURCHASING  PUT OPTIONS ON  SECURITIES.  The Fund may purchase put options to
protect its portfolio  holdings in an underlying  security  against a decline in
market  value.  This hedge  protection  is  provided  during the life of the put
option  since the Fund,  as holder of the put  option,  can sell the  underlying
security at the put exercise  price  regardless of any decline in the underlying
security's market price. In order for a put option to be profitable,  the market
price of the underlying  security must decline  sufficiently  below the exercise
price to cover the premium and  transaction  costs. By using put options in this
manner,  the Fund will reduce any profit it might otherwise have realized in the
underlying  security by the premium  paid for the put option and by  transaction
costs.

     Because a  purchased  put  option  gives the  purchaser  a right and not an
obligation,  the  purchaser  is not  required  to exercise  the  option.  If the
underlying  position  incurs  a gain,  the  Fund  would  let the  option  expire
resulting in a reduced  profit on the  underlying  security equal to the cost of
the put  option.  The cost of the put  option is  limited  to the  premium  plus
commission paid. The Fund's maximum financial  exposure will be limited to these
costs.

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

REPURCHASE  Agreements.  The Fund may  enter  into  repurchase  agreements  with
commercial banks and with  broker/dealers  to invest cash for the short-term.  A
repurchase  agreement  is an  agreement  under  which the Fund  acquires a money
market instrument,  generally a U.S. Government  obligation subject to resale at
an agreed  upon  price and date.  Such  resale  price  reflects  an agreed  upon
interest  rate  effective  for the period of time the  instrument is held by the
Fund  and is  unrelated  to the  interest  rate  on the  instrument.  Repurchase
agreements  could  involve  certain  risks in the event of  bankruptcy  or other
default by the seller, including possible delays and expenses in liquidating the
securities  underlying  the  agreement,  decline  in  value  of  the  underlying
securities  and loss of interest.  Repurchase  agreements  usually are for short
periods, such as one week or less, but may be for longer periods.  However, as a
matter of fundamental policy, 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 so
invested.  The  Fund  has no  present  intention  of  entering  into  repurchase
agreements in the future.

     Except as indicated  above or as described under  "Investment  Limitations"
below,  the foregoing  investment  policies are not fundamental and the Board of
Directors of the Fund may change such policies without the vote of a majority of
its outstanding voting securities (as defined on page 4).
   
PORTFOLIO TURNOVER. The Fund's portfolio turnover rate is calculated by dividing
the lesser of purchases or sales of portfolio  securities for the fiscal year by
the monthly  average value of the portfolio  securities  owned during the fiscal
year. High portfolio  turnover  involves  correspondingly  greater  transactions
costs and a possible increase in short-term capital gains or losses.  Securities
whose maturity or expiration  date at the time of  acquisition  were one year or
less are  excluded.  The Fund's  portfolio  turnover  rates for the years  ended
December 31, 1997 and 1996 were 164.57% and 121.32%, respectively.
    
                             INVESTMENT LIMITATIONS

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

o  Borrow money, except in an amount not to exceed one-third of the value of its
   total  assets  less  liabilities  other than such  borrowing;  or mortgage or
   pledge any of its assets,  except to the extent necessary to effect permitted
   borrowings of up to 15% of its total assets on a secured basis;

o  Purchase  securities  on "margin," or sell  "short,"  write or purchase  put,
   call,  straddle  or spread  options,  except that the Fund may  purchase  put
   options  solely for the purpose of hedging  against a decline in the price of
   securities held in the Fund's portfolio;

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

o  Invest  more than 25% of the value of its total  assets in any one  industry,
   except  that the Fund  will  invest  at least  25% of the  value of its total
   assets in securities of companies  principally engaged in the communications,
   information  and related  industries,  except when  investing  for  temporary
   defensive purposes;


                                      -3-


<PAGE>


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

o  Purchase or sell commodities and commodity contracts or purchase or hold real
   estate;

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

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

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

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

                             DIRECTORS AND OFFICERS

   Directors  and officers of the Fund,  together with  information  as to their
principal business occupations during the past five years, are shown below. Each
Director who is an "interested  person" of the Fund, as defined in the 1940 Act,
is indicated by an asterisk. Unless otherwise indicated, their addresses are 100
Park Avenue, New York, NY 10017.
   
WILLIAM C. MORRIS*            Director,  Chairman of the Board,  Chief Executive
 (60)                         Officer and Chairman of the Executive Committee

                              Chairman,  J. & W.  Seligman  & Co.  Incorporated,
                              investment  managers  and  advisers;  Chairman and
                              Chief  Executive  Officer,  the Seligman  Group of
                              Investment Companies; Chairman, Seligman Financial
                              Services, Inc., broker/dealer;  Seligman Services,
                              Inc.,  broker/dealer;  and  Carbo  Ceramics  Inc.,
                              ceramic   proppants  for  oil  and  gas  industry;
                              Director, Seligman Data Corp., shareholder service
                              agent; Kerr-McGee Corporation,  diversified energy
                              company;  and Sarah Lawrence College; and a Member
                              of  the  Board  of  Governors  of  the  Investment
                              Company Institute;  formerly,  President,  J. & W.
                              Seligman & Co.  Incorporated;  Chairman,  Seligman
                              Advisors Inc., advisers;  Seligman Holdings, Inc.,
                              holding  company;   Seligman   Securities,   Inc.,
                              broker/dealer; and J. & W. Seligman Trust Company,
                              trust  company;  and Director,  Daniel  Industries
                              Inc.,   manufacturer   of  oil  and  gas  metering
                              equipment.

BRIAN T. ZINO*                Director,  President  and Member of the  Executive
 (45)                         Committee

                              Director  and  President,  J. & W.  Seligman & Co.
                              Incorporated,  investment  managers and  advisers;
                              President (with the exception of Seligman  Quality
                              Municipal Fund, Inc. and Seligman Select Municipal
                              Fund, Inc.) and Director or Trustee,  the Seligman
                              Group of Investment Companies;  Chairman, Seligman
                              Data  Corp.,   shareholder   service  agent;   and
                              Director,   Seligman  Financial  Services,   Inc.,
                              broker/dealer;     Seligman    Services,     Inc.,
                              broker/dealer;   and   Seligman   Henderson   Co.,
                              advisers;  formerly,  Director, Seligman Advisors,
                              Inc.,   advisers;   Seligman   Securities,   Inc.,
                              broker/dealer; and J. & W. Seligman Trust Company,
                              trust company.

- ----------
1  The Fund has  applied  for and  received  an  exemptive  order  from the
Securities and Exchange  Commission  that would permit it to purchase  shares of
other  investment  companies  advised by the Manager for the limited  purpose of
hedging its  obligations  in connection  with the deferred fee  arrangement  for
outside directors referred to under "Directors and Officers" below.
    

                                      -4-


<PAGE>

   
RICHARD R. SCHMALTZ*          Director  and  Member of the  Executive  Committee
 (57)

                              Director  and  Managing   Director,   Director  of
                              Investments,  J. & W. Seligman & Co. Incorporated;
                              Director  of  Seligman  Henderson  Co. and Trustee
                              Emeritus of Colby College;  formerly,  Director of
                              Research  at  Neuberger  & Berman from May 1993 to
                              September  1996 and  Executive  Vice  President of
                              McGlinn Capital from July 1987 to May 1993.

JOHN R. GALVIN                Director
 (68)
                              Dean,  Fletcher  School  of Law and  Diplomacy  at
                              Tufts   University;   Director  or  Trustee,   the
                              Seligman Group of Investment Companies;  Chairman,
                              American  Council on  Germany;  a Governor  of the
                              Center for Creative Leadership; National Committee
                              on   U.S.-China   Relations,    National   Defense
                              University;  the Institute  for Defense  Analysis;
                              and Raytheon Co., electronics; formerly, Director,
                              USLIFE  Corporation,  life insurance;  Ambassador,
                              U.S. State  Department for negotiations in Bosnia;
                              Distinguished   Policy   Analyst   at  Ohio  State
                              University  and Olin  Distinguished  Professor  of
                              National  Security  Studies at the  United  States
                              Military  Academy.  From June, 1987 to June, 1992,
                              he was the Supreme  Allied  Commander,  Europe and
                              the  Commander-in-Chief,  United  States  European
                              Command.   Tufts   University,   Packard   Avenue,
                              Medford, MA 02155

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

FRANK A. McPHERSON            Director
 (65)
                              Director;   various   corporations;   Director  or
                              Trustee,   the   Seligman   Group  of   Investment
                              Companies;  Kimberly-Clark  Corporation,  consumer
                              products;   Bank  of  Oklahoma   Holding  Company;
                              Baptist  Medical Center;  Oklahoma  Chapter of the
                              Nature  Conservancy;   Oklahoma  Medical  Research
                              Foundation;  and National  Boys and Girls Clubs of
                              America; and Member of the Business Roundtable and
                              National Petroleum Council; formerly,  Chairman of
                              the Board and Chief Executive Officer,  Kerr-McGee
                              Corporation, diversified energy company; Chairman,
                              Oklahoma  City  Public  Schools  Foundation;   and
                              Director,  Federal  Reserve  System's  Kansas City
                              Reserve  Bank;  and the  Oklahoma  City Chamber of
                              Commerce.  123  Robert  S. Kerr  Avenue,  Oklahoma
                              City, OK 73102


JOHN E. MEROW                 Director
 (68)
                              Retired  Chairman and Senior  Partner,  Sullivan &
                              Cromwell,  law  firm;  Director  or  Trustee,  the
                              Seligman    Group   of    Investment    Companies;
                              Commonwealth  Industries,  Inc.,  manufacturer  of
                              aluminum  sheet   products;   the  Foreign  Policy
                              Association;  Municipal  Art  Society of New York;
                              the U.S. Council for International  Business;  and
                              The New York and Presbyterian Hospital;  Chairman,
                              American Australian Association;  and The New York
                              and Presbyterian Hospital Care Network,  Inc.; and
                              Vice-Chairman,   the  U.S.-New   Zealand  Council;
                              Member of the American Law  Institute  and Council
                              on Foreign Relations.  125 Broad Street, New York,
                              NY 10004

BETSY S. MICHEL               Director
 (55)
                              Attorney;  Director or Trustee, the Seligman Group
                              of Investment Companies; Trustee, The Geraldine R.
                              Dodge  Foundation,   charitable  foundation;   and
                              Chairman of the Board of Trustees of St.  George's
                              School  (Newport,  RI);  formerly,  Director,  the
                              National   Association  of   Independent   Schools
                              (Washington,  DC). St.  Bernard's  Road,  P.O. Box
                              449, Gladstone, NJ 07934
    

                                       -5-


<PAGE>

   
JAMES C. PITNEY               Director
 (71)
                              Retired Partner, Pitney, Hardin, Kipp & Szuch, law
                              firm;  Director or Trustee,  the Seligman Group of
                              Investment   Companies;   and   Director,   Public
                              Broadcasting  Service (PBS);  formerly,  Director,
                              Public Service  Enterprise Group,  public utility.
                              Park  Avenue  at  Morris  County,  P.O.  Box 1945,
                              Morristown, NJ 07962-1945


JAMES Q. RIORDAN               Director
 (70)
                              Director,   various   corporations;   Director  or
                              Trustee,   the   Seligman   Group  of   Investment
                              Companies;  The Houston Exploration  Company;  The
                              Brooklyn  Museum;  The Brooklyn Union Gas Company;
                              the Committee for Economic Development; and Public
                              Broadcasting Service (PBS); formerly,  Co-Chairman
                              of  the  Policy  Council  of the  Tax  Foundation;
                              Director  and Vice  Chairman,  Mobil  Corporation;
                              Director,  Tesoro Petroleum  Companies,  Inc.; Dow
                              Jones & Co.,  Inc.;  and Director  and  President,
                              Bekaert Corporation. 675 Third Avenue, Suite 3004,
                              New York, NY 10017


ROBERT L. SHAFER              Director
 (65)
                              Director,   various   corporations;   Director  or
                              Trustee,   the   Seligman   Group  of   Investment
                              Companies;  formerly Vice President,  Pfizer Inc.,
                              pharmaceuticals; and Director, USLIFE Corporation,
                              life insurance. 235 East 42nd Street, New York, NY
                              10017

JAMES N. WHITSON              Director
 (63)
                              Director,  Sammons Enterprises,  Inc.; Director or
                              Trustee,   the   Seligman   Group  of   Investment
                              Companies;    C-SPAN;    and   CommScope,    Inc.,
                              manufacturer   of   coaxial   cables;    formerly,
                              Executive  Vice  President  and  Chief   Operating
                              Officer, Sammons Enterprises,  Inc.; and Director,
                              Red Man Pipe and Supply Company,  piping and other
                              materials.  5949 Sherry Lane, Suite 1900,  Dallas,
                              TX 75225

PAUL H. WICK                  Vice President and Portfolio Manager
 (35)
                              Director and  Managing  Director  (formerly,  Vice
                              President, Investment Officer), J. & W. Seligman &
                              Co.   Incorporated,    investment   managers   and
                              advisers;  Vice  President and Portfolio  Manager,
                              two other  open-end  investment  companies  in the
                              Seligman  Group  of  Investment   Companies;   and
                              Portfolio   Manager,   Seligman   Henderson   Co.,
                              adviser.

LAWRENCE P. VOGEL             Vice President
 (41)
                              Senior Vice President, Finance, J. & W. Seligman &
                              Co.   Incorporated,    investment   managers   and
                              advisers;   Seligman  Financial  Services,   Inc.,
                              broker/dealer;    and    Seligman    Data   Corp.,
                              shareholder  service agent;  Vice  President,  the
                              Seligman  Group  of  Investment   Companies;   and
                              Seligman  Services,   Inc.,   broker/dealer;   and
                              Treasurer,   Seligman   Henderson  Co.,  advisers;
                              formerly,   Senior   Vice   President,    Seligman
                              Advisors, Inc., advisers; and Treasurer,  Seligman
                              Holdings, Inc., holding company.

FRANK J. NASTA                Secretary
 (33)
                              Senior  Vice  President,  Law and  Regulation  and
                              Corporate  Secretary,  J.  &  W.  Seligman  &  Co.
                              Incorporated,  investment  managers and  advisers;
                              Secretary,   the  Seligman   Group  of  Investment
                              Companies;   Seligman  Financial  Services,  Inc.,
                              broker/dealer;  Seligman  Henderson Co., advisers;
                              Seligman Services, Inc.,  broker/dealer;  Seligman
                              Data Corp.,  shareholder service agent;  formerly,
                              Senior  Vice  President,  Law and  Regulation  and
                              Corporate  Secretary,   Seligman  Advisors,  Inc.,
                              advisers;  and an  attorney  at Seward and Kissel,
                              law firm.
    

                                      -6-


<PAGE>

   
THOMAS G. ROSE                Treasurer
 (40)
                              Treasurer,   the  Seligman   Group  of  Investment
                              Companies;  and Seligman  Data Corp.,  shareholder
                              service agent.
    

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

                               Compensation Table
<TABLE>
<CAPTION>
   
                                                                               PENSION OR
                                                        AGGREGATE          RETIREMENT BENEFITS        TOTAL COMPENSATION
                                                       COMPENSATION        ACCRUED AS PART OF            FROM FUND AND
     POSITION WITH FUND                               FROM FUND (1)           FUND EXPENSES           FUND COMPLEX (1)(2)
     ------------------                               -------------           -------------           -------------------
<S>                                                     <C>                       <C>                      <C>

William C. Morris, Director and Chairman                   N/A                     N/A                        N/A
Brian T. Zino, Director and President                      N/A                     N/A                        N/A
Richard R. Schmaltz, Director                              N/A                     N/A                        N/A
Fred E. Brown, Director Emeritus**                         N/A                     N/A                        N/A
John R. Galvin, Director                                $6,773.18                  N/A                     $69,000.00
Alice S. Ilchman, Director                               6,705.55                  N/A                      65,000.00
Frank A. McPherson, Director                             6,741.26                  N/A                      66,000.00
John E. Merow, Director                                  6,705.55                  N/A                      65,000.00
Betsy S. Michel, Director                                6,773.18                  N/A                      69,000.00
James C. Pitney, Director                                6,694.91                  N/A                      64,000.00
James Q. Riordan, Director                               6,751.90                  N/A                      67,000.00
Robert L. Shafer, Director                               6,751.90                  N/A                      67,000.00
James N. Whitson, Director                               6,762.54(d)               N/A                      68,000.00(d)
</TABLE>


- ----------
(1)   Based on  remuneration  received by the Directors of the Fund for the year
      ended December 31, 1997.  Effective  January 16, 1998, the per meeting fee
      for Directors was increased by $1,000,  which is allocated among all Funds
      in the Fund Complex.
    
(2)   As defined in the Fund's  Prospectus,  the  Seligman  Group of  Investment
      Companies consists of eighteen investment companies.
   
**    Retired as Director and designated Director Emeritus on March 20, 1997.
    
(d)   Deferred.
   
     The Fund has a compensation  arrangement  under which outside directors may
elect to defer receiving their fees. Under this arrangement, interest is accrued
on the deferred  balances.  The annual cost of such  interest is included in the
directors' fees and expenses, and the accumulated balance thereof is included in
"Liabilities" in the Fund's financial  statements.  The total amount of deferred
compensation  (including interest) payable in respect of the Fund to Mr. Whitson
as of December  31, 1997 was $22,121.  Messrs.  Merow and Pitney no longer defer
current  compensation;  however,  they have accrued deferred compensation in the
amounts of $52,272 and $39,841,  respectively, as of December 31, 1997. The Fund
has applied for and received  exemptive  relief that would permit a director who
has  elected  deferral  of his or her fees to choose a rate of  return  equal to
either (i) the interest rate on short-term  Treasury  bills, or (ii) the rate of
return on the shares of any of the investment  companies advised by the Manager,
as designated by the director.  The Fund may, but is not obligated to,  purchase
shares of such investment  companies to hedge its obligations in connection with
this deferral arrangement.

   Directors  and  officers  of the Fund  are also  directors  or  trustees  and
officers of some or all of the other investment companies in the Seligman Group.
Directors  and  officers of the Fund as a group owned less than 1% of the Fund's
Class A Capital  Stock at March 31,  1998.  As of that  date,  no  Directors  or
officers owned shares of the Fund's Class B or Class D Capital Stock.

   As of March 31, 1998, 22,462,640 Class A shares of the Fund, or 10.76% of the
Fund's  capital  stock and  16.70% of the  Fund's  Class A  capital  stock  then
outstanding;  and 15,379,305  Class D shares of the Fund, or 7.37% of the Fund's
capital
    

                                      -7-


<PAGE>

   
stock and  33.92% of the Fund's  Class D capital  stock  then  outstanding  were
registered in the name of Merrill  Lynch Pierce Fenner & Smith,  P.O. Box 45286,
Jacksonville, FL 32232-5286.
    
                            MANAGEMENT AND EXPENSES

     Under the  Management  Agreement,  dated  December  29,  1988,  as  amended
February  8, 1996,  subject to the  control of the Board of  Directors,  J. & W.
Seligman & Co.  Incorporated,  (the  "Manager")  manages the  investment  of the
assets of the Fund, including making purchases and sales of portfolio securities
consistent with the Fund's investment  objectives and policies,  and administers
its business and other affairs.  The Manager  provides the Fund with such office
space,  administrative  and other services and executive and other  personnel as
are necessary for Fund  operations.  The Manager pays all of the compensation of
directors of the Fund who are employees or consultants of the Manager and of the
officers and employees of the Fund. The Manager also provides senior  management
for Seligman Data Corp., the Fund's shareholder service agent.
   
   The Fund pays the Manager a management fee for its services, calculated daily
and payable  monthly.  The management fee is equal to .90% of the Fund's average
daily net  assets on the first $3  billion  of net  assets,  .85% of the  Fund's
average  daily net  assets on the next $3  billion of net assets and .75% of the
Fund's  average  daily net assets in excess of $6  billion.  For the years ended
December  31,  1997 and 1996,  the Fund paid  management  fees equal to .89% per
annum  of  its  average  daily  net  assets  or  $35,523,038  and   $25,710,954,
respectively;  for the year ended  December 31, 1995,  the Fund paid  management
fees equal to .75% per annum of its average daily net assets or $14,159,819.
    
   The Fund pays all its  expenses  other  than those  assumed  by the  Manager,
including  brokerage  commissions,  administration,   shareholder  services  and
distribution  fees,  fees and expenses of  independent  attorneys  and auditors,
taxes  and  governmental  fees,  cost of  stock  certificates  and  expenses  of
repurchase  or  redemption  of shares,  expenses  of printing  and  distributing
reports,  notices and proxy materials to shareholders,  expenses of printing and
filing reports and other documents with governmental agencies including fees and
expenses  for  qualifying  the Fund  and its  shares  under  Federal  and  state
securities laws, expenses of shareholders' meetings,  expenses of corporate data
processing and related  services,  shareholder  record  keeping and  shareholder
account  services,  fees and  disbursements  of transfer  agents and custodians,
expenses  of  disbursing  dividends  and  distributions,  fees and  expenses  of
directors of the Fund not employed by (or serve as a Director of) the Manager or
its affiliates, insurance premiums and extraordinary expenses such as litigation
expenses.

   The Management  Agreement was initially approved by the Board of Directors on
September 30, 1988 and by the shareholders at a special meeting held on December
16, 1988. The amendments to the Management  Agreement effective February 8, 1996
to increase  the fee rate payable to the Manager by the Fund,  were  approved by
the Board of  Directors  on  September  21,  1995 and by the  shareholders  at a
special meeting held on February 7, 1996. The Management Agreement will continue
in effect until December 31 of each year if (1) such  continuance is approved in
the  manner  required  by 1940  Act (by a vote of a  majority  of the  Board  of
Directors or of the outstanding voting securities of the Fund and by a vote of a
majority of the  Directors  who are not parties to the  Management  Agreement or
interested  persons  of any such  party) and (2) if the  Manager  shall not have
notified the Fund at least 60 days prior to December 31 of any year that it does
not desire such continuance.  The Management  Agreement may be terminated by the
Fund,  without  penalty,  on 60 days'  written  notice to the  Manager  and will
terminate  automatically in the event of its assignment.  The Fund has agreed to
change its name upon termination of the Management Agreement if continued use of
the name would cause confusion in the context of the Manager's business.

     The Manager is a successor firm to an investment  banking  business founded
in 1864  which has  thereafter  provided  investment  services  to  individuals,
families, institutions and corporations. On December 29, 1988, a majority of the
outstanding  voting  securities of the Manager was  purchased by Mr.  William C.
Morris and a  simultaneous  recapitalization  of the Manager  occurred.  See the
Appendix for further history of the Manager.

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

                                      -8-


<PAGE>


portfolio  managers to disclose any interest they may have in the  securities or
issuers that they recommend for purchase by any client.

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

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

           ADMINISTRATION, SHAREHOLDER SERVICES AND DISTRIBUTION PLAN

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

   The Plan was approved on July 16, 1992 by the Board of Directors of the Fund,
including a majority  of the  Directors  who are not  "interested  persons"  (as
defined  in the  1940  Act) of the  Fund  and who  have no  direct  or  indirect
financial  interest in the operation of the Plan or in any agreement  related to
the Plan (the  "Qualified  Directors")  and was approved by  shareholders of the
Fund at a Special  Meeting of  Shareholders  held on November 23, 1992. The Plan
became  effective in respect of the Class A shares on January 1, 1993.  The Plan
was  approved in respect of the Class B shares on March 21, 1996 by the Board of
Directors  of the Fund,  including a majority of the  Qualified  Directors,  and
became  effective in respect of the Class B shares on April 22,  1996.  The Plan
was  approved in respect of the Class D shares on March 18, 1993 by the Board of
Directors  of the Fund,  including a majority of the  Qualified  Directors,  and
became  effective in respect of the Class D shares on May 1, 1993. The Plan will
continue in effect through  December 31 of each year so long as such continuance
is approved  annually by a majority vote of both the Directors and the Qualified
Directors  of the Fund,  cast in person at a meeting  called for the  purpose of
voting on such approval.  The Plan may not be amended to increase materially the
amounts  payable to Service  Organizations  with respect to a Class  without the
approval of a majority of the outstanding voting securities of the class. If the
amount  payable in respect of Class A shares  under the Plan is  proposed  to be
increased materially,  the Fund will either (i) permit holders of Class B shares
to vote as a separate  class on the  proposed  increase or (ii)  establish a new
class of shares  subject to the same payment under the Plan as existing  Class A
shares,  in which case the Class B shares will  thereafter  convert into the new
class instead of into Class A shares.  No material  amendment to the Plan may be
made except by a majority of both the Directors and Qualified Directors.
   
   For the year ended  December  31, 1997,  Seligman  Financial  Services,  Inc.
("SFSI"), an affiliate of the Manager, received payments of $7,044,674 under the
Plan in respect of Class A shares,  or 0.25% per annum of the average  daily net
assets  of Class A  shares.  This  amount  was  used  primarily  to pay  Service
Organizations  on a continuing  basis for  providing  personal  services  and/or
maintenance of shareholder accounts.  For the year ended December 31, 1997, fees
incurred  by the Fund in respect of Class B shares  amounted to  $2,784,474,  or
1.00%  per annum of the  average  daily  net  assets of Class B shares.  Of this
amount,  0.725% per annum was paid  directly  to FEP  Capital,  L.P.  ("FEP") to
compensate it for having funded,  at the time of sale (i) the 4% commission paid
to  selling  brokers  and (ii) a payment  of 0.25% of sales to SFSI;  0.025% per
annum  was paid to SFSI;  and the  remaining  0.25%  per  annum was paid to SFSI
which,  in turn,  made an equal payment to Service  Organizations  for providing
personal services and/or maintenance of shareholder accounts. For the year ended
December  31,  1997,  fees  incurred  in respect of Class D shares  amounted  to
$8,713,305,  or 1.00%  per  annum of the  average  daily  net  assets of Class D
shares.  This amount was paid to SFSI and, in the first  twelve  months  after a
sale,  reimbursed it primarily for the 1% payment made to dealers at the time of
sale and for certain  other direct  distribution  costs.  After the first twelve
months,  fees  paid  to  SFSI  are  used  to pay a  continuing  fee  to  Service
Organizations.
    
   The  Plan  requires  that the  Treasurer  of the Fund  shall  provide  to the
Directors,  and the Directors shall review, at least quarterly, a written report
of the amounts expended (and purposes  therefor) under the Plan. Rule 12b-1 also
requires that the selection and nomination of Directors who are not  "interested
persons" of the Fund be made by such disinterested Directors.

                             PORTFOLIO TRANSACTIONS
   
   The  Management  Agreement  recognizes  that  in the  purchase  and  sale  of
portfolio  securities  the  Manager  will  seek the  most  favorable  price  and
execution,  and,  consistent  with that policy,  may give  consideration  to the
research,  statistical and
    
                                      -9-


<PAGE>

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

   In over-the-counter markets, the Fund deals with primary market makers unless
a more favorable  execution or price is believed to be obtainable.  The Fund may
buy securities  from or sell  securities to dealers acting as principal,  except
dealers with which its directors and/or officers are affiliated.
   
     When two or more of the investment companies in the Seligman Group or other
investment  advisory  clients  of the  Manager  desire  to buy or sell  the same
security at the same time the securities  purchased or sold are allocated by the
Manager in a manner  believed  to be  equitable  to each.  There may be possible
advantages or  disadvantages of such  transactions  with respect to price or the
size of positions readily obtainable or saleable.

     Total brokerage commissions paid to others for the execution,  research and
statistical  services for the Fund for the years ended  December 31, 1997,  1996
and 1995 were $7,436,884, $4,496,690 and $1,862,874, respectively.
    
                     PURCHASE AND REDEMPTION OF FUND SHARES

     The Fund issues three classes of shares: Class A shares may be purchased at
a price equal to the next  determined  net asset  value per share,  plus a sales
load.  Class A shares purchased at net asset value without an initial sales load
due to the size of the  purchase  are subject to a CDSL of 1% if such shares are
redeemed within eighteen months of purchase.  Class B shares may be purchased at
a price equal to the next  determined  net asset value  without an initial sales
load, but a CDSL may be charged on redemptions within 6 years of purchase. Class
D shares may be  purchased  at a price  equal to the next  determined  net asset
value  without an initial sales load,  but a CDSL may be charged on  redemptions
within one year of purchase. See "Alternative Distribution System," "Purchase of
Shares" and "Redemption of Shares" in the Prospectus.

SPECIMEN PRICE MAKE-UP
   
    Under  the  current  distribution  arrangements  between  the  Fund  and the
Distributor,  Class A shares  are sold at a  maximum  sales  charge of 4.75% and
Class B and Class D shares  are sold at net asset  value.  Using the  Fund's net
asset value at December  31,  1997,  the  maximum  offering  price of the Fund's
shares is as follows:

     CLASS A

     Net asset value per Class A share ..............................  $23.25

     Maximum sales load (4.75% of offering price) ...................    1.16
                                                                       ------
     Offering price to public .......................................  $24.41
                                                                       ======
     CLASS B

     Net asset value and offering  price per share* .................  $21.94
                                                                       ======
     CLASS D

     Net asset value and offering price per share** .................  $21.91
                                                                       ======

- ----------
*  Class B shares  are  subject  to a CDSL  declining  from 5% in the first year
   after purchase to 0% after six years.
** Class D shares are subject to a CDSL of 1% on redemptions  within one year of
   purchase. See "Redemption of Shares" in the Prospectus.
    


                                      -10-


<PAGE>


CLASS A SHARES - REDUCED INITIAL SALE LOADS

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

     VOLUME DISCOUNTS are provided if the total amount being invested in Class A
shares of the Fund alone,  or in any combination of shares of the other Seligman
Mutual Funds which are sold with an initial sales load, reaches levels indicated
in the sales load schedule set forth in the Prospectus.
   
     THE RIGHT OF  ACCUMULATION  allows an investor to combine the amount  being
invested in Class A shares of the Fund and any Seligman Mutual Fund sold with an
initial  sales load with the total net asset value of shares  already owned that
were sold  with an  initial  sales  load,  including  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,  to
determine reduced sales loads in accordance with the schedule in the Prospectus.
The value of the shares  owned,  including  the value of shares of Seligman Cash
Management  Fund  acquired in an exchange of shares of another  Seligman  Mutual
Fund on which there was an initial  sales load at the time of purchase,  will be
taken into account in orders placed through a dealer,  however,  only if SFSI is
notified by an investor or a dealer of the amount  owned by the  investor at the
time the  purchase is made and is  furnished  sufficient  information  to permit
confirmation.
    
     A LETTER OF INTENT  allows an investor  to  purchase  Class A shares over a
13-month period at reduced initial sales loads in accordance with the sales load
schedule in the  Prospectus,  based on the total amount of Class A shares of the
Fund that the letter states the investor  intends to purchase plus the total net
asset  value of shares  sold with an initial  sales  load of the other  Seligman
Mutual Funds  already  owned and the total net asset value of shares of Seligman
Cash  Management  Fund which were  acquired  through  an  exchange  of shares of
another  Seligman  Mutual Fund on which  there was an initial  sales load at the
time of purchase.  Reduced  initial sales loads also may apply to purchases made
within a 13-month  period starting up to 90 days before the date of execution of
a letter of intent.  For more information  concerning the terms of the letter of
intent see "Terms and  Conditions-Letter  of  Intent-Class A Shares Only" in the
back of the Prospectus.

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

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

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

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

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

ELIGIBLE  EMPLOYEE  BENEFIT  PLANS.  The table of sales loads in the  Prospectus
applies to sales to "eligible  employee benefit plans" (as defined in the Fund's
Prospectus),  except  that  the  Fund  may sell  shares  at net  asset  value to
"eligible  employee benefit plans" which have at least (i) $500,000  invested in
the  Seligman  Mutual  Funds or (ii) 50 eligible  employees to whom such plan is
made available.  Such sales must be made in connection with a payroll  deduction
system of plan funding or other systems  acceptable to Seligman Data Corp.,  the
Fund's  shareholder  service agent.  Such sales are believed to require  limited
sales  effort and  sales-related  expenses and  therefore  are made at net asset
value.  Contributions or account  information for plan participation also should
be  transmitted  to Seligman Data Corp. by methods which it accepts.  Additional
information about "eligible employee benefit plans" is available from investment
dealers or SFSI.


                                      -11-


<PAGE>


PAYMENT IN Securities.  In addition to cash,  the Fund may accept  securities in
payment for Fund shares sold at the applicable  public offering price (net asset
value plus any  applicable  sales  load)  although  the Fund does not  presently
intend to accept securities in payment for Fund shares. Generally, the Fund will
only consider  accepting  securities (l) to increase its holdings in a portfolio
security,  or (2) if the Manager  determines  that the offered  securities are a
suitable  investment  for the  Fund and in a  sufficient  amount  for  efficient
management.  Although no minimum has been  established,  it is expected that the
Fund would not accept securities with a value of less than $100,000 per issue in
payment  for  shares.  The Fund may reject in whole or in part offers to pay for
Fund shares with securities,  may require partial payment in cash for applicable
sales loads, and may discontinue accepting securities as payment for Fund shares
at any time without notice.  The Fund will not accept  restricted  securities in
payment  for  shares.  The Fund will  value  accepted  securities  in the manner
provided for valuing portfolio  securities of the Fund. Any securities  accepted
by the Fund in  payment  for Fund  shares  will have an active  and  substantial
market and have a value which is readily ascertainable. (See "Valuation.")
   
FURTHER  TYPES OF  REDUCTIONS.  Class A shares  also may be  issued  without  an
initial sales load in connection  with the  acquisition  of cash and  securities
owned by other  investment  companies  and personal  holding  companies;  to any
registered  unit investment  trust which is the issuer of periodic  payment plan
certificates, the net proceeds of which are invested in 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  solicitations of, its employees,
members or  participants  in connection with the purchase of shares of the Fund;
to  other  investment  companies  in the  Seligman  Group in  connection  with a
deferred  fee  arrangement  for outside  directors;  and to  "eligible  employee
benefit plans" which have at least (i) $500,000  invested in the Seligman 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.
    
     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 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.  These
sales may be made for investment purposes only, and shares may be resold only to
the Fund.

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

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

                              DISTRIBUTION SERVICES
   
     SFSI acts as general distributor of the shares of the Fund and of the other
Seligman  Mutual  Funds.  The  Fund  and  SFSI  are  parties  to a  Distributing
Agreement,  dated January 1, 1993. As general  distributor of the Fund's Capital
Stock, SFSI allows  commissions to all dealers,  as indicated in the Prospectus.
Pursuant  to  agreements  with  the  Fund,  certain  dealers  may  also  provide
sub-accounting  and other services for a fee. SFSI receives the balance of sales
loads and any CDSLs  paid by  investors.  The  balance  of sales  loads  paid by
investors  and  received  by SFSI in  respect  of  Class A  shares  amounted  to
$2,126,669 in 1997,  after  allowance of  $17,264,591 as commissions to dealers;
$3,145,037 in 1996,  after  allowance of  $25,669,252 as commissions to dealers;
$7,741,414 in 1995,  after  allowance of  $63,320,055 as commissions to dealers.
For the years ended December 31, 1997, 1996 and 1995, SFSI retained CDSL charges
from  Class D shares  and on  certain  redemptions  of Class A shares  occurring
within eighteen months of purchase amounting to $266,694, $581,998 and $590,507,
respectively.
    

                                      -12-


<PAGE>

   
     SFSI has assigned its rights to collect any CDSL imposed on  redemptions of
Class B shares to FEP Capital,  L.P. ("FEP").  SFSI has also assigned its rights
to the distribution  fees with respect of Class B shares received by it pursuant
to the  Plans  (other  than  the  portion  of such  fees  used  to make  ongoing
shareholder  servicing  payments to Service  Organizations  as  described in the
Prospectus)  to  FEP,  which  provides  funding  to  SFSI  to  enable  it to pay
commissions to dealers at the time of the sale of the related Class B shares. In
connection  with  the  assignment  of its  rights  to  collect  any CDSL and the
distribution  fees with respect to Class B shares,  SFSI receives  payments from
FEP based on the value of Class B shares  sold.  The  aggregate  amounts of such
payments  from FEP and the Class B  distribution  fees  retained by SFSI for the
year  ended  December  31,  1997 and the period  ended  December  31,  1996 were
$1,048,230 and $287,656, respectively.

     Effective April 1, 1995,  Seligman Services,  Inc. ("SSI"), an affiliate of
the Manager,  became eligible to receive  commissions from certain sales of Fund
shares,  as well as distribution  and service fees pursuant to the Plan. For the
years ended  December 31, 1997 and 1996 and for the period April 1, 1995 through
December  31,  1995,  SSI  received   commissions  of  $494,285,   $772,408  and
$4,030,095,   respectively,  from  sales  of  Fund  shares.  SSI  also  received
distribution and service fees of $961,731, $714,490 and $291,225,  respectively,
pursuant to the Plan.
    
                                    VALUATION
   
     Net asset value per share of each class of the Fund is determined as of the
close of regular trading on the NYSE,  (normally,  4:00 p.m. Eastern time), each
day that the NYSE is open.  The NYSE is  currently  closed  on New  Year's  Day,
Martin  Luther  King,  Jr. Day,  Presidents'  Day,  Good Friday,  Memorial  Day,
Independence  Day, Labor Day,  Thanksgiving Day and Christmas Day. The Fund will
also  determine  net asset  value for each class on each day in which there is a
sufficient  degree of trading in the Fund's  portfolio  securities  that the net
asset value of Fund shares  might be  materially  affected.  Net asset value per
share for a class is computed by dividing  such class' share of the value of the
net assets of the Fund (i.e.,  the value of its assets less  liabilities) by the
total  number of  outstanding  shares of such class.  All  expenses of the Fund,
including  the  Manager's  fee, are accrued daily and taken into account for the
purpose of determining net asset value. The net asset value of Class B and Class
D shares will generally be lower than the net asset value of Class A shares as a
result of the larger distribution fee with respect to such shares.
    

     Portfolio  securities,  including open short positions and options written,
are  valued at the last sale  price on the  securities  exchange  or  securities
market on which such  securities  primarily are traded.  Securities  traded on a
foreign exchange or  over-the-counter  market are valued at the last sales price
on the  primary  exchange  or market on which they are  traded.  United  Kingdom
securities for which there are not recent sales transactions are valued based on
quotations  provided  by  primary  market  makers  in  such  securities.   Other
securities  not listed on an exchange or  securities  market,  or  securities in
which there were no  transactions,  are valued at the average of the most recent
bid and asked price,  except in the case of open short positions where the asked
price is available.  Any securities  for which recent market  quotations are not
readily available,  including restricted securities, are valued at fair value as
determined in  accordance  with  procedures  approved by the Board of Directors.
Short-term  obligations  with less than sixty days  remaining  to  maturity  are
generally valued at amortized cost. Short-term  obligations with more than sixty
days  remaining  to maturity  will be valued at current  market  value until the
sixtieth  day prior to maturity,  and will then be valued on an  amortized  cost
basis  based on the value on such date  unless  the Board  determines  that this
amortized  cost value does not represent  fair market value.  Expenses and fees,
including the  management  fee, are accrued daily and taken into account for the
purpose of determining the net asset value of Fund shares.
   
     Generally,  trading  in  foreign  securities,  as well  as U.S.  Government
securities, money market instruments and repurchase agreements, is substantially
completed each day at various times prior to the close of regular trading on the
NYSE. The values of such securities used in computing the net asset value of the
shares of the Fund are determined as of such times.  Foreign  currency  exchange
rates are also generally determined prior to the close of regular trading on the
NYSE.  Occasionally,  events  affecting  the value of such  securities  and such
exchange  rates may occur between the times at which they are determined and the
close of  regular  trading  on the  NYSE,  which  will not be  reflected  in the
computation  of net asset  value.  If during  such  periods  events  occur which
materially affect the value of such securities, the securities will be valued at
their fair market value as determined in accordance with procedures  approved by
the Board of Directors.
    

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


                                      -13-


<PAGE>


                                   PERFORMANCE
   
     The Fund's average annual total returns of Class A shares for the one-year,
five-year and ten-year  periods ended December 31, 1997 were 17.12%,  28.01% and
22.73%,  respectively.  These returns were computed by  subtracting  the maximum
sales  load of 4.75% of  public  offering  price  and  assuming  that all of the
dividends and gain  distributions by the Fund over the relevant time period were
reinvested.  It was then  assumed  that at the end of these  periods  the entire
amount was redeemed.  The average  annual total returns were then  determined by
calculating  the annual rate required for the initial  investment to grow to the
amount which would have been received upon redemption  (i.e., the average annual
compound rate of return). The average annual total returns for Class B shares of
the Fund for the  one-year  period and the  period  April 22,  1996  (inception)
through December 31, 1997 were 17.11% and 17.03%, respectively.  This return was
computed assuming that all of the dividends and gain  distributions  paid by the
Fund's Class B shares, if any, were reinvested over the relevant time period. It
was then assumed that at the end of the period the entire  amount was  redeemed,
subtracting  the  applicable  CDSL (5% for the  one-year  period  and 4% for the
period since inception).  The average annual total returns for Class D shares of
the Fund for the one-year  period ended  December 31, 1997 and the period May 3,
1993 (inception) through December 31, 1997 were 20.89% and 30.65%, respectively.
These  returns  were  computed  assuming  that  all of the  dividends  and  gain
distributions  paid by the Fund's Class D shares,  if any, were  reinvested over
the relevant  time  period.  It was then assumed that at the end of each period,
the entire amount was redeemed, subtracting the 1% CDSL, if applicable.

     Table A below  illustrates the total return (income and capital) on Class A
shares of the Fund with dividends, if any, invested and gain distributions taken
in shares. It shows that a $1,000 investment in Class A shares, assuming payment
of the  4.75%  sales  load,  made on  January  1,  1988 had a value of $7,754 on
December 31, 1997,  resulting in an aggregate  total return of 675.43%.  Table B
illustrates  the total return (income and capital) on Class B shares of the Fund
with dividends,  if any,  invested and gain  distributions  taken in shares.  It
shows that a $1,000  investment in Class B made on April 22, 1996  (commencement
of offering of Class B shares) had a value of $1,305 on December 31, 1997, after
subtracting the 4% CDSL, resulting in an aggregate total return of 30.51%. Table
C  illustrates  the total  return  (income and capital) on Class D shares of the
Fund with dividends, if any, invested and gain distributions taken in shares. It
shows  that a  $1,000  investment  in  Class  D  shares  made  on  May  3,  1993
(commencement  of  offering of Class D shares) had a value of $3,482 on December
31, 1997  resulting in an aggregate  total return of 248.17%.  The results shown
should not be considered a representation of the dividend income or gain or loss
in capital  value which may be realized  from an  investment  made in a class of
shares of the Fund today.

                            TABLE A - CLASS A SHARES

<TABLE>
<CAPTION>

                                                     VALUE OF
YEAR            VALUE OF INITIAL    VALUE OF GAIN    DIVIDEND                     TOTAL
ENDED 1           INVESTMENT 2      DISTRIBUTION     INVESTED  TOTAL VALUE 2   RETURN 1, 3
- ------          ---------------     -------------    --------  ------------    -----------
<S>                 <C>               <C>              <C>        <C>           <C>
12/31/88            $  941            $   81           $--        $1,022
12/31/89               945               385            --         1,330
12/31/90               829               354            --         1,183
12/31/91             1,081               751            --         1,832
12/31/92             1,149             1,000            --         2,149
12/31/93             1,255             1,649            --         2,904
12/31/94             1,556             2,374            --         3,930
12/31/95             2,056             3,579            --         5,635
12/31/96             2,197             4,110            --         6,307
12/31/97             2,173             5,581            --         7,754        675.43%
</TABLE>

                            TABLE B - CLASS B SHARES
<TABLE>
<CAPTION>

                                                     VALUE OF
YEAR/PERIOD     VALUE OF INITIAL    VALUE OF GAIN    DIVIDEND                     TOTAL
ENDED 1           INVESTMENT 2      DISTRIBUTION     INVESTED  TOTAL VALUE 2   RETURN 1, 3
- ------          ---------------     -------------    --------  ------------    -----------
<S>                 <C>               <C>              <C>        <C>           <C>

12/31/96            $1,052            $   51           $--        $1,103
12/31/97               980               325            --         1,305        30.51%     


</TABLE>
    
                                      -14-
<PAGE>


                            TABLE C - CLASS D SHARES

<TABLE>
<CAPTION>
   
                                                     VALUE OF
YEAR/PERIOD     VALUE OF INITIAL    VALUE OF GAIN    DIVIDEND                     TOTAL
ENDED 1           INVESTMENT 2      DISTRIBUTION     INVESTED  TOTAL VALUE 2   RETURN 1, 3
- ------          ---------------     -------------    --------  ------------    -----------
<S>                 <C>               <C>              <C>        <C>           <C>

12/31/93            $1,088            $  261           $--        $1,349
12/31/94             1,333               474            --         1,807
12/31/95             1,744               828            --         2,572
12/31/96             1,847             1,010            --         2,857
12/31/97             1,790             1,692            --         3,482        248.17%   
</TABLE>


1  For the ten years ended December 31, 1997;  from  commencement of offering of
   Class B shares on April 22, 1996; and from  commencement of offering of Class
   D shares on May 3, 1993.
    
2  The "Value of  Initial  Investment"  as of the date  indicated  reflects  the
   effect of the maximum sales load, and CDSL, if  applicable,  assumes that all
   dividends  and  capital  gains  distributions  were taken in cash and reflect
   changes in the net asset value of the shares purchased with they hypothetical
   initial  investment.  "Total  Value"  reflects  the  effect of the  CDSL,  if
   applicable,   assumes   investment   of  all   dividends   and  capital  gain
   distributions and reflects changes in the net asset value.

3  "Total Return" for each class of shares of the Fund is calculated by assuming
   a  hypothetical  initial  investment of $1,000 at the beginning of the period
   specified, subtracting the maximum sales load for Class A shares; determining
   total value of all dividends and capital gain  distributions  that would have
   been paid during the period on such  shares  assuming  that each  dividend or
   capital  gain  distribution  was invested in  additional  shares at net asset
   value;  calculating  the  total  value  of the  investment  at the end of the
   period,  subtracting  the CDSL on Class B and Class D shares,  if applicable;
   and  finally,   by  dividing  the  difference   between  the  amount  of  the
   hypothetical  initial investment at the beginning of the period and its total
   value at the end of the  period  by the  amount of the  hypothetical  initial
   investment.

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

     The total  return and  average  annual  total  return of the Class A shares
quoted  through   December  31,  1992  do  not  reflect  the  deduction  of  the
administration,  shareholder services and distribution fee, effective January 1,
1993;  and for Class A and  Class D shares  through  February  7,  1996,  do not
reflect the increase in management fee approved by the  shareholders on February
7, 1996 and became effective  February 8, 1996, which fees, if reflected,  would
reduce the performance quoted.

     The Fund may also  include  its  aggregate  total  return  over a specified
period in advertisements  or in information  furnished to present or prospective
shareholders.

                               GENERAL INFORMATION

     It  is  the  intention  of  the  Fund  not  to  hold  Annual   Meetings  of
Shareholders. The Directors may call Special Meetings of Shareholders for action
by  shareholder  vote as may be  required  by the  1940 Act or the  Articles  of
Incorporation.

CAPITAL  STOCK.  The Board of Directors is  authorized to classify or reclassify
and  issue  any  unissued  Capital  Stock of the Fund  into any  number of other
classes without further action by shareholders. The 1940 Act requires that where
more than one class exists,  each class must be preferred over all other classes
in respect of assets specifically allocated to such class.
   
CUSTODIAN.  Investors  Fiduciary Trust Company,  801 Pennsylvania,  Kansas City,
Missouri  64105 serves as custodian of the Fund.  It also  maintains,  under the
general  supervision of the Manager,  the accounting  records and determines the
net asset value for the Fund.
    
AUDITORS.  Deloitte & Touche LLP,  independent  auditors,  have been selected as
auditors of the Fund. Their address is Two World Financial Center, New York, New
York 10281.


                                      -15-
<PAGE>


                              FINANCIAL STATEMENTS
   
     The Annual  Report to  Shareholders  for the year ended  December  31, 1997
contains a schedule of the  investments  as of  December  31,  1997,  as well as
certain other  financial  information as of that date. The financial  statements
and notes included in the Annual Report,  and the Independent  Auditor's  Report
thereon,  are  incorporated  herein by  reference.  The  Annual  Report  will be
furnished  without  charge to investors who request  copies of this Statement of
Additional Information.
    


                                      -16-


<PAGE>


                                    APPENDIX

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

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

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

THE SELIGMAN COMPLEX:

 .... Prior to 1900

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

 ...1900-1910

o    Helps Congress finance the building of the Panama Canal.

 ...1910s

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

 ...1920s

o    Participates in hundreds of  underwritings  including those for some of the
     country's largest companies: Briggs Manufacturing,  Dodge Brothers, General
     Motors,  Minneapolis-Honeywell  Regulatory Company,  Maytag Company, United
     Artists  Theater  Circuit  and  Victor  Talking  Machine   Company.
   
o    Forms  Tri-Continental  Corporation  in 1929,  today the nation's  largest,
     diversified  closed-end equity investment company,  with over $3 billion in
     assets, and one of its oldest.
    
 ...1930s

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


                                      -17-


<PAGE>


 ...1940s

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

 ...1950-1989

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

 ...1990s

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

                                      -18-


<PAGE>

                                                               File No. 2-80168
                                                                       811-3596
================================================================================

Portfolio of Investments
December 31, 1997

                                     SHARES         VALUE
                                     ------         -----

COMMON STOCKS  93.7%

COMMUNICATIONS
INFRASTRUCTURE  6.7%

Aspect Telecommunications*
  Developer and manufacturer
  of automated call distribution
  equipment                         1,656,000   $   34,776,000

CIDCO*(o)
  Manufacturer of telephone
  caller identification systems     1,500,000       28,593,750

Cisco Systems*
  Manufacturer of computer
  network routers and switches      1,200,000       66,975,000

Diamond Lane Communications*#
  Designer of high-speed ADSL
  modems and related networking
  equipment                           202,020        1,999,998

ECI Telecommunications (Israel)
  Manufacturer of digital
  telecommunications and data
  transmissions systems             2,350,000       60,071,875

L.M. Ericsson Telefon (ADRs)
(Sweden)
  Manufacturer of
  telecommunications equipment        150,000        5,601,563

Excel Switching*
  Designer and marketer of
  wireless switching equipment        890,000       15,964,375

Lucent Technologies
  Manufacturer of
  telecommunications equipment        150,000       11,981,250

Nokia (Class A) (ADRs) (Finland)
  Developer and manufacturer of
  telecommunications systems          116,300        8,141,000

Oak Industries*(o)
  Manufacturer of cable
  television connectors and
  fiber optics components           1,050,000       31,171,875

QUALCOMM*
  Developer, manufacturer, and
  marketer of communications
  systems and products                200,000       10,106,250

Tellabs*
  Designer, manufacturer, and
  marketer of telecommunications
  transmission equipment              600,000       31,668,750
                                                --------------
                                                   307,051,686
                                                --------------
COMPUTER HARDWARE/
PERIPHERALS  19.1%

Adaptec*
  Supplier of computer
  input/output systems              1,850,000       68,796,875

American Power Conversion*
  Manufacturer of constant
  power supply products             2,050,000       48,559,375

Creative Technology*
  Marketer of PC audio
  products                          4,250,000       93,234,375

Data General*
  Multi-processor computers
  and data storage systems          1,000,000       17,437,500

Electronics for Imaging*(o)
  Manufacturer of peripherals
  for color copiers                 4,600,000       76,331,250

EMC*
  Manufacturer of enterprise
  data storage systems              7,050,000      193,434,375

Encad*(o)
  Designer and marketer of
  wide-format printer products        750,000       20,812,500

Gateway 2000*
  Manufacturer and direct
  marketer of personal
  computers                         1,050,000       34,256,250

In Focus Systems*(o)
  Manufacturer of portable
  projection systems                  685,000       21,020,937

Lexmark International Group
(Class A)*
  Manufacturer of laser and
  inkjet printers and cartridges    2,298,500       87,343,000

Read-Rite*(o)
  Manufacturer of recording
  heads for disk drives             3,800,000       60,325,000

Storage Technology*
  Tape- and disk-based data
  storage equipment                 2,400,000      148,650,000
                                                --------------
                                                   870,201,437
                                                --------------
COMPUTER SOFTWARE  15.9%

3DO*(o)
  Developer of video game and
  PC entertainment software         2,200,000        4,778,125

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


<PAGE>

================================================================================

Portfolio of Investments
December 31, 1997

                                     SHARES         VALUE
                                     ------         -----

COMPUTER SOFTWARE (continued)

Activision*(o)
  Developer of video game and
  PC entertainment software         1,000,000   $   17,937,500

Ambit Design Systems*#
  Developer of integrated
  circuit design software             500,000        2,000,000

ANSYS*(o)
  Developer of engineering
  analysis software                 1,350,000        9,660,937

Cadence Design System*
  Electronic design
  automation software               2,350,000       57,575,000

CheckPoint Software Technology
  Developer of network
  "firewall" security software         50,000        2,043,750

Compuware*
  Mainframe software and
  consulting services               1,600,000       51,250,000

CrossRoads Software*#
  Developer of connecting
  software to link
  client/server applications          800,000        4,000,000

Electronic Arts*
  Developer, marketer, and
  distributor of entertainment
  software                          1,250,000       47,304,688

Gemstar International Group*
(Bermuda)
  Developer and marketer of
  proprietary VCR programming
  software                          1,075,000       25,867,188

Microsoft*
  Developer of personal
  computer operating systems
  and application software            175,000       22,613,281

Network Associates*(o)
  Supplier of network
  security and management
  solutions                         2,400,000      126,675,000

Parametric Technology*
  Developer of mechanical
  design software                   2,600,000      123,012,500

Simulation Sciences*
  Provider of application
  software for the petroleum
  and chemical industries             500,000        8,125,000

Structural Dynamics Research*(o)
  Developer of mechanical
  design software                   3,250,000       73,531,250

Synopsys*
  Developer of integrated circuit
  design software                   3,000,000      107,062,500

Viasoft*
  Software and services vendor
  specializing in "Year 2000"
  testing                             950,000       40,196,875
                                                --------------
                                                   723,633,594
                                                --------------
CONTRACT MANUFACTURING/
CIRCUIT BOARDS  4.0%

ADFlex Solutions*(o)
  Manufacturer of
  flexible circuit boards             900,000       14,681,250

Hadco*(o)
  Manufacturer of complex
  printed circuit boards            1,125,000       50,941,406

Jabil Circuit*
  Electronic contract
  manufacturing services            1,400,000       55,475,000

Sanmina*
  Manufacturer of back planes
  and provider of contract
  manufacturing services              930,000       63,298,125
                                                --------------
                                                   184,395,781
                                                --------------
ELECTRONICS CAPITAL
EQUIPMENT  15.8%

Applied Materials*
  Manufacturer of
  semiconductor fabrication
  equipment                         2,000,000       60,187,500

ASM Lithography* (Netherlands)
  Manufacturer of
  photolithography equipment          400,000       27,025,000

ASM Lithography* (Netherlands)
  Manufacturer of
  photolithography equipment          600,000       39,378,240

Asyst Technologies*(o)
  Manufacturer of miniature
  clean-room environments
  for the manufacture of
  silicon wafers                      630,000       13,860,000

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


<PAGE>

================================================================================

Portfolio of Investments
December 31, 1997

                                     SHARES         VALUE
                                     ------         -----

ELECTRONICS CAPITAL
EQUIPMENT (continued)

Cognex*(o)
  Manufacturer of machine
  vision systems                    2,350,000     $ 64,184,375

Credence Systems*(o)
  Manufacturer of automated
  semiconductor test equipment      2,180,000       64,446,250

Electro Scientific Industries*(o)
  Manufacturer of memory
  circuit repair systems and
  circuit board drilling systems    1,110,000       42,526,875

Etec Systems*(o)
  Designer and manufacturer
  of photomask manufacturing
  systems                           1,800,000       83,587,500

Integrated Process Equipment*(o)
  Manufacturer of chemical
  mechanical polishing
  equipment                           500,000        7,890,625

KLA-Tencor*
  Manufacturer of wafer
  inspection and metrology
  equipment                         2,100,000       81,046,875

Kulicke & Soffa Industries*(o)
  Manufacturer of semiconductor
  packaging equipment               2,300,000       42,981,250

Novellus Systems*(o)
  Manufacturer of chemical vapor
  deposition equipment              2,725,000       88,136,719

Teradyne*
  Manufacturer of semiconductor
  test equipment                    3,250,000      104,000,000
                                                --------------
                                                   719,251,209
                                                --------------
INFORMATION SERVICES   7.6%

BISYS Group*
  Provider of data processing
  services for banks                1,090,000       36,378,750

Computer Sciences*
  Computer services and
  systems integration                 500,000       41,750,000

First Data*
  Transaction processing services   2,400,000       70,200,000

Galileo International
  Provider of travel reservation
  data services                     1,850,000       51,106,250

Gartner Group (Class A)*
  Provider of information
  technology consulting and
  training products                 2,025,000       75,557,813

Information Resources*
  Provider of computerized
  databases and software
  products                          1,000,000       13,437,500

Mastech*
  Provider of information
  technology services               1,150,000       36,656,250

Unisys*
  Manufacturer of business
  information systems               1,600,000       22,200,000
                                                --------------
                                                   347,286,563
                                                --------------
MEDIA  10.3%

Belo (A.H.) (Class A)*
  Diversified media company
  with interests in television,
  publishing, and electronic
  media                               825,000       46,303,125

CBS
  Radio and television
  broadcasting                      5,000,000      147,187,500

Chancellor Media*
  Radio broadcasting                1,625,000      121,316,407

CKS Group*(o)
  Internet advertising
  services                          1,025,000       14,510,156

Clear Channel Communications*
  Owner and operator of radio
  and television stations             520,000       41,307,500

Cox Radio (Class A)*
  Operator of radio stations          860,000       34,615,000

Time Warner
  Diversified media and
  entertainment company               500,000       31,000,000

Universal Outdoor Holdings*
  Outdoor advertising such
  as billboards                       600,000       31,275,000
                                                --------------
                                                   467,514,688
                                                --------------
- ----------
See footnotes on page   .


<PAGE>

================================================================================

Portfolio of Investments
December 31, 1997

                                     SHARES         VALUE
                                     ------         -----

SEMICONDUCTORS  13.3%

Altera*
  Designer and manufacturer
  of field-programmable
  logic devices                       500,000     $ 16,578,125

Atmel*
  Manufacturer of non-volatile
  memory circuits                   1,000,000       18,593,750

Dallas Semiconductor
  Designer, manufacturer, and
  marketer of specialty
  semiconductors                    1,119,400       45,615,550

International Rectifier*
  Manufacturer of power
  semiconductors                    1,300,000       15,356,250

Lattice Semiconductor*(o)
  Designer and developer of
  programmable logic devices        2,100,000       99,750,000

Maxim Integrated Products*
  Designer and manufacturer of
  linear and mixed-signal
  integrated circuits               2,563,000       88,583,687

Microchip Technology*(o)
  Supplier of field-programmable
  microcontrollers                  2,950,000       88,684,375

National Semiconductor*
  Analog circuits and
  microprocessors                   1,300,000       33,718,750

PMC-Sierra*
  Provider of high-speed
  networking circuits               1,050,000       32,746,875

Unitrode*(o)
  Designer and manufacturer
  of analog semiconductors          1,600,000       34,400,000

Vishay Intertechnology*
  Manufacturer of capacitors,
  resistors, and discrete
  semiconductors                    2,072,000       48,951,000

VLSI Technology*(o)
  Manufacturer of application-
  specific semiconductors           2,550,000       60,243,750

Xilinx*
  Supplier of field-programmable
  gate arrays                         700,000       24,500,000
                                                --------------
                                                   607,722,112
                                                --------------

                                    SHARES OR
                                    PRIN. AMT.       VALUE
                                   ------------      ------

TELECOMMUNICATIONS  1.0%

General Communications*
  Provider of diversified
  telecommunications services
  in Alaska                         1,781,000 shs. $11,910,437

MCI Communications
  Provider of
  telecommunications
  services                            500,000       21,421,875

Millicom International Cellular*
(Luxembourg)
  Cellular services operator          300,000       11,212,500
                                                --------------
                                                    44,544,812
                                                --------------
OTHER                                                  442,500
                                                --------------

TOTAL COMMON STOCKS
(Cost $4,083,206,616)                            4,272,044,382
                                                --------------
CONVERTIBLE ISSUES  1.3%

CONVERTIBLE BONDS  0.2%
(Cost $10,003,150)

COMPUTER SOFTWARE  0.2%

Activision,
  63 1/4%, due 1/1/2005+
  Developer of
  entertainment software          $10,000,000       10,650,000
                                                --------------
CONVERTIBLE
PREFERRED STOCKS  1.1%

MEDIA  1.1%

Chancellor Media, 7%
  Radio broadcasting                  250,000 shs.  27,062,500

Chancellor Media, $3+
  Radio broadcasting                  300,000       23,212,500
                                                --------------

TOTAL CONVERTIBLE
PREFERRED STOCKS
(Cost $27,500,000)                                  50,275,000
                                                --------------
TOTAL CONVERTIBLE ISSUES
(Cost $37,503,150)                                  60,925,000
                                                --------------

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


<PAGE>

================================================================================

Portfolio of Investments
December 31, 1997

                                    SHARES OR
                                    PRIN. AMT.       VALUE
                                   ------------      ------

PREFERRED STOCKS  0.1%
(Cost $4,999,951)

COMMUNICATIONS
INFRASTRUCTURE  0.1%

UniSite (Class C)*#
  Provider of wireless
  shared radio sites               10,796 shs.  $    4,999,951
                                                --------------

SHORT-TERM HOLDINGS  5.2%

Canadian Imperial Bank of
  Commerce, Grand Cayman
  Fixed Time Deposit
  6 5/8%, 1/2/1998               $117,700,000      117,700,000

First National Bank of
  Chicago, Grand Cayman
  Fixed Time Deposit
  6 5/8%, 1/2/1998                117,700,000      117,700,000
                                                --------------
TOTAL SHORT-TERM
HOLDINGS
(Cost $ 235,400,000)                               235,400,000
                                                --------------

                                                     VALUE
                                                     ------
TOTAL INVESTMENTS  100.3%
(Cost $4,361,109,717)                           $4,573,369,333

OTHER ASSETS
LESS LIABILITIES  (0.3)%                           (15,178,441)
                                                --------------
NET ASSETS  100.0%                              $4,558,190,892
                                                ==============

- ----------
*    Non-income producing security.
+    Rule 144A security.
#    Restricted securities.
(o)  Affiliated issuers (Fund's holdings representing 5% or more of the
     outstanding voting securities).

Descriptions of companies have not been audited by Deloitte & Touche LLP. 

See Notes to Financial Statements.


<PAGE>

================================================================================
Statement of Assets and Liabilities
December 31, 1997

<TABLE>
<CAPTION>
<S>                                                               <C>               <C>
ASSETS:
Investments, at value:
  Common stocks and convertible issues* (cost $4,125,709,717) ..  $4,337,969,333
  Short-term holdings (cost $235,400,000) ......................     235,400,000    $4,573,369,333
                                                                  --------------
Cash ...........................................................................           609,195
Receivable for securities sold .................................................        57,661,293
Receivable for Capital Stock sold ..............................................        30,128,895
Expenses prepaid to shareholder service agent ..................................         1,216,106
Receivable for interest and dividends ..........................................           300,195
Other ..........................................................................           118,748
                                                                                    --------------
Total Assets ...................................................................     4,663,403,765
                                                                                    --------------
LIABILITIES:
Payable for securities purchased ...............................................        71,467,264
Payable for Capital Stock repurchased ..........................................        25,290,395
Accrued expenses, taxes, and other .............................................         8,455,214
                                                                                    --------------
Total Liabilities ..............................................................       105,212,873
                                                                                    --------------
Net Assets .....................................................................    $4,558,190,892
                                                                                    ==============
COMPOSITION OF NET ASSETS:
Capital Stock, at par ($.10 par value; 1,000,000,000 
  shares authorized; 199,823,182 shares outstanding):
  Class A ......................................................................    $   13,364,592
  Class B ......................................................................         2,303,497
  Class D ......................................................................         4,314,229
Additional paid-in capital .....................................................     4,316,303,246
Accumulated net investment loss ................................................          (114,234)
Undistributed net realized gain ................................................         9,759,946
Net unrealized appreciation of investments .....................................       212,259,616
                                                                                    --------------
Net Assets .....................................................................    $4,558,190,892
                                                                                    ==============
NET ASSET VALUE PER SHARE:
Class A ($3,107,480,737 / 133,645,917 shares) ..................................            $23.25
                                                                                            ======
Class B ($505,342,441 / 23,034,971 shares) .....................................            $21.94
                                                                                            ======
Class D ($945,367,714 / 43,142,294 shares) .....................................            $21.91
                                                                                            ======
</TABLE>

- ----------
* Includes affiliated issuers (issuers in which the Fund's holdings represent
  5% or more of the outstanding voting securities) with a cost of
  $1,484,390,462 and a value of $1,241,662,655.
See Notes to Financial Statements.


<PAGE>

================================================================================

Statement of Operations
For the Year Ended December 31, 1997

<TABLE>
<CAPTION>
<S>                                                            <C>            <C>
INVESTMENT INCOME:
Interest .................................................     $  9,197,385
Dividends ................................................        3,537,217
                                                               ------------
Total Investment Income ...................................................   $ 12,734,602

EXPENSES:
Management fee ...........................................       35,523,038
Distribution and service fees ............................       18,542,453
Shareholder account services .............................       11,898,218
Shareholder reports and communications ...................        1,608,952
Registration .............................................        1,064,860
Custody and related services .............................          999,671
Auditing and legal fees ..................................          123,504
Directors' fees and expenses .............................           67,952
Miscellaneous ............................................          148,043
                                                               ------------
Total Expenses ............................................................     69,976,691
                                                                              ------------
Net Investment Loss .......................................................    (57,242,089)

NET REALIZED AND UNREALIZED GAIN (LOSS) ON INVESTMENTS:

Net realized gain on investments* ........................      909,728,876
Net change in unrealized appreciation of investments .....     (144,024,652)
                                                               ------------
Net Gain on Investments ...................................................    765,704,224
                                                                              ------------
Increase in Net Assets from Operations ....................................   $708,462,135
                                                                              ============
</TABLE>

- ----------
* Includes net realized gain from affiliated issuers of $257,097,287.
See Notes to Financial Statements.


<PAGE>

================================================================================

Statements of Changes in Net Assets

<TABLE>
<CAPTION>
                                                                      YEAR ENDED DECEMBER 31,
                                                                   -----------------------------
                                                                        1997           1996
                                                                   -------------   -------------
<S>                                                                <C>             <C>           
OPERATIONS:
Net investment loss .............................................  $ (57,242,089)  $ (38,954,438)
Net realized gain on investments ................................    909,728,876     153,061,653
Net change in unrealized appreciation of investments ............   (144,024,652)    238,743,809
                                                                   -------------   -------------
Increase in Net Assets from Operations ..........................    708,462,135     352,851,024
                                                                   -------------   -------------
DISTRIBUTIONS TO SHAREHOLDERS:
Net realized gain on investments:
   Class A ......................................................   (621,494,484)   (105,584,145)
   Class B ......................................................    (87,967,545)     (4,686,401)
   Class D ......................................................   (196,816,410)    (33,293,284)
                                                                   -------------   -------------
Decrease in Net Assets from Distributions .......................   (906,278,439)   (143,563,830)
                                                                   -------------   -------------

                                               SHARES
                                     --------------------------
                                       YEAR ENDED DECEMBER 31,
                                     --------------------------
                                         1997          1996
                                     ------------   -----------
CAPITAL SHARE TRANSACTIONS:* 
Net proceeds from sale of shares:
   Class A ........................    30,847,206    34,422,498      837,264,966      749,537,882
   Class B ........................    14,952,067     5,362,644      391,781,442      113,021,809
   Class D ........................     8,669,975    11,596,458      225,248,842      243,586,540
Exchanged from associated Funds:
   Class A ........................    29,422,861    37,176,372      787,728,489      814,655,013
   Class B ........................     1,194,212        94,188       29,695,869        1,982,642
   Class D ........................    12,022,132     3,580,521      310,543,695       75,837,958
Shares issued in payment of
gain distributions:
   Class A ........................    23,313,230     4,368,020      569,075,182       98,062,037
   Class B ........................     3,579,064       201,358       82,568,805        4,351,357
   Class D ........................     7,940,049     1,434,633      183,018,029       30,988,033
                                     ------------   -----------   --------------   --------------
Total .............................   131,940,796    98,236,692    3,416,925,319    2,132,023,271
                                     ------------   -----------   --------------   --------------
Cost of shares repurchased:
   Class A ........................   (23,014,559)  (21,671,916)    (611,914,607)    (474,588,279)
   Class B ........................    (1,035,991)     (126,718)     (27,730,271)      (2,780,813)
   Class D ........................    (6,201,793)   (7,424,660)    (158,791,776)    (156,046,056)
Exchanged into associated Funds:
   Class A ........................   (29,624,808)  (39,839,103)    (799,242,903)    (874,567,022)
   Class B ........................      (997,743)     (188,110)     (25,590,755)      (4,005,480)
   Class D ........................   (11,933,465)   (5,088,386)    (311,146,906)    (105,848,538)
                                     ------------   -----------   --------------   --------------
Total .............................   (72,808,359)  (74,338,893)  (1,934,417,218)  (1,617,836,188)
                                     ------------   -----------   --------------   --------------
Increase in Net Assets from Capital
Share Transactions ................    59,132,437    23,897,799    1,482,508,101      514,187,083
                                     ============   ===========   --------------   --------------

Increase in Net Assets ..........................................  1,284,691,797      723,474,277

NET ASSETS:
Beginning of year ...............................................  3,273,499,095    2,550,024,818
                                                                  --------------   --------------
End of Year (including accumulated net investment loss of
$114,234 and $102,022, respectively) ............................ $4,558,190,892   $3,273,499,095
                                                                  ==============   ==============
</TABLE>

- ----------
* The Fund began offering Class B shares on April 22, 1996.
See Notes to Financial Statements.


<PAGE>

================================================================================

Notes to Financial Statements

1. Multiple Classes of Shares -- Seligman Communications and Information Fund,
Inc. (the "Fund") offers three classes of shares. All shares existing prior to
May 3, 1993, the commencement of Class D shares, were classified as Class A
shares. The Fund began offering Class B shares on April 22, 1996. Class A shares
are sold with an initial sales charge of up to 4.75% and a continuing service
fee of up to 0.25% on an annual basis. Class A shares purchased in an amount of
$1,000,000 or more are sold without an initial sales charge but are subject to a
contingent deferred sales load ("CDSL") of 1% on redemptions within 18 months of
purchase. Class B shares are sold without an initial sales charge but are
subject to a distribution fee of 0.75%, a service fee of up to 0.25% on an
annual basis, and a CDSL, if applicable, of 5% on redemptions in the first year
of purchase, declining to 1% in the sixth year and 0% thereafter. Class B shares
will automatically convert to Class A shares on the last day of the month that
precedes the eighth anniversary of their date of purchase. Class D shares are
sold without an initial sales charge but are subject to a distribution fee of up
to 0.75% and a service fee of up to 0.25% on an annual basis, and a CDSL, if
applicable, of 1% imposed on redemptions made within one year of purchase. The
three classes of shares represent interests in the same portfolio of
investments, have the same rights and are generally identical in all respects
except that each class bears its separate distribution and certain other class
expenses, and has exclusive voting rights with respect to any matter on which a
separate vote of any class is required.

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

a.  Security Valuation -- Investments in convertible securities and common
    stocks are valued at current market values or, in their absence, at fair
    values determined in accordance with procedures approved by the Board of
    Directors. Securities traded on national exchanges are valued at last sales
    prices or, in their absence and in the case of over-the-counter securities,
    at the mean of bid and asked prices. Short-term holdings maturing in 60 days
    or less are valued at amortized cost.

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

c.  Security Transactions and Related Investment Income -- Investment
    transactions are recorded on trade dates. Identified cost of investments
    sold is used for both financial statement and federal income tax purposes.
    Dividends receivable and payable are recorded on ex-dividend dates. Interest
    income is recorded on an accrual basis.

d.  Multiple Class Allocations -- All income, expenses (other than
    class-specific expenses), and realized and unrealized gains or losses are
    allocated daily to each class of shares based upon the relative value of
    shares of each class. Class-specific expenses, which include distribution
    and service fees and any other items that are specifically attributable to a
    particular class, are charged directly to such class. For the year ended
    December 31, 1997, distribution and service fees were the only
    class-specific expenses.

e.  Distributions to Shareholders -- The treatment for financial statement
    purposes of distributions made to shareholders during the year from net
    investment income or net realized gains may differ from their ultimate
    treatment for federal income tax purposes. These differences are caused
    primarily by differences in the timing of the recognition of certain
    components of income, expense, or realized capital gain for federal income
    tax purposes. Where such differences are permanent in nature, they are
    reclassified in the components of net assets based on their ultimate
    characterization for federal income tax purposes. Any such reclassification
    will have no effect on net assets, results of operations, or net asset value
    per share of the Fund.

3. Purchases and Sales of Securities -- Purchases and sales of portfolio
securities, excluding US Government obligations and short-term investments, for
the year ended December 31, 1997, amounted to $6,650,931,325 and $6,334,624,528,
respectively.

    At December 31, 1997, the cost of investments for federal income tax
purposes was substantially the same as the cost for financial reporting
purposes, and the tax basis gross unrealized appreciation and depreciation of
portfolio securities amounted to $604,883,743 and $392,624,127, respectively.

4. Management Fee, Administrative Services, and Other Transactions -- J. & W.
Seligman & Co. Incorporated (the "Manager") manages the affairs of the Fund and
provides the necessary personnel and facilities. Compensation of all officers of
the Fund, all directors of the Fund who are employees or consultants of the
Manager, and all personnel of the Fund and the Manager is paid by the Manager.
The Manager receives a fee, calculated daily and payable monthly, equal to 0.90%
per annum of the first $3 billion of the Fund's average daily net assets, 0.85%
per annum of the next $3 billion of the Fund's average daily net assets and
0.75% per annum of the Fund's average daily net assets in excess of $6 billion.
The management fee reflected in the Statement of Operations represents 0.89% per
annum of the Fund's average daily net assets.


<PAGE>

================================================================================

Notes to Financial Statements

    Seligman Financial Services, Inc. (the "Distributor"), agent for the
distribution of the Fund's shares and an affiliate of the Manager, received
concessions of $2,126,669 from sales of Class A shares, after commissions of
$17,264,591 were paid to dealers.

    The Fund has an Administration, Shareholder Services and Distribution Plan
(the "Plan") with respect to distribution of its shares. Under the Plan, with
respect to Class A shares, service organizations can enter into agreements with
the Distributor and receive a continuing fee of up to 0.25% on an annual basis,
payable quarterly, of the average daily net assets of the Class A shares
attributable to the particular service organizations for providing personal
services and/or the maintenance of shareholder accounts. The Distributor charges
such fees to the Fund pursuant to the Plan. For the year ended December 31,
1997, fees incurred aggregated $7,044,674, or 0.25% per annum of the average
daily net assets of Class A shares.

    Under the Plan, with respect to Class B and Class D shares, service
organizations can enter into agreements with the Distributor and receive a
continuing fee for providing personal services and/or the maintenance of
shareholder accounts of up to 0.25% on an annual basis of the average daily net
assets of the Class B and Class D shares for which the organizations are
responsible; and, for Class D shares only, fees for providing other distribution
assistance of up to 0.75% on an annual basis of such average daily net assets.
Such fees are paid monthly by the Fund to the Distributor pursuant to the Plan.

    With respect to Class B shares, a distribution fee of 0.75% on an annual
basis of average daily net assets is payable monthly by the Fund to the
Distributor; however, the Distributor has sold its rights to substantially all
of this fee to a third party (the "Purchaser"), which provides funding to the
Distributor to enable it to pay commissions to dealers at the time of the sale
of the related Class B shares.

    For the year ended December 31, 1997, fees incurred under the Plan,
equivalent to 1% per annum of the average daily net assets of Class B and Class
D shares, amounted to $2,784,474 and $8,713,305, respectively.

    The Distributor is entitled to retain any CDSL imposed on redemptions of
Class D shares occurring within one year of purchase and on certain redemptions
of Class A shares occurring within 18 months of purchase. For the year ended
December 31, 1997, such charges amounted to $266,694.

    The Distributor has sold its rights to collect any CDSL imposed on
redemptions of Class B shares to the Purchaser. In connection with the sale of
its rights to collect any CDSL and the distribution fees with respect to Class B
shares described above, the Distributor receives payments from the Purchaser
based on the value of Class B shares sold. The aggregate amount of such payments
and the Class B shares distribution fees retained by the Distributor, for the
year ended December 31, 1997, amounted to $1,048,230.

    Seligman Services, Inc., an affiliate of the Manager, is eligible to receive
commissions from certain sales of shares of the Fund, as well as distribution
and service fees pursuant to the Plan. For the year ended December 31, 1997,
Seligman Services, Inc. received commissions of $494,285 from the sales of
shares of the Fund. Seligman Services, Inc. also received distribution and
service fees of $961,731, pursuant to the Plan.

    Seligman Data Corp., which is owned by certain associated investment
companies, charged the Fund at cost $11,898,218 for shareholder account
services.

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

    The Fund has a compensation arrangement under which directors who receive
fees may elect to defer receiving such fees. Interest is accrued on the deferred
balances. The annual cost of such fees and interest is included in directors'
fees and expenses and the accumulated balance thereof at December 31, 1997,
of $114,234 is included in other liabilities. Deferred fees and the related
accrued interest are not deductible for federal income tax purposes until such
amounts are paid.

5. Committed Line of Credit -- Effective July 23, 1997, the Fund increased its
committed line of credit facility with a group of banks to $340 million from
$280 million. Borrowings pursuant to the credit facility are subject to interest
at a rate equal to the federal funds rate plus 0.50% per annum. The Fund incurs
a commitment fee of 0.10% per annum on the unused portion of the credit
facility. The credit facility may be drawn upon only for temporary purposes and
is subject to certain other customary restrictions. The credit facility
commitment expires one year from the date of the agreement but is renewable with
the consent of the participating banks. To date, the Fund has not borrowed from
the credit facility. 


<PAGE>

================================================================================

Notes to Financial Statements

6. Affiliated Issuers -- As defined under the Investment Company Act of 1940, as
amended, affiliated issuers are those in which the Fund's holdings of an issuer
represent 5% or more of the outstanding voting securities of the issuer. A
summary of the Fund's transactions in the securities of these issuers during the
year ended December 31, 1997, is as follows:

<TABLE>
<CAPTION>
                                                 GROSS         GROSS                     REALIZED
                                 BEGINNING     PURCHASES     SALES AND      ENDING         GAIN       DIVIDEND      ENDING
AFFILIATE                         SHARES     AND ADDITIONS  REDUCTIONS      SHARES        (LOSS)       INCOME        VALUE
- ---------                       ----------   -------------  ----------    ----------   ------------   ---------   -----------
<S>                              <C>            <C>            <C>         <C>           <C>               <C>    <C>        
3DO ...........................  2,200,000      100,000        100,000     2,200,000     $ (801,623)       --     $ 4,778,125
Activision.....................  1,000,000      400,000        400,000     1,000,000        823,816        --      17,937,500
ADFlex Solutions...............    750,000      355,000        205,000       900,000     (1,065,874)       --      14,681,250
Altron.........................    900,000           --        900,000            --      3,308,107        --              --
ANSYS..........................    850,000      500,000             --     1,350,000             --        --       9,660,937
Asyst Technologies.............    500,000      787,600        657,600       630,000     14,920,462        --      13,860,000
CIDCO..........................  1,500,000           --             --     1,500,000             --        --      28,593,750
Cognex.........................  1,600,000    1,050,000        300,000     2,350,000      3,516,762        --      64,184,375
Credence Systems...............  1,800,000      580,000        200,000     2,180,000      6,412,170        --      64,446,250
CKS Group......................         --    1,025,000             --     1,025,000             --        --      14,510,156
Encad..........................         --      750,000             --       750,000             --        --      20,812,500
Electronics for Imaging........    900,000    4,400,000        700,000     4,600,000     18,199,594        --      76,331,250
Electro Scientific Industries .    800,000      310,000             --     1,110,000             --        --      42,526,875
Etec Systems...................  1,150,000    2,266,300      1,616,300     1,800,000     25,797,204        --      83,587,500
Fusion Systems.................    590,000           --        590,000            --      6,831,540        --              --
Hadco..........................    540,000    1,772,200      1,187,200     1,125,000     31,716,927        --      50,941,406
In Focus Systems...............    700,000      300,000        315,000       685,000      5,814,982        --      21,020,937
Integrated Process Equipment ..    400,000    1,450,000      1,350,000       500,000      9,870,015        --       7,890,625
Kulicke & Soffa Industries ....        --     2,953,100        653,100     2,300,000      9,104,646        --      42,981,250
Lattice Semiconductor..........  1,900,000    1,653,600      1,453,600     2,100,000     37,439,203        --      99,750,000
Microchip Technology...........  1,325,000    2,418,700        793,700     2,950,000     13,866,524        --     88,684,375
Mylex..........................  1,750,000      250,000      2,000,000            --    (14,522,821)       --              --
Network Associates.............  1,500,000    1,150,000        250,000     2,400,000        942,600        --     126,675,000
Novellus Systems...............  1,000,000    3,275,000      1,550,000     2,725,000     44,629,745        --      88,136,719
Oak Industries.................  1,000,000       50,000             --     1,050,000             --        --      31,171,875
Read-Rite......................    400,000    3,800,000        400,000     3,800,000      4,172,585        --      60,325,000
Structural Dynamics Research ..  2,600,000      950,000        300,000     3,250,000      1,173,509        --      73,531,250
Unitrode.......................         --    1,600,000             --     1,600,000             --        --      34,400,000
Veeco Instruments..............         --      415,000        415,000            --      5,661,109        --              --
VLSI Technology................         --    4,750,000      2,200,000     2,550,000     29,286,105        --      60,243,750
                                                                                       ------------            --------------
TOTAL .........................                                                        $257,097,287            $1,241,662,655
                                                                                       ============            ==============
</TABLE>

7. Restricted Securities -- At December 31, 1997, the Fund owned four private
placement investments that were purchased through private offerings and cannot
be sold without prior registration under the Securities Act of 1933 or pursuant
to an exemption therefrom. In addition, the Fund has agreed to further
restrictions on the disposition of its shares as set forth in various agreements
entered into in connection with the purchase of these investments. These
investments are valued at fair value as determined in accordance with procedures
approved by the Board of Directors of the Fund. The acquisition dates of these
investments, along with their cost and values at December 31, 1997, are as
follows:

INVESTMENTS                        ACQUISITION DATES      COST          VALUE
- -----------                        -----------------   -----------   -----------
Ambit Design Systems                   12/4/97         $ 2,000,000   $ 2,000,000
CrossRoads Software                   12/23/97           4,000,000     4,000,000
Diamond Lane Communications             9/4/97           1,999,998     1,999,998
UniSite (Class C Preferred Stock)     12/19/97           4,999,951     4,999,951
                                                       -----------   -----------
                                                       $12,999,949   $12,999,949
                                                       ===========   ===========


<PAGE>

================================================================================

Financial Highlights

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

    "Total return based on net asset value" measures each Class's performance
assuming that investors purchased Fund shares at net asset value as of the
beginning of the period, invested dividends and capital gains paid at net asset
value, and then sold their shares at the net asset value on the last day of the
period. The total return computations do not reflect any sales charges investors
may incur in purchasing or selling shares of the Fund. Total returns for periods
of less than one year are not annualized.

   "Average commission rate paid" represents the average commission paid by the
Fund to purchase or sell portfolio 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. This rate is provided for periods
beginning January 1, 1996.

<TABLE>
<CAPTION>
                                                                            CLASS A
                                                 -----------------------------------------------------------
                                                                    YEAR ENDED DECEMBER 31,
                                                 -----------------------------------------------------------
                                                    1997(o)     1996(o)      1995(o)    1994(o)     1993
                                                   --------    --------     --------   --------   --------
PER SHARE OPERATING PERFORMANCE:

<S>                                                  <C>         <C>         <C>        <C>        <C>   
Net Asset Value, Beginning of Year .............     $23.51      $21.99      $16.64     $13.43     $12.30
                                                    -------     -------     -------    -------    -------
Net investment loss ............................      (0.33)      (0.26)      (0.33)     (0.19)     (0.14)
Net realized and unrealized investment gain ....       6.01        2.84        7.59       4.86       4.37
                                                    -------     -------     -------    -------    -------
Increase from Investment Operations ............       5.68        2.58        7.26       4.67       4.23
Distributions from net gain realized ...........      (5.94)      (1.06)      (1.91)     (1.46)     (3.10)
                                                    -------     -------     -------    -------    -------
Net Increase (Decrease) in Net Asset Value .....      (0.26)      1.52         5.35       3.21       1.13
                                                    -------     -------     -------    -------    -------
Net Asset Value, End of Year ...................     $23.25      $23.51      $21.99     $16.64     $13.43
                                                    =======     =======     =======    =======    =======
TOTAL RETURN BASED ON NET ASSET VALUE: .........      22.95%      11.94%      43.39%     35.30%     35.13%

RATIOS/SUPPLEMENTAL DATA:
Expenses to average net assets .................       1.53%       1.68%       1.61%      1.65%      1.63%
Net investment loss to average net assets ......     (1.21)%     (1.16)%     (1.31)%    (1.27)%    (1.39)%
Portfolio turnover .............................     164.57%     121.32%      65.77%    104.08%    137.10%
Average commission rate paid ...................     $.0544      $.0531
Net Assets, End of Year (000s omitted) ......... $3,107,481  $2,414,672  $1,940,693   $307,542    $92,987
</TABLE>

- ----------
See footnotes on page 22.


<PAGE>

================================================================================

Financial Highlights

<TABLE>
<CAPTION>
                                                     CLASS B                                     CLASS D
                                              -------------------------   ----------------------------------------------------
                                                 YEAR        4/22/96*               YEAR ENDED DECEMBER 31,            5/3/93*
                                                 ENDED         TO         -----------------------------------------      TO
                                              12/31/97(o)   12/31/96(o)    1997(o)    1996(o)    1995(o)    1994(o)   12/31/93
                                              ------------ ------------   --------   --------   --------   --------   --------
PER SHARE OPERATING
PERFORMANCE:

<S>                                             <C>           <C>          <C>        <C>         <C>        <C>        <C>   
Net Asset Value, Beginning of Year .......      $22.62        $21.51       $22.61     $21.35      $16.31     $13.32     $12.24
                                                ------        ------       ------     ------      ------     ------     ------
Net investment loss ......................       (0.50)        (0.28)       (0.50)     (0.40)      (0.50)     (0.33)     (0.05)
Net realized and unrealized investment 
gain .....................................        5.76          2.45         5.74       2.72        7.45       4.78       4.23
                                                ------        ------       ------     ------      ------     ------     ------
Increase from Investment 
Operations ...............................        5.26          2.17         5.24       2.32        6.95       4.45       4.18
Distributions from net gain realized .....       (5.94)        (1.06)       (5.94)     (1.06)      (1.91)     (1.46)     (3.10)
                                                ------        ------       ------     ------      ------     ------     ------
Net Increase (Decrease)
in Net Asset Value .......................       (0.68)         1.11        (0.70)      1.26        5.04       2.99       1.08
                                                ------        ------       ------     ------      ------     ------     ------
Net Asset Value, End of Year .............      $21.94        $22.62       $21.91     $22.61      $21.35     $16.31     $13.32
                                                ======        ======       ======     ======      ======     ======     ======
TOTAL RETURN BASED ON 
NET ASSET VALUE:                                 21.96%        10.30%       21.86%     11.07%      42.37%     33.94%     34.89%

RATIOS/SUPPLEMENTAL DATA: 
Expenses to average net assets ...........        2.28%         2.44%+       2.28%      2.43%       2.37%      2.50%      2.56%+
Net investment loss to average net assets        (1.96)%       (1.96)%+     (1.96)%    (1.91)%     (2.07)%    (2.20)%    (2.33)%+
Portfolio turnover .......................      164.57%       121.32%++    164.57%    121.32%      65.77%    104.08%    137.10%+++
Average commission rate paid .............      $.0544        $.0531++     $.0544     $.0531        
Net Assets, End of Year 
(000s omitted) ...........................    $505,342      $120,848     $945,368   $737,979    $609,332    $96,100     $7,833
</TABLE>

- ----------
*    Commencement of offering of shares.
(o) Per share amounts for the years ended December 31, 1997, 1996, 1995, and
     1994, are calculated based on average shares outstanding.
  +  Annualized.
 ++  For the year ended December 31, 1996.
+++  For the year ended December 31, 1993.
See Notes to Financial Statements.


<PAGE>

================================================================================

Report of Independent Auditors

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

The Board of Directors and Shareholders,
Seligman Communications and Information Fund, Inc.:

We have audited the accompanying statement of assets and liabilities, including
the portfolio of investments, of Seligman Communications and Information Fund,
Inc. as of December 31, 1997, the related statements of operations for the year
then ended and of changes in net assets for each of the years in the two-year
period then ended, and the financial highlights for each of the periods
presented. These financial statements and financial highlights are the
responsibility of the Fund's management. Our responsibility is to express an
opinion on these financial statements and financial highlights based on our
audits.

We conducted our audits in accordance with generally accepted auditing
standards. Those standards require that we plan and perform the audit to obtain
reasonable assurance about whether the financial statements and financial
highlights are free of material misstatement. An audit includes examining, on a
test basis, evidence supporting the amounts and disclosures in the financial
statements. Our procedures included confirmation of securities owned as of
December 31, 1997, by correspondence with the Fund's custodian and brokers;
where replies were not received from brokers, we performed other auditing
procedures. An audit also includes assessing the accounting principles used and
significant estimates made by management, as well as evaluating the overall
financial statement presentation. We believe that our audits provide a
reasonable basis for our opinion.

In our opinion, such financial statements and financial highlights present
fairly, in all material respects, the financial position of Seligman
Communications and Information Fund, Inc. as of December 31, 1997, the results
of its operations, the changes in its net assets, and the financial highlights
for the respective stated periods in conformity with generally accepted
accounting principles.

DELOITTE & TOUCHE LLP
New York, New York
January 30, 1998

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





<PAGE>

                                                               File No. 2-80168
                                                                       811-3596
PART C.      OTHER INFORMATION

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

   
       Part A  Financial  Highlights  for  Class A shares  for ten  years  ended
               December 31, 1997;  Financial  Highlights for Class B shares from
               April 22, 1996  (commencement  of offering) to December 31, 1997;
               Financial  Highlights  for Class D shares  from the period May 3,
               1993 (commencement of offering) to December 31, 1997.

       Part B  Required Financial  Statements,  which are included in the Fund's
               Annual  Report to  Shareholders  dated  December  31,  1997,  are
               incorporated   by  reference  in  the   Statement  of  Additional
               Information.  These  include:  Portfolio  of  Investments  as  of
               December 31,  1997;  Statement  of Assets and  Liabilities  as of
               December 31, 1997;  Statement  of  Operations  for the year ended
               December  31, 1997;  Statements  of Changes in Net Assets for the
               years  ended  December  31,  1997 and  1996;  Notes to  Financial
               Statements;   Financial  Highlights  for  the  five  years  ended
               December 31, 1997 for the Fund's  Class A shares;  for the period
               April 22, 1996  (commencement  of offering)  through December 31,
               1997 for the  Fund's  Class B shares;  and for the  period May 3,
               1993 (commencement of offering) through December 31, 1997 for the
               Fund's Class D shares; Report of Independent Auditors.
    

       (b)     Exhibits: All Exhibits have been previously filed except Exhibits
               marked with an asterisk (*) which are incorporated herein.

   
(1)    Restated Articles of Amendment of Registrant.  (Incorporated by reference
       to Registrant's Post-Effective Amendment No. 18, filed April 29, 1997.)

(2)    By-laws of the  Corporation.  (Incorporated  by reference to Registrant's
       Post-Effective Amendment No. 18, filed April 29, 1997.)
    

(3)    Not applicable.

(4)    Specimen certificate of Class B Capital Stock. (Incorporated by Reference
       to Form SE filed on April 16, 1996.)

(4a)   Specimen certificate of Class D Capital Stock. (Incorporated by Reference
       to Post-Effective Amendment No. 14 filed on April 29, 1993.)

(5)    Copy of new Management  Agreement between Registrant and J. & W. Seligman
       &  Co.   Incorporated.   (Incorporated  by  reference  to  Post-Effective
       Amendment No. 17, filed on April 19, 1996.)

   
(6)    Copy of the new Distributing  Agreement  between  Registrant and Seligman
       Financial  Services,  Inc.  (Incorporated  by reference  to  Registrant's
       Post-Effective Amendment No. 18, filed April 29, 1997.)
    

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

(6b)   Form of Sales Agreement  between Seligman  Financial  Services,  Inc. and
       Dean Witter  Reynolds,  Inc.  (Incorporated by reference to Exhibit 6b of
       Registration  Statement  No.  2-33566,  Post-Effective  Amendment No. 53,
       filed on April 28, 1997.)

(6c)   Form of Sales Agreement  between Seligman  Financial  Services,  Inc. and
       Dean Witter Reynolds,  Inc. with respect to certain Chilean institutional
       investors.  (Incorporated  by  reference  to Exhibit  6c of  Registration
       Statement No.  2-33566,  Post-Effective  Amendment No. 53, filed on April
       28, 1997.)

(6d)   Form of Dealer Agreement between Seligman  Financial  Services,  Inc. and
       Smith   Barney  Inc.   (Incorporated   by  reference  to  Exhibit  6d  of
       Registration  Statement  No.  2-33566,  Post-Effective  Amendment No. 53,
       filed on April 28, 1997.)

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

   
(7a)   Deferred  Compensation Plan for Directors of Seligman  Communications and
       Information Fund.*
    

<PAGE>

                                                               File No. 2-80168
                                                                       811-3596
PART C.      OTHER INFORMATION (continued)
ITEM 24.     FINANCIAL STATEMENTS AND EXHIBITS (CONTINUED)

   
 (8)   Copy of Amended  Custodian  Agreement  between  Registrant  and Investors
       Fiduciary  Trust  Company.  (Incorporated  by reference  to  Registrant's
       Post-Effective Amendment No. 18, filed April 29, 1997.)
    

 (9)   Not applicable.

   
(10)   Opinion  and  Consent  of  Counsel.   (Incorporated   by   reference   to
       Registrant's Post-Effective Amendment No. 18, filed April 29, 1997.)
    

(11)   Report and Consent of Independent Auditors.*

(12)   Not applicable.

(13)   Purchase  Agreement  for Initial  Capital  between  Registrant's  Class B
       shares  and  J.  & W.  Seligman  &  Co.  Incorporated.  (Incorporated  by
       reference  to  Registrant's  Post-Effective  Amendment  No. 17, April 19,
       1996.)

   
(13a)  Purchase  Agreement  for Initial  Capital  between  Registrant's  Class D
       Shares  and  J.  & W.  Seligman  &  Co.  Incorporated.  (Incorporated  by
       reference to  Registrant's  Post-Effective  Amendment No. 18, filed April
       29, 1997.)

(14)   The Seligman  Roth/Traditional  IRA  Information  Kit.  (Incorporated  by
       reference to Exhibit q(1) of Registration  Statement No. 333-50295,  Form
       N-2, filed on April 16, 1998.)
    

(14a)  The Seligman  Simple IRA Plan Set-Up Kit.  (Incorporated  by reference to
       Exhibit  14  of  Registration  Statement  No.  333-20621,   Pre-Effective
       Amendment No. 2, filed on April 17, 1997.)

(14b)  The Seligman  Simple IRA Plan  Agreement.  (Incorporated  by reference to
       Exhibit  14  of  Registration  Statement  No.  333-20621,   Pre-Effective
       Amendment No. 2, filed on April 17, 1997.)

   
(14c)  Qualified Plan and Trust Basic Plan Document.  (Incorporated by reference
       to Exhibit q(4) to Registration No.  333-50295,  Form N-2, filed on April
       16, 1998.)

(14d)  Flexible  Standardized  401(k) Profit  Sharing Plan  Adoption  Agreement.
       (Incorporated by reference to Exhibit q(4) to Registration No. 333-50295,
       Form N-2, filed on April 16, 1998.)

(14e)  Flexible  Nonstandardized Safe Harbor 401(k) Profit Sharing Plan Adoption
       Agreement. (Incorporated by reference to Exhibit q(4) to Registration No.
       333-50295, Form N-2, filed on April 16, 1998.)

(14f)  Simplified  Employee Pension Plan.  (Incorporated by reference to Exhibit
       14(f) to Registration No. 2-10835, Post-Effective Amendment No. 76, filed
       on April 29, 1998.)

(14g)  Educational   IRA.   (Incorporated  by  reference  to  Exhibit  14(f)  to
       Registration No. 2-10835, Post-Effective Amendment No. 76, filed on April
       29, 1998.)
    
(15)   Form of  Administration,  Shareholder  Services and Distribution  Plan of
       Registrant.  (Incorporated  by reference to  Registrant's  Post-Effective
       Amendment No. 17, filed April 19, 1996.)

(15a)  Form of Administration,  Shareholder Services and Distribution  Agreement
       between Seligman Financial Services,  Inc. and Dealers.  (Incorporated by
       reference to  Registrant's  Post-Effective  Amendment No. 17, filed April
       19, 1996.)

   
(16)   Schedule of  Computation  of  Performance  Data provided in  Registration
       Statement  in  response  to  Item  22.   (Incorporated  by  reference  to
       Registrant's Post-Effective Amendment No. 18, filed April 29, 1997.)
    

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

(18)   Copy of Multiclass Plan entered into by Registrant pursuant to Rule 18f-3
       under the Investment  Company Act of 1940.  (Incorporated by reference to
       Post-Effective Amendment No. 17, filed on April 19, 1996.)

Other Exhibits:  Power of Attorney*

<PAGE>

                                                               File No. 2-80168
                                                                       811-3596
PART C.      OTHER INFORMATION (continued)

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

ITEM 26.     NUMBER OF HOLDERS OF SECURITIES

   
                       (1)                              (2)
                                                 Number of Record
                   Title Of Class            Holders As Of March 31, 1998
                   --------------            ----------------------------
                   Class A Common Stock              297,850
                   Class B Common Stock               48,714
                   Class D Common Stock               61,260
    

ITEM 27.     INDEMNIFICATION

   
             Reference  is  made  to the  provisions  of  Articles  Twelfth  and
             Thirteenth  of  Registrant's   Amended  and  Restated  Articles  of
             Incorporation   filed  as  Exhibit   24(b)(1)  and  Article  IV  of
             Registrant's Amended and Restated By-laws filed as Exhibit 24(b)(2)
             to Registrant's Post-Effective Amendment No. 18 to the Registration
             Statement.
    

             Insofar  as  indemnification  for  liabilities  arising  under  the
             Securities Act of 1933 may be permitted to directors,  officers and
             controlling  persons of the  registrant  pursuant to the  foregoing
             provisions,  or otherwise,  the  registrant has been advised by the
             Securities and Exchange Commission such  indemnification is against
             public   policy  as  expressed  in  the  Act  and  is,   therefore,
             unenforceable.  In the  event  that  a  claim  for  indemnification
             against such liabilities  (other than the payment by the registrant
             of expenses incurred or paid by a director,  officer or controlling
             person of the registrant in the  successful  defense of any action,
             suit or  proceeding)  is  asserted  by such  director,  officer  or
             controlling   person  in  connection  with  the  securities   being
             registered,  the  registrant  will,  unless in the  opinion  of its
             counsel  the matter  has been  settled  by  controlling  precedent,
             submit to a court of appropriate  jurisdiction the question whether
             such indemnification by it is against public policy as expressed in
             the Act and will be  governed  by the  final  adjudication  of such
             issue.

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

   
             The Manager  has an  investment  advisory  service  division  which
             provides  investment  management or advice to private clients.  The
             list  required by this Item 28 of  officers  and  directors  of the
             Manager,  together  with  information  as to  any  other  business,
             profession,  vocation or employment of a substantial nature engaged
             in by such  officers and  directors  during the past two years,  is
             incorporated  by reference to Schedules A and D of Form ADV,  filed
             by the  Manager,  pursuant to the  Investment  Advisers Act of 1940
             (SEC File No. 801-15798), which was filed on March 31, 1998.
    

<PAGE>

                                                               File No. 2-80168
                                                                       811-3596
PART C.      OTHER INFORMATION (continued)

ITEM 29.     PRINCIPAL UNDERWRITERS

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

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

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

   
<TABLE>
<CAPTION>
                                              Seligman Financial Services, Inc.
                                              ---------------------------------
                                                    As of March 31, 1998
                                                    --------------------
                 (1)                                          (2)                                          (3)
         Name and Principal                            Positions and Offices                       Positions and Offices
         Business Address                                With Underwriter                            With Registrant
         ----------------                                ----------------                            ---------------
<S>     <C>                                            <C>                                         <C>
         WILLIAM C. MORRIS*                            Director                                    Chairman of the Board
                                                                                                   and Chief Executive
                                                                                                   Officer
         BRIAN T. ZINO*                                Director                                    Director and President
         RONALD T. SCHROEDER*                          Director                                    None
         FRED E. BROWN*                                Director                                    Director Emeritus
         WILLIAM H. HAZEN*                             Director                                    None
         THOMAS G. MOLES*                              Director                                    None
         DAVID F. STEIN*                               Director                                    None
         STEPHEN J. HODGDON*                           President                                   None
         CHARLES W. KADLEC*                            Chief Investment Strategist                 None
         LAWRENCE P. VOGEL*                            Senior Vice President, Finance              Vice President
         ED LYNCH*                                     Senior Vice President, Director             None
                                                       of Marketing
         MARK R. GORDON*                               Senior Vice President, National             None
                                                       Sales Manager
         GERALD I. CETRULO, III                        Senior Vice President of Sales,             None
         140 West Parkway                              Regional Sales Manager
         Pompton Plains, NJ  07444
         JONATHAN G. EVANS                             Senior Vice President of Sales              None
         222 Fairmont Way
         Ft. Lauderdale, FL  33326
         BRADLEY W. LARSON                             Senior Vice President of Sales,             None
         367 Bryan Drive                               Regional Sales Manager
         Alamo, CA  94526
         BRUCE TUCKEY                                  Senior Vice President of Sales              None
         41644 Chathman Drive
         Novi, MI  48375
         ANDREW VEASEY                                 Senior Vice President of Sales              None
         14 Woodside Drive
         Rumson, NJ  07760
    
</TABLE>

<PAGE>

                                                               File No. 2-80168
                                                                       811-3596
PART C.      OTHER INFORMATION (continued)
   
<TABLE>
<CAPTION>
                                              Seligman Financial Services, Inc.
                                              ---------------------------------
                                                    As Of March 31, 1998
                                                    --------------------
                 (1)                                         (2)                                          (3)
          Name and Principal                          Positions and Offices                       Positions and Offices
          Business Address                              With Underwriter                            With Registrant
          ----------------                              ----------------                            --------------
<S>      <C>                                           <C>                                         <C>
         MICHELLE L. MCCANN                            Vice President, Manager, Retirement         None
                                                       Plans Marketing
         SCOTT H. NOVAK                                Vice President, Insurance Product           None
                                                       Manager
         MICHAEL R. SANDERS                            Vice President, Product Manager             None
                                                       Managed Money Services
         CHARLES L. VON BREITENBACH, II*               Vice President, Product Manager             None
                                                       Managed Money Services
         ROBERT T. HAUSLER*                            Vice President, Global Mutual Funds,        None
                                                       Product Management
         MARSHA E. JACOBY*                             Vice President, Offshore Funds              None
         WILLIAM W. JOHNSON*                           Vice President, Order Desk                  None
         TRACY A. SALOMON*                             Vice President, Retirement                  None
                                                       Marketing Manager
         HELEN SIMON*                                  Vice President, Sales                       None
                                                       Administration Manager
         J. BRERETON YOUNG*                            Vice President, Mutual Funds                None
                                                       Product Manager
         PETER J. CAMPAGNA                             Vice President, Regional Retirement         None
         1130 Green Meadow Court                       Plans Manager
         Acworth, GA  30102
         MASON S. FLINN                                Vice President, Regional Retirement         None
         159 Varennes                                  Plans Manager
         San Francisco, CA  94133
         CHARLES E. WENZEL                             Vice President, Regional Retirement         None
         703 Greenwood Road                            Plans Manager
         Wilmington, DE  19807
         JAMES R. BESHER                               Regional Vice President                     None
         14000 Margaux Lane
         Town & Country, MO  63017
         RICHARD B. CALLAGHAN                          Regional Vice President                     None
         7821 Dakota Lane
         Orland Park, IL  60462
         BRADFORD C. DAVIS                             Regional Vice President                     None
         241 110th Avenue SE
         Bellevue, WA  98004
         CHRISTOPHER J. DERRY                          Regional Vice President                     None
         2380 Mt. Lebanon Church Road
         Alvaton, KY  42122
         KENNETH DOUGHERTY                             Regional Vice President                     None
         8640 Finlarig Drive
         Dublin, OH  43017
         ANDREW DRALUCK                                Regional Vice President                     None
         4032 E. Williams Drive
         Phoenix, AZ  85024
         EDWARD S. FINOCCHIARO                         Regional Vice President                     None
         120 Screenhouse Lane
         Duxbury, MA  02332
         MICHAEL C. FORGEA                             Regional Vice President                     None
         32 W. Anapamu Street #186
         Santa Barbara, CA  93101
</TABLE>
    

<PAGE>

                                                               File No. 2-80168
                                                                       811-3596
PART C.    OTHER INFORMATION (continued)

   
<TABLE>
<CAPTION>
                                              Seligman Financial Services, Inc.
                                              ---------------------------------
                                                    As Of March 31, 1998
                                                    --------------------
                 (1)                                         (2)                                          (3)
         Name and Principal                            Positions and Offices                       Positions and Offices
         Business Address                              With Underwriter                            With Registrant
         ----------------                              ----------------                            ---------------
<S>      <C>                                           <C>                                         <C>
         DAVID L. GARDNER                              Regional Vice President                     None
         2403 Cayenne Drive
         McKinney, TX  75070
         CARLA A. GOEHRING                             Regional Vice President                     None
         11426 Long Pine Drive
         Houston, TX  77077
         T. WAYNE KNOWLES                              Regional Vice President                     None
         104 Morninghills Court
         Cary, NC  27511
         JUDITH L. LYON                                Regional Vice President                     None
         7015 Harbour Landing
         Alpharetta, GA  30005
         DAVID MEYNCKE                                 Regional Vice President                     None
         4957 Cross Pointe Drive
         Oldsmar, FL  34677
         TIM O'CONNELL                                 Regional Vice President                     None
         11908 Acacia Glen Court
         San Diego, CA  92128
         THOMAS PARNELL                                Regional Vice President                     None
         1575 Edgecomb Road
         St. Paul, MN  55116
         JULIANA PERKINS                               Regional Vice President                     None
         2348 Adrian Street
         Newbury Park, CA  91320
         DAVE PETZKE                                   Regional Vice President                     None
         4016 Saint Lucia Street
         Boulder, CO  80301
         NICHOLAS ROBERTS                              Regional Vice President                     None
         200 Broad Street, Apt. 2225
         Stamford, CT  06901
         DIANE H. SNOWDEN                              Regional Vice President                     None
         11 Thackery Lane
         Cherry Hill, NJ  08003
         STEVE WILSON                                  Regional Vice President                     None
         83 Kaydeross Park
         Saratoga Springs, NY  12866
         KELLI A. WIRTH-DUMSER                         Regional Vice President                     None
         7121 Jardiniere Court
         Charlotte, NC  28226
         FRANK J. NASTA*                               Secretary                                   Secretary
         AURELIA LACSAMANA*                            Treasurer                                   None
         JEFFREY S. DEAN*                              Assistant Vice President, Marketing         None
         SANDRA FLORIS*                                Assistant Vice President, Order Desk        None
         KEITH LANDRY*                                 Assistant Vice President, Order Desk        None
         GAIL S. CUSHING*                              Assistant Vice President, National          None
                                                       Accounts Manager
         JOSEPH M. MCGILL*                             Assistant Vice President and                None
                                                       Compliance Officer
         JACK TALVY*                                   Assistant Vice President, Internal          None
                                                       Marketing Services Manager
         JOYCE PERESS*                                 Assistant Secretary                         None
</TABLE>
    

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

<PAGE>

                                                               File No. 2-80168
                                                                       811-3596
PART C.      OTHER INFORMATION (continued)

       (c) Not applicable.

ITEM 30.     LOCATION OF ACCOUNTS AND RECORDS

   
                           (1)    Investors Fiduciary Trust Company
                                  801 Pennsylvania
                                  Kansas City, Missouri 64105 AND
                           (2)    Seligman Data Corp.
                                  100 Park Avenue
                                  New York, NY  10017

ITEM 31.     MANAGEMENT  SERVICES - Seligman Data Corp. ("SDC") the Registrant's
             shareholder  service  agent,  has  an  agreement  with  First  Data
             Investor Services Group ("FDISG")  pursuant to which FDISG provides
             a data  processing  system for certain  shareholder  accounting and
             recordkeeping  functions  performed by SDC, which commenced in July
             1990.  For the years ended  December 31, 1997,  1996 and 1995,  the
             approximate cost of these services were:
    

                                       1997          1996           1995
                                       ----          ----           ----

   
                  Class A Shares   $1,347,400     $1,260,000     $446,000
                  Class B Shares      172,200         28,600           --
                  Class D Shares      312,900        317,000      297,000
    

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

<PAGE>


                                                               File No. 2-80168
                                                                       811-3596
                                   SIGNATURES

         Pursuant to the  requirements  of the  Securities  Act of 1933, and the
Investment  Company Act of 1940, the  Registrant  certifies that it meets all of
the requirements of this Post-Effective  Amendment pursuant to Rule 485(b) under
the Securities Act of 1993 and has duly caused this Post-Effective Amendment No.
19 to its Registration  Statement to be signed on its behalf by the undersigned,
thereunto duly  authorized,  in the City of New York,  State of New York, on the
29th day of April, 1998.

                              SELIGMAN COMMUNICATIONS AND INFORMATION FUND, INC.


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



     Pursuant  to  the  requirements  of the  Securities  Act of  1933  and  the
Investment  Company Act of 1940, this  Post-Effective  Amendment No. 19 has been
signed  below by the  following  persons in the  capacities  indicated  on April
29, 1998.


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


/s/  WILLIAM C. MORRIS                Chairman of the Board (Principal executive
- ----------------------------------    officer) and Director
     William C. Morris*              



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



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



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

<PAGE>

                                                               File No. 2-80168
                                                                       811-3596
               SELIGMAN COMMUNICATIONS AND INFORMATION FUND, INC.
                     Post-Effective Amendment No. 19 to the
                       Registration Statement of Form N-1A

                                  EXHIBIT INDEX

Form N-1a Item No.              Description
- ------------------              -----------

24(b)(7)(a)                     Deferred Compensation Plan for Directors

24(b)(11)                       Consent of Independent Auditors

24(b)(17)                       Financial Data Schedules

Other Exhibits                  Power of Attorney






                    DEFERRED COMPENSATION PLAN FOR DIRECTORS

                                       OF

               SELIGMAN COMMUNICATIONS AND INFORMATION FUND, INC.
                                    ("FUND")


1. ELECTION TO DEFER PAYMENTS. Any member of the Board of Directors (herein, a
"Director") of the Fund may elect to have payment of that Director's annual
retainer or meeting fees or both for Board service deferred as provided in this
Plan. The election shall be made in writing prior to, and to take effect from,
the beginning of a calendar year. For any Director in the year in which this
Plan is adopted or for a person elected a director in other than the last
calendar month of a year, the election shall be made within 30 days after that
event and prior to, and to take effect from, the beginning of the calendar
quarter next ensuing after that event. Elections shall continue in effect until
terminated in writing, any such termination to take effect on the first day of
the calendar year beginning after receipt of the notice of termination. An
election shall be irrevocable as to payments deferred in conformity with that
election.

2. DEFERRED PAYMENT ACCOUNT. Each deferred retainer or fee shall be credited at
the time when it otherwise would have been payable to an account to be
established in the name of the Director on the books of the Fund (the "Deferred
Payment Account") adjusted for notional investment experience as hereinafter
described.

3. RETURN ON DEFERRED PAYMENT ACCOUNT BALANCE. (a) For purposes of measuring the
investment return on his Deferred Payment Account, the Director may elect to
have the aggregate amount of his deferred compensation (or a specified portion
thereof) receive a return (i) at a rate equal to the return earned on
three-month U.S. Treasury Bills at the beginning of each calendar quarter (the
"Treasury Bill Rate") and such interest shall be credited to the account
quarterly at the end of each calendar quarter, or (ii) at a rate of return
(positive or negative) equal to the rate of return on the shares of any of the
registered investment companies managed by J. & W. Seligman & Co. Incorporated
("Seligman") or any other entity controlling, controlled by, or under common
control with (as such terms are defined in the Investment Company Act of 1940)
Seligman (each, a "Notional Fund"), assuming reinvestment of dividends and
distributions from the Notional Funds. (b) A Director may amend his designation
of investment return as of the end of each calendar quarter by giving written
notice to the President of the Fund at least 30 days prior to the end of such
calendar quarter. A timely change to a Director's designation of investment
return shall become effective on the first day of the calendar quarter following
receipt by the President of the Fund (the "President").

4. NOTIONAL INVESTMENT EXPERIENCE. Amounts credited to a Deferred Payment
Account shall be periodically adjusted for notional investment experience. In
each case such notional investment experience shall be determined by treating
the Deferred Payment Account as though an equivalent dollar amount had been
invested and reinvested in one or more of the Notional Funds. The Notional Funds
used as a basis for determining notional investment experience with respect to
any Director's Deferred Payment Account shall be designated by the Director in
writing by instrument of election substantially in the form attached hereto as
Exhibit C and may be changed prospectively by similar written election effective
as of the first day of any calendar quarter. The President may from time to time
limit the Notional Funds available for purposes of such election. If at any time
any Notional Fund that has previously been
                                                                          (3/98)

<PAGE>

designated by a Director as a notional investment shall cease to exist or shall
be unavailable for any reason, or if the Director fails to designate one or more
Notional Funds pursuant to this Section 4, the President may, at his discretion
and upon notice to the Director, treat any amounts notionally invested in such
Notional Fund (whether representing past amounts credited to a Director's
Deferred Payment Account or subsequent fee deferrals or both) as having been
invested at the Treasury Bill Rate, only until such time as the Director shall
have made another investment election in accordance with the foregoing
procedures. Deferred Payment Accounts shall continue to be adjusted for notional
investment experience until distributed in full in accordance with the
distribution method elected by the Director pursuant to Section 5 hereof.

5. PAYMENT OF DEFERRED AMOUNTS. All amounts credited to an account pursuant to
any election by the Director made as provided in Section 1 hereof shall be paid
to the Director

         (a)      in, or beginning in, the calendar year following the calendar
                  year in which the Director ceases to be a Director of the
                  Fund, or

         (b)      in, or beginning in, the calendar year following the earlier
                  of the calendar year in which the Director ceases to be a
                  Director of the Fund or attains age 70,

                  and shall be paid

         (c)      in a lump sum payable on the first day of the calendar year in
                  which payment is to be made, or

         (d)      in 10 or fewer installments, payable on the first day of each
                  year commencing with the calendar year in which payment is to
                  begin, all as the Director shall specify in making the
                  election. If the payment is to be made in installments, the
                  amount of each installment shall be equal to a fraction of the
                  total of the amounts in the account at the date of the payment
                  the numerator of which shall be one and the denominator of
                  which shall be the then remaining number of unpaid
                  installments (including the installment then to be paid). If
                  the Director dies at any time before all amounts in the
                  account have been paid, such amounts shall be paid at that
                  time in a lump sum to the beneficiary or beneficiaries
                  designated by the Director in writing to receive such payments
                  or in the absence of such a designation to the estate of the
                  Director.

The Board of Directors may, in the case of an unforseeable emergency, at its
sole discretion accelerate the payment of any unpaid amount for any or all
Directors. For purposes of this paragraph, an unforseeable emergency is severe
financial hardship to the Director resulting from a sudden and unexpected
illness or accident of the Director or of a dependent (as defined in section
152(a) of the Internal Revenue Code) of the Director, loss of the Director's
property due to casualty, or other similar extraordinary and unforseeable
circumstances arising as a result of events beyond the control of the Director.
Payment due to an unforseeable emergency may not be made to the extent that such
hardship is or may be relieved (i) through reimbursement or compensation by
insurance or otherwise; (ii) by liquidation of the Director's assets, to the
extent the liquidation of such assets would not itself cause severe financial
hardship, or (iii) by cessation of deferrals under the Plan. Examples of what
are not considered to be unforseeable emergencies include the need to send a
Director's child to college or the desire to purchase a home. 
                                                                         (3/98)

<PAGE>

Withdrawals of amounts because of an  unforseeable  emergency are only permitted
to the extent reasonably necessary to satisfy the emergency need.

6. ASSIGNMENT. No deferred amount or unpaid portion thereof may be assigned or
transferred by the Director except by will or the laws of descent and
distribution.

7. WITHHOLDING TAXES. The Fund shall deduct from all payments any federal, state
or local taxes and other charges required by law to be withheld with respect to
such payments.

8. NATURE OF RIGHTS; NONALIENATION. A Director's rights to deferred payment
under the Plan shall be solely those of an unsecured general creditor of the
Fund, and any payments by the Fund pursuant to the Plan will be made solely from
the Fund's general assets and property. The Fund will be under no obligation to
purchase, hold or dispose of any investment for the specific benefit of any
Director but, if the Fund should choose to purchase shares of any Notional Fund
in order to cover all or a portion of its obligations under the Plan, then such
investments will continue to be a part of the general assets and property of the
Fund. A Director's rights under the Plan may not be transferred, assigned,
pledged or otherwise alienated, and any attempt by the Director to do so shall
be null and void.

9. STATUS OF DIRECTOR. Nothing in the Plan nor any election hereunder shall be
construed as conferring on any Director the right to remain a Director of the
Fund or to receive fees at any particular rate.

10. AMENDMENT AND ACCELERATION. The Board of Directors may at any time at its
sole discretion amend or terminate this Plan, provided that no such amendment or
termination shall adversely affect the right of Directors to receive deferred
amounts credited to their account.

11. ADMINISTRATION. The Plan shall be administered by the President or by such
person or persons as the President may designate to carry out administrative
functions hereunder. The President shall have complete discretion to interpret
and administer the Plan in accordance with its terms, and his determinations
shall be binding on all persons.


Amended as of March 19, 1998
                                                                         (3/98)


<PAGE>

                                                                      EXHIBIT A

                          SELIGMAN INVESTMENT COMPANIES

                           DEFERRED COMPENSATION PLAN
                                  ELECTION FORM

         Pursuant to the Deferred Compensation Plan for Directors, as amended as
of March 19, 1998, (the "Plan") adopted by each of the Seligman Investment
Companies (the "Funds"), I hereby elect to have ___% of my annual retainer fees
and ___% of my meeting fees for service to the Funds deferred as provided in the
Plan. This election will take effect at such time as is provided in section 1 of
the Plans, and shall continue in effect until terminated in writing, any such
termination to take effect of the first day of the next calendar year beginning
after receipt of the notice of termination.

         The Deferred Compensation Plan Return Designation Form attached hereto
indicates the percentage of each of the above amounts that should earn the
designated returns. Such designations shall remain in effect until changed by
submission of a new form as provided in the Plan.

         All amounts deferred with respect to any Fund and the earnings thereon
made pursuant to any election by me shall be credited to an account for my
benefit and shall be paid to me:

        CHECK (a) OR (b)
                    (a) in, or beginning in, the calendar year following the
                        calendar year in which I cease to be a director of the
        ------          Fund, or

                           
                    (b) in, or beginning in, the calendar year following the
                        earlier of the calendar year in which I cease to be a
        ------          director of the Fund or attain age 70,

                        and shall be paid

        CHECK (c) OR (d)
                    (c) in a lump sum payable on the first day of the calendar
        ------          year in which payment is to be made, or

                    (d) in 10 or fewer installments, payable on the first day of
                        each year commencing with the calendar year in which
        ------          payment is to begin.

         IF (d) IS SELECTED, ENTER NUMBER OF ANNUAL INSTALLMENTS _________.

         If the payment is to be made in installments, the amount of each
installment shall be equal to a fraction of the total of the amounts in the
account at the date of the payment the numerator of which shall be one and the
denominator of which shall be the then remaining number of unpaid installments
(including the installment then to be paid). If I die at any time before all
amounts in the account have been paid, such amounts shall be paid at that time
in a lump sum to the beneficiary or beneficiaries designated by me on the
attached Beneficiary Designation Form or in the absence of such a designation to
my estate.


- --------------------------------         --------------------------------------
Date                                     Signature
                                                                         (3/98)
<PAGE>

                                                                      EXHIBIT B

                           DEFERRED COMPENSATION PLAN
                          BENEFICIARY DESIGNATION FORM

I hereby designate the following beneficiary or beneficiaries to receive at my
death the amounts held in my Deferred Payment Accounts from my participation in
the Deferred Compensation Plans for Directors/Trustees of all registered
investment companies advised by J. & W. Seligman & Co. Incorporated for which I
serve as a director or trustee (the "Plans").

A.       PRIMARY BENEFICIARY(IES)

1.       Name:                              % Share:
              -----------------------------         ----------------------------

         Address:
                 ---------------------------------------------------------------

         Relationship:            DOB:        Social Security #:
                      ----------      -------                   ----------------

         Trustee Name and Date (if beneficiary is a trust):
                                                           ---------------------

         Trustee of Trust:
                          ------------------------------------------------------

2.       Name:                              % Share:                            
              -----------------------------         ----------------------------
                                                                                
         Address:                                                               
                 ---------------------------------------------------------------
                                                                                
         Relationship:            DOB:        Social Security #:                
                      ----------      -------                   ----------------
                                                                                
         Trustee Name and Date (if beneficiary is a trust):                     
                                                           ---------------------
                                                                                
         Trustee of Trust:                                                      
                          ------------------------------------------------------


B.       CONTINGENT BENEFICIARY(IES)

1.       Name:                              % Share:
              -----------------------------         ----------------------------

         Address:
                 ---------------------------------------------------------------

         Relationship:            DOB:        Social Security #:
                      ----------      -------                   ----------------

         Trustee Name and Date (if beneficiary is a trust):
                                                           ---------------------

         Trustee of Trust:
                          ------------------------------------------------------

2.       Name:                              % Share:                            
              -----------------------------         ----------------------------
                                                                                
         Address:                                                               
                 ---------------------------------------------------------------
                                                                                
         Relationship:            DOB:        Social Security #:                
                      ----------      -------                   ----------------
                                                                                
         Trustee Name and Date (if beneficiary is a trust):                     
                                                           ---------------------
                                                                                
         Trustee of Trust:                                                      
                          ------------------------------------------------------
                                                                         (3/98)

<PAGE>

I understand that I may revoke or amend the above designation at any time. I
understand that payment will be made to my Contingent Beneficiary(ies) only if
there is no surviving Primary Beneficiary(ies). I further understand that if I
am not survived by any Primary or Contingent Beneficiaries, payment will be made
to my estate as set forth under the Plans.


- --------------------------------          --------------------------------------
Date                                      Signature


                                          --------------------------------------
                                          Participant's Name Printed

                                                                         (3/98)
<PAGE>

                                                                      EXHIBIT C

                          SELIGMAN INVESTMENT COMPANIES
                           DEFERRED COMPENSATION PLANS
                             RETURN DESIGNATION FORM
<TABLE>
<CAPTION>

I elect to have my deferred compensation for all registered investment companies
advised by J. & W. Seligman & Co. Incorporated for which I serve as a Director
or Trustee deemed to be invested as specified below:

- ------------------------------------------------------- --------------- ---------------
                                                                         % Allocation
                                                        % Allocation    for accumulated
                                                        for future fees     balances
- ------------------------------------------------------- --------------- ---------------
<S>                                                     <C>             <C>
At the prevailing three-month U.S. Treasury Bill Rate
- ------------------------------------------------------- --------------- ---------------
Seligman Capital Fund, Inc.
- ------------------------------------------------------- --------------- ---------------
Seligman Cash Management Fund, Inc.
- ------------------------------------------------------- --------------- ---------------
Seligman Common Stock Fund, Inc.
- ------------------------------------------------------- --------------- ---------------
Seligman Communications and Information Fund, Inc.
- ------------------------------------------------------- --------------- ---------------
Seligman Frontier Fund, Inc.
- ------------------------------------------------------- --------------- ---------------
Seligman Growth Fund, Inc.
- ------------------------------------------------------- --------------- ---------------
Seligman Henderson Global Fund Series, Inc. -
 Seligman Henderson Emerging Markets Growth Fund
- ------------------------------------------------------- --------------- ---------------
Seligman Henderson Global Fund Series, Inc. -
 Seligman Henderson Global Growth Opportunities Fund
- ------------------------------------------------------- --------------- ---------------
Seligman Henderson Global Fund Series, Inc. -
 Seligman Henderson Global Smaller Companies Fund
- ------------------------------------------------------- --------------- ---------------
Seligman Henderson Global Fund Series, Inc. -
 Seligman Henderson Global Technology Fund
- ------------------------------------------------------- --------------- ---------------
Seligman Henderson Global Fund Series, Inc. -
 Seligman Henderson International Fund
- ------------------------------------------------------- --------------- ---------------
Seligman High Income Fund Series -
 Seligman High-Yield Bond Series
- ------------------------------------------------------- --------------- ---------------
Seligman High Income Fund Series -
 Seligman U.S. Government Securities Series
- ------------------------------------------------------- --------------- ---------------
Seligman Income Fund, Inc.
- ------------------------------------------------------- --------------- ---------------
Seligman Value Fund Series, Inc. -
 Seligman Large-Cap Value Fund
- ------------------------------------------------------- --------------- ---------------
Seligman Value Fund Series, Inc. -
 Seligman Small-Cap Value Fund
- ------------------------------------------------------- --------------- ---------------
Tri-Continental Corporation
- ------------------------------------------------------- --------------- ---------------
Total                                                         100%           100%
- ------------------------------------------------------- --------------- ---------------
</TABLE>


         I acknowledge that I may amend this Return Designation in the manner,
and at such time as permitted, under the Plans. Furthermore, I acknowledge that
in certain circumstances, and pursuant to Section 4 of the Plans, the President
may at his discretion, and upon notice to me, disregard the designations made
above and cause all or a portion of my Deferred Account to receive a return
equal to the prevailing three-month U.S. Treasury Bill Rate.

                                                                         (3/98)
<PAGE>

- ---------------------------                      -------------------------------
Date                                             Signature








CONSENT OF INDPENDENT AUDITORS

Seligman Communications and Information Fund, Inc.:

We consent to the use in Post-Effective Amendment No. 19 to Registration
Statement No. 2-80168 of our report dated January 30, 1998, appearing in the
Annual Report of Shareholders for the year ended December 31, 1997, which is
incorporated by reference in the Statement of Additional Information, which is
included in such Registration Statement, and to the references to us under the
captions "Financial Highlights" in the Prospectus and "General Information" in
the Statement of Additional Information, which are also included in such
Registration Statement.

DELOITTE & TOUCHE LLP
New York, New York
April 24, 1998





                                POWER OF ATTORNEY



KNOW ALL MEN BY  THESE  PRESENTS,  that the  undersigned  director  of  SELIGMAN
COMMUNICATIONS  AND  INFORMATION  FUND,  INC.,  a  Maryland  corporation,  which
proposes to file with the  Securities  and Exchange  Commission  an Amendment to
Registration   Statement  on  Form  N-1A  and  further  amendments  thereto,  as
necessary,  under the Securities  Act of 1933 and the Investment  Company Act of
1940, as amended, hereby constitutes and appoints William C. Morris and Brian T.
Zino, and each of them individually,  his attorneys-in-fact and agent, with full
power of  substitution  and  resubstitution,  for in his name and stead,  in his
capacity  as such  director,  to sign and file such  Amendment  to  Registration
Statement or further amendments  thereto,  and any and all applications or other
documents to be filed with the  Securities  and Exchange  Commission  pertaining
thereto,  with full power and  authority  to do and  perform all acts and things
requisite and necessary to be done on the premises.

Executed this 1st day of April, 1998.




                                              /s/ RICHARD R. SCHMALTZ  (L.S.)
                                              --------------------------------
                                                  Richard R. Schmaltz

                                                                       (3/98)

<TABLE> <S> <C>

<ARTICLE> 6
<SERIES>
        <NUMBER>        001
        <NAME> SELIGMAN COMMUNICATIONS & INFORMATION FUND, INC. CLASS A
<MULTIPLIER> 1000
       
<S>                             <C>
<PERIOD-TYPE>                  12-MOS
<FISCAL-YEAR-END>                          DEC-31-1997
<PERIOD-END>                               DEC-31-1997
<INVESTMENTS-AT-COST>                          4361110
<INVESTMENTS-AT-VALUE>                         4573370
<RECEIVABLES>                                    89306
<ASSETS-OTHER>                                     728
<OTHER-ITEMS-ASSETS>                                 0
<TOTAL-ASSETS>                                 4663404
<PAYABLE-FOR-SECURITIES>                         71467
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                        33746
<TOTAL-LIABILITIES>                             105213
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                       4336285
<SHARES-COMMON-STOCK>                           133646<F1>
<SHARES-COMMON-PRIOR>                           102702<F1>
<ACCUMULATED-NII-CURRENT>                        (114)
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                           9760
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                        212260 
<NET-ASSETS>                                   3107481<F1>
<DIVIDEND-INCOME>                                 2520<F1>
<INTEREST-INCOME>                                 6555<F1>
<OTHER-INCOME>                                       0<F1>
<EXPENSES-NET>                                 (43731)<F1>
<NET-INVESTMENT-INCOME>                        (34656)<F1>
<REALIZED-GAINS-CURRENT>                        909729
<APPREC-INCREASE-CURRENT>                     (144025)
<NET-CHANGE-FROM-OPS>                           708462
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                            0<F1>
<DISTRIBUTIONS-OF-GAINS>                      (621494)<F1>
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                          60270<F1>
<NUMBER-OF-SHARES-REDEEMED>                    (52639)<F1>
<SHARES-REINVESTED>                              23313<F1>
<NET-CHANGE-IN-ASSETS>                         1284692
<ACCUMULATED-NII-PRIOR>                          (102)
<ACCUMULATED-GAINS-PRIOR>                        63539
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                            25318<F1>
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                                  43731<F1>
<AVERAGE-NET-ASSETS>                           2852915<F1>
<PER-SHARE-NAV-BEGIN>                            23.51<F1>
<PER-SHARE-NII>                                 (0.33)<F1>
<PER-SHARE-GAIN-APPREC>                           6.01<F1>
<PER-SHARE-DIVIDEND>                                 0<F1>
<PER-SHARE-DISTRIBUTIONS>                       (5.94)<F1>
<RETURNS-OF-CAPITAL>                                 0<F1>
<PER-SHARE-NAV-END>                              23.25<F1>
<EXPENSE-RATIO>                                   1.53<F1>
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
<FN>
<F1>Class A only.  All other data are fund level.
</FN>
        

</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<SERIES>
        <NUMBER>        002
        <NAME> SELIGMAN COMMUNICATIONS & INFORMATION FUND, INC. CLASS B
<MULTIPLIER> 1000
       
<S>                             <C>
<PERIOD-TYPE>                  12-MOS
<FISCAL-YEAR-END>                          DEC-31-1997
<PERIOD-END>                               DEC-31-1997
<INVESTMENTS-AT-COST>                          4361110
<INVESTMENTS-AT-VALUE>                         4573370
<RECEIVABLES>                                    89306
<ASSETS-OTHER>                                     728
<OTHER-ITEMS-ASSETS>                                 0
<TOTAL-ASSETS>                                 4663404
<PAYABLE-FOR-SECURITIES>                         71467
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                        33746
<TOTAL-LIABILITIES>                             105213
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                       4336285
<SHARES-COMMON-STOCK>                            23035<F1>
<SHARES-COMMON-PRIOR>                             5343<F1>
<ACCUMULATED-NII-CURRENT>                        (114)
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                           9760
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                        212260 
<NET-ASSETS>                                    505342<F1>
<DIVIDEND-INCOME>                                  249<F1>
<INTEREST-INCOME>                                  648<F1>
<OTHER-INCOME>                                       0<F1>
<EXPENSES-NET>                                  (6362)<F1>
<NET-INVESTMENT-INCOME>                         (5465)<F1>
<REALIZED-GAINS-CURRENT>                        909729
<APPREC-INCREASE-CURRENT>                     (144025)
<NET-CHANGE-FROM-OPS>                           708462
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                            0<F1>
<DISTRIBUTIONS-OF-GAINS>                       (87968)<F1>
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                          16146<F1>
<NUMBER-OF-SHARES-REDEEMED>                     (2033)<F1>
<SHARES-REINVESTED>                               3579<F1>
<NET-CHANGE-IN-ASSETS>                         1284692
<ACCUMULATED-NII-PRIOR>                          (102)
<ACCUMULATED-GAINS-PRIOR>                        63539
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                             2477<F1>
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                                   6362<F1>
<AVERAGE-NET-ASSETS>                            278447<F1>
<PER-SHARE-NAV-BEGIN>                            22.62<F1>
<PER-SHARE-NII>                                 (0.50)<F1>
<PER-SHARE-GAIN-APPREC>                           5.76<F1>
<PER-SHARE-DIVIDEND>                                 0<F1>
<PER-SHARE-DISTRIBUTIONS>                       (5.94)<F1>
<RETURNS-OF-CAPITAL>                                 0<F1>
<PER-SHARE-NAV-END>                              21.94<F1>
<EXPENSE-RATIO>                                   2.28<F1>
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
<FN>
<F1>Class B only.  All other data are fund level.
</FN>
        

</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<SERIES>
        <NUMBER>        004
        <NAME> SELIGMAN COMMUNICATIONS & INFORMATION FUND, INC. CLASS D
<MULTIPLIER> 1000
       
<S>                             <C>
<PERIOD-TYPE>                  12-MOS
<FISCAL-YEAR-END>                          DEC-31-1997
<PERIOD-END>                               DEC-31-1997
<INVESTMENTS-AT-COST>                          4361110
<INVESTMENTS-AT-VALUE>                         4573370
<RECEIVABLES>                                    89306
<ASSETS-OTHER>                                     728
<OTHER-ITEMS-ASSETS>                                 0
<TOTAL-ASSETS>                                 4663404
<PAYABLE-FOR-SECURITIES>                         71467
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                        33746
<TOTAL-LIABILITIES>                             105213
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                       4336285
<SHARES-COMMON-STOCK>                            43142<F1>
<SHARES-COMMON-PRIOR>                            32645<F1>
<ACCUMULATED-NII-CURRENT>                        (114)
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                           9760
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                        212260 
<NET-ASSETS>                                    945368<F1>
<DIVIDEND-INCOME>                                  768<F1>
<INTEREST-INCOME>                                 1995<F1>
<OTHER-INCOME>                                       0<F1>
<EXPENSES-NET>                                 (19884)<F1>
<NET-INVESTMENT-INCOME>                        (17121)<F1>
<REALIZED-GAINS-CURRENT>                        909729
<APPREC-INCREASE-CURRENT>                     (144025)
<NET-CHANGE-FROM-OPS>                           708462
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                            0<F1>
<DISTRIBUTIONS-OF-GAINS>                      (196816)<F1>
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                          20692<F1>
<NUMBER-OF-SHARES-REDEEMED>                    (18135)<F1>
<SHARES-REINVESTED>                               7940<F1>
<NET-CHANGE-IN-ASSETS>                         1284692
<ACCUMULATED-NII-PRIOR>                          (102)
<ACCUMULATED-GAINS-PRIOR>                        63539
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                             7728<F1>
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                                  19884<F1>
<AVERAGE-NET-ASSETS>                            871331<F1>
<PER-SHARE-NAV-BEGIN>                            22.61<F1>
<PER-SHARE-NII>                                 (0.50)<F1>
<PER-SHARE-GAIN-APPREC>                           5.74<F1>
<PER-SHARE-DIVIDEND>                                 0<F1>
<PER-SHARE-DISTRIBUTIONS>                       (5.94)<F1>
<RETURNS-OF-CAPITAL>                                 0<F1>
<PER-SHARE-NAV-END>                              21.91<F1>
<EXPENSE-RATIO>                                   2.28<F1>
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
<FN>
<F1>Class D only.  All other data are fund level.
</FN>
        

</TABLE>


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