SELIGMAN COMMON STOCK FUND INC
485BPOS, 1996-04-19
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<PAGE>
 
                                                                File No. 2-10835
                                                                         811-234


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

                                   FORM N-1A

     REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933           [_]     
                                                                               
       Pre-Effective Amendment No. __                                  [_]     
                                                                               
                                                                               
       Post-Effective Amendment No.  74                                [X]     
                                     --      

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

    
       Amendment No.  22                                               [X]
                      --                                         

________________________________________________________________________________

                       SELIGMAN COMMON STOCK 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):

[_]  upon filing pursuant to paragraph     [_]  on (date) pursuant to paragraph
     (b) of rule 485                            (a)(i) of rule 485

     
[X]  on April 22, 1996 pursuant to         [_]  75 days after filing pursuant to
     paragraph (b) of rule 485                  paragraph (a)(ii) of rule 485
 
[_]  60 days after filing pursuant to      [_]  on (date) pursuant to paragraph
     paragraph (a)(i) of rule 485               (a)(ii) of rule 485.

If appropriate, check the following box:

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

    
Registrant has registered an indefinite amount of securities under the
Securities Act of 1933 pursuant to Rule 24f-2(a)(1) and a Rule 24f-2 Notice for
Registrant's most recent fiscal year was filed with the Commission on February
20, 1996.     
<PAGE>
 
                                                                File No. 2-10835
                                                                         811-234


    
                       SELIGMAN COMMON STOCK FUND, INC.
                        FORM N-1A CROSS REFERENCE SHEET
                        POST-EFFECTIVE AMENDMENT NO. 74
                            Pursuant to Rule 481(a)
                            -----------------------     

<TABLE>
<CAPTION>
Item in Part A of Form N-1A                  Location in Prospectus
- ---------------------------                  ----------------------
<S>  <C>                                     <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            Management Services
     Performance

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

<CAPTION>  
Item in Part B of Form N-1A                  Location in Statement of Additional
- ---------------------------                  -----------------------------------
                                             Information
                                             -----------
<S>  <C>                                     <C>
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 
     of Securities being Offered             Shares; Valuation
 
20.  Tax Status                              Federal Income Taxes (Prospectus)
     
21.  Underwriter                             Distribution Services
     
22.  Calculation of Performance Data         Performance
     
23.  Financial Statements                    Financial Statements
</TABLE>
<PAGE>
 
                       SELIGMAN COMMON STOCK FUND, INC.
                                100 Park Avenue
                              New York, NY 10017
                    New York City Telephone: (212) 850-1864
       Toll-Free Telephone: (800) 221-2450 all continental United States
     For Retirement Plan Information--Toll-Free Telephone: (800) 445-1777
 
                                                                 April 22, 1996
 
  Seligman Common Stock Fund, Inc. (the "Fund") is a mutual fund which invests
to produce favorable, but not the highest, current income and long-term growth
of both income and capital value, without exposing capital to undue risk. In-
vestment advisory and management services are provided to the Fund by J. & W.
Seligman & Co. Incorporated (the "Manager") and, to the extent requested by
the Manager in respect of foreign assets, Seligman Henderson Co. (the
"Subadviser"). The Fund's distributor is Seligman Financial Services, Inc., an
affiliate of the Manager. For a description of the Fund's investment objective
and policies, including the risk factors associated with an investment in the
Fund, see "Investment Objectives, Policies And Risks." There can be no assur-
ance that the Fund's investment objectives 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 B shares are sold without an initial sales load but are
subject to a contingent deferred sales load ("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 up to .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 sub-
ject to a CDSL of 1% imposed on certain redemptions within one year of pur-
chase, 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. See "Alternative Distribution System." Shares of the Fund
may be purchased through any authorized investment dealer.
 
  This Prospectus sets forth concisely the information a prospective investor
should know about the Fund before investing. Please read it carefully before
you invest and keep it for future reference. Additional information about the
Fund, including a Statement of Additional Information, has been filed with the
Securities and Exchange Commission. The Statement of Additional Information is
available upon request without charge by calling or writing the Fund at the
telephone numbers or 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.
 
                               TABLE OF CONTENTS
<TABLE>
<CAPTION>
                                      PAGE
<S>                                   <C>
Summary Of Fund Expenses.............   2
Financial Highlights.................   3
Alternative Distribution System......   4
Investment Objectives, Policies And
 Risks...............................   6
Management Services..................   7
Purchase Of Shares...................   9
Telephone Transactions...............  15
Redemption Of Shares.................  16
</TABLE>
<TABLE>
<CAPTION>
                                                                       PAGE
<S>                                                                    <C>
Administration, Shareholder Services And Distribution Plan............  18
Exchange Privilege....................................................  19
Further Information About Transactions In The Fund....................  21
Dividends And Distributions...........................................  21
Federal Income Taxes..................................................  22
Shareholder Information...............................................  23
Advertising The Fund's Performance....................................  24
Organization And Capitalization.......................................  25
</TABLE>
<PAGE>
 
                           SUMMARY OF FUND EXPENSES
<TABLE>   
<CAPTION>
                                   CLASS A         CLASS B         CLASS D
                                -------------- --------------- ----------------
                                (INITIAL SALES (DEFERRED SALES (DEFERRED SALES
SHAREHOLDER TRANSACTION              LOAD           LOAD             LOAD
EXPENSES                         ALTERNATIVE)   ALTERNATIVE)     ALTERNATIVE)
<S>                             <C>            <C>             <C>
 Maximum Sales Load Imposed on
  Purchases (as a percentage
  of offering price)..........       4.75%          None             None
 Sales Load on Reinvested
  Dividends...................        None          None             None
 Deferred Sales Load (as a
  percentage of original              
  purchase price or redemption        
  proceeds, whichever is              
  lower)......................        None     5% in 1st year  1% in first year
                                               4% in 2nd year  None thereafter
                                                3% in 3rd and                 
                                                  4th years                   
                                               2% in 5th year                 
                                               1% in 6th year                 
                                               None thereafter                 
 Redemption Fees..............        None          None             None
 Exchange Fees................        None          None             None

ANNUAL FUND OPERATING EXPENSES
 FOR 1995                          CLASS A        CLASS B*         CLASS D
                                   -------     --------------- ----------------
(as a percentage of average
 net assets)
 Management Fees..............        .65%           .65%            .65%
 12b-1 Fees...................        .24%          1.00%**         1.00%**
 Other Expenses...............        .21%           .21%            .21%
                                     -----          ----            -----
 Total Fund Operating
  Expenses....................       1.10%          1.86%           1.86%
                                     =====          ====            =====
</TABLE>    
   
  The purpose of this table is to assist investors in understanding the vari-
ous costs and expenses which shareholders of the Fund bear directly or indi-
rectly. The sales load on Class A shares is a one-time charge paid at the time
of purchase of shares. Reductions in sales loads are available in certain cir-
cumstances. The contingent deferred sales loads on Class B and Class D shares
are one-time charges paid only if shares are redeemed within six years or one
year of purchase, respectively. The management fees for Class A and Class D
shares have been restated to reflect the increase in the management fee rate
payable by the Fund, which was approved by shareholders on December 12, 1995
and became effective on January 1, 1996. The "Other Expenses" disclosed for
the Class D shares have been restated to reflect the expense allocation meth-
odology currently being used by the Fund. For more information concerning re-
ductions in sales loads and for a more complete description of the various
costs and expenses, see "Purchase Of Shares," "Redemption Of Shares" and "Man-
agement Services" herein. The Fund's Administration, Shareholder Services and
Distribution Plan to which the caption "12b-1 Fees" relates, is discussed un-
der "Administration, Shareholder Services and Distribution Plan" herein.     
<TABLE>   
<CAPTION>
                                              1 YEAR  3 YEARS 5 YEARS 10 YEARS
EXAMPLE                                       ------  ------- ------- --------
<S>                                           <C>     <C>     <C>     <C>
You would pay the following expenses on a
 $1,000 investment, assuming (1) 5% annual
 return and (2) redemption at the end of each
 time period:........................ Class A  $58      $81    $105     $175
                                      Class B+ $69      $88    $121     $198
                                      Class D  $29++    $58    $101     $218
</TABLE>    
 
THE EXAMPLE SHOULD NOT BE CONSIDERED A REPRESENTATION OF PAST OR FUTURE EX-
PENSES. ACTUAL EXPENSES MAY BE GREATER OR LESS THAN THOSE SHOWN AND THE 5% AN-
NUAL RETURN USED IN THIS EXAMPLE IS A HYPOTHETICAL RATE.
   
* Expenses for Class B shares are estimated because no shares of that Class
  were outstanding in the year ended December 31, 1995.     
   
** Includes an annual distribution fee of up to .75% and an annual service fee
   of up to .25%. Pursuant to the Rules of the National Association of Securi-
   ties Dealers, Inc., the aggregate deferred sales loads and annual distribu-
   tion 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.     
   
 + Assuming (1) 5% annual return and (2) no redemption at the end of the peri-
   od, the expenses on a $1,000 investment would be $19 for 1 year, $58 for 3
   years and $101 for 5 years. The expenses shown for the ten-year period re-
   flect the conversion of Class B shares to Class A after 8 years.     
   
++ Assuming (1) 5% annual return and (2) no redemption at the end of one year,
 the expenses on a $1,000 investment would be $19.     
 
                                       2
<PAGE>
 
                              FINANCIAL HIGHLIGHTS
   
  The financial highlights for the Fund's Class A 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 state-
ments and notes contained in the Fund's 1995 Annual Report, which is incorpo-
rated 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 tel-
ephone numbers or address provided on the cover page of this Prospectus. Finan-
cial highlights are not presented for the Class B shares because no shares of
that Class were outstanding during the periods set forth below.     
   
  The per share operating performance data is designed to allow investors to
trace the operating performance, on a per share basis, from the Fund's begin-
ning net asset value to its ending net asset value so that they may understand
what effect the individual items have on their investment, assuming it was held
throughout the period. Generally, the per share amounts are derived by con-
verting the actual dollar amounts incurred for each item, as disclosed in the
financial statements, to their equivalent per share amount.     
 
  The total return based on net asset value measures the Fund's performance as-
suming 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 in-
vestors may incur in purchasing or selling shares of the Fund. The total re-
turns for periods of less than one year are not annualized.
<TABLE>   
<CAPTION>
                                                              CLASS A
                     ------------------------------------------------------------------------------------------------------
                                                      YEAR ENDED DECEMBER 31
                     ------------------------------------------------------------------------------------------------------
                      1995O     1994O       1993      1992      1991      1990       1989      1988      1987        1986
                     --------  --------   --------  --------  --------  --------   --------  --------  --------    --------
<S>                  <C>       <C>        <C>       <C>       <C>       <C>        <C>       <C>       <C>         <C>
PER SHARE OPER-
 ATING
 PERFORMANCE:
Net asset value,
 beginning of
 period.........       $12.12    $13.47     $12.79    $12.54    $10.60    $12.24     $11.30    $11.06    $13.03      $14.06
                     --------  --------   --------  --------  --------  --------   --------  --------  --------    --------
Net investment
 income.........          .36       .38        .39       .39       .40       .38        .44       .43       .44         .48
Net realized and
 unrealized
 investment gain
 (loss).........         3.00      (.64)      1.49       .95      2.72      (.86)      2.52       .68      (.36)       2.36
                     --------  --------   --------  --------  --------  --------   --------  --------  --------    --------
Net realized and
 unrealizaed
 gain on foreign
 currency
 tranation......          .01        --         --        --        --        --         --        --        --          --
Increase
 (decrease) from
 investment
 operations.....         3.37      (.26)      1.88      1.34      3.12      (.48)      2.96      1.11       .08        2.84
Dividends paid..         (.36)     (.37)      (.38)     (.39)     (.40)     (.41)      (.43)     (.42)     (.45)       (.50)
Distributions
 from net gain
 realized.......         (.94)     (.72)      (.82)     (.70)     (.78)     (.75)     (1.59)     (.45)    (1.60)**    (3.37)
                     --------  --------   --------  --------  --------  --------   --------  --------  --------    --------
Net increase
 (decrease) in
 net asset
 value..........        (2.07)    (1.35)       .68       .25      1.94     (1.64)       .94       .24     (1.97)      (1.03)
                     --------  --------   --------  --------  --------  --------   --------  --------  --------    --------
Net asset value,
 end of period..       $14.19    $12.12     $13.47    $12.79    $12.54    $10.60     $12.24    $11.30    $11.06      $13.03
                     ========  ========   ========  ========  ========  ========   ========  ========  ========    ========
Total return
 based on net
 asset value....        28.17%    (1.89)%    14.86%    10.86%    29.93%    (3.89)%    26.77%    10.08%      .21%      22.04%
RATIOS/SUPPLEMENTAL
 DATA:
Expenses to
 average net
 assets.........          .93%      .85%       .87%      .75%      .72%      .66%       .65%      .69%      .60%        .55%
Net investment
 income to
 average net
 assets.........         2.56%     2.93%      2.86%     3.00%     3.24%     3.22%      3.51%     3.70%     3.09%       3.40%
Portfolio
 turnover.......        46.08%    57.17%     54.37%    46.78%    47.60%    45.22%     56.27%    52.58%    61.37%      46.44%
Net assets, end
 of period
<CAPTION>(000's
 omitted).......     $614,400 CLASS D$510,956   $553,222  $514,069  $494,858  $422,099   $495,029  $487,179  $521,407    $547,315
                     ------------------------------
                        YEAR ENDED
                       DECEMBER 31       5/3/93*
                     -------------------    TO
                      1995O    1994O     12/31/93
                     -------- ---------- ----------
<S>                  <C>      <C>        <C>
PER SHARE OPER-
 ATING
 PERFORMANCE:
Net asset value,
 beginning of
 period.........      $12.07    $13.46    $13.29
                     -------- ---------- ----------
Net investment
 income.........         .24       .22       .18
Net realized and
 unrealized
 investment gain
 (loss).........        3.00      (.66)     1.02
                     -------- ---------- ----------
Net realized and
 unrealizaed
 gain on foreign
 currency
 tranation......         .01        --        --
Increase
 (decrease) from
 investment
 operations.....        3.25      (.44)     1.20
Dividends paid..        (.22)     (.23)     (.21)
Distributions
 from net gain
 realized.......        (.94)     (.72)     (.82)
                     -------- ---------- ----------
Net increase
 (decrease) in
 net asset
 value..........       (2.09)    (1.39)      .17
                     -------- ---------- ----------
Net asset value,
 end of period..      $14.16    $12.07    $13.46
                     ======== ========== ==========
Total return
 based on net
 asset value....       27.17%    (3.24)%    9.09%
RATIOS/SUPPLEMENTAL
 DATA:
Expenses to
 average net
 assets.........        1.72%     1.96%     2.02%+
Net investment
 income to
 average net
 assets.........        1.80%     1.68%     1.83%+
Portfolio
 turnover.......       46.08%    57.17%    54.37%++
Net assets, end
 of period
 (000's
 omitted).......     $46,564   $14,416    $5,667
</TABLE>    
- -------
   
  oPer share amounts for the years ended December 31, 1995 and 1994 are calcu-
   lated based on average shares outstanding.     
  *Commencement of offering of Class D shares.
   
 **Includes excess taxable gain distribution over realized corporate gain
   charged to paid-in capital of $.01.     
  +Annualized.
 ++For the year ended December 31, 1993.
   
The data provided above reflects historical information and therefore through
April 10, 1991 has not been adjusted to reflect the effect of the increased
management fee which was approved by shareholders on April 10, 1991; through
December 31, 1992, does not reflect the effect of the Administration, Share-
holder Services and Distribution Plan which was approved on November 23, 1992
and became effective January 1, 1993; or through December 31, 1995 does not re-
flect the effect of the increase in the management fee rate payable by the
Fund, which was approved by shareholders on December 12, 1995 and became effec-
tive on January 1, 1996.     
 
                                       3
<PAGE>
 
ALTERNATIVE DISTRIBUTION SYSTEM
   
  The Fund offers three classes of shares. Class A shares are sold to investors
who have concluded that they would prefer to pay an initial sales load and have
the benefit of lower continuing fees. Class B shares are sold to investors
choosing to pay no initial sales sold, 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 distribu-
tion 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 pur-
chase, the length of time the shares are expected to be held and other relevant
circumstances. Investors should determine whether under their particular cir-
cumstances it is more advantageous to incur an initial sales load and be sub-
ject to lower ongoing fees, as discussed below, or to have the entire initial
purchase price invested in the Fund with the investment thereafter being sub-
ject to higher ongoing fees and either a CDSL for a six-year period with auto-
matic 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 qualify for reduced sales loads, as described under "Purchase
Of Shares" below, might choose to purchase Class A shares because Class A
shares would be subject to lower ongoing fees. The amount invested in the Fund,
however, is reduced by the initial sales load deducted at the time of purchase.
   
  Investors who do not qualify for reduced initial sales loads but expect to
maintain their investment for an extended period of time might also choose to
purchase Class A shares because over time the accumulated continuing distribu-
tion fees of Class B and Class D shares may exceed the initial sales load and
lower distribution fee of Class A shares. This consideration must be weighed
against the fact the amount invested in the Fund will be reduced by the initial
sales load on Class A shares deducted at the time of purchase. Furthermore, the
higher distribution fees on Class B and Class D 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. In addition, Class B shares will be converted automatically to
Class A shares after a period of approximately eight years, and thereafter in-
vestors will be subject to lower ongoing fees. Shares purchased through rein-
vestment of dividends and distributions on Class B shares also will convert au-
tomatically 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 in-
vested 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 re-
duced 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 in-
vestment 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 a purchase of 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 qual-
ifies for a reduced sales load on the Class A shares.     
   
  Investors should understand that the purpose and function of the initial
sales loads 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.     
 
                                       4
<PAGE>
 
   
  Class B and Class D shares are subject to the same ongoing distribution fees
but Class D shares are subject to a CDSL for a shorter period of time (one
year as opposed to six years) than Class B shares. However, unlike Class D
shares, Class B shares automatically convert to Class A shares after eight
years, which are subject to lower ongoing distribution fees.     
   
  The three classes of shares represent interests in the same portfolio of in-
vestments, have the same rights and are generally identical in all respects
except that each class bears its separate distribution and, potentially, cer-
tain 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 in-
come 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 ex-
ists 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 pur-
pose, the Directors will monitor the Fund for the existence of any material
conflict among the classes and will take such action as is reasonably neces-
sary 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 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 ac-
count 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 there 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 objec-
tives.     
 
<TABLE>   
<CAPTION>
                                             ANNUAL 12B-1 FEES
                   INITIAL                   (AS A % OF AVERAGE                    OTHER
                  SALES LOAD                 DAILY NET ASSETS)                  INFORMATION
                  ----------                 ------------------                 ------------
<S>              <C>                         <C>                                <C>
CLASS A          Maximum                        Service fee                     Initial
                 initial                        of .25%.                        sales load
                 sales load                                                     waived or
                 of 4.75% of                                                    reduced for
                 the public                                                     certain
                 offering                                                       purchases.
                 price.
CLASS B          None                           Service fee                     CDSL of:
                                                of .25%                         5% in 1st
                                                Distribution                    year 4% in
                                                fee of .75%                     2nd year 3%
                                                until                           in 3rd and
                                                conversion*                     4th years
                                                                                2% in 5th
                                                                                year 1% in
                                                                                6th year 0%
                                                                                after 6th
                                                                                year.
CLASS D          None                           Service fee                     CDSL of 1%
                                                of .25%                         on
                                                Distribution                    redemptions
                                                fee of .75%.                    within one
                                                                                year of
                                                                                purchase.
</TABLE>    
- -------
   
* 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.     
 
                                       5
<PAGE>
 
INVESTMENT OBJECTIVES, 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 1930.
 
  The Fund strives to produce favorable, but not the highest, current income
and long-term growth of both income and capital value, without exposing capital
to undue risk. Income is thought of in terms of both the dollar amount of divi-
dends paid and the purchasing power of the income they provide.
   
  The Fund emphasizes careful selection of individual securities suited to its
investment objectives, broad diversification of investment risk and continuing
supervision of securities owned. Assets may be held in cash or invested in all
forms of securities. For many years, common stocks have made up the bulk of se-
curities owned. However, substantial proportions of assets have been held, and
may be held, in cash and fixed income securities. Investments may be changed
whenever considered advisable and portfolio turnover may vary with such
changes. There can be no assurance that the Fund's investment objectives will
be attained.     
 
  LENDING OF PORTFOLIO SECURITIES. The Fund may lend portfolio securities to
brokers or dealers in corporate or government securities, or banks or other in-
stitutional 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 bor-
rower pays the Fund an amount equivalent to any dividends or interest paid on
the securities and the Fund may invest the cash collateral and earn additional
income or may receive an agreed upon amount of interest income from the borrow-
er.
   
  BORROWING. The Fund may borrow money only from banks and only for temporary
or emergency purposes in an amount not to exceed 15% of the value of its total
assets. The Fund may pledge its assets only to the extent necessary to effect
permitted borrowings on a secured basis.     
   
  ILLIQUID SECURITIES. The Fund may invest up to 15% of its net assets in il-
liquid securities, including restricted securities (i.e., securities not read-
ily marketable without registration under the Securities Act of 1933 (the "1933
Act")) and other securities that are not readily marketable. The Fund may pur-
chase restricted securities that can be offered and sold to "qualified institu-
tional buyers" under Rule 144A of the 1993 Act, and the Manager, acting pursu-
ant 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 mar-
ket for restricted securities offered and sold under Rule 144A will develop.
This investment practice could have the effect of increasing the level of illi-
quidity 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 for-
eign issuers directly or through American Depositary Receipts ("ADRs"), Euro-
pean Depositary Receipts ("EDRs") or Global Depositary Receipts ("GDRs") (col-
lectively, "Depositary Receipts").     
 
  Foreign investments may be affected favorable 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 compa-
nies may not be subject to reporting standards and requirements comparable to
those applicable to U.S. companies. Foreign securities may not be as liquid as
U.S. securities. Securities of foreign companies may involve greater market
risk than securities of U.S. companies, and for-
 
                                       6
<PAGE>
 
   
eign brokerage commissions and custody fees are generally higher than those in
the United States. Investments in foreign securities may also be subject to lo-
cal economic or political risks, political instability and possible national-
ization of issuers. Depositary Receipts are instruments generally issued by do-
mestic 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 gener-
ally reflects the dollar equivalent of the home country share price. EDRs and
GDRs are typically traded in Europe and in both Europe and the United States,
respectively. 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. Al-
though regulatory requirements with respect to sponsored and unsponsored Depos-
itary Receipt programs are generally similar, the issuers of securities repre-
sented by unsponsored Depositary Receipts are not obligated to disclose mate-
rial information in the United States, and therefore, the import of such infor-
mation 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 di-
rectly, but this 10% limit does not apply to foreign securities held through
Depositary Receipts which are traded in the United States or to commercial pa-
per and certificates of deposit issued by foreign banks.     
       
       
   
  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 objectives of seek-
ing to produce favorable, but not the highest, current income and long-term
growth of both income and capital value without such a vote. A more detailed
description of the Fund's investment policies, including a list of those re-
strictions 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 outstand-
ing shares of the Fund or (2) 67% or more of the shares present at a sharehold-
ers' meeting if more than 50% of the outstanding shares are represented at the
meeting in person or by proxy.     
 
MANAGEMENT SERVICES
 
  THE MANAGER. The Board of Directors provides broad supervision over the af-
fairs 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 sixteen other investment companies
which, together with the Fund, comprise the "Seligman Group." These companies
are: Seligman Capital Fund, Inc., Seligman Cash Management Fund, Inc., Seligman
Communications and Information Fund, Inc., Seligman Frontier Fund, Inc., Selig-
man Growth Fund, Inc., Seligman Henderson Global Fund Series, Inc., Seligman
High Income Fund Series, Seligman Income Fund, Inc., Seligman New Jersey Tax-
Exempt Fund, Inc., Seligman Pennsylvania Tax-Exempt Fund Series, Seligman Port-
folios, Inc., Seligman Quality Municipal Fund, Inc., Seligman Select Municipal
Fund, Inc., Seligman Tax-Exempt Fund Series, Inc., Seligman Tax-Exempt Series
Trust and Tri-Continental Corporation. The aggregate assets of the Seligman
Group were approximately $11.9 billion at February 29, 1996. The Manager also
provides investment management or advice to institutional accounts having an
aggregate value at February 29, 1996 of approximately $3.9 billion.     
 
  Mr. William C. Morris is Chairman and President of the Manager and Chairman
of the Board and Chief
 
                                       7
<PAGE>
 
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 the Fund and certain other investment companies in the Se-
ligman Group, which performs, at cost, certain recordkeeping functions for the
Fund, maintains the records of shareholder accounts and furnishes dividend pay-
ing, redemption and related services.
   
  The Manager is entitled to receive a management fee, calculated daily and
payable monthly. The management fee, which became effective on January 1, 1996,
is equal to an annual rate of .65% of the Fund's average daily net assets on
the first $1 billion of net assets, .60% of the Fund's average daily net assets
on the next $1 billion of net assets and .55% of the Fund's average daily net
assets in excess of $2 billion. In 1995, the management fee paid by the Fund
was equal to an annual rate of .48% of the average daily net assets of the
Fund. The Fund pays all of its expenses other than those assumed by the Manag-
er. Total expenses of the Fund's Class A and Class D shares, respectively, for
the year ended December 31, 1995 amounted to .93% and 1.72%, respectively, of
the average daily net assets of each class. No Class B shares of the Fund were
outstanding during this period.     
   
   THE SUBADVISER. The Subadviser provides investment management services to
the Fund with respect to all or a portion of the Fund's foreign investments, as
designated by the Manager ("Qualifying Assets"). The Fund has a non-fundamental
policy under which it may invest up to 10% of its total assets in foreign secu-
rities that are held directly. The 10% limit does not apply to foreign securi-
ties held through Depositary Receipts which are traded in the United States or
to commercial paper and certificates of deposit issued by foreign banks. The
Subadviser serves the Fund pursuant to a Subadvisory Agreement with the Manager
(the "Subadvisory Agreement"), dated June 1, 1994. Pursuant to the Subadvisory
Agreement, the Subadviser, with respect to the Qualifying Assets, provides in-
vestment management services including investment research, advice and supervi-
sion, determines which securities will be purchased or sold, makes purchases
and sales on behalf of the Fund and determines how voting and other rights with
respect to securities held by the Fund shall be exercised, subject in each case
to the control of the Fund's Board of Directors and in accordance with the
Fund's investment objectives, policies and principles. For this service, the
Subadviser receives a fee from the Manager, payable monthly. The subadvisory
fee rate, which is applied to the average monthly net Qualifying Assets of the
Fund (i.e., the Qualifying Assets less any liabilities as designated by the
Manager), is the same as the overall rate paid to the Manager by the Fund. For
the year ended December 31, 1995, the Subadviser received from the Manager a
fee of $244,337.     
   
  The Subadviser was founded in 1991 as a joint venture between the Manager and
Henderson International, Inc., a controlled affiliate of Henderson Administra-
tion Group plc. The Subadviser, headquartered in New York, was created to pro-
vide international and global investment advice to institutional and individual
investors and investment companies in the United States. The Subadviser cur-
rently serves as subadviser to Seligman Capital Fund, Inc., Seligman Communica-
tions and Information Fund, Inc., Seligman Frontier Fund, Inc., Seligman Growth
Fund, Inc., Seligman Henderson Global Fund Series, Inc., Seligman Income Fund,
Inc., the Global Portfolio and the Global Smaller Companies Portfolio of Selig-
man Portfolios, Inc. and Tri-Continental Corporation. The address of the
Subadviser is 100 Park Avenue, New York, NY 10017.     
   
  PORTFOLIO MANAGERS. Charles C. Smith, Jr., a Managing Director of the Manag-
er, has been a Vice President and Portfolio Manager of the Fund since December
1991. He is also a Vice President and Portfolio Manager of Seligman Income
Fund, Inc. and Tri-Continental Corporation and Vice President of Seligman Port-
folios, Inc. ("SPI") and Portfolio Manager of SPI's Seligman Common Stock Port-
folio and Seligman In     
                                       8
<PAGE>
 
   
come Portfolio. Mr. Smith joined the Manager in 1985 as Vice President, Invest-
ment Officer. He was promoted to Senior Vice President, Senior Investment Offi-
cer in 1992 and Managing Director in January 1994.     
   
  Stacey G. Navin, Vice President of the Manager, has served as Co-Portfolio
Manager of the Fund since December 1991. She is also Co-Portfolio Manager of
Seligman Income Fund, Inc. Ms. Navin joined the Manager in 1986 as a research
analyst and assumed portfolio management responsibilities in 1988.     
   
  The Subadviser's Global Policy Group has overall responsibility for directing
and overseeing all aspects of foreign investment activity for the Fund and pro-
vides international investment policy, including country weightings, asset al-
locations and industry sector guidelines, as appropriate. Mr. Iain C. Clark, a
Managing Director and Chief Investment Officer of the Subadviser, is responsi-
ble for the day-to-day foreign investment activity of the Fund, to the extent
there are Qualifying Assets. Mr. Clark, who joined the Subadviser in 1992, has
been a Director of Henderson Administration Group plc since 1985.     
   
  The Manager's discussion of the Fund's performance as well as a line graph
illustrating comparative performance information between the Fund, the Standard
& Poor's 500 Composite Stock Price Index and the Lipper Growth and Income Fund
Average is included in the Fund's 1995 Annual Report to Shareholders. Copies of
the 1995 Annual Report may be obtained, without charge, by calling or writing
the Fund at the telephone numbers or address listed on the cover page of this
Prospectus.     
   
  PORTFOLIO TRANSACTIONS. The Management Agreement and Subadvisory Agreement
each recognize that in the purchase and sale of portfolio securities, the Man-
ager and the Subadviser will seek the most favorable price and execution and,
consistent with that policy, may give consideration to the research, statisti-
cal and other services furnished by brokers or dealers to the Manager and
Subadviser. 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 com-
mission rates, and research and analysis received may be useful to the Manager
and Subadviser in connection with its services to other clients as well as to
the Fund. In over-the-counter markets, orders are placed with responsible pri-
mary market makers unless a more favorable execution or price is believed to be
obtainable.     
   
  Consistent with the Rules of the National Association of Securities Dealers,
Inc., and subject to seeking the most favorable price and execution available
and such other policies as the Directors of the Fund may determine, the Manager
and Subadviser may consider sales of shares of the Fund and, if permitted by
applicable laws, may consider sales of shares of the other mutual funds in the
Seligman Group as a factor in the selection of brokers or dealers to execute
portfolio transactions for the 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.
Although it is the policy of the Fund to hold securities for investment,
changes in securities held by the Fund will be made from time to time when the
Manager and Subadviser believe such changes will strengthen the Fund's
portfolio. The portfolio turnover of the Fund is not expected to exceed 100%.
    
PURCHASE OF SHARES
   
  Seligman Financial Services, Inc. ("SFSI"), an affiliate of the Manager, acts
as general distributor of the Fund's shares. Its address is 100 Park Avenue,
New York, NY 10017.     
   
  The Fund issues three classes of shares: Class A shares are sold to investors
choosing the initial sales load alternative; Class B shares are sold to invest-
ors choosing to pay no initial sales load, a higher distribu     
 
                                       9
<PAGE>
 
   
tion 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 pur-
chase. See "Alternative Distribution System" above.     
 
  Shares of the Fund may be purchased through any authorized investment dealer.
All orders will be executed at the net asset value per share next computed af-
ter receipt of the purchase order plus, in the case of Class A shares, a sales
load which, except for shares purchased under one of the reduced sales load
plans, will vary with the size of the purchase as shown in the schedule under
"Class A Shares--Initial Sales Load" below.
   
  THE MINIMUM AMOUNT FOR INITIAL INVESTMENT IN THE FUND IS $1,000; SUBSEQUENT
INVESTMENTS MUST BE IN THE MINIMUM AMOUNT OF $100 (EXCEPT FOR INVESTMENT OF
DIVIDENDS AND CAPITAL GAIN DISTRIBUTIONS). THE FUND RESERVES THE RIGHT TO RE-
TURN INVESTMENTS THAT DO NOT MEET THESE MINIMUMS. EXCEPTIONS TO THESE MINIMUMS
ARE AVAILABLE FOR ACCOUNTS BEING ESTABLISHED CONCURRENTLY WITH THE INVEST-A-
CHECK (R) SERVICE OR THE SELIGMAN TIME HORIZON MATRIX SM.     
   
  No purchase order may be placed for Class B shares for an amount of $250,000
or more; or for Class D shares for an amount of $4,000,000 or more.     
   
  Orders received by an authorized dealer before the close of the New York
Stock Exchange ("NYSE") (normally, 4:00 p.m. Eastern time) and accepted by SFSI
before the close of business (5:00 p.m. Eastern time) on the same day will be
executed at the Fund's net asset value determined as of the close of the NYSE
on that day plus, in the case of Class A shares, the applicable sales load. Or-
ders accepted by dealers after the close of 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, the applicable sales load. The
au thorized 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 pay-
ments, dealer orders must first be placed through SFSI's order desk and as-
signed a purchase confirmation number. Funds in payment of the purchase may
then be wired to Mellon Bank, N.A., ABA #043000261, A/C Seligman Common Stock
Fund, Inc. (A, B or D), A/C #107-1011. WIRE TRANSFERS MUST INCLUDE THE PURCHASE
CONFIRMATION NUMBER AND CLIENT ACCOUNT REGISTRATION AND ACCOUNT NUMBER. Persons
other than dealers who wish to wire payment should contact Seligman Data Corp.
for specific wire instructions. Although the Fund makes no charge for this
service, the transmitting bank may impose a wire service fee.     
   
  Current shareholders may purchase additional shares at any time through any
authorized dealer or by sending a check payable to the "Seligman Group of
Funds" directly to P.O. BOX 3936, NEW YORK, NY 10008-3936. Checks for invest-
ment must be in U.S. dollars drawn on a domestic bank. The check should be ac-
companied by an investment slip (provided on 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). If a shareholder does not provide the
required information, Seligman Data Corp. will seek further clarification and
may be forced to return the check to the shareholder. Orders sent directly to
Seligman Data Corp. will be executed at the Fund's net asset value next deter-
mined after the order is accepted plus, in the case of Class A shares, the ap-
plicable sales load.     
   
  Seligman Data Corp. will charge a $10.00 service fee for checks returned to
it as uncollectable. This charge may be deducted from the shareholder's ac-
count. For the protection of the Fund and its shareholders, no redemption pro-
ceeds 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.     
 
 
                                       10
<PAGE>
 
   
  VALUATION. The net asset value of the Fund's shares is determined each day,
Monday through Friday, as of the close of trading on the NYSE (normally, 4:00
p.m. Eastern time) on each day that the NYSE is open for business. Net asset
value is calculated separately for each class. Securities 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 se-
curities and securities for which there are no recent sales transactions are
valued based on quotations provided by primary market makers in such securi-
ties. Any securities for which recent market quotations are not readily avail-
able are valued at fair value determined in accordance with procedures approved
by the Fund's Board of Directors. Short-term holdings maturing in 60 days or
less are generally valued at amortized cost if their original maturity was 60
days or less. 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 repre-
sent fair market value.     
   
  Although the legal rights of Class A, Class B and Class D shares are substan-
tially 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 fee charged to Class B and Class
D shares. In addition, net asset value per share of the three classes will be
affected to the extent any other expenses differ among classes.     
 
  CLASS A SHARES--INITIAL SALES LOAD. Class A shares are subject to an initial
sales load which varies with the size of the purchase as shown in the following
schedule, and an annual service fee of up to .25% of the average daily net as-
set value of Class A shares. See "Administration, Shareholder Services and Dis-
tribution Plan" below.
 
                      CLASS A SHARES--SALES LOAD SCHEDULE
 
<TABLE>
<CAPTION>
                                 SALES LOAD AS A
                                  PERCENTAGE OF
                               -------------------
                                                    REGULAR
                                                    DEALER
                                        NET AMOUNT DISCOUNT
                                         INVESTED  AS A % OF
           AMOUNT OF           OFFERING (NET ASSET OFFERING
           PURCHASE             PRICE     VALUE)     PRICE
  ------------------------------------- ---------- ---------
  <S>               <C>        <C>      <C>        <C>
         Less than  $   50,000   4.75%     4.99%     4.25%
  $        50,000-      99,999   4.00      4.17      3.50
          100,000-     249,999   3.50      3.63      3.00
          250,000-     499,999   2.50      2.56      2.25
          500,000-     999,999   2.00      2.04      1.75
        1,000,000-   3,999,999   1.00      1.01       .90
        4,000,000-   or more*       0         0         0
</TABLE>
 -------
 * Dealers will receive a fee of
   .15% on sales of $4,000,000 or
   more.
   
  SFSI shall pay broker/dealers, from its own resources, an additional fee in
respect of certain investments in Class A shares of the Seligman Mutual Funds
by an "eligible employee benefit plan" (as defined below under "Special Pro-
grams") which are attributable to the particular broker/dealer. The shares eli-
gible for the fee are those on which an initial front-end sales load was not
paid because either (i) the participating eligible employee benefit plan has at
least $1 million invested in the Seligman Mutual Funds or (ii) the participat-
ing employer has at least 50 eligible employees to whom such plan is made
available. The fee, which is paid monthly, is a percentage of the average daily
net asset value of eligible shares based on the length of time the shares have
been invested in an eligible Seligman Mutual Fund, as follows: for shares held
up to 1 year, .50% per annum; for shares held more than 1 year up to 2 years,
 .25% per annum; for shares held from 2 years up to 5 years, .10% per annum; and
nothing thereafter.     
 
  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 ac-
count or single trust. Purchases made by a
 
                                       11
<PAGE>
 
trustee or other fiduciary for a fiduciary account may not be aggregated with
purchases made on behalf of any other fiduciary or individual account.
   
 . 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 Mu-
tual Funds that are sold with a front-end sales load, reaches levels indicated
in the above sales load schedule.     
   
 . THE RIGHT OF ACCUMULATION allows an investor to combine the amount being in-
vested in shares of the other Seligman Mutual Funds sold with a front-end sales
load with the total net asset value of shares of those Seligman Mutual Funds
already owned that were sold with a front-end sales load and the total net as-
set value of shares of Seligman Cash Management Fund that were acquired by the
investor through an exchange of shares of another Seligman Mutual Fund on which
there was a front-end sales load to determine reduced sales loads in accordance
with the sales load schedule. An investor or a dealer purchasing shares on be-
half of an investor must indicate that the investor has existing accounts when
making investments or opening new accounts.     
   
 . A LETTER OF INTENT allows an investor to purchase Class A shares over a 13-
month period at reduced sales loads, based upon the total amount the investor
intends to purchase plus the total net asset value of shares of the Seligman
Mutual Funds already owned that were sold with a front-end sales load and the
total net asset value of shares of Seligman Cash Management Fund that were ac-
quired through an exchange of shares of another Seligman Mutual Fund on which
there was a front-end 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 concern-
ing terms of Letters of Intent, see "Terms and Conditions" on page 26.     
   
  SPECIAL PROGRAMS. The Fund may sell Class A shares at net asset value to
present and retired directors, trustees, officers, employees and their spouses
(and family members of the foregoing) of the Fund, the other investment compa-
nies 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 organi-
zation controlled by any of the foregoing. Such sales also may be made to em-
ployee benefit and thrift plans for such persons and to any investment adviso-
ry, custodial, trust or other fiduciary account managed or advised by the Man-
ager or any affiliate.     
   
  Class A shares also may be issued without a sales load in connection with the
acquisition of cash and securities owned by other investment companies and per-
sonal holding companies; to any registered unit investment trust which is the
issuer of periodic payment plan certificates, the net proceeds of which are in-
vested 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
shareholders of mutual funds with objectives and policies similar to the Fund
who purchase shares with redemption proceeds of such funds; to financial insti-
tution trust departments; to registered investment advisers exercising discre-
tionary investment authority with respect to the purchase of Fund shares; to
accounts of financial institutions or broker/dealers that charge account man-
agement 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; and to "eligible employee benefit plans" (i) which have at
least $1 million invested in the Seligman Group of Mutual Funds or (ii) of em-
ployers who have at least 50 eligible employees to whom such plan is made
available and, regardless of the number of employees, if such plan is     
 
                                       12
<PAGE>
 
   
established and maintained by any dealer that has a sales agreement with SFSI.
"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 el-
igible for net asset value purchases based on the aggregate investment made by
the plan or number of eligible employees. Participants in such plans are eligi-
ble for reduced sales loads based solely on their individual investments.     
   
  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.     
 
<TABLE>   
<CAPTION>
YEARS SINCE PURCHASE                                                        CDSL
- --------------------                                                        ----
<S>                                                                         <C>
less than 1 year...........................................................  5%
1 year or more but less than 2 years.......................................  4%
2 years or more but less than 3 years......................................  3%
3 years or more but less than 4 years......................................  3%
4 years or more but less than 5 years......................................  2%
5 years or more but less than 6 years......................................  1%
6 years or more............................................................  0%
</TABLE>    
   
  Class B shares are also subject to 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 B shares. SFSI will make a 4% payment to dealers in respect of pur-
chases of Class B shares. Approximately eight years after purchase, Class B
shares will convert automatically to Class A shares of the Fund, which are sub-
ject to an annual service fee of .25% but no distribution fee. Shares purchased
through reinvestment of dividends and distributions on Class B shares also will
convert automatically to Class A shares along with the underlying shares on
which they were earned. Conversion occurs at the end of the month which pre-
cedes the eighth anniversary of the purchase date. If Class B shares of the
Fund are exchanged for Class B shares of another Seligman Mutual Fund, the con-
version 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 exer-
cising the exchange privilege will continue to be subject to the Fund's CDSL
schedule if such schedule is higher or longer than the CDSL schedule relating
to the new Class B shares. In addition, Class B shares of the Fund acquired by
exchange will be subject to the Fund's CDSL schedule if such schedule is higher
or longer than the CDSL schedule relating to the Class B shares of the fund
from which the exchange has been made.     
   
  CLASS D SHARES. Class D shares are sold without an initial sales load but are
subject to a CDSL if the shares are redeemed within one year, an annual dis-
tribution fee of up to .75% and an annual service fee of up to .25%, of the av-
erage daily net asset value of the Class D shares. SFSI will make a 1% payment
to dealers in respect of purchases of Class D shares. Unlike Class B shares,
Class D shares do not automatically convert to Class A shares after eight
years.     
   
  CONTINGENT DEFERRED SALES LOAD. A CDSL will be imposed on any redemption of
Class B or Class D shares which were purchased during the preceding six years
(for Class B shares) or twelve months (for Class D shares); however, no CDSL
will be imposed on shares acquired through the investment of dividends or dis-
tributions from any Class B or Class D shares of mutual funds within the Selig-
man Group. The amount of any CDSL will initially be used by SFSI to defray the
expense of the payment of 4% (in the case of Class B shares) or 1% (in the case
of Class D shares) made by it to Service Organizations (as defined under "Ad-
ministration, Shareholder Services and Distribution Plan") at the time of sale.
       
  To minimize the application of a CDSL to a redemption, shares acquired pursu-
ant to the investment     
 
                                       13
<PAGE>
 
   
of dividends and distributions (which are not subject to a CDSL) will be re-
deemed first; followed by shares purchased at least six years prior to redemp-
tion (in the case of Class B shares) or one year prior to redemption (in the
case of Class D shares). Shares held for the longest period of time within the
applicable period will then be redeemed. Additionally, for those shares deter-
mined to be subject to a CDSL, the CDSL will be assessed on the current net as-
set value or original purchase price, whichever is less.     
   
  For example, assume an investor purchased 100 Class D shares in January at a
price of $10.00 per share. During the first year, 5 additional Class D shares
were acquired through investment of dividends and distributions. In January of
the following year, an additional 50 Class D shares 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:     
 
<TABLE>
<S>                                                                   <C>
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
                                                                      =========
</TABLE>
 
  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 re-
demption of shares.
 
  The CDSL will be waived or reduced in the following instances:
   
  (a) on redemptions following the death or disability of a shareholder, as de-
fined in section 72(m)(7) of the Internal Revenue Code of 1986, as amended (the
"Code"); (b) in connection with (i) distributions from retirement plans quali-
fied 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) dis-
tributions from a custodial account under section 403(b)(7) of the Code or an
individual retirement account ("IRA") due to death, disability, or attainment
of age 59 1/2, and (iii) a tax-free return of an excess contribution to an IRA;
(c) in whole or in part, in connection with shares sold to current and retired
Directors of the Fund; (d) in whole or in part, in connection with shares sold
to any state, county, or city or any instrumentality, department, authority, or
agency thereof, which is prohibited by applicable investment laws from paying a
sales load or commission in connection with the purchase of shares of any reg-
istered investment management company; (e) pursuant to an automatic cash with-
drawal service; and (f) in connection with the redemption of Class B or Class D
shares of the Fund if the Fund is combined with another mutual fund in the Se-
ligman Group, or another similar reorganization transaction.     
   
  If, with respect to a redemption of any 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 in-
centive programs which may require the sale of minimum dollar amounts of shares
of the Seligman Mutual Funds. SFSI may from time to time pay a bonus or other
incentive to dealers that sell shares of the mutual funds in the Seligman
Group. In some instances, these bonuses or incentives may be offered only to
certain
                                       14
<PAGE>
 
   
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 man-
aged by the Manager during a specified period of time. Such bonus or other in-
centive may take the form of payment for travel expenses, including lodging,
incurred in connection with trips taken by qualifying registered representa-
tives and members of their families to places within or outside the United
States. The cost to SFSI of such promotional activities and payments shall be
consistent with the Rules of the National Association of Securities Dealers,
Inc., as then in effect.     
 
TELEPHONE TRANSACTIONS
       
   
  A shareholder with telephone transaction privileges, AND THE SHAREHOLDER'S
BROKER/DEALER REPRESENTATIVE, will have the ability to effect the following
transactions via telephone: (i) redemption of Fund shares, (ii) exchange of
Fund shares for shares of the same class of another Seligman Mutual Fund, (iii)
change of a dividend and/or capital gain distribution option, and (iv) change
of address. All telephone transactions are effected through Seligman Data Corp.
at (800) 221-2450.     
   
  For investors who purchase shares by completing and submitting an Account Ap-
plication (except those accounts registered as trusts (unless the trustee and
sole beneficiary are the same person), corporations or group retirement plans):
Unless an election is made otherwise on the Account Application, a shareholder
and the shareholder's broker/dealer of record as designated on the Account Ap-
plication, will automatically receive telephone services.     
   
  For investors who purchase shares through a broker/dealer: Telephone services
for a shareholder and the shareholder's representative may be elected by com-
pleting a supplemental election application available from the broker/dealer of
record.     
   
  For accounts registered as IRAs. Telephone services will include only ex-
changes or address changes.     
   
  For accounts registered as trusts (unless the trustee and sole beneficiary
are the same person), corporations or group retirement plans: Telephone redemp-
tions are not permitted. Additionally, group retirement plans are not permitted
to change a dividend or gain distribution option.     
       
   
  All Seligman Mutual Fund accounts with the same account number (i.e., regis-
tered exactly the same) as an existing account, including any new Seligman Mu-
tual Fund in which the shareholder invests in the future, will automatically
include telephone services if the existing account has telephone services. Tel-
ephone services may also be elected at any time on a supplemental election ap-
plication.     
   
  For accounts registered jointly (such as joint tenancies, tenants in common
and community property registrations), each owner, by accepting or requesting
telephone services, authorizes each of the other owners to effect telephone
transactions on his or her behalf.     
   
  During times of drastic economic or market changes, a shareholder or the
shareholder's representative may experience difficulty in contacting Seligman
Data Corp. to request a redemption or exchange of Fund shares via telephone. In
these circumstances, the shareholder or the shareholder's representative should
consider using other redemption or exchange procedures. (See "Redemption Of
Shares" below.) Use of these other redemption or exchange procedures will re-
sult in the request being processed at a later time than if a telephone trans-
action 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
 
                                       15
<PAGE>
 
   
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 affili-
ates 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 rea-
sonably satisfied that instructions received by telephone are genuine, the re-
quested transaction will not be executed, and neither they nor any of their af-
filiates will be liable for any losses which may occur due to a delay in imple-
menting 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 transac-
tions 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 serv-
ices. Telephone services may be terminated by a shareholder at any time by
sending a written request to Seligman Data Corp. TELEPHONE SERVICES MAY NOT BE
ESTABLISHED BY A SHAREHOLDER'S BROKER/DEALER WITHOUT THE WRITTEN AUTHORIZATION
OF THE SHAREHOLDER. Written acknowledgment of termination of telephone services
will be sent to the shareholder at the address of record.     
 
REDEMPTION OF SHARES
   
  A shareholder may redeem shares held in book credit form without charge (ex-
cept a CDSL, if applicable) at any time by SENDING A WRITTEN REQUEST to Se-
ligman Data Corp., 100 Park Avenue, New York, NY, 10017. The redemption request
must be signed by all persons in whose name the shares are registered. A share-
holder may redeem shares that are not in book credit form, by surrendering cer-
tificates in proper form to the same address. Certificates should be sent by
registered mail. Share certificates must be endorsed for transfer or accompa-
nied 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 in-
struction 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 re-
deemed. The Fund cannot accept conditional redemption requests. If the redemp-
tion 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 par-
ticipants in the Securities Transfer Association Medallion Program (STAMP), the
Stock Exchanges Medallion Program (SEMP) or the New York Stock Exchange Medal-
lion 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 ac-
cepting such guarantee. A signature guarantee is also necessary in order to
change the account registration. Notarization by a notary public is not an ac-
ceptable signature guarantee. ADDITIONAL DOCUMENTATION MAY ALSO BE REQUIRED BY
SELIGMAN DATA CORP. IN THE EVENT OF A REDEMPTION BY CORPORATIONS, EXECUTORS,
ADMINISTRATORS, TRUSTEES, CUSTODIANS OR RETIREMENT PLANS. FOR FURTHER INFORMA-
TION WITH RESPECT TO REDEMPTION REQUIREMENTS, PLEASE CONTACT THE SHAREHOLDER
SERVICES DEPARTMENT OF SELIGMAN DATA CORP. FOR ASSISTANCE.     
   
  In the case of Class A shares, and in the case of Class B shares redeemed af-
ter 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 re-
quest in good order. If Class B shares are redeemed within six years of pur-
chase, a shareholder will receive the net asset value per share next determined
after receipt of the request in good order less the applicable CDSL, as de-
scribed under "Purchase of Shares--Class B Shares" above. If     
 
                                       16
<PAGE>
 
   
Class D shares are redeemed within one year of purchase, a shareholder will re-
ceive the net asset value per share next determined after receipt of the re-
quest 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 repur-
chase orders received from an authorized dealer before the close of the NYSE
and received by SFSI, the repurchase agent, before the close of business on the
same day will be executed at the net asset value per share determined as of the
close of the NYSE on that day, less any applicable CDSL. Repurchase orders re-
ceived from authorized dealers after the close of the NYSE or not received by
SFSI prior to the close of business will be executed at the net asset value de-
termined as of the close of the NYSE on the next trading day, less any applica-
ble CDSL. Shares held in a "street name" account with a broker/dealer may be
sold to the Fund only through a broker/dealer.     
       
   
  TELEPHONE REDEMPTIONS. Telephone redemptions of uncertificated shares may be
made once per day, in an amount of up to $50,000 per account. Telephone redemp-
tion requests must be received by Seligman Data Corp. at (800) 221-2450 between
8:30 a.m. and 4:00 p.m. Eastern time, on any business day and will be processed
as of the close of business on that day. Redemption requests by telephone will
not be accepted within 30 days following an address change. Keogh Plans, IRAs
or other retirement plans 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 share holder 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 will be
sent to the shareholder's address of record within seven calendar days after
acceptance of the redemption order and will be made payable to all of the reg-
istered owners on the account. With respect to shares repurchased by the Fund,
a check for the proceeds will be sent to the investment dealer within seven
calendar days after acceptance of the repurchase order and will be made payable
to the investment dealer. The Fund will not permit redemptions of shares pur-
chased by check (unless certified) until Seligman Data Corp. receives notice
that the check has cleared, which may be up to 15 days from the credit of such
shares to the shareholder's account. 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 in-
vestment 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 the in-
vestment in the Fund is less than the specified minimum and that they have
sixty days to make an additional investment.     
   
  REINSTATEMENT PRIVILEGE. If a shareholder redeems Class A shares and then de-
cides 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 the
redemption, use all or any part of the proceeds of the redemption to reinstate,
free of sales load, all or any part of the investment in shares of the Fund or
in shares of any of the other Seligman Mutual Funds. If a shareholder redeems
Class B or Class D shares and the redemption was subject to a CDSL the share-
holder may reinstate the investment in shares of the same class of the Fund or
of any of the other Seligman Mutual Funds within     
 
                                       17
<PAGE>
 
120 calendar days of the date of redemption and receive a credit for the CDSL
paid. Such investment will be reinstated at the net asset value per share es-
tablished as of the close of the NYSE on the day the request is received.
Seligman Data Corp. must be informed that the purchase represents a reinstated
investment. REINSTATED SHARES MUST BE REGISTERED EXACTLY AND BE OF THE SAME
CLASS AS THE SHARES PREVIOUSLY REDEEMED.
 
  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) com-
pensation to securities dealers and other organizations ("Service Organiza-
tions") for providing distribution assistance with respect to assets invested
in the Fund, (ii) compensation to Service Organizations for providing adminis-
tration, accounting and other shareholder services with respect to Fund share-
holders, and (iii) otherwise promoting the sale of shares of the Fund, includ-
ing 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 payments to SFSI from its own resources,
which may include the management fee that the Manager receives from the Fund.
    
  Under the Plan, the Fund reimburses SFSI for its expenses with respect to
Class A shares at an annual rate of up to .25% of the average daily net asset
value of Class A shares. It is expected that the proceeds from the fee in re-
spect of Class A shares will be used primarily to compensate Service Organiza-
tions 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, 1995 in respect of the Fund's Class A shares pursuant to the Plan was equal
to .24% 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 av-
erage daily net asset value of the Class B and Class D shares. Proceeds from
the Class B and 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 services and/or the
maintenance of shareholder accounts) and will initially be used by SFSI to de-
fray 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 pur-
chase of Class B and Class D shares may exceed the amounts received by it from
    
                                       18
<PAGE>
 
   
Plan payments retained. Expenses of administration, shareholder services and
distribution of Class B and Class D shares in one fiscal year of the Fund may
be paid from Class B and Class D Plan fees, respectively, received from the
Fund in any other fiscal year.     
   
  The Plan as it relates to Class B shares was approved by the Directors on
March 21, 1996. 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, 1995 by the Fund's 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 Fund's Directors annually.     
   
  Seligman Services, Inc. ("SSI"), an affiliate of the Manager, is a limited
purpose broker/dealer. SSI acts as a broker/dealer of record for most share-
holder accounts that do not have a designated broker/dealer of record including
all such shareholder accounts established after April 1, 1995 and receives com-
pensation for providing personal service and account maintenance to such ac-
counts 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 mu-
tual funds in the Seligman Group. Exchanges may be made by mail, or by tele-
phone, 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 Class B or Class D shares that are subject to a CDSL are exchanged for
Class B or Class D shares, respectively, of another fund, for purposes of as-
sessing the CDSL payable upon disposition of the exchanged Class B or Class D
shares, the applicable holding period shall be reduced by the holding period of
the original Class B or Class D shares.     
   
  Class B shareholders of the Fund exercising the exchange privilege will con-
tinue to be subject to the Fund's CDSL schedule if such schedule is higher or
longer than the CDSL schedule 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:     
   
  . SELIGMAN CAPITAL FUND, INC. seeks aggressive capital appreciation. Current
income is not an objective.     
   
  . SELIGMAN CASH MANAGEMENT FUND, INC. invests in high quality money market
instruments. Shares are sold at net asset value.     
   
  . SELIGMAN COMMUNICATIONS AND INFORMATION FUND, INC. invests in shares of
companies in the communications, information and related industries to produce
capital gain. Income is not an objective.     
   
  . SELIGMAN FRONTIER FUND, INC. seeks to produce growth in capital value; in-
come may be considered but will only be incidental to the Fund's investment ob-
jective.     
   
  . SELIGMAN GROWTH FUND, INC. seeks longer-term growth in capital value and an
increase in future income.     
   
  . SELIGMAN HENDERSON GLOBAL FUND SERIES, INC. consists of the Seligman Hen-
derson International Fund, the Seligman Henderson Global Growth Opportunities
Fund, the Seligman Henderson Global Smaller Companies Fund and the Seligman
Henderson Global Technology Fund, which seek long-term capital appreciation
primarily by investing in companies either globally or internationally.     
   
  . SELIGMAN HIGH INCOME FUND SERIES seeks high current income by investing in
debt securities. The Fund consists of the U.S. Government Securities Series
(which does not currently offer Class B Shares) and the High-Yield Bond Series.
    
                                       19
<PAGE>
 
   
  . SELIGMAN INCOME FUND, INC. seeks high current income and the possibility of
improvement of future income and capital value.     
   
  . SELIGMAN NEW JERSEY TAX-EXEMPT FUND, INC. invests in investment grade New
Jersey tax-exempt securities. (Does not currently offer Class B shares.)     
   
  . SELIGMAN PENNSYLVANIA TAX-EXEMPT FUND SERIES invests in investment grade
Pennsylvania tax-exempt securities. (Does not currently offer Class B shares.)
    
   
  . SELIGMAN TAX-EXEMPT FUND SERIES, INC. consists of several State Series and
a National Series. The National Tax-Exempt Series seeks to provide maximum in-
come exempt from Federal income taxes; individual state series, each seeking to
maximize income exempt from Federal income taxes and from personal income taxes
in designated states, are available for Colorado, Georgia, Louisiana, Maryland,
Massachusetts, Michigan, Minnesota, Missouri, New York, Ohio, Oregon and South
Carolina. (Does not currently offer Class B shares.)     
   
  . SELIGMAN TAX-EXEMPT SERIES TRUST includes the California Tax-Exempt Quality
Series, the California Tax-Exempt High-Yield Series, the Florida Tax-Exempt Se-
ries and the North Carolina Tax-Exempt Series, each of which invests in tax-ex-
empt securities of its designated state. (Does not currently offer Class B
shares.)     
   
  All permitted exchanges will be based on the net asset values of the respec-
tive funds determined at the close of the NYSE on that day. Telephone requests
for exchanges received between 8:30 a.m. and 4:00 p.m. Eastern time, on any
business day, by Seligman Data Corp. at (800) 221-2450, will be processed as of
the close of business on that day. The registration of an account into which an
exchange is made must be identical to the registration of the account from
which shares are exchanged. When establishing a new account by an exchange of
shares, the shares being exchanged must have a value of at least the minimum
initial investment required by the mutual fund into which the exchange is being
made. The method of receiving distributions, unless otherwise indicated, will
be carried over to the new fund account, as will telephone services. Account
services, such as Invest-A-Check (R) Service, Directed Dividends and Automatic
Cash Withdrawal Service will not be carried over to the new fund account unless
specifically requested and permitted by the new fund. Exchange orders may be
placed to effect an exchange of a specific number of shares, an exchange of
shares equal to a specific dollar amount or an exchange of all shares held.
Shares for which certificates have been issued may not be exchanged via tele-
phone and may be exchanged only upon receipt of a written exchange request to-
gether with certificates representing shares to be exchanged in proper form.
       
   The Exchange Privilege via mail is generally applicable to investments in
group retirement plans, although some restrictions may apply. The terms of the
exchange offer described herein may be modified at any time; and not all of the
mutual funds in the Seligman Group are available to residents of all states.
Before making any exchange, a shareholder should contact an authorized invest-
ment dealer or Seligman Data Corp. to obtain prospectuses of any of the Selig-
man 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 the Seligman Mutual
Funds from any loss or liability incurred as a result of the acceptance of tel-
ephone 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 a telephone exchange request. Any rejected telephone exchange order may
be processed by mail. For more information about tel     
 
                                       20
<PAGE>
 
   
ephone 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 Transac-
tions" 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 ex-
change or purchase order from any shareholder account if the shareholder or the
shareholder's broker/dealer has been advised that previous patterns of pur-
chases and redemptions or exchanges have been considered excessive. Accounts
under common ownership or control, including those with the same taxpayer ID
number and those administered so as to redeem or purchase shares based upon
certain predetermined market indicators, will be considered one account for
this purpose. Additionally, the Fund reserves the right to refuse any order for
the purchase of shares.
 
DIVIDENDS AND DISTRIBUTIONS
 
  The Fund's net investment income is paid to shareholders in dividends quar-
terly, usually in March, June, September and December. Payments vary in amount
depending on income received from portfolio securities and the costs of opera-
tions. 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. If the payment option you prefer is
not listed, contact Seligman Data Corp. at (800) 221-2450 to request informa-
tion about other available options. In the case of prototype retirement plans,
dividends and gain distributions are reinvested in additional shares. Unless
another election is made, dividends and capital gain distributions will be
credited to shareholder accounts in additional shares. 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 be-
low. If the shareholder has telephone services, changes may also be telephoned
to Seligman Data Corp. between 8:30 a.m. and 6:00 p.m. Eastern time, by either
the shareholder or the broker/dealer of record on the account. For information
about telephone services, see "Telephone Transactions." These elections must be
received by Seligman Data Corp. before the record date for the dividend or dis-
tribution in order to be effective for such dividend or distribution.     
   
  The per share dividends from net investment income on Class B and Class D
shares will be lower than the per share dividends on Class A shares as a result
of the higher distribution fees applicable with respect to Class B and Class D
shares. Per share dividends of the three classes may also differ as a result of
differing class expenses. Distributions of net capital gains, if any, will be
paid in the same amount for Class A, Class B and Class D shares. See "Purchase
Of Shares--Valuation."     
 
  Shareholders exchanging shares of a mutual fund for shares of another mutual
fund in the Seligman Group will continue to receive dividends and gains as
 
                                       21
<PAGE>
 
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.
 
FEDERAL INCOME TAXES
   
  The Fund intends to continue to qualify as a regulated investment company un-
der the Code. For each year so qualified, the Fund will not be subject to Fed-
eral income taxes on its net investment income and capital gains, if any, real-
ized during any taxable year, which it distributes to its shareholders, pro-
vided that at least 90% of its net investment income and net short-term capital
gains are distributed to shareholders each year.     
 
  Dividends from net investment income and distributions from net short-term
capital gains are taxable as ordinary income to the shareholders, whether re-
ceived in cash or reinvested in additional shares, and, to the extent desig-
nated 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 compa-
ny, 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 eli-
gible for the dividends received deduction allowed to corporate shareholders.
 
  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. 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 pe-
riod 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 rein-
vestment) 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 share-
holder's tax basis in the shares acquired pursuant to the Exchange or Rein-
statement 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 share-
holders in the calendar year in which it was earned. Furthermore, dividends de-
clared 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 De-
cember. Under this rule, therefore, shareholders may be taxed in one year on
dividends or distributions actually received in January of the following year.
 
  Shareholders are urged to consult their tax advisers concerning the effect of
Federal income taxes in their individual circumstances.
 
                                       22
<PAGE>
 
   
  UNLESS A SHAREHOLDER INCLUDES A CERTIFIED TAXPAYER IDENTIFICATION NUMBER (SO-
CIAL 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 INTER-
NAL 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
WHICH MAY BE DEDUCTED FROM THE SHAREHOLDER'S ACCOUNT AND OFFSET AGAINST ANY UN-
DISTRIBUTED DIVIDENDS AND CAPITAL GAIN DISTRIBUTIONS. THE FUND ALSO RESERVES
THE RIGHT TO CLOSE ANY ACCOUNT WHICH DOES NOT HAVE A CERTIFIED TAXPAYER IDENTI-
FICATION NUMBER.     
 
SHAREHOLDER INFORMATION
   
  Shareholders will be sent reports quarterly regarding the Fund. General in-
formation about the Fund may be requested by writing the Corporate Communica-
tions/ Investor Relations Department, J. & W. Seligman & Co. Incorporated, 100
Park Avenue, New York, NY 10017 or by telephoning the Corporate
Communications/Investor Relations Department toll-free at (800) 221-7844 from
all continental United States, except New York or (212) 850-1864 in New York
State and the Greater New York City area. Information about shareholder ac-
counts may be requested by writing Shareholders Services, Seligman Data Corp.
at the same address or by toll-free telephone by dialing (800) 221-2450 from
all continental United States. Seligman Data Corp. may be telephoned Monday
through Friday (except holidays), between the hours of 8:30 a.m. and 6:00 p.m.
Eastern time, and calls will be answered by a service representative.     
   
  24 HOUR TELEPHONE ACCESS IS AVAILABLE BY DIALING (800) 622-4597 ON A
TOUCHTONE PHONE, WHICH PROVIDES INSTANT ACCESS TO PRICE, YIELD, ACCOUNT BAL-
ANCE, MOST RECENT TRANSACTION AND OTHER INFORMATION. IN ADDITION, ACCOUNT
STATEMENTS, FORM 1099-DIVS AND CHECKBOOKS CAN BE ORDERED. TO INSURE PROMPT DE-
LIVERY OF DISTRIBUTION CHECKS, ACCOUNT STATEMENTS AND OTHER INFORMATION, SELIG-
MAN 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
ELECTED TELEPHONE SERVICES. FOR MORE INFORMATION ABOUT TELEPHONE SERVICES, SEE
"TELEPHONE TRANSACTIONS" ABOVE.     
 
  ACCOUNT SERVICES. Shareholders are sent confirmation of financial transac-
tions in their Account.
 
  Other investor services are available. These include:
   
 . INVEST-A-CHECK(R) SERVICE enables a shareholder to authorize additional pur-
chases of shares automatically by electronic funds transfer from the sharehold-
er's savings or checking account, if the bank that maintains the account is a
member of the Automated Clearing House ("ACH"), or by preauthorized checks to
be drawn on the shareholder's checking account at regular monthly intervals in
fixed amounts of $100 or more per fund, or regular quarterly intervals in fixed
amounts of $250 or more per fund, to purchase shares. Accounts may be estab-
lished concurrently with the Invest-A-Check(R) Service only if accompanied by a
$100 minimum in conjunction with the monthly investment option, or a $250 mini-
mum in conjunction with the quarterly investment option. (See "Terms and Condi-
tions" on page 26)     
   
 . AUTOMATIC DOLLAR-COST-AVERAGING SERVICE permits a shareholder of Seligman
Cash Management Fund to exchange a specified amount, at regular monthly inter-
vals in fixed amounts of $100 or more per fund, or regular quarterly intervals
in fixed amounts of $250 or more per fund, from shares of any class of the Cash
Management Fund into shares of the same class of any other Seligman Mutual Fund
registered in the same name. The shareholder's Cash Management     
 
                                       23
<PAGE>
 
   
Fund account must have a value of at least $5,000 at the initiation of the
service. Exchanges will be made at the public offering price.     
   
 . DIVIDENDS FROM OTHER INVESTMENTS permits a shareholder to order dividends
payable on shares of other companies to be paid to and invested in additional
shares of the Fund. (Dividend checks must meet or exceed the required minimum
purchase amount and include the shareholder's name, account number, the name of
the Fund and the class of shares in which the investment is to be made.)     
 
 . AUTOMATIC CD TRANSFER SERVICE permits a shareholder to instruct a bank to in-
vest 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 documen-
tation. 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 ma-
turity.
   
 . AUTOMATIC CASH WITHDRAWAL SERVICE permits payments at regular intervals to be
made to a shareholder who owns or purchases Class A shares worth $5,000 or more
held as book credits. Holders of Class B shares may elect to use this service
immediately, although certain withdrawals may be subject to a CDSL. Please con-
tact Seligman Data Corp. at (800) 221-2450 for more information. Holders of
Class D shares may elect to use this service with respect to shares that have
been held for at least one year. (See "Terms and Conditions" on page 26.)     
   
 . DIRECTED DIVIDENDS allows a shareholder to pay dividends to another person or
to direct the payment of such dividends to another Seligman Mutual Fund for
purchase at net asset value. Dividends on Class A, Class B and Class D shares
may only be directed to shares of the same class of another Seligman Mutual
Fund.     
 
 . OVERNIGHT DELIVERY to service shareholder requests is available for a $15.00
fee which may be deducted from a shareholder's account, if requested.
   
 . COPIES OF ACCOUNT STATEMENTS will be sent to each shareholder free of charge
for the current year and most recent prior year. Copies of year-end statements
for prior years back to 1970 are available for a fee of $10.00 per year, per
account, with a maximum charge of $150 per account. Statement requests should
be forwarded, along with a check, to Seligman Data Corp.     
 
  TAX-DEFERRED RETIREMENT PLANS. Shares of the Fund may be purchased for all
types of tax-deferred retirement plans. SFSI makes available plans, plan forms
and custody agreements for:
 
  --Individual Retirement Accounts (IRAs);
 
  --Simplified Employee Pension Plans (SEPs);
 
  --Section 401(k) Plans for corporations and their employees;
 
  --Section 403(b)(7) Plans for employees of public school systems and certain
non-profit organizations who wish to make deferred compensation arrangements;
and
 
  --Pension and Profit Sharing Plans for sole proprietorships, corporations and
partnerships.
   
  These types of plans may be established only upon receipt of a written appli-
cation form. The Fund may register an IRA investment for which an account ap-
plication has not been received as an ordinary taxable account.     
   
  For more information, write Retirement Plan Services, Seligman Data Corp.,
100 Park Avenue, New York, NY 10017 or telephone toll-free (800) 445-1777 from
all continental United States. You also may receive information through an au-
thorized 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 D shares. THESE FIGURES ARE BASED ON HISTORICAL EARNINGS AND ARE NOT IN-
TENDED TO INDICATE FUTURE PERFORMANCE. The "total return" shows     
 
                                       24
<PAGE>
 
   
what an investment in shares of Class A, Class B and Class D of the Fund would
have earned over a specified period of time (for example, one, five and ten-
year periods or since inception) assuming the payment of the maximum sales
load, if any (or CDSL upon redemption, if applicable), when the investment was
made and that all distributions and dividends paid by the Fund were reinvested
on the reinvestment dates during the period. The "average annual total return"
is the annual rate required for the initial payment to grow to the amount which
would be received at the end of the specified period (one, five and ten-year
periods or since inception); i.e., the average annual compound rate of return.
The total return and average annual total return of Class A shares quoted from
time to time through December 31, 1992 have not been adjusted to reflect the
deduction of the administration, shareholder services and distribution fee and
through April 10, 1991 also have not been adjusted to reflect the increase in
the management fee approved by shareholders on April 10, 1991, which fees if
reflected would reduce the performance quoted. The total return and average an-
nual total return quoted from time to time for Class A and Class D shares for
periods prior to January 1, 1996 do not reflect the increase in the management
fee payable by the Fund effective on such date, which if reflected would reduce
the performance quoted. Total return and average annual total return may also
be presented without the effect of the initial sales load or CDSL, as applica-
ble.     
   
  From time to time, reference may be made in advertising or promotional mate-
rial to performance information, including mutual fund rankings, prepared by
Lipper Analytical Service, Inc. ("Lipper"), an independent reporting service
which monitors the performance of mutual funds. In calculating the total return
of the Fund's Class A, Class B and Class D shares, the Lipper analysis assumes
investment of all dividends and distributions paid but does not take into ac-
count applicable sales loads. The Fund may also refer in advertisements or in
other promotional material to ar ticles, comments, listings and columns in the
financial press pertaining to the Fund's performance. Examples of such finan-
cial and other press publications include Barron's, Business Week,
CDA/Weisenberger Mutual Funds Investment Report, Christian Science Monitor, Fi-
nancial Planning, Financial Times, Financial World, Forbes, Fortune, Individual
Investor, Investment Advisor, Investors Business Daily, Kiplinger's, Los Ange-
les 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 incorpo-
rated under the laws of the State of Maryland in 1930. The Fund is authorized
to issue 500,000,000 shares of common stock, each with a par value of $0.50,
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 com-
mon stock. In accordance with the Articles of Incorporation, the Board of Di-
rectors 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.     
 
                                       25
<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 Fund shares is dishonored for any reason,
Seligman Data Corp. will cancel the purchase and may redeem additional shares,
if any, held in a 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 dis-
tributions from gain realized on investments in shares or in cash according to
the option elected. Dividend and gain options may be changed by notifying Se-
ligman 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 effec-
tive for that dividend or distribution. Stock certificates will not be issued,
unless requested. Replacement stock certificates will be subject to a surety
fee.     
 
                           INVEST-A-CHECK(R) SERVICE
   
  The Invest-A-Check(R) Service is available to all shareholders. The applica-
tion is subject to acceptance by the shareholder's bank and Seligman Data
Corp. The electronic funds transfer ("ACH debit") or preauthorized check in
the amount specified will be drawn automatically on the shareholder's bank on
the fifth day (unless otherwise specified) of each month (or on the prior
business day if such day of the month falls on a weekend or holiday) in which
an investment is scheduled and invested at the public offering price at the
close of business on the same date. After the initial investment, the value of
shares held in a shareholder's account must equal not less than two regularly
scheduled investments. 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 re-
quired minimum, the Invest-A-Check(R) Service may be suspended. In the event
that a check or ACH debit is returned uncollectable, Seligman Data Corp. will
cancel the purchase, redeem shares held in the shareholder's account for an
amount sufficient to reimburse the Fund for any loss it may have incurred as a
result, and charge a $10.00 return check fee. This fee may be deducted to 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 share-
holder exchanges all of the shares from one mutual fund in the Seligman Group
to another, the Invest-A-Check(R) Service will be terminated in the Seligman
Mutual Fund that was closed as a result of the exchange of all shares and the
shareholder must re-apply for the Invest-A-Check(R) Service in the Seligman
Mutual Fund into which the exchange was made. In the event of a partial ex-
change, 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. Ac-
counts established in connection with the Invest-A-Check(R) Service must be
accompanied by a minimum initial investment of at least $100 in connection
with the monthly investment option or $250 in connection with the quarterly
investment option. If a shareholder uses the Invest-A-Check(R) Service to make
an IRA investment, the purchase will be credited as a current year contribu-
tion. If a shareholder uses the Invest-A-Check(R) Service to make an invest-
ment in a pension or profit sharing plan, the purchase will be credited as a
current year employer contribution.     
 
                       AUTOMATIC CASH WITHDRAWAL SERVICE
   
  The Automatic Cash Withdrawal Service is available to Class A shareholders,
to Class B shareholders and to Class D shareholders with respect to Class D
shares held for one year or more. A sufficient number of full and fractional
shares will be redeemed to provide the amount required for a scheduled pay-
ment. Redemptions will be made at the asset value at the close of business on
the specific day designated by the shareholder of each month (or on the prior
business day if the day specified falls on a weekend or holiday), less, in the
case of Class B shares, any applicable CDSL. A shareholder may change the
amount of scheduled payments or may suspend payments by written notice to Se-
ligman Data Corp. at least ten days prior to the effective date of such a
change or suspension. Service may be terminated by the shareholder or Seligman
Data Corp. at any time by written notice. It will be terminated upon proper
notification of the death or legal incapacity of the shareholder. This Service
is considered terminated in the event a withdrawal of shares, other than to
make scheduled withdrawal payments, reduces the value of shares remaining on
deposit to less than $5,000. Continued payments in excess of dividend income
invested will reduce and ultimately exhaust capital. Withdrawals, concurrent
with purchases of shares of this or any other investment company, will be dis-
advantageous because of the payment of duplicative sales loads, if applicable.
For this reason, additional purchases of Fund shares are discouraged when the
Withdrawal Service is in effect.     
 
                     LETTER OF INTENT--CLASS A SHARES ONLY
   
  Seligman Financial Services, Inc. will hold in escrow shares equal to 5% of
the minimum purchase amount specified. Dividends and distributions on the
escrowed shares will be paid to the shareholder or credited to their account.
Upon completion of the specified minimum purchase within the thirteen-month
period, all shares held in escrow will be deposited to the shareholder's ac-
count or delivered to the shareholder. A shareholder may include toward com-
pletion of a Letter of Intent the total asset value of shares of the Seligman
Mutual Funds on which a front-end 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 re-
quested 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 al-
ready made under the original Agreement, will be refunded to the Fund and that
the required additional escrowed shares will be purchased by the shareholder.
    
   
  Shares of Seligman Cash Management Fund, Inc. which have been acquired by an
exchange of shares of another Seligman Mutual Fund on which there is a front-
end sales load may be taken into account in completing a Letter of Intent, or
for Right of Accumulation. However, shares of the Seligman Cash Management
Fund which have been purchased directly may not be used for purposes of deter-
mining reduced sales loads on additional purchases of the other mutual funds
in the Seligman Group.     
                                                                         
                                                                      4/96     
 
                                      26
<PAGE>
 
- ----------------------------------------------------
- ----------------------------------------------------
                                                    
SELIGMAN COMMON STOCK FUND, INC.                    
                                                    
- ----------------------------------------------------
                                                    
100 Park Avenue                                     
New York, New York 10017                            
                                                    
INVESTMENT MANAGER                                  
J. & W. Seligman & Co.Incorporated                                    
100 Park Avenue                                     
New York, New York 10017                            
                                                    
GENERAL DISTRIBUTOR                                 
Seligman Financial Services, Inc.                   
100 Park Avenue                                     
New York, New York 10017                            
                                                    
SHAREHOLDER SERVICE AGENT                           
Seligman Data Corp.                                 
100 Park Avenue                                     
New York, New York 10017                            
                                                    
PORTFOLIO SECURITIES CUSTODIAN                      
Investors Fiduciary Trust Company                   
127 West 10th Street                                
Kansas City, Missouri 64105                         
                                                    
GENERAL COUNSEL                                     
Sullivan & Cromwell                                 
125 Broad Street                                    
New York, New York 10004                            
                                                    
EQCS1 4/96
- ----------------------------------------------------
- ----------------------------------------------------
PROSPECTUS

                                                    
SELIGMAN 
COMMON STOCK 
FUND, INC.                    
                                                    
                                                    
April 22, 1996                                                    

                                                    
[LOGO OF J & W SELIGMAN APPEARS HERE] 
- ----------------------------------------------------
A GROWTH AND INCOME FUND 
    IN ITS 65TH YEAR           

<PAGE>
 
                      STATEMENT OF ADDITIONAL INFORMATION
                                     
                                 April 22, 1996      
                        SELIGMAN COMMON STOCK FUND, INC.

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

    
          This Statement of Additional Information expands upon and supplements
the information contained in the current Prospectus of Seligman Common Stock
Fund, Inc., (the "Fund") dated April 22, 1996.  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 B shares
may be purchased at net asset value and are subject to a contingent deferred
sales load ("CDSL"), if applicable, in the following amount (as a percentage of
the current net asset value of the original purchase price, whichever is less,
if redemption occurs within the indicated number of years of purchase of such
shares: 5% (less than one 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 six years) and
0% (6 or more years).  Class B shares automatically convert to Class A shares
after approximately eight years resulting in lower ongoing fees.  Shares
purchased through reinvestment of dividends and distributions on Class B shares
also will convert automatically to Class A shares along with the underlying
shares on which they were earned.  Class D shares may be purchased at net asset
value and are subject to a CDSL of 1% (of the current net asset value or the
original purchase price, whichever is less) if redeemed within one year of
purchase.      
    
          Each 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 a
higher distribution fee that generally will cause the Class B and Class D shares
to have a higher expense ratio and pay lower dividends than Class A shares.
Each Class has exclusive voting rights with respect to its distribution plan.
Although holders of Class A, Class B and Class D shares have identical legal
rights, the different expenses borne by each Class will result in different net
asset values and dividends.  The three classes also have different exchange
privileges.      

                               TABLE OF CONTENTS
<TABLE>    
<CAPTION>
                                                                       Page
<S>                                                                    <C>
Investment Objectives, Policies and Risks............................     2
Investment Limitations...............................................     4
Directors And Officers...............................................     5
Management And Expenses..............................................     9
Administration, Shareholder Services And
   Distribution Plan.................................................    11
Portfolio Transactions...............................................    12

<CAPTION>
                                                                       Page
<S>                                                                    <C>
Purchase And Redemption Of Fund Shares...............................    12
Distribution Services................................................    15
Valuation............................................................    15
Performance..........................................................    16
General Information..................................................    17
Financial Statements.................................................    17
Appendix.............................................................    18
</TABLE>     

EQFR1A

                                      -1-
<PAGE>
 
                   INVESTMENT OBJECTIVES, POLICIES AND RISKS
    
  The Fund seeks to produce favorable, but not the highest, current income and
long-term growth of both income and capital value without exposing capital to
undue risk.  The following information regarding the Fund's investment policies
supplements the information contained in the Prospectus.     

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.

Foreign Currency Transactions.  A forward foreign currency exchange contract is
an agreement to purchase or sell a specific currency at a future date and at a
price set at the time the contract is entered into.  The Fund will generally
enter into forward foreign currency exchange contracts to fix the U.S. dollar
value of a security it has agreed to buy or sell for the period between the date
the trade was entered into and the date the security is delivered and paid for,
or, to hedge the U.S. dollar value of securities it owns.

  The Fund may enter into a forward contract to sell or buy the amount of a
foreign currency it believes may experience a substantial movement against the
U.S. dollar.  In this case the contract would approximate the value of some or
all of the Fund's portfolio securities denominated in such foreign currency.
Under normal circumstances, the portfolio manager will limit forward currency
contracts to not greater than 75% of the Fund's portfolio position in any one
country as of the date the contract is entered into.  This limitation will be
measured at the point the hedging transaction is entered into by the Fund.
Under extraordinary circumstances, the Subadviser may enter into forward
currency contracts in excess of 75% of the Fund's portfolio position in any one
country as of the date the contract is entered into.  The precise matching of
the forward contract amounts and the value of securities involved will not
generally be possible since the future value of such securities in foreign
currencies will change as a consequence of market involvement in the value of
those securities between the date the forward contract is entered into and the
date it matures.  The projection of short-term currency market movement is
extremely difficult, and the successful execution of a short-term hedging
strategy is highly uncertain.  Under certain circumstances, the Fund may commit
up to the entire value of its assets which are denominated in foreign currencies
to the consummation of these contracts.  The Subadviser will consider the effect
a substantial commitment of its assets to forward contracts would have on the
investment program of the Fund and its ability to purchase additional
securities.

  Except as set forth above and immediately below, the Fund will also not enter
into such forward contracts or maintain a net exposure to such contracts where
the consummation of the contracts would oblige the Fund to deliver an amount of
foreign currency in excess of the value of the Fund's portfolio securities or
other assets denominated in that currency.  The Fund, in order to avoid excess
transactions and transaction costs, may nonetheless maintain a net exposure to
forward contracts in excess of the value of the Fund's portfolio securities or
other assets denominated in that currency provided the excess amount is
"covered" by cash or liquid, high-grade debt securities, denominated in any
currency, at least equal at all times to the amount of such excess.  Under
normal circumstances, consideration of the prospect for currency parties will be
incorporated into the longer term investment decisions made with regard to
overall diversification strategies.  However, the Subadviser believes that it is
important to have the flexibility to enter into such forward contracts when it
determines that the best interests of the Fund will be served.

                                      -2-
<PAGE>
 
  At the maturity of a forward contract, the Fund may either sell the portfolio
security and make delivery of the foreign currency, or it may retain the
security and terminate its contractual obligation to deliver the foreign
currency by purchasing an "offsetting" contract obligating it to purchase, on
the same maturity date, the same amount of the foreign currency.

  As indicated above, it is impossible to forecast with absolute precision the
market value of portfolio securities at the expiration of the forward contract.
Accordingly, it may be necessary for the Fund to purchase additional foreign
currency on the spot market (and bear the expense of such purchase) if the
market value of the security is less than the amount of foreign currency the
Fund is obligated to deliver and if a decision is made to sell the security and
make delivery of the foreign currency.  Conversely, it may be necessary to sell
on the spot market some of the foreign currency received upon the sale of the
portfolio security if its market value exceeds the amount of foreign currency
the Fund is obligated to deliver.  However, the Fund may use liquid, high-grade
debt securities, denominated in any currency, to cover the amount by which the
value of a forward contract exceeds the value of the securities to which it
relates.

  If the Fund retains the portfolio security and engages in offsetting
transactions, the Fund will incur a gain or a loss (as described below) to the
extent that there has been movement in forward contract prices.  If the Fund
engages in an offsetting transaction, it may subsequently enter into a new
forward contract to sell the foreign currency.  Should forward prices decline
during the period between the Fund's entering into a forward contract for the
sale of a foreign currency and the date it enters into an offsetting contract
for the purchase of the foreign currency, the Fund will realize a gain to the
extent the price of the currency it has agreed to sell exceeds the price of the
currency it has agreed to purchase.  Should forward prices increase, the Fund
will suffer a loss to the extent the price of the currency it has agreed to
purchase exceeds the price of the currency it has agreed to sell.

  The Fund's dealing in forward foreign currency exchange contracts will be
limited to the transactions described above.  Of course, the Fund is not
required to enter into forward contracts with regard to its foreign currency-
denominated securities and will not do so unless deemed appropriate by the
Subadviser.  It also should be realized that this method of hedging against a
decline in the value of a currency does not eliminate fluctuations in the
underlying prices of the securities.  It simply establishes a rate of exchange
at a future date.  Additionally, although such contracts tend to minimize the
risk of loss due to a decline in the value of a hedged currency, at the same
time, they tend to limit any potential gain which might result from an increase
in the value of that currency.

  Shareholders should be aware of the costs of currency conversion.  Although
foreign exchange dealers do not charge a fee for conversion, they do realize a
profit based on the difference (the "spread") between the prices at which they
are buying and selling various currencies.  Thus, a dealer may offer to sell a
foreign currency to the Fund at one rate, while offering a lesser rate of
exchange should the Fund desire to resell that currency to the dealer.

  Investment income received by the Fund from sources within foreign countries
may be subject to foreign income taxes withheld at the source.  The United
States has entered into tax treaties with many foreign countries which entitle
the Fund to a reduced rate of such taxes or exemption from taxes on such income.
It is impossible to determine the effective rate of foreign tax in advance since
the amounts of the Fund's assets to be invested within various countries is not
known.

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 to date has not entered into any repurchase agreements and
has no present intention of doing so in the future.
         
  Except 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).

                                      -3-
<PAGE>
 
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.  Securities with remaining maturities of one year or less at the
date of acquisition are excluded from the calculation.
    
  The Fund's portfolio turnover rates were 46.08% in 1995 and 57.17% in 1994.
     
                                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:
    
 . Borrow money, except for temporary or emergency purposes in an amount not to
  exceed 15% of the value of its total assets;     
    
 . Mortgage or pledge any of its assets, except to the extent necessary to
  effect permitted borrowings on a secured basis and except to enter into escrow
  arrangements in connection with the sales of permitted call options;     

 . Purchase securities (other than closing call options) except for investment,
  buy on "margin," or sell "short."  The Fund has no present intention of
  investing in these types of securities, and will not do so without the prior
  approval of the Fund's Board of Directors.

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

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

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

 . Invest in securities issued by other investment companies, except in
  connection with a merger, consolidation, acquisition or reorganization;
    
 . Purchase or hold any real estate, except the Fund may invest in securities
  secured by real estate or interests therein or issued by persons (including
  real estate investment trusts) which deal in real estate or interests therein.
     
 . Purchase or hold the securities of any issuer, if to its knowledge, directors
  or officers of the Fund individually owning beneficially more than 0.5% of the
  securities of that other company own in the aggregate more than 5% of such
  securities;

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

 . Purchase or sell commodities and commodity contracts;

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

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

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

                                      -4-
<PAGE>
 
  Although not fundamental policies subject to shareholder vote, as long as the
Fund's shares are  registered in certain states, it may not mortgage, pledge or
hypothecate its assets to the extent that the value of such encumbered assets
exceed 10% of the per share offering price of shares of the Fund, it may not
invest in interests in oil, gas or other mineral exploration or development
programs and it must limit to 5% of its gross assets at market value its
combined investments in securities of companies in operation for less than three
years.

  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 Officer and
 (57)               Chairman of the Executive Committee      
                        
                    Managing Director, Chairman and President, J. & W. Seligman
                    & Co. Incorporated, investment managers and advisers; and
                    Seligman Advisers, Inc., advisers; Chairman and Chief
                    Executive Officer, the Seligman Group of Investment
                    Companies; Chairman, Seligman Financial Services, Inc.,
                    broker/dealer; Seligman Holdings, Inc, holding company;
                    Seligman Services, Inc., broker/dealer; and Carbo Ceramics
                    Inc., ceramic proppants for oil and gas industry; Director
                    or Trustee, Seligman Data Corp. , shareholder service agent;
                    Kerr-McGee Corporation, diversified energy company; and
                    Sarah Lawrence College; and a Member of the Board of
                    Governors of the Investment Company Institute; formerly,
                    Chairman, Seligman Securities, Inc., broker/dealer; and J. &
                    W. Seligman Trust Company, trust company.     
         
    
BRIAN T. ZINO*      Director, President and Member of the Executive Committee
 (43)      
                        
                    Director and Managing Director (formerly, Chief
                    Administrative and Financial Officer), J.&W. Seligman & Co.
                    Incorporated, investment managers and advisers; and Seligman
                    Advisers, Inc., advisers; Director or Trustee, the Seligman
                    Group of Investment Companies; President, the Seligman Group
                    of Investment Companies, except Seligman Quality Municipal
                    Fund, Inc. and Seligman Select Municipal Fund, Inc.;
                    Chairman, Seligman Data Corp., shareholder service agent;
                    Director, Seligman Financial Services, Inc., broker/dealer;
                    Seligman Services, Inc., broker/dealer; and Senior Vice
                    President, Seligman Henderson Co., advisers; formerly,
                    Director and Secretary, Chuo Trust - JWS Advisers, Inc.,
                    advisers; and Director, Seligman Securities, Inc.,
                    broker/dealer; and J. & W. Seligman Trust Company, trust
                    company.     
    
FRED E. BROWN*      Director
 (82)      
                        
                    Director and Consultant, J. & W. Seligman & Co.
                    Incorporated, investment managers and advisers; and Seligman
                    Advisers, Inc., advsors; Director or Trustee, the Seligman
                    Group of Investment Companies; Seligman Financial Services,
                    Inc., broker/dealer; Seligman Services, Inc.,
                    broker/dealer; Trudeau Institute, nonprofit biomedical
                    research organization; Lake Placid Center for the Arts,
                    cultural organization; Lake Placid Education Foundation,
                    education foundation; formerly, Director, Seligman
                    Securities, Inc., broker/dealer and J. & W. Seligman Trust
                    Company, trust company.     

                                      -5-
<PAGE>
 
    
JOHN R. GALVIN      Director
 (66)      
                        
                    Dean, Fletcher School of Law and Diplomacy at Tufts
                    University; Director or Trustee, the Seligman Group of
                    Investment Companies; Chairman of the American Council on
                    Germany; a Governor of the Center for Creative Leadership;
                    Director of US LIFE, insurance; National Committee on U.S.-
                    China Relations, National Defense University; Raytheon Co.,
                    electronics; and the Institute for Defense Analysis;
                    Formerly, Ambassador, U.S. State Department; Distinguished
                    Policy Analyst at Ohio State University and Olin
                    Distinguished Professor of National Security Studies at the
                    United States Military Academy. From June, 1987 to June,
                    1992, he was the Supreme Allied Commander, Europe and the
                    Commander-in-Chief, United States European Command. Tufts
                    University, Packard Avenue, Medford, MA 02155     
    
ALICE S. ILCHMAN    Director
 (60)      
                         
                    President, Sarah Lawrence College; Director or Trustee, the
                    Seligman Group of Investment Companies; Chairman, The
                    Rockefeller Foundation, charitable foundation; and Director,
                    NYNEX, telephone company;and the Committee for Economic
                    Development; formerly, Trustee, The Markle Foundation,
                    philanthropic organization; and Director, International
                    Research and Exchange Board, intellectual exchanges. 
                    Sarah Lawrence College, Bronxville, NY 10708      
    
FRANK A. McPHERSON  Director
 (62)      
                        
                    Chairman of the Board and Chief Exe cutive Officer, Kerr-
                    McGee Corporation, energy and chemicals; Director or
                    Trustee, the Seligman Group of Investment Companies;
                    Director of Kimberly-Clark Corporation, consumer products,
                    Bank of Oklahoma Holding Company, American Petroleum
                    Institute, Oklahoma City Chamber of Commerce, Baptist
                    Medical Center, Oklahoma Chapter of the Nature Conservancy,
                    Oklahoma Medical Research Foundation and United Way Advisory
                    Board; Chairman of Oklahoma City Public Schools Foundation;
                    and Member of the Business Roundtable and National Petroleum
                    Council. 
                    123 Robert S. Kerr Avenue, Oklahoma City, OK 73102      
    
JOHN E. MEROW*      Director
 (66)      
                        
                    Chairman and Senior Partner, Sullivan & Cromwell, law firm;
                    Director or Trustee, the Seligman Group of Investment
                    Companies; the Municipal Art Society of New York;
                    Commonwealth Aluminum Corporation; the U. S. Council for
                    International Business and the U.S.-New Zealand Council;
                    Chairman, American Australian Association; the Municipal Art
                    Society of New York; Member of the American Law Institute
                    and Council on Foreign Relations; and Member of the Board of
                    Governors of the Foreign Policy Association and New York
                    Hospital. 
                    125 Broad Street, New York, NY  10004      

                                      -6-
<PAGE>
 
    
BETSY S. MICHEL      Director
 (53)      
                         
                     Attorney; Director or Trustee, the Seligman Group of
                     Investment Companies; and Chairman of the Board of Trustees
                     of St. George's School (Newport, RI). 
                     St. Bernard's Road, P.O. Box 449, Gladstone, NJ 07934     
         
    
JAMES C. PITNEY      Director
 (69)      
                         
                     Partner, Pitney, Hardin, Kipp & Szuch, law firm; Director
                     or Trustee, the Seligman Group of Investment Companies; and
                     Public Service Enterprise Group, public utility. 
                     Park Avenue at Morris County, P.O. Box 1945, Morristown, NJ
                     07962-1945      
    
JAMES Q. RIORDAN     Director
 (68)      
                         
                     Director, Various Corporations; Director or Trustee, the
                     Seligman Group of Investment Companies; The Brooklyn
                     Museum; The Brooklyn Union Gas Company; the Committee for
                     Economic Development; Dow Jones & Co., Inc.; and Public
                     Broadcasting Service; formerly, Co-Chairman of the Policy
                     Council of the Tax Foundation; Director and Vice Chairman,
                     Mobil Corporation; Director, Tesoro Petroleum Companies,
                     Inc.; and Director and President, Bekaert Corporation. 
                     675 Third Avenue, Suite 3004, New York, NY 10017     
         
    
RONALD T. SCHROEDER* Director and Member of the Executive Committee
 (48)      
                         
                     Director, Managing Director and Chief Investment Officer,
                     Institutional, J. & W. Seligman & Co. Incorporated,
                     investment managers and advisers; and Seligman Advisers,
                     Inc., advisers; Director or Trustee, the Seligman Group of
                     Investment Companies; Director, Seligman Holdings, Inc.,
                     holding company; Seligman Financial Services, Inc.,
                     broker/dealer; Seligman Henderson Co., advisers; and
                     Seligman Services, Inc., broker/dealer; formerly,
                     President, the Seligman Group of Investment Companies,
                     except Seligman Quality Municipal Fund, Inc. and Seligman
                     Select Municipal Fund, Inc.; and Director, J. & W. Seligman
                     Trust Company, trust company; Seligman Data Corp.,
                     shareholder service agent and Seligman Securities, Inc.,
                     broker/dealer.     
    
ROBERT L. SHAFER     Director
 (63)      
                         
                     Vice President, Pfizer Inc., pharmaceuticals; Director or
                     Trustee, the Seligman Group of Investment Companies and
                     USLIFE Corporation, life insurance. 
                     235 East 42nd Street, New York, NY 10017      
    
JAMES N. WHITSON     Director
 (61)      
                         
                     Executive Vice President, Chief Operating Officer and
                     Director, Sammons Enterprises, Inc.; Director or Trustee,
                     the Seligman Group of Investment Companies; Red Man Pipe
                     and Supply Company, piping and other materials;and C-SPAN.
                     300 Crescent Court, Suite 700, Dallas, TX  75201      
    
STACEY G. NAVIN      Co-Portfolio Manager
 (31)      
                         
                      Vice President, Investment Officer, J. & W. Seligman & Co.
                      Incorporated, investment managers and advisers; Co-
                      Portfolio Manager, two other open-end investment companies
                      in the Seligman Group of Investment Companies.     

                                      -7-
<PAGE>

     
CHARLES C. SMITH, JR. Vice President and Portfolio Manager
 (39)     
                      Managing Director (formerly, Senior Vice President and
                      Senior 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 Tri-Continental Corporation, closed-end
                      investment company.
    
LAWRENCE P. VOGEL     Vice President
 (39)     
                          
                      Senior Vice President, Finance, J. & W. Seligman & Co.
                      Incorporated, investment managers and advisers; Seligman
                      Financial Services, Inc., broker/dealer; and Seligman
                      Advisers, Inc., advisers; Vice President, the Seligman
                      Group of Investment Companies; Senior Vice President,
                      Finance (formerly, Treasurer), Seligman Data Corp.,
                      shareholder service agent; Treasurer, Seligman Holdings,
                      Inc., holding company; and Seligman Henderson Co.,
                      advisers; formerly, Senior Vice President Seligman
                      Securities, Inc.. broker/dealer and Vice President,
                      Finance, J. & W. Seligman Trust Co., trust company.     
    
FRANK J. NASTA        Secretary
 (31)     
                          
                      Senior Vice President, Law & Regulation and Corporate
                      Secretary, J. & W. Seligman & Co., Incorporated,
                      investment managers and advisors and Seligman Advisers,
                      Inc. advisers; Corporate Secretary, the Seligman Group of
                      Investment Companies; Seligman Financial Services, Inc.,
                      broker/dealer; Seligman Henderson Co., advisors; Seligman
                      Services, Inc., broker/dealers; and Seligman Data Corp.,
                      shareholder service agent; formerly, Secretary, J. & W.
                      Seligman Trust Co., trust company and attorney, Seward &
                      Kissel, law firm.     
    
THOMAS G. ROSE        Treasurer
 (38)     
                          
                      Treasurer, the Seligman Group of Investment Companies; and
                      Seligman Data Corp., shareholder service agent; formerly,
                      Treasurer, American Investors Advisers, Inc. and the
                      American Investors Family of Funds      

  The Executive Committee of the 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.
<TABLE>    
<CAPTION>
 
                                                Compensation Table
                                                                          Pension or     
                                                  Aggregate           Retirement Benefits         Total Compensation
                                                Compensation          Accrued as part of             from Fund and  
   Position With Registrant                     from Fund (1)           Fund Expenses               Fund Complex (2)
   ------------------------                     ------------            -------------               --------------- 
<S>                                             <C>                   <C>                         <C>  
William C. Morris, Director and Chairman             N/A                     N/A                          N/A
Brian T. Zino, Director and President                N/A                     N/A                          N/A
Ronald T. Schroeder, Director                        N/A                     N/A                          N/A
Fred E. Brown, Director                              N/A                     N/A                          N/A
John R. Galvin, Director                          $2,360.24                  N/A                      $41,252.75
Alice S. Ilchman, Director                         3,857.08                  N/A                       68,000.00
Frank A. McPherson, Director                       2,360.24                  N/A                       41,252.75
John E. Merow, Director                            3,785.64(d)               N/A                       66,000.00(d)
Betsy S. Michel, Director                          4,035.63                  N/A                       67,000.00
Douglas R. Nichols, Jr., Director*                 1,425.40                  N/A                       24,747.25
James C. Pitney, Director                          3,857.08(d)               N/A                       68,000.00
</TABLE>     

                                      -8-
<PAGE>
 
<TABLE>
<CAPTION>
                                                                          Pension or     
                                                  Aggregate           Retirement Benefits         Total Compensation
                                                Compensation          Accrued as part of             from Fund and  
   Position With Registrant                     from Fund (1)           Fund Expenses               Fund Complex (2)
   ------------------------                     ------------            -------------               --------------- 
<S>                                             <C>                   <C>                         <C>   
James Q. Riordan, Director                        4,142.80                    N/A                      70,000.00
Herman J. Schmidt, Director*                      1,425.40                    N/A                      24,747.25
Robert L. Shafer, Director                        4,142.79                    N/A                      70,000.00
James N. Whitson, Director                        4,071.36(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, 1995.     

  (2)  As defined in the Fund's Prospectus, the Seligman Group of Investment
Companies consists of seventeen investment companies.
    
* Retired May 18, 1995.     
    
  (d)  Deferred. The total amounts of deferred compensation (including interest)
payable to Messrs. Merow, Pitney and Whitson as of December 31, 1995 were
$77,759, $72,739 and $11,568 respectively. Mr. Pitney no longer defers current
compensation.     

  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.
    
  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 less than 1% of the Fund's Class
A Capital Stock at March 29, 1996.  As of that date, no Directors or officers
owned shares of the Fund's Class D Capital Stock.     

                            MANAGEMENT AND EXPENSES
    
  Under the Management Agreement, dated December 29, 1988, as amended April 10,
1991 and January 1, 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.  Effective January 1, 1996, the management fee is equal to
annual rate of .65% of the Fund's average daily net assets on the first $1
billion of net assets, .60% of the Fund's average daily net assets on the next
$1 billion of net assets, and .55% of the Fund's average daily net assets in
excess of $2 billion.  The management fee amounted to $2,898,605 in 1995,
$2,676,075 in 1994 and $2,645,990 in 1993, which was equivalent to an annual
rate of .48% of the Fund's average net assets in 1995, .49% in 1994 and .49% in
1993.    
    
  The Fund pays all its expenses other than those assumed by the Manager or
Seligman Hendeson Co.,  (the "Subadviser"), including brokerage commissions,
administration, shareholder services and distribution fees, fees and expenses of
independent attorneys and auditors, taxes and governmental fees including fees
and expenses for qualifying the Fund and its shares under Federal and state
securities laws, cost of stock certificates and expenses of repurchase or
redemption of shares, expenses of printing and distributing reports, notices and
proxy materials to shareholders, expenses of printing and filing reports and
other documents with governmental agencies, expenses of shareholders' meetings,
expenses  of corporate data processing and related services, shareholder
recordkeeping and shareholder account services, fees and      

                                      -9-
<PAGE>
 
disbursements of transfer agents and custodians, expenses of disbursing
dividends and distributions, fees and expenses of directors of the Fund not
employed by (or serving as a Director of) the Manager or its affiliates,
insurance premiums and extraordinary expenses such as litigation expenses. The
Manager has undertaken to one state securities administrators, so long as
required, to reimburse the Fund for each year in the amount by which total
expenses, including the management fee, but excluding interest, taxes, brokerage
commissions, distribution fees, and extraordinary expenses, exceed 2 1/2% of the
first $30,000,000 of average net assets, 2% of the next $70,000,000 of average
net assets, and 1 1/2% thereafter. Such reimbursement, if any, will be made
monthly.

         
    
  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 April 10, 1991
to increase the fee rate payable to the Manager by the Fund, were approved by
the Fund's Board of Directors on January 17, 1991 and approved by shareholders
at a special meeting held on April 10, 1991.  The amendments to the Management
Agreement effective January 1, 1996 to increase the fee rate payable to the
Manager by the Fund were approved by the Fund's Board of Directors on September
21, 1995 and by the shareholders at a special meeting on December 12, 1995.  The
Management Agreement will continue in effect until December 31 of each year if
(1) such continuance is approved in the manner required by the 1940 Act (i.e. by
a vote of a majority of the Board of Directors or of the outstanding voting
securities of the Fund and by a vote of a majority of the Directors who are not
parties to the Management Agreement or interested persons of any such party) and
(2) 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 corporation.  See the Appendix for further history of the
Manager.  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.     
    
  Under the Subadvisory Agreement, dated June 1, 1994, as amended January 1,
1996, Seligman Henderson Co. (the "Subadviser") supervises and directs a portion
of the Fund's investment in foreign securities and Depositary Receipts as
designated by the Manager, consistent with the Fund's investment objectives,
policies and principles.  For these services, the Subadviser is paid a fee by
the Manager as described in the Fund's Prospectus.  The Subadvisory Agreement
was initially approved by the Board of Directors at a meeting held on January
20, 1994 and by the shareholders of the Fund on May 19, 1994.  The amendments to
the Subadvisory Agreement, effective January 1, 1996 to increase the subadvisory
fee rate payable by the Manager to the Subadviser, were approved by the Fund's
Board of Directors on September 21, 1995 and at the shareholders at a special
meeting held on December 12, 1995.  The Subadvisory Agreement will continue in
effect until December 31 of each year, and from year to year thereafter if such
continuance is approved in the manner required by the 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
Subadvisory Agreement or interested persons of any such party) and (2) if the
Subadviser shall not have notified the Manager in writing at least 60 days prior
to December 31 of any year that it does not desire such continuance.  The
Subadvisory Agreement may be terminated at any time by the Fund, on 60 days
written notice to the Subadviser.  The Subadvisory Agreement will terminate
automatically in the event of its assignment or upon the termination of the
Management Agreement.     
    
  For the period June 1, 1994 through December 31, 1994, and for the year ended
December 31, 1995, the Subadviser was paid fees by the Manager of $146,005 and
244,337, respectively.     
    
  The Subadviser is a New York general partnership formed by the Manager and
Henderson International, Inc., a controlled affiliate of Henderson
Administration Group plc.  Henderson Administration Group plc, headquartered in
London, is one of the largest independent money managers in Europe.  The Firm
currently manages approximately $19 billion in assets and is recognized as a
specialist in global equity investing.     
    
  Officers, directors and employees of the Manager are permitted to engage in
personal securities transactions, subject to the Manager's Code of Ethics (the
"Ethics Code").  The Ethics Code proscribes certain practices with regard to
personal securities transactions and personal dealings, provides a framework for
the reporting and monitoring of personal securities transactions by the
Manager's Director of Compliance, and sets forth a procedure of identifying, for
disciplinary action, those      

                                     -10-
<PAGE>
 
    
individuals who violate the Ethics Code. The Ethics Code prohibits each of the
officers, directors and employees (including all portfolio managers) of the Man
ger from purchasing or selling any security that the officer, director or
employee knows or believes (i) was recommended by the Manager for purchase or
sale by any client, including the Fund, within the preceding two weeks, (ii) has
been reviewed by the Manager for possible purchase or sale within the preceding
two weeks, (iii) is being purchased or sold by any client, (iv) is being
considered by a research analyst, (v) is being acquired in a private placement,
unless prior approval has been obtained from the Manager's Director of
Compliance, or (vi) is being acquired during an initial or secondary public
offering. The Ethics Code also imposes a strict standard of confidentiality and
requires portfolio managers to disclose any interest they may have in the
securities or issuers that they recommend for purchase by any client.     
    
  The Ethics Code also prohibits (i) each portfolio manager or member of an
investment team from purchasing or selling any security within seven calendar
days of the purchase or sale of the security by a client's account (including
investment company accounts) for which the portfolio manager or investment team
manages and (ii) each employee from engaging in short-term trading (a purchase
and sale or vice-versa within 60 days).  Any profit realized pursuant to either
of these prohibitions must be disgorged.     

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

          ADMINISTRATION, SHAREHOLDER SERVICES AND DISTRIBUTION 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 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.     

  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 therefore) 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 and Subadvisory Agreements recognize that in the purchase and
sale of portfolio securities the Manager and Subadviser will seek the most
favorable price and execution, and, consistent with that policy, may give
consideration to the research, statistical and other services furnished by
brokers or dealers to the Manager and Subadviser for their use, as well as to
the general attitude toward and support of investment companies demonstrated by
such broker or dealers.  Such services include supplemental investment research,
analysis and reports concerning issuers, industries and securities deemed by the
Manager and Subadviser to be beneficial to the Fund.  In addition, the Manager
and Subadviser are authorized to place orders with brokers who provide
supplemental investment and market research and security and 

                                     -11-
<PAGE>
 
economic analysis although the use of such brokers may result in a higher
brokerage charge to the Fund that 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 and Subadviser 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 and Subadviser desire to buy or sell
the same security at the same time the securities purchased or sold are
allocated by the Manager and Subadviser 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.

  Brokerage commissions for the last three fiscal years are set forth in the
following table:
<TABLE>
<CAPTION>
                                                      Year Ended December 31,
                                                      -----------------------
                                                     1995      1994       1993
                                                     ----      ----       ----
<S>                                                <C>       <C>        <C>
Total Brokerage Commissions Paid (1)               $866,610   $947,390  $674,160
 
Brokerage Commissions Paid
   to Seligman Securities, Inc. (2)                     ---        ---    94,089
 
Brokerage Commissions Paid to Others for
  Execution and Research and Statistical Services   866,610    947,390   580,071
</TABLE>
    
Notes:     
    
(1) Not including any spreads on principal transactions on a net basis.     
    
(2) Brokerage commissions paid to Seligman Securities, Inc. were 14.0% of total
    brokerage commissions paid for 1993. The aggregate dollar amount of the
    Fund's transactions for which Seligman Securities, Inc. acted as broker was
    16.4% of the total dollar amount of all commission transactions in 1993. The
    Board adopted procedures effective January 1, 1984, pursuant to which
    Seligman Securities, Inc. was available to the Fund as broker for
    approximately one-half of agency transactions in listed securities
    (exclusive of option and option-related transactions) at commissions rates
    believed in accordance with applicable regulations to be fair and
    reasonable. As of March 31, 1993, Seligman Securities, Inc. ceased
    functioning as a broker for the Corporation and its other clients.     

                    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 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, 1995, the maximum offering price of the Fund's
shares is as follows:     

<TABLE>    
<CAPTION>
  Class A
  <S>                                                <C>
  Net asset value per Class A share...............   $14.19
                                                     ------
  Maximum sales load (4.75% of offering price)....     0.71
                                                     ------
  Offering price to public........................   $14.90
                                                     ======
</TABLE>      

                                     -12-
<PAGE>
 
<TABLE>     
<CAPTION> 
  Class B and Class D
  <S>                                                <C> 
  Net asset value and offering price per  share*..   $14.16
                                                     ======
</TABLE>      

- ---------
    
* Class B shares are subject to a CDSL declining from 5% in the first year after
  purchase to 0% after 6 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.     

Class A Shares - Reduced Front-End Sales Loads
    
Reductions Available.  Shares of any  Seligman Mutual Fund sold with a front-
end sales load in a continuous offering will be eligible for the following
reductions:     
    
  Volume Discounts are provided if the total amount being invested in Class A
shares of the Fund alone, or in any combination of shares of the other mutual
funds in the Seligman Group which were sold with a front-end 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 shares of the other mutual funds in
the Seligman Group which were sold with a front-end sales load with the total
net asset value of shares of those Mutual Funds already owned that were sold
with a front-end sales load and the total net asset value of shares of Seligman
Cash Management Fund which were acquired through an exchange of shares of
another mutual fund in the Seligman Group on which there was a front-end sales
load at the time of purchase 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 mutual fund in the Seligman Group on which there was a front-
end sales load at the time of purchase will be taken into account in orders
placed through a dealer, however, only if Seligman Financial Services, Inc.
("SFSI") is notified by an investor or dealer of the amount owned at the time
your 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 sales loads in accordance with the schedule in the
Prospectus, based on the total amount of Class A shares of the Fund that the
letter states the investor intends to purchase plus the total net asset value of
shares sold with a front-end sales load of the other mutual funds in the
Seligman Group already owned and the total net asset value of shares of Seligman
Cash Management Fund which were acquired through an exchange of shares of
another mutual fund in the Seligman Group on which there was a front-end sales
load at the time of purchase.  Reduced sales loads also may apply to purchases
made within a 13-month period starting up to 90 days before the date of
execution of a letter of intent.  For more information concerning the terms of
the letter of intent, see "Terms and Conditions - Letter of Intent - Class A
Shares Only"  in the back of the Prospectus.     
    
  Persons Entitled To Reductions.  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; or a trustee or other
fiduciary purchasing for a single fiduciary account.  Employee benefit plans
qualified under Section 401 of the Internal Revenue Code of 1986, as amended,
organizations tax exempt under Section 501 (c)(3) or (13), 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.

                                     -13-
<PAGE>
 
    
  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," (i) which have at least $1 million invested in the
Seligman Group of Mutual Funds or (ii) of employers who have at least 50
eligible employees to whom such plan is made available or, regardless of the
number of employees, if such plan is established or maintained by any dealer
which has a sales agreement with SFSI.  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.     
    
  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").  In
accordance with Texas securities regulations, should the Fund accept securities
in payment for shares, such transactions would be limited to a bona fide
reorganization, statutory merger, or to other acquisitions of portfolio
securities (except for municipal debt securities issued by state political
subdivisions or their agencies or instrumentalities) which meet the investment
objectives and policies of the investment company; are acquired for investment
and not for resale; are liquid securities which are not restricted as to
transfer either by law or liquidity of market; and have a value which is readily
ascertainable (and not established only by evaluation procedures) as evidences
by a listing on the American Stock Exchange, the New York Stock Exchange
("NYSE") or NASDAQ.     

  Further Types of Reductions. Class A shares may be issued without a sales load
in connection with the acquisition of cash and securities owned by other
investment companies and personal holding companies, to financial institution
trust departments, to registered investment advisers exercising discretionary
investment authority with respect to the purchase of Fund shares, or pursuant to
sponsored arrangements with organizations which make recommendations to, or
permit group solicitation of, its employees, members or participants in
connection with the purchase of shares of the Fund, to separate accounts
established and maintained by an insurance company which are exempt from
registration under Section 3(c)(11) of the 1940 Act, to registered
representatives (and their spouses and minor children) and employees of any
dealer that has a sales agreement with SFSI, to shareholders of mutual funds
with investment objectives and policies similar to the Fund's who purchase
shares with redemption proceeds of such funds and to certain unit investment
trusts as described in the Prospectus.
    
  Class A shares may be issued without a sales load to present and retired
directors, trustees, officers, employees and their spouses (and family members
of the foregoing) of the Funds, 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 may also be made to employee benefit plans and
thrift plans for such persons and to any investment advisory, custodial, trust
or other fiduciary account managed or advised by the 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      

                                     -14-
<PAGE>
 
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, an affiliate of the Manager, acts as general distributor of the shares
of the Fund and of the other mutual funds in the Seligman Group The Fund and
SFSI are parties to a Distributing Agreement, dated January 1, 1993. As general
distributor of the Fund's 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 $83,458 in 1995, after allowance of $1,076,487 as commissions
to dealers; $46,173 in 1994, after allowance of $355,656 as commissions to
dealers; and $38,939 in 1993, after allowance of $302,241 as commissions to
dealers. No Class B shares were were outstanding throughout the 3 year period
ended December 31, 1995. For the years ended December 31, 1995 and 1994 and for
the period May 3, 1993 through December 31, 1993, SFSI retained CDSL charges
from Class D shares amounting to $8,440, $3,862, and $1,072, 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
period ended December 31, 1995, SSI received commissions of $26,338 from sales
of Fund shares.  SSI also received distribution and service fees of $315,230,
pursuant to the Plan.     

         
                                   VALUATION
    
  Net asset value per share of each class of the Fund is determined as of the
close of trading on the NYSE, (normally, 4:00 p.m. Eastern time), on each day
that the NYSE is open. The NYSE is currently closed on New Year's Day,
Presidents' Day, Good Friday,  Memorial Day, Independence Day, Labor Day,
Thanksgiving Day and Christmas Day.   The Fund will also determine net asset
value for each class 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 higher 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
and securities for which there are no recent sales transactions are valued based
on quotations provided by primary market makers in such securities.  Any
securities 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 on an amortized cost basis based on the value of such
date unless the Board determines that this amortized cost value does not
represent fair market value.  Expenses and fees, including the investment
management fee, are accrued daily and taken into account for the purpose of
determining the net asset value of Fund shares.  Premiums received on the sale
of call options will be included in the net asset value, and the current market
value of the options sold by the Fund will be subtracted from net asset value.
     
  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 the NYSE.  The values
of such securities used in computing the net asset value of the shares of the
Fund are determined prior to the close of 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 

                                     -15-
<PAGE>
 
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.

                                  PERFORMANCE
    
  The Fund's average annual total returns of Class A shares for the one-year,
five-year and ten-year periods ended on December 31, 1995 were 22.12%,14.65% and
12.51% respectively. These returns were computed by subtracting the maximum
sales load of $47.50 (4.75% of public offering price) and assuming that all of
the dividends and 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 return was then calculated by
calculating the annual rate required for the initial payment to grow to the
amount which would have been received upon redemption (i.e., the average annual
compound rate of return). The average annual total returns for Class D shares of
the Fund for the year ended December 31, 1995 and since inception through
December 31, 1995 were 26.17% and 11.69%, respectively. These returns were
computed assuming that all of the dividends and distributions paid by the Fund's
Class D shares, were reinvested over the relevant time period. It was then
assumed that at the end of each period, the entire amount was redeemed,
subtracting the 1% CDSL, if applicable. Performance information is not provided
for Class B shares because no Class B shares were outstanding prior to April 22,
1996.    
    
  Table A below illustrates the total return (income and capital) on Class A
shares of the Fund with dividends 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, 1986 had a value of $3,251 on
December 31, 1995, resulting in an aggregate total return of 225.07%.  Table B
illustrates the total return (income and capital) on Class D shares of the Fund
with dividends 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 $1,342 on December 31, 1995 resulting
in an aggregate total return of 34.23%.  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>    
<CAPTION>
                               TABLE A - CLASS A SHARES
 
                                               Value of
Year         Value of Initial   Value of Gain  Dividend                  Total
Ended (1)     Investment (2)    Distribution   Invested  Total Value(2)  Return (3)
- ---------    ----------------   ------------   --------  --------------  ----------
<S>          <C>                <C>            <C>       <C>             <C>  
12/31/86          $883            $  245        $ 35        $1,163
12/31/87           749               355          61         1,165
12/31/88           765               411         106         1,282
12/31/89           830               633         163         1,626
12/31/90           718               652         193         1,563
12/31/91           850               891         289         2,030
12/31/92           867             1,025         359         2,251
12/31/93           913             1,226         446         2,585
12/31/94           821             1,245         470         2,536
12/31/95           961             1,662         628         3,251       225.07 %
</TABLE>     

                                     -16-
<PAGE>
 
                             TABLE B - 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 (3)
- ---------    ----------------   ------------   --------  --------------  ----------
<S>          <C>                <C>            <C>       <C>             <C>   
12/31/93          $1,013            $ 62         $16        $1,091
12/31/94             909             115          32         1,056
12/31/95           1,065             220          57         1,342         34.23%
</TABLE>     
    
1 For the ten years ended December 31, 1995; 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, assumes that all dividends and capital gain
  distributions were taken in cash and reflects changes in the net asset value
  of the shares purchased with the hypothetical initial investment. "Total
  Value" reflects the effect of the CDSL, if applicable, assumes investment of
  all dividends and capital gain distributions and reflects changes in the net
  asset value.

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 distributions that would have been paid
  during the period on such shares assuming that each dividend or distribution
  was invested in additional shares at net asset value; calculating the total
  value of the investment at the end of the period; subtracting the CDSL on
  Class D shares, if applicable; and finally, by dividing the difference
  between the amount of the hypothetical initial investment at the beginning of
  the period and its total value at the end of the period by the amount of the
  hypothetical initial investment.

  No adjustments have been made for any income taxes payable by investors on
  dividends invested or gain distributions taken in shares.
    
  The total return and average annual total return of the Class A shares quoted
from time to time through December 31, 1992 does not reflect the deduction of
the administration, shareholder services and distribution fee, effective January
1, 1993;  through April 10, 1991 also does not reflect the increased management
fee approved by shareholders on April 10, 1991, and through December 31, 1995,
does not reflect the increased management fee approved by shareholders on
December 12, 1995, and effective on January 1, 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

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, 127 West 10th Street, 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.

                             FINANCIAL STATEMENTS
    
  The Annual Report to Shareholders for the year ended December 31, 1995 is
incorporated by reference into this Statement of Additional Information.  The
Annual Report contains a schedule of the investments as of December 31, 1995, as
well as certain other financial information as of that date.  The Annual Report
will be furnished, without charge, to investors who request copies of the Fund's
Statement of Additional Information.     

                                     -17-
<PAGE>
 
                                   APPENDIX

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


   Seligman's beginnings date back to 1837, when Joseph Seligman, the oldest of
eight brothers, arrived in the United States from Germany.  He earned his living
as a pack peddler in Pennsylvania, and began sending for his brothers.  The
Seligmans became successful merchants, establishing businesses in the South and
East.
    
   Backed by nearly thirty years of business success - culminating in the sale
of government securities to help finance the Civil War - Joseph Seligman, with
his brothers, established the international banking and investment firm of J. &
W. Seligman & Co.  In the years that followed, the Seligman Complex played a
major role in the geographical expansion and industrial development of the
United States.     
    
The Seligman Complex:     

 .... Prior to 1900

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

 ...1900-1910

         Helps Congress finance the building of the Panama Canal.

 ...1910s

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

 ...1920s

         Participates in hundreds of underwritings including those for some of
         the country's largest companies: Briggs Manufacturing, Dodge Brothers,
         General Motors, Minneapolis-Honeywell Regulatory Company, Maytag
         Company, United Artists Theater Circuit and Victor Talking Machine
         Company.
         Forms Tri-Continental Corporation in 1929, today the nation's largest,
         diversified closed-end equity investment company, with over $2 billion
         in assets, and one of its oldest.

 ...1930s
             
         Assumes management of Broad Street Investing Co. Inc., its first mutual
         fund, today known as Seligman Common Stock Fund, Inc..
         Establishes Investment Advisory Service.      

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

                                     -18-
<PAGE>
 
    
 ...1950-1989      
             
         Develops new open-end investment companies. Today, manages more than 40
         mutual fund portfolios.
         Helps pioneer state-specific, tax-exempt municipal bond funds, today
         managing a national and 18 state-specific tax-exempt funds.
         Establishes J. & W. Seligman Trust Company, and J. & W. Seligman
         Valuations Corporation.
         Establishes Seligman Portfolios, Inc., an investment vehicle offered
         through variable annuity products.     
    
 ...1990s      
             
         Introduces Seligman Select Municipal Fund and Seligman Quality
         Municipal Fund, two closed-end funds that invest in high-quality
         municipal bonds.
         In 1991 establishes a joint venture with Henderson Administration Group
         plc, of London, known as Seligman Henderson Co., to offer global
         investment products.
         Introduces Seligman Frontier Fund, Inc., a small capitalization mutual
         fund.
         Launches Seligman Henderson Global Fund Series, Inc., which today
         offers four separate series: Seligman Henderson International Fund,
         Seligman Henderson Global Growth Opportunities Fund, Seligman Henderson
         Global Smaller Companies Fund and Seligman Henderson Global Technology
         Fund.     

                                     -19-
<PAGE>
 
                            12/31/95 ANNUAL REPORT

- --------------------------------------------------------------------------------
                              66TH Annual Report

                                   Seligman
                                    Common
                                     Stock
                                  Fund, Inc.


                               December 31, 1995
                                    [logo]
- --------------------------------------------------------------------------------
                           A Growth and Income Fund
                              Established in 1930

                       Seligman Financial Services, Inc.
                                an affiliate of
                                    [logo]
                            J. & W. Seligman & Co.
                                 incorporated
                               established 1864

                      100 Park Avenue, New York, NY 10017
This report is intended only for the information of shareholders or those who
have received the offering prospectus covering shares of Capital Stock of
Seligman Common Stock Fund, Inc., which contains information about the sales
charges, management fee, and other costs. Please read the prospectus carefully
before investing or sending money.

                                                                     EQCS2 12/95
<PAGE>
 
================================================================================
SELIGMAN COMMON STOCK FUND
- --------------------------------------------------------------------------------


A mutual fund that seeks to 
produce favorable current 
income and long-term growth of 
both income and capital value without 
exposing capital to undue risk.




HIGHLIGHTS OF 1995
- --------------------------------------------------------------------------------
<TABLE>
<CAPTION>

                                                                 DECEMBER 31, 1995                DECEMBER 31, 1994
                                                         ---------------------------     -----------------------------
                                                              CLASS A        CLASS D           CLASS A        CLASS D
- ----------------------------------------------------------------------------------------------------------------------

<S>                                                          <C>             <C>              <C>             <C>    
Net Assets (in thousands)..............................      $614,400        $46,564          $510,956        $14,416
- ----------------------------------------------------------------------------------------------------------------------
Net Asset Value per Share..............................        $14.19         $14.16            $12.12         $12.07
  With December 1995 Gain Distribution
    Taken in Shares....................................         15.14          15.11                --             --
  Increase in Net Asset Value with Gain
    Distribution Taken in Shares (1) ..................         24.92%         25.19%               --             --
- ----------------------------------------------------------------------------------------------------------------------
Dividends Paid per Share...............................         $0.36         $0.218             $0.37          $0.23

  With December 1994 Gain Distribution
     Taken in Shares...................................          0.38          0.231                --             --
Distribution of Realized Gain per Share................         0.944          0.944              0.72           0.72
- ----------------------------------------------------------------------------------------------------------------------
Total Expenses per Dollar of
  Average Net Assets...................................       $0.0093        $0.0172        $0.0085         $0.0196
</TABLE>

(1)      Excluding effect of dividends paid.

                                       1
<PAGE>
 
================================================================================
TO THE SHAREHOLDERS
- --------------------------------------------------------------------------------


Your Fund performed favorably during the past year, though its performance
trailed the Standard & Poor's 500 Composite Stock Price Index (S&P 500). The S&P
500's total return was driven by better-than-average advances by the companies
with the largest market capitalizations, and therefore heaviest weightings, in
the Index. The S&P 500 outperformed more than 87% of the US equity funds. Long-
term performance results and an interview with your Portfolio Managers begin on
page 3.

     On December 27, your Fund paid a $0.10 per share dividend to Class A
shareholders of record December 21, and a $0.057 dividend to Class D
shareholders. For both Class A and D shares, net realized gain per share from
investment transactions for the year totaled $1.19. Net unrealized gain per
share totaled $3.69 at December 31. A realized gain distribution of $0.944 was
paid on December 27 to shareholders of record December 21.

     The US equity markets had a banner year. After a pessimistic start, many
factors including low inflation, falling interest rates, and strong corporate
earnings paved the way for a memorable year.

     Overall, the market indices tell the best story. The S&P 500, which had its
second best gain since 1957, was up 34.11%, and other indices such as the New
York Stock Exchange Composite and the Wilshire 5000 were up 30% or more for the
year. The leading market indices have only twice, since the end of World War II,
risen more than 1995's powerful advance.

     The equity markets, however, did teeter towards the end of the year due to
the Federal budget stalemate between the White House and Congress, which brought
on fears of higher inflation and interest rates. Nevertheless, the deadlock in
Washington did not deter the Federal Reserve Board from lowering short-term
interest rates on December 19 -- a move that quickly rejuvenated the equity
markets.

     Looking forward, the slowing economy, the budget negotiations, and the 1996
Presidential election are a few of the factors that may create somewhat more
volatile markets in the year ahead. We remain optimistic about your Fund's
performance and will continue to search for, and invest in, those companies that
can sustain earnings growth in a challenging and competitive global business
environment -- a strategy we believe is key to investment performance.

     A Special Meeting of Shareholders was held on December 12, at which several
proposals were voted on. The results of the Special Meeting appear on page 21.
We thank you for your continued investment in Seligman Common Stock Fund, and
look forward to serving your investment needs in 1996 and the years ahead.

By order of the Board of Directors,

/S/ William C. Morris


William C. Morris
Chairman


                         /s/ Brian T. Zino


                         Brian T. Zino
                         President

February 2, 1996


                                       2
<PAGE>
 
================================================================================
ANNUAL PERFORMANCE OVERVIEW
- --------------------------------------------------------------------------------


The following are biographies of your Portfolio Managers, a discussion with them
regarding Seligman Common Stock Fund, and a comparison chart and table of your
Fund's performance against the Standard & Poor's 500 Composite Stock Price Index
and the Lipper Growth and Income Fund Average.


YOUR PORTFOLIO MANAGERS

- -----------------------     CHARLES C. SMITH, JR. is a Managing Director of J. &
                            W. Seligman & Co. Incorporated and has been
                            Portfolio Manager of Seligman Common Stock Fund
                            since December 1991. Mr. Smith is also Portfolio
                            Manager of Seligman Income Fund and Tri-Continental
                            Corporation. In addition, Mr. Smith is Vice
                            President of Seligman Portfolios, Inc. and Portfolio
                            Manager of its Common Stock and Income portfolios.
                            Mr. Smith joined Seligman in 1985 as Vice President,
                            Investment Officer. He was promoted to Senior Vice
                            President, Senior Investment Officer in August 1992,
         PHOTO              and to Managing  Director in January 1994. STACEY G.
                            NAVIN, Vice President of J. & W. Seligman & Co.
                            Incorporated, has been Co-Portfolio Manager of
                            Seligman Common Stock Fund and Seligman Income Fund
                            since December 1991. Ms. Navin joined Seligman in
                            1986 as a research analyst and assumed portfolio
                            management responsibilities in 1988. Mr. Smith and
                            Ms. Navin are supported by a group of investment
                            professionals dedicated to the growth and income
                            investment discipline, and to the objectives of
- -----------------------     Seligman Common Stock Fund.

IAIN C. CLARK, Chief Investment Officer of Seligman Henderson Co., is
responsible for the investment activities of Seligman Common Stock Fund's
Subadviser, Seligman Henderson Co. Mr. Clark is also head of International
Investments for, and a Director of, Henderson Administration Group plc, an
investment manager in London, England. He has been with Henderson since 1985.


YOUR MANAGERS' INVESTMENT STRATEGY
"OUR DECISION TO MODESTLY OVERWEIGHT FINANCIAL STOCKS, BASED ON OUR EXPECTATION
FOR A DECLINE IN INTEREST RATES IN 1995, CONTRIBUTED GREATLY TO YOUR FUND'S
STRONG PERFORMANCE. WE CONTINUE TO REMAIN BROADLY DIVERSIFIED IN OUR STOCK
SELECTION. WHILE A STRATEGY OF BETTING HEAVILY ON INDIVIDUAL SECTORS MIGHT HAVE
IMPROVED NEAR-TERM PERFORMANCE, WE BELIEVE IT WOULD HAVE LOWERED CURRENT INCOME
AND JEOPARDIZED YOUR FUND'S 52-YEAR RECORD OF INCREASING INCOME FOR SHAREHOLDERS
WHO REINVEST THEIR CAPITAL GAIN DISTRIBUTIONS.

"AS PART OF YOUR FUND'S INVESTMENT POLICY, IT MAY INVEST UP TO 10% OF ASSETS IN
INTERNATIONAL EQUITIES. BY INVESTING INTERNATIONALLY, SELIGMAN COMMON STOCK FUND
HAS THE ABILITY TO PARTICIPATE IN NON-US MARKETS, THUS SEEKING TO ACHIEVE
GREATER PORTFOLIO DIVERSIFICATION WITH LESS OVERALL RISK. HOWEVER, IN PERIODS
WHEN INTERNATIONAL MARKETS LAG THE US MARKETS, SUCH AS 1995, INTERNATIONAL
EXPOSURE CAN DAMPEN OVERALL INVESTMENT RESULTS."


                                       3
<PAGE>
 
================================================================================
ANNUAL PERFORMANCE OVERVIEW (continued)
- --------------------------------------------------------------------------------



ECONOMIC FACTORS AFFECTING SELIGMAN COMMON STOCK FUND

"STABLE ECONOMIC GROWTH IN THE US, COUPLED WITH DECLINING INTEREST RATES,
PROVIDED A POSITIVE BACKDROP FOR STRONG PERFORMANCE BY FINANCIAL MARKETS IN
1995. ALSO, THE CONTINUATION OF LOW INFLATION BENEFITED BOTH STOCKS AND BONDS,
WHICH MADE THESE INVESTMENTS MORE ATTRACTIVE RELATIVE TO REAL ASSETS SUCH AS
GOLD OR REAL ESTATE."



INDIVIDUAL SECTOR PERFORMANCE

"ALMOST EVERY INDUSTRY GROUP ENDED 1995 WITH STRONG RESULTS. FINANCIAL AND
TECHNOLOGY SECTORS ENJOYED PARTICULARLY GOOD PERFORMANCE, AND CONSUMER STOCKS
REBOUNDED FROM THEIR DEPRESSED LEVELS OF 1994. EXAMPLES OF COMPANIES IN YOUR
PORTFOLIO THAT SHOWED STRONG GAINS IN 1995 WERE FEDERAL NATIONAL MORTGAGE
ASSOCIATION, BANK OF NEW YORK, AMERICAN HOME PRODUCTS, AND PEPSICO. ON THE OTHER
HAND, RETAIL ISSUES SUCH AS MAY DEPARTMENT STORES CONTINUED TO LAG AS CONSUMER
SPENDING REMAINED WEAK."


OUTLOOK FOR THE YEAR AHEAD

"WE BELIEVE THAT  CONTINUED  LOW  INFLATION  AND MODEST  ECONOMIC  GROWTH SHOULD
PROVIDE A POSITIVE  ENVIRONMENT FOR INVESTORS IN 1996. STOCK SELECTION,  THOUGH,
WILL BE AN IMPORTANT FACTOR IN PERFORMANCE.  WE ARE COMMITTED TO THE MAINTENANCE
OF A BROADLY  DIVERSIFIED  PORTFOLIO,  FOCUSING  ON  COMPANIES  WITH  REASONABLE
CURRENT  INCOME,  AND GOOD  EARNINGS AND  DIVIDEND  GROWTH  PROSPECTS.  FURTHER,
INTERNATIONAL  INVESTMENTS SHOULD BE A POSITIVE FACTOR AS THE YEAR PROGRESSES IF
FOREIGN MONETARY AUTHORITIES LOWER INTEREST RATES ABROAD."



                                       4
<PAGE>
 
================================================================================
PERFORMANCE COMPARISON CHART AND TABLE                         December 31, 1995
- --------------------------------------------------------------------------------


This chart compares a $10,000 hypothetical investment made in Seligman Common
Stock Fund Class A shares, with and without the maximum initial sales charge of
4.75%, for the 10-year period ended December 31, 1995, to a $10,000 hypothetical
investment made in the Standard & Poor's 500 Composite Stock Price Index (S&P
500) and the Lipper Growth & Income Fund Average (Lipper Growth & Income) for
the same period. The performance of Seligman Common Stock Fund Class D shares is
not shown in this chart, but is included in the table below. It is important to
keep in mind that the S&P 500 excludes the effect of any fees or sales charges,
and the Lipper Growth & Income excludes the effects of any sales charges.

[THE  FIGURES IN THE  FOLLOWING  TABLE APPEAR IN THE FORM OF A LINE CHART IN THE
PRINTED REPORT]

<TABLE> 
<CAPTION> 
          Common Stock Fund    Common Stock Fund     Lipper Growth     S&P Stock
Date       with sales load     without sales load    & Income Index      Index
- ----      -----------------    ------------------    --------------    ---------
<S>       <C>                  <C>                   <C>               <C>      
12/31/85      9,525.75             10,000.01         10,000            10,000
3/31/86       11,234.95            11,794.3          11,384            11,410.50
6/30/86       11,947.12            12,541.93         11,884.9          12,083.03
9/30/86       10,942.97            11,487.78         11,199.14         11,240.12
12/31/86      11,625.63            12,204.43         11,633.66         11,866.53
3/31/87       13,791.71            14,478.37         13,598.59         14,400.28
6/30/87       13,988.42            14,684.88         13,995.67         15,123.17
9/30/87       14,551.05            15,275.53         14,699.65         16,120.85
12/31/87      11,650.17            12,230.23         11,903.78         12,489.63
3/31/88       12,235.00            12,844.52         12,757.28         13,200.78
6/30/88       12,872.41            13,513.33         13,474.24         14,079.96
9/30/88       12,744.91            13,379.48         13,516.01         14,127.69
12/31/88      12,824.35            13,462.88         13,784.98         14,563.81
3/31/89       13,563.69            14,239.02         14,672.73         15,596.38
6/30/89       14,351.48            15,066.03         15,714.49         16,973.08
9/30/89       15,760.93            16,545.65         17,064.37         18,790.72
12/31/89      16,257.74            17,067.2          17,057.54         19,178.56
3/31/90       16,099.58            16,901.17         16,643.04         18,601.67
6/30/90       17,104.12            17,955.73         17,488.51         19,771.90
9/30/90       14,120.69            14,823.75         15,211.51         17,054.65
12/31/90      15,625.54            16,403.53         16,326.51         18,583.43
3/31/91       18,190.49            19,096.19         18,675.89         21,282.86
6/30/91       17,818.44            18,705.62         18,597.45         21,234.12
9/30/91       19,195.20            20,150.93         19,637.05         22,369.72
12/31/91      20,302.46            21,313.32         21,048.96         24,245.20
3/31/92       20,641.88            21,669.64         21,059.48         23,632.77
6/30/92       20,790.31            21,825.46         21,059.28         24,082.26
9/30/92       21,349.23            22,412.2          21,647.98         24,841.58
12/31/92      22,507.59            23,628.23         22,944.69         26,092.60
3/31/93       23,599.71            24,774.74         24,011.62         27,232.06
6/30/93       24,167.66            25,370.98         24,225.32         27,364.68
9/30/93       24,774.93            26,008.49         25,097.44         28,072.06
12/31/93      25,850.87            27,137.98         25,674.68         28,722.49
3/31/94       24,637.03            25,863.7          24,886.46         27,633.33
6/30/94       24,767.41            26,000.58         24,804.34         27,749.67
9/30/94       25,740.93            27,022.58         25,875.34         29,106.35
12/31/94      25,362.51            26,625.3          25,469.63         29,101.69
3/31/95       27,520.64            28,890.88         27,502.11         31,935.32
6/30/95       29,521.53            30,991.41         29,732.53         34,983.87
9/30/95       31,387.40            32,950.19         31,858.41         37,764.04
12/31/95      32,507.18            34,125.72         33,301.59         40,037.43
</TABLE> 
                                                                    
The table below shows the average annual total returns for the one-, five-, and
10-year periods through December 31, 1995, for the Seligman Common Stock Fund
Class A shares, with and without the maximum initial sales charge of 4.75%, the
S&P 500, and the Lipper Growth & Income. Also included in the table are the
average annual total returns for the one-year and since-inception periods
through December 31, 1995, for the Seligman Common Stock Fund Class D shares,
with and without the effect of the 1% contingent deferred sales load ("CDSL")
imposed on shares redeemed within one year of purchase, the S&P 500, and the
Lipper Growth & Income.

AVERAGE ANNUAL TOTAL RETURNS

<TABLE> 
<CAPTION> 
                                          ONE         FIVE        10 
                                          YEAR        YEARS      YEARS  
                                          ----        -----      -----  
<S>                                       <C>         <C>        <C> 
Seligman Common Stock Fund                                              
  Class A with sales charge ...........   22.12%      14.65%     12.51%
  Class A without sales charge ........   28.17       15.78      13.06
S&P 500 ...............................   37.58       16.59      14.86
Lipper Growth & Income ................   30.75       15.32      12.78
</TABLE> 

<TABLE> 
<CAPTION> 
                                                      SINCE   
                                          ONE       INCEPTION    
                                          YEAR        5/3/93    
                                          ----        ------
<S>                                       <C>         <C> 
Seligman Common Stock Fund             
  Class D with CDSL ...................   26.17%        n/a       
  Class D without CDSL ................   27.17       11.69%     
S&P 500 ...............................   37.58       16.62* 
Lipper Growth & Income ................   30.75       13.78*   
</TABLE> 
                                                 
*From 4/30/93

No adjustment was made to performance for periods prior to January 1, 1993, the
commencement date for the annual Administration, Shareholder Services and
Distribution Plan fee of up to 0.25% of average daily net assets of Class A
shares. THE PERFORMANCE OF CLASS D SHARES WILL BE GREATER THAN OR LESS THAN THE
PERFORMANCE SHOWN FOR CLASS A SHARES, BASED ON THE DIFFERENCES IN SALES CHARGES
AND FEES PAID BY SHAREHOLDERS. Performance data quoted represent changes in
prices and assume that all distributions within the period are invested in
additional shares. The investment return and principal value of an investment
will fluctuate so that shares, if redeemed, may be worth more or less than their
original cost. Past performance is not indicative of future investment results.


                                       5
<PAGE>
 
================================================================================
SELIGMAN COMMON STOCK FUND
- --------------------------------------------------------------------------------

FEDERAL TAX STATUS OF 1995
GAIN DISTRIBUTION FOR
TAXABLE ACCOUNTS


The quarterly dividends paid to both Class A and Class D shareholders in 1995
are taxable as ordinary income for federal tax purposes. It makes no difference
whether you received them in cash or in shares. Under the Internal Revenue Code,
63% of the dividend paid to both Class A and Class D shareholders has been
designated as qualifying for the dividend received deduction available to
corporate shareholders. In order to claim the dividend received deduction for
this distribution, corporate shareholders must have held the Fund's shares for
at least 46 days.

   A distribution of $0.944 per share, consisting of $0.867 from net long-term
and $0.077 from net short-term gain realized on investments in 1995 was paid on
December 27, 1995, to both Class A and D shareholders. The distribution from net
long-term gain is designated as a "capital gain dividend" for federal income tax
purposes and is taxable to shareholders in 1995 as a long-term gain from the
sale of capital assets, no matter how long your shares have been owned or
whether the distribution was paid in additional shares or cash. However, if
shares on which a long-term capital gain distribution was received are
subsequently sold, and such shares were held for six months or less from date of
purchase, any loss would be treated as long-term to the extent it offsets the
long-term gain distribution. Net short-term gain is taxable as ordinary income
whether paid to you in cash or shares.

   If the distribution was paid in shares, the per share cost basis for federal
income tax purposes is $14.04 for Class A shares and $14.01 for Class D shares.

   A year-end statement of account showing activity for 1995 and a combined Form
1099-DIV/B have been mailed to each shareholder. The Form 1099-B shows the
proceeds of any redemptions paid to shareholders during the year and reported to
the Internal Revenue Service as required by federal regulations. Form 1099-DIV
shows the amount of the distribution from gain on investments paid during the
year.


                                       6
<PAGE>
 
================================================================================
SELIGMAN COMMON STOCK FUND
- --------------------------------------------------------------------------------


DIVERSIFICATION OF ASSETS December 31, 1995

<TABLE>
<CAPTION>
                                                                                           PERCENT    PERCENT OF
                                                                                           OF NET     NET ASSETS
                                              ISSUES      COST              VALUE          ASSETS    DEC. 31, 1994
                                              ------  ------------      ------------      --------   -------------
<S>                                            <C>    <C>               <C>                 <C>          <C>  
NET CASH AND SHORT-TERM HOLDINGS ...........     1    $ 34,262,797      $ 34,262,797          5.2          2.1
                                               ---    ------------      ------------        -----        -----
COMMON STOCKS:
Advertising.................................     1       4,272,125         7,450,000          1.1          1.0
Aerospace/Defense...........................     2       9,468,688        11,833,125          1.8           --
Apparel and Textiles........................     2       7,427,053         8,045,313          1.2          1.0
Automotive and Related......................     4       8,289,508        10,860,566          1.6          1.3
Chemicals...................................     6      13,351,544        21,124,432          3.2          6.7
Computers and Business Services ............    --              --                --           --          3.2
Construction................................     1       3,606,295         4,062,500          0.6           --
Consumer Goods and Services.................    12      33,572,005        60,302,018          9.1          9.4
Drugs and Health Care.......................     7      24,966,937        37,470,000          5.7          3.4
Electric and Gas Utilities..................     9      36,891,744        41,697,317          6.3          2.4
Electronics.................................     1       1,459,838         5,700,000          0.9          1.1
Energy......................................     9      31,743,516        49,473,019          7.5          7.5
Finance and Insurance.......................    17      47,143,820        76,544,642         11.6         13.6
Food........................................     5      21,752,010        32,793,750          5.0          5.0
Industrial Equipment........................     5      13,712,786        22,162,936          3.3          2.8
Leisure and Entertainment...................     1         340,032           363,000          0.1           --
Machinery...................................    --              --                --           --          0.8
Office Equipment............................     1       3,099,900         7,050,000          1.1          0.9
Paper and Packaging.........................     4      11,912,945        15,676,762          2.4          3.0
Printing and Publishing.....................     5      15,620,034        18,561,350          2.8          1.3
Restaurant..................................     1       2,935,000         4,250,000          0.6          0.5
Retail Trade................................     9      35,818,500        35,226,875          5.3          5.6
Steel.......................................     2       4,223,950         4,083,750          0.6           --
Technology..................................     2       2,964,000         3,837,783          0.6           --
Telecommunications..........................     7      15,427,737        21,193,068          3.2          3.9
Telephone Utilities.........................     1       5,952,151         8,100,000          1.2           --
Tobacco.....................................     3      11,406,982        13,693,750          2.1          2.2
Transportation..............................     4       9,047,957        11,444,673          1.7          2.6
Miscellaneous/Diversified...................     5      18,357,250        24,186,438          3.7          5.5
                                               ---    ------------      ------------        -----        -----
                                               126     394,764,307       557,187,067         84.3         84.7
                                               ---    ------------      ------------        -----        -----
CONVERTIBLE BONDS ..........................    20      44,611,852        49,539,661          7.5          8.1
                                               ---    ------------      ------------        -----        -----
CONVERTIBLE PREFERRED STOCKS ...............     6      15,594,496        19,974,375          3.0          5.1
                                               ---    ------------      ------------        -----        -----

NET ASSETS .................................   153    $489,233,452      $660,963,900        100.0        100.0
                                               ===    ============      ============        =====        =====
</TABLE>

                                       7
<PAGE>
 
================================================================================
SELIGMAN COMMON STOCK FUND
- --------------------------------------------------------------------------------

LARGEST PORTFOLIO CHANGES*

DURING PAST THREE MONTHS

<TABLE> 
<CAPTION> 
                                   PRINCIPAL AMOUNT
                                       OR SHARES
                                ------------------------

                                              HOLDINGS
ADDITIONS                         INCREASE    12/31/95
- ------------                     ----------- -----------
<S>                              <C>         <C>   
COMMON STOCKS
AON...........................    100,000shs.  100,000shs.
Central & South West..........    200,000      200,000
Frontier......................    150,000      150,000
General Signal................    150,000      150,000
International Paper...........    100,000      100,000
Olin..........................     40,000       40,000
Texaco........................     70,000       70,000
Unicom........................    300,000      300,000

CONVERTIBLE CORPORATE BONDS
Exide 2.90%, 12/15/2005....... $4,500,000   $4,500,000
The Pep Boys 4%, 9/1/1999.....  5,000,000    5,000,000

<CAPTION> 
                                              HOLDINGS
REDUCTIONS                        DECREASE    12/31/95
- --------------                   ----------- -----------
<S>                               <C>         <C> 
COMMON STOCKS
Abbott Laboratories...........     75,000shs.   75,000shs.
Aetna Life & Casualty.........     75,000           --
Chubb.........................     75,000           --
General Public Utilities......    200,000           --
International Business Machines    50,000           --
KeyCorp.......................    125,000           --
PacificCorp...................    200,000           --
SCE...........................    400,000           --

CONVERTIBLE PREFERRED STOCKS
Citicorp $5.375...............     25,000       25,000
Unisys $3.75..................    100,000           --
</TABLE> 

* Largest portfolio changes from previous quarter to current quarter are based
  on cost of purchases and proceeds from sales of securities.


MAJOR PORTFOLIO HOLDINGS

AT DECEMBER 31, 1995

<TABLE> 
<CAPTION> 
SECURITY                                      VALUE
- ---------                                 ------------
<S>                                        <C>   
General Electric........................   $12,600,000
Unicom..................................     9,825,000
Coca-Cola...............................     9,281,250
American International Group............     9,250,000
Royal Dutch Petroleum...................     9,173,125
Colgate-Palmolive.......................     8,781,250
PepsiCo.................................     8,381,250
Procter & Gamble........................     8,300,000
Kimberly-Clark..........................     8,275,000
Schering-Plough.........................     8,212,500
</TABLE> 


                                       8
<PAGE>
 
================================================================================
PORTFOLIO OF INVESTMENTS                                       December 31, 1995
- --------------------------------------------------------------------------------

<TABLE> 
<CAPTION> 
                                                           SHARES          VALUE
                                                           ------          -----
<S>                                                      <C>       <C>       
COMMON STOCKS   84.3%
ADVERTISING   1.1%
Omnicom Group
   Worldwide advertising agencies .................       200,000   $  7,450,000
                                                                    ------------
AEROSPACE/DEFENSE   1.8% 
General Motors (Class H)
   Diversified aerospace
   manufacturer--missiles,
   satellites, and communication
   systems ........................................       125,000      6,140,625
United Technologies
   Jet engines, elevators, flight
   systems and automotive .........................        60,000      5,692,500
                                                                    ------------
                                                                      11,833,125
                                                                    ------------
APPAREL AND TEXTILES   1.2%
Liz Claiborne
   Designer and distributor of
   women's apparel ................................       150,000      4,162,500
Unifi
   Textile processor ..............................       175,000      3,882,813
                                                                    ------------
                                                                       8,045,313
                                                                    ------------
AUTOMOTIVE AND RELATED   1.6%
Autoliv (ADRs)*+
   Swedish supplier of safety
   restraint systems ..............................        35,000      2,047,500
Echlin
   Manufacturer of brakes and
   auto replacement parts .........................        75,000      2,737,500
Genuine Parts
   Retail and wholesale
   automotive parts ...............................       100,000      4,100,000
Volkswagen                                                
   Manufacturer of automobiles ....................         5,900      1,975,566
                                                                    ------------
                                                                      10,860,566
                                                                    ------------
CHEMICALS   3.2%
Air Products and Chemicals
   Industrial gases and chemicals .................       100,000      5,275,000
Bayer AG                                                
   Producer of specialty chemicals,                     
   pharmaceuticals, and plastics ..................         7,600      2,014,674
Crompton & Knowles                                      
   Specialty chemicals and                              
   industrial machinery ...........................       200,000      2,650,000
Dow Chemical                                            
   Diversified chemicals ..........................       100,000      7,037,500
European Vinyls                                         
   Market leaders in PVC                                
   industry .......................................        45,300      1,174,758
                                                           
                                                           SHARES          VALUE
                                                           ------          -----
Olin                                                    
   Chemicals, metals, and defense                       
   products .......................................        40,000   $  2,972,500
                                                                    ------------
                                                                      21,124,432
                                                                    ------------
CONSTRUCTION   0.6%                                     
Sherwin-Williams                                        
   Paints and allied products .....................       100,000      4,062,500
                                                                    ------------
CONSUMER GOODS AND SERVICES   9.1%
Adidas AG
   Sporting equipment, footware ...................        13,646        720,060
Allied Domecq                                        
   International food, drink,                        
   and hospitality group ..........................       230,000      1,873,859
B.A.T. Industries                                    
   UK financial services and                         
   tobacco company ................................       200,000      1,761,350
Christian Dior-ABSA                                  
   Holding company for                               
   LVMH Moet Hennessy .............................        10,000      1,076,124
Coca-Cola                                            
   Soft drinks; consumer products .................       125,000      9,281,250
Colgate-Palmolive                                    
   Household and personal care                       
   products .......................................       125,000      8,781,250
Eastman Kodak                                        
   Film, chemicals, and health care                  
   products .......................................       100,000      6,700,000
Gillette                                             
   Personal care products .........................        75,000      3,909,375
International Flavors                                
   & Fragrances                                      
   Developer and manufacturer of                     
   flavor and fragrance products ..................       100,000      4,800,000
PepsiCo                                              
   Soft drinks, consumer                             
   products .......................................       150,000      8,381,250
Procter & Gamble                                     
   Household and personal care                       
   products .......................................       100,000      8,300,000
Rubbermaid                                           
   Manufacturer of plastic and                       
   rubber household products ......................       185,000      4,717,500
                                                                    ------------
                                                                      60,302,018
                                                                    ------------
DRUGS AND HEALTH CARE   5.7%
Abbott Laboratories
   Diversified health care
   products .......................................        75,000      3,131,250
American Home Products                                
   Pharmaceuticals, food, and                         
   housewares .....................................        40,000      3,880,000
Bard (C.R.)                                           
   Hospital and surgical                              
   specialities ...................................       150,000      4,837,500
</TABLE> 
                                                   

                                       9
<PAGE>
 
================================================================================
PORTFOLIO OF INVESTMENTS (continued)
- --------------------------------------------------------------------------------

<TABLE> 
<CAPTION> 
                                                           SHARES          VALUE
                                                           ------          -----
<S>                                                       <C>        <C> 
DRUGS AND HEALTH CARE (continued)
Bausch & Lomb
   Sunglasses, eye care products ..................       185,000    $ 7,330,625
Bristol-Myers Squibb                                  
   Health and personal care                           
   products .......................................        75,000      6,440,625
Mallinckrodt Group                                    
   Health care products and                           
   specialty chemicals ............................       100,000      3,637,500
Schering-Plough                                       
   Pharmaceuticals, health and                        
   personal care products .........................       150,000      8,212,500
                                                                    ------------
                                                                      37,470,000
                                                                    ------------
ELECTRIC AND GAS UTILITIES   6.3%
British Gas (ADRs)
   Major gas supplier in the UK ...................        30,000      1,170,000
Central & South West
   Electric utility ...............................       200,000      5,575,000
Empresa Nacional de Electricdad
   (ADRs)
   Spanish electric utility .......................        50,000      2,862,500
FPL Group
   Electric power .................................       160,000      7,420,000
Hong Kong Electric
   Regional natural gas producer
   and distributor ................................     1,800,000      5,901,067
Huaneng Power International
   (ADRs)*
   Flagship power company of China ................        60,000        862,500
Southern Company
   Electric power .................................       150,000      3,693,750
Unicom
   Electric utility ...............................       300,000      9,825,000
Williams Cos ......................................
   Oil and gas, production and
   pipeline .......................................       100,000      4,387,500
                                                                    ------------
                                                                      41,697,317
                                                                    ------------
ELECTRONICS   0.9%
Motorola
   Semiconductors and
   communications equipment .......................       100,000      5,700,000
                                                                    ------------
ENERGY   7.5%                                         
Anadarko Petroleum                                    
   Oil and gas exploration,                           
   development, and production ....................        82,000      4,438,250
Atlantic Richfield                                    
   Integrated oil enterprise ......................        50,000      5,537,500
Enron                                                 
   Pipeline exploration and                           
   production .....................................       150,000      5,718,750
Mobil                                                 
   International oil enterprise ...................        50,000      5,600,000
Panhandle Eastern                                     
   Oil and gas, production and                        
   pipelines ......................................       200,000      5,575,000

                                                           SHARES          VALUE
                                                           ------          -----
Royal Dutch Petroleum                                 
   International oil services .....................        65,000    $ 9,173,125
Schlumberger                                          
   Worldwide energy enterprise ....................       100,000      6,925,000
Texaco                                             
   International oil company ......................        70,000      5,495,000
Total SA (Class B)                                     
   International oil enterprise ...................        15,000      1,010,394
                                                                    ------------
                                                                      49,473,019
                                                                    ------------
FINANCE AND INSURANCE  11.6%
Ahmanson (H.F.)
   Owner of the largest savings
   institution in the US ..........................       150,000      3,975,000
American International Group                         
   International insurance holding                   
   company ........................................       100,000      9,250,000
AON                                                  
   Accident, health, and life                        
   insurance ......................................       100,000      4,987,500
Banco de Santander (ADSs)                            
   Retail banking, financial, and                    
   financial investment services ..................        50,000      2,501,951
Bank of New York                                     
   Commercial bank ................................       150,000      7,312,500
Bankers Trust                                        
   Commercial bank ................................       100,000      6,643,750
Federal National Mortgage                            
   Association                                       
   Mortgage financing .............................        50,000      6,206,250
General Re                                           
   Reinsurance company ............................        50,000      7,750,000
Great Western Financial                              
   Savings and loan in California                    
   and Florida ....................................       150,000      3,825,000
Grupo Financiero Banamex                             
   Accival (Class B)                                 
   Insurance and banking group ....................       551,000        918,214
Household International                              
   Consumer loans, credit cards,                     
   equity loans, and life insurance ...............        50,000      2,953,125
Internationale Nederlanden Bank                      
   Dutch finance company ..........................        38,950      2,596,667
MBNA                                                 
   Issuer of bank credit cards ....................       100,000      3,687,500
Morgan (J. P.)                                       
   Commercial and wholesale                          
   banking based in New York ......................        90,000      7,222,500
National Australia Bank (ADRs)                       
   Commercial bank ................................        50,000      2,262,500
St. Paul Companies                                   
   Property and casualty insurance ................        60,000      3,337,500
Societe Generale                                     
   Provider of full banking and                      
   financial services .............................         9,040      1,114,685
                                                                    ------------
                                                                      76,544,642
                                                                    ------------
</TABLE> 
                                                   
                                       10
<PAGE>
 
================================================================================
                                                               December 31, 1995
- --------------------------------------------------------------------------------

<TABLE> 
<CAPTION> 
                                                           SHARES          VALUE
                                                           ------          -----
<S>                                                       <C>        <C> 
FOOD   5.0%
Campbell Soup
   Canned soup and other food
   products .......................................       100,000    $ 6,000,000
ConAgra                                               
   Prepared foods and agricultural                    
   products .......................................       150,000      6,187,500
CPC International                                     
   International food processor ...................       100,000      6,862,500
General Mills                                         
   Consumer foods and                                 
   restaurants ....................................       100,000      5,775,000
Sara Lee                                              
   Processed foods, consumer                          
   products .......................................       250,000      7,968,750
                                                                    ------------
                                                                      32,793,750
                                                                    ------------
INDUSTRIAL EQUIPMENT   3.3%
BTR
   Global company that
   manufactures a broad range
   of industrial goods ............................       320,000      1,633,788
Emerson Electric                                     
   Electric motors, hand-held tools,                 
   and miscellaneous electric                        
   equipment ......................................        50,000      4,084,375
General Electric                                     
   Electrical equipment ...........................       175,000     12,600,000
Mannesmann                                           
   Plant and machinery construction,                 
   trading, automotive technology .................         4,000      1,271,145
Pacific Dunlop                                       
   Diversified manufacturing                         
   company ........................................     1,100,000      2,573,628
                                                                    ------------
                                                                      22,162,936
                                                                    ------------
LEISURE/ENTERTAINMENT   0.1%
Mandarin Oriental
   Owner and operator of major
   hotels throughout Asia .........................       300,000        363,000
                                                                    ------------
OFFICE EQUIPMENT   1.1%
Pitney Bowes
   Postage meters, office
   equipment ......................................       150,000      7,050,000
                                                                    ------------
PAPER AND PACKAGING   2.4%                            
Bowater                                               
   Newsprint and coated-paper                         
   manufacturer ...................................        75,000      2,662,500
International Paper                                   
   Paper and paper products,                          
   specialty products, wood and                       
   timber .........................................       100,000      3,781,250
Kimberly-Clark                                        
   Consumer paper products,                           
   newsprint ......................................       100,000      8,275,000

                                                           SHARES          VALUE
                                                           ------          -----
Stora Kopparbergs (Class B)                           
   Manufacturer of forestry                           
   products .......................................        80,000    $   958,012
                                                                    ------------
                                                                      15,676,762
                                                                    ------------
PRINTING AND PUBLISHING   2.8%
Donnelley (R.R.)
   Printer and computer services ..................       100,000      3,937,500
Knight-Ridder Newspapers                             
   Newspapers, business                              
   information services ...........................       100,000      6,250,000
Reader's Digest (Class A)                            
   Publisher of periodicals, books,                  
   videos, and records ............................        70,000      3,587,500
Reed Elsevier                                        
   Global printer and publisher                      
   of professional trade journals                    
   and magazines ..................................       130,000      1,730,100
Tribune                                              
   Book publishing, newsprint                        
   operations .....................................        50,000      3,056,250
                                                                    ------------
                                                                      18,561,350
                                                                    ------------
RESTAURANT   0.6%
Wendy's International
   Fast food restaurant ...........................       200,000      4,250,000
                                                                    ------------
RETAIL TRADE   5.3%
American Stores
   Food retailer ..................................       200,000      5,350,000
Dillard Department Stores                            
   Major department store chain ...................       100,000      2,850,000
Kmart                                                
   Discount department stores .....................       300,000      2,175,000
Limited                                              
   Women's apparel stores .........................       150,000      2,606,250
May Department Stores                                
   Large department store chain ...................       155,000      6,548,750
Nordstrom                                            
   Department stores ..............................       125,000      5,046,875
Sears, Roebuck                                       
   Large retail store .............................       100,000      3,900,000
Wal-Mart                                             
   Discount retail chain ..........................       200,000      4,475,000
Woolworth                                            
   Discount and variety retailer ..................       175,000      2,275,000
                                                                    ------------
                                                                      35,226,875
                                                                    ------------
STEEL   0.6%
Nucor
   Mini-mill steel production .....................        60,000      3,427,500
Pohang Iron & Steel (ADRs)                             
   A leading Korean steel                              
   manufacturer ...................................        30,000        656,250
                                                                    ------------
                                                                       4,083,750
                                                                    ------------
</TABLE> 
                                       11
<PAGE>
 
================================================================================
PORTFOLIO OF INVESTMENTS (continued)
- --------------------------------------------------------------------------------

<TABLE> 
<CAPTION> 
                                                           SHARES          VALUE
                                                           ------          -----
<S>                                                       <C>         <C> 
TECHNOLOGY   0.6%
Cray Research
   Scientific computer software ...................       100,000     $2,475,000
Olivetti                                             
   PCs, minicomputers,                               
   workstations, and peripherals ..................       119,500      1,362,783
                                                                    ------------
                                                                       3,837,783
                                                                    ------------
TELECOMMUNICATIONS   3.2%                            
Alcatel Alsthom                                      
   Communication systems,                            
   energy, transportation .........................        17,000      1,462,835
ALLTEL                                               
   Telecommunications/data                           
   processing services ............................       250,000      7,375,000
American Telephone                                   
   & Telegraph                                       
   International and domestic                        
   telecommunications services ....................        75,000      4,856,250
Frontier                                             
   Telephone utility ..............................       150,000      4,471,875
Indosat (ADRs)                                       
   International telecommunications                  
   to the Indonesian market .......................        13,100        478,150
Tele Danmark (ADSs)                                  
   Domestic international                            
   phone service ..................................        70,000      1,933,750
Telecom Italia-Di Risp                               
   Telecommunications services                       
   in Italy .......................................       585,000        615,208
                                                                    ------------
                                                                      21,193,068
                                                                    ------------
TELEPHONE UTILITIES   1.2%                         
NYNEX
   Telephone utility and
   publishing .....................................       150,000      8,100,000
                                                                    ------------
TOBACCO   2.1%
Philip Morris
   Tobacco, food, and beverage
   manufacturer ...................................        75,000      6,787,500
Schweitzer-Mauduit International                     
   Manufacturer of tobacco                           
   products .......................................        10,000        231,250
UST Inc.                                             
   Tobacco and beverages ..........................       200,000      6,675,000
                                                                    ------------
                                                                      13,693,750
                                                                    ------------
TRANSPORTATION   1.7%                                
British Airways (ADRs)                               
   International airline ..........................        21,000      1,504,125
Caliber System                                       
   Logistics and trucking .........................       108,400      5,284,500

                                                        SHARES OR
                                                        PRIN.AMT.          VALUE
                                                        ---------          -----
Conrail                                            
   Major freight railroad services ................        50,000shs.$ 3,500,000
Jurong Shipyard
   A leading ship repair company
   in Singapore ...................................       150,000      1,156,048
                                                                    ------------
                                                                      11,444,673
                                                                    ------------
MISCELLANEOUS/DIVERSIFIED   3.7%
Corning (Delaware)
   Specialty glass products .......................       200,000      6,400,000
Dover                                                
   Elevators; petroleum equipment,                   
   industrial products ............................       100,000      3,687,500
General Signal                                       
   Control instruments ............................       150,000      4,856,250
Minnesota Mining                                     
   & Manufacturing                                   
   Consumer and industrial goods                     
   and services ...................................        50,000      3,312,500
Tenneco                                              
   Natural gas pipelines;                            
   shipbuilding; auto parts;                         
   chemicals; plastic packaging ...................       119,500      5,930,188
                                                                    ------------
                                                                      24,186,438
                                                                    ------------
TOTAL COMMON STOCKS
   (Cost $394,764,307)                                               557,187,067
                                                                    ------------
CONVERTIBLE BONDS   7.5%
AUTOMOTIVE   0.5%
Exide 2%, 12/15/2005 ..............................    $4,500,000     $3,251,250
                                                                    ------------
BIOTECHNOLOGY   0.4%                                 
Genzyme                                              
   6 3/4%, 10/1/2001+ .............................     2,000,000      2,485,000
                                                                    ------------
INSURANCE   0.7%                                     
AXA 6%, 1/1/2001 ..................................     4,497,500++    1,204,237
Horace Mann
   4%, 12/1/1999 ..................................     2,000,000      2,075,000
Liberty Life International                           
   6 1/2%, 9/30/2004 ..............................     1,000,000      1,315,000
                                                                    ------------
                                                                       4,594,237
                                                                    ------------
LEISURE AND RELATED   0.3%                           
Bell Sports                                          
   4 1/4%, 11/15/2000 .............................     2,500,000      1,750,000
                                                                    ------------
RETAIL TRADE   1.3%                                  
Big B 6 1/2%, 3/15/2003 ...........................     2,000,000      1,995,000
Price 6 3/4%, 3/1/2001 ............................     2,000,000      2,032,500
The Pep Boys 4%, 9/1/2001 .........................     5,000,000      4,831,250
                                                                    ------------
                                                                       8,858,750
                                                                    ------------
</TABLE> 
                                       12
<PAGE>
 
================================================================================
                                                               December 31, 1995
- --------------------------------------------------------------------------------

<TABLE> 
<CAPTION> 
                                                        SHARES OR
                                                        PRIN.AMT.          VALUE
                                                        ---------          -----
<S>                                                  <C>             <C> 
TECHNOLOGY   1.8%
Bay Networks
   5 1/4%, 5/15/2003+ .............................   $ 3,500,000    $ 3,758,125
Conner Peripherals
   6 1/2%, 3/1/2002 ...............................     2,000,000      2,050,000
Data General                                            
   7 3/4%, 6/1/2001 ...............................     3,000,000      2,970,000
EMC 4 1/4%, 1/1/2001 ..............................     3,000,000      2,985,000
                                                                    ------------
                                                                      11,763,125
                                                                    ------------
TRANSPORTATION   0.2%
Nippon Yusen
   2%, 9/29/2000...................................   140,000,000**    1,596,135
                                                                    ------------
MISCELLANEOUS/DIVERSIFIED  2.3%
Land and General Berhad
   4 1/2%, 7/26/2004 ..............................    $1,000,000      1,132,500
MascoTech
   4 1/2%, 12/15/2003 .............................     3,000,000      2,347,500
Teco Electric & Machinery
   2 3/4%, 4/15/2004 ..............................     1,500,000      1,175,625
Thermo Electron
   5%, 4/15/2001+ .................................     3,000,000      4,935,000
TNT Pacific Finance
   9%, 7/27/1998 ..................................     5,000,000+++   3,690,539
TriMas 5%, 8/1/2003 ...............................     2,000,000      1,960,000
                                                                    ------------
                                                                      15,241,164
                                                                    ------------
TOTAL CONVERTIBLE BONDS
   (Cost $44,611,852) .............................                   49,539,661
                                                                    ------------
CONVERTIBLE PREFERRED STOCKS   3.0%
FINANCE AND INSURANCE   1.5%
Alexander & Alexander
   (Series A) $3.625+ .............................       100,000 shs. 4,987,500
Citicorp $5.375+ ..................................        25,000      4,578,125
                                                                    ------------
                                                                       9,565,625
                                                                    ------------

                                                           SHARES          VALUE
                                                           ------          -----
PAPER   0.2%
International Paper $4.00 .........................        40,000   $  1,815,000
                                                                    ------------
TELECOMMUNICATIONS   0.4%
Mobile Telecommunications
   Technology $2.25+ ..............................        75,000      2,381,250
                                                                    ------------
TRANSPORTATION   0.9%
GATX $3.875 .......................................        70,000      4,025,000
Sea Containers $4.00 ..............................        50,000      2,187,500
                                                                    ------------
                                                                       6,212,500
                                                                    ------------
TOTAL CONVERTIBLE PREFERRED STOCKS
  (Cost $15,594,496) ..............................                   19,974,375
                                                                    ------------
SHORT-TERM HOLDINGS   4.5%
  (Cost $29,570,000) ..............................                   29,570,000
                                                                    ------------
TOTAL INVESTMENTS   99.3%
  (Cost $484,540,655) .............................                  656,271,103
OTHER ASSETS LESS
   LIABILITIES   0.7%  ............................                    4,692,797
                                                                    ------------
NET ASSETS   100.0%  ..............................                 $660,963,900
                                                                    ============
</TABLE> 

- ------------------
  *Non-income producing security.
  +Rule 144A security.
** Principal amount reported in Japanese yen.
++ Principal amount reported in Australian dollars.
+++Principal amount reported in French francs.
Descriptions of companies have not been audited by
  Deloitte & Touche LLP.
See notes to financial statements.

                                       13
<PAGE>
 
================================================================================
STATEMENT OF ASSETS AND LIABILITIES                            December 31, 1995
- --------------------------------------------------------------------------------
<TABLE>
<CAPTION>
ASSETS:
<S>                                                                                <C>                <C>          
Investments, at value:
  Common stocks and convertible securities (cost $454,970,655).............        $626,701,103

  Short-term holdings (cost $29,570,000)...................................          29,570,000       $ 656,271,103
                                                                                   ------------
Cash.......................................................................                               1,778,284
Receivable for dividends and interest......................................                               2,465,350
Receivable for securities sold.............................................                               1,617,116
Receivable for Capital Stock sold..........................................                               1,330,278
Investment in, and expenses prepaid to, shareholder service agent..........                                  78,682
Other......................................................................                                 100,142
                                                                                                      -------------
Total Assets ..............................................................                             663,640,955
                                                                                                      -------------
LIABILITIES:
Payable for Capital Stock repurchased......................................                               1,418,419
Payable for securities purchased...........................................                                 366,250
Accrued expenses, taxes, and other.........................................                                 892,386
                                                                                                      -------------
Total Liabilities .........................................................                               2,677,055
                                                                                                      -------------
Net Assets  ...............................................................                           $ 660,963,900
                                                                                                      =============

COMPOSITION OF NET ASSETS:
Capital Stock, at par ($0.50 par value; 60,000,000 shares authorized; 46,595,866
   shares outstanding):
  Class A..................................................................                           $  21,653,271
  Class D..................................................................                               1,644,662
Additional paid-in capital.................................................                             451,923,970
Undistributed net investment income........................................                                 537,697
Undistributed net realized gain............................................                              13,474,004
Net unrealized appreciation of investments.................................                             170,690,100
Net unrealized appreciation on translation of assets and liabilities
   denominated in foreign currencies ......................................                               1,040,196
                                                                                                      -------------
Net Assets ................................................................                           $ 660,963,900
                                                                                                      =============

NET ASSET VALUE PER SHARE:
Class A ($614,399,762 / 43,306,541 shares) ................................                                  $14.19
                                                                                                             ======
Class D ($46,564,138 / 3,289,325 shares) ..................................                                  $14.16
                                                                                                             ======
</TABLE>

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

See notes to financial statements.

                                       14
<PAGE>
 
================================================================================
STATEMENT OF OPERATIONS                     For the Year Ended December 31, 1995
- --------------------------------------------------------------------------------
<TABLE>
<CAPTION>
INVESTMENT INCOME:
<S>                                                                               <C>               <C>
Dividends..................................................................       $  17,815,692
Interest...................................................................           3,258,459
Other income...............................................................              26,930
                                                                                  -------------
Total investment income (net of foreign taxes withheld of $206,101)........                         $    21,101,081
EXPENSES:
Management fee.............................................................           2,898,605
Distribution and service fees..............................................           1,642,682
Shareholder account services...............................................             910,778
Shareholder reports and communications.....................................              96,249
Auditing and legal fees....................................................              93,929
Registration...............................................................              79,094
Directors' fees and expenses...............................................              48,301
Shareholders' meeting......................................................              17,700
Miscellaneous..............................................................              49,037
                                                                                  -------------
Total expenses.............................................................                               5,836,375
                                                                                                    ---------------
Net investment income  ....................................................                              15,264,706
NET REALIZED AND UNREALIZED GAIN ON INVESTMENTS
   AND FOREIGN CURRENCY TRANSACTIONS:
Net realized gain on investments...........................................          55,017,101
Net realized gain from foreign currency transactions.......................             225,127
Net change in unrealized appreciation of investments.......................          76,349,692
Net change in unrealized appreciation on translation of assets
   and liabilities denominated in foreign currencies.......................             351,103
                                                                                  -------------
Net gain on investments and foreign currency transactions .................                             131,943,023
                                                                                                    --------------- 
Increase in net assets from operations ....................................                         $   147,207,729
                                                                                                    =============== 
</TABLE>

- ---------------------------
See notes to financial statements.


                                       15
<PAGE>
 
================================================================================
STATEMENTS OF CHANGES IN NET ASSETS
- --------------------------------------------------------------------------------
<TABLE>
<CAPTION>
                                                                                        YEAR ENDED DECEMBER 31
                                                                                        ---------------------- 
                                                                                        1995               1994
                                                                                    ------------       ------------          
OPERATIONS:
<S>                                                                                 <C>                <C>         
Net investment income........................................................       $ 15,264,706       $ 15,851,864
Net realized gain on investments.............................................         55,017,101         30,111,954
Net realized gain (loss) from foreign currency transactions..................            225,127           (289,137)
Net change in unrealized appreciation of investments.........................         76,349,692        (57,135,423)
Net change in unrealized appreciation on translation of assets and liabilities
   denominated in foreign currencies.........................................            351,103            689,093
                                                                                    ------------       ------------          
Increase (decrease) in net assets from operations............................        147,207,729        (10,771,649)
                                                                                    ------------       ------------          
DISTRIBUTIONS TO SHAREHOLDERS:
Net investment income:
  Class A....................................................................        (14,964,866)       (15,015,753)
  Class D....................................................................           (491,306)          (210,878)
Net realized gain on investments:
  Class A....................................................................        (38,904,062)       (29,036,367)
  Class D....................................................................         (2,848,693)          (800,763)
                                                                                    ------------       ------------          
Decrease in net assets from distributions....................................        (57,208,927)       (45,063,761)
                                                                                    ------------       ------------          
</TABLE>

<TABLE>
<CAPTION>
                                                          SHARES
                                             --------------------------------
                                                  YEAR ENDED DECEMBER 31
                                             --------------------------------
CAPITAL SHARE TRANSACTIONS:                      1995                1994
                                             ------------        -------------
Net proceeds from sale of shares:
<S>                                           <C>                  <C>               <C>                <C>         
  Class A................................      2,595,379            1,534,694         35,934,717         20,075,350
  Class D................................      1,887,144              727,532         26,182,816          9,554,389
Investment of dividends:
  Class A................................        540,438              571,816          7,493,573          7,311,515
  Class D................................         29,748               15,530            415,449            195,397
Exchanged from associated Funds:
  Class A................................      2,312,459              626,214         33,357,990          8,186,930
  Class D................................        629,898               84,883          9,013,077          1,096,450
Shares issued in payment of gain distributions:
  Class A................................      1,917,613            1,662,319         26,922,726         19,980,400
  Class D................................        192,465               64,100          2,696,370            768,411
                                              ----------           ----------        -----------        -----------
Total....................................     10,105,144            5,287,088        142,016,718         67,168,842
                                              ----------           ----------        -----------        -----------
Cost of shares repurchased:
  Class A................................     (3,546,666)          (2,685,463)       (49,307,504)       (35,123,441)
  Class D................................       (213,657)             (68,351)        (2,986,437)          (883,908)
Exchanged into associated Funds:
  Class A................................     (2,672,563)            (622,475)       (37,994,566)        (8,190,671)
  Class D................................       (430,578)             (50,488)        (6,135,330)          (652,278)
                                              -----------          ------------      ------------       ------------

Total....................................     (6,863,464)          (3,426,777)       (96,423,837)       (44,850,298)
                                              ----------          -----------       ------------       ------------
Increase in net assets from capital
   share transactions ...................      3,241,680            1,860,311         45,592,881         22,318,544
                                              ----------           ----------       ------------       ------------
 
                                                                                     
Increase (decrease) in net assets............................................        135,591,683        (33,516,866)
NET ASSETS:
Beginning of year............................................................        525,372,217        558,889,083
                                                                                    ------------        -----------
End of year (including undistributed net investment income of

   $537,697 and $740,106, respectively)......................................       $660,963,900      $525,372,217         
                                                                                    ============      ============
</TABLE>
- ---------------------------

See notes to financial statements.

                                       16
<PAGE>
 
================================================================================
NOTES TO FINANCIAL STATEMENTS
- --------------------------------------------------------------------------------
1. Seligman Common Stock Fund, Inc. (the "Fund") offers two classes of shares.
All shares existing prior to May 3, 1993, were classified as Class A shares.
Class A shares are sold with an initial sales charge of up to 4.75% and a
continuing service fee of up to 0.25% on an annual basis. Class 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 contingent
deferred sales load ("CDSL") of 1% imposed on certain redemptions made within
one year of purchase. The two 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
class expenses and has exclusive voting rights with respect to any matter to
which a separate vote of any class is required. 2. Significant accounting
policies followed, all in conformity with generally accepted accounting
principles, are given below:

          a. Investments in convertible securities and common stocks are valued
     at current market values or, in their absence, at fair value 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, a mean of bid and
     asked prices. Short-term holdings maturing in 60 days or less are valued at
     amortized cost.

          b. The books and records of the Fund are maintained in U.S. dollars.
     The market value of investment securities and other assets and liabilities
     denominated in foreign currencies are translated into U.S. dollars at the
     closing daily rate of exchange as reported by a pricing service. Purchases
     and sales of investment securities, income, and expenses are translated
     into U.S. dollars at the rate of exchange prevailing on the respective
     dates of such transactions. The Fund separates that portion of the results
     of operations resulting from changes in the foreign exchange rates from the
     fluctuations arising from changes in the market prices of securities held
     in the portfolio. Similarly, the Fund separates the effect of changes in
     foreign exchange rates from the fluctuations arising from changes in the
     market prices of portfolio securities sold during the period.

          c. There is no provision for federal income or excise 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. 

          d. 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.

          e. 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 attributed to a particular class, are
     charged directly to such class.

          f. The treatment for financial statement purposes of distributions
     made during the year from net investment income or net realized gain 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 capital gain, and
     the recharacterization of foreign exchange gains or losses to either
     ordinary income 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 portfolio securities, excluding short-term
investments, for the year ended December 31, 1995, amounted to $267,509,167 and
$286,886,421, respectively.

     At December 31, 1995, 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, including the effects of foreign currency translations,
amounted to $183,685,407 and $11,954,959, respectively.

4. At December 31, 1995, the Fund owned short-term  investments which matured in
less than 7 days.

5. J. & W. Seligman & Co.  Incorporated  (the "Manager")  manages the affairs of
the Fund and provides the necessary  personnel and  facilities.  Compensation of

                                       17
<PAGE>
 
================================================================================
NOTES TO FINANCIAL STATEMENTS (continued)
- --------------------------------------------------------------------------------
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 a per annum percentage of the Fund's daily net assets. The
management fee rate is calculated on a sliding scale of 0.50% to 0.44%, based on
average daily net assets of all the investment companies managed by the Manager.
The management fee for the year ended December 31, 1995, was equivalent to an
annual rate of 0.48% of the average daily net assets of the Fund. Seligman
Henderson Co. (the "Subadviser"), a 50% owned affiliate of the Manager, is
entitled to a portion of the Manager's fee for acting as Subadviser for certain
of the international investments of the Fund.

    Effective January 1, 1996, the management fee rate is 0.65% of the first $1
billion of the Fund's average daily net assets, 0.60% of the next $1 billion of
average daily net assets and 0.55% of average daily net assets in excess of $2
billion.
    
     Seligman Financial Services, Inc. (the "Distributor"), agent for the
distribution of Fund shares and an affiliate of the Manager, received
concessions of $83,458 from sales of Class A shares, after commissions of
$1,076,487 paid to dealers.

    The Fund has an Administration, Shareholder Services and Distribution Plan
(the "Plan") with respect to Class A shares under which 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, 1995, fees incurred aggregated
$1,357,375, or 0.24% per annum of the average daily net assets of Class A
shares.

    The Fund has a Plan with respect to Class D shares under which 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 D shares for which the organizations are responsible, and
fees for providing other distribution assistance of up to 0.75% on an annual
basis of such average daily net assets. Such fees are paid monthly by the Fund
to the Distributor pursuant to the Plan. For the year ended December 31, 1995,
fees paid amounted to $285,307, or 1% per annum of the average daily net assets
of Class D shares.

    The Distributor is entitled to retain any CDSL imposed on certain
redemptions occurring within one year of purchase. For the year ended December
31, 1995, such charges amounted to $8,440.

    Effective April 1, 1995, Seligman Services, Inc., an affiliate of the
Manager, became 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
period ended December 31, 1995, Seligman Services, Inc. received commissions of
$26,338 from sales of shares of the Fund. Seligman Services, Inc. also received
distribution and service fees of $315,230, pursuant to the Plan.

    Seligman Data Corp., owned by the Fund and certain associated investment
companies, charged the Fund at cost $910,622 for shareholder account services.
The Fund's investment in Seligman Data Corp. is recorded at a cost of $22,506.

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

    Fees of $31,000 were incurred by the Fund for legal services of Sullivan &
Cromwell, a member of which firm is a director of the Fund.

    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, 1995, of
$162,065 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. 6. Class-specific expenses charged to Class A and Class D during the
year ended December 31, 1995, which are included in the corresponding captions
of the Statement of Operations, were as follows:

<TABLE> 
<CAPTION> 
                                      CLASS A    CLASS D
                                    ----------  --------
<S>                                 <C>         <C> 
Distribution and service fees.....  $1,357,375  $285,307
Registration......................      18,048     9,281
Shareholder reports and
   communications.................      15,190       708
</TABLE> 

                                      18
<PAGE>
 
================================================================================
FINANCIAL HIGHLIGHTS
- --------------------------------------------------------------------------------

The Fund's financial highlights are presented below. The per share operating
performance data is designed to allow investors to trace the operating
performance, on a per share basis, from the Fund's 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 amounts.

    The total return based on net asset value measures the Fund's performance
assuming investors purchased Fund shares at net asset value as of the beginning
of the period, reinvested 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 charges
investors may incur in purchasing or selling shares of the Fund. The total
returns for periods of less than one year are not annualized.

<TABLE>
<CAPTION>

                                                                 CLASS A                            CLASS D
                                              ---------------------------------------------  -----------------------   
                                                                                               YEAR ENDED    5/3/93*
                                                         YEAR ENDED DECEMBER 31                DECEMBER 31      TO
                                              ---------------------------------------------  --------------
                                               1995o    1994o     1993      1992     1991     1995o   1994o 12/31/93
                                              ------   ------    ------    ------   ------   ------  ------  -------
PER SHARE OPERATING
   PERFORMANCE:
<S>                                          <C>       <C>      <C>       <C>      <C>      <C>     <C>      <C>   
Net asset value, beginning
   of period.............................    $12.12    $13.47   $12.79    $12.54   $10.60   $12.07  $13.46   $13.29
                                             ------    ------   ------    ------   ------   ------  ------   ------ 
Net investment income....................       .36       .38      .39       .39      .40      .24     .22      .18
Net realized and unrealized
   investment gain (loss) ...............      3.00      (.64)    1.49       .95     2.72     3.00    (.66)    1.02
Net realized and unrealized gain
   on foreign currency transactions......       .01        --       --        --       --      .01      --       --
                                             ------    ------   ------    ------   ------   ------  ------   ------ 
Increase (decrease) from
   investment operations.................      3.37      (.26)    1.88      1.34     3.12     3.25    (.44)    1.20
Dividends paid...........................      (.36)     (.37)    (.38)     (.39)    (.40)    (.22)   (.23)    (.21)
Distributions from net gain
   realized..............................      (.94)     (.72)    (.82)     (.70)    (.78)    (.94)   (.72)    (.82)
                                             ------    ------   ------    ------   ------   ------  ------   ------ 
Net increase (decrease) in net
   asset value...........................      2.07     (1.35)     .68       .25     1.94     2.09   (1.39)     .17
                                             ------    ------   ------    ------   ------   ------  ------   ------ 
Net asset value, end of period...........    $14.19    $12.12   $13.47    $12.79   $12.54   $14.16  $12.07   $13.46
                                             ======    ======   ======    ======   ======   ======  ======   ====== 

TOTAL RETURN BASED
   ON NET ASSET VALUE ...................     28.17%    (1.89)%  14.86%    10.86%   29.93%   27.17%  (3.24)%   9.09%
RATIOS/SUPPLEMENTAL DATA:
Expenses to average net assets...........       .93%      .85%     .87%      .75%     .72%    1.72%   1.96%    2.02%+
Net investment income to
   average net assets....................      2.56%     2.93%    2.86%     3.00%    3.24%    1.80%   1.68%    1.83%+
Portfolio turnover.......................     46.08%    57.17%   54.37%    46.78%   47.60%   46.08%  57.17%   54.37%++
Net assets, end of period
   (000's omitted).......................   $614,400  $510,956  $553,222 $514,069 $494,858   $46,564$14,416  $5,667
</TABLE>

- --------------------
 *Commencement of offering of Class D shares.
 oPer share amounts for the years ended December 31, 1995 and 1994, are 
  calculated based on average shares outstanding.
 +Annualized.
++For the year ended December 31, 1993.
See notes to financial statements.

                                       19
<PAGE>
 
================================================================================
REPORT OF INDEPENDENT AUDITORS
- --------------------------------------------------------------------------------
THE BOARD OF DIRECTORS AND SHAREHOLDERS,
SELIGMAN COMMON STOCK FUND, INC.:


We have audited the accompanying statement of assets and liabilities, including
the portfolio of investments, of Seligman Common Stock Fund, Inc. as of December
31, 1995, 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, 1995 by correspondence with the Fund's custodians 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 Common
Stock Fund, Inc. as of December 31, 1995, the results of its operations, the
changes in its net assets and the financial highlights for the respective stated
periods, in conformity with generally accepted accounting principles.

/s/DELOITTE & TOUCHE LLP
New York, New York
February 2, 1996

                                       20
<PAGE>
 
================================================================================
SELIGMAN COMMON STOCK FUND
- --------------------------------------------------------------------------------
PROXY RESULTS
Seligman Common Stock Fund Shareholders voted on the following proposals at the
Special Meeting of Shareholders held on December 12, 1995, in New York, New
York. Each Director was elected, and all other proposals were approved. The
description of each proposal and number of shares voted are as follows:

<TABLE> 
<CAPTION> 
                                 FOR            AGAINST       NON-VOTE
                                 ---            -------       --------
<S>                          <C>              <C>             <C> 
Election of Directors:
   Fred E. Brown             28,157,098       1,034,406       14,971,714
   John R. Galvin            28,089,418       1,100,772       14,971,727
   Alice S. Ilchman          28,194,188         997,495       14,971,707
   Frank A. McPherson        28,078,655       1,105,623       14,971,727
   John E. Merow             28,216,081         977,206       14,971,704
   Betsy S. Michel           28,223,844         967,775       14,971,701
   William C. Morris         28,195,810         997,478       14,971,702
   James C. Pitney           28,065,410       1,127,877       14,971,703
   James Q. Riordan          28,150,338       1,034,742       14,971,712
   Ronald T. Schroeder       28,214,374         978,917       14,971,700
   Robert L. Shafer          28,209,518         983,601       14,971,699
   James N. Whitson          28,212,565         979,056       14,971,699
   Brian T. Zino             28,212,981         978,709       14,971,700
</TABLE> 

<TABLE>
<CAPTION>
                                                                 FOR          AGAINST        ABSTAIN       NON-VOTE
                                                               -----       ----------     ----------   ------------
<S>                                                           <C>          <C>            <C>          <C>       
Ratification of Deloitte & Touche LLP as independent auditors:27,869,116       275,803      1,048,373     14,971,698
Approval of amendment to the Management Agreement to
   increase management fee payable by the Fund:               20,614,579     6,894,426      1,684,288     14,971,698
Approval of amendment to the Subadvisory Agreement to
   increase the subadvisory fee payable by J. & W. Seligman
   & Co. Incorporated:                                        20,754,669     6,652,279      1,786,345     14,971,697
Approval of amendment of Fund's fundamental investment
   policy to increase the amount that may be borrowed to 15%
   of the market value of the Fund's total assets:            23,212,314     4,400,446      1,580,531     14,971,699
Approval of amendment of Fund's fundamental investment
   policy to permit mortgaging or pledging of its assets:     22,990,944     4,394,990      1,811,358     14,987,698
Approval of amendment of Fund's fundamental investment
   policy with respect to investment in real estate investment
   trusts:                                                    24,513,910     3,123,350      1,556,033     14,971,698
</TABLE>

                                      21
<PAGE>
 
================================================================================
BOARD OF DIRECTORS
- --------------------------------------------------------------------------------


FRED E. BROWN
DIRECTOR AND CONSULTANT,
  J. & W. Seligman & Co. Incorporated

JOHN R. GALVIN 2, 4
DEAN, Fletcher School of Law and
  Diplomacy at Tufts University
DIRECTOR, USLIFE Corporation

ALICE S. ILCHMAN 3, 4
PRESIDENT, Sarah Lawrence College
TRUSTEE, Committee for Economic Development
DIRECTOR, NYNEX
CHAIRMAN, The Rockefeller Foundation

FRANK A. MCPHERSON 2, 4
CHAIRMAN AND CEO, Kerr-McGee Corporation
DIRECTOR, Kimberly-Clark Corporation
DIRECTOR, Baptist Medical Center

JOHN E. MEROW
PARTNER, Sullivan & Cromwell, Law Firm
DIRECTOR, Commonwealth Aluminum Corporation

BETSY S. MICHEL 2, 4
DIRECTOR OR TRUSTEE,
  Various Organizations

WILLIAM C. MORRIS 1
CHAIRMAN
CHAIRMAN OF THE BOARD AND PRESIDENT,
  J. & W. Seligman & Co. Incorporated
CHAIRMAN, Carbo Ceramics Inc.
DIRECTOR, Kerr-McGee Corporation

JAMES C. PITNEY 3, 4
PARTNER, Pitney, Hardin, Kipp & Szuch, Law Firm
DIRECTOR, Public Service Enterprise Group

JAMES Q. RIORDAN 3, 4
DIRECTOR, The Brooklyn Union Gas Company
TRUSTEE, Committee for Economic Development
DIRECTOR, Dow Jones & Co., Inc.
DIRECTOR, Public Broadcasting Service

RONALD T. SCHROEDER 1
MANAGING DIRECTOR, J. & W. Seligman & Co. Incorporated

ROBERT L. SHAFER 3, 4
VICE PRESIDENT, Pfizer Inc.
DIRECTOR, USLIFE Corporation

JAMES N. WHITSON 2, 4
EXECUTIVE VICE PRESIDENT AND DIRECTOR,
  Sammons Enterprises, Inc.
DIRECTOR, C-SPAN
DIRECTOR, Red Man Pipe and Supply Company

BRIAN T. ZINO 1
PRESIDENT
MANAGING DIRECTOR, J. & W. Seligman & Co. Incorporated


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



                                       22
<PAGE>
 
================================================================================
EXECUTIVE OFFICERS
- --------------------------------------------------------------------------------
WILLIAM C. MORRIS
CHAIRMAN

BRIAN T. ZINO
PRESIDENT

CHARLES C. SMITH, JR.
VICE PRESIDENT

LAWRENCE P. VOGEL
VICE PRESIDENT

THOMAS G. ROSE
TREASURER

FRANK J. NASTA
SECRETARY


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

SUBADVISER
Seligman Henderson Co.
100 Park Avenue
New York, NY 10017

GENERAL COUNSEL
Sullivan & Cromwell

INDEPENDENT AUDITORS
Deloitte & Touche LLP

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

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

IMPORTANT TELEPHONE NUMBERS
(800) 221-2450  SHAREHOLDER SERVICES

(800) 445-1777  RETIREMENT PLAN
                SERVICES

(800) 622-4597  24-HOUR AUTOMATED
                TELEPHONE ACCESS
                SERVICE



                                       23
<PAGE>
 
                                                                File No. 2-10835
                                                                         811-234

PART C.  OTHER INFORMATION
- --------------------------
Item 24.  Financial Statements and Exhibits
- -------   ---------------------------------
  (a)      Financial Statements and Schedule:

    
  Part A   Financial Highlights for Class A shares for the ten years ended
           December 31, 1995; Financial Highlights for Class D shares for the
           period from May 3, 1993 (commencement of offering) to December 31,
           1995.     

    
  Part B   Required Financial Statements are included in the Fund's Annual
           Report to Shareholders, dated December 31 1995, which are
           incorporated by reference in the Statement of Additional Information.
           These Financial Statements are: Portfolio of Investments as of
           December 31, 1995; Statement of Assets and Liabilities as of December
           31, 1995; Statement of Operations for the year ended December 31,
           1995; Statements of Changes in Net Assets for the years ended
           December 31, 1995 and 1994; Notes to Financial Statements; Financial
           Highlights for the five years ended December 31, 1995 for the Fund's
           Class A shares and for the period May 3, 1993 (commencement of
           offering) through December 31, 1995 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.

(1a)   Articles of Amendment and Articles Supplementary to Articles of
       Incorporation of Registrant. 
       (Incorporated by Reference to Post-Effective Amendment No. 71 filed on
       April 23, 1993.)

    
(1b)   Articles Supplementary to Articles of Incorporation of Registrant, dated
       February 8, 1996.*     

    
(1c)   Articles Supplementary to Articles of Incorporation of Registrant, dated
       April 10, 1996.*     

(2 )   By-laws of the Corporation. 
       (Incorporated by Reference to Post-Effective Amendment No. 53 to
       Registrant's Registration Statement.)

    
(4a)   Specimen certificate of Class B Capital Stock. 
       (Incorporated by reference to Form SE filed on behalf of the Registrant
       on April 16, 1996)    


(4b)   Specimen certificate of Class D Capital Stock.
       (Incorporated by Reference to Post-Effective Amendment No. 71 filed on
       April 23, 1993.)

    
(5 )   Amended Management Agreement between Registrant and J. & W. Seligman &
       Co. Incorporated.*    

    
(5a)   Form of Subadvisory Agreement between the Manager and Seligman Henderson
       Co.*     

(6 )   Copy of Amended Distributing Agreement between Registrant and Seligman
       Financial Services, Inc.
       (Incorporated by Reference to Post-Effective Amendment No. 71 filed on
       April 23, 1993.)

    
(6a)   Copy of Amended Sales Agreement between Seligman Financial Services, Inc.
       and Dealers.*     

(7 )   Amendments to the Amended Retirement Income Plan of J. & W. Seligman &
       Co. Incorporated and Trust.
       (Incorporated by Reference to Post-Effective Amendment No.72 filed on
       April 29, 1994.)

(7a)   Amendments to the Amended Employees' Thrift Plan of Union Data Service
       Center, Inc. and Trust.
       (Incorporated by Reference to Post-Effective Amendment No. 72 filed on
       April 29, 1994.)

(8 )   Copy of Custodian Agreement between Registrant and Investors Fiduciary
       Trust Company.
       (Incorporated by Reference to Post-Effective Amendment No. 69 filed on
       April 30, 1991.)

(9 )   N/A

(10 )  Opinion and Consent of Counsel.
       (Incorporated by reference to Seligman Capital Fund, Inc. File No. 
       2-33566 Post-Effective Amendment No. 47 filed on March 31, 1994.)

(11)   Report and Consent of Independent Auditors.*

PART C.  OTHER INFORMATION (continued)
         -----------------            
<PAGE>
 
                                                                File No. 2-10835
                                                                         811-234

Item 24.  Financial Statements and Exhibits (continued)
- -------   ---------------------------------            

    
(13a)  Purchase Agreement for Initial Capital between Registrant's Class B
       shares & J. W. Seligman & Co. Incorporated.*     

(13b)  Purchase Agreement for Initial Capital between Registrant's Class D
       Shares and J. & W. Seligman & Co. Incorporated.
       (Incorporated by Reference to Post-Effective Amendment No. 71 filed on
       April 23, 1993.)

(14)   Copy of Amended Individual Retirement Account Trust and Related
       Documents.
       (Incorporated by Reference to Post-Effective Amendment No. 70 filed on
       April 30, 1992.)

(14a)  Copy of Amended Comprehensive Retirement Plans for Money Purchase and/or
       Prototype Profit Sharing Plan.
       (Incorporated by Reference to Seligman Tax-Exempt Fund Series, Inc., File
       No. 2-86008, Post-Effective Amendment No. 24 filed on November 30, 1992)

(14b)  Copy of Amended Basic Business Retirement Plans for Money Purchase
       and/or Profit Sharing Plans.
       (Incorporated by Reference to Seligman Tax-Exempt Fund Series, Inc., File
       No. 2-86008, Post-Effective Amendment No. 24 filed on November 30, 1992)

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

(14d)  Copy of Amended Simplified Employee Pension Plan (SEP).
       (Incorporated by Reference to Post-Effective Amendment No. 70 filed on
       April 30, 1992.)

(14e)  Copy of the Amended J. & W. Seligman & Co. Incorporated (SARSEP) Salary
       Reduction and Other Elective Simplified Employee Pension-Individual
       Retirement Accounts Contribution Agreement (Under Section 408(k) of the
       Internal Revenue Code).
       (Incorporated by Reference to Post-Effective Amendment No. 70 filed on
       April 30, 1992.)

(15)   Copy of Amended Administration, Shareholder Services and Distribution
       Plan and form of Agreement of Registrant.*

(16)   Schedule of Computation of Performance Data provided in Registration
       Statement in response to Item 22.
       (Incorporated by Reference to Post-Effective Amendment No. 67 filed on
       April 28, 1990.)

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

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

Item 25.  Persons Controlled by or Under Common Control with Registrant -
- -------   -------------------------------------------------------------  
          Seligman Data Corp. ("SDC"), a New York corporation, is owned by the
          Registrant and certain associated investment companies. The
          Registrant's investment in SDC is recorded at a cost of $22,506.

Item 26.  Number of Holders of Securities
- --------  -------------------------------

    
<TABLE> 
<CAPTION> 
                        (1)                             (2)
                                                    Number of Record
                  Title of Class              Holders as of March 29, 1996
                  --------------              ----------------------------
                  <S>                         <C> 
                  Class A Common Stock                    19,045
                  Class B Common Stock                         0
                  Class D Common Stock                     4,303
</TABLE>
     

Item 27.  Indemnification - Incorporated by reference to Registrant's Post-
- --------  ---------------                                                 
          Effective Amendment No. 69 (File No. 2-10835) as filed with the
          Commission on 5/1/91.
<PAGE>
 
                                                                File No. 2-10835
                                                                         811-234

PART C.  OTHER INFORMATION (continued)
         -----------------            

Item 28.  Business and Other Connections of Investment Adviser -  The Manager
- --------  ----------------------------------------------------               
          also serves as investment manager to sixteen associated investment
          companies. They are Seligman Capital Fund, Inc., Seligman Cash
          Management Fund, Inc., Seligman Communications and Information Fund,
          Inc., Seligman Frontier Fund, Inc., Seligman Growth Fund, Inc.,
          Seligman Henderson Global Fund Series, Inc., Seligman High Income Fund
          Series, Seligman Income Fund, Inc., Seligman New Jersey Tax-Exempt
          Fund, Inc., Seligman Pennsylvania Tax-Exempt Fund Series, Seligman
          Portfolios, Inc., Seligman Quality Municipal Fund, Inc., Seligman Tax-
          Exempt Fund Series, Inc., Seligman Tax-Exempt Series Trust, Seligman
          Select Municipal Fund, Inc. and Tri-Continental Corporation.

          The Subadviser also serves as subadviser to eight other associated
          investment companies. They are Seligman Capital Fund, Inc., Seligman
          Communications and Information Fund, Inc., Seligman Growth Fund, Inc.,
          Seligman Frontier Fund, Inc., Seligman Henderson Global Fund Series,
          Inc., Seligman Income Fund, Inc., the Global and Global Smaller
          Companies Portfolios of Seligman Portfolios, Inc. and Tri-Continental
          Corporation.

    
          The Manager and Subadviser have investment advisory service divisions
          which provide investment management or advice to private clients. The
          list required by this Item 28 of officers and directors of the Manager
          and the Subadviser, respectively, 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 and the Subadviser, respectively, pursuant to the
          Investment Advisers Act of 1940 (SEC File No. 801-5798 and SEC File
          No. 801-4067 both of which were filed on December 5, 1995).     

Item 29.  Principal Underwriters
- -------   ----------------------

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

                         Seligman Cash Management Fund, Inc.
                         Seligman Capital Fund, Inc.
                         Seligman Communications and Information Fund, Inc.
                         Seligman Frontier Fund, Inc.
                         Seligman Growth Fund, Inc.
                         Seligman Henderson Global Fund Series, Inc.
                         Seligman High Income Fund Series
                         Seligman Income Fund, Inc.
                         Seligman New Jersey Tax-Exempt Fund, Inc.
                         Seligman Pennsylvania Tax-Exempt Fund Series
                         Seligman Portfolios, Inc.
                         Seligman Tax-Exempt Fund Series, Inc.
                         Seligman Tax-Exempt Series Trust

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

                       Seligman Financial Services, Inc.
                       ---------------------------------
                             As of March 29, 1996
                             --------------------

    
<TABLE>
<CAPTION> 
             (1)                                 (2)                                   (3)
       Name and Principal                Positions and Offices                Positions and Offices
        Business Address                   with Underwriter                      with Registrant
        ----------------                   ----------------                      --------------  
       <S>                               <C>                                  <C>   
        WILLIAM C. MORRIS*                  Director                             Chairman of the Board and 
                                                                                 Chief Executive Officer
        BRIAN T. ZINO*                      Director                             Director and President
        RONALD T. SCHROEDER*                Director                             Director
        FRED E. BROWN*                      Director                             Director
        WILLIAM H. HAZEN*                   Director                             None
        THOMAS G. MOLES*                    Director                             None
        DAVID F. STEIN*                     Director                             None
        STEPHEN J. HODGDON*                 President                            None
        LAWRENCE P. VOGEL*                  Senior Vice President, Finance       Vice President
</TABLE>
     
<PAGE>
 
                                                                File No. 2-10835
                                                                         811-234

PART C.  OTHER INFORMATION (continued)
- ------   -----------------            

                       Seligman Financial Services, Inc.
                       ---------------------------------
                             As of March 29, 1996
                             --------------------

    
<TABLE>
<CAPTION> 
             (1)                                 (2)                                   (3)
       Name and Principal                Positions and Offices                Positions and Offices
        Business Address                   with Underwriter                      with Registrant
        ----------------                   ----------------                      --------------  
       <S>                               <C>                                  <C>   
        MARK R. GORDON*                    Senior Vice President, Director       None
                                           of Marketing                          
        GERALD I. CETRULO, III             Senior Vice President of Sales,       None
        140 West Parkway                   Regional Sales Manager                
        Pompton Plains, NJ  07444                                                
        BRADLEY F. HANSON                  Senior Vice President of Sales,       None
        9707 Xylon Court                   Regional Sales Manager                
        Bloomington, MN  55438                                                   
        BRADLEY W. LARSON                  Senior Vice President of Sales,       None
        367 Bryan Drive                    Regional Sales Manager                
        Danville, CA  94526                                                      
        D. IAN VALENTINE                   Senior Vice President of Sales,       None
        307 Braehead Drive                 Regional Sales Manager                
        Fredericksburg, VA  22401                                                
        HELEN SIMON*                       Vice President, Sales                 None
                                           Administration Manager                
        MARSHA E. JACOBY*                  Vice President, National Accounts     None
                                           Manager                               
        WILLIAM W. JOHNSON*                Vice President, Order Desk            None
        JAMES R. BESHER                    Regional Vice President               None
        14000 Margaux Lane                                                       
        Town & Country, MO  63017                                                
        BRAD DAVIS                         Regional Vice President               None
        255 4th Avenue, #2                                                       
        Kirkland, WA  98033                                                      
        ANDREW DRALUCK                     Regional Vice President               None
        4215 N. Civic Center                                                     
        Blvd #273                                                                
        Scottsdale, AZ 85251                                                     
        JONATHAN EVANS                     Regional Vice President               None
        222 Fairmont Way                                                         
        Ft. Lauderdale, FL  33326                                                
        CARLA GOEHRING                     Regional Vice President               None
        11426 Long Pine                                                          
        Houston, TX  77077                                                       
        SUSAN GUTTERUD                     Regional Vice President               None
        820 Humboldt, #6                                                         
        Denver, CO  80218                                                        
        MARK LIEN                          Regional Vice President               None
        5904 Mimosa                                                              
        Sedalia, MO  65301                                                       
        RANDY D. LIERMAN                   Regional Vice President               None
        2627 R.D. Mize Road                                                      
        Independence, MO  64057                                                  
        JUDITH L. LYON                     Regional Vice President               None
        163 Haynes Bridge Road, Ste 205                                          
        Alpharetta, CA  30201                                                    
        DAVID MEYNCKE                      Regional Vice President               None
        4718 Orange Grove Way
        Palm Harbor, FL  34684
</TABLE> 
     
<PAGE>
 
                                                                File No. 2-10835
                                                                         811-234

PART C.  OTHER INFORMATION (continued)
- ------   -----------------            

                       Seligman Financial Services, Inc.
                       ---------------------------------
                             As of March 29, 1996
                             --------------------
    
<TABLE>
<CAPTION> 
              (1)                                 (2)                                   (3)
       Name and Principal                Positions and Offices                Positions and Offices
        Business Address                   with Underwriter                      with Registrant
        ----------------                   ----------------                      --------------  
       <S>                               <C>                                  <C>   
        HERB W. MORGAN                     Regional Vice President               None
        11308 Monticook Court                                                    
        San Diego, CA  92127                                                     
        MELINDA NAWN                       Regional Vice President               None
        5850 Squire Hill Court                                                   
        Cincinnati, OH  45241                                                    
        ROBERT H. RUHM                     Regional Vice President               None
        167 Derby Street                                                         
        Melrose, MA  02176                                                       
        DIANE H. SNOWDEN                   Regional Vice President               None
        11 Thackery Lane                                                         
        Cherry Hill, NJ  08003                                                   
        BRUCE TUCKEY                       Regional Vice President               None
        41644 Chathman Drive                                                     
        Novi, MI  48375                                                          
        ANDREW VEASEY                      Regional Vice President               None
        14 Woodside                                                              
        Rumson, NJ  07760                                                        
        TODD VOLKMAN                       Regional Vice President               None
        4650 Cole Avenue, #216                                                   
        Dallas, TX 75205                                                         
        KELLI A. WIRTH-DUMSER              Regional Vice President               None
        8618 Hornwood Court                                                      
        Charlotte, NC  28215                                                     
        FRANK P. MARINO*                   Assistant Vice President, Mutual
                                           Fund Product Manager                  None   
        FRANK J. NASTA*                    Secretary                             Secretary
        AURELIA LACSAMANA*                 Treasurer                             None
</TABLE>
     

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

       (c) Not applicable.

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

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

<TABLE>
<CAPTION>
                                    1995      1994       1993
                                    ----      ----       ----
              <S>                 <C>      <C>       <C>
 
              Class A Shares      $90,100  $ 83,256  $ 109,600
              Class D Shares       $6,000   $ 4,905      $ 200
</TABLE>


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. 2-10835
                                                                         811-234

                                   SIGNATURES
                                   ----------

     Pursuant to the requirements of the Securities Act of 1933, and the
Investment Company Act of 1940, the Registrant certifies that it meets all of
the requirements for effectiveness of this Post-Effective Amendment pursuant to
Rule 485(b) under the Securities Act of 1933 and has duly caused this Post-
Effective Amendment No. 74 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 19th day of April, 1996.

                                          SELIGMAN COMMON STOCK 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. 74 has been
signed below by the following persons in the capacities indicated on April
19, 1996.


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

                                                                               
                                                                               
/s/ Brian T. Zino                            Director and President  
- -----------------------------                                                  
    Brian T. Zino                            
                                                                               
                                                                               
                                                                               
                                                                               
/s/ Thomas G. Rose                           Treasurer   
- -----------------------------                                                  
    Thomas G. Rose        



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

<TABLE> <S> <C>

<PAGE>
<ARTICLE> 6
<SERIES>
   <NUMBER> 001
   <NAME> SELIGMAN COMMON STOCK FUND CLASS A
<MULTIPLIER> 1,000
       
<S>                             <C>
<PERIOD-TYPE>                   YEAR
<FISCAL-YEAR-END>                          DEC-31-1995
<PERIOD-END>                               DEC-31-1995
<INVESTMENTS-AT-COST>                          484,541
<INVESTMENTS-AT-VALUE>                         656,271
<RECEIVABLES>                                    5,412
<ASSETS-OTHER>                                   1,958
<OTHER-ITEMS-ASSETS>                                 0
<TOTAL-ASSETS>                                 663,641
<PAYABLE-FOR-SECURITIES>                           366
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                        2,311
<TOTAL-LIABILITIES>                              2,677
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                       660,964
<SHARES-COMMON-STOCK>                           43,307<F1>
<SHARES-COMMON-PRIOR>                           42,160<F1>
<ACCUMULATED-NII-CURRENT>                          538
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                         13,474
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                       171,730
<NET-ASSETS>                                   614,400<F1>
<DIVIDEND-INCOME>                               16,966<F1>
<INTEREST-INCOME>                                3,102<F1>
<OTHER-INCOME>                                      40<F1>
<EXPENSES-NET>                                 (5,344)<F1>
<NET-INVESTMENT-INCOME>                         14,764<F1>
<REALIZED-GAINS-CURRENT>                        55,227
<APPREC-INCREASE-CURRENT>                       76,701
<NET-CHANGE-FROM-OPS>                          147,208
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                     (14,965)
<DISTRIBUTIONS-OF-GAINS>                      (38,904)<F1>
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                          4,908<F1>
<NUMBER-OF-SHARES-REDEEMED>                    (6,219)<F1>
<SHARES-REINVESTED>                              2,458<F1>
<NET-CHANGE-IN-ASSETS>                         135,592
<ACCUMULATED-NII-PRIOR>                            740
<ACCUMULATED-GAINS-PRIOR>                            0
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                            2,761<F1>
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                                  5,344<F1>
<AVERAGE-NET-ASSETS>                           575,705<F1>
<PER-SHARE-NAV-BEGIN>                            12.12<F1>
<PER-SHARE-NII>                                    .36<F1>
<PER-SHARE-GAIN-APPREC>                           3.01<F1>
<PER-SHARE-DIVIDEND>                             (.36)<F1>
<PER-SHARE-DISTRIBUTIONS>                        (.94)<F1>
<RETURNS-OF-CAPITAL>                                 0<F1>
<PER-SHARE-NAV-END>                              14.19<F1>
<EXPENSE-RATIO>                                    .93<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>

<PAGE>
<ARTICLE> 6
<SERIES>
   <NUMBER> 004
   <NAME> SELIGMAN COMMON STOCK FUND CLASS D
<MULTIPLIER> 1,000
       
<S>                             <C>
<PERIOD-TYPE>                   YEAR
<FISCAL-YEAR-END>                          DEC-31-1995
<PERIOD-END>                               DEC-31-1995
<INVESTMENTS-AT-COST>                          484,511
<INVESTMENTS-AT-VALUE>                         656,271
<RECEIVABLES>                                    5,412
<ASSETS-OTHER>                                   1,958
<OTHER-ITEMS-ASSETS>                                 0
<TOTAL-ASSETS>                                 663,641
<PAYABLE-FOR-SECURITIES>                           366
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                        2,311
<TOTAL-LIABILITIES>                              2,677
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                       660,954
<SHARES-COMMON-STOCK>                            3,289<F1>
<SHARES-COMMON-PRIOR>                            1,194<F1>
<ACCUMULATED-NII-CURRENT>                          897
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                         13,474
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                       171,730
<NET-ASSETS>                                    46,564<F1>
<DIVIDEND-INCOME>                                  850<F1>
<INTEREST-INCOME>                                  156<F1>
<OTHER-INCOME>                                       2<F1>
<EXPENSES-NET>                                 (4,192)<F1>
<NET-INVESTMENT-INCOME>                            516<F1>
<REALIZED-GAINS-CURRENT>                        55,227
<APPREC-INCREASE-CURRENT>                       76,701
<NET-CHANGE-FROM-OPS>                          147,208
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                        (491)<F1>
<DISTRIBUTIONS-OF-GAINS>                       (2,849)<F1>
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                          2,517<F1>
<NUMBER-OF-SHARES-REDEEMED>                      (644)<F1>
<SHARES-REINVESTED>                                222<F1>
<NET-CHANGE-IN-ASSETS>                         135,592
<ACCUMULATED-NII-PRIOR>                            740
<ACCUMULATED-GAINS-PRIOR>                            0
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                              137<F1>
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                                    491<F1>
<AVERAGE-NET-ASSETS>                            28,640<F1>
<PER-SHARE-NAV-BEGIN>                            12.07<F1>
<PER-SHARE-NII>                                    .24<F1>
<PER-SHARE-GAIN-APPREC>                           3.01<F1>
<PER-SHARE-DIVIDEND>                             (.22)<F1>
<PER-SHARE-DISTRIBUTIONS>                        (.94)<F1>
<RETURNS-OF-CAPITAL>                                 0<F1>
<PER-SHARE-NAV-END>                              14.16<F1>
<EXPENSE-RATIO>                                   1.72<F1>
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
<FN>
<F1>Class D only.  All other data are fund level.
</FN>
        

</TABLE>

<PAGE>
 
                       SELIGMAN COMMON STOCK FUND, INC.
                       --------------------------------

                            ARTICLES SUPPLEMENTARY

     Seligman Common Stock Fund, Inc., a Maryland Corporation having its
principal office in Baltimore City, Maryland and registered as an open-end
investment company under the Investment Company Act of 1940 (hereinafter called
the "Corporation"), hereby certifies to the State Department of Assessments and
Taxation of Maryland, that:

          FIRST:  The total number of shares of capital stock of all classes
which the Corporation has authority to issue is hereby increased to 500,000,000
shares of capital stock (par value $.50 per share), amounting to an aggregate
par value of $250,000,000.

          SECOND:  The Board of Directors of the Corporation on September 21,
1995, duly adopted and approved a resolution in accordance with Section 2-105(c)
of Maryland Corporations and Associations Code, in which was set forth the
foregoing increase in capital stock of the Corporation.

          THIRD:  (a)  The total number of shares of capital stock of all
classes which the Corporation was heretofore authorized to issue was 60,000,000
shares of capital stock (par value $.50), amounting to an aggregate par value of
$30,000,000.

                  (b)  The total number of shares of Common Stock is increased
by this amendment to 500,000,000 shares of the par value of $.50 each and of the
aggregate par value of $250,000,000.

                  (c)  The Corporation currently has only one class of Common
Stock outstanding.

          IN WITNESS WHEREOF, SELIGMAN COMMON STOCK FUND, INC. has caused these
Articles Supplementary to be signed in its name and on its behalf by its
President and witnessed by its Secretary, and each of said officers of the
Corporation has also acknowledged these Articles Supplementary to be the
corporate act of the Corporation and has stated under penalties of perjury that
to the best of his knowledge, information and belief that the matters and facts
set forth with respect to approval are true in all material respects, all on
February 8, 1996.

                                      SELIGMAN COMMON STOCK FUND, INC.



                                      By /s/ Brian T. Zino
                                         ------------------------------
                                             Brian T. Zino, President

Witness:

/s/ Frank J. Nasta
- -----------------------------
      Frank J. Nasta
       Secretary

<PAGE>
 
                       SELIGMAN COMMON STOCK FUND, INC.
                       --------------------------------

                            ARTICLES SUPPLEMENTARY

          Seligman Common Stock Fund, Inc., a Maryland corporation having its
principal office in Baltimore City, Maryland (hereinafter called the
"Corporation") and registered as an open-end investment company under the
Investment Company Act of 1940, as amended (the "Investment Company Act"),
hereby certifies to the State Department of Assessments and Taxation of Maryland
that:

          FIRST:  The total number of shares of capital stock of all classes
which the Corporation has authority to issue is 500,000,000 shares, which were
previously classified by the Board of Directors of the Corporation into two
classes designated as Class A Common Stock and Class D Common Stock.  The number
of authorized shares of Class A Common Stock and of Class D Common Stock each
consisted of the sum of x and y, where x equalled the issued and outstanding
shares of such class and y equalled one-half of the authorized but unissued
shares of Common Stock of all classes; provided that at all times the aggregate
authorized, issued and outstanding shares of Class A and Class D Common Stock
shall not exceed the authorized number of shares of Common Stock; and, in the
event application of the formula above would have resulted, at any time, in
fractional shares, the applicable number of authorized shares of each class was
to have been rounded down to the nearest whole number of shares of such class.

          SECOND:  Pursuant to the authority of the Board of Directors to
classify and reclassify unissued shares of capital stock, the Board of Directors
has reclassified the unissued shares of Class A Common Stock and Class D Common
Stock into the following classes and has provided for the issuance of shares of
such classes.  The terms of the Common Stock as set by the Board of Directors
are as follows:

          (a)  The Common Stock of the Corporation shall have three classes of
     shares, which shall be designated Class A Common Stock, Class B Common
     Stock and Class D Common Stock.  The number of authorized shares of Class A
     Common Stock, of Class B Common Stock and of Class D Common Stock shall
     each consist of the sum of x and y, where x equals the issued and
     outstanding shares of such class and y equals one-third of the authorized
     but unissued shares of Common Stock of all classes; provided that at all
     times the aggregate authorized, issued and outstanding shares of Class A,
     Class B and Class D Common Stock shall not exceed the authorized number of
     shares of Common Stock (i.e., 500,000,000 shares of Common Stock until
     changed by further action of the Board of Directors in accordance with
     Section 2-208.1 of the Maryland General Corporation Law, or any successor
     provision); and, in the event application of the formula above would
     result, at any time, in fractional shares, the applicable number of
     authorized shares of each class shall be rounded down to the nearest whole
     number of shares of such class.  Any class of Common Stock shall be
     referred to herein individually as a "Class" and collectively, together
     with any further class or classes from time to time established, as the
     "Classes".

          (b)  All Classes shall represent the same interest in the Corporation
     and have identical voting, dividend, liquidation, and other rights;
     provided, however, that notwithstanding anything in the charter of the
     Corporation to the contrary:

               (1)  Class A shares may be subject to such front-end sales loads
          as may be established by the Board of Directors from time to time in
          accordance with the Investment Company Act and applicable rules and
          regulations of the National Association of Securities Dealers, Inc.
          (the "NASD").

               (2)  Class B shares may be subject to such contingent deferred
          sales charges as may be established from time to time by the Board of
          Directors in accordance with the Investment Company Act and applicable
          rules and regulations of the NASD.  Subject to subsection (5) below,
          each Class B share shall convert automatically into Class A shares on
          the last business day of the month that precedes the eighth
          anniversary of the date of issuance of such Class B share; such
          conversion shall be effected on the basis of the relative net asset
          values of Class B shares and Class A shares as determined by the
          Corporation on the date of conversion.

                                      -1-
<PAGE>
 
               (3)  Class D shares may be subject to such contingent deferred
          sales charges as may be established from time to time by the Board of
          Directors in accordance with the Investment Company Act and applicable
          rules and regulations of the NASD.

               (4)  Expenses related solely to a particular Class (including,
          without limitation, distribution expenses under a Rule 12b-1 plan and
          administrative expenses under an administration or service agreement,
          plan or other arrangement, however designated, which may differ
          between the Classes) shall be borne by that Class and shall be
          appropriately reflected (in the manner determined by the Board of
          Directors) in the net asset value, dividends, distribution and
          liquidation rights of the shares of that Class.

               (5)  At such time as shall be permitted under the Investment
          Company Act, any applicable rules and regulations thereunder and the
          provisions of any exemptive order applicable to the Corporation, and
          as may be determined by the Board of Directors and disclosed in the
          then current prospectus of the Corporation, shares of a particular
          Class may be automatically converted into shares of another Class;
          provided, however, that such conversion shall be subject to the
          continuing availability of an opinion of counsel to the effect that
          such conversion does not constitute a taxable event under Federal
          income tax law.  The Board of Directors, in its sole discretion, may
          suspend any conversion rights if such opinion is no longer available.

               (6)  As to any matter with respect to which a separate vote of
          any Class is required by the Investment Company Act or by the Maryland
          General Corporation Law (including, without limitation, approval of
          any plan, agreement or other arrangement referred to in subsection (4)
          above), such requirement as to a separate vote by the Class shall
          apply in lieu of single Class voting, and, if permitted by the
          Investment Company Act or any rules, regulations or orders thereunder
          and the Maryland General Corporation Law, the Classes shall vote
          together as a single Class on any such matter that shall have the same
          effect on each such Class.  As to any matter that does not affect the
          interest of a particular Class, only the holders of shares of the
          affected Class shall be entitled to vote.

     THIRD:  These Articles Supplementary do not change the total number of
authorized shares of the Corporation.

          IN WITNESS WHEREOF, SELIGMAN COMMON STOCK FUND, INC. has caused these
Articles Supplementary to be signed in its name and on its behalf by its
President and witnessed by its Secretary, and each of said officers of the
Corporation has also acknowledged these Articles Supplementary to be the
corporate act of the Corporation and has stated under penalties of perjury that
to the best of his knowledge, information and belief that the matters and facts
set forth with respect to approval are true in all material respects, all on
April 10, 1996.

                                              SELIGMAN COMMON STOCK FUND, INC.


                                              By:  /s/ Brian T. Zino
                                                   -----------------
                                              Brian T. Zino, President
Witness:

/s/ Frank J. Nasta
- ------------------
Frank J. Nasta
Secretary


                                      -2-

<PAGE>
 
                             MANAGEMENT AGREEMENT

     MANAGEMENT AGREEMENT, dated as of December 29, 1988 and amended April 10,
1991 and amended January 1, 1996 between SELIGMAN COMMON STOCK FUND, INC., a
Maryland corporation (the "Corporation"), and J. & W. SELIGMAN & CO.
INCORPORATED, a Delaware corporation (the "Manager").

     In consideration of the mutual agreements herein made, the parties hereto
agree as follows:

1.    DUTIES OF THE MANAGER.  The Manager shall manage the affairs of the
      Corporation including, but not limited to, continuously providing the
      Corporation with investment management, including investment research,
      advice and supervision, determining which securities shall be purchased or
      sold by the Corporation, making purchases and sales of securities on
      behalf of the Corporation and determining how voting and other rights with
      respect to securities of the Corporation shall be exercised, subject in
      each case to the control of the Board of Directors of the Corporation and
      in accordance with the objectives, policies and principles set forth in
      the Registration Statement and Prospectus of the Corporation and the
      requirements of the Investment Company Act of 1940 (the "Act") and other
      applicable law.  In performing such duties, the Manager shall provide such
      office space, such bookkeeping, accounting, internal legal, clerical,
      secretarial and administrative services (exclusive of, and in addition to,
      any such services provided by any others retained by the Corporation) and
      such executive and other personnel as shall be necessary for the
      operations of the Corporation.  The Manager shall also, if requested by
      and subject to the control of the Board of Directors of Seligman Data
      Corp. ("Data"), manage the affairs of Data and provide Data with such
      office management, personnel, reproduction, employee cafeteria and
      internal legal services and such senior executive officers (other than
      vice presidents) as may be necessary for the operation of Data, and with a
      treasurer, a corporate secretary and a principal operating officer.

2.    EXPENSES.  The Manager shall pay all of its expenses arising from the
      performance of its obligations under Section 1 and shall pay any salaries,
      fees and expenses of the directors of the Corporation who are employees of
      the Manager or its affiliates.  The Manager shall not be required to pay
      any other expenses of the Corporation, including, but not limited to,
      direct charges relating to the purchase and sale of portfolio securities,
      interest charges, fees and expenses of independent attorneys and auditors,
      taxes and governmental fees, cost of stock certificates and any other
      expenses (including clerical expenses) of issue, sale, repurchase or
      redemption of shares, expenses of registering and qualifying shares for
      sale, expenses of printing and distributing reports, notices and proxy
      materials to shareholders, expenses of corporate data processing and
      related services, shareholder recordkeeping and shareholder account
      service, expenses of printing and filing reports and other documents filed
      with governmental agencies, expenses of printing and distributing
      prospectuses, expenses of annual and special shareholders' meetings, fees
      and disbursements of transfer agents and custodians, expenses of
      disbursing dividends and distributions, fees and expenses of directors of
      the Corporation who are not employees of the Manager or its affiliates,
      membership dues in the Investment Company Institute, insurance premiums
      and extraordinary expenses such as litigation expenses.

3.   COMPENSATION.

     (a)   As compensation for the services performed and the facilities and
           personnel provided by the Manager pursuant to Section 1, the
           Corporation will pay to the Manager promptly after the end of each
           month a fee, calculated on each day during such month, on the basis
           of the Corporation's net assets at the close of
<PAGE>
 
           business on the previous day, at an annual rate of .65% of the
           Corporation's average daily net assets on the first $1,000,000,000 of
           net assets, .60% of the Corporation's average daily net assets on the
           next $1,000,000,000 and .55% of the Corporation's average daily net
           assets in excess of $2,000,000,000.

     (b)   If the manager shall serve hereunder for less than the whole of any
           month, the fee hereunder shall be prorated.

4.    PURCHASE AND SALE OF SECURITIES.  The Manager shall purchase securities
      from or through and sell securities to or through such persons, brokers or
      dealers (including the Manager or an affiliate of the Manager) as the
      Manager shall deem appropriate in order to carry out the policy with
      respect to brokerage as set forth in the Registration Statement and
      Prospectus of the Corporation or as the Board of Directors of the
      Corporation may direct from time to time.  In providing the Corporation
      with investment management and supervision it is recognized that the
      Manager will seek the most favorable price and execution, and, consistent
      with such policy, may give consideration to the research, statistical and
      other services furnished by brokers or dealers to the Manager for its use,
      to the general attitude of brokers or dealers toward investment companies
      and their support of them, and to such other considerations as the Board
      of Directors of the Corporation may direct or authorize from time to time.

     Notwithstanding the above, it is understood that it is desirable for the
Corporation that the Manager have access to supplemental investment and market
research and security and economic analysis provided by brokers who execute
brokerage transactions at a higher cost to the Corporation than may result when
allocating brokerage to other brokers on the basis of seeking the most favorable
price and execution.  Therefore, the Manager is authorized to place orders for
the purchase and sale of securities for the Corporation with such brokers,
subject to review by the Corporation's Board of Directors from time to time with
respect to the extent and continuation of this practice.  It is understood that
the services provided by such brokers may be useful to the Manager in connection
with its services to other clients as well as to the Corporation.

     The placing of purchase and sale orders may be carried out by the Manager
or any wholly-owned subsidiary of the Manager.

     If, in connection with purchases and sales of securities for the
Corporation, the Manager or any subsidiary of the Manager may, without material
risk, arrange to receive a soliciting dealer's fee or other underwriter's or
dealer's discount or commission, the Manager shall, unless otherwise directed by
the Board of Directors of the Corporation, obtain such fee, discount or
commission and the amount thereof shall be applied to reduce the compensation to
be received by the Manager pursuant to Section 3 hereof.

     Nothing herein shall prohibit the Board of Directors of the Corporation
from  approving the payment by the Corporation of additional compensation to
others for consulting services, supplemental research and security and economic
analysis.

5.    TERM OF AGREEMENT.  This Agreement shall continue in full force and effect
      until December 31, 1996 and from year to year thereafter if such
      continuance is approved in the manner required by the Act and if the
      Manager shall not have notified the Corporation in writing at least 60
      days prior to December 31 or prior to December 31 of any year thereafter
      that it does not desire such continuance.  This Agreement may be
      terminated at any time, without payment of penalty by the Corporation, on
      60 days' written notice to the Manager by vote of the Board of Directors
      of the Corporation or by vote of a majority of the outstanding voting
      securities of the Corporation (as defined by the 

                                       2
<PAGE>
 
      Act). This Agreement shall automatically terminate in the event of its
      assignment (as defined by the Act).

6.    MISCELLANEOUS.  This Agreement shall be governed by and construed in
      accordance with the laws of the State of New York.  Anything herein to the
      contrary notwithstanding, this Agreement shall not be construed to
      require, or to impose any duty upon either of the parties, to do anything
      in violation of any applicable laws or regulations.

     IN WITNESS WHEREOF, the Corporation and the Manager have caused this
Agreement to be executed by their duly authorized officers as of the date first
above written.

                                         SELIGMAN COMMON STOCK FUND, INC.
                                 
                                 
                                 
                                              /s/ Brian T. Zino
                                         By ____________________________________
                                                  Brian T. Zino
                                 
                                 
                                         J. & W. SELIGMAN & CO. INCORPORATED
                                 
                                 
                                 
                                              /s/ William C. Morris
                                         By ____________________________________
                                                  William C. Morris

                                       3

<PAGE>
 
                             SUBADVISORY AGREEMENT

                       SELIGMAN COMMON STOCK FUND, INC.


SUBADVISORY AGREEMENT, dated as of May 19, 1994 and amended January 1, 1996
between J. & W. SELIGMAN & CO. INCORPORATED, a Delaware corporation (the
"Manager") and SELIGMAN HENDERSON CO., a New York general partnership (the
"Subadviser").

WHEREAS, the Manager has entered into a Management Agreement dated December 29,
1988, as amended April 10, 1991 and January 1, 1996 (the "Management Agreement")
with Seligman Common Stock Fund, Inc. (the "Fund"), an open-end diversified
management investment company registered under the Investment Company Act of
1940, as amended (the "1940 Act"), pursuant to which the Manager will render
investment management services to the Fund, and to administer the business and
other affairs of the Fund; and

WHEREAS, the Manager desires to retain the Subadviser to provide investment
management services to the Fund, and the Subadviser is willing to render such
investment management services.

NOW, THEREFORE, in consideration of the mutual covenants contained herein, the
parties hereto agree as follows:

1.   DUTIES OF THE SUBADVISER.  The Subadviser will provide the Fund with
investment management services with respect to assets of the Fund if, and to the
extent, designated by the Manager (such designated assets, "Qualifying Assets").
Such services shall include investment research, advice and supervision,
determining which securities shall be purchased or sold by the Fund, making
purchases and sales of securities on behalf of the Fund and determining how
voting and other rights with respect to securities of the Fund shall be
exercised, subject in each case to the control of the Board of Directors of the
Fund and in accordance with the objectives, policies and principles set forth in
the Registration Statement and Prospectus(es) of the Fund and the requirements
of the 1940 Act and other applicable law.

Subject to Section 36 of the 1940 Act, the Subadviser shall not be liable to the
Fund for any error of judgment or mistake of law or for any loss arising out of
any investment or for any act or omission in the management of the Fund and the
performance of its duties under this Agreement except for willful misfeasance,
bad faith or gross negligence in the performance of its duties or by reason of
reckless disregard of its obligations and duties under this Agreement.

2.   EXPENSES.  The Subadviser shall pay all of its expenses arising from the
performance of its obligations under Section 1.

3.   COMPENSATION

     (a)  As compensation for the services performed and the facilities and
          personnel provided by the Subadviser pursuant to Section 1, the
          Manager will pay to the Subadviser each month a fee, equal to the
          Applicable Percentage of the average monthly Net Qualifying Assets of
          the Fund.
<PAGE>
 
     (b)  As used herein:

          (1)  The term "Applicable Percentage" means the percentage fee rate
               that the Manager receives from the Fund pursuant to the
               Management Agreement, which equals .65% of the Fund's average
               daily net assets on the first $1,000,000,000 of net assets, .60%
               of the Fund's average daily net assets on the next $1,000,000,000
               and .55% of the Fund's average daily net assets in excess of
               $2,000,000,000.

          (2)  The term "Net Qualifying Assets" means the Qualifying Assets less
               related liabilities as designated by the Manager.

     (c)  Average monthly Net Qualifying Assets shall be determined, for any
          month, by taking the average of the value of the Net Qualifying Assets
          as of the (i) opening of business on the first day of such month and
          (ii) close of business on the last day of such month.

     (d)  If the Subadviser shall serve hereunder for less than the whole of any
          month, the fee hereunder shall be prorated.

4.   PURCHASE AND SALE OF SECURITIES.  The Subadviser shall purchase securities
from or through and sell securities to or through such persons, brokers or
dealers as the Subadviser shall deem appropriate in order to carry out the
policy with respect to allocation of portfolio transactions as set forth in the
Registration Statement and Prospectus(es) of the Fund or as the Board of
Directors of the Fund may direct from time to time.  In providing the Fund with
investment management and supervision, it is recognized that the Subadviser will
seek the most favorable price and execution, and, consistent with such policy,
may give consideration to the research, statistical and other services furnished
by brokers or dealers to the Subadviser for its use, to the general attitude of
brokers or dealers toward investment companies and their support of them, and to
such other considerations as the Board of Directors of the Fund may direct or
authorize from time to time.

Notwithstanding the above, it is understood that it is desirable for the Fund
that the Subadviser have access to supplemental investment and market research
and security and economic analysis provided by brokers who execute brokerage
transactions at a higher cost to the Fund than may result when allocating
brokerage to other brokers on the basis of seeking the most favorable price and
execution.  Therefore, the Subadviser is authorized to place orders for the
purchase and sale of securities of the Fund with such brokers, subject to review
by the Fund's Board of Directors from time to time with respect to the extent
and continuation of this practice.  It is understood that the services provided
by such brokers may be useful to the Subadviser in connection with its services
to other clients as well as the Fund.

If, in connection with purchases and sales of securities for the Fund, the
Subadviser may, without material risk, arrange to receive a soliciting dealer's
fee or other underwriter's or dealer's discount or commission, the Subadviser
shall, unless otherwise directed by the Board of Directors of the Fund, obtain
such fee, discount or commission and the amount thereof shall be applied to
reduce the compensation to be received by the Subadviser pursuant to Section 3
hereof.
<PAGE>
 
Nothing herein shall prohibit the Board of Directors of the Fund from approving
the payment by the Fund of additional compensation to others for consulting
services, supplemental research and security and economic analysis.

5.   TERM OF AGREEMENT.  This Agreement shall continue in full force and effect
until December 31, 1996, and from year to year thereafter if such continuance is
approved in the manner  required by the 1940 Act, and if the Subadviser shall
not have notified the Manager in writing at least 60 days prior to such date or
prior to December 31 of any year thereafter that it does not desire such
continuance.  This Agreement may be terminated at any time, without payment of
penalty by the Fund, on 60 days' written notice to the Subadviser by vote of the
Board of Directors of the Fund or by vote of a majority of the outstanding
voting securities of the Fund (as defined by the 1940 Act).  This Agreement will
automatically terminate in the event of its assignment (as defined by the 1940
Act) or upon the termination of the Management Agreement.

6.   AMENDMENTS.  This Agreement may be amended by consent of the parties hereto
provided that the consent of the Fund is obtained in accordance with the
requirements of the 1940 Act.

7.   MISCELLANEOUS.  This Agreement shall be governed by and construed in
accordance with the laws of the State of New York.  Anything herein to the
contrary notwithstanding, this Agreement shall not be construed to require, or
to impose any duty upon either of the parties, to do anything in violation of
any applicable laws or regulations.


     IN WITNESS WHEREOF, the Manager and the Subadviser have caused this
Agreement to be executed by their duly authorized officers as of the date first
above written.

                          J. & W. SELIGMAN & CO. INCORPORATED


                              /s/ Brian T. Zino
                          BY______________________________________
                              Brian T. Zino

                          SELIGMAN HENDERSON CO.


                              /s/ David F. Stein
                          BY______________________________________
                              David F. Stein

<PAGE>
 
                                   ADDENDUM

                                      TO

                                Sales Agreement

                       covering shares of capital stock
                      or shares of beneficial interest of
                           the Seligman Mutual Funds

                                    between

                       SELIGMAN FINANCIAL SERVICES, INC.

                                      and

                                    DEALER

Dear Dealer:

     Your Sales Agreement with Seligman Financial Services, Inc. ("SFSI") is
hereby amended to include the following provisions in connection with the
offering by certain of the Seligman Mutual Funds of Class B shares as described
in each applicable prospectus:


1.   Dealer agrees to comply with the attached "Policies and Procedures" with
     respect to sales of Seligman Mutual Funds offering three classes of shares.

2.   SFSI shall be entitled to a contingent deferred sales load ("CDSL") on
     redemptions within six years of purchase on any Class B shares sold and
     within one year of purchase on any Class D shares sold.  With respect to
     omnibus accounts in which Class B shares or Class D shares are held at
     Seligman Data Corp. ("SDC") in Dealer's name, Dealer agrees that by the
     tenth day of each month it will furnish to SDC a report of each redemption
     in the preceding month to which a CDSL was applicable, accompanied by a
     check payable to SFSI in payment of the CDSL due.

3.   If, with respect to a redemption of any Class B shares or Class D shares
     sold by Dealer, the CDSL is waived because the redemption qualifies for a
     waiver set forth in the Fund's prospectus, Dealer shall promptly remit to
     SFSI an amount equal to the payment made by SFSI to Dealer at the time of
     sale with respect to such Class B shares or Class D Shares.

4.   The Dealer will comply in all respects with Notice to Members 95-80 of the
     National Association of Securities Dealers, Inc. regarding members
     obligations and responsibilities regarding mutual fund sales practices.

     The sale of any Class A,Class B or Class D shares of a Seligman Mutual Fund
will constitute Dealer's acceptance of and agreement with the terms set forth
herein.
<PAGE>
 
                                   EXHIBIT C

                            POLICIES AND PROCEDURES

     In connection with the offering by the Funds of three classes of shares,
one subject to a front-end sales load and a service fee ("Class A Shares"), one
subject to a service fee, a distribution fee, no front-end sales load and a
contingent deferred sales load on redemptions within six years of purchase
("Class B Shares") and one subject to a service fee, a distribution fee, no
front-end sales load and a contingent deferred sales load on redemptions within
one year of purchase ("Class D Shares"), it is important for an investor to
choose the method of purchasing shares which best suits his or her particular
circumstances. To assist investors in these decisions, Seligman Financial
Services has instituted the following policies with respect to orders for
Shares:

     1.   No purchase order may be placed for Class B Shares or Class D Shares
          for amounts of $4,000,000 or more.

     2.   Any purchase order for less than $4,000,000 may be for either Class A,
          Class B or Class D Shares in light of the relevant facts and
          circumstances, including:

          a.   the specific purchase order dollar amount;

          b.   the length of time the investor expects to hold his Shares; and

          c.   any other relevant circumstances such as the availability of
               purchases under a Letter of Intent, Volume Discount, or Right of
               Accumulation.

     There are instances when one method of purchasing Shares may be more
appropriate than another.  For example, an investor who would qualify for a
significant discount from the maximum sales load on Class A Shares may determine
that payment of such a reduced front-end sales load and service fee is
preferable to payment of higher ongoing distribution fee.  On the other hand, an
investor whose order would not qualify for such a discount may wish to have all
of his or her funds invested in Class B or Class D Shares.  An investor who
expects to hold his or her shares for longer than eight years might prefer Class
B Shares over Class D Shares because of the conversion feature; once the Class B
Shares have converted to Class A Shares, the ongoing distribution fees will be
reduced.  Class D Shares may remain a more attractive choice for shorter-term
investors because of the contingent deferred sales load on such shares is only
1%, and it does not apply if the investor owns his or her shares for at least
one year.  If an investor anticipates that he or she will redeem his or her
Class B Shares or Class D Shares while still subject to a contingent deferred
sales charge, the investor may, depending on the amount of the purchase, pay an
amount greater than the sales load and service fee attributable to Class A
Shares.

     Appropriate supervisory personnel within your organization must ensure that
all employees receiving investor inquiries about the purchase of Shares of a
Fund advise the investor of then available pricing structures offered by the
Fund, and the impact of choosing one method over another.  In some instances it
may be appropriate for a supervisory person to discuss a purchase with the
investor.

     Questions relating to this policy should be directed to Stephen J. Hodgdon,
President, Seligman Financial Services at (212) 850-1217.
<PAGE>
 
                                SALES AGREEMENT

                       covering shares of capital stock
                    and/or shares of beneficial interest of

                           THE SELIGMAN MUTUAL FUNDS

                          Seligman Capital Fund, Inc.
                       Seligman Common Stock Fund, Inc.
              Seligman Communications and Information Fund, Inc.
                         Seligman Frontier Fund, Inc.
                          Seligman Growth Fund, Inc.
                  Seligman Henderson Global Fund Series, Inc.
                       Seligman High Income Fund Series
                          Seligman Income Fund, Inc.
                   Seligman New Jersey Tax-Exempt Fund, Inc.
                 Seligman Pennsylvania Tax-Exempt Fund Series
                     Seligman Tax-Exempt Fund Series, Inc.
                       Seligman Tax-Exempt Series Trust

                                    between

                       SELIGMAN FINANCIAL SERVICES, INC.

                                      and

 ____________________________________________________________________________
                                    Dealer

The Dealer named above and Seligman Financial Services, Inc., exclusive agent
for distribution of shares of capital stock of Seligman Capital Fund, Inc.,
Seligman Common Stock Fund, Inc., Seligman Communications and Information Fund,
Inc., Seligman Frontier Fund, Inc., Seligman Growth Fund, Inc., Seligman
Henderson Global Fund Series, Inc., Seligman Income Fund, Inc., Seligman New
Jersey Tax-Exempt Fund, Inc., and Seligman Tax-Exempt Fund Series, Inc., and
shares of beneficial interest of Seligman High Income Fund Series, Seligman
Pennsylvania Tax-Exempt Fund, and Seligman Tax-Exempt Series Trust, agree to the
terms and conditions set forth in this agreement.


DEALER SIGNATURE                              SELIGMAN FINANCIAL SERVICES, INC.
                                              ACCEPTANCE


_______________________________               __________________________________
Principal Officer                             Stephen J. Hodgdon, President
 
                                              SELIGMAN FINANCIAL SERVICES, INC.
                                              100 Park Avenue
_______________________________
Address                                       New York, New York  10017


_______________________________               __________________________________
Employer Identification No.                   Date
<PAGE>
 
     The Dealer and Seligman Financial Services, Inc. ("Seligman Financial
Services"), as exclusive agent for distribution of Class A and Class D Shares
(as described in the "Policies and Procedures," as set forth below) of the
Capital Stock and/or Class A and Class D Shares of beneficial interest
(collectively, the "Shares") of Seligman Capital Fund, Inc., Seligman Common
Stock Fund, Inc., Seligman Communications and Information Fund, Inc., Seligman
Frontier Fund, Inc., Seligman Growth Fund, Inc., Seligman Henderson Global Fund
Series, Inc., Seligman High Income Fund Series, Seligman Income Fund, Inc.,
Seligman New Jersey Tax-Exempt Fund, Inc., Seligman Pennsylvania Tax-Exempt
Fund, Seligman Tax-Exempt Fund Series, Inc. and Seligman Tax-Exempt Series Trust
and or any other mutual fund for which Seligman Financial Services is exclusive
agent for distribution (herein called the Funds), agree as follows:

1.   The Dealer agrees to comply with the attached "Policies and Procedures"
     with respect to sales of Seligman Mutual Funds offering two classes of
     shares, as set forth below.

2.   An order for Shares of one or more of the Funds, placed by the Dealer with
     Seligman Financial Services, will be confirmed at the public offering price
     as described in each Fund's current prospectus.  Unless otherwise agreed
     when an order is placed, the Dealer shall remit the purchase price to the
     Fund, or Funds, with issuing instruction, within the period of time
     prescribed by existing regulations.  No wire orders under $1,000 may be
     placed for initial purchases.

3.   Shares of the Funds shall be offered for sale and sold by the Dealer only
     at the applicable public offering price currently in effect, determined in
     the manner prescribed in each Fund's prospectus.  Seligman Financial
     Services will make a reasonable effort to notify the Dealer of any
     redetermination or suspension of the current public offering price, but
     Seligman Financial Services shall be under no liability for failure to do
     so.

4.   On each purchase of Shares by the Dealer, the Dealer shall be entitled,
     based on the Class of Shares purchased and except as provided in each
     Fund's current prospectus, to a concession determined as a percentage of
     the price to the investor as set forth in each Fund's current prospectus.
     On each purchase of Class A Shares, Seligman Financial Services reserves
     the right to receive a minimum concession of $.75 per transaction.  No
     concessions will be paid to the Dealer for the investment of dividends in
     additional shares.

5.   Except for sales to and purchases from the Dealer's retail customers, all
     of which shall be made at the applicable current public offering price or
     the current price bid by Seligman Financial Services on behalf of the Fund,
     the Dealer agrees to buy Shares only through Seligman Financial Services
     and not from any other sources and to sell shares only to Seligman
     Financial Services, the Fund or its redemption agent and not to any other
     purchasers.

6.   By signing this Agreement, both Seligman Financial Services and the Dealer
     warrant that they are members of the National Association of Securities
     Dealers, Inc., and agree that termination of such membership at any time
     shall terminate this Agreement forthwith regardless of the provisions of
     paragraph 10 hereof.  Each party further agrees to comply with all rules
     and regulations of such Association and specifically to observe the
     following provisions:

     (a)  Neither Seligman Financial Services nor the Dealer shall withhold
          placing customers' orders for Shares so as to profit itself as a
          result of such withholding.

     (b)  Seligman Financial Services shall not purchase Shares from any of the
          Funds except for the purpose of covering purchase orders already
          received, and the Dealer shall not purchase Shares of any of the Funds
          through Seligman Financial Services other than for investment, except
          for the purpose of covering purchase orders already received.
<PAGE>
 
     (c)  Seligman Financial Services shall not accept a conditional order for
          Shares on any basis other than at a specified definite price.  The
          Dealer shall not, as principal, purchase Shares of any of the Funds
          from a recordholder at a price lower than the bid price, if any, then
          quoted by or for the Fund, but the Dealer shall not be prevented from
          selling Shares for the account of a record owner to Seligman Financial
          Services, the Fund or its redemption agent at the bid price currently
          quoted by or for such Fund, and charging the investor a fair
          commission for handling the transaction.

     (d)  If Class A Shares are repurchased by a Fund or by Seligman Financial
          Services as its agent, or are tendered for redemption within seven
          business days after confirmation by Seligman Financial  Services of
          the original purchase order of the Dealer for such Shares, (i) the
          Dealer shall forthwith refund to Seligman Financial Services the full
          concession allowed to the Dealer on the original sales and (ii)
          Seligman Financial Services shall forthwith pay to the Fund Seligman
          Financial Services' share of the "sales load" on the original sale by
          Seligman Financial Services, and shall also pay to the Fund the refund
          which Seligman Financial Services received under (i) above.  The
          Dealer shall be notified by Seligman Financial Services of such
          repurchase or redemption within ten days of the date that such
          redemption or repurchase is placed with Seligman Financial Services,
          the Fund or its authorized agent.  Termination or cancellation of this
          Agreement shall not relieve the Dealer or Seligman Financial Services
          from the requirements of this clause (d).

7.   (a)  Seligman Financial Services shall be entitled to a contingent deferred
          sales load ("CDSL") on redemptions within one year of purchase on any
          Class D Shares sold. With respect to omnibus accounts in which Class D
          Shares are held at Seligman Data Corp. ("SDC") in the Dealer's name,
          the Dealer agrees that by the tenth day of each month it will furnish
          to SDC a report of each redemption in the preceding month to which a
          CDSL was applicable, accompanied by a check payable to Seligman
          Financial Services in payment of the CDSL due.

     (b)  If, with respect to a redemption of any Class D Shares sold by the
          Dealer, the CDSL is waived because the redemption qualifies for a
          waiver set forth in the Fund's prospectus, the Dealer shall promptly
          remit to Seligman Financial Services an amount equal to the payment
          made by Seligman Financial Services to the Dealer at the time of sale
          with respect to such Class D Shares.

8.   In all transactions between Seligman Financial Services and the Dealer
     under this Agreement, the Dealer will act as principal in purchasing from
     or selling to Seligman Financial Services.  The dealer is not for any
     purposes employed or retained as or authorized to act as broker, agent or
     employee of any Fund or of Seligman Financial Services and the Dealer is
     not authorized in any manner to act for any Fund or Seligman Financial
     Services or to make any representations on behalf of Seligman Financial
     Services.  In purchasing and selling Shares of any Fund under this
     Agreement, the Dealer shall be entitled to rely only upon matters stated in
     the current offering prospectus of the applicable Fund and upon such
     written representations, if any, as may be made by Seligman Financial
     Services to the Dealer over the signature of Seligman Financial Services.

9.   Seligman Financial Services will furnish to the Dealer, without charge,
     reasonable quantities of the current offering prospectus of each Fund and
     sales material issued from time to time by Seligman Financial Services.

10.  Either Party to this Agreement may cancel this Agreement by written notice
     to the other party.  Such cancellation shall be effective at the close of
     business on the 5th day following the date on which such notice was given.
     Seligman Financial Services may modify this Agreement at any time by
     written notice to the Dealer.  Such notice shall be deemed to have been
     given on the date upon which it was either delivered personally to the
     other party or any officer or member thereof, or was mailed postage-paid,
     or delivered to a telegraph office for transmission to the other party at
     his or its address as shown herein.
<PAGE>
 
11.  This Agreement shall be construed in accordance with the laws of the State
     of New York and shall be binding upon both parties hereto when signed by
     Seligman Financial Services and by the Dealer in the spaces provided on the
     cover of this Agreement.  This Agreement shall not be applicable to Shares
     of a Fund in a state in which such Fund Shares are not qualified for sale.


                            POLICIES AND PROCEDURES

     In connection with the offering by the Funds of three classes of shares,
one subject to a front-end sales load and a service fee ("Class A Shares"), one
subject to a service fee, a distribution fee, no front-end sales load and a
contingent deferred sales load on redemptions within six years of purchase
("Class B Shares") and one subject to a service fee, a distribution fee, no
front-end sales load and a contingent deferred sales load on redemptions within
one year of purchase ("Class D Shares"), it is important for an investor to
choose the method of purchasing shares which best suits his or her particular
circumstances. To assist investors in these decisions, Seligman Financial
Services has instituted the following policies with respect to orders for
Shares:

     1.   No purchase order may be placed for Class B Shares or Class D Shares
          for amounts of $4,000,000 or more.

     2.   Any purchase order for less than $4,000,000 may be for either Class A,
          Class B or Class D Shares in light of the relevant facts and
          circumstances, including:

          a.   the specific purchase order dollar amount;

          b.   the length of time the investor expects to hold his Shares; and

          c.   any other relevant circumstances such as the availability of
               purchases under a Letter of Intent, Volume Discount, or Right of
               Accumulation.

     There are instances when one method of purchasing Shares may be more
appropriate than another.  For example, an investor who would qualify for a
significant discount from the maximum sales load on Class A Shares may determine
that payment of such a reduced front-end sales load and service fee is
preferable to payment of higher ongoing distribution fee.  On the other hand, an
investor whose order would not qualify for such a discount may wish to have all
of his or her funds invested in Class B or Class D Shares.  An investor who
expects to hold his or her shares for longer than eight years might prefer Class
B Shares over Class D Shares because of the conversion feature; once the Class B
Shares have converted to Class A Shares, the ongoing distribution fees will be
reduced.  Class D Shares may remain a more attractive choice for shorter-term
investors because of the contingent deferred sales load on such shares is only
1%, and it does not apply if the investor owns his or her shares for at least
one year.  If an investor anticipates that he or she will redeem his or her
Class B Shares or Class D Shares while still subject to a contingent deferred
sales charge, the investor may, depending on the amount of the purchase, pay an
amount greater than the sales load and service fee attributable to Class A
Shares.

     Appropriate supervisory personnel within your organization must ensure that
all employees receiving investor inquiries about the purchase of Shares of a
Fund advise the investor of then available pricing structures offered by the
Fund, and the impact of choosing one method over another.  In some instances it
may be appropriate for a supervisory person to discuss a purchase with the
investor.

     Questions relating to this policy should be directed to Stephen J. Hodgdon,
President, Seligman Financial Services at (212) 850-1217.

<PAGE>
 
Consent of Independent Auditors


Seligman Common Stock Fund, Inc.:

We consent to the incorporation by reference in the Statement of Additional
Information in this Post-Effective Amendment No. 74 to Registration Statement
No. 2-10835 of our report dated February 2, 1996, appearing in the Annual Report
to shareholders for the year ended December 31, 1995, and to the reference to us
under the caption "Financial Highlights" in the Prospectus, which is a part of
such Registration Statement.



DELOITTE & TOUCHE LLP
New York, New York
April 17, 1996

<PAGE>
 
                               INVESTMENT LETTER

                       SELIGMAN COMMON STOCK FUND, INC.


Seligman Common Stock Fund, Inc. (the "Fund"), an open-end diversified
management investment company, and the undersigned ("Purchaser"), intending to
be legally bound, hereby agree as follows:

1.   The Fund hereby sells to Purchaser and Purchaser purchases 1 Class B share
     (the "Share") of Capital Stock (par value $.50) of the Fund at a price
     equivalent to the net asset value of one share of the Fund as of the close
     of business on April 18, 1996.  The Fund hereby acknowledges receipt from
     Purchaser of funds in such amount in full payment for the Share.

2.   Purchaser represents and warrants to the Fund that the Shares are being
     acquired for investment and not with a view to distribution thereof, and
     that Purchaser has no present intention to redeem or dispose of the Share.


IN WITNESS WHEREOF, the parties have executed this agreement as of the 17th day
of April, 1996 ("Purchase Date").


                           SELIGMAN COMMON STOCK FUND, INC.



                           By:  /s/ Lawrence P. Vogel
                                ---------------------
                           Name:  Lawrence P. Vogel
                           Title: Vice President


                           J. & W. SELIGMAN & CO. INCORPORATED



                           By:  /s. Lawrence P. Vogel
                                ---------------------
                           Name:  Lawrence P. Vogel
                           Title: Senior Vice President

<PAGE>
 
          ADMINISTRATION, SHAREHOLDER SERVICES AND DISTRIBUTION PLAN
          ----------------------------------------------------------

          SECTION 1.  Seligman Common Stock Fund, Inc. (the "Fund") will pay
fees to Seligman Financial Services, Inc., the principal underwriter of its
shares (the "Distributor"), for administration, shareholder services and
distribution assistance for the Class A, Class B and Class D shares of the Fund.
As a result, the Fund is adopting this Administration, Shareholder Services and
Distribution Plan (the "Plan") pursuant to Section 12(b) of the Investment
Company Act of 1940, as amended (the "Act") and Rule 12b-1 thereunder.

          SECTION 2.  Pursuant to this Plan, the Fund may pay to the Distributor
a shareholder servicing fee of up to .25% on an annual basis of the average
daily net assets of the Fund (payable quarterly with respect to Class A and
monthly with respect to Class B and Class D) and a distribution fee of .75% on
an annual basis, payable monthly, of the average daily net assets of the Fund
attributable to the Class B Shares and a distribution fee of up to .75% on an
annual basis, payable monthly, of the average daily net assets of the Fund
attributable to Class D shares.  Such fees will be used in their entirety by the
Distributor to make payments for administration, shareholder services and
distribution assistance, including, but not limited to (i) compensation to
securities dealers and other organizations (each, a "Service Organization" and
collectively, the "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
the Distributor's costs incurred in connection with its marketing efforts with
respect to shares of the Fund.  To the extent a Service Organization provides
administration, accounting and other shareholder services, payment for which is
not required to be made pursuant to a plan meeting the requirements of Rule 12b-
1, a portion of the fee paid by the Fund shall be deemed to include compensation
for such services.  The fees received from the Fund hereunder in respect of the
Class A shares may not be used to pay any interest expense, carrying charges or
other financing costs, and fees received hereunder may not be used to pay any
allocation of overhead of the Distributor.  The fees of any particular class of
the Fund may not be used to subsidize the sale of shares of any other class.
The fees payable to Service Organizations from time to time shall, within such
limits, be determined by the  Directors of the Fund.

          SECTION 3.  J. & W. Seligman & Co. Incorporated, the Fund's investment
manager (the "Manager"), in its sole discretion, may make payments to the
Distributor for similar purposes.  These payments will be made by the Manager
from its own resources, which may include the management fee that the Manager
receives from the Fund.

          SECTION 4.  This Plan shall continue in effect through December 31 of
each year so long as such continuance is specifically approved at least annually
by vote of a majority of both (a) the Directors of the Fund and (b) the
Qualified Directors, cast in person at a meeting called for the purpose of
voting on such approval.

                                       1
<PAGE>
 
          SECTION 5.  The Distributor shall provide to the Fund's Directors, and
the Directors shall review, at least quarterly, a written report of the amounts
so expended and the purposes for which such expenditures were made.

          SECTION 6.  This Plan may be terminated by the Fund with respect to
any class at any time by vote of a majority of the Qualified Directors, or by
vote of a majority of the outstanding voting securities of such class.  If this
Plan is terminated in respect of a class, no amounts (other than amounts accrued
but not yet paid) would be owed by the Fund to the Distributor with respect to
such class.

          SECTION 7.  All agreements related to this Plan shall be in writing,
and shall be approved by vote of a majority of both (a) the Directors of the
Fund and (b) the Qualified Directors, cast in person at a meeting called for the
purpose of voting on such approval, provided, however, that the identity of a
particular Service Organization executing any such agreement may be ratified by
such a vote within 90 days of such execution.  Any agreement related to this
Plan shall provide:

     A.   That such agreement may be terminated in respect of any class of the
          Fund at any time, without payment of any penalty, by vote of a
          majority of the Qualified Directors or by vote of a majority of the
          outstanding voting securities of the class, on not more than 60 days'
          written notice to any other party to the agreement; and

     B.   That such agreement shall terminate automatically in the event of its
          assignment.

          SECTION 8.  This Plan may not be amended to increase materially the
amount of fees permitted pursuant to Section 2 hereof without the approval of a
majority of the outstanding voting securities of the relevant class and no
material amendment to this Plan shall be approved other than by vote of a
majority of both (a) the Directors of the Fund and (b) the Qualified Directors,
cast in person at a meeting called for the purpose of voting on such approval.
This Plan shall not be amended to reduce the distribution fee payable to the
Distributor pursuant to Section 2 hereof in respect of Class B shares, unless
the shareholder servicing fee payable pursuant to Section 2 hereof for
compensation to Service Organizations for providing administration, accounting
and other shareholder services has been eliminated, provided, however that the
distribution fee in respect of Class B shares may be reduced without change to
the shareholder servicing fee, if and to the extent required in order to comply
with any applicable laws or regulations, including applicable rules of the
National Association of Securities Dealers, Inc. regulating maximum sales
charges.

          SECTION 9.  The Fund is not obligated to pay any administration,
shareholder services or distribution expense in excess of the fee described in
Section 2 hereof, and, in the case of Class A shares, any expenses of
administration, shareholder services and distribution of Class A shares of the
Fund accrued in one fiscal year of the Fund may not be paid from administration,
shareholder services and distribution fees received from the Fund in respect of
Class A shares in any other fiscal year.

                                       2
<PAGE>
 
          SECTION 10.  As used in this Plan, (a) the terms "assignment",
"interested person" and "vote of a majority of the outstanding voting
securities" shall have the respective meanings specified in the Act and the
rules and regulations thereunder, subject to such exemptions as may be granted
by the Securities and Exchange Commission and (b) the term "Qualified Directors"
shall mean the Directors of the Fund who are not "interested persons" of the
Fund and have no direct or indirect financial interest in the operation of this
Plan or in any agreement related to this Plan.

                                       3
<PAGE>
 
                   ADMINISTRATION, SHAREHOLDER SERVICES AND
                            DISTRIBUTION AGREEMENT

ADMINISTRATION, SHAREHOLDER SERVICES AND DISTRIBUTION AGREEMENT, dated as of
________________, 19__ between Seligman Financial Services, Inc. ("Seligman
Financial Services") and _________________________ (the"Service Organization").

     The Parties hereto enter into a Administration, Shareholder Services and
Distribution Agreement ("Service Agreement") with respect to the shares of
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 High Income Fund Series, Seligman Income
Fund, Inc., Seligman New Jersey Tax-Exempt Fund, Inc., Seligman Pennsylvania
Tax-Exempt Fund Series, Seligman Tax-Exempt Fund Series, Inc., Seligman Tax-
Exempt Series Trust (the "Funds"), and any other future mutual funds that may
become members of the Seligman Group of Investment Companies which adopt an
Administration, Shareholder Services and Distribution Plan, pursuant to Rule
12b-1 under the Investment Company Act of 1940, as amended (the "Act"), and in
consideration of the mutual agreements herein made, agree as follows:

     The Service Organization shall make such use of or provide such information
and services as may be necessary or appropriate (i) to provide shareholder
services to shareholders of the Funds and (ii) to assist Seligman Financial
Services in any distribution of shares of the Funds, including, without
limitation, making use of the Service Organization's name, client lists, and
publications, for the solicitation of sales of shares of the Funds to Service
Organization clients, and such other assistance as Seligman Financial Services
reasonably requests, to the extent permitted by applicable statute, rule or
regulation.

1.   Except with respect to the Class D shares of a Fund for the first year
     following the sale thereof, Seligman Financial Services shall pay to the
     Service Organization a service fee (as defined in the National Association
     of Securities Dealers, Inc. Rules of Fair Practice) not to exceed .25 of 1%
     per annum of the average daily net assets of each class of shares of each
     Fund attributable to the clients of the Service Organization.

2.   With respect to the first year following the sale of Class D shares of a
     Fund, Seligman Financial Services shall pay to the Service Organization at
     or promptly after the time of sale a service fee (as defined in the
     National Association of Securities Dealers, Inc. Rules of Fair Practice)
     not to exceed .25 of 1% of the net asset value of the Class D shares sold
     by the Service Organization.  Such service fee shall be paid to the Service
     Organization solely for personal services and/or the maintenance of
     shareholder accounts to be provided by the Service Organization to the
     purchaser of such Class D Shares over the course of the first year
     following the sale.

3.   Any service fee paid hereunder shall be paid solely for personal services
     and/or the maintenance of shareholder accounts. For greater certainty, no
     part of a service fee shall be paid for subtransfer agency services,
     subaccounting services, or administrative services.
<PAGE>
 
4.   In addition to payment of the service fee, from time to time Seligman
     Financial Services may make payments to the Service Organization in
     addition to those contemplated above for providing distribution assistance
     with respect to assets invested in each Fund by its clients.

5.   Neither the Service Organization nor any of its employees or agents are
     authorized to make any representation concerning the Funds or the Funds'
     shares except those contained in the then current Prospectus, copies of
     which will be supplied by Seligman Financial Services.  The Service
     Organization shall have no authority to act as agent for Seligman Financial
     Services or the Funds.

6.   In consideration of the services provided pursuant to paragraphs 1, 2
     and/or 4 above, the Service Organization shall be entitled to receive fees
     as are set forth in Exhibit A hereto as may be amended from time to time by
     Seligman Financial Services.  Seligman Financial Services has no obligation
     to make any such payments and the Service Organization agrees to waive
     payment of its fee until Seligman Financial Services is in receipt of the
     fee from the Fund(s).  The payment of fees has been authorized pursuant to
     an Administration, Shareholder Services and Distribution Plans (the
     "Plans") approved by the Directors/Trustees and the shareholders of the
     Funds pursuant to the requirements of the Act and such authorizations may
     be withdrawn at any time.

7.   It is understood that the Funds reserve the right, at their discretion and
     without notice, to suspend or withdraw the sale of shares of the Funds.
     This Agreement shall not be construed to authorize the Service Organization
     to perform any act that Seligman Financial Services would not be permitted
     to perform under the respective Distributing Agreements between each of the
     Funds and Seligman Financial Services.

8.   Subject to the proviso in Section 6 of the Plans, this Agreement shall
     continue until December 31 of the year in which any Plan has first been
     approved by shareholders and through December 31 of each year thereafter
     provided such continuance is specifically approved at least annually by a
     vote of a majority of (i) the Fund's Directors/Trustees and (ii) the
     Qualified Directors/Trustees cast in person at a meeting called for the
     purpose of voting on such approval and provided further that the Service
     Organization shall not have notified Seligman Financial Services in writing
     at least 60 days prior to the anniversary date of the previous continuance
     that it does not desire such continuance.  This Agreement may be terminated
     at any time without payment of any penalty with respect to any of the Funds
     by vote of a majority of the Qualified Directors/Trustees, or by vote of a
     majority of the outstanding voting securities of the particular Fund or
     class or series of a Fund, on 60 days' written notice to the Service
     Organization and Seligman Financial Services.  Notwithstanding anything
     contained herein, in the event that any of the Plans shall be terminated or
     any of the Plans or any part thereof shall be found invalid or ordered
     terminated by any regulatory or judicial authority, or the Service
     Organization shall fail to perform the services contemplated by this
     Agreement, such determination to be made in good faith by Seligman
     Financial Services, this Agreement may be terminated with respect to such
     Plan effective upon receipt of written notice thereof by the Service
     Organization.  This Agreement will also terminate automatically in the
     event of its assignment.
<PAGE>
 
9.   All communications to Seligman Financial Services shall be sent to it at
     its offices, 100 Park Avenue, New York, New York 10017.

     Any notice to the Service Organization shall be duly given if mailed or
     telegraphed to it at the address shown below.

10.  As used in this Agreement, the terms "assignment", "interested person" and
     "vote of a majority of the outstanding voting securities" shall have the
     respective meanings specified in the Act and in the rules and regulations
     thereunder and the term "Qualified Directors/Trustees" shall mean the
     Directors/Trustees of a Fund who are not interested persons of the Fund and
     have no direct or indirect financial interest in its Plan or in any
     agreements related to the Plan.

11.  This Agreement shall be governed by and construed in accordance with the
     laws of the State of New York.  Anything herein to the contrary
     notwithstanding, this Agreement shall not be construed to require, or to
     impose any duty upon, any of the parties to do anything in violation of any
     applicable laws or regulations.

IN WITNESS WHEREOF, Seligman Financial Services and the Service Organization
have caused this Agreement to be executed by their duly authorized offices as of
the date first above written.


                                               SELIGMAN FINANCIAL SERVICES, INC.


                                               By_______________________________
                                                  Stephen J. Hodgdon, President


                                                     SERVICE ORGANIZATION



                                               _________________________________


                                               By_______________________________


                                               Address__________________________


                                               _________________________________
<PAGE>
 
                   ADMINISTRATION, SHAREHOLDER SERVICES AND
                            DISTRIBUTION AGREEMENT

                                   EXHIBIT A
The payment schedule for Service Organizations is set forth immediately below:

<TABLE>
<CAPTION>
                                                             AVERAGE DAILY         FEES AS A PERCENTAGE
                                                              NET ASSETS          OF EACH FUND'S/SERIES'
                                                            ATTRIBUTABLE TO       NET ASSETS ATTRIBUTABLE
FUND NAME                                                SERVICE ORGANIZATIONS   TO SERVICE ORGANIZATIONS*
- ---------                                                ---------------------   ------------------------
                                                            CLASS A SHARES      CLASS A SHARES/     CLASS D
                                                            --------------      --------------
                                                                                CLASS B SHARES+      SHARES**       
                                                                                ---------------      --------      
<S>                                                      <C>                    <C>                  <C>           
Seligman Capital Fund, Inc.                                $100,000 or more          .25%             1.00%        
Seligman Cash Management Fund, Inc:                        $100,000 or more      -0-/.25%             1.00%        
Seligman Common Stock Fund, Inc.                           $100,000 or more          .25%             1.00%        
Seligman Communications and Information Fund, Inc.         $100,000 or more          .25%             1.00%        
Seligman Frontier Fund, Inc.                               $100,000 or more          .25%             1.00%        
Seligman Growth Fund, Inc.                                 $100,000 or more          .25%             1.00%        
Seligman Henderson Global Fund Series, Inc:                                                                        
  Seligman Henderson Emerging Markets Growth Fund          $100,000 or more          .25%             1.00%        
  Seligman Henderson Global Smaller Companies Fund         $100,000 or more          .25%             1.00%        
  Seligman Henderson Global Growth Opportunities Fund      $100,000 or more          .25%             1.00%        
  Seligman Henderson Global Technology Fund                $100,000 or more          .25%             1.00%        
  Seligman Henderson International Fund                    $100,000 or more          .25%             1.00%        
Seligman High Income Fund Series:                                                                                  
  U.S. Government Securities Portfolio                     $100,000 or more          .25%             1.00%        
  High-Yield Bond Portfolio                                $100,000 or more          .25%             1.00%        
Seligman Income Fund, Inc.                                 $100,000 or more          .25%             1.00%        
Seligman New Jersey Tax-Exempt Fund, Inc.                  $100,000 or more          .25%             1.00%        
Seligman Pennsylvania Tax-Exempt Fund Series               $100,000 or more          .25%             1.00%        
Seligman Tax-Exempt Fund Series, Inc:                                                                              
   National Series                                         $100,000 or more          .10%             1.00%        
   Colorado Series                                         $100,000 or more          .10%             1.00%        
   Georgia Series                                          $100,000 or more          .10%             1.00%        
   Louisiana Series                                        $100,000 or more          .10%             1.00%        
   Maryland Series                                         $100,000 or more          .10%             1.00%        
   Massachusetts Series                                    $100,000 or more          .10%             1.00%        
   Michigan Series                                         $100,000 or more          .10%             1.00%        
   Minnesota Series                                        $100,000 or more          .10%             1.00%        
   Missouri Series                                         $100,000 or more          .10%             1.00%        
   New York Series                                         $100,000 or more          .10%             1.00%        
   Ohio Series                                             $100,000 or more          .10%             1.00%        
   Oregon Series                                           $100,000 or more          .10%             1.00%        
   South Carolina Series                                   $100,000 or more          .10%             1.00%        
Seligman Tax-Exempt Series Trust:                                                                                  
  California Tax-Exempt Quality Series                     $100,000 or more          .10%             1.00%        
  California Tax-Exempt High-Yield Series                  $100,000 or more          .10%             1.00%        
  Florida Tax-Exempt Series                                $100,000 or more          .25%             1.00%        
  North Carolina Tax-Exempt Series                         $100,000 or more          .25%             1.00%         
</TABLE>

March 21, 1996

* Included in each of the percentages above is the service fee (as defined in
the National Association of Securities Dealers, Inc. Rules of Fair Practice)
with respect to each class of shares referred to in paragraph 1 of this
Agreement.  Except as provided in Footnote ** below, Seligman Financial Services
shall pay the fees provided for above to the Service Organization quarterly.
** At or promptly after the time of sale of any Class D Shares, a Service
Organization shall be paid 1.00% of the net asset value of the Class D Shares
sold by it. The difference between .75% and the amount paid is comprised of the
service fee referred to in paragraph 1 of this Agreement for services to be
provided to Class D shareholders over the course of the one year period
immediately following the sale.
+ Class B Shares are not available for the U.S. Government Securities Portfolio
of Seligman High Income Fund Series, Selligman New Jersey Tax-Exempt Fund, Inc.,
Seligman Pennsylvania Tax-Exempt Fund Series or any Series of Seligman Tax-
Exempt Fund Series, Inc. or Seligman Tax-Exempt Series Trust.

<PAGE>
 
                        SELIGMAN GROUP OF MUTUAL FUNDS

              Plan for Multiple Classes of Shares (three classes)
              --------------------------------------------------


          THIS PLAN, as it may be amended from time to time, sets forth the
separate arrangement and expense allocation of each class of shares (a "Class")
of each registered open-end management investment company, or series thereof, in
the Seligman Group of Mutual Funds that offers multiple classes of shares (each,
a "Fund").  The Plan has been adopted pursuant to Rule 18f-3(d) under the
Investment Company Act of 1940, as amended (the "Act"), by a majority of the
Board of Directors or Trustees, as applicable ("Directors"), of each Fund listed
on Schedule I hereto, including a majority of the Directors who are not
interested persons of such Fund within the meaning of Section 2(a)(19) of the
Act ("Disinterested Directors").  Any material amendment to this Plan is subject
to the prior approval of the Board of Directors of each Fund to which it
relates, including a majority of the Disinterested Directors.

1.  General
    -------

     A.   Any Fund may issue more than one Class of voting stock, provided that
          each Class:

          i.   Shall have a different arrangement for shareholder services or
               the distribution of securities or both, and shall pay all of the
               expenses of that arrangement;

          ii.  May pay a different share of other expenses, not including
               advisory or custodial fees or other expenses related to the
               management of the Fund's assets, if these expenses are actually
               incurred in a different amount by that Class, or if the Class
               receives services of a different kind or to a different degree
               than other Classes of the same Fund ("Class Level Expenses");

          iii. May pay a different advisory fee to the extent that any
               difference in amount paid is the result of the application of the
               same performance fee provisions in the advisory contract of the
               Fund to the different investment performance of each Class;

          iv.  Shall have exclusive voting rights on any matter submitted to
               shareholders that relates solely to its arrangement;

                                      -1-
<PAGE>
 
          v.   Shall have separate voting rights on any matter submitted to
               shareholders in which the interests of one Class differ from the
               interests of any other Class; and

          vi.  Shall have in all other respects the same rights and obligations
               as each other Class of the Fund.

     B.   i.   Except as expressly contemplated by this paragraph B., no types
               or categories of expenses shall be designated Class Level
               Expenses.

          ii.  The Directors recognize that certain expenses arising in certain
               sorts of unusual situations are properly attributable solely to
               one Class and therefore should be borne by that Class.  These
               expenses ("Special Expenses") may include, for example: (i) the
               costs of preparing a proxy statement for, and holding, a special
               meeting of shareholders to vote on a matter affecting only one
               Class; (ii) the costs of holding a special meeting of Directors
               to consider such a matter; (iii) the costs of preparing a special
               report relating exclusively to shareholders of one Class; and
               (iv) the costs of litigation affecting one Class exclusively.  J.
               & W. Seligman & Co. Incorporated (the "Manager") shall be
               responsible for identifying expenses that are potential Special
               Expenses.

          iii. Subject to clause iv. below, any Special Expense identified by
               the Manager shall be treated as a Class Level Expense.

          iv.  Any Special Expense identified by the Manager that is material to
               the Class in respect of which it is incurred shall be submitted
               by the Manager to the Directors of the relevant Fund on a case by
               case basis with a recommendation by the Manager as to whether it
               should be treated as a Class Level Expense.  If approved by the
               Directors, such Special Expense shall be treated as a Class Level
               Expense of the affected class.

     C.   i.   Realized and unrealized capital gains and losses of a Fund shall
               be allocated to each class of that Fund on the basis of the
               aggregate net asset value of all outstanding shares ("Record
               Shares") of the Class in relation to the aggregate net asset
               value of Record Shares of the Fund.

                                      -2-
<PAGE>
 
          ii.  Income and expenses of a Fund not charged directly to a
               particular Class shall be allocated to each Class of that Fund on
               the following basis:

               a.   For periodic dividend funds, on the basis of the aggregate
                    net asset value of Record Shares of each Class in relation
                    to the aggregate net asset value of Record Shares of the
                    Fund.

               b.   For daily dividend funds, on the basis of the aggregate net
                    asset value of Settled Shares of each Class in relation to
                    the aggregate net asset value of Settled Shares of the Fund.
                    "Settled Shares" means Record Shares minus the number of
                    shares of that Class or Fund that have been issued but for
                    which payment has not cleared and plus the number of shares
                    of that Class or Fund which have been redeemed but for which
                    payment has not yet been issued.

     D.   On an ongoing basis, the Directors, pursuant to their fiduciary
          responsibilities under the Act and otherwise, will monitor each Fund
          for the existence of any material conflicts among the interests of its
          several Classes.  The Directors, including a majority of the
          Disinterested Directors, shall take such action as is reasonably
          necessary to eliminate any such conflicts that may develop.  The
          Manager and Seligman Financial Services, Inc. (the "Distributor") will
          be responsible for reporting any potential or existing conflicts to
          the Directors.  If a conflict arises, the Manager and the Distributor
          will be responsible at their own expense for remedying such conflict
          by appropriate steps up to and including separating the classes in
          conflict by establishing a new registered management company to
          operate one of the classes.

     E.   The plan of each Fund adopted pursuant to Rule 12b-1 under the Act
          (the "Rule 12b-1 Plan") provides that the Directors will receive
          quarterly and annual statements complying with paragraph (b)(3)(ii) of
          Rule 12b-1, as it may be amended from time to time.  To the extent
          that the Rule 12b-1 Plan in respect of a specific Class is a
          reimbursement plan, then only distribution expenditures properly
          attributable to the sale of shares of that Class will be used in the
          statements to support the Rule 12b-1 fee charged to shareholders of
          such Class.  In such cases expenditures not related to the sale of a
          specific Class will not be presented to the Directors to support Rule
          12b-1 fees charged to shareholders of such Class.  The statements,
          including the allocations upon which they are based, will be subject
          to the review of the Disinterested Directors.

                                      -3-
<PAGE>
 
     F.   Dividends paid by a Fund with respect to each Class, to the extent any
          dividends are paid, will be calculated in the same manner, at the same
          time and on the same day and will be in the same amount, except that
          fee payments made under the Rule 12b-1 Plan relating to the Classes
          will be borne exclusively by each Class and except that any Class
          Level Expenses shall be borne by the applicable Class.

     G.   The Directors of each Fund hereby instruct such Fund's independent
          auditors to review expense allocations each year as part of their
          regular audit process, to inform the Directors and the Manager of any
          irregularities detected and, if specifically requested by the
          Directors, to prepare a written report thereon.  In addition, if any
          Special Expense is incurred by a Fund and is classified as a Class
          Level Expense in the manner contemplated by paragraph B. above, the
          independent auditors for such Fund, in addition to reviewing such
          allocation, are hereby instructed to report thereon to the Audit
          Committee of the relevant Fund and to the Manager.  The Manager will
          be responsible for taking such steps as are necessary to remedy any
          irregularities so detected, and will do so at its own expense to the
          extent such irregularities should reasonably have been detected and
          prevented by the Manager in the performance of its services to the
          Fund.


2.   Specific Arrangements for Each Class
     ------------------------------------

          The following arrangements regarding shareholder services, expense
allocation and other indicated matters shall be in effect with respect to the
Class A shares, Class B shares and Class D shares of each Fund.  The following
descriptions are qualified by reference to the more detailed description of such
arrangements set forth in the prospectus relating to each Fund, as the same may
from time to time be amended or supplemented (for each Fund, the "Relevant
Prospectus"), provided that no Relevant Prospectus may modify the provisions of
              --------                                                         
this Plan applicable to Rule 12b-1 fees or Class Level Expenses.

(a)  Class A Shares
     --------------

          i.   Class A shares are subject to an initial sales load which varies
               with the size of the purchase, to a maximum of 4.75% of the
               public offering price.  Reduced sales loads shall apply in
               certain circumstances.  Class A shares of Seligman Cash
               Management Fund, Inc. shall not be subject to an initial sales
               load.

                                      -4-
<PAGE>
 
          ii.  Class A shares shall be subject to a Rule 12b-1 service fee of up
               to 0.25% of average daily net assets.

          iii. Special Expenses attributable to the Class A shares, except those
               determined by the Directors not to be Class Level Expenses of the
               Class A shares in accordance with paragraph 1.B.iv., shall be
               Class Level Expenses and attributed solely to the Class A shares.
               No other expenses shall be treated as Class Level Expenses of the
               Class A shares.

          iv.  The Class A shares shall be entitled to the shareholder services,
               including exchange privileges, described in the Relevant
               Prospectus.

(b)  Class B Shares
     --------------

          i.   Class B shares are sold without an initial sales load but are
               subject to a contingent deferred sales load ("CDSL") in certain
               cases.  The CDSL in respect of any Class B share, if applicable,
               will be in the following amount (as a percentage of the current
               net asset value or the original purchase price, whichever is
               less) if the redemption occurs within the indicated number of
               years of issuance of such share:

<TABLE> 
<CAPTION> 
                 Years since issuance                   CDSL
                 --------------------                   ----
                 <S>                                    <C> 
                     less than one                       5%
                     one but less than two               4%
                     two but less than four              3%
                     four but less than five             2%
                     five but less than six              1%
                     six or more                         0%
</TABLE> 

          ii.  Class B shares shall be subject to a Rule 12b-1 fee of up to
               1.00% of average daily net assets, consisting of an asset-based
               distribution fee of up to 0.75% and a service fee of up to 0.25%.

          iii. Each Class B share shall automatically convert to a Class A share
               on the last day of the month which precedes the eighth
               anniversary of its date of issue occurs.

          iv.  Special Expenses attributable to the Class B shares, except those
               determined by the Directors not to be Class Level Expenses of the
               Class B shares in accordance with paragraph 1.B.iv., shall be

                                      -5-
<PAGE>
 
               Class Level Expenses and attributed solely to the Class B shares.
               No other expenses shall be treated as Class Level Expenses of the
               Class B shares.

          v.   The Class B shares shall be entitled to the shareholder services,
               including exchange privileges, described in the Relevant
               Prospectus.

(c)  Class D Shares
     --------------

          i.   Class D shares are sold without an initial sales load but are
               subject to a CDSL of 1% of the lesser of the current net asset
               value or the original purchase price in certain cases if the
               shares are redeemed within one year.

          ii.  Class D shares shall be subject to a Rule 12b-1 fee of up to
               1.00% of average daily net assets, consisting of an asset-based
               distribution fee of up to 0.75% and a service fee of up to 0.25%.

          iii. Special Expenses attributable to the Class D shares, except those
               determined by the Directors not to be Class Level Expenses of the
               Class D shares in accordance with paragraph 1.B.iv., shall be
               Class Level Expenses and attributed solely to the Class D shares.
               No other expenses shall be treated as Class Level Expenses of the
               Class D shares.

          iv.  The Class D shares shall be entitled to the shareholder services,
               including exchange privileges, described in the Relevant
               Prospectus.

                                      -6-
<PAGE>
 
                                  SCHEDULE I


Seligman Cash Management Fund, Inc.
Seligman Capital Fund, Inc.
Seligman Common Stock, Inc.
Seligman Communications and Information Fund, Inc.
Seligman Frontier Fund, Inc.
Seligman Growth Fund, Inc.
Seligman Income Fund, Inc.
Seligman Henderson Emerging Markets Growth Fund
Seligman Henderson Global Growth Opportunities Fund
Seligman Henderson Global Smaller Companies Fund
Seligman Henderson Global Technology Fund
Seligman Henderson International Fund
Seligman High-Yield Bond Fund

                                      -7-


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