PIONEER THREE
485BPOS, 1996-02-01
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                                                               File Nos. 2-79140
                                                                        811-3564

   
      As Filed with The Securities and Exchange Commission February 1, 1996
    

                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549
                                    FORM N-1A
                                      -----
         REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933       /_X__/
                                                                               
                    Pre-Effective Amendment No. ___                    /____/
                                                                               
   
                    Post-Effective Amendment No. 21                    /_X__/
    

                                     and/or

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

   
                    Amendment No. 21                                   /_X _/
    
                    
                        (Check appropriate box or boxes)

   
                              PIONEER MID-CAP FUND
                            (FORMERLY, PIONEER THREE)
               (Exact name of registrant as specified in charter)
    

                  60 State Street, Boston, Massachusetts 02109
                (Address of principal executive office) Zip Code

       Registrant's Telephone Number, including Area Code: (617) 742-7825

        Joseph P. Barri, Hale and Dorr, 60 State Street, Boston, MA 02109
                     (Name and address of agent for service)

It is proposed that this filing will become effective:

   
_X_ immediately upon filing pursuant to paragraph (b) of Rule 485
    

Registrant  has  registered  an  indefinite   amount  of  securities  under  the
Securities Act of 1933 pursuant to Section 24(f) of the  Investment  Company Act
of 1940.  Registrant  filed a Rule  24f-2  Notice  for its  fiscal  year  ending
September 30, 1995 on November 29, 1995.

   
                       CALCULATION OF REGISTRATION FEE

Title of       Amount of       Proposed        Proposed         Amount of
Securities      Shares          Maximum         Maximum        Registration
Being           Being           Offering       Aggregate           Fee
Registered    Registered      Fee Per Unit   Offering Price

Shares        694,726.00         $20.05       $13,929,256        $100.00
    

<PAGE>

   
This  calculation  has been made  pursuant  to Rule 24e-2  under the  Investment
Company  Act of 1940.  During its fiscal  year ended  September  30,  1995,  the
Registrant  redeemed or repurchased  8,669,269 shares of beneficial  interest of
which 7,989,006 shares of beneficial interest were utilized by the Registrant on
its Rule 24f-2 Notice  filed on November  29,  1995,  and 680,263 are being used
herein for  purposes of  reducing  the filing fee  payable  herewith  under Rule
24e-2.  An additional  14,463 shares being  registered  hereby are valued at the
public offering price of $20.05 as of January 24, 1996.

This  Post-Effective  Amendment No. 21 to the Registration  Statement of Pioneer
Three, a  Massachusetts  business trust (the  "Massachusetts  Trust"),  is being
filed by Pioneer Mid-Cap Fund, a Delaware business trust (the "Delaware Trust"),
pursuant  to Rule  414(d) and Rule 485(b)  under the  Securities  Act of 1933 as
amended,  for the  purpose of the  Delaware  trust  adopting  the  Massachusetts
Trust's Registration Statement on Form N-1A. This Post-Effective  Amendment will
become  effective  at the start of business  on  February 1, 1996,  which is the
first business date that the Massachusetts  Trust is reorganized as the Delaware
Trust. The  reorganization was approved by the shareholders of the Massachusetts
Trust at a meeting held on January 23, 1996.

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

                       ADOPTION OF REGISTRATION STATEMENT

The Delaware Trust hereby affirmatively adopts the Registration  Statement (File
Nos. 2-79140 and 811-3564) of the Massachusetts Trust.
    

<PAGE>

                              PIONEER MID-CAP FUND

        Cross-Reference Sheet Showing Location in Prospectus and Statemen
           of Additional Information of Information Required by Items
                            of the Registration Form


                                                       Location in
                                                       Prospectus or
                                                       Statement of
                                                       Additional
Form N-1A Item Number and Caption                      Information


1.    Cover Page.......................................Prospectus - Cover Page

2.    Synopsis.........................................Prospectus - Expense
                                                       Information

3.    Condensed Financial Information..................Not Applicable

   
4.    General Description of Registrant................Prospectus - Investment
                                                       Objective and Policies;
                                                       Management of the Fund;
                                                       Fund Share Alternatives;
                                                       Share Price; How to Buy
                                                       Fund Shares; How to Sell
                                                       Fund Shares; How to
                                                       Exchange Fund Shares; The
                                                       Fund
    

5.    Management of the Fund...........................Prospectus - Management
                                                       of the Fund

   
6.    Capital Stock and Other Securities...............Prospectus - Investment
                                                       Objective and Policies;
                                                       Management of the Fund;
                                                       Fund Share Alternatives;
                                                       Share Price; How to Buy
                                                       Fund Shares; How to Sell
                                                       Fund Shares; How to
                                                       Exchange Fund Shares;
                                                       Dividends, Distributions
                                                       and Taxation; The Fund
<PAGE>

7.    Purchase of Securities Being
        Offered........................................Prospectus - Fund Share
                                                       Alternatives; Share
                                                       Price; How to Buy Fund
                                                       Shares; How to Sell Fund
                                                       Shares; How to Exchange
                                                       Fund Shares; Distribution
                                                       Plans; Shareholder
                                                       Services; The Fund

8.    Redemption or Repurchase.........................Prospectus - Fund Share
                                                       Alternatives; Share
                                                       Price; How to Buy Fund
                                                       Shares; How to Sell Fund
                                                       Shares; How to Exchange
                                                       Fund Shares; Shareholder
                                                       Services; The Fund
    

9.    Pending Legal Proceedings........................Not Applicable


10.   Cover Page.......................................Statement of Additional
                                                       Information - Cover Page

11.   Table of Contents................................Statement of Additional
                                                       Information - Cover Page

   
12.   General Information and History..................Statement of Additional
                                                       Information - Description
                                                       of Shares
    

13.   Investment Objectives and Policies...............Statement of Additional
                                                       Information - Investment
                                                       Policies and Restrictions

14.   Management of the Fund...........................Statement of Additional
                                                       Information - Management
                                                       of the Fund; Investment
                                                       Adviser

                                      -2-
<PAGE>

15.   Control Persons and Principle Holders
           of Securities...............................Statement of Additional
                                                       Information - Management
                                                       of the Fund

   
16.   Investment Advisory and Other
           Services....................................Statement of Additional
                                                       Information - Management
                                                       of the Fund; Investment
                                                       Adviser; Underwriting
                                                       Agreement and
                                                       Distribution Plans;
                                                       Shareholder
                                                       Servicing/Transfer Agent;
                                                       Custodian; Principal
                                                       Underwriter; Independent
                                                       Public Accountants
    

17.   Brokerage Allocation and Other
           Practices...................................Statement of Additional
                                                       Information - Portfolio
                                                       Transactions

   
18.   Capital Stock and Other Securities...............Statement of Additional
                                                       Information - Description
                                                       of Shares
    

19.   Purchase, Redemption and Pricing of
           Securities Being Offered....................Statement of Additional
                                                       Information - Letter of
                                                       Intention; Systematic
                                                       Withdrawal Plan;
                                                       Determination of Net
                                                       Asset Value

   
20.   Tax Status.......................................Statement of Additional
                                                       Information - Tax Status
                                                       and Dividends

                                      -3-
<PAGE>

21.   Underwriters.....................................Statement of Additional
                                                       Information -
                                                       Underwriting Agreement
                                                       and Distribution Plans;
                                                       Principal Underwriter
    

22.   Calculation of Performance Data..................Statement of Additional
                                                       Information - Investment
                                                       Results

   
23.   Financial Statements.............................Financial Statements
    



                                      -4-


<PAGE>

                                                              PIONEER LOGO 
Pioneer Mid-Cap Fund 
Class A, Class B and Class C Shares 
Prospectus 
February 1, 1996 

  Pioneer Mid-Cap Fund (the "Fund") seeks capital growth by investing in a 
diversified portfolio of securities consisting primarily of common stocks. 
Any current income generated from these securities is incidental to the 
investment objective of the Fund. 

   
  In order to achieve its investment objective, the Fund will invest at least 
65% of its total assets in common stocks and common stock equivalents (such 
as convertible bonds and preferred stock) of companies with a market 
capitalization between $100 million and $5 billion ("Mid-Cap Companies"). The 
Fund may invest a portion of its assets in foreign securities. See 
"Investment Objective and Policies" in this Prospectus. There is, of course, 
no assurance that the Fund will achieve its investment objective. 
    

   
  Fund returns and share prices fluctuate and the value of your account upon 
redemption may be more or less than your purchase price. Shares in the Fund 
are not deposits or obligations of, or guaranteed or endorsed by, any bank or 
other depository institution, and the shares are not federally insured by the 
Federal Deposit Insurance Corporation, the Federal Reserve Board or any other 
government agency. Investments in the securities of mid-cap companies may 
offer greater capital appreciation potential than investments in 
large-capitalization company securities, but may be subject to greater 
short-term price fluctuations. The Fund is intended for investors who can 
accept the risks associated with its investments and may not be suitable for 
all investors. See "Investment Objective and Policies and Associated Risks" 
for a discussion of these risks. 
    

  This Prospectus (Part A of the Registration Statement) provides information 
about the Fund that you should know before investing. Please read and retain 
it for your future reference. More information about the Fund is included in 
Part B, the Statement of Additional Information, also dated February 1, 1996, 
which is incorporated into this Prospectus by reference. A copy of the 
Statement of Additional Information may be obtained free of charge by calling 
Shareowner Services at 1-800-225-6292 or by written request to the Fund at 60 
State Street, Boston, Massachusetts 02109. Additional information about the 
Fund has been filed with the Securities and Exchange Commission (the "SEC") 
and is available upon request and without charge. 

<TABLE>
<CAPTION>
           TABLE OF CONTENTS                                     PAGE 
- ---------   -------------------------------------------------- -------- 
<S>         <C>                                                  <C>
I.          EXPENSE INFORMATION                                    2 
II.         FINANCIAL HIGHLIGHTS                                   3 
III.        INVESTMENT OBJECTIVE AND POLICIES AND ASSOCIATED 
            RISKS                                                  3 
IV.         MANAGEMENT OF THE FUND                                 4 
V.          FUND SHARE ALTERNATIVES                                6 
VI.         SHARE PRICE                                            6 
VII.        HOW TO BUY FUND SHARES                                 6 
             Class A Shares                                        7 
             Class B Shares                                        8 
             Class C Shares                                        8 
VIII.       HOW TO SELL FUND SHARES                               10 
IX.         HOW TO EXCHANGE FUND SHARES                           11 
X.          DISTRIBUTION PLANS                                    11 
XI.         DIVIDENDS, DISTRIBUTIONS AND TAXATION                 12 
XII.        SHAREOWNER SERVICES                                   13 
             Account and Confirmation Statements                  13 
             Additional Investments                               13 
             Automatic Investment Plans                           13 
             Financial Reports and Tax Information                13 
             Distribution Options                                 13 
             Directed Dividends                                   13 
             Direct Deposit                                       13 
             Voluntary Tax Withholding                            13 
             Telephone Transactions and Related Liabilities       13 
             FactFone(SM)                                         14 
             Retirement Plans                                     14 
             Telecommunications Device for the Deaf (TDD)         14 
             Systematic Withdrawal Plans                          14 
             Reinstatement Privilege (Class A Only)               14 
XIII.       THE FUND                                              15 
XIV.        INVESTMENT RESULTS                                    15 
</TABLE>

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

<PAGE>
 
I. EXPENSE INFORMATION 

   
   The table is designed to help you understand the charges and expenses that 
you, as a shareholder, will bear directly or indirectly when you invest in 
the Fund. The information in the table is an estimate based on actual 
expenses for Class A shares for the year ended September 30, 1995. No Class B 
or C shares were outstanding during such period. Management fees for Class A 
shares have been restated to reflect (and management fees for Class B and 
Class C shares reflect) the maximum, basic and minimum fees payable to 
Pioneering Management Corporation ("PMC") under the most recently approved 
management contract. See "Management of the Fund." Actual management fees and 
total operating expenses with respect to Class A shares for the fiscal year 
ended September 30, 1995 were 0.46% and 0.85%, respectively, under a 
management contract previously in effect. 
    

<TABLE>
<CAPTION>
 Shareowner Transaction Expenses:                    Class A    Class B(+)   Class C(+) 
<S>                                                 <C>             <C>           <C>
 Maximum Initial Sales Charge on Purchases 
   (as a percentage of offering price)               5.75%(1)      None        None 
 Maximum Sales Charge on Reinvestment 
   of Dividends                                      None          None        None 
 Maximum Deferred Sales Charge                       None(1)       4.00%       1.00% 
  (as a percentage of original purchase price 
   or redemption proceeds, as applicable) 
 Redemption Fee(2)                                   None             None     None 
 Exchange Fee                                        None             None     None 
Annual Fund Operating Expenses (As a Percentage 
  of Average Net Assets): 
                                                              Management Fee(3) 
                                                     ----------------------------------- 
Class A                                               Basic       Maximum      Minimum 
 Management Fee                                       .625          .825         .425 
 12b-1 Fees                                            .18           .18          .18 
 Other Expenses (including accounting and  
   transfer agent fees, custodian fees and 
   printing expenses)                                  .21           .21          .21 
                                                    ---------   ----------    ---------- 
Total Operating Expenses                              1.02          1.22          .82 
                                                    =========   ==========    ========== 
Class B 
 Management Fee                                       .625          .825         .425 
 12b-1 Fees                                           1.00          1.00         1.00 
 Other Expenses (including accounting and 
   transfer agent fees, custodian fees and 
   printing expenses)                                  .21           .21          .21 
                                                    ---------   ----------    ---------- 
Total Operating Expenses                              1.84          2.04         1.64 
                                                    =========   ==========    ========== 
Class C 
 Management Fee                                       .625          .825         .425 
 12b-1 Fees                                           1.00          1.00         1.00 
 Other Expenses (including accounting and 
   transfer agent fees, custodian fees and 
   printing expenses)                                  .21           .21          .21 
                                                    ---------   ----------    ---------- 
Total Operating Expenses                              1.84          2.04         1.64 
                                                    =========   ==========    ========== 
</TABLE>

   
(+) Class B and Class C shares will first be offered on February 1, 1996. 
(1) Purchases of $1,000,000 or more and purchases by participants in certain 
    group plans are not subject to an initial sales charge but may be subject 
    to a contingent deferred sales charge as further described under "How to 
    Sell Fund Shares." 
(2) Separate fees (currently $10 and $20, respectively) apply to domestic and 
    international wire transfers of redemption proceeds. 
(3) The management fee paid to Pioneering Management Corporation ("PMC") 
    consists of a basic fee of 0.625 of average net assets and a performance 
    adjustment. The actual rate paid to PMC may be higher or lower than the 
    basic fee. See "Management of the Fund" for additional information about 
    the fee calculation. 
 Example: 
   You would pay the following fees and expenses on a $1,000 investment, 
assuming a 5% annual return and redemption at the end of each time period: 
<TABLE>
<CAPTION>
                              1 Year   3 Years   5 Years   10 Years 
                              -------  --------  -------- ---------- 
<S>                           <C>      <C>       <C>      <C>
Class A Shares 
 Management Fee 
  Basic                        $10       $30      $ 52       $116 
  Maximum                      $11       $35      $ 61       $135 
  Minimum                      $ 8       $24      $ 42       $ 94 
Class B Shares* 
- --Assuming complete 
  redemption at end of 
  period Management Fee 
 Basic                         $59       $88      $119       $215 
 Maximum                       $61       $94      $130       $237 
 Minimum                       $57       $82      $109       $193 
- --Assuming no redemption 
  Management Fee 
 Basic                         $19       $58      $ 99       $215 
 Maximum                       $21       $64      $110       $237 
 Minimum                       $17       $52      $ 89       $193 
Class C Shares 
- --Assuming complete 
  redemption at end of 
  period Management Fee 
 Basic                         $29       $58      $ 99       $215 
 Maximum                       $31       $64      $110       $237 
 Minimum                       $27       $52      $ 89       $193 
- --Assuming no redemption 
  Management Fee 
 Basic                         $19       $58      $ 99       $215 
 Maximum                       $21       $64      $110       $237 
 Minimum                       $17       $52      $ 89       $193 
</TABLE>
    

* Class B shares convert to Class A shares eight years after purchase. 

   The example above assumes the reinvestment of all dividends and 
distributions and that the percentage amounts listed under "Annual Operating 
Expenses" remain the same each year. 
   The example is designed for information purposes only, and should not be 
considered a representation of future expenses or return. Actual Fund 
expenses and return will vary from year to year and may be higher or lower 
than those shown. 
   For further information regarding management fees, 12b-1 fees and other 
expenses of the Fund, including information regarding the basis upon which 
management fees and 12b-1 fees are paid, see "Management of the Fund," 
"Distribution Plans" and "How To Buy Fund Shares" in this Prospectus and 
"Management of the Fund" and "Underwriting Agreement and Distribution Plans" 
in the Statement of Additional Information. The Fund's imposition of a Rule 
12b-1 fee may result in long-term shareholders paying more than the economic 
equivalent of the maximum sales charge permitted under Rules of Fair Practice 
of the National Association of Securities Dealers, Inc. ("NASD"). 
   The maximum initial sales charge is reduced on purchases of specified 
larger amounts of Class A shares and the value of shares owned in other 
Pioneer mutual funds is taken into account in determining the applicable 
initial sales charge. See "How to Buy Fund Shares." No sales charge is 
applied to exchanges of shares of the Fund for shares of other publicly 
available Pioneer mutual funds. See "How to Exchange Shares." 

<PAGE>
 
II. FINANCIAL HIGHLIGHTS 

   
   The following information has been derived from financial statements which 
have been audited by Arthur Andersen LLP, independent public accounts, in 
connection with their examination of the Fund's financial statements. Arthur 
Andersen LLP's report on the Fund's financial statements as of September 30, 
1995 appears in the Fund's Annual Report which is incorporated by reference 
in the Statement of Additional Information. Class B and Class C shares are 
new classes of shares; no financial highlights exist for either Class B or 
Class C shares. The Annual Report includes more information about the Fund's 
performance and is available free of charge by calling Shareholder Services 
at 1-800-225-6292. 
    

   
PIONEER MID-CAP FUND 
For a Class A share outstanding throughout each period: 
<TABLE>
<CAPTION>
                                                   For the Year Ended September 30, 
                         ----------------------------------------------------------------------------------------------------- 
                           1995         1994       1993       1992    1991     1990      1989       1988      1987      1986 
                        ---------    ---------   ---------   ------- -------  -------   -------    -------   -------    ------ 
<S>                   <C>         <C>         <C>         <C>       <C>       <C>       <C>       <C>       <C>       <C>
Net asset value, 
  beginning of period     $19.92      $21.12      $18.03    $16.16    $12.96    $17.80    $15.09    $18.52    $16.01    $13.98 
Income from investment 
  operations-- 
Net investment income      $0.24       $0.24       $0.28     $0.33     $0.41     $0.41     $0.42     $0.30     $0.28     $0.34 
Net realized and 
  unrealized gain 
  (loss) on investments     2.70        0.32        3.72      2.04      3.94     (3.56)     3.33     (1.91)     3.76      2.41 
Total income (loss) 
  from investment 
  operations               $2.94       $0.56       $4.00     $2.37    $ 4.35     $3.15     $3.75    $(1.61)    $4.04     $2.75 
Distribution to 
  shareholders from-- 
Net investment income      (0.23)      (0.25)      (0.29)    (0.35)    (0.41)    (0.46)    (0.36)    (0.41)    (0.36)    (0.36) 
Net realized capital  
  gains                     1.15       (1.51)      (0.62)    (0.15)    (0.74)    (1.23)    (0.68)    (1.41)    (1.17)    (0.36) 
Net increase 
  (decrease) in net 
  asset value             $ 1.56      $(1.20)     $ 3.09    $ 1.87    $ 3.20   $ (4.84)    $2.71    $(3.43)    $2.51     $2.03 
Net asset value, end 
  of period               $21.48      $19.92      $21.12    $18.03    $16.16   $ 12.96    $17.80    $15.09    $18.52    $16.01 
Total return*              16.24%       2.62%      22.82%    15.05%    35.80%   (19.39%)   26.32%    (6.00%)   27.50%    20.40% 
Ratio of net operating 
  expenses to average 
  net assets                0.85**      0.86%       0.84%     0.85%     0.74%     0.71%     0.72%     0.76%     0.68%     0.71% 
Ratio of net 
  investment income to 
  average net assets        1.18**      1.19%       1.43%     1.85%     2.72%     2.58%     2.56%     2.15%     1.74%     2.41% 
Portfolio turnover 
  rate                        19%         15%         18%       12%        5%       14%       16%       12%       23%       24% 
Net assets end   
  of period 
  (in thousands       $1,082,154  $1,017,233  $1,019,059  $779,631  $692,344  $562,343  $752,135  $616,953  $734,300  $543,173
</TABLE>
    

  *Assumes initial investment at net asset value at the beginning of each 
year, reinvestment of all distributions, the complete redemption of the 
investment at net asset value at the end of each year and no sales charges. 
Total return would be reduced if sales charges were taken into account. 

** Ratios include expenses paid through certain expense offset arrangements. 
Exclusion of such offset arrangements had no impact on these ratios. 

   
III. INVESTMENT OBJECTIVE AND POLICIES 
AND ASSOCIATED RISKS 
    

   The investment objective of the Fund is to seek capital growth by 
investing in a diversified portfolio of securities consisting primarily of 
common stocks. 

   The Fund is managed in accordance with the value philosophy of PMC. This 
approach consists of developing a diversified portfolio of securities 
consistent with the Fund's investment objective and selected primarily on the 
basis of PMC's judgment that the securities have an underlying value, or 
potential value, which exceeds their current prices. The analysis and 
quantification of the economic worth, or basic value, of individual companies 
reflects PMC's assessment of a company's assets and the company's prospects 
for earnings growth over the next 1-1/2- to-3 years. PMC relies primarily on 
the knowledge, experience and judgment of its own research staff, but also 
receives and uses information from a variety of outside sources, including 
brokerage firms, electronic data bases, specialized research firms and 
technical journals. 

   
   Under normal circumstances, at least 65% of the Fund's total assets are 
invested in common stocks of companies with a market capitalization of 
between $100 million and $5 billion determined at the time the security is 
purchased. The Fund's investments in common stock include common stock 
equivalents, that is, securities with common stock characteristics such as 
convertible bonds and preferred stocks. While Mid-Cap Company securities may 
offer a greater capital appreciation potential than investments in large-cap 
company securities, they may also present greater risks. Mid-Cap Company 
securities tend to be more sensitive to changes in earnings expectations and 
have lower trading volumes than large-cap company securities and, as a 
result, they may experience more abrupt and erratic price movements. 
    

   A convertible security is a long-term debt obligation of the issuer 
convertible at a stated exchange rate into common stock of the issuer. 
Convertible securities rank senior to common stocks in an issuer's capital 
structure and are consequently of higher quality and entail less risk than 
the issuer's common stock. As with all debt securities, the market values of 
convertible securities tend to increase when interest rates decline and, 
conversely, tend to decline when interest rates increase. The Fund may invest 
in investment grade debt securities, that is, securities rated "BBB" or 
higher by Standard & Poor's Ratings Group or the equivalent rating of other 
ranking agencies. If the rating of a security falls below investment grade, 
management will consider whatever action is appropriate consistent with the 
Fund's investment objectives and policies. See the Statement of Additional 
Information for a discussion of rating categories. 

   While there is no requirement to do so, the Fund intends to limit 
investments in foreign securities to no more than 10% of 

<PAGE>
 
   
its assets and to limit investments in readily tradable securities of real 
estate investment trusts ("REITS") to no more than 5% of assets. REITs are 
pooled investment vehicles which invest primarily in income producing real 
estate or real estate related loans or interests. Investing in REITs involves 
risks similar to those associated with investing in mid-cap companies. Any 
current income produced by a security is not a significant factor in the 
selection of investments. The Fund's portfolio may include a number of 
securities which are owned by other equity mutual funds managed by PMC. See 
"Portfolio Transactions" in the Statement of Additional Information for more 
information. 
    

   The Fund's fundamental investment objective and the fundamental investment 
restrictions set forth in the Statement of Additional Information may not be 
changed without shareowner approval. Certain other investment policies, 
strategies and restrictions on investment are noted throughout the Prospectus 
and are set forth in the Statement of Additional Information. These 
non-fundamental investment policies, strategies and restrictions may be 
changed at any time by a vote of the Board of Trustees. 

   It is the policy of the Fund not to engage in trading for short-term 
profits. Nevertheless, changes in the portfolio will be made promptly when 
determined to be advisable by reason of developments not foreseen at the time 
of the initial investment decision, and usually without reference to the 
length of time a security has been held. Accordingly, portfolio turnover rate 
is not considered a limiting factor in the execution of investment decisions. 

   The Fund intends to be substantially fully invested at all times. If 
suitable investments are not immediately available, the Fund may hold a 
portion of its investments in cash and cash-equivalents. For temporary 
defensive purposes, however, the Fund may invest up to 100% of its assets in 
short- term investments. The Fund will assume a defensive posture only when 
political and economic factors affect common stock markets to such an extent 
that PMC believes there to be extraordinary risks in being substantially 
invested in common stocks. A short-term investment is considered to be an 
investment with a maturity of one year or less from the date of issuance. 
Short-term investments will not normally represent more than 10% of the 
Fund's assets. 

   
   The Fund may enter into repurchase agreements, not to exceed seven days, 
with broker-dealers and any member bank of the Federal Reserve System. The 
Board of Trustees of the Fund will review and monitor the creditworthiness of 
any institution which enters into a repurchase agreement with the Fund. Such 
repurchase agreements will be fully collateralized with United States 
("U.S.") Treasury and/or agency obligations with a market value of not less 
than 100% of the obligations, valued daily. Collateral will be held by the 
Fund's custodian in a segregated, safekeeping account for the benefit of the 
Fund. Repurchase agreements afford the Fund an opportunity to earn income on 
temporarily available cash at low risk. In the event that a repurchase 
agreement is not fulfilled, the Fund could suffer a loss to the extent that 
the value of the collateral falls below the repurchase price. 
    

   The Fund may invest in securities issued by companies located in foreign 
countries. Investing in securities of foreign companies involves certain 
considerations and risks which are not typically associated with investing in 
securities of domestic companies. Foreign companies are not subject to 
uniform accounting, auditing and financial standards and requirements 
comparable to those applicable to U.S. companies. There may also be less 
publicly available information about foreign companies compared to reports 
and ratings published about U.S. companies. In addition, foreign securities 
markets have substantially less volume than domestic markets and securities 
of some foreign companies are less liquid and more volatile than securities 
of comparable U.S. companies. There may also be less government supervision 
and regulation of foreign securities exchanges, brokers and listed companies 
than exists in the United States. Dividends or interest paid by foreign 
issuers may be subject to withholding and other foreign taxes which will 
decrease the net return on such investments as compared to dividends or 
interest paid to the Fund by domestic companies. Finally, there may be the 
possibility of expropriations, confiscatory taxation, political, economic or 
social instability or diplomatic developments which could adversely affect 
assets of the Fund held in foreign countries. 

   The value of foreign securities may also be adversely affected by 
fluctuations in the relative rates of exchange between the currencies of 
different nations and by exchange control regulations. For example, the value 
of a foreign security held by the Fund as measured in U.S. dollars will 
decrease if the foreign currency in which the security is denominated 
declines in value against the U.S. dollar. In such event, this will cause an 
overall decline in the Fund's net asset value and may also reduce net 
investment income and capital gains, if any, to be distributed in U.S. 
dollars to shareholders of the Fund. 

IV. MANAGEMENT OF THE FUND 

   
   The Board of Trustees of the Fund has overall responsibility for 
management and supervision of the Fund. There are currently eight Trustees, 
six of whom are not "interested persons" of the Fund as defined in the 
Investment Company Act of 1940, as amended (the "1940 Act"). The Board meets 
at least quarterly. By virtue of the functions performed by Pioneering 
Management Corporation as investment adviser, the Fund requires no employees 
other than its executive officers, all of whom receive their compensation 
from PMC or other sources. The Statement of Additional Information contains 
the names and general business and professional background of each Trustee 
and executive officer of the Fund. 

   Investment advisory services are provided to the Fund by PMC pursuant to a 
management contract between PMC and the Fund. PMC serves as investment 
adviser to the Fund and is responsible for the overall management of the 
Fund's business affairs, subject only to the authority of the Board of 
Trustees. PMC is a wholly-owned subsidiary of The Pioneer Group, Inc. 
("PGI"), a publicly-traded Delaware corporation. Pioneer Funds Distributor, 
Inc. ("PFD"), an indirect wholly- owned subsidiary of PGI, is the principal 
underwriter of the Fund. 
    


<PAGE>
 
   
   John F. Cogan, Jr., Chairman and President of the Fund, Chairman of PFD, 
President and a Director of PGI and Chairman and a Director of PMC, owned 
approximately 15% of the outstanding capital stock of PGI as of the date of 
this Prospectus. 

   Each domestic equity portfolio managed by PMC, including this Fund, is 
overseen by an Equity Committee, which consists of PMC's most senior equity 
professionals, and a Portfolio Management Committee, which consists of PMC's 
domestic equity portfolio managers. Both committees are chaired by Mr. David 
Tripple, PMC's President and Chief Investment Officer and Executive Vice 
President of each Pioneer mutual fund. Mr. Tripple joined PMC in 1974 and has 
had general responsibility for PMC's investment operations and specific 
portfolio assignments for over five years. Day-to-day management of the 
Fund's investments has been the responsibility of Robert W. Benson since 
December 1986. Mr. Benson is Vice President of the Fund and Senior Vice 
President of PMC. Mr. Benson joined PMC in 1974. 

   In addition to the Fund, PMC also manages and serves as the investment 
adviser for other mutual funds and is an investment adviser to certain other 
institutional accounts. PMC's and PFD's executive offices are located at 60 
State Street, Boston, Massachusetts 02109. 

   Under the terms of its contract with the Fund, PMC serves as the Fund's 
manager and investment adviser subject to the supervision of the Fund's 
Trustees. PMC pays all the ordinary operating expenses, including executive 
salaries and the rental of office space relating to its services for the Fund 
with the exception of the following which are to be paid by the Fund: (a) 
taxes and other governmental charges, if any; (b) interest on borrowed money, 
if any; (c) legal fees and expenses; (d) auditing fees; (e) insurance 
premiums; (f) dues and fees for membership in trade associations; (g) fees 
and expenses of registering and maintaining registrations by the Fund of its 
shares with the SEC, individual states, territories and foreign jurisdictions 
and of preparing reports to government agencies; (h) fees and expenses of 
Trustees not affiliated with or interested persons of PMC; (i) fees and 
expenses of the custodian, dividend disbursing agent, transfer agent and 
registrar; (j) issue and transfer taxes chargeable to the Fund in connection 
with securities transactions to which the Fund is a party; (k) costs of 
reports to shareholders, shareholders' meetings and Trustees' meetings; (l) 
the cost of certificates representing shares of the fund; (m) fund 
accounting, pricing and appraisal charges and related overhead; and (n) 
distribution fees in accordance with Rule 12b-1. The Fund also pays all 
brokerage commissions and any taxes or other charges in connection with its 
portfolio transactions. 

   Orders for the Fund's portfolio securities transactions are placed by PMC, 
which strives to obtain the best price and execution for each transaction. In 
circumstances in which two or more broker-dealers are in a position to offer 
comparable prices and execution, consideration may be given to whether the 
broker-dealer provides investment research or brokerage services or sells 
shares of the Fund or other Pioneer mutual funds. See the Statement of 
Additional Information for a further description of PMC's brokerage 
allocation practices. 
    

Management Fee 

   As compensation for its management services and certain expenses which PMC 
incurs on behalf of the Fund, the Fund pays PMC a management fee that is 
comprised of two components. The first component is a basic fee equal to 
0.625% per annum of the Fund's average daily net assets (the "Basic Fee"). 
The second component is a performance fee adjustment. 

   
Computing the Performance Fee Adjustment. The Basic Fee is subject to an 
upward or downward adjustment, depending on whether, and to what extent, the 
investment performance of the Fund for the performance period exceeds, or is 
exceeded by, the record of the Standard and Poors Mid-Cap 400 Index of 
mid-capitalization stocks (the "Index") over the same period. The performance 
period consists of the current month and the prior 35 months ("performance 
period"). Each percentage point of difference (up to a maximum of |m;10) is 
multiplied by a performance adjustment rate of 0.02%. Thus, the maximum 
annualized adjustment rate is |m;0.20%. This performance comparison is made at 
the end of each month. One twelfth (1/12) of this rate is then applied to the 
Fund's average net assets for the entire performance period, giving a dollar 
amount that will be added to (or subtracted from) the Basic Fee. 

   The Fund's performance is calculated based on its net asset value per 
share. For purposes of calculating the performance adjustment, any dividends 
or capital gains distributions paid by the Fund are treated as if reinvested 
in Fund shares at the net asset value per share as of the record date for 
payment. The record for the Index is based on change in value and is adjusted 
for any cash distributions from the companies whose securities comprise the 
Index. 

   Because the adjustment to the Basic Fee is based on the comparative 
performance of the Fund and the record of the Index, the controlling factor 
is not whether Fund performance is up or down, but whether it is up or down 
more or less than the record of the Index. Moreover, the comparative 
investment record of the Fund is based solely on the relevant performance 
period without regard to the cumulative performance over a longer or shorter 
period of time. 
    

Phase-In Of Performance Fee Arrangements. The Fund's current management 
contract with PMC became effective February 1, 1996. Under the terms of the 
contract, for the period beginning February 1 and ending June 30, 1996, the 
Fund would pay PMC fees at the following annual rates, which are the same as 
those under the contract previously in effect: 0.50% on average net assets up 
to $250 million, 0.48% on the next $50 million in net assets and 0.45% on net 
assets exceeding $300 million. For the period beginning July 1 and ending 
December 31, 1996, the Basic Fee will take effect but a performance 
adjustment will only be made if this will result in a lowering of the basic 
fee. For periods after January 1, 1997, the performance adjustment will be 
made as described above. 

   The performance period initially used for calculating any performance 
adjustment to the Basic Fee will begin on February 1, 1996 and will increase 
by each succeeding month until a total of 36 months has been reached. 

<PAGE>
 
Thereafter, the performance period will consist of the current month and the 
prior 35 months as described above. 

   
   The Basic Fee is computed daily, the performance fee adjustment is 
calculated once per month and the entire management fee is normally paid 
monthly. 
    

V. FUND SHARE ALTERNATIVES 

   The Fund continuously offers three Classes of shares designated as Class 
A, Class B and Class C shares, as described more fully in "How to Buy Fund 
Shares." If you do not specify in your instructions to the Fund which Class 
of shares you wish to purchase, exchange or redeem, the Fund will assume that 
your instructions apply to Class A shares. 

   Class A Shares. If you invest less than $1 million in Class A shares, you 
will pay an initial sales charge. Certain purchases may qualify for reduced 
initial sales charges. If you invest $1 million or more in Class A shares, no 
sales charge will be imposed at the time of purchase, however, shares 
redeemed within 12 months of purchase may be subject to a contingent deferred 
sales charge ("CDSC"). Class A shares are subject to distribution and service 
fees at a combined annual rate of up to 0.25% of the Fund's average daily net 
assets attributable to Class A shares. 

   Class B Shares. If you plan to invest up to $250,000, Class B shares are 
available to you. Class B shares are sold without an initial sales charge, 
but are subject to a CDSC of up to 4% if redeemed within six years. Class B 
shares are subject to distribution and service fees at a combined annual rate 
of 1.00% of the Fund's average daily net assets attributable to Class B 
shares. Your entire investment in Class B shares is available to work for you 
from the time you make your investment, but the higher distribution fee paid 
by Class B shares will cause your Class B shares (until conversion) to have a 
higher expense ratio and to pay lower dividends, to the extent dividends are 
paid, than Class A shares. Class B shares will automatically convert to Class 
A shares, based on relative net asset value, eight years after the initial 
purchase. 

   Class C Shares. Class C shares are sold without an initial sales charge, 
but are subject to a 1% CDSC if they are redeemed within the first year after 
purchase. Class C shares are subject to distribution and service fees at a 
combined annual rate of up to 1.00% of the Fund's average daily net assets 
attributable to Class C shares. Your entire investment in Class C shares is 
available to work for you from the time you make your investment, but the 
higher distribution fee paid by Class C shares will cause your Class C shares 
to have a higher expense ratio and to pay lower dividends, to the extent 
dividends are paid, than Class A shares. Class C shares have no conversion 
feature. 

   Selecting a Class of Shares. The decision as to which Class to purchase 
depends on the amount you invest, the intended length of the investment and 
your personal situation. If you are making an investment that qualifies for 
reduced sales charges, you might consider Class A shares. If you prefer not 
to pay an initial sales charge on an investment of $250,000 or less and you 
plan to hold the investment for at least six years, you might consider Class 
B shares. If you prefer not to pay an initial sales charge and you plan to 
hold your investment for one to eight years, you may prefer Class C shares. 

   Investment dealers or their representatives may receive different 
compensation depending on which Class of shares they sell. Shares may be 
exchanged only for shares of the same Class of another Pioneer mutual fund 
and shares acquired in the exchange will continue to be subject to any CDSC 
applicable to the shares of the Fund originally purchased. Shares sold 
outside the U.S. to persons who are not U.S. citizens may be subject to 
different sales charges, CDSC's and dealer compensation arrangements in 
accordance with local laws and business practices. 

VI. SHARE PRICE 

   
   Shares of the Fund are sold at the public offering price, which is the net 
asset value per share, plus the applicable sales charge. Net asset value per 
share of a Class of the Fund is determined by dividing the value of its 
assets, less liabilities attributable to that Class, by the number of shares 
of that Class outstanding. The net asset value is computed once daily, on 
each day the Exchange is open, as of the close of regular trading on the 
Exchange. 
    

   Securities are valued at the last sale price on the principal exchange or 
market where they are traded. Securities which have not traded on the date of 
valuation or securities for which sales prices are not generally reported are 
valued at the mean between the current bid and asked prices. Securities 
quoted in foreign currencies are converted to U.S. dollars utilizing foreign 
exchange rates employed by the Fund's independent pricing services. 
Generally, trading in foreign securities is substantially completed each day 
at various times prior to the close of the Exchange. The values of such 
securities used in computing the net asset value of the Fund's shares are 
determined as of such times. Foreign currency exchange rates are also 
generally determined prior to the close of the Exchange. Occasionally, events 
which affect the values of such securities and such exchange rates may occur 
between the times at which they are determined and the close of the Exchange 
and will therefore not be reflected in the computation of the Fund's net 
asset value. If events materially affecting the value of such securities 
occur during such period, then these securities are valued at their fair 
value as determined in good faith by the Trustees. All assets of the Fund for 
which there is no other readily available valuation method are valued at 
their fair value as determined in good faith by the Trustees. 

   
VII. HOW TO BUY FUND SHARES 

   You may buy Fund shares from any securities broker-dealer which has a 
sales agreement with PFD. If you do not have a securities broker-dealer, 
please call 1-800-225-6292. Shares will be purchased at the public offering 
price, that is, the net asset value per share plus any applicable sales 
charge, next computed after receipt of a purchase order, except as set forth 
below. 
    

   The minimum initial investment is $1,000 for Class A, B and C shares, 
except as specified below. The minimum initial investment is $50 for Class A 
accounts being established to utilize monthly bank drafts, government 
allotments, payroll 

<PAGE>
 
deduction and other similar automatic investment plans. Separate minimum 
investment requirements apply to retirement plans and to telephone and wire 
orders placed by broker-dealers; and no sales charge or minimum investment 
requirements apply to the reinvestment of dividends or capital gains 
distributions. The minimum subsequent investment is $50 for Class A shares 
and $500 for Class B and C shares except that the subsequent minimum 
investment amount for Class B and C share accounts may be as little as $50 if 
an automatic investment plan (see "Automatic Investment Plans") is 
established. 

   Telephone Purchases. Your account is automatically authorized to have the 
telephone purchase privilege unless you indicated otherwise on your Account 
Application or by writing to Pioneering Services Corporation ("PSC"). The 
telephone purchase option may be used to purchase additional shares for an 
existing fund account; it may not be used to establish a new account. Proper 
account identification will be required for each telephone purchase. A 
maximum of $25,000 per account may be purchased by telephone each day. The 
telephone purchase privilege is available to IRA accounts but may not be 
available to other types of retirement plan accounts. Call PSC for more 
information. 

   You are strongly urged to consult with your financial representative prior 
to requesting a telephone purchase. To purchase shares by telephone, you must 
establish your bank account of record by completing the appropriate section 
of your Account Application or an Account Options Form. PSC will 
electronically debit the amount of each purchase from this predesignated bank 
account. Telephone purchases may not be made for 30 days after the 
establishment of your bank of record or any change to your bank information. 

   
   Telephone purchases will be priced at the net asset value plus any 
applicable sales charge next determined after PSC's receipt of a telephone 
purchase instruction and receipt of good funds (usually three days after the 
purchase instruction). You may always elect to deliver purchases to PSC by 
mail. See "Telephone Transactions and Related Liabilities" for additional 
information. 
    

Class A Shares 

   
   You may buy Class A shares at the public offering price, as follows: 
    

<TABLE>
<CAPTION>
                                                                    
                                      Sales Charge as a % of        Dealer 
                                    ---------------------------   Allowance
                                                       Net        as a % of 
                                      Offering       Amount        Offering 
        Amount of Purchase              Price       Invested        Price 
 ----------------------------------  ------------ ------------- ------------- 
<S>                                     <C>           <C>          <C>
Less than $50,000                       5.75%         6.10%          5.00% 
$50,000 but less than $100,000          4.50          4.71           4.00 
$100,000 but less than $250,000         3.50          3.63           3.00 
$250,000 but less than $500,000         2.50          2.56           2.00 
$500,000 but less than $1,000,000       2.00          2.04           1.75 
$1,000,000 or more                       -0-            -0-        see below 

</TABLE>

   No sales charge is payable at the time of purchase on investments of $1 
million or more, or for investments by certain group plans ("Group Plans"), 
but for such investments a contingent deferred sales charge ("CDSC") of 1.00% 
is imposed in the event of a redemption of Class A shares within 12 months of 
purchase. See "Redemptions and Repurchases" below. PFD may, in its 
discretion, pay a commission to broker-dealers who initiate and are 
responsible for such purchases as follows: 1.00% on the first $5 million 
invested; 0.50% on the next $45 million invested; and 0.25% on the excess 
over $50 million invested. These commissions shall not be payable if the 
purchaser is affiliated with the broker-dealer or if the purchase represents 
the reinvestment of a redemption made during the previous 12 calendar months. 
Broker-dealers who receive a commission in connection with Class A share 
purchases at net asset value by 401(a) or 401(k) retirement plans with 1,000 
or more eligible participants or with at least $10 million in plan assets 
will be required to return any commissions paid or a pro rata portion thereof 
if the retirement plan redeems its shares within 12 months of purchase. See 
also "How to Sell Fund Shares." In connection with PGI's acquisition of 
Mutual of Omaha Fund Management Company and contingent upon the achievement 
of certain sales objectives, PFD may pay to Mutual of Omaha Investor 
Services, Inc. 50% of PFD's retention of any sales commission on sales of the 
Fund's shares through such dealer. 

   The schedule of sales charges above is applicable to purchases of Class A 
shares of the Fund by (i) an individual, (ii) an individual and his or her 
spouse and children under the age of 21 and (iii) a trustee or other 
fiduciary of a trust estate or fiduciary account or related trusts or 
accounts including pension, profit-sharing and other employee benefit trusts 
qualified under Section 401 or 408 of the Internal Revenue Code of 1986, as 
amended (the "Code"), although more than one beneficiary is involved. The 
sales charges applicable to a current purchase of Class A shares of the Fund 
by a person listed above is determined by adding the value of shares to be 
purchased to the aggregate value (at the then current offering price) of 
shares of any of the other Pioneer mutual funds previously purchased and then 
owned, provided PFD is notified by such person or his or her broker-dealer 
each time a purchase is made which would qualify. Pioneer mutual funds 
include all mutual funds for which PFD serves as principal underwriter. See 
the "Letter of Intention" section of the Account Application. 

   
   Qualifying for a Reduced Sales Charge. Class A shares of the Fund may be 
sold at a reduced or eliminated sales charge to certain group plans with 100 
or more participants or at least $500,000 in plan assets ("Group Plans") 
under which a sponsoring organization makes recommendations to, permits group 
solicitation of, or otherwise facilitates purchases by, its employees, 
members or participants. Class A shares of the Fund may be sold at net asset 
value per share without a sales charge to state-sponsored Optional Retirement 
Program participants if (i) the employer has authorized a limited number of 
investment company providers for the Program, (ii) all authorized investment 
company providers offer their shares to Program participants at net asset 
value, (iii) the employer has agreed in writing to actively promote the 
authorized investment providers to Program participants and (iv) the Program 
provides for a matching contribution for each partici-
    


<PAGE>
 
pant contribution. Information about such arrangements is available from PFD. 

   Class A shares of the Fund may also be sold at net asset value per share 
without a sales charge to: (a) current or former Trustees and officers of the 
Fund and partners and employees of its legal counsel; (b) current or former 
directors, officers, employees or sales representatives of PGI, its 
subsidiaries; (c) current or former directors, officers, employees or sales 
representatives of any subadviser or predecessor investment adviser to any 
investment company for which PMC serves as an investment adviser, and the 
subsidiaries or affiliates of such persons; (d) current or former officers, 
partners, employees or registered representatives of broker- dealers which 
have entered into sales agreements with PFD; (e) members of the immediate 
families of any of the persons above; (f) any trust, custodian, pension, 
profit-sharing or other benefit plan of the foregoing persons; (g) insurance 
company separate accounts; (h) certain "wrap accounts" for the benefit of 
clients of financial planners adhering to standards established by PFD; (i) 
other funds and accounts for which PMC or any of its affiliates serves as 
investment adviser or manager; and (j) certain unit investment trusts. Shares 
so purchased are purchased for investment purposes and may not be resold 
except through redemption or repurchase by or on behalf of the Fund. The 
availability of this privilege is conditioned on the receipt by PFD of 
written notification of eligibility. Class A shares of the Fund may also be 
sold at net asset value without a sales charge in connection with certain 
reorganization, liquidation or acquisition transactions involving other 
investment companies or personal holding companies. 

   Reduced sales charges for Class A shares are available through an 
agreement to purchase a specified quantity of Fund shares over a designated 
thirteen-month period by completing the "Letter of Intention" section of the 
Account Application. Information about the "Letter of Intention" procedure, 
including its terms, is contained on the back of the Account Application as 
well as in the Statement of Additional Information. Investors who are clients 
of a broker-dealer with a current sales agreement with PFD may purchase Class 
A shares of the Fund at net asset value, without a sales charge, to the 
extent that the purchase price is paid out of proceeds from one or more 
redemptions by the investor of shares of certain other mutual funds. In order 
for a purchase to qualify for this privilege, the investor must document to 
the broker-dealer that the redemption occurred within 60 days immediately 
preceding the purchase of Class A shares; that the client paid a sales charge 
on the original purchase of the shares redeemed; and that the mutual fund 
whose shares were redeemed also offers net asset value purchases to redeeming 
shareholders of any of the Pioneer mutual funds. Further details may be 
obtained from PFD. 

Class B Shares 

   You may buy Class B shares at net asset value without the imposition of an 
initial sales charge; however, Class B shares redeemed within six years of 
purchase will be subject to a CDSC at the rates shown in the table below. The 
charge will be assessed on the amount equal to the lesser of the current 
market value or the original purchase cost of the shares being redeemed. No 
CDSC will be imposed on increases in account value above the initial purchase 
price, including shares derived from the reinvestment of dividends or capital 
gains distributions. 

   The amount of the CDSC, if any, will vary depending on the number of years 
from the time of purchase until the time of redemption of Class B shares. For 
the purpose of determining the number of years from the time of any purchase, 
all payments during a quarter will be aggregated and deemed to have been made 
on the first day of that quarter. In processing redemptions of Class B 
shares, the Fund will first redeem shares not subject to any CDSC, and then 
shares held longest during the six-year period. As a result, you will pay the 
lowest possible CDSC. 

<TABLE>
<CAPTION>
 Year Since                   CDSC as a Percentage of Dollar 
Purchase                          Amount Subject to CDSC 
- ---------------------------  --------------------------------- 
<S>                                         <C>
First                                       4.0% 
Second                                      4.0% 
Third                                       3.0% 
Fourth                                      3.0% 
Fifth                                       2.0% 
Sixth                                       1.0% 
Seventh and thereafter                      none 

</TABLE>

   Proceeds from the CDSC are paid to PFD and are used in whole or in part to 
defray PFD's expenses related to providing distribution-related services to 
the Fund in connection with the sale of Class B shares, including the payment 
of compensation to broker-dealers. 

   Class B shares will automatically convert into Class A shares at the end 
of the calendar quarter that is eight years after the purchase date, except 
as noted below. Class B shares acquired by exchange from Class B shares of 
another Pioneer fund will convert into Class A shares based on the date of 
the initial purchase and the applicable CDSC. Class B shares acquired through 
reinvestment of distributions will convert into Class A shares based on the 
date of the initial purchase to which such shares relate. For this purpose, 
Class B shares acquired through reinvestment of distributions will be 
attributed to particular purchases of Class B shares in accordance with such 
procedures as the Trustees may determine from time to time. The conversion of 
Class B shares to Class A shares is subject to the continuing availability of 
a ruling from the Internal Revenue Service ("IRS") that such conversions will 
not constitute taxable events for federal tax purposes. The conversion of 
Class B shares to Class A shares will not occur if such ruling is not 
available and, therefore, Class B shares would continue to be subject to 
higher expenses than Class A shares for an indeterminate period. 

Class C Shares 

   You may buy Class C shares at net asset value without the imposition of an 
initial sales charge; however, Class C shares redeemed within one year of 
purchase will be subject to a CDSC of 1.00%. The charge will be assessed on 
the amount equal to the lesser of the current market value or the original 
purchase cost of the shares being redeemed. No CDSC will be imposed on 
increases in account value above the initial 

<PAGE>
 
purchase price, including shares derived from the reinvestment of dividends 
or capital gains distributions. Class C shares do not convert to any other 
Class of Fund shares. 

   For the purpose of determining the time of any purchase, all payments 
during a quarter will be aggregated and deemed to have been made on the first 
day of that quarter. In processing redemptions of Class C shares, the Fund 
will first redeem shares not subject to any CDSC, and then shares held for 
the shortest period of time during the one-year period. As a result, you will 
pay the lowest possible CDSC. 

   Proceeds from the CDSC are paid to PFD and are used in whole or in part to 
defray PFD's expenses related to providing distribution-related services to 
the Fund in connection with the sale of Class C shares, including the payment 
of compensation to broker-dealers. 

   
Waiver or Reduction of Contingent Deferred Sales Charge. The CDSC on Class B 
shares may be waived or reduced for non-retirement accounts if: (a) the 
redemption results from the death of all registered owners of an account (in 
the case of UGMAs, UTMAs and trust accounts, waiver applies upon the death of 
all beneficial owners) or a total and permanent disability (as defined in 
Section 72 of the Code) of all registered owners occurring after the purchase 
of the shares being redeemed or (b) the redemption is made in connection with 
limited automatic redemptions as set forth in "Systematic Withdrawal Plans" 
(limited in any year to 10% of the value of the account in the Fund at the 
time the withdrawal plan is established). 

   The CDSC on Class B shares may be waived or reduced for retirement plan 
accounts if: (a) the redemption results from the death or a total and 
permanent disability (as defined in Section 72 of the Code) occurring after 
the purchase of the shares being redeemed of a shareowner or participant in 
an employer-sponsored retirement plan; (b) the distribution is to a 
participant in an Individual Retirement Account ("IRA"), 403(b) or 
employer-sponsored retirement plan, is part of a series of substantially 
equal payments made over the life expectancy of the participant or the joint 
life expectancy of the participant and his or her beneficiary or as scheduled 
periodic payments to a participant (limited in any year to 10% of the value 
of the participant's account at the time the distribution amount is 
established; a required minimum distribution due to the participant's 
attainment of age 70-1/2 may exceed the 10% limit only if the distribution 
amount is based on plan assets held by Pioneer); (c) the distribution is from 
a 401(a) or 401(k) retirement plan and is a return of excess employee 
deferrals or employee contributions or a qualifying hardship distribution as 
defined by the Code or results from a termination of employment (limited with 
respect to a termination to 10% per year of the value of the plan's assets in 
the Fund as of the later of the prior December 31 or the date the account was 
established unless the plan's assets are being rolled over to or reinvested 
in the same class of shares of a Pioneer mutual fund subject to the CDSC of 
the shares originally held); (d) the distribution is from an IRA, 403(b) or 
employer-sponsored retirement plan and is to be rolled over to or reinvested 
in the same class of shares in a Pioneer mutual fund and which will be 
subject to the applicable CDSC upon redemption; (e) the distribution is in 
the form of a loan to a participant in a plan which permits loans (each 
repayment of the loan will constitute a new sale which will be subject to the 
applicable CDSC upon redemption); or (f) the distribution is from a qualified 
defined contribution plan and represents a participant's directed transfer 
(provided that this privilege has been pre-authorized through a prior 
agreement with PFD regarding participant directed transfers). 

   The CDSC on Class C shares and on any Class A shares subject to a CDSC may 
be waived or reduced as follows: (a) for automatic redemptions as described 
in "Systematic Withdrawal Plans" (limited to 10% of the value of the account 
subject to the CDSC); (b) if the redemption results from the death or a total 
and permanent disability (as defined in Section 72 of the Code) occurring 
after the purchase of the shares being redeemed of a shareowner or 
participant in an employer- sponsored retirement plan; (c) if the 
distribution is part of a series of substantially equal payments made over 
the life expectancy of the participant or the joint life expectancy of the 
participant and his or her beneficiary; or (d) if the distribution is to a 
participant in an employer-sponsored retirement plan and is (i) a return of 
excess employee deferrals or contributions, (ii) a qualifying hardship 
distribution as defined by the Code, (iii) from a termination of employment, 
(iv) in the form of a loan to a participant in a plan which permits loans, or 
(v) from a qualified defined contribution plan and represents a participant's 
directed transfer (provided that this privilege has been pre-authorized 
through a prior agreement with PFD regarding participant directed transfers). 
    

   The CDSC on Class B and Class C shares and on any Class A shares subject 
to a CDSC may be waived or reduced for either non-retirement or retirement 
plan accounts if: (a) the redemption is made by any state, county, or city, 
or any instrumentality, department, authority, or agency thereof, which is 
prohibited by applicable laws from paying a CDSC in connection with the 
acquisition of shares of any registered investment management company; or (b) 
the redemption is made pursuant to the Fund's right to liquidate or 
involuntarily redeem shares in a shareowner's account. 

   
Broker-Dealers. An order for any Class of Fund shares received by PFD from a 
broker-dealer prior to the close of regular trading on the Exchange is 
confirmed at the price appropriate for that Class as determined at the close 
of regular trading on the Exchange on the day the order is received, provided 
the order is received prior to PFD's close of business (usually, 5:30 p.m. 
Eastern Time). It is the responsibility of broker-dealers to transmit orders 
so that they will be received by PFD prior to its close of business. 
    


General. The Fund reserves the right in its sole discretion to withdraw all 
or any part of the offering of shares when, in the judgment of the Fund's 
management, such withdrawal is in the best interest of the Fund. An order to 
purchase shares is not binding on, and may be rejected by, PFD until it has 
been confirmed in writing by PFD and payment has been received. 

<PAGE>
 
VIII. HOW TO SELL FUND SHARES 

   You can arrange to sell (redeem) Fund shares on any day the Exchange is 
open by selling either some or all of your shares to the Fund. 

   You may sell your shares either through your broker-dealer or directly to 
the Fund. Please note the following: 

   (bullet) If you are selling shares from a retirement account, you must 
            make your request in writing (except for exchanges to other Pioneer
            mutual funds which can be requested by phone or in writing). 
            Call 1-800-622-0176 for more information. 

   (bullet) If you are selling shares from a non-retirement account, you may 
            use any of the methods described below. 

   
   Your shares will be sold at the share price next calculated after your 
order is received in good order less any applicable CDSC. Sale proceeds 
generally will be sent to you in cash, normally within seven days after your 
order is received in good order. The Fund reserves the right to withhold 
payment of the sale proceeds until checks received by the Fund in payment for 
the shares being sold have cleared, which may take up to 15 calendar days 
from the purchase date. 
    

   In Writing. You may sell your shares by delivering a written request, 
signed by all registered owners, in good order to PSC, however, you must use 
a written request, including a signature guarantee, to sell your shares if 
any of the following situations applies: 

   (bullet) you wish to sell over $50,000 worth of shares, 

   (bullet) your account registration or address has changed within the last 
            30 days 

   (bullet) the check is not being mailed to the address on your account 
            (address of record), 

   (bullet) the check is not being made out to the account owners, or 

   (bullet) the sale proceeds are being transferred to a Pioneer account with 
            a different registration. 

   Your request should include your name, the Fund's name, your Fund account 
number, the Class of shares to be redeemed, the dollar amount or number of 
shares to be redeemed, and any other applicable requirements as described 
below. Unless instructed otherwise, Pioneer will send the proceeds of the 
sale to the address of record. Fiduciaries or corporations are required to 
submit additional documents. For more information, contact PSC at 
1-800-225-6292. 

   Written requests will not be processed until they are received in good 
order and accepted by PSC. Good order means that there are no outstanding 
claims or requests to hold redemptions on the account, certificates are 
endorsed by the record owner(s) exactly as the shares are registered and, if 
required, the signature(s) are guaranteed by an eligible guarantor. You 
should be able to obtain a signature guarantee from a bank, broker, dealer, 
credit union (if authorized under state law), securities exchange or 
association, clearing agency or savings association. A notary public cannot 
provide a signature guarantee. Signature guarantees are not accepted by 
facsimile ("fax"). For additional information about the necessary 
documentation for redemption by mail, please contact PSC at 1-800-225-6292. 

   
   By Telephone or by Fax. Your account is automatically authorized to have 
the telephone redemption privilege unless you indicated otherwise on your 
Account Application or by writing to PSC. Proper account identification will 
be required for each telephone redemption. The telephone redemption option is 
not available to retirement plan accounts. A maximum of $50,000 may be 
redeemed by telephone or fax and the proceeds may be received by check or by 
bank wire or electronic funds transfer. To receive the proceeds by check: the 
check must be made payable exactly as the account is registered and the check 
must be sent to the address of record which must not have changed in the last 
30 days. To receive the proceeds by bank wire or by electronic funds 
transfer: the proceeds must be sent to the bank wire address of record which 
must have been properly pre-designated either on your Account Application or 
on an Account Options Form and which must not have changed in the last 30 
days. To redeem by fax, send your redemption request to 1-800- 225-4240. You 
may always elect to deliver redemption instructions to PSC by mail. See 
"Telephone Transactions and Related Liabilities" below. Telephone and fax 
redemptions will be priced as described above. You are strongly urged to 
consult with your financial representative prior to requesting a telephone 
redemption. 
    

   Selling Shares Through Your Broker-Dealer. The Fund has authorized PFD to 
act as its agent in the repurchase of shares of the Fund from qualified 
broker-dealers and reserves the right to terminate this procedure at any 
time. Your broker-dealer must receive your request before the close of 
business on the Exchange and transmit it to PFD before PFD's close of 
business to receive that day's redemption price. Your broker-dealer is 
responsible for providing all necessary documentation to PFD and may charge 
you for its services. 

   Small Accounts. The minimum account value is $500. If you hold shares of 
the Fund in an account with a net asset value of less than the minimum 
required amount due to redemptions or exchanges, the Fund may redeem the 
shares held in this account at net asset value if you have not increased the 
net asset value of the account to at least the minimum required amount within 
six months of notice by the Fund to you of the Fund's intention to redeem the 
shares. 

   CDSC on Class A Shares. Purchases of Class A shares of $1,000,000 or more, 
or by participants in a Group Plan which were not subject to an initial sales 
charge, may be subject to a CDSC upon redemption. A CDSC is payable to PFD on 
these investments in the event of a share redemption within 12 months 
following the share purchase, at the rate of 1% of the lesser of the value of 
the shares redeemed (exclusive of reinvested dividend and capital gain 
distributions) or the total cost of such shares. Shares subject to the CDSC 
which are exchanged into another Pioneer fund will continue to be subject to 
the CDSC until the original 12-month period expires. However, no CDSC is 
payable with respect to purchases of Class A shares by 401(a) or 401(k) 
retirement plans with 1,000 or more eligible participants or with at least 
$10 million in plan assets. 

<PAGE>
 
General. Redemptions may be suspended or payment postponed during any 
period in which any of the following conditions exist: the Exchange is closed 
or trading on the Exchange is restricted; an emergency exists as a result of 
which disposal by the Fund of securities owned by it is not reasonably 
practicable or it is not reasonably practicable for the Fund to fairly 
determine the value of the net assets of its portfolio; or the SEC, by order, 
so permits. 

   Redemptions and repurchases are taxable transactions to shareholders. The 
net asset value per share received upon redemption or repurchase may be more 
or less than the cost of shares to an investor, depending on the market value 
of the portfolio at the time of redemption or repurchase. 

IX. HOW TO EXCHANGE FUND SHARES 

   
   Written Exchanges. You may exchange your shares by sending a letter of 
instruction to PSC. Your letter should include your name, the name of the 
Fund out of which you wish to exchange and the name of the Pioneer mutual 
fund into which you wish to exchange, your fund account number(s), the Class 
of shares to be exchanged and the dollar amount or number of shares to be 
exchanged. Written exchange requests must be signed by all record owner(s) 
exactly as the shares are registered. 
    

   Telephone Exchanges. Your account is automatically authorized to have the 
telephone exchange privilege unless you indicated otherwise on your Account 
Application or by writing to PSC. Proper account identification will be 
required for each telephone exchange. Telephone exchanges may not exceed 
$500,000 per account per day. Each voice-requested or FactFone(SM) telephone 
exchange request will be recorded. 
You are strongly urged to consult with your financial representative prior to 
requesting a telephone exchange. See "Telephone Transactions and Related 
Liabilities" below. 

   Automatic Exchanges. You may automatically exchange shares from one 
Pioneer account for shares of the same Class in another Pioneer account on a 
monthly or quarterly basis. The accounts must have identical registrations 
and the originating account must have a minimum balance of $5,000. The 
exchange will be effective on the 18th day of the month. 

   General. Exchanges must be at least $1,000. You may exchange your 
investment from one Class of Fund shares at net asset value, without a sales 
charge, for shares of the same Class of any other Pioneer mutual fund. Not 
all Pioneer mutual funds offer more than one Class of shares. A new Pioneer 
account opened through an exchange must have a registration identical to that 
on the original account. 

   Class A or Class B shares which would normally be subject to a CDSC upon 
redemption will not be charged the applicable CDSC at the time of an 
exchange. Shares acquired in an exchange will be subject to the CDSC of the 
shares originally held. For purposes of determining the amount of any 
applicable CDSC, the length of time you have owned Class B shares acquired by 
exchange will be measured from the date you acquired the original shares and 
will not be affected by any subsequent exchange. 

   Exchange requests received by PSC before 4:00 p.m. Eastern Time will be 
effective on that day if the requirements above have been met, otherwise, 
they will be effective on the next business day. PSC will process exchanges 
only after receiving an exchange request in good order. There are currently 
no fees or sales charges imposed at the time of an exchange. An exchange of 
shares may be made only in states where legally permitted. For federal and 
(generally) state income tax purposes, an exchange is considered to be a sale 
of the shares of the Fund exchanged and a purchase of shares in another 
Pioneer mutual fund. Therefore, an exchange could result in a gain or loss on 
the shares sold, depending on the tax basis of these shares and the timing of 
the transaction, and special tax rules may apply. 

   You should consider the differences in objectives and policies of the 
Pioneer mutual funds, as described in each fund's current prospectus, before 
making any exchange. For the protection of the Fund's performance and 
shareholders, the Fund and PFD reserve the right to refuse any exchange 
request or restrict, at any time without notice, the number and/or frequency 
of exchanges to prevent abuses of the exchange privilege. Such abuses may 
arise from frequent trading in response to short-term market fluctuations, a 
pattern of trading by an individual or group that appears to be an attempt to 
"time the market," or any other exchange request which, in the view of 
management, will have a detrimental effect on the Fund's portfolio management 
strategy or its operations. In addition, the Fund and PFD reserve the right 
to charge a fee for exchanges or to modify, limit, suspend or discontinue the 
exchange privilege with notice to shareholders as required by law. 

X. DISTRIBUTION PLANS 

   The Fund has adopted a Plan of Distribution for each Class of shares (the 
"Class A Plan," "Class B Plan," and "Class C Plan") in accordance with Rule 
12b-1 under the 1940 Act pursuant to which certain distribution fees are paid 
to PFD. 

   Pursuant to the Class A Plan, the Fund reimburses PFD for its actual 
expenditures to finance any activity primarily intended to result in the sale 
of Class A shares or to provide services to holders of Class A shares, 
provided the categories of expenses for which reimbursement is made are 
approved by the Fund's Board of Trustees. As of the date of this Prospectus, 
the Board of Trustees has approved the following categories of expenses for 
Class A shares of the Fund: (i) a service fee to be paid to qualified 
broker-dealers in an amount not to exceed 0.25% per annum of the Fund's daily 
net assets attributable to Class A shares; (ii) reimbursement to PFD for its 
expenditures for broker- dealer commissions and employee compensation on 
certain sales of the Fund's Class A shares with no initial sales charge (See 
"How to Buy Fund Shares"); and (iii) reimbursement to PFD for expenses 
incurred in providing services to Class A shareholders and supporting 
broker-dealers and other organizations (such as banks and trust companies) in 
their efforts to provide such services. Banks are currently prohibited under 
the Glass- Steagall Act from providing certain underwriting or distribution 
services. If a bank was prohibited from acting in any capacity or providing 
any of the described services, management would consider what action, if any, 
would be appropriate. 

   Expenditures of the Fund pursuant to the Class A Plan are accrued daily 
and may not exceed 0.25% of the Fund's aver-

<PAGE>
 
age daily net assets attributable to Class A shares. Distribution expenses of 
PFD are expected to substantially exceed the distribution fees paid by the 
Fund in a given year. The Class A Plan may not be amended to increase 
materially the annual percentage limitation of average net assets which may 
be spent for the services described therein without approval of the 
shareholders of the Fund. 

   Both the Class B Plan and the Class C Plan provide that the Fund will 
compensate PFD by paying a distribution fee at the annual rate of 0.75% of 
the Fund's average daily net assets attributable to the applicable Class of 
shares and a service fee at the annual rate of 0.25% of the Fund's average 
daily net assets attributable to that Class of shares. The distribution fee 
is intended to compensate PFD for its Class B and Class C distribution 
services to the Fund. The service fee is intended to be additional 
compensation for personal services and/or account maintenance services with 
respect to Class B or Class C shares. PFD also receives the proceeds of any 
CDSC imposed on the redemption of Class B or Class C shares. 

   Commissions of 4% of the amount invested in Class B shares, equal to 3.75% 
of the amount invested and a first year's service fee equal to 0.25% of the 
amount invested, are paid to broker-dealers who have selling agreements with 
PFD. PFD may advance to dealers the first year service fee at a rate up to 
0.25% of the purchase price of such shares and, as compensation therefore, 
PFD may retain the service fee paid by the Fund with respect to such shares 
for the first year after purchase. Commencing in the 13th month following the 
purchase of Class B shares, dealers will become eligible for additional 
annual service fees of up to 0.25% of the purchase price with respect to such 
shares. 

   Commissions of up to 1% of the amount invested in Class C shares, 
consisting of 0.75% of the amount invested and a first year's service fee of 
0.25% of the amount invested, are paid to broker-dealers who have selling 
agreements with PFD. PFD may advance to dealers the first year service fee at 
a rate up to 0.25% of the purchase price of such shares and, as compensation 
therefore, PFD may retain the service fee paid by the Fund with respect to 
such shares for the first year after purchase. Commencing in the 13th month 
following the purchase of Class C shares, dealers will become eligible for 
additional annual distribution fees and services fees of up to 0.75% and 
0.25%, respectively, of the purchase price with respect to such shares. 

   Dealers may from time to time be required to meet certain criteria in 
order to receive service fees. PFD or its affiliates are entitled to retain 
all service fees payable under the Class B Plan or the Class C Plan for which 
there is no dealer of record or for which qualification standards have not 
been met as partial consideration for personal services and/or account 
maintenance services performed by PFD or its affiliates for shareowner 
accounts. 

XI. DIVIDENDS, DISTRIBUTIONS AND TAXATION 

   The Fund has elected to be treated, has qualified and intends to qualify 
each year as a "regulated investment company" under Subchapter M of the Code, 
so that it will not pay federal income taxes on income and capital gains 
distributed to shareholders at least annually. Under the Code, the Fund will 
be subject to a nondeductible 4% federal excise tax on a portion of its 
undistributed income and capital gains if it fails to meet certain 
distribution requirements with respect to each calendar year. The Fund 
intends to make distributions in a timely manner and accordingly does not 
expect to be subject to the excise tax. 

   The Fund's policy is to pay to shareholders dividends from net investment 
income, if any, twice each year during the months of June and December and to 
make distributions from net long-term capital gains, if any, in December. 
Distributions from net short-term capital gains, if any, may be paid with 
such dividends; distributions from income and/or capital gains may also be 
made at such times as may be necessary to avoid federal income or excise tax. 
Dividends from the Fund's net investment income, net short-term capital 
gains, and certain net foreign exchange gains are taxable as ordinary income, 
and dividends from the Fund's net long-term capital gains are taxable as 
long-term capital gains. 

   Unless shareholders specify otherwise, all distributions will be 
automatically reinvested in additional full and fractional shares of the 
Fund. For federal income tax purposes, all dividends are taxable as described 
above whether a shareowner takes them in cash or reinvests them in additional 
shares of the Fund. Information as to the federal tax status of dividends and 
distributions will be provided annually. For further information on the 
distribution options available to shareholders, see "Distribution Options" 
and "Directed Dividends" below. 

   Distributions by the Fund of the dividend income it receives from U.S. 
domestic corporations, if any, may qualify for the corporate 
dividends-received deduction for corporate shareholders, subject to minimum 
holding-period requirements and debt-financing restrictions under the Code. 

   The Fund anticipates that it will be subject to foreign withholding taxes 
or other foreign taxes on income (possibly including capital gains) on 
certain foreign investments, which will reduce the yield on those 
investments. The Fund does not expect to qualify to pass such taxes and any 
associated tax deductions or credits through to its shareholders. 

   Dividends and other distributions and the proceeds of redemptions, 
exchanges or repurchases of Fund shares paid to individuals and other 
non-exempt payees will be subject to a 31% backup withholding of federal 
income tax if the Fund is not provided with the shareowner's correct taxpayer 
identification number and certification that the number is correct and the 
shareowner is not subject to backup withholding or if the Fund receives 
notice from the IRS or a broker that such withholding applies. Please refer 
to the Account Application for additional information. 

   The description above relates only to U.S. federal income tax consequences 
for shareholders who are U.S. persons, i.e., U.S. citizens or residents or 
U.S. corporations, partnerships, trusts or estates and who are subject to 
U.S. federal income tax. Non-U.S. shareholders and tax-exempt shareholders 
are subject to different tax treatment that is not 

<PAGE>
 
described above. Shareholders should consult their own tax advisers regarding 
state, local and other applicable tax laws. 

XII. SHAREOWNER SERVICES 

   PSC is the shareowner services and transfer agent for shares of the Fund. 
PSC, a Massachusetts corporation, is a wholly- owned subsidiary of PGI. PSC's 
offices are located at 60 State Street, Boston, Massachusetts 02109, and 
inquiries to PSC should be mailed to Pioneering Services Corporation, P.O. 
Box 9014, Boston, Massachusetts 02205-9014. Brown Brothers Harriman & Co. 
(the "Custodian") serves as custodian of the Fund's portfolio securities and 
other assets. The principal business address of the mutual fund division of 
the Custodian is 40 Water Street, Boston, Massachusetts 02109. 

Account and Confirmation Statements 

   PSC maintains an account for each shareowner and all transactions of the 
shareowner are recorded in this account. Confirmation statements showing 
details of transactions are sent to shareholders as transactions occur, 
except Automatic Investment Plan transactions which are confirmed quarterly. 
The Combined Account Statement, mailed quarterly, is available to 
shareholders who have more than one Pioneer account. 

   Shareholders whose shares are held in the name of an investment 
broker-dealer or other party will not normally have an account with the Fund 
and might not be able to utilize some of the services available to 
shareholders of record. Examples of services which might not be available are 
investment or redemption of shares by mail, automatic reinvestment of 
dividends and capital gains distributions, withdrawal plans, Letters of 
Intention, Rights of Accumulation, telephone exchanges and redemptions, and 
newsletters. 

Additional Investments 

   You may add to your account by sending a check (minimum of $50 for Class A 
shares and $500 for Class B and C shares) to PSC (account number and Class of 
shares should be clearly indicated). The bottom portion of a confirmation 
statement may be used as a remittance slip to make additional investments. 

   Additions to your account, whether by check or through a Pioneer 
Investomatic Plan, are invested in full and fractional shares of the Fund at 
the applicable offering price in effect as of the close of the Exchange on 
the day of receipt. 

Automatic Investment Plans 

   You may arrange for regular automatic investments of $50 or more through 
government/military allotments, payroll deduction or through a Pioneer 
Investomatic Plan. A Pioneer Investomatic Plan provides for a monthly or 
quarterly investment by means of a pre-authorized draft drawn on a checking 
account. Pioneer Investomatic Plan investments are voluntary, and you may 
discontinue the Plan at any time without penalty upon 30 days' written notice 
to PSC. PSC acts as agent for the purchaser, the broker-dealer and PFD in 
maintaining these plans. 

Financial Reports and Tax Information 

   As a shareowner, you will receive financial reports at least semiannually. 
In January of each year, the Fund will mail you information about the tax 
status of dividends and distributions. 

Distribution Options 

   Dividends and capital gains distributions, if any, will automatically be 
invested in additional shares of the Fund, at the applicable net asset value 
per share, unless you indicate another option on the Account Application. 

   Two other options available are (a) dividends in cash and capital gains 
distributions in additional shares; and (b) all dividends and capital gains 
distributions in cash. These two options are not available, however, for 
retirement plans or for an account with a net asset value of less than $500. 
Changes in your distribution options may be made by written request to PSC. 

Directed Dividends 

   You may elect (in writing) to have the dividends paid by one Pioneer fund 
account invested in a second Pioneer fund account. The value of this second 
account must be at least $1,000 ($500 for Pioneer Fund or Pioneer II). 
Invested dividends may be in any amount, and there are no fees or charges for 
this service. Retirement plan shareholders may only direct dividends to 
accounts with identical registrations, i.e., PGI IRA Cust for John Smith may 
only go into another account registered PGI IRA Cust for John Smith. 

Direct Deposit 

   If you have elected to take distributions, whether dividends or dividends 
and capital gains, in cash, or have established a Systematic Withdrawal Plan, 
you may choose to have those cash payments deposited directly into your 
savings, checking or NOW bank account. You may establish this service by 
completing the appropriate section on the Account Application when opening a 
new account or the Account Options Form for an existing account. 

Voluntary Tax Withholding 

   You may request (in writing) that PSC withhold 28% of the dividends and 
capital gains distributions paid from your account (before any reinvestment) 
and forward the amount withheld to the IRS as a credit against your federal 
income taxes. This option is not available for retirement plan accounts or 
for accounts subject to backup withholding. 

Telephone Transactions and Related Liabilities 

   Your account is automatically authorized to have telephone transaction 
privileges unless you indicate otherwise on your Account Application or by 
writing to PSC. You may purchase, sell or exchange Fund shares by telephone. 
For personal assistance, call 1-800-225-6292 between 8:00 a.m. and 8:00 p.m. 
Eastern time on weekdays. Computer-assisted transactions are available to 
shareholders who have pre- recorded certain bank information (see 
"FactFone(SM)"). You are strongly urged to consult with your financial 
representative prior to requesting any telephone transaction. See "Share 
Price" for more information. To confirm that each transaction instruction 
received by telephone is genuine, the Fund will record each telephone 
transaction, require the caller to provide the personal identification number 
(PIN) for the account and send you a written confirmation of each telephone 
transaction. Different procedures may apply to accounts that are registered 
to non-U.S. citizens or that are 

<PAGE>
 
held in the name of an institution or in the name of an investment 
broker-dealer or other third-party. If reasonable procedures, such as those 
described above, are not followed, the Fund may be liable for any loss due to 
unauthorized or fraudulent instructions. The Fund may implement other 
procedures from time to time. In all other cases, neither the Fund, PSC or 
PFD will be responsible for the authenticity of instructions received by 
telephone; therefore, you bear the risk of loss for unauthorized or 
fraudulent telephone transactions. 

   During times of economic turmoil or market volatility or as a result of 
severe weather or a natural disaster, it may be difficult to contact the Fund 
by telephone to institute a redemption or exchange. You should communicate 
with the Fund in writing if you are unable to reach the Fund by telephone. 

FactFone(SM) 

   FactFone(SM) is an automated inquiry and telephone transaction system 
available to Pioneer shareholders by dialing 1-800-225-4321. FactFone(SM) 
allows you to obtain current information on your Pioneer accounts and to 
inquire about the prices and yields of all publicly available Pioneer mutual 
funds. In addition, you may use FactFone(SM) to make computer-assisted 
telephone purchases, exchanges and redemptions from your Pioneer accounts if 
you have activated your personal identification number ("PIN"). Telephone 
purchases and redemptions require the establishment of a bank account of 
record. 
You are strongly urged to consult with your financial representative prior to 
requesting any telephone transaction. Shareholders whose accounts are 
registered in the name of a broker-dealer or other third party may not be 
able to use FactFone(SM). See "How to Buy Fund Shares," "How to Exchange Fund 
Shares," "How to Sell Fund Shares" and "Telephone Transactions and Related 
Liabilities." Call PSC for assistance. 

Retirement Plans 

   You should contact the Retirement Plans Department of PSC at 
1-800-622-0176 for information relating to retirement plans for businesses, 
age-weighted profit sharing plans, Simplified Employee Pension Plans, IRAs, 
and Section 403(b) retirement plans for employees of certain non-profit 
organizations and public school systems, all of which are available in 
conjunction with investments in the Fund. The Account Application 
accompanying this Prospectus should not be used to establish any of these 
plans. Separate applications are required. 

Telecommunications Device for the Deaf (TDD) 

   If you have a hearing disability and you own TDD keyboard equipment, you 
can call our TDD number toll-free at 1-800- 225-1997, weekdays from 8:30 a.m. 
to 5:30 p.m. Eastern Time, to contact our telephone representatives with 
questions about your account. 

Systematic Withdrawal Plans 

   
   If your account has a total value of at least $10,000 you may establish a 
Systematic Withdrawal Plan ("SWP") providing for fixed payments at regular 
intervals. Withdrawals will be limited to 10% of the value of the account if 
a CDSC is applicable. See "Waiver or Reduction of Contingent Deferred Sales 
Charge" for more information. Periodic checks of $50 or more will be sent to 
you, or any person designated by you, monthly or quarterly, and your periodic 
redemptions of shares may be taxable to you. Payments can be made either by 
check or electronic transfer to a bank account designated by you. If you 
direct that withdrawal checks be paid to another person after you have opened 
your account, a signature guarantee must accompany your instructions. 
Purchases of Class A shares of the Fund at a time when you have a SWP in 
effect may result in the payment of unnecessary sales charges and may 
therefore be disadvantageous. 
    

   You may obtain additional information by calling PSC at 1-800-225-6292 or 
by referring to the Statement of Additional Information. 

Reinstatement Privilege (Class A Shares Only) 

   If you redeem all or part of your Class A shares of the Fund, you may 
reinvest all or part of the redemption proceeds without a sales charge in 
Class A shares of the Fund if you send a written request to PSC not more than 
90 days after your shares were redeemed. Your redemption proceeds will be 
reinvested at the next determined net asset value of the Class A shares of 
the Fund in effect immediately after receipt of the written request for 
reinstatement. You may realize a gain or loss for federal income tax purposes 
as a result of the redemption, and special tax rules may apply if a 
reinvestment occurs. Subject to the provisions outlined under "How to 
Exchange Fund Shares" above, you may also reinvest in Class A shares of other 
Pioneer mutual funds; in this case you must meet the minimum investment 
requirements for each fund you enter. 

   The 90-day reinstatement period may be extended by PFD for periods of up 
to one year for shareholders living in areas that have experienced a natural 
disaster, such as a flood, hurricane, tornado, or earthquake. 

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

   The options and services available to shareholders, including the terms of 
the Exchange Privilege and the Pioneer Investomatic Plan, may be revised, 
suspended or terminated at any time by PFD or by the Fund. You may establish 
the services described in this section when you open your account. You may 
also establish or revise many of them on an existing account by completing an 
Account Options Form, which you may request by calling 1-800-225-6292. 

<PAGE>
 
XIII. THE FUND 

   The Fund is a diversified open-end management investment company (commonly 
referred to as a mutual fund) organized as a Delaware business trust on 
January 31, 1996. Prior to that time the Fund operated as a Massachusetts 
business trust, initially reorganized as such on January 31, 1985. The Fund 
has authorized an unlimited number of shares of beneficial interest. As an 
open-end management investment company, the Fund continuously offers its 
shares to the public and under normal conditions must redeem its shares upon 
the demand of any shareowner at the then current net asset value per share. 
See "How to Sell Fund Shares." The Fund is not required, and does not intend, 
to hold annual shareowner meetings although special meetings may be called 
for the purpose of electing or removing Trustees, changing fundamental 
investment restrictions or approving a management contract. 

   The Fund reserves the right to create and issue additional series of 
shares. The Trustees have the authority, without further shareowner approval, 
to classify and reclassify the shares of the Fund, or any additional series 
of the Fund, into one or more classes. As of the date of this Prospectus, the 
Trustees have authorized the issuance of three classes of shares, designated 
Class A, Class B and Class C. The shares of each class represent an interest 
in the same portfolio of investments of the Fund. Each class has equal rights 
as to voting, redemption, dividends and liquidation, except that each class 
bears different distribution and transfer agent fees and may bear other 
expenses properly attributable to the particular class. Class A, Class B and 
Class C shareholders have exclusive voting rights with respect to the Rule 
12b-1 distribution plans adopted by holders of those shares in connection 
with the distribution of shares. 

   In addition to the requirements under Delaware law, the Declaration of 
Trust provides that a shareowner of the Fund may bring a derivative action on 
behalf of the Fund only if the following conditions are met: (a) shareholders 
eligible to bring such derivative action under Delaware law who hold at least 
10% of the outstanding shares of the Fund, or 10% of the outstanding shares 
of the series or class to which such action relates, shall join in the 
request for the Trustees to commence such action; and (b) the Trustees must 
be afforded a reasonable amount of time to consider such shareowner request 
and investigate the basis of such claim. The Trustees shall be entitled to 
retain counsel or other advisers in considering the merits of the request and 
shall require an undertaking by the shareholders making such request to 
reimburse the Fund for the expense of any such advisers in the event that the 
Trustees determine not to bring such action. 

   When issued and paid for in accordance with the terms of the Prospectus 
and Statement of Additional Information, shares of the Fund are fully-paid 
and non-assessable. Shares will remain on deposit with the Fund's transfer 
agent and certificates will not normally be issued. The Fund reserves the 
right to charge a fee for the issuance of certificates. 

XIV. INVESTMENT RESULTS 

   The average annual total return (for a designated period of time) on an 
investment in the Fund may be included in advertisements, and furnished to 
existing or prospective shareholders. The average annual total return for 
each Class is computed in accordance with the SEC's standardized formula. The 
calculation for all Classes assumes the reinvestment of all dividends and 
distributions at net asset value and does not reflect the impact of federal 
or state income taxes. In addition, for Class A shares the calculation 
assumes the deduction of the maximum sales charge of 5.75%; for Class B and 
Class C shares the calculation reflects the deduction of any applicable CDSC. 
The periods illustrated would normally include one, five and ten years (or 
since the commencement of the public offering of the shares of a Class, if 
shorter) through the most recent calendar quarter. 

   One or more additional measures and assumptions, including but not limited 
to historical total returns; distribution returns; results of actual or 
hypothetical investments; changes in dividends, distributions or share 
values; or any graphic illustration of such data may also be used. These data 
may cover any period of the Fund's existence and may or may not include the 
impact of sales charges, taxes or other factors. 

   Other investments or savings vehicles and/or unmanaged market indexes, 
indicators of economic activity or averages of mutual fund results may be 
cited or compared with the investment results of the Fund. Rankings or 
listings by magazines, newspapers or independent statistical or rating 
services, such as Lipper Analytical Services, Inc., may also be referenced. 

   The Fund's investment results will vary from time to time depending on 
market conditions, the composition of the Fund's portfolio and operating 
expenses of the Fund. All quoted investment results are historical and should 
not be considered representative of what an investment in the Fund may earn 
in any future period. For further information about the calculation methods 
and uses of the Fund's investment results, see the Statement of Additional 
Information. 

<PAGE>
 
PIONEER LOGO 
Pioneer Mid-Cap Fund 
60 State Street 
Boston, Massachusetts 02109 

OFFICERS 
JOHN F. COGAN, JR., Chairman and President 
DAVID D. TRIPPLE, Executive Vice President 
ROBERT W. BENSON, Vice President 
WILLIAM H. KEOUGH, Treasurer 
JOSEPH P. BARRI, Secretary 

INVESTMENT ADVISER 
PIONEERING MANAGEMENT CORPORATION 

CUSTODIAN 
BROWN BROTHERS HARRIMAN & CO. 

INDEPENDENT PUBLIC ACCOUNTANTS 
ARTHUR ANDERSEN LLP 

LEGAL COUNSEL 
HALE AND DORR 

PRINCIPAL UNDERWRITER 
PIONEER FUNDS DISTRIBUTOR, INC. 

SHAREHOLDER SERVICES AND TRANSFER AGENT 
PIONEERING SERVICES CORPORATION 
60 State Street 
Boston, Massachusetts 02109 
Telephone: 1-800-225-6292 

SERVICE INFORMATION 
If you would like information on the following, please call: 

Existing and new accounts, prospectuses, 
 applications, service forms 
 and telephone transactions .................................. 1-800-225-6292 
FactFone(SM) 
 Automated fund yields and prices, 
 account information and computer transactions................ 1-800-225-4321 

Retirement plans ............................................. 1-800-622-0176 
Toll-free fax ................................................ 1-800-225-4240 
Telecommunications Device for the Deaf (TDD) ................. 1-800-225-1997 

   
0196-3006 
(C)Pioneer Funds Distributor, Inc. 
    




<PAGE>

                              PIONEER MID-CAP FUND
                                 60 State Street
                           Boston, Massachusetts 02109

                       STATEMENT OF ADDITIONAL INFORMATION

                       Class A, Class B and Class C Shares

                                February 1, 1996

This Statement of Additional Information (Part B of the Registration  Statement)
is not a  Prospectus,  but should be read in  conjunction  with the  Prospectus,
dated  February 1, 1996. A copy of the Prospectus can be obtained free of charge
by calling  Shareholder  Services at 1-  800-225-6292  or by written  request to
Pioneer  Mid-Cap Fund (the  "Fund") at 60 State  Street,  Boston,  Massachusetts
02109.

                                TABLE OF CONTENTS
                                                                         Page

 1.  Investment Policies and Restrictions............................      2
 2.  Management of the Fund..........................................     11
 3.  Investment Adviser..............................................     15
 4.  Underwriting Agreement and Distribution Plans...................     16
 5.  Shareholder Servicing/Transfer Agent............................     18
 6.  Custodian.......................................................     18
 7.  Principal Underwriter...........................................     19
 8.  Independent Public Accountants..................................     19
 9.  Portfolio Transactions..........................................     19
10.  Tax Status and Dividends........................................     21
11.  Description of Shares...........................................     24
12.  Certain Liabilities.............................................     25
13.  Letter of Intention.............................................     26
14.  Systematic Withdrawal Plan......................................     26
15.  Determination of Net Asset Value................................     27
16.  Investment Results..............................................     28
17.  Financial Statements............................................     30
     Appendix A......................................................   A-31
     Appendix B......................................................   B-42



                THIS STATEMENT OF ADDITIONAL INFORMATION IS NOT A
                PROSPECTUS AND IS AUTHORIZED FOR DISTRIBUTION TO
                    PROSPECTIVE INVESTORS ONLY IF PRECEDED OR
                     ACCOMPANIED BY AN EFFECTIVE PROSPECTUS.


<PAGE>



1. INVESTMENT POLICIES AND RESTRICTIONS

The  Fund's  current  prospectus  (the  "Prospectus")  presents  the  investment
objective  and  the  principal  investment  policies  of  the  Fund.  Additional
investment  policies and a further description of some of the policies described
in the Prospectus appear below.

The  following  policies  and  restrictions  supplement  those  discussed in the
Prospectus.  Whenever  an  investment  policy  or  restriction  states a maximum
percentage of the Fund's assets that may be invested in any security or presents
a policy regarding quality standards,  this standard or other restrictions shall
be  determined  immediately  after  and as a result  of the  Fund's  investment.
Accordingly,  any later increase or decrease  resulting from a change in values,
net assets or other  circumstances will not be considered in determining whether
the investment complies with the Fund's investment objectives and policies.

Lending of Portfolio Securities

The Fund may lend  portfolio  securities  to member  firms of the New York Stock
Exchange,  under  agreements  which  would  require  that the  loans be  secured
continuously by collateral in cash,  cash  equivalents or United States ("U.S.")
Treasury Bills  maintained on a current basis at an amount at least equal to the
market value of the  securities  loaned.  The Fund would continue to receive the
equivalent  of the  interest or dividends  paid by the issuer on the  securities
loaned  as well  as the  benefit  of an  increase  in the  market  value  of the
securities loaned and would also receive compensation based on investment of the
collateral.  The Fund would not, however,  have the right to vote any securities
having voting  rights during the existence of the loan,  but would call the loan
in anticipation of an important vote to be taken among holders of the securities
or of the giving or  withholding of consent on a material  matter  affecting the
investment.

As with other  extensions of credit there are risks of delay in recovery or even
loss of rights in the  collateral  should the  borrower of the  securities  fail
financially.  The Fund will lend portfolio  securities  only to firms which have
been  approved  in advance by the Board of  Trustees,  which  will  monitor  the
creditworthiness of any such firms. At no time would the value of the securities
loaned exceed 5% of the value of the Fund's total assets.

Forward Foreign Currency Transactions

The Fund may engage in foreign currency transactions.  These transactions may be
conducted  on a spot,  i.e.,  cash  basis,  at the spot rate for  purchasing  or
selling currency  prevailing in the foreign  exchange market.  The Fund also has
authority  to deal in forward  foreign  currency  exchange  contracts  involving
currencies of the  different  countries in which the Fund will invest as a hedge
against  possible   variations  in  the  foreign  exchange  rate  between  these
currencies  and the  U.S.  dollar.  This  is  accomplished  through  contractual
agreements to purchase or sell a specified  currency at a specified  future date
and  price set at the time of the  contract.  The  Fund's  dealings  in  forward
foreign   currency   contracts  will  be  limited  to  hedging  either  specific
transactions or portfolio positions. Transaction hedging is the purchase or sale
of forward foreign  currency  


                                      -2-
<PAGE>

contracts with respect to specific  receivables or
payables of the Fund,  accrued in connection with the purchase and sale of their
portfolio securities denominated in foreign currencies. Portfolio hedging is the
use of forward foreign currency contracts to offset portfolio security positions
denominated or quoted in such foreign currencies. There is no guarantee that the
Fund will be engaged in hedging  activities when adverse exchange rate movements
occur.  The  Fund  will  not  attempt  to  hedge  all of its  foreign  portfolio
positions, and the Fund will enter into such transactions only to the extent, if
any, deemed appropriate by the investment adviser.  The Fund will not enter into
speculative forward foreign currency contracts.

If the Fund enters into a forward  contract to purchase  foreign  currency,  the
custodian  bank will  segregate  cash or high grade liquid debt  securities in a
separate  account in an amount equal to the value of the total assets  committed
to the  consummation  of such forward  contract.  Those assets will be valued at
market  daily and if the value of the assets in the separate  account  declines,
additional  cash or securities  will be placed in the accounts so that the value
of the account  will equal the amount of the Fund's  commitment  with respect to
such contracts.

Hedging  against  a  decline  in the  value of a  currency  does  not  eliminate
fluctuations  in the prices of  portfolio  securities  or prevent  losses if the
prices of such securities decline.  Such transactions also limit the opportunity
for gain if the value of the hedged currency should rise.  Moreover,  it may not
be possible  for the Fund to hedge  against a  devaluation  that is so generally
anticipated  that the Fund is not able to  contract  to sell the  currency  at a
price  above the  devaluation  level  they  anticipate.  The cost to the Fund of
engaging  in  foreign  currency  transactions  varies  with such  factors as the
currency involved,  the size of the contract,  the length of the contract period
and the  market  conditions  then  prevailing.  Since  transactions  in  foreign
currency and forward  contracts are usually  conducted on a principal  basis, no
fees or commissions are involved. The Fund may close out a forward position in a
currency  by selling the forward  contract  or by  entering  into an  offsetting
forward contract.

Real Estate Investment Trusts and Associated Risk Factors

The Fund may invest up to 5% of its assets in shares of REITs.  REITs are pooled
investment  vehicles which invest  primarily in income  producing real estate or
real estate related loans or interests. REITs are generally classified as equity
REITs,  mortgage  REITs or a combination  of equity and mortgage  REITs.  Equity
REITs invest the majority of their assets  directly in real  property and derive
income  primarily  from the  collection of rents.  Equity REITs can also realize
capital gains by selling  properties  that have  appreciated in value.  Mortgage
REITs invest the majority of their  assets in real estate  mortgages  and derive
income from the collection of interest payments.  Like investment companies such
as the Fund, REITs are not taxed on income distributed to shareholders  provided
they comply with several  requirements of the Internal  Revenue Code of 1986, as
amended (the "Code").  The Fund will indirectly bear its proportionate  share of
any expenses  paid by REITs in which it invests in addition to the expenses paid
by the Fund.

Investing  in REITs  involves  certain  unique  risks in addition to those risks
associated with investing in the real estate  industry in general.  Equity REITs
may be affected by changes 


                                      -3-
<PAGE>

in the value of the underlying property owned by the REITs, while mortgage REITs
may be affected by the quality of any credit extended.  REITs are dependent upon
management  skills,  are  not  diversified,  and are  subject  to the  risks  of
financing projects. REITs are subject to heavy cash flow dependency,  default by
borrowers, self-liquidation, and the possibilities of failing to qualify for the
exemption from tax for distributed income under the Code and failing to maintain
their exemptions from the Investment  Company Act of 1940, as amended (the "1940
Act").  REITs whose underlying  assets include long-term health care properties,
such as  nursing,  retirement  and  assisted  living  homes,  may be impacted by
federal regulations concerning the health care industry.

REITs (especially  mortgage REITs) are also subject to interest rate risks. When
interest  rates  decline,  the  value  of a  REIT's  investment  in  fixed  rate
obligations can be expected to rise.  Conversely,  when interest rates rise, the
value of a REIT's  investment  in fixed  rate  obligations  can be  expected  to
decline.  In contrast,  as interest rates on adjustable  rate mortgage loans are
reset periodically,  yields on a REIT's investments in such loans will gradually
align themselves to reflect changes in market interest rates,  causing the value
of such investments to fluctuate less  dramatically in response to interest rate
fluctuations than would investments in fixed rate obligations.

Investing in REITs involves risks similar to those  associated with investing in
mid capitalization  companies.  REITs may have limited financial resources,  may
trade less  frequently and in a limited volume and may be subject to more abrupt
or erratic price  movements than larger company  securities.  Historically,  mid
capitalization  stocks, such as REITs, have been more volatile in price than the
larger  capitalization  stocks  included in the  Standard & Poor's  Index of 500
Common Stocks.

Other Policies and Risks

   
It is the policy of the Fund not to concentrate its investments in securities of
companies  in any  particular  industry.  In the  opinion  of the  staff  of the
Securities and Exchange Commission (the "Commission"), investments are deemed to
be concentrated in a particular  industry if such investments  constitute 25% or
more of the Fund's total  assets.  The 1940 Act provides  that the policy of the
Fund with respect to concentration is a fundamental policy.
    

Investment Restrictions

Fundamental  Investment  Restrictions.  The Fund has adopted certain  additional
investment restrictions which may not be changed without the affirmative vote of
the  holders  of a  "majority"  (as  defined  in the  1940  Act)  of the  Fund's
outstanding voting securities. The Fund may not:

   
         (1)......Issue  senior  securities,  except as  permitted by the Fund's
borrowing,  lending  and  commodity  restrictions,  and  for  purposes  of  this
restriction,  the issuance of shares of beneficial  interest in multiple classes
or series,  the purchase or sale of options,  futures  contracts  and options on
futures  contracts,  forward  commitments,  forward foreign exchange  contracts,
repurchase agreements,  reverse repurchase  agreements,  dollar rolls, swaps and
any other financial  


                                      -4-
<PAGE>

transaction entered into pursuant to the Fund's investment policies as described
in the Prospectus and this Statement of Additional Information and in accordance
with  applicable  SEC  pronouncements,  as  well  as  the  pledge,  mortgage  or
hypothecation of the Fund's assets within the meaning of the Fund's  fundamental
investment   restriction  regarding  pledging,  are  not  deemed  to  be  senior
securities.
    

         (2)......Borrow  money,  except  from banks as a  temporary  measure to
facilitate the meeting of redemption  requests or for extraordinary or emergency
purposes and except pursuant to reverse  repurchase  agreements or dollar rolls,
in all  cases in  amounts  not  exceeding  33 1/3% of the  Fund's  total  assets
(including  the amount  borrowed)  taken at market value.  The Fund will not use
leverage to attempt to increase  income.  The Fund will not purchase  securities
while outstanding borrowings (including reverse repurchase agreements and dollar
rolls) exceed 10% of the Fund's total assets.

         (3)......Guarantee  the securities of any other company, or , mortgage,
pledge, hypothecate or assign or otherwise encumber as security for indebtedness
its securities or receivables in an amount exceeding the amount of the borrowing
secured thereby.

         (4)......Purchase  securities of a company if the purchase would result
in the Fund's  having more than 5% of the value of its total assets  invested in
securities of such company.

         (5)......Purchase  securities of a company if the purchase would result
in the Fund's owning more than 10% of the outstanding  voting securities of such
company.

         (6)......Act  as an  underwriter,  except  as it  may  deemed  to be on
underwriter in a sale of restricted securities held in its portfolio.

         (7)......Make  loans,  except by purchase of debt  obligations in which
the Fund may invest  consistent with its investment  policies,  by entering into
repurchase  agreements or through the lending of portfolio  securities,  in each
case only to the  extent  permitted  by the  Prospectus  and this  Statement  of
Additional Information.

   
         (8)......Invest  in real estate,  commodities  or commodity  contracts,
except  that  the  Fund may  invest  in real  estate  investment  trusts  and in
financial  futures  contracts  and related  options  and in any other  financial
instruments  which may be deemed to be  commodities  or  commodity  contracts in
which the Fund is not prohibited  from  investing by the Commodity  Exchange Act
and the rules and regulations thereunder
    

         (9)......Purchase  securities  on "margin" or effect " short  sales" of
securities.

The Fund does not intend to enter into any reverse  repurchase  agreement,  lend
portfolio  securities or invest in securities  index put and call  warrants,  as
described in fundamental investment  restrictions (2), (6) and (7) above, during
the coming year.


                                      -5-
<PAGE>


Non-fundamental Investment Restrictions.

It is the policy of the Fund not to concentrate its investments in securities of
companies  in any  particular  industry.  In  the  opinion  of  the  Commission,
investments  are  concentrated  in a  particular  industry  if such  investments
aggregate  25% or more of the Fund's total  assets.  The Fund's  policy does not
apply to investments in U.S. Government securities. The Fund has agreed to abide
by the  foregoing  non-fundamental  policy which it will not change  without the
affirmative  vote of a majority of the Fund's  outstanding  shares of beneficial
interest.

The following  restrictions have been designated as  non-fundamental  and may be
changed  by a  vote  of  the  Fund's  Board  of  Trustees  without  approval  of
shareholders.

The Fund may not:

         (1) purchase or retain the securities of any company if officers of the
Fund or  Trustees  of the Fund,  or  officers  and  directors  of its adviser or
principal  underwriter,  individually  own  more  than  one-half  of 1%  of  the
securities of such company or collectively own more than 5% of the securities of
such company; or

         (2) invest in  securities  of other  registered  investment  companies,
except  by  purchases  in the open  market  including  only  customary  brokers'
commissions,  and  except  as  they  may be  acquired  as part  of a  merger,  a
consolidation or an acquisition of assets; or

         (3) purchase (a)  securities  which at the time of  investment  are not
readily marketable,  (b) securities the disposition of which is restricted under
federal  securities  laws  (excluding   restricted  securities  that  have  been
determined by the Trustees of the Fund (or the person designated by them to make
such  determinations)  to be readily  marketable) and (c) repurchase  agreements
maturing in more than seven days,  if, as a result,  more than 15% of the Fund's
net assets would be invested in securities described in (a), (b), and (c) above.

In addition,  in connection  with the offering of its shares in various  states,
the Fund has agreed not to: (1) invest in puts, calls, straddles, spreads or any
combination  thereof, or in oil, gas or other mineral exploration or development
leases or programs;  (2) invest more than 5% of its assets in equity  securities
of any issuer which are not readily  marketable,  i.e.,  securities  for which a
bona fide market does not exist at the time of purchase or subsequent valuation;
(3)  pledge  its  portfolio  securities,  unless  its net  assets  less  pledged
securities continues to amount to at least 90% of the offering price; (4) invest
more than 5% of its total  assets  in  warrants,  valued at the lower of cost or
market,  or more than 2% of its total assets in warrants,  so valued,  which are
not listed on the New York or American Stock  Exchanges;  and (5) invest in real
estate limited partnerships.

   
2.       MANAGEMENT OF THE FUND

         The  Fund's  Board of  Trustees  provides  broad  supervision  over the
affairs of the Fund.  The  officers of the Fund are  responsible  for the Fund's
operations.  The Trustees and  executive  officers of the Fund are listed below,
    


                                      -6-
<PAGE>

   
together  with  their  principal  occupations  during  the past five  years.  An
asterisk  indicates those Trustees who are interested persons of the Fund within
the meaning of the Investment Company Act of 1940, as amended (the "1940 Act").

JOHN F. COGAN,  JR.*,  Chairman of the Board,  President and Trustee,  DOB: June
1926
         President, Chief Executive Officer and a Director of The Pioneer Group,
Inc.  ("PGI");  Chairman  and a Director of  Pioneering  Management  Corporation
("PMC") and Pioneer  Funds  Distributor,  Inc.  ("PFD");  Director of Pioneering
Services   Corporation   ("PSC"),   Pioneer  Capital   Corporation  ("PCC")  and
Forest-Starma (a Russian  corporation);  President and Director of Pioneer Plans
Corporation  ("PPC"),  Pioneer  Investment  Corp.  ("PIC"),  Pioneer  Metals and
Technology,  Inc. ("PMT"), Pioneer International Corp. ("PIntl"),  Pioneer First
Russia, Inc. ("First Russia") and Pioneer Omega, Inc. ("Omega"); Chairman of the
Board  and  Director  of  Pioneer   Goldfields  Limited  ("PGL")  and  Teberebie
Goldfields  Limited;   Chairman  of  the  Supervisory  Board  of  Pioneer  Fonds
Marketing,  GmbH ("Pioneer  GmbH");  Member of the Supervisory  Board of Pioneer
First Polish Trust Fund Joint Stock Company  ("PFPT");  Chairman,  President and
Trustee of all of the Pioneer  mutual funds and Partner,  Hale and Dorr (counsel
to the Fund).

RICHARD H. EGDAHL, M.D., Trustee,  DOB: December 1926
Boston University Health Policy Institute, 53 Bay State Rd., Boston, MA  02115
       Professor  of  Management,   Boston   University  School  of  Management;
Professor of Public Health, Boston University School of Public Health; Professor
of Surgery,  Boston University School of Medicine;  Director,  Boston University
Health Policy  Institute and Boston  University  Medical Center;  Executive Vice
President and Vice  Chairman of the Board,  University  Hospital;  Academic Vice
President for Health Affairs,  Boston  University;  Director,  Essex  Investment
Management  Company,  Inc.  (investment  adviser),  Health Payment Review,  Inc.
(health care  containment  software firm),  Mediplex Group,  Inc.  (nursing care
facilities firm),  Peer Review Analysis,  Inc. (health care facilities firm) and
Springer-Verlag  New  York,  Inc.  (publisher);   Honorary  Trustee,  Franciscan
Children's Hospital and Trustee of all of the Pioneer mutual funds.

MARGARET B.W. GRAHAM, Trustee,  DOB:  May 1947
The Keep, P.O. Box 110. Little Deer Isle, ME  04650
       Founding  Director,  Winthrop Group,  Inc  (consulting  firm) since 1982;
Manager of Research  Operations,  Xerox Palo Alto Research Center,  from 1991 to
1994;  Professor of Operations  Management and Management of Technology,  Boston
University School of Management  ("BUSM"),  from 1989 to 1993 and Trustee of all
of the Pioneer mutual funds, except Pioneer Variable Contracts Trust.

JOHN W. KENDRICK, Trustee,  DOB:  July 1917
6363 Waterway Drive, Falls Church, VA  22044
       Professor  Emeritus and Adjunct Scholar,  George  Washington  University;
Economic  Consultant and Director,  American  Productivity  and Quality  Center;
American  Enterprise  Institute and Trustee of all of the Pioneer  mutual funds,
except Pioneer Variable Contracts Trust.

MARGUERITE A. PIRET, Trustee,  DOB:  May 1948
One Boston Place, Suite 2635, Boston, MA 02108
         President,  Newbury,  Piret & Company, Inc. (merchant banking firm) and
Trustee of all of the Pioneer mutual funds.
    

                                      -7-
<PAGE>


   
DAVID D. TRIPPLE*, Trustee and Executive Vice President,  DOB:  February 1944
       Executive  Vice  President  and  a  Director  of  PGI;  President,  Chief
Investment  Officer and a Director of PMC;  Director of PFD, PCC,  PIC,  PIntl ,
First Russia,  Omega and Pioneer SBIC Corporation,  Executive Vice President and
Trustee of all of the Pioneer mutual funds.

STEPHEN K. WEST, Trustee,  DOB: September 1928
125 Broad Street, New York, NY  10004
       Partner,  Sullivan & Cromwell  (law firm);  Trustee,  The Winthrop  Focus
Funds (mutual funds) and Trustee of all of the Pioneer mutual funds.

JOHN WINTHROP, Trustee,  DOB:  June 1936
One North Adgers Wharf, Charleston, SC  29401
         President,  John  Winthrop  &  Co.,  Inc.  (private  investment  firm);
Director of NUI Corp.; Trustee of Alliance Capital Reserves, Alliance Government
Reserves  and  Alliance  Tax Exempt  Reserves  and Trustee of all of the Pioneer
mutual funds, except Pioneer Variable Contracts Trust.

WILLIAM H. KEOUGH, Treasurer,  DOB:  April 1937
       Senior Vice  President,  Chief  Financial  Officer and  Treasurer of PGI;
Treasurer of PFD, PMC, PSC, PCC, PIC, PIntl,  PMT, PGL, First Russia,  Omega and
Pioneer SBIC Corporation;  Treasurer and Director of PPC and Treasurer of all of
the Pioneer mutual funds.

JOSEPH P. BARRI, Secretary, DOB: August 1946
       Secretary of PGI, PMC, PPC, PIC, PIntl, PMT, First Russia, Omega and PCC;
Clerk of PFD and PSC; Partner, Hale and Dorr (counsel to the Fund) and Secretary
of all of the Pioneer mutual funds.

ERIC W. RECKARD, Assistant Treasurer, DOB:  June 1956
       Manager of Fund  Accounting  of PMC since May 1994,  Manager of Auditing,
Compliance  and  Business  Analysis  for PGI  prior to May  1994  and  Assistant
Treasurer of all of the Pioneer mutual funds.

ROBERT P. NAULT, Assistant Secretary, DOB:   March 1964
       General  Counsel and  Assistant  Secretary  of PGI since 1995;  Assistant
Secretary of PMC, PIntl, PGL, First Russia,  Omega and all of the Pioneer mutual
funds;  Assistant  Clerk of PFD and PSC: and .formerly of Hale and Dorr (counsel
to the Fund) where he most recently served as junior partner.

ROBERT W. BENSON, Vice President,  DOB:  April 1947
         Senior Vice President of PMC

         Each of the above (except Mr. Benson) is also an officer and/or Trustee
or Director of the Pioneer  mutual funds listed  below.  The Fund's  Amended and
Restated  Declaration of Trust (the  "Declaration  of Trust")  provides that the
holders of two-thirds of its outstanding  shares may vote to remove a Trustee of
the Fund at any meeting of shareholders.  See "Description of Shares" below. The
business  address of all  officers  is 60 State  Street,  Boston,  Massachusetts
02109.

         All of the  outstanding  capital  stock of PFD,  PMC and PSC is  owned,
directly or indirectly, by PGI, a publicly-owned Delaware corporation.  PMC, the
Fund's  investment  adviser,  serves as the  investment  adviser for the Pioneer
mutual funds listed below and manages the  investments of certain  institutional
accounts.
    

                                      -8-
<PAGE>

   
         The table below lists all the Pioneer mutual funds currently offered to
the public and the investment adviser and principal underwriter for each fund.

                                              Investment           Principal
Fund Name                                       Adviser           Underwriter

Pioneer International Growth Fund                 PMC                 PFD
Pioneer Europe Fund                               PMC                 PFD
Pioneer Emerging Markets Fund                     PMC                 PFD
Pioneer India Fund                                PMC                 PFD
Pioneer Capital Growth Fund                       PMC                 PFD
Pioneer Mid-Cap Fund                              PMC                 PFD
Pioneer Growth Shares                             PMC                 PFD
Pioneer Small Company Fund                        PMC                 PFD
Pioneer Gold Shares                               PMC                 PFD
Pioneer Equity-Income Fund                        PMC                 PFD
Pioneer Fund                                      PMC                 PFD
Pioneer II                                        PMC                 PFD
Pioneer Real Estate Shares                        PMC                 PFD
Pioneer Short-Term Income Trust                   PMC                 PFD
Pioneer America Income Trust                      PMC                 PFD
Pioneer Bond Fund                                 PMC                 PFD
Pioneer Income Fund                               PMC                 PFD
Pioneer Intermediate Tax-Free Fund                PMC                 PFD
Pioneer Tax-Free Income Fund                      PMC                 PFD
Pioneer New York Triple Tax-Free Fund             PMC                 PFD
Pioneer Massachusetts Double Tax-Free Fund        PMC                 PFD
Pioneer California Double Tax-Free Fund           PMC                 PFD
Pioneer U.S. Government Money Fund                PMC                 PFD
Pioneer Cash Reserves Fund                        PMC                 PFD
Pioneer Interest Shares, Inc.                     PMC               Note 1
Pioneer Variable Contracts Trust                  PMC               Note 2

Note 1    This fund is a closed-end fund.

Note 2    This is a series of eight  separate  portfolios  designed  to  provide
          investment  vehicles  for  the  variable  annuity  and  variable  life
          insurance  contracts  of various  insurance  companies  or for certain
          qualified pension plans.

To the knowledge of the Fund, no officer or trustee of the Fund owned 5% or more
of the issued and  outstanding  shares of PGI on the date of this  Statement  of
Additional  Information,  except Mr. Cogan who then owned  approximately  15% of
such shares.
    

                                      -9-
<PAGE>

                      Compensation of Officers and Trustees

   
The Fund pays no salaries or compensation to any of its officers.  Commencing on
October 1, 1996,  each  series of the Fund will pay an annual  trustee's  fee to
each  Trustee  who is not  affiliated  with PMC,  PFD or PSC  consisting  of two
components:  (a) a base fee of $500 and (b) a variable  fee,  calculated  on the
basis of the  average  net  assets of the Fund,  estimated  to be  approximately
$4,444 for 1996.  In  addition,  the Fund will pay a per  meeting fee of $120 to
each Trustee who is not affiliated  with PMC, PFD or PSC. The Fund also will pay
an annual  committee  participation  fee to  trustees  who serve as  members  of
committees  established  to act on behalf of one or more of the  Pioneer  mutual
funds.  Committee  fees will be allocated to the Fund on the basis of the Fund's
average net assets.  Each Trustee who is a member of the Audit Committee for the
Pioneer  mutual funds will  receive an annual fee equal to 10% of the  aggregate
annual  trustee's  fee,  except the  Committee  Chair who will receive an annual
trustee's  fee equal to 20% of the  aggregate  annual  trustee's  fee. The Audit
Committee  fees for each  member  and the  audit  Committee  Chair  for 1996 are
expected to be approximately  $6,000 and $12,000,  respectively.  Members of the
Pricing  Committee for the Pioneer mutual funds,  as well as any other committee
which  renders  material  functional  services to the Board of Trustees  for the
Pioneer  mutual  funds,  will  receive  an annual  fee equal to 5% of the annual
trustee's fee, except the Committee  Chair who will receive an annual  trustee's
fee equal to 10% of the annual  trustee's  fee. The Pricing  Committee  fees for
each  member  and the  Pricing  Committee  Chair  for  1996 are  expected  to be
approximately $3,000 and $6,000, respectively.  Any such fees paid to affiliates
or  interested  persons of PMC, PFD or PSC are  reimbursed to the Fund under its
Management  Contract.  In 1995, the Fund paid an annual trustee's fee of $6,000,
and a payment of $500 plus  expenses per meeting  attended,  to each Trustee who
was not affiliated with PMC, PFD or PSC and paid an annual trustee's fee of $500
plus expenses to each Trustee affiliated with PMC, PFD or PSC. Any such fees and
expenses  paid to  affiliates  or  interested  persons  of PMC,  PFD or PSC were
reimbursed  to the Fund under its  management  contract.  As of the date of this
Statement  of  Additional  Information,  the  Trustees  and officers of the Fund
owned, in the aggregate, less than 1% of the outstanding securities of the Fund.
As of such date,  to the  knowledge of the Fund, no person owned more than 5% of
the outstanding shares of the Fund.
    

The  following  table  sets  forth  certain  information  with  respect  to  the
compensation  of each  Trustee of the Fund for the fiscal year ending  September
30, 1995:
   

                                                 Pension or
                                                Retirement          Total
                                                  Benefits       Compensation
                                Aggregate        Accrued as      from Fund and
                              Compensation         Part of      Pioneer Family
Name of Trustee             from the Fund*    Fund's Expenses     of Funds**

John F. Cogan, Jr.          $    500.00           $ 0           $   11,000.00
Richard H. Egdahl, M.D.        6,715.00             0           $   63,315.00


                                      -10-
<PAGE>

Margaret B.W. Graham           6,715.00             0           $   62,398.00
John W. Kendrick               6,715.00             0           $   62,398.00
Marguerite A. Piret            7,978.50             0           $   76,704.00
David D. Tripple                 500.00             0           $   11,000.00
Stephen K. West                7,418.00             0           $   68,180.00
John Winthrop                  7,682.00             0           $   71,199.00
                              -----------           -               ---------
                            $ 44,223.50             0           $  426,194.00
    

+    PMC fully  reimburses the Fund and the other funds in the Pioneer Family of
     Funds for compensation paid to Messrs. Cogan and Tripple.
*    As of Fund's fiscal year end.
**   Estimated as of December 31, 1995 (calendar year end for all Pioneer mutual
     funds).

3. INVESTMENT ADVISER

The Fund has contracted with PMC, 60 State Street, Boston, Massachusetts, to act
as its investment  adviser.  A description of the services  provided to the Fund
under  its  management  contract  and the  expenses  paid by the Fund  under the
contract is set forth in the  Prospectus  under the caption  "Management  of the
Fund."

The term of the management contract is one year and is renewable annually by the
vote of a majority of the Board of Trustees of the Fund (including a majority of
the Board of Trustees who are not parties to the contract or interested  persons
of any such  parties).  The vote must be cast in person at a meeting  called for
the purpose of voting on such renewal.  The contract  terminates if assigned and
may be  terminated  without  penalty by either  party upon sixty  days'  written
notice  by vote of the Board of  Directors  or  Trustees  or a  majority  of the
outstanding voting securities. Pursuant to the management contract, PMC will not
be liable for any error of judgment or mistake of law or for any loss  sustained
by reason of the  adoption of any  investment  policy or the  purchase,  sale or
retention of any securities on the  recommendation of PMC. PMC, however,  is not
protected against liability by reason of willful misfeasance, bad faith or gross
negligence  in the  performance  of its  duties  or by  reason  of its  reckless
disregard  of  its  obligations  and  duties  under  the  respective  management
contract.

As compensation for its management  services and expenses incurred,  and certain
expenses  which PMC incurs on behalf of the Fund,  the Fund pays PMC a basic fee
of 0.625% of the Fund's average daily net assets (the "Basic Fee").  One twelfth
(1/12) of this annual Basic Fee is applied to the Fund's  average net assets for
the current month, giving a dollar amount which is the monthly fee.

Performance Fee Adjustment

   
The Basic Fee is  subject  to an upward or  downward  adjustment,  depending  on
whether  and to what  extent,  the  investment  performance  of the fund for the
performance  period  exceeds,  or is exceeded by, the record of the Standard and
Poors Mid-Cap 400 Index of mid-capitalization stocks (the "Index") over the same
period.  The Index is comprised of 400 domestic  stocks  chosen for market size,
with company market capitalization  ranging


                                      -11-
<PAGE>

from  $118   million  to  $7.487   billion,   liquidity   and   industry   group
representation.  It is a market-value weighted index and was the first benchmark
of midcap stock price movements.  The performance period consists of the current
month and the prior 35 months ("performance  period").  Each percentage point of
difference (up to a maximum of +/-10) is multiplied by a performance  adjustment
rate of  0.02%.  The  maximum  annualized  adjustment  rate is +/-  0.20%.  This
performance  comparison is made at the end of each month.  One twelfth (1/12) of
this rate is then  applied  to the  fund's  average  net  assets  for the entire
performance period, giving a dollar amount that is added to (or subtracted from)
the Basic Fee.
    

The Fund's  performance is calculated  based on net asset value. For purposes of
calculating  the  performance   adjustment,   any  dividends  or  capital  gains
distributions  paid by the Fund are treated as if  reinvested  in Fund shares at
the net asset value as of the record date for payment.  The record for the Index
is based on change in value and is adjusted for any cash  distributions from the
companies whose securities whose securities comprise the Index.

Application of Performance Adjustment

The  application of the  performance  adjustment is illustrated by the following
hypothetical  example,  assuming  that the net  asset  value of the Fund and the
level of the  Index  were $10 and 100,  respectively,  on the  first  day of the
performance period.

                  Investment Performance *            Cumulative Change

                  First Day     End of Period       Absolute    Percentage
                                                                  Points

Fund                $ 10           $ 13               +$ 3        + 30%
Index                100            123               + 23        + 23%

* Reflects  performance  at net asset  value.  Any  dividends  or capital  gains
distributions  paid by the Fund are  treated as if  reinvested  in shares of the
Fund at net  asset  value  as of the  payment  date  and any  dividends  paid on
securities  which  comprise  the  Index  are  treated  as if  reinvested  on the
ex-dividend date.

The  difference  in  relative  performance  for  the  performance  period  is +7
percentage points. Accordingly,  the annualized management fee rate for the last
month of the performance  period would be calculated as follows:  One-twelfth of
the Basic Fee of 0.625% would be applied to the Fund's  average daily net assets
for the month resulting in a dollar amount.  The +7 percentage  point difference
is multiplied by the  performance  adjustment  rate of 0.02% producing a rate of
0.14%.  One-twelfth of this rate is then applied to the average daily net assets
of the Fund over the  performance  period  resulting in a dollar amount which is
added to the dollar  amount of the Basic  Fee.  The  management  fee paid is the
dollar  amount  calculated  for  the  performance   period.  If  the  


                                      -12-
<PAGE>

investment performance of the Fund during the performance period was exceeded by
the record of the Index,  the dollar amount of performance  adjustment  would be
deducted from the Basic Fee.

Because the adjustment to the Basic Fee is based on the comparative  performance
of the Fund and the record of the Index,  the controlling  factor is not whether
Fund  performance  is up or down, but whether it is up or down more or less than
the record of the Index.  Moreover,  the  comparative  investment of the Fund is
based solely on the relevant performance period without regard to the cumulative
performance over a longer or shorter period of time.

Phase-In of Performance Adjustment

For the  period  starting  February  1,  1996  and  ending  June 30,  1996,  the
management  fee shall be paid at the annual  rate of 0.50% of average net assets
up to $250 million, 0.48% of the next %50 million in net assets and 0.45% on the
net assets  exceeding $300 million.  Based upon the Fund's  expected net assets,
this  fee  schedule  is  expected  to  result  in  an  effective   fee  rate  of
approximately 0.46% for such period. Because the performance adjustment operates
on a prospective basis only,  neither investment results nor average assets from
periods   prior  to  February  1,  1996  will  be   considered  in  the  initial
implementation  of the  performance  based  fee.  Additionally,  no  performance
adjustment  increasing  the Basic Fee will be made until a 12 month  performance
record,  starting in January 1997, has accrued.  A performance  adjustment  that
would  have the  effect of  lowering  the Basic Fee will be made after a 6 month
performance record, starting in February 1996, has accrued.

Accordingly, starting with July 1996, the Basic Fee will take effect and will be
adjusted  for the relative  performance  of the Fund and the record of the Index
from  February  1,  1996  onward if such  adjustment  would  have the  effect of
lowering the Basic Fee. The  application of a negative  adjustment will continue
through  December 31, 1996.  Starting with January,  1997, the Basic Fee will be
adjusted to reflect both increases and decreases  based upon the Fund's relative
performance relative to the Index from February 1, 1996 onward.

The  performance  adjustment will be applied against assets over the same period
of  performance  and  thereafter  a new month  will be added to the  period  for
purposes of measuring performance and the average assets until the period equals
36 months.  After 36 months have elapsed from February 1, 1996, the  performance
period will consist of the most recent month plus the previous 35 months.

During its fiscal years ended  September 30, 1993,  1994 and 1995, the Fund paid
or owed total management fees to PMC of approximately $4,295,000, $4,801,000 and
$4,701,000  pursuant to a management  contract  previously in effect under which
fees were paid at the annual  rate of 0.50% of the average net assets up to $250
million.,  0.48% of the next 50  million  in assets  and 0.45% on the net assets
exceeding $300 million.

                                      -13-
<PAGE>

4. UNDERWRITING AGREEMENT AND DISTRIBUTION PLANS

The Fund  entered into an  Underwriting  Agreement  with PFD.  The  Underwriting
Agreement will continue from year to year if annually  approved by the Trustees.
The  Underwriting  Agreement  provides  that  PFD  will  bear  expenses  for the
distribution of the Fund's shares, except for expenses incurred by PFD for which
it is reimbursed by the Fund under the Plan. PFD bears all expenses it incurs in
providing  services  under the  Underwriting  Agreement.  Such expenses  include
compensation to its employees and  representatives and to securities dealers for
distribution  related  services  performed  for the Fund.  PFD also pays certain
expenses in connection with the distribution of the Fund's shares, including the
cost  of  preparing,   printing  and  distributing  advertising  or  promotional
materials,   and  the  cost  of  printing  and  distributing   prospectuses  and
supplements to prospective shareholders.  The Fund bears the cost of registering
its  shares  under  federal  and state  securities  law and the laws of  certain
foreign countries.  The Fund and PFD have agreed to indemnify each other against
certain liabilities,  including liabilities under the Securities Act of 1933, as
amended.  Under the  Underwriting  Agreement,  PFD will use its best  efforts in
rendering services to the Fund.

The Fund has  adopted a plan of  distribution  pursuant  to Rule 12b-1 under the
1940 Act with  respect  to its Class A shares  (the  "Class A Plan"),  a plan of
distribution  with respect to its Class B shares (the "Class B Plan") and a plan
of  distribution  with  respect  to its  Class C  shares  (the  "Class  C Plan")
(together, the "Plans").

Class A Plan

Pursuant to the Class A Plan the Fund may reimburse PFD for its  expenditures in
financing any activity  primarily intended to result in the sale of Fund shares.
Certain  categories  of such  expenditures  have been  approved  by the Board of
Trustees and are set forth in the Prospectus.  See "Distribution  Plans" in each
Prospectus. The expenses of the Fund pursuant to the Class A Plan are accrued on
a fiscal  year basis and may not  exceed,  with  respect to Class A shares,  the
annual rate of 0.25% of the Fund's  average  annual net assets  attributable  to
Class A.

Class B Plan

The Class B Plan provides that the Fund shall pay PFD, as the Fund's distributor
for its Class B shares,  a daily  distribution  fee equal on an annual  basis to
0.75% of the Fund's average daily net assets  attributable to Class B shares and
will pay PFD a service fee equal to 0.25% of the Fund's average daily net assets
attributable to Class B shares (which PFD will in turn pay to securities dealers
which  enter  into a sales  agreement  with  PFD at a rate of up to 0.25% of the
Fund's  average  daily  net  assets  attributable  to  Class B  shares  owned by
investors  for whom that  securities  dealer is the holder or dealer of record).
This service fee is intended to be in consideration of personal  services and/or
account  maintenance  services  rendered by the dealer  with  respect to Class B
shares.  PFD will advance to dealers the first-year  service fee at a rate equal
to 0.25% of the amount invested.  As compensation  therefor,  PFD may retain the
service  fee paid by the Fund with  respect  to such  shares  for the first year
after purchase.  Dealers will


                                      -14-
<PAGE>

become  eligible  for  additional  service  fees  with  respect  to such  shares
commencing in the thirteenth month following purchase.  Dealers may from time to
time be  required to meet  certain  other  criteria in order to receive  service
fees.  PFD or its  affiliates  are  entitled to retain all service  fees payable
under  the  Class B Plan for  which  there is no  dealer  of record or for which
qualification  standards have not been met as partial consideration for personal
services and/or account maintenance  services performed by PFD or its affiliates
for shareholder accounts.

The  purpose  of  distribution  payments  to PFD  under  the  Class B Plan is to
compensate PFD for its  distribution  services to the Fund. PFD pays commissions
to dealers as well as  expenses of printing  prospectuses  and reports  used for
sales  purposes,  expenses with respect to the preparation and printing of sales
literature  and  other   distribution-related   expenses,   including,   without
limitation,  the cost  necessary to provide  distribution-related  services,  or
personnel,  travel office expenses and equipment. The Class B Plan also provides
that  PFD  will  receive  all  contingent   deferred  sales  charges   ("CDSCs")
attributable to Class B shares. (See "Distributions Plans" in the Prospectus.)

Class C Plan

The Class C Plan provides that the Fund will pay PFD, as the Fund's  distributor
for its Class C shares,  a  distribution  fee accrued daily and paid  quarterly,
equal on an  annual  basis  to 0.75% of the  Fund's  average  daily  net  assets
attributable  to Class C shares and will pay PFD a service fee equal to 0.25% of
the Fund's average daily net assets  attributable to Class C shares. PFD will in
turn pay to  securities  dealers which enter into a sales  agreement  with PFD a
distribution  fee  and  a  service  fee  at  rates  of up to  0.75%  and  0.25%,
respectively,  of the Fund's  average daily net assets  attributable  to Class C
shares  owned by  investors  for whom that  securities  dealer is the  holder or
dealer of record. The service fee is intended to be in consideration of personal
services and/or account maintenance services rendered by the dealer with respect
to Class C shares.  PFD will advance to dealers the first-year  service fee at a
rate equal to 0.25% of the amount invested.  As compensation  therefor,  PFD may
retain the  service  fee paid by the Fund with  respect  to such  shares for the
first year after  purchase.  Commencing  in the  thirteenth  month  following  a
purchase of Class C shares,  dealers will become eligible for additional service
fees at a rate of up to 0.25% of the amount invested and additional compensation
at a rate of up to 0.75% of the amount  invested  with  respect to such  shares.
Dealers  may from time to time be  required to meet  certain  other  criteria in
order to receive  service fees. PFD or its affiliates are entitled to retain all
service  fees  payable  under the  Class C Plan for which  there is no dealer of
record  or for  which  qualification  standards  have not  been  met as  partial
consideration  for  personal  services  and/or  account   maintenance   services
performed by PFD or its affiliates for shareholder accounts.

The  purpose  of  distribution  payments  to PFD  under  the  Class C Plan is to
compensate PFD for its distribution  services with respect to the Class C shares
of the Fund.  PFD pays  commissions  to dealers as well as  expenses of printing
prospectuses  and reports used for sales purposes,  expenses with respect to the
preparation  and  printing of sales  literature  and other  distribution-related
expenses,   including,   without  limitation,  the  cost  necessary 


                                      -15-
<PAGE>

to provide  distribution-related  services, or personnel, travel office expenses
and  equipment.  The Class C Plan also  provides that PFD will receive all CDSCs
attributable to Class C shares. (See "Distributions Plans" in the Prospectus.)

General

In accordance  with the terms of the Plans,  PFD provides to the Fund for review
by the Trustees a quarterly  written  report of the amounts  expended  under the
respective  Plan and the purpose for which such  expenditures  were made. In the
Trustees'  quarterly  review of the  Plans,  they will  consider  the  continued
appropriateness  and the  level  of  reimbursement  or  compensation  the  Plans
provide.

No  interested  person of the Fund,  nor any  Trustee  of the Fund who is not an
interested person of the Fund, has any direct or indirect  financial interest in
the  operation  of the Plans  except to the extent  that PFD and  certain of its
employees  may be deemed to have such an  interest  as a result of  receiving  a
portion of the  amounts  expended  under the Plans by the Fund and except to the
extent certain officers may have an interest in PFD's ultimate parent, PGI.

The Plans were adopted by a majority  vote of the Board of  Trustees,  including
all of the Trustees who are not, and were not at the time they voted, interested
persons  of the Fund,  as  defined in the 1940 Act (none of whom had or have any
direct or indirect  financial  interest in the operation of the Plans),  cast in
person at a meeting called for the purpose of voting on the Plans.  In approving
the Plans, the Trustees identified and considered a number of potential benefits
which the Plans may  provide.  The Board of  Trustees  believes  that there is a
reasonable  likelihood  that the Plans will benefit each Fund and their  current
and future shareholders. Under their terms, the Plans remain in effect from year
to year provided such  continuance is approved  annually by vote of the Trustees
in the  manner  described  above.  The  Plans  may not be  amended  to  increase
materially the annual  percentage  limitation of average net assets which may be
spent for the services described therein without approval of the shareholders of
the Fund  affected  thereby,  and material  amendments of the Plans must also be
approved by the Trustees in the manner described above. A Plan may be terminated
at any time,  without  payment of any  penalty,  by vote of the  majority of the
Trustees  who are not  interested  persons  of the Fund and  have no  direct  or
indirect  financial  interest in the  operations  of the Plan, or by a vote of a
majority of the  outstanding  voting  securities of the respective  Class of the
Fund (as defined in the 1940 Act).  A Plan will  automatically  terminate in the
event of its assignment (as defined in the 1940 Act).

During the fiscal year ended September 30, 1995, the Fund incurred  distribution
fees pursuant to the Fund's Class A plan of approximately $1,799,000. No Class B
or Class C shares were outstanding  during this period.  Distribution  fees were
paid by the Fund to PFD in  reimbursement  of expenses  related to  servicing of
shareholder accounts and to compensating dealers and sales personnel.

                                      -16-
<PAGE>


5. SHAREHOLDER SERVICING/TRANSFER AGENT

The Fund has contracted with PSC, 60 State Street, Boston, Massachusetts, to act
as  shareholder  servicing  and  transfer  agent  for the  Fund.  This  contract
terminates  if assigned and may be  terminated  without  penalty by either party
upon ninety days'  written  notice by vote of its Board of Directors or Trustees
or a majority of its outstanding voting securities.

Under  the  terms  of its  contract  with the  Fund,  PSC  services  shareholder
accounts,  and  its  duties  include:  (i)  processing  sales,  redemptions  and
exchanges of shares of the Fund;  (ii)distributing  dividends  and capital gains
associated with Fund portfolio accounts;  and  (iii)maintaining  account records
and responding to shareholder inquiries.

PSC  receives  an annual  fee of $22.00  for each  Class A,  Class B and Class C
shareholder  account from the Fund as  compensation  for the services  described
above.  PSC  is  also  reimbursed  by  the  Fund  for  its  cash   out-of-pocket
expenditures.  The  annual  fee is set at an  amount  determined  by  vote  of a
majority  of the  Trustees  (including  a majority of the  Trustees  who are not
parties to the contract with PSC or  interested  persons of any such parties) to
be  comparable  to  fees  for  such  services  being  paid by  other  investment
companies.

6. CUSTODIAN

Brown Brothers  Harriman & Co. (the  "Custodian") is the custodian of the Fund's
assets. The Custodian's responsibilities include safekeeping and controlling the
Fund's cash and securities, handling the receipt and delivery of securities, and
collecting interest and dividends on the Fund's investments.  The Custodian does
not determine the investment policies of the Fund or decide which securities the
Fund will buy or sell. The Fund may,  however,  invest in securities,  including
repurchase  agreements,  issued by the Custodian and may deal with the Custodian
as a principal in securities transactions. Portfolio securities may be deposited
into the Federal Reserve-Treasury Department Book Entry System or the Depository
Trust Company.

7. PRINCIPAL UNDERWRITER

PFD serves as the  principal  underwriter  for the Fund in  connection  with the
continuous  offering  of the  Class A,  Class B and  Class C shares of the Fund.
During the fiscal  years  ended  September  30,  1993,  September  30,  1994 and
September 30, 1995 net  underwriting  commissions paid to PFD in connection with
the  offering  of Class A shares of the Fund were,  respectively,  approximately
$3,535,000,  $2,714,000 and $1,409,000.  Commissions reallowed to dealers during
the same periods were approximately $3,141,000, $2,359,000 and $1,224,000.

The Fund will not generally issue Fund shares for consideration other than cash.
At  the  Fund's  sole  discretion,   however,  it  may  issue  Fund  shares  for
consideration  other than cash in  connection  with a bona fide  reorganization,
statutory  merger,  or other  acquisition  of portfolio  securities  (other than
municipal  debt  securities  issued  by state  political  subdivisions  or their
agencies or  instrumentalities)  provided (i) the securities meet the investment
objectives  and policies of the Fund;  (ii) the  securities  are acquired by the
Fund for investment and not for resale; 


                                      -17-
<PAGE>

(iii)  the  securities  are  not  restricted  as to  transfer  either  by law or
liquidity  of  market;  and  (iv)the  securities  have a value  which is readily
ascertainable  (and not established only by evaluation  procedures) as evidenced
by a listing on the American  Stock  Exchange or the New York Stock  Exchange or
the Nasdaq National Market.

8. INDEPENDENT PUBLIC ACCOUNTANTS

Arthur Andersen LLP, One International  Place,  Boston,  Massachusetts 02110, is
the Fund's independent public accountants,  providing audit services, tax return
review,  and  assistance  and  consultation  with respect to the  preparation of
filings with the Commission.

9. PORTFOLIO TRANSACTIONS

All orders for the purchase or sale of portfolio securities are placed on behalf
of the Fund by PMC  pursuant to  authority  contained  in the Fund's  management
contract.  In selecting  brokers or dealers,  PMC will consider various relevant
factors,  including,  but not limited to, the size and type of the  transaction;
the nature and  character  of the markets for the  security to be  purchased  or
sold; the execution efficiency,  settlement capability,  and financial condition
of the dealer;  the dealer's  execution services rendered on a continuing basis;
and the reasonableness of any dealer spreads.

PMC may select  broker-dealers  which provide brokerage and/or research services
to the Fund and/or other investment  companies  managed by PMC. In addition,  if
PMC  determines  in good  faith  that the  amount of  commissions  charged  by a
broker-dealer  is  reasonable  in  relation  to the value of the  brokerage  and
research services provided by such broker,  the Fund may pay commissions to such
broker-dealer in an amount greater than the amount another firm may charge. Such
services may include advice concerning the value of securities; the advisability
of  investing  in,  purchasing  or  selling  securities;   the  availability  of
securities or the purchasers or sellers of securities;  furnishing  analyses and
reports concerning issuers, industries, securities, economic factors and trends,
portfolio  strategy  and  performance  of  accounts;  and  effecting  securities
transactions and performing  functions incidental thereto (such as clearance and
settlement). PMC maintains a listing of broker-dealers who provide such services
on a regular basis. However, because it is anticipated that many transactions on
behalf of the Fund and other investment companies managed by PMC are placed with
broker-dealers  (including  broker-dealers on the listing) without regard to the
furnishing of such  services,  it is not possible to estimate the  proportion of
such  transactions  directed to such dealers  solely  because such services were
provided.

The  research  received  from  broker-dealers  may be useful to PMC in rendering
investment management services to the Fund as well as other investment companies
managed  by PMC,  although  not all such  research  may be  useful  to the Fund.
Conversely,  such  information  provided by brokers or dealers who have executed
transaction  orders on behalf of such other PMC  clients may be useful to PMC in
carrying out its  obligations  to the Fund. The receipt of such research has not
reduced PMC's normal independent research activities; however, it enables PMC to
avoid 


                                      -18-
<PAGE>

the additional  expenses which might otherwise be incurred if it were to attempt
to develop comparable information through its own staff.

In circumstances  where two or more  broker-dealers  offer comparable prices and
executions,  preference may be given to a broker-dealer which has sold shares of
the Fund as well as shares of other investment  companies or accounts managed by
PMC.  This  policy  does  not  imply  a  commitment  to  execute  all  portfolio
transactions through all broker-dealers that sell shares of the Fund.

The Trustees  periodically  review PMC's performance of its  responsibilities in
connection with the placement of portfolio transactions on behalf of the Fund.

In addition to the Fund, PMC acts as investment  adviser to other Pioneer mutual
funds and certain private accounts with investment  objectives  similar to those
of the Fund.  Securities  frequently meet the investment objectives of the Fund,
such other  funds and such  private  accounts.  In such cases,  the  decision to
recommend  a purchase to one fund or account  rather than  another is based on a
number of  factors.  The  determining  factors  in most  cases are the amount of
securities of the issuer then outstanding, the value of those securities and the
market for them.  Other  factors  considered in the  investment  recommendations
include  other  investments  which  each  fund  or  account  presently  has in a
particular  industry and the  availability  of investment  funds in each fund or
account.

It is possible that at times identical  securities will be held by more than one
fund  and/or  account.  However,  positions  in the same  issue may vary and the
length of time that any fund or account may choose to hold its investment in the
same issue may likewise  vary. To the extent that the Fund,  another mutual fund
in the  Pioneer  group or a private  account  managed  by PMC may not be able to
acquire as large a position in such security as it desires, it may have to pay a
higher price for the security.  Similarly, the Fund may not be able to obtain as
large an  execution  of an order to sell or as high a price  for any  particular
portfolio  security if PMC decides to sell on behalf of another account the same
portfolio  security at the same time. On the other hand, if the same  securities
are  bought  or sold at the same  time by more  than one  fund or  account,  the
resulting  participation in volume  transactions could produce better executions
for the Fund or the  account.  In the event more than one account  purchases  or
sells the same  security on a given date,  the purchases and sales will normally
be made as  nearly  as  practicable  on a pro rata  basis in  proportion  to the
amounts desired to be purchased or sold by each.

During the fiscal  years  ended  September  30,  1993,  September  30,  1994 and
September  30,  1995  the  Fund  paid  aggregate   brokerage  and   underwriting
commissions of approximately $1,786,000, $494,000 and $857,000 .

10. TAX STATUS AND DIVIDENDS

It is the Fund's policy to meet the requirements of Subchapter M of the Internal
Revenue Code of 1986, as amended (the "Code"),  for qualification as a regulated
investment  company.  These  requirements  relate to the  sources  of the Fund's
income, the  diversification of its assets, and the


                                      -19-
<PAGE>

timing  of its  distributions.  If the  Fund  meets  all such  requirements  and
distributes to its shareholders at least annually all investment company taxable
income  and net  capital  gain,  if any,  which it  receives,  the Fund  will be
relieved of the necessity of paying federal income tax.

In order to qualify  under  Subchapter  M, the Fund must,  among  other  things,
derive at least 90% of its gross income for each  taxable  year from  dividends,
interest,  payments  with respect to  securities  loans,  gains from the sale or
other disposition of stock,  securities or foreign  currencies,  or other income
(including  gains  from  options,  futures or forward  contracts)  derived  with
respect to its  business of investing in such stock,  securities  or  currencies
(the "90% income test"), limit its gains from the sale of stock,  securities and
certain  other  investments  held for less than three months to less than 30% of
its annual gross income (the "30% test") and satisfy certain diversification and
income distribution requirements.

Dividends from investment company taxable income,  which includes net investment
income, net short-term capital gain in excess of net long-term capital loss, and
certain net foreign  exchange  gains are  taxable as  ordinary  income,  whether
received in cash or in additional  shares.  Dividends from net long-term capital
gain in excess of net short-term  capital loss, if any, whether received in cash
or  additional  shares,  are  taxable to the Fund's  shareholders  as  long-term
capital gains for federal  income tax purposes  without  regard to the length of
time  shares of the Fund have been held.  The  federal  income tax status of all
distributions will be reported to shareholders annually.

Any  dividend  declared  by the Fund in  October,  November  or December as of a
record  date in such a month  and paid  during  the  following  January  will be
treated for federal income tax purposes as received by  shareholders on December
31 of the calendar year in which it is declared.

Foreign  exchange  gains and  losses  realized  by the Fund in  connection  with
certain  transactions  involving foreign  currency-denominated  debt securities,
certain  options and futures  contracts  relating to foreign  currency,  forward
foreign  currency  contracts,  foreign  currencies,  or payables or  receivables
denominated in a foreign  currency are subject to Section 988 of the Code, which
generally  causes  such gains and losses to be  treated as  ordinary  income and
losses and may affect the  amount,  timing and  character  of  distributions  to
shareholders.  Any such transactions that are not directly related to the Fund's
investment in stock or  securities  may increase the amount of gain it is deemed
to recognize  from the sale of certain  investments  held for less than 3 months
for purposes of the 30% test, and may under future Treasury  regulations produce
income not among the types of "qualifying income" for purposes of the 90% income
test.  If the net  foreign  exchange  loss for a year were to exceed  the Fund's
investment  company  taxable income  (computed  without regard to such loss) the
resulting  overall  ordinary  loss for such year would not be  deductible by the
Fund or its shareholders in future years.

If the Fund  acquires  stock in certain  non-U.S.  corporations  that receive at
least 75% of their annual gross income from passive  sources  (such as interest,
dividends,  rents,  royalties  or  capital  gain) or hold at least  50% of their
assets in investments producing such passive income ("passive foreign investment
companies"),  the Fund could be subject  to  Federal  income tax and  additional
interest charges on "excess distributions"  received from such companies or gain
from the sale of


                                      -20-
<PAGE>

stock in such  companies,  even if all income or gain  actually  received by the
Fund is timely  distributed to its  shareholders.  The Fund would not be able to
pass through to its shareholders any credit or deduction for such a tax. Certain
elections may, if available,  ameliorate  these adverse tax consequences but any
such election would require the Fund to recognize taxable income or gain without
the concurrent receipt of cash. The Fund may limit and/or manage its holdings in
passive foreign  investment  companies to minimize its tax liability or maximize
its return from these investments.

At the time of an investor's  purchase of Fund shares, a portion of the purchase
price is often attributable to realized or unrealized appreciation in the Fund's
portfolio or undistributed taxable income of the Fund. Consequently,  subsequent
distributions  from such  appreciation or income may be taxable to such investor
even if the net  asset  value of the  investor's  shares  is, as a result of the
distributions,  reduced  below  the  investor's  cost  for such  shares  and the
distributions in reality represent a return of a portion of the investment.

Any loss realized upon the redemption of shares with a tax holding period of six
months or less will be treated as a long-term  capital loss to the extent of any
amounts treated as distributions of long-term  capital gain with respect to such
shares.

In addition,  if Class A shares  redeemed or  exchanged  have been held for less
than 91 days,  (1)in the case of a  reinvestment  at net asset value,  the sales
charge paid on such shares is not included in their tax basis under the Code and
(2)in the case of an exchange, all or a portion of the sales charge paid on such
shares is not included in their tax basis under the Code,  to the extent a sales
charge that would  otherwise  apply to the shares received is educed pursuant to
the  exchange  privilege.  In either  case,  the portion of the sales charge not
included in the tax basis of the shares  redeemed or  surrendered in an exchange
is  included  in the tax basis of the shares  acquired  in the  reinvestment  or
exchange.  Losses on certain  redemptions  may be  disallowed  under "wash sale"
rules in the event of other  investments  in the same Fund within a period of 61
days  beginning  30 days before and ending 30 days after a  redemption  or other
sale of shares.

For federal  income tax  purposes,  the Fund is permitted to carry forward a net
capital loss in any year to offset net capital gains,  if any,  during the eight
years following the year of the loss. To the extent subsequent net capital gains
are offset by such losses, they would not result in federal income tax liability
to such Fund and are not expected to be distributed as such to shareholders.

Options written or purchased and futures  contracts  entered into by the Fund on
certain  securities,  securities  indices  and  foreign  currencies,  as well as
certain  foreign  currency  forward  contracts,  may cause the Fund to recognize
gains or  losses  from  marking-to-market  at the end of its  taxable  year even
though such options may not have  lapsed,  been closed out, or exercised or such
futures or forward contracts may not have been closed out or disposed of and may
affect the characterization as long-term or short-term of some capital gains and
losses realized by the Fund.  Certain options,  futures and forward contracts on
foreign currency may be subject to Section 988, described above, and accordingly
produce ordinary income or loss.  Losses on certain options,  futures or forward
contracts and/or offsetting positions  (portfolio  securities or other positions
with respect to which the Fund's risk of loss is substantially diminished by one
or more options,


                                      -21-
<PAGE>

futures or forward  contracts) may also be deferred under the tax straddle rules
of the Code,  which may also  affect the  characterization  of capital  gains or
losses from straddle  positions and certain successor  positions as long-term or
short-term.  The tax rules applicable to options, futures, forward contracts and
straddles  may affect the amount,  timing and character of the Fund's income and
loss and hence of its  distributions to shareholders.  Certain tax elections may
be available  that would enable the Fund to ameliorate  some adverse  effects of
the tax rules described in this paragraph.

For purposes of the 70% dividends-received  deduction available to corporations,
dividends  received by the Fund,  if any,  from U.S.  domestic  corporations  in
respect of any share of stock with a tax holding  period of at least 46 days (91
days in the case of certain preferred stock) held in an unleveraged position and
distributed  and designated by the Fund may be treated as qualifying  dividends.
Any  corporate   shareholder  should  consult  its  tax  adviser  regarding  the
possibility that its tax basis in its shares may be reduced,  for federal income
tax purposes,  by reason of "extraordinary  dividends"  received with respect to
the  shares.  Corporate  shareholders  must  meet  the  minimum  holding  period
requirement stated above (46 or 91 days), taking into account any holding-period
reductions  from certain  hedging or other  transactions  that  diminish risk of
loss,  with  respect to their Fund shares in order to qualify for the  deduction
and,  if they  borrow to  acquire  Fund  shares,  may be denied a portion of the
dividends-received  deduction.  The entire  qualifying  dividend,  including the
otherwise deductible amount, will be included in determining the excess (if any)
of a  corporation's  adjusted  current  earnings  over its  alternative  minimum
taxable  income,  which may  increase a  corporation's  alternative  minimum tax
liability.

The Fund may be  subject  to  withholding  and other  taxes  imposed  by foreign
countries  with  respect to  investments  in those  countries.  Tax  conventions
between certain  countries and the U.S. may reduce or eliminate such taxes.  The
Fund does not  expect  to  satisfy  the  requirements  for  passing  through  to
shareholders  their pro rata shares of foreign taxes paid by the Fund,  with the
result that its shareholders  will not include such taxes in their gross incomes
and will not be  entitled to a tax  deduction  or credit for such taxes on their
own tax returns

Different tax treatment, including penalties on certain excess contributions and
deferrals, certain pre-retirement and post-retirement distributions, and certain
prohibited   transactions  is  accorded  to  accounts  maintained  as  qualified
retirement  plans.  Shareholders  should  consult  their tax  advisers  for more
information.

The Fund is not subject to Massachusetts  corporation  franchise or excise taxes
and,  provided  that it qualifies as a regulated  investment  company  under the
Code, also will not be required to pay any Massachusetts income tax.

Federal law requires  that the Fund  withhold (as "backup  withholding")  31% of
reportable  payments,  including  dividends,  capital  gain  dividends,  and the
proceeds of redemptions  (including exchanges) and repurchases,  to shareholders
who have not complied with Internal  Revenue  Service  ("IRS")  regulations.  In
order to avoid this withholding requirement,  shareholders must certify on their
Account  Applications,  or on separate W-9 Forms,  that their Social Security or
other Taxpayer  Identification Number is correct and that they are not currently

                                      -22-
<PAGE>

subject to backup withholding,  or that they are exempt from backup withholding.
The Fund may nevertheless be required to withhold if it receives notice from the
IRS or a broker that the number  provided is incorrect or backup  withholding is
applicable  as a result of  previous  underreporting  of  interest  or  dividend
income.

The description  above relates only to U.S.  federal income tax consequences for
shareholders  who are U.S.  persons,  i.e., U.S.  citizens or residents and U.S.
domestic corporations,  partnerships,  trusts or estates, and who are subject to
U.S.  federal income tax. The description does not address the special tax rules
applicable to particular types of investors, such as banks, insurance companies,
or tax-exempt  entities.  Shareholders  should consult their own tax advisers on
these matters and on state, local and other applicable tax laws. Investors other
than U.S.  persons may be subject to different U.S. tax  treatment,  including a
possible 30% U.S. withholding tax (or withholding tax at a lower treaty rate) on
amounts treated as ordinary dividends from the Fund and, unless an effective IRS
Form W-8 or  authorized  substitute  is on file,  to 31% backup  withholding  on
certain other payments from the Fund.

11. DESCRIPTION OF SHARES

The Fund's  Declaration  of Trust permits the Board of Trustees to authorize the
issuance of an  unlimited  number of full and  fractional  shares of  beneficial
interest  which may be divided  into such  separate  series as the  Trustees may
establish.  Currently,  the Fund consists of only one series.  The Trustees may,
however,  establish additional series of shares in the future, and may divide or
combine the shares  into a greater or lesser  number of shares  without  thereby
changing the proportionate  beneficial interests in the Fund. The Declaration of
Trust further  authorizes  the Trustees to classify or reclassify  any series of
the  shares  into one or more  classes.  Pursuant  thereto,  the  Trustees  have
authorized  the issuance of three  classes of shares of the Fund,  designated as
Class A shares,  Class B and Class C shares.  Each  share of a class of the Fund
represents an equal  proportionate  interest in the assets of the Fund allocable
to that class.  Upon liquidation of the Fund,  shareholders of each class of the
Fund are  entitled to share pro rata in the Fund's net assets  allocable to such
class available for distribution to shareholders. The Fund reserves the right to
create and issue  additional  series or  classes  of  shares,  in which case the
shares of each class of a series  would  participate  equally  in the  earnings,
dividends and assets allocable to that class of the particular series.

Shareholders  are  entitled  to one vote for each share held and may vote in the
election  of  Trustees  and  on  other   matters   submitted  to  a  meeting  of
shareholders.  Although  Trustees are not elected annually by the  shareholders,
shareholders have, under certain circumstances,  the right to remove one or more
Trustees.

The shares of each series of the Fund are entitled to vote separately to approve
investment  advisory  agreements  or changes  in  investment  restrictions,  but
shareholders  of all series  vote  together in the  election  and  selection  of
Trustees and  accountants.  Shares of all series of the Fund vote  together as a
class on matters  that affect all series of the Fund in  substantially  the same
manner. As to matters affecting a single series or class,  shares of such series
or class will vote separately.  No amendment  adversely  affecting the rights of
shareholders  may be  made  to the 


                                      -23-
<PAGE>

Fund's  Declaration of Trust without the  affirmative  vote of a majority of its
shares.  Shares have no preemptive or conversion  rights.  Shares are fully paid
and non-assessable by the Fund, except as stated below.
       

12. CERTAIN LIABILITIES

   
The  Fund  (previously  named  Pioneer  Three)  was  previously  organized  as a
Massachusetts business trust and was reorganized as a Delaware business trust on
January 31, 1996,  pursuant to an Agreement and Plan of Reorganization  approved
by the  shareholders  of the Fund.  As a  Delaware  business  trust,  the Fund's
operations  are governed by its  Declaration  of Trust dated January 31, 1996. A
copy of the fund's Certificate of Trust, also dated January 31, 1996, is on file
with the  office of the  Secretary  of State of  Delaware.  Generally,  Delaware
business trust  shareholders  are not personally  liable for  obligations of the
Delaware business trust under Delaware law. The Delaware Business Trust Act (the
"Delaware  Act") provides that a shareholder of a Delaware  business trust shall
be entitled to the same  limitation  of liability  extended to  shareholders  of
private  for-profit  corporations.  The Fund's  Declaration  of Trust  expressly
provides  that  the  Fund is  organized  under  the  Delaware  Act and  that the
Declaration of Trust is to be governed by Delaware law. There is  nevertheless a
possibility  that a Delaware  business trust,  such as the fund,  might become a
party to an action in another state whose courts  refused to apply Delaware law,
in which  case  the  trust's  shareholders  could  become  subject  to  personal
liability.
    

To guard  against this risk,  the  Declaration  of Trust (I) contains an express
disclaimer  of  shareholder  liability for acts or  obligations  of the Fund and
provides  that  notice  of such  disclaimer  may be  given  in  each  agreement,
obligation or  instrument  entered into or executed by the Fund or its Trustees,
(ii) provides for the  indemnification  out of Fund property of any shareholders
held personally liable for any obligations of the Fund or any series of the Fund
and (iii) provides that the Fund shall, upon request,  assume the defense of any
claim made against any  shareholder  for any act or  obligation  of the Fund and
satisfy  any  judgment  thereon.  Thus,  the  risk  of a  shareholder  incurring
financial loss beyond his or her investment because of shareholder  liability is
limited to circumstances in which all of the following factors are present:  (1)
a court refused to apply  Delaware  law; (2) the liability  arose under tort law
or, if not, no  contractual  limitation of liability was in effect;  and (3) the
Fund itself would be unable to meet its  obligations.  In light of Delaware law,
the nature of the Fund's  business  and the  nature of its  assets,  the risk of
personal liability to a Fund shareholder is remote.

The Declaration of Trust further  provides that the Fund shall indemnify each of
its Trustees and officers against  liabilities and expenses  reasonably incurred
by them, in connection with, or arising out of, any action,  suit or proceeding,
threatened against or otherwise  involving such Trustee or officer,  directly or
indirectly,  by reason of being or having been a Trustee or officer of the Fund.
The Declaration of Trust does not authorize the Fund to indemnify any Trustee or
officer  against any liability to which he or she would  otherwise be subject by
reason of or for willful  misfeasance,  bad faith,  gross negligence or reckless
disregard of such person's duties.

                                      -24-
<PAGE>


13.  LETTER OF INTENTION

Purchases  in the Class A shares of the Fund of $50,000 or more  (excluding  any
reinvestments  of  dividends  and  capital  gains  distributions)  made within a
13-month period  pursuant to a Letter of Intention  provided by PFD will qualify
for a reduced  sales  charge.  Such reduced sales charge will be the charge that
would be applicable to the purchase of all Class A shares  purchased during such
13-month period pursuant to a Letter of Intention had such shares been purchased
all at once.  See "How to Buy Fund Shares" in each  Prospectus.  For example,  a
person who signs a Letter of Intention providing for a total investment in Class
A shares of $50,000  over a 13-month  period would be charged at the 4.50% sales
charge rate with respect to all purchases during that period.  Should the amount
actually  purchased  during  the  13-month  period  be more or  less  than  that
indicated  in the Letter,  an  adjustment  in the sales  charge will be made.  A
purchase not made pursuant to a Letter of Intention  may be included  thereafter
if the Letter is filed within 90 days of such purchase. Any shareholder may also
obtain the reduced  sales  charge by  including  the value (at current  offering
price) of all the shares of record he holds in the Fund and in all other Pioneer
mutual  funds as of the  date of the  Letter  of  Intention  as a credit  toward
determining  the  applicable  scale of sales charge for the Class A shares to be
purchased under the Letter of Intention.

The  Letter  of  Intention  authorizes  PSC to  escrow  Class A shares  having a
purchase price equal to 5% of the stated  investment  specified in the Letter of
Intention.  A Letter of Intention is not a binding  obligation upon the investor
to purchase,  or the Fund to sell,  the full amount  indicated  and the investor
should carefully read the provisions of the Letter of Intention set forth in the
Account Application before signing.

14. SYSTEMATIC WITHDRAWAL PLAN

The  Systematic  Withdrawal  Plan  ("SWP") is designed  to provide a  convenient
method of receiving  fixed payments at regular  intervals from Class A shares of
the Fund  deposited by the applicant  under this SWP. The applicant must deposit
or purchase  for deposit with PSC shares of the Fund having a total value of not
less than $10,000.  Periodic checks of $50 or more will be deposited  monthly or
quarterly  directly  into a bank account  designated by the applicant or will be
sent by check to the  applicant,  or any  person  designated  by him  monthly or
quarterly.  Withdrawals  from Class B share  accounts  are limited to 10% of the
value of the account at the time the SWP is implemented.

Any income dividends or capital gains distributions on shares under the SWP will
be  credited  to the Plan  account on the  payment  date in full and  fractional
shares at the net asset value per share in effect on the record date.

   
SWP payments are made from the proceeds of the  redemption  of shares  deposited
under the SWP in a SWP account. To the extent that such redemptions for periodic
withdrawals  exceed  dividend  income  reinvested  in  the  SWP  account,   such
redemptions  will  reduce  and may  ultimately  exhaust  the  number  of  shares
deposited in the Plan account. Redemptions are taxable
    

                                      -25-
<PAGE>


transactions to shareholders. In addition, the amounts received by a shareholder
cannot be considered as yield or income on his or her investment because part of
such payments may be a return of his or her investment.

The SWP may be terminated at any time (1)by written notice to PSC or from PSC to
the  shareholder;  (2)upon  receipt  by  PSC  of  appropriate  evidence  of  the
shareholder's death; or (3)when all shares under the Plan have been redeemed.

15.  DETERMINATION OF NET ASSET VALUE

   
The net asset value per share of each class of the Fund is  determined as of the
close  of  regular  trading  on the New York  Stock  Exchange  (the  "Exchange")
(currently  4:00 p.m.,  Eastern  Time) on each day on which the Exchange is open
for trading.  As of the date of this  Statement of Additional  Information,  the
Exchange is open for trading  every weekday  except for the following  holidays:
New Year's Day,  Presidents' Day, Good Friday,  Memorial Day,  Independence Day,
Labor Day,  Thanksgiving Day and Christmas Day. The net asset value per share of
each class of the Fund is also determined on any other day in which the level of
trading in its portfolio  securities is  sufficiently  high that the current net
asset  value per share might be  materially  affected by changes in the value of
its  portfolio  securities.  The Fund is not required to determine its net asset
value per  share on any day in which no  purchase  orders in good  order for the
shares of the Fund are received and no shares are tendered for redemption.
    

The net asset  value per share of each class of the Fund is  computed  by taking
the value of all of the Fund's assets  attributable to a class,  less the Fund's
liabilities  attributable  to  a  class,  and  dividing  it  by  the  number  of
outstanding  shares of the class.  For purposes of determining  net asset value,
expenses of the classes of the Fund are accrued daily.

Securities that have not traded on the date of valuation or securities for which
sales prices are not generally  reported are valued at the mean between the last
bid and asked  prices.  Securities  for which no market  quotations  are readily
available  (excluding  those whose trading has been suspended) will be valued at
fair value as  determined  in good faith by the Board of Trustees,  although the
actual  computations  may be made by persons acting pursuant to the direction of
the Board of Trustees.

The Fund's maximum  offering price per Class A share is determined by adding the
maximum sales charge to the net asset value per Class A share. Class B and Class
C shares are offered at net asset value  without  the  imposition  of an initial
sales charge.
       

16. INVESTMENT RESULTS

Quotations, Comparisons, and General Information

From time to time,  in  advertisements,  in sales  literature,  or in reports to
shareholders,  the  past  performance  of the  Fund  may be  illustrated  and/or
compared with that of other mutual funds with similar investment objectives, and
to stock or other  relevant  indices.  For  example,  total return of the


                                      -26-
<PAGE>

Fund's  classes  may be  compared  to  rankings  prepared  by Lipper  Analytical
Services,  Inc., a widely recognized  independent  service which monitors mutual
fund performance;  the Standard & Poors Mid-Cap 400 Index (described  above);the
Standard & Poor's 500 Stock Index ("S&P 500"),  an index of unmanaged  groups of
common stock; the Dow Jones Industrial Average, a recognized  unmanaged index of
common stocks of 30 industrial  companies listed on the New York Stock Exchange;
or The Frank Russell Indexes  ("Russell  1000," "2000," "2500,"  "3000,") or the
Wilshire Total Market Value Index ("Wilshire  5000"),  two recognized  unmanaged
indexes of broad based common stocks.

In  addition,  the  performance  of the  classes of the Fund may be  compared to
alternative  investment or savings  vehicles  and/or to indexes or indicators of
economic activity,  e.g., inflation or interest rates.  Performance rankings and
listings reported in newspapers or national business and financial publications,
such as Barron's,  Business Week, Consumers Digest, Consumer Reports,  Financial
World, Forbes, Fortune,  Investors Business Daily,  Kiplinger's Personal Finance
Magazine,  Money Magazine, New York Times, Smart Money, USA Today, U.S. News and
World Report, The Wall Street Journal,  and Worth may also be cited (if the Fund
is  listed  in any  such  publication)  or  used  for  comparison,  as  well  as
performance listings and rankings from various other sources including Bloomberg
Financial Markets, CDA/Wiesenberger,  Donoghue's Mutual Fund Almanac, Investment
Company  Data,  Inc.,  Johnson's  Charts,  Kanon  Bloch  Carre  and Co.,  Lipper
Analytical  Services,  Inc.,  Micropal,  Inc.,  Morningstar,   Inc.,  Schabacker
Investment Management and Towers Data Systems, Inc.

In  addition,  from  time  to  time  quotations  from  articles  from  financial
publications  such as those listed above may be used in  advertisements in sales
literature, or in reports to shareholders of the Fund.

The Fund may also present, from time to time,  historical  information depicting
the value of a  hypothetical  account  in one or more  classes of the Fund since
such Fund's inception.

In  presenting  investment  results,  the Fund may also  include  references  to
certain  financial  planning  concepts,  including  (a) an  investor's  need  to
evaluate his financial  assets and  obligations to determine how much to invest;
(b) his need to analyze the objectives of various investments to determine where
to invest;  and (c) his need to analyze his time frame for future  capital needs
to determine how long to invest. The investor controls these three factors,  all
of which affect the use of investments in building assets.

One of the primary  methods  used to measure the  performance  of a class of the
Fund is "total  return."  "Total return" will normally  represent the percentage
change in value of an account, or of a hypothetical investment in a class of the
Fund, over any period up to the lifetime of that class of the Fund. Total return
calculations  will usually assume the  reinvestment of all dividends and capital
gains  distributions and will be expressed as a percentage  increase or decrease
from an  initial  value,  for the  entire  period  or for one or more  specified
periods within the entire period.  Total return  percentages for periods of less
than one year will usually be annualized;  total return  percentages for periods
longer than one year will usually be accompanied by total return percentages for
each year within the period and/or by the average annual compounded total 


                                      -27-
<PAGE>

return for the period.  The income and capital  components of a given return may
be separated  and  portrayed in a variety of ways in order to  illustrate  their
relative  significance.  Performance  may also be  portrayed in terms of cash or
investment values,  without  percentages.  Past performance cannot guarantee any
particular future result.

The Fund's  average  annual total return  quotations  for each of its classes as
that  information  may  appear  in the  Fund's  Prospectus,  this  Statement  of
Additional  Information  or in advertising  are  calculated by standard  methods
prescribed by the Commission.

Standardized Average Annual Total Return Quotations

Average  annual total return  quotations for Class A, Class B and Class C shares
are computed by finding the average annual compounded rates of return that would
cause  a  hypothetical  investment  in the  class  made  on the  first  day of a
designated  period (assuming all dividends and  distributions are reinvested) to
equal the ending  redeemable value of such  hypothetical  investment on the last
day of the designated period in accordance with the following formula:

                            P(1+T)n = ERV

Where:            P        =   a hypothetical  initial  payment of $1,000,  less
                               the  maximum  sales  load of  $57.50  for Class A
                               shares or the  deduction  of the CDSC for Class B
                               and Class C shares at the end of the period.

                  T        =   average annual total return

                  n        =   number of years

                  ERV      =   ending redeemable value of the hypothetical $1000
                               initial  payment  made  at the  beginning  of the
                               designated period (or fractional portion thereof)

For  purposes of the above  computation,  it is assumed that all  dividends  and
distributions  made by the Fund are  reinvested  at net asset  value  during the
designated  period.  The average annual total return  quotation is determined to
the nearest 1/100 of 1%.

In determining the average annual total return  (calculated as provided  above),
recurring  fees,  if any,  that are  charged to all  shareholder  accounts  of a
particular  class are taken into  consideration.  For any account fees that vary
with the size of the  account,  the account  fee used for  purposes of the above
computation  is assumed  to be the fee that  would be charged to a class's  mean
account size.

   
         The average  annual total return for the Class A shares of the Fund for
the one-year, five-year, ten-year and life-of-fund (inception November 19, 1982)
periods ended September 30, 1995 were 9.53%, 16.62%, 12.24% and 12.93%. No Class
B or Class C shares were outstanding prior to February 1, 1996.
    

                                      -28-
<PAGE>


Automated Information Line

FactFoneSM, Pioneer's 24-hour automated information line, allows shareholders to
dial toll-free 1-800-225-4321 and hear recorded fund information, including:

         o       net asset value prices for all Pioneer mutual funds;

         o       annualized 30-day yields on Pioneer's fixed income funds;

         o       annualized 7-day yields and 7-day effective  (compound)  yields
                 for Pioneer's money market funds; and

         o       dividends and capital gains distributions on all Pioneer mutual
                 funds.

Yields are calculated in accordance with Commission mandated standard formulas.

In addition, by using a personal identification number ("PIN"), shareholders may
enter  purchases,  exchanges and  redemptions,  access their account balance and
last three transactions and may order a duplicate statement. See "FactFoneSM" in
the Prospectus for more information.

All  performance  numbers   communicated   through  FactFoneSM   represent  past
performance,  and  figures  for  all  quoted  bond  funds  include  the  maximum
applicable sales charge. A shareholder's actual yield and total return will vary
with  changing  market  conditions.  The  value of Class A,  Class B and Class C
shares  (except for Pioneer money market funds,  which seek a stable $1.00 share
price) will also vary,  and such shares may be worth more or less at  redemption
than their original cost.

17.  FINANCIAL STATEMENTS

The Fund's financial statements for the fiscal year ended September 30, 1995 and
the Report of  Independent  Public  Accountants  included in this  Statement  of
Additional  Information have been included in reliance upon the report of Arthur
Andersen,  LLP,  independent  public  accountants,  as experts in accounting and
auditing.  The  report  of  Independent  Accountants  and  financial  statements
included in the Fund's  Annual  Report for the fiscal year ended  September  30,
1995, filed  electronically  on November 29, 1995, are incorporated by reference
into this Statement of Additional Information. The financial highlights table in
the Prospectus and the financial  statements  incorporated by reference into the
Prospectus  and  Statement of Additional  Information  have been so included and
incorporated in reliance upon the report of Arthur  Andersen,  LLP,  independent
public  accountants,  given on their  authority  as  experts in  accounting  and
auditing.


                                      -29-
<PAGE>


                                   APPENDIX A


                          Description of Bond Ratings1

                        Moody's Investor's Service, Inc.2

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

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

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

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

- ---------------------------------------------
1 The  ratings  indicated  herein are  believed  to be the most  recent  ratings
available at the date of this Prospectus for the securities listed.  Ratings are
generally given to securities at the time of issuance. While the rating agencies
may from time to time revise such  ratings,  they  undertake no obligation to do
so, and the ratings indicated do not necessarily represent ratings which will be
given to these securities on the date of the Fund's fiscal year-end.

2 Rates bonds of issuers  which have  $600,000 or more of debt,  except bonds of
educational  institutions,  projects  under  construction,  enterprises  without
established  earnings  records and  situations  where current  financial data is
unavailable.


                                      -30-
<PAGE>

<TABLE>
<CAPTION>
                                                             Pioneer Mid-Cap Fund

    Date      Initial        Offering Price      Sales Charge    Shares Purchased      Net Asset Value   Initial Net Asset
             Investment                           Included                                Per Share           Value
                                                                                                
  <S>            <C>             <C>               <C>                <C>                  <C>                <C>              
  11/19/82       $10,000        $10.61             5.75%              942.507              $10.00             $9,425


                                                    Dividends and Capital Gains Reinvested


                                                                 Value of Shares

   Date        From Investment       From Cap. Gains         From Dividends       Total Value
                                        Reinvested             Reinvested

 <S>               <C>                     <C>                    <C>              <C>   
 12/31/82           $9,425                  $0                     $0               $9,425
 12/31/83          $11,941                 $161                   $140              $12,242
 12/31/84          $12,055                 $335                   $438              $12,828
 12/31/85          $14,194                 $803                   $917              $15,914
 12/31/86          $14,307                $2,094                 $1,295             $17,696
 12/31/87          $11,414                $3,381                 $1,502             $16,297
 12/31/88          $13,874                $5,060                 $2,251             $21,185
 12/31/89          $15,108                $7,311                 $3,100             $25,519
 12/31/90          $12,055                $7,039                 $3,119             $22,213
 12/31/91          $15,919                $9,579                 $4,813             $30,311
 12/31/92          $18,190               $12,106                 $6,099             $36,395
 12/31/93          $19,416               $15,856                 $7,012             $42,284
 12/31/94          $16,984               $16,297                 $6,612             $39,893
 12/31/95          $18,407               $21,522                 $7,673             $47,602


</TABLE>

                                      -31-
<PAGE>


                             COMPARATIVE PERFORMANCE
                               INDEX DESCRIPTIONS

The following  securities  indices are well-known,  unmanaged measures of market
performance. Advertisements and sales literature for the Fund may refer to these
indices or may present  comparisons  between the performance of the Fund and one
or more of the indices.  Other indices may be used, if appropriate.  The indices
are not available for direct  investment.  The data presented is not meant to be
indicative of the  performance of the Fund,  reflects past  performance and does
not guarantee future results.

S&P 500
This index is a readily available, carefully constructed,  market value weighted
benchmark  of common  stock  performance.  Currently,  the S&P  Composite  Index
includes  500 of the  largest  stocks  (in terms of stock  market  value) in the
United States; prior to March 1957 it consisted of 90 of the largest stocks.

DOW JONES INDUSTRIAL AVERAGE
This is a total return index based on the performance of 30 blue chip stocks.

U.S. SMALL STOCK INDEX
This index is a market value  weighted  index of the ninth and tenth  deciles of
the New York Stock  Exchange  (NYSE),  plus stocks listed on the American  Stock
Exchange (AMEX) and over-the-counter  (OTC) with the same or less capitalization
as the upper bound of the NYSE ninth decile.

U.S. INFLATION
The  Consumer  Price  Index  for All Urban  Consumers  (CPI-U),  not  seasonally
adjusted, is used to measure inflation,  which is the rate of change of consumer
goods prices.  Unfortunately,  the  inflation  rate as derived by the CPI is not
measured  over the same period as the other asset  returns.  All of the security
returns are measured  from one  month-end to the next  month-end.  CPI commodity
prices are collected during the month.  Thus,  measured  inflation rates lag the
other  series  by about  one-half  month.  Prior to  January  1978,  the CPI (as
compared with CPI-U) was used.  Both inflation  measures are  constructed by the
U.S. Department of Labor, Bureau of Labor Statistics, Washington, DC.

S&P/BARRA INDEXES
The S&P/BARRA Growth and Value Indexes are constructed by dividing the stocks in
the S&P 500 Index according to price-to-book  ratios.  The Growth Index contains
stocks with higher  price-to-book  ratios,  and the Value Index contains  stocks
with  lower  price-to-book   ratios.  Both  indexes  are  market  capitalization
weighted.

LONG-TERM U.S. GOVERNMENT BONDS
The  total  returns  on  long-term  government  bonds  from  1977  to  1991  are
constructed  with data from The Wall Street Journal.  Over  1926-1976,  data are
obtained  from the  Government  bond file at the Center for Research in Security
Prices (CRSP), Graduate School of Business,  University of Chicago. Each year, a
one-bond  portfolio  with a term of  approximately  20  years  and a  reasonably
current  coupon  was used,  and whose  returns  did not  reflect  potential  tax
benefits,  impaired  negotiability,  or special  redemption or call  privileges.
Where  callable  bonds had to be used,  the term of the bond was assumed to be a
simple  average of the maturity and first call dates 


                                      -32-
<PAGE>

                             COMPARATIVE PERFORMANCE
                               INDEX DESCRIPTIONS


minus the current  date.  The bond was "held" for the calendar  year and returns
were  computed.  Total returns for 1977-1991 are calculated as the change in the
flat price or and-interest price.

INTERMEDIATE-TERM U.S. GOVERNMENT BONDS
Total  returns  of the  intermediate-term  government  bonds for  1977-1991  are
calculated from The Wall Street Journal prices,  using the change in flat price.
Returns from 1934-1986 are obtained from the CRSP Government Bond File.

Each year,  one-bond  portfolios  are formed,  the bond  chosen is the  shortest
noncallable  bond with a maturity not less than 5 years, and this bond is "held"
for the  calendar  year.  Monthly  returns are  computed.  (Bonds with  impaired
negotiability or special redemption  privileges are omitted, as are partially or
fully  tax-exempt  bonds starting with 1943.) From  1934-1942,  almost all bonds
with maturities near 5 years were partially or full tax-exempt and were selected
using the rules described  above.  Personal tax rates were generally low in that
period,  so that yields on  tax-exempt  bonds were  similar to yields on taxable
bonds. From 1926-1933, there are few bonds suitable for construction of a series
with a 5-year  maturity.  For this period,  five year bond yield  estimates  are
used.

MSCI
Morgan  Stanley  Capital  International   Indices,   developed  by  the  Capital
International  S.A., are based on share prices of some 1470 companies  listed on
the stock exchanges around the world.

Countries in the MSCI EAFE Portfolio are:
Australia;  Austria;  Belgium;  Denmark;  Finland;  France;  Germany; Hong Kong;
Italy;  Japan;  Netherlands;  N.  Zealand;  Norway;  Singapore/Malaysia;  Spain;
Sweden; Switzerland; United Kingdom.

6 MONTH CDs
Data sources include the Federal Reserve Bulletin and The Wall Street Journal.

LONG-TERM U.S. CORPORATE BONDS
For  1969-1991,  corporate  bond total  returns are  represented  by the Salomon
Brothers Long-Term  High-Grade  Corporate Bond Index. Since most large corporate
bond  transactions  take place over the  counter,  a major dealer is the natural
source of these data. The index includes  nearly all Aaa- and Aa-rated bonds. If
a bond is  downgraded  during a  particular  month,  its return for the month is
included in the index before removing the bond from future portfolios.

Over  1926-1968  the total  returns  were  calculated  by  summing  the  capital
appreciation returns and the income returns. For the period 1946-1968,  Ibbotson
and Sinquefield  backdated the Salomon Brothers' index,  using Salomon Brothers'
monthly  yield  data with a  methodology  similar  to that used by  Salomon  for
1969-1991. Capital appreciation returns were calculated from yields assuming (at
the beginning of each monthly holding period) a 20-year  maturity,  a bond price
equal to par,  and a  coupon  equal to the  beginning-of-period  yield.  For the
period 1926-1945, the Standard and Poor's monthly High-Grade Corporate Composite
yield data were used,  assuming a 4 percent coupon and a 20-year  maturity.  The
conventional  present-value  formula  for  bond  price  for  the  beginning  and
end-of-month  prices was used.  (This formula is presented in Ross,  Stephen A.,
and Randolph W. Westerfield,  Corporate Finance, Times


                                      -33-
<PAGE>

                             COMPARATIVE PERFORMANCE
                               INDEX DESCRIPTIONS


Mirror/Mosby, St. Louis, 1990, p. 97 ["Level-Coupon Bonds"].) The monthly income
return was assumed to be one-twelfth the coupon.

U.S. (30 DAY) TREASURY BILLS
For the U.S. Treasury bill index, data from The Wall Street Journal are used for
1977-1991;  the CRSP U.S.  Government  Bond File is the source until 1976.  Each
month a one-bill  portfolio  containing the  shortest-term  bill having not less
than one month to maturity is constructed. (The bill's original term to maturity
is not relevant.) To measure holding period returns for the one-bill  portfolio,
the bill is priced as of the last trading day of the previous  month-end  and as
of the last trading day of the current month.

NAREIT-EQUITY INDEX
All of the  data is  based  upon the last  closing  price of the  month  for all
tax-qualified  REITs  listed  on the  NYSE,  AMSE  and the  NASDAQ.  The data is
market-value-weighted.  Prior to 1987 REITs were added to the index the  January
following  their  listing.  Since 1987 Newly formed or listed REITs are added to
the total  shares  outstanding  figure in the month that the shares are  issued.
Only  common  shares  issued by the REIT are  included  in the index.  The total
return  calculation  is based upon the weighing at the  beginning of the period.
Only  those  REITs  listed for the  entire  period are used in the total  return
calculation.  Dividends are included in the month based upon their payment date.
There is no smoothing of income. Liquidating dividends, whether full or partial,
are treated as income.

RUSSELL 2000 SMALL STOCK INDEX
Index of the 2,000 smallest  stocks in the Russell 3000 Index (TM); the smallest
company has a market capitalization of approximately $13 million.
The Russell  30000 is comprised of the 3,000  largest US companies as determined
by market capitalization representing approximately 98% of the US equity market.
The largest company in the index has a market capitalization of $67 billion. The
Russell Indexes (TM) are reconstituted  annually as of June 1st, based on May 31
market capitalization rankings.

WILSHIRE REAL ESTATE SECURITIES INDEX
The Wilshire Real Estate  Securities  Index is a market  capitalization-weighted
index which measures the performance of more than 85 securities.

The index  contains  performance  data on five  major  categories  of  property;
office, retail, industrial, apartment and miscellaneous. Additionally, the Index
has real estate portfolio encumbered by 16% third party mortgages. The companies
in the WRESEC are 79% equity  and hybrid  REIT's and 21% real  estate  operating
companies. The capitalization is 47% NYSE, 33% AMEX and 20% OTC."

STANDARD & POOR'S MIDCAP 400 INDEX
The Standard and Poor's MidCap 400 Index is a  market-value-weighted  index. The
performance  data for the MidCap 400 Index were  calculated by taking the stocks
presently in the MidCap 400 Index and tracking them backwards in time as long as
there were prices reported.  No attempt was made to determine what stocks "might
have  been" in the  MidCap  400  Index  five or ten  years  ago had it  existed.
Dividends  are  reinvested  on a monthly  basis prior to June 30, 1991,  and are
reinvested daily thereafter.


                                      -34-
<PAGE>

                             COMPARATIVE PERFORMANCE
                               INDEX DESCRIPTIONS


The S&P MidCap 400 Index and the S&P 500 together represent approximately 85% of
the total market capitalization of stocks traded in the United States.

BANK SAVINGS ACCOUNT
Data sources include the U.S. League of Savings Institutions Sourcebook; average
annual yield on savings  deposits in FSLIC [FDIC] insured  savings  institutions
for the years 1963-1987 and The Wall Street Journal for the years 1988-1994.






Source:           Ibbotson Associates


                                      -35-
<PAGE>

                  PERFORMANCE STATISTICS - TOTAL RETURN PERCENT


          S&P 500       Dow      U.S. Small                  S&P/     S&P/   
                       Jones       Stock         U.S.       BARRA    BARRA
                    Industrials    Index      Inflation    Growth    Value
Dec 1928   43.61       55.38       39.69       -0.97         N/A      N/A
Dec 1929   -8.42      -13.64      -51.36        0.20         N/A      N/A
Dec 1930  -24.90      -30.22      -38.15       -6.03         N/A      N/A
Dec 1931  -43.34      -49.03      -49.75       -9.52         N/A      N/A
Dec 1932   -8.19      -16.88       -5.39      -10.30         N/A      N/A
Dec 1933   53.99       73.71      142.87        0.51         N/A      N/A
Dec 1934   -1.44        8.07       24.22        2.03         N/A      N/A
Dec 1935   47.67       43.77       40.19        2.99         N/A      N/A
Dec 1936   33.92       30.23       64.80        1.21         N/A      N/A
Dec 1937  -35.03      -28.88      -58.01        3.10         N/A      N/A
Dec 1938   31.12       33.16       32.80       -2.78         N/A      N/A
Dec 1939   -0.41        1.31        0.35       -0.48         N/A      N/A
Dec 1940   -9.78       -7.96       -5.16        0.96         N/A      N/A
Dec 1941  -11.59       -9.88       -9.00        9.72         N/A      N/A
Dec 1942   20.34       14.12       44.51        9.29         N/A      N/A
Dec 1943   25.90       19.06       88.37        3.16         N/A      N/A
Dec 1944   19.75       17.19       53.72        2.11         N/A      N/A
Dec 1945   36.44       31.60       73.61        2.25         N/A      N/A
Dec 1946   -8.07       -4.40      -11.63       18.16         N/A      N/A
Dec 1947    5.71        7.61        0.92        9.01         N/A      N/A
Dec 1948    5.50        4.27       -2.11        2.71         N/A      N/A
Dec 1949   18.79       20.92       19.75       -1.80         N/A      N/A
Dec 1950   31.71       26.40       38.75        5.79         N/A      N/A
Dec 1951   24.02       21.77        7.80        5.87         N/A      N/A
Dec 1952   18.37       14.58        3.03        0.88         N/A      N/A
Dec 1953   -0.99        2.02       -6.49        0.62         N/A      N/A
Dec 1954   52.62       51.25       60.58       -0.50         N/A      N/A
Dec 1955   31.56       26.58       20.44        0.37         N/A      N/A
Dec 1956    6.56        7.10        4.28        2.86         N/A      N/A
Dec 1957  -10.78       -8.63      -14.57        3.02         N/A      N/A
Dec 1958   43.36       39.31       64.89        1.76         N/A      N/A
Dec 1959   11.96       20.21       16.40        1.50         N/A      N/A
Dec 1960    0.47       -6.14       -3.29        1.48         N/A      N/A
Dec 1961   26.89       22.60       32.09        0.67         N/A      N/A
Dec 1962   -8.73       -7.43      -11.90        1.22         N/A      N/A
Dec 1963   22.80       20.83       23.57        1.65         N/A      N/A
Dec 1964   16.48       18.85       23.52        1.19         N/A      N/A
Dec 1965   12.45       14.39       41.75        1.92         N/A      N/A
Dec 1966  -10.06      -15.78       -7.01        3.35         N/A      N/A
Dec 1967   23.98       19.16       83.57        3.04         N/A      N/A
Dec 1968   11.06        7.93       35.97        4.72         N/A      N/A


                                      -36-
<PAGE>

                  PERFORMANCE STATISTICS - TOTAL RETURN PERCENT


          S&P 500       Dow      U.S. Small                  S&P/     S&P/   
                       Jones       Stock         U.S.       BARRA    BARRA
                    Industrials    Index      Inflation    Growth    Value

Dec 1969   -8.50      -11.78      -25.05        6.11        N/A      N/A
Dec 1970    4.01        9.21      -17.43        5.49        N/A      N/A
Dec 1971   14.31        9.83       16.50        3.36        N/A      N/A
Dec 1972   18.98       18.48        4.43        3.41        N/A      N/A
Dec 1973  -14.66      -13.28      -30.90        8.80        N/A      N/A
Dec 1974  -26.47      -23.58      -19.95       12.20        N/A      N/A
Dec 1975   37.20       44.75       52.82        7.01       31.72    43.38
Dec 1976   23.84       22.82       57.38        4.81       13.84    34.93
Dec 1977   -7.18      -12.84       25.38        6.77      -11.82    -2.57
Dec 1978    6.56        2.79       23.46        9.03        6.78     6.16
Dec 1979   18.44       10.55       43.46       13.31       15.72    21.16
Dec 1980   32.42       22.17       39.88       12.40       39.40    23.59
Dec 1981   -4.91       -3.57       13.88        8.94       -9.81     0.02
Dec 1982   21.41       27.11       28.01        3.87       22.03    21.04
Dec 1983   22.51       25.97       39.67        3.80       16.24    28.89
Dec 1984    6.27        1.31       -6.67        3.95        2.33    10.52
Dec 1985   32.16       33.55       24.66        3.77       33.31    29.68
Dec 1986   18.47       27.10        6.85        1.13       14.50    21.67
Dec 1987    5.23        5.48       -9.30        4.41        6.50     3.68
Dec 1988   16.81       16.14       22.87        4.42       11.95    21.67
Dec 1989   31.49       32.19       10.18        4.65       36.40    26.13
Dec 1990   -3.17       -0.56      -21.56        6.11        0.20    -6.85
Dec 1991   30.55       24.19       44.63        3.06       38.37    22.56
Dec 1992    7.67        7.41       23.35        2.90        5.07    10.53
Dec 1993    9.99       16.94       20.98        2.75        1.68    18.60
Dec 1994    1.31        5.06        3.11        2.78        3.13    -0.64
Dec 1995   37.43       36.84       34.46        2.74       38.13    36.99


                                      -37-
<PAGE>

                  PERFORMANCE STATISTICS - TOTAL RETURN PERCENT



                         Intermediate      MSCI               Long-
          Long-Term       -Term U.S.       EAFE        6     Term U.S.    U.S.
          U.S. Gov't      Government     - Net of    MONTH   Corporate  (30 Day)
            Bonds           Bonds          Taxes      CDs      Bonds    T- Bill 
     
Dec 1925     N/A              N/A           N/A       N/A      N/A      N/A
Dec 1926     7.77             5.38          N/A       N/A      7.37     3.27
Dec 1927     8.93             4.52          N/A       N/A      7.44     3.12
Dec 1928     0.1              0.92          N/A       N/A      2.84     3.56
Dec 1929     3.42             6.01          N/A       N/A      3.27     4.75
Dec 1930     4.66             6.72          N/A       N/A      7.98     2.41
Dec 1931    -5.31            -2.32          N/A       N/A      -1.85    1.07
Dec 1932    16.84             8.81          N/A       N/A      10.82    0.96
Dec 1933    -0.07             1.83          N/A       N/A      10.38    0.30
Dec 1934    10.03             9.00          N/A       N/A      13.84    0.16
Dec 1935     4.98             7.01          N/A       N/A      9.61     0.17
Dec 1936     7.52             3.06          N/A       N/A      6.74     0.18
Dec 1937     0.23             1.56          N/A       N/A      2.75     0.31
Dec 1938     5.53             6.23          N/A       N/A      6.13    -0.02
Dec 1939     5.94             4.52          N/A       N/A      3.97     0.02
Dec 1940     6.09             2.96          N/A       N/A      3.39     0.00
Dec 1941     0.93             0.50          N/A       N/A      2.73     0.06
Dec 1942     3.22             1.94          N/A       N/A      2.60     0.27
Dec 1943     2.08             2.81          N/A       N/A      2.83     0.35
Dec 1944     2.81             1.80          N/A       N/A      4.73     0.33
Dec 1945    10.73             2.22          N/A       N/A      4.08     0.33
Dec 1946    -0.10             1.00          N/A       N/A      1.72     0.35
Dec 1947    -2.62             0.91          N/A       N/A     -2.34     0.50
Dec 1948     3.40             1.85          N/A       N/A      4.14     0.81 
Dec 1949     6.45             2.32          N/A       N/A      3.31     1.10
Dec 1950     0.06             0.70          N/A       N/A      2.12     1.20
Dec 1951    -3.93             0.36          N/A       N/A     -2.69     1.49
Dec 1952     1.16             1.63          N/A       N/A      3.52     1.66
Dec 1953     3.64             3.23          N/A       N/A      3.41     1.82
Dec 1954     7.19             2.68          N/A       N/A      5.39     0.86
Dec 1955    -1.29            -0.65          N/A       N/A      0.48     1.57
Dec 1956    -5.59            -0.42          N/A       N/A     -6.81     2.46
Dec 1957     7.46             7.84          N/A       N/A      8.71     3.14
Dec 1958    -6.09            -1.29          N/A       N/A     -2.22     1.54
Dec 1959    -2.26            -0.39          N/A       N/A     -0.97     2.95
Dec 1960    13.78            11.76          N/A       N/A      9.07     2.66
Dec 1961     0.97             1.85          N/A       N/A      4.82     2.13
Dec 1962     6.89             5.56          N/A       N/A      7.95     2.73
Dec 1963     1.21             1.64          N/A       N/A      2.19     3.12
Dec 1964     3.51             4.04          N/A      4.18      4.77     3.54
Dec 1965     0.71             1.02          N/A      4.68     -0.46     3.93



                                      -38-
<PAGE>

                  PERFORMANCE STATISTICS - TOTAL RETURN PERCENT


                         Intermediate      MSCI               Long-
          Long-Term       -Term U.S.       EAFE        6     Term U.S.    U.S.
          U.S. Gov't      Government     - Net of    MONTH   Corporate  (30 Day)
            Bonds           Bonds          Taxes      CDs      Bonds    T- Bill 
                                                                                
Dec 1966     3.65           4.69            N/A       5.75     0.20       4.76  
Dec 1967    -9.18           1.01            N/A       5.48    -4.95       4.21  
Dec 1968    -0.26           4.54            N/A       6.44     2.57       5.21 
Dec 1969    -5.07          -0.74            N/A       8.71    -8.09       6.58
Dec 1970    12.11          16.86          -11.66      7.06    18.37       6.52
Dec 1971    13.23           8.72           29.59      5.36    11.01       4.39
Dec 1972     5.69           5.16           36.35      5.38     7.26       3.84
Dec 1973    -1.11           4.61          -14.92      8.60     1.14       6.93
Dec 1974     4.35           5.69          -23.16     10.20    -3.06       8.00
Dec 1975     9.20           7.83           35.39      6.51    14.64       5.80
Dec 1976    16.75          12.87            2.54      5.22    18.65       5.08
Dec 1977    -0.69           1.41           18.06      6.12     1.71       5.12
Dec 1978    -1.18           3.49           32.62     10.21    -0.07       7.18
Dec 1979    -1.23           4.09            4.75     11.90    -4.18      10.38
Dec 1980    -3.95           3.91           22.58     12.33    -2.76      11.24
Dec 1981     1.86           9.45           -2.28     15.50    -1.24      14.71
Dec 1982    40.36          29.1            -1.86     12.18    42.56      10.54
Dec 1983     0.65           7.41           23.69      9.65     6.26       8.80
Dec 1984    15.48          14.02            7.38     10.65    16.86       9.85
Dec 1985    30.97          20.33           56.16      7.82    30.09       7.72
Dec 1986    24.53          15.14           69.44      6.30    19.85       6.16
Dec 1987    -2.71           2.90           24.63      6.58    -0.27       5.47
Dec 1988     9.67           6.10           28.27      8.15    10.70       6.35
Dec 1989    18.11          13.29           10.54      8.27    16.23       8.37
Dec 1990     6.18           9.73          -23.45      7.85     6.78       7.81
Dec 1991    19.3           15.46           12.13      4.95    19.89       5.60
Dec 1992     8.05           7.19          -12.17      3.27     9.39       3.51
Dec 1993    18.24          11.24           32.56      2.88    13.19       2.90
Dec 1994    -7.77          -5.14            7.78      5.40    -5.76       3.90
Dec 1995    31.67          16.8            11.21      5.21    26.39       5.60
                                                                                
                                                                                

                                      -39-
<PAGE>

                  PERFORMANCE STATISTICS - TOTAL RETURN PERCENT
     
                                           S & P    Bank
             NAREIT -  Russell  Wilshire   Midcap  Savings 
             Equity     2000  Real Estate   400    Account
     
Dec 1925        N/A      N/A      N/A     N/A      N/A
Dec 1926        N/A      N/A      N/A     N/A      N/A
Dec 1927        N/A      N/A      N/A     N/A      N/A
Dec 1928        N/A      N/A      N/A     N/A      N/A
Dec 1929        N/A      N/A      N/A     N/A      N/A
Dec 1930        N/A      N/A      N/A     N/A      5.30
Dec 1931        N/A      N/A      N/A     N/A      5.10
Dec 1932        N/A      N/A      N/A     N/A      4.10
Dec 1933        N/A      N/A      N/A     N/A      3.40
Dec 1934        N/A      N/A      N/A     N/A      3.50
Dec 1935        N/A      N/A      N/A     N/A      3.10
Dec 1936        N/A      N/A      N/A     N/A      3.20
Dec 1937        N/A      N/A      N/A     N/A      3.50
Dec 1938        N/A      N/A      N/A     N/A      3.50
Dec 1939        N/A      N/A      N/A     N/A      3.40
Dec 1940        N/A      N/A      N/A     N/A      3.30
Dec 1941        N/A      N/A      N/A     N/A      3.10
Dec 1942        N/A      N/A      N/A     N/A      3.00
Dec 1943        N/A      N/A      N/A     N/A      2.90
Dec 1944        N/A      N/A      N/A     N/A      2.80
Dec 1945        N/A      N/A      N/A     N/A      2.50
Dec 1946        N/A      N/A      N/A     N/A      2.20
Dec 1947        N/A      N/A      N/A     N/A      2.30
Dec 1948        N/A      N/A      N/A     N/A      2.30
Dec 1949        N/A      N/A      N/A     N/A      2.40
Dec 1950        N/A      N/A      N/A     N/A      2.50
Dec 1951        N/A      N/A      N/A     N/A      2.60
Dec 1952        N/A      N/A      N/A     N/A      2.70
Dec 1953        N/A      N/A      N/A     N/A      2.80
Dec 1954        N/A      N/A      N/A     N/A      2.90
Dec 1955        N/A      N/A      N/A     N/A      2.90
Dec 1956        N/A      N/A      N/A     N/A      3.00
Dec 1957        N/A      N/A      N/A     N/A      3.30
Dec 1958        N/A      N/A      N/A     N/A      3.38
Dec 1959        N/A      N/A      N/A     N/A      3.53
Dec 1960        N/A      N/A      N/A     N/A      3.86
Dec 1961        N/A      N/A      N/A     N/A      3.90
Dec 1962        N/A      N/A      N/A     N/A      4.08
Dec 1963        N/A      N/A      N/A     N/A      4.17
Dec 1964        N/A      N/A      N/A     N/A      4.19
Dec 1965        N/A      N/A      N/A     N/A      4.23
Dec 1966        N/A      N/A      N/A     N/A      4.45
Dec 1967        N/A      N/A      N/A     N/A      4.67
Dec 1968        N/A      N/A      N/A     N/A      4.68
Dec 1969        N/A      N/A      N/A     N/A      4.80
     


                                      -40-
<PAGE>

                  PERFORMANCE STATISTICS - TOTAL RETURN PERCENT


                                           S & P    Bank
             NAREIT -  Russell  Wilshire   Midcap  Savings 
             Equity     2000  Real Estate   400    Account
          Bank Savings Account
     
Dec 1970        N/A      N/A      N/A     N/A      5.14
Dec 1971        N/A      N/A      N/A     N/A      5.30
Dec 1972        8.01     N/A      N/A     N/A      5.37
Dec 1973       -15.52    N/A      N/A     N/A      5.51
Dec 1974       -21.40    N/A      N/A     N/A      5.96
Dec 1975        19.30    N/A      N/A     N/A      6.21
Dec 1976        47.59    N/A      N/A     N/A      6.23
Dec 1977        22.42    N/A      N/A     N/A      6.39
Dec 1978        10.34    N/A      13.04   N/A      6.56
Dec 1979        35.86    43.09    70.81   N/A      7.29
Dec 1980        24.37    38.58    22.08   N/A      8.78
Dec 1981         6.00     2.03     7.18   N/A     10.71
Dec 1982        21.60    24.95    24.47   22.68   11.19
Dec 1983        30.64    29.13    27.61   26.10    9.71
Dec 1984        20.93    -7.30    20.64    1.18    9.92
Dec 1985        19.10    31.05    22.20   35.58    9.02
Dec 1986        19.16     5.68    20.30   16.21    7.84
Dec 1987        -3.64    -8.77    -7.86   -2.03    6.92
Dec 1988        13.49    24.89    24.18   20.87    7.20
Dec 1989         8.84    16.24     2.37   35.54    7.91
Dec 1990       -15.35   -19.51   -33.46   -5.12    7.80
Dec 1991        35.7     46.05    20.03    50.1    4.61
Dec 1992        14.59    18.41     7.36    11.91   2.89
Dec 1993        19.65    18.91    15.24    13.96   2.73
Dec 1994         3.17    -1.82     1.64    -3.57   4.96
Dec 1995        15.27    28.44    13.65    30.94   5.24
     
Source:  Ibbotson Associates
          


                                      -41-
<PAGE>

   
                                   APPENDIX B

                            OTHER PIONEER INFORMATION

         The  Pioneer  group of mutual  funds was  established  in 1928 with the
creation  of Pioneer  Fund.  Pioneer  is one of the oldest and most  experienced
money managers in the United States.

         As of December 31, 1995, PMC employed a professional  investment  staff
of 44, with a combined average of 15 years' experience in the financial services
industry.

         Total assets of all Pioneer  mutual  funds at December  31, 1995,  were
approximately $12 billion  representing  982,369 shareholder  accounts - 637,060
non-retirement accounts and 345,309 retirement accounts.
    






                                      -42-
<PAGE>

                                    FORM N-1A

                            PART C. OTHER INFORMATION


Item 24.  Financial Statements and Exhibits

         (a) Financial Statements:

         The financial  statements of the Registrant  have been  incorporated by
         reference  into Parts A (in part) and B from the 1995 Annual  Report to
         Shareholders dated September 30, 1995.

         (b) Exhibits:

   
              1.     Agreement and Declaration of Trust

              2.     By-Laws
    

              3.     None

   
              4.     Specimen Share Certificate

              5.     Management Contract

              6.1    Underwriting Agreement

              6.2    Form of Dealer Sales Agreement
    

              7.     None

   
              8.     Form of Custodian Agreement with Brown Brothers Harriman &
                     Co.

              9.     Investment Company Service Agreement

              10.    Legal Opinion of Morris, Nichols, Arsht & Tunnell
    

              11.    Consent of Arthur Andersen LLP

              12.    None

   
              13.    Form of Stock Purchase Agreement*
    

              14.    None

                                      C-1
<PAGE>

   
              15.1   Class A Distribution Plan

              15.2   Class B Distribution Plan

              15.3   Class C Distribution Plan
    

              16.    Description of Average Annual Total Return*

              17.    Financial Data Schedule

   
              18.    Multiple Class Plan Pursuant to Rule 18f-3
    

              19.    Powers of Attorney

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

   
         * Previously  filed.  Incorporated by reference from the exhibits filed
with  the  Registration  Statement  (File  No.  2-79140),  as  amended,  of  the
Registrant.
    


Item 25. Persons Controlled By or Under
         Common Control With Registrant

         The  Pioneer  Group,  Inc.,  a  publicly-traded   Delaware  corporation
("PGI"),  owns 100% of the  outstanding  capital stock of Pioneering  Management
Corporation,  a Delaware  corporation  ("PMC"),  Pioneering Services Corporation
("PSC"),  Pioneer Funds Distributor,  Inc. ("PFD"),  Pioneer Capital Corporation
("PCC"),  Pioneer Fonds  Marketing GmbH ("GmbH"),  Pioneer SBIC Corp.  ("SBIC"),
Pioneer  Associates,  Inc.,  Pioneer  International  Corporation,  Pioneer Plans
Corporation ("PPC"), Pioneer Goldfields Limited ("PGL"), and Pioneer Investments
Corporation ("PIC"), all Massachusetts  corporations.  PGI also owns 100% of the
outstanding  capital stock of Pioneer Metals and  Technology,  Inc.  ("PMT"),  a
Delaware  corporation,  Pioneer Fonds Marketing GmbH, a German corporation,  and
Pioneer First Polish Trust Fund Joint Stock Company ("First  Polish"),  a Polish
corporation.  PGI owns 90% of the  outstanding  shares of  Teberebie  Goldfields
Limited  ("TGL").  Pioneer Fund,  Pioneer Europe Fund,  Pioneer II, Pioneer U.S.
Government Trust, Pioneer Bond Fund, Pioneer Intermediate Tax-Free Fund, Pioneer
Growth Trust,  Pioneer  International  Growth Fund,  Pioneer  Short-Term  Income
Trust,  Pioneer  Tax-Free State Series Trust,  and the  Registrant  (each of the
foregoing  are  Massachusetts  business  trusts);  Pioneer  Real Estate  Shares,
Pioneer  Interest  Shares,  Inc. (a Nebraska  corporation);  and Pioneer  Growth
Shares,  Pioneer  Money Market  Trust,  Pioneer  Income Fund,  Pioneer  Emerging
Markets  Fund,  Pioneer  India  Fund,  Pioneer  Small  Company  Fund and Pioneer
Tax-Free  Income Fund (each of the foregoing are Delaware  business  trusts) are
all parties to management  contracts with PMC. PCC owns 100% of the  outstanding
capital  stock of SBIC.  SBIC is


                                      C-2
<PAGE>

the  sole  general  partner  of  Pioneer   Ventures   Limited   Partnership,   a
Massachusetts limited partnership.  John F. Cogan, Jr. owns approximately 15% of
the outstanding shares of PGI. Mr. Cogan is Chairman of the Board, President and
Trustee of the Registrant and of each of the Pioneer mutual funds;  Director and
President of PGI;  President  and Director of PPC,  PIC,  Pioneer  International
Corporation and PMT; Director of PCC and PSC; Chairman of the Board and Director
of PMC, PFD and TGL;  Chairman,  President and Director of PGL;  Chairman of the
Supervisory  Board of GmbH;  Chairman and Member of  Supervisory  Board of First
Polish and Chairman and Partner, Hale and Dorr.


Item 26. Number of Holders of Securities

   
         At December 31, 1995, there were approximately  [63,328] holders of the
Registrant's shares.
    


Item 27. Indemnification

   
         Except  for  the   Declaration   of  Trust  dated   January  12,  1996,
establishing the Registrant as a Trust under Delaware law, there is no contract,
arrangement  or  statute  under  which any  director,  officer,  underwriter  or
affiliated  person of the Registrant is insured or indemnified.  The Declaration
of Trust  provides  that no Trustee or officer will be  indemnified  against any
liability to which the Registrant would otherwise be subject by reason of or for
willful  misfeasance,  bad faith, gross negligence or reckless disregard of such
person's duties.
    


Item 28. Business and Other Connections of Investment Adviser

         All of the  information  required by this item is set forth in the Form
ADV, as amended, of Pioneering Management Corporation. The following sections of
such Form ADV are incorporated herein by reference:

         (a) Items 1 and 2 of Part 2;

         (b) Section IV, Business Background, of each Schedule D.


Item 29. Principal Underwriter

         (a) See Item 25 above.
         
         (b) Directors and Officers of PFD:


                                      C-3
<PAGE>



                           Positions and Offices        Positions and Offices
Name                       with Underwriter             with Registrant

John F. Cogan, Jr.         Director and Chairman        Chairman of the Board,
                                                        President and Trustee

Robert L. Butler           Director and President       None


David D. Tripple           Director                     Executive Vice-President
                                                        and Trustee

Steven M. Graziano         Senior                       None
                           Vice President

Stephen W. Long Senior     Vice President               None
                           

John W. Drachman           Vice President               None

Barry G. Knight            Vice President               None

William A. Misata          Vice President               None

Anne W. Patenaude          Vice President               None

Elizabeth B. Rice          Vice President               None

Gail A. Smyth              Vice President               None

Constance D. Spiros        Vice President               None

Marcy L. Supovitz          Vice President               None

Steven R. Berke            Assistant                    None
                           Vice President

Mary Sue Hoban             Assistant                    None
                           Vice President

William H. Keough          Treasurer                    Treasurer

Roy P. Rossi               Assistant Treasurer          None

Joseph P. Barri            Clerk                        Secretary

Robert P. Nault            Assistant Clerk              Assistant Secretary


                  (c)      Not applicable.

                                      C-4
<PAGE>



Item 30. Location of Accounts and Records

         The accounts and records are maintained at the  Registrant's  office at
60 State Street, Boston, Massachusetts; contact the Treasurer.


Item 31. Management Services

         The  Registrant  is  not a  party  to  any  management-related  service
contract,  except as described in the  Prospectus  and  Statement of  Additional
Information.


Item 32. Undertaking

         (a) Not applicable.

         (b) Not applicable.

         (c)  The  Registrant  hereby  undertakes  to  deliver  or  cause  to be
delivered with the Prospectus,  to each person to whom the Prospectus is sent or
given, a copy of the Registrant's  report to shareholders  furnished pursuant to
and meeting the  requirements of Rule 30d-1 under the Investment  Company Act of
1940,  as amended,  from which the  specified  information  is  incorporated  by
reference,  unless such person  currently holds securities of the Registrant and
otherwise has received a copy of such report, in which case the Registrant shall
state in the Prospectus  that it will furnish,  without  charge,  a copy of such
report on request,  and the name,  address and telephone number of the person to
whom such a request should be directed.



                                      C-5
<PAGE>


                                   SIGNATURES


   
         Pursuant  to the  requirements  of the  Securities  Act of 1933 and the
Investment  Company Act of 1940, the  Registrant  certifies that it meets all of
the requirements for  effectiveness of this  Post-Effective  Amendment No. 21 to
its Registration  Statement  pursuant to Rule 485(b) under the Securities Act of
1933  and  has  duly  caused  this  Post-Effective  Amendment  No.  21  to  such
Registration Statement to be signed on its behalf by the undersigned,  thereunto
duly authorized, in the City of Boston and The Commonwealth of Massachusetts, on
the 31st day of January, 1996.
    


                                       PIONEER MID-CAP FUND



                                       By:________________________________
                                          John F. Cogan, Jr.
                                          Chairman and President


         Pursuant  to the  requirements  of the  Securities  Act of  1933,  this
Post-Effective  Amendment No. 21 to the Registrant's  Registration Statement has
been signed below by the  following  persons in the  capacities  and on the date
indicated:


           Signature                                    Title



                                                  Chairman of the Board      )
John F. Cogan, Jr.                                and President              )
                                                  (Principal Executive       )
                                                  Officer)                   )
                                                                             )
                                                                             )
William H. Keough*                                Chief Financial Officer    )
William H. Keough                                 and Treasurer (Principal   )
                                                  Financial and Accounting   )
                                                  Officer)                   )
Trustees:                                                                    )
                                                                             )
                                                                             )
John F. Cogan, Jr.                                                           )
                                                                             )


                                      C-6
<PAGE>

                                                                             )
                                                                             )
Richard H. Egdahl, M.D.*                                                     )
Richard H. Egdahl, M.D.                                                      )
                                                                             )
                                                                             )
                                                                             )
Margaret B. W. Graham*                                                       )
Margaret B. W. Graham                                                        )
                                                                             )
                                                                             )
                                                                             )
John W. Kendrick*                                                            )
John W. Kendrick                                                             )
                                                                             )
                                                                             )
                                                                             )
Marguerite A. Piret*                                                         )
Marguerite A. Piret                                                          )
                                                                             )
                                                                             )
                                                                             )
David D. Tripple*                                                            )
David D. Tripple                                                             )
                                                                             )
                                                                             )
                                                                             )
Stephen K. West*                                                             )
Stephen K. West                                                              )
                                                                             )
                                                                             )
                                                                             )
John Winthrop*                                                               )
John Winthrop                                                                )
                                                                             )
                                                                             )


   
*By:_____________________                 Dated:  January 31, 1996
    John F. Cogan, Jr.
    Attorney-in-fact
    



                                      C-7
<PAGE>


                                  Exhibit Index


Exhibit
Number   Document Title


   
1.   Declaration of Trust

2.   By-Laws

4.   Specimen Share Certificate

5.   Management Contract

6.1  Underwriting Agreement

6.2  Form of Dealer Sales Agreement

8.   Form of Custodian Agreement with Brown Brothers Harriman & Co.

9.   Investment Company Service Agreement

10.  Legal Opinion of Morris, Nichols, Arsht & Tunnell

11.  Consent of Arthur Andersen LLP

15.1 Class A Distribution Plan

15.2 Class B Distribution Plan

15.3 Class C Distribution Plan

17.  Financial Data Schedule

18.  Multiple Class Plan Pursuant to Rule 18f-3

19.  Powers of Attorney
    


                                      C-8



                              PIONEER MID-CAP FUND

                                  AGREEMENT AND
                              DECLARATION OF TRUST


         This AGREEMENT AND  DECLARATION OF TRUST is made on January 12, 1996 by
John F.  Cogan,  Jr.  (together  with all other  persons  from time to time duly
elected,  qualified and serving as Trustees in accordance with the provisions of
Article II hereof, the "Trustees");

         NOW,  THEREFORE,  the  Trustees  declare  that all money  and  property
contributed  to the Trust  shall be held and  managed in trust  pursuant to this
Agreement and Declaration of Trust.


                                    ARTICLE I

                              NAME AND DEFINITIONS

Section 1. Name. The name of the Trust created by this Agreement and Declaration
of Trust is "Pioneer Mid-Cap Fund."

Section 2.  Definitions.  Unless otherwise provided or required by the context:

         (a)"Administrator"  means  the  party,  other  than the  Trust,  to the
contract described in Article III, Section 3 hereof.

         (b)"By-laws" means the By-laws of the Trust adopted by the Trustees, as
amended from time to time,  which By-laws are expressly  herein  incorporated by
reference  as part of the  "governing  instrument"  within  the  meaning  of the
Delaware Act.

         (c)"Class" means the class of Shares of a Series  established  pursuant
to Article V.

         (d)"Commission,"  "Interested Person" and "Principal  Underwriter" have
the  meanings  provided  in the 1940 Act.  Except as such term may be  otherwise
defined by the Trustees in conjunction  with the  establishment of any Series of
Shares,  the term "vote of a majority of the Shares  outstanding and entitled to
vote" shall have the same meaning as is assigned to the term "vote of a majority
of the outstanding voting securities" in the 1940 Act.
<PAGE>

         (e)"Covered Person" means a person so defined in Article IV, Section 2.

         (f)"Custodian" means any Person other than the Trust who has custody of
any Trust  Property as required by Section  17(f) of the 1940 Act,  but does not
include a system  for the  central  handling  of  securities  described  in said
Section 17(f).

         (g)"Declaration" shall mean this Agreement and Declaration of Trust, as
amended or restated from time to time. Reference in this Declaration of Trust to
"Declaration,"  "hereof,"  "herein," and "hereunder" shall be deemed to refer to
this Declaration rather than exclusively to the article or section in which such
words appear.

         (h)"Delaware  Act" means  Chapter 38 of Title 12 of the  Delaware  Code
entitled "Treatment of Delaware Business Trusts," as amended from time to time.

         (i)"Distributor" means the party, other than the Trust, to the contract
described in Article III, Section 1 hereof.

         (j)"His"  shall  include  the  feminine  and  neuter,  as  well  as the
masculine, genders.

         (k)"Investment  Adviser" means the party,  other than the Trust, to the
contract described in Article III, Section 2 hereof.

         (l)"Net  Asset  Value"  means the net asset value of each Series of the
Trust, determined as provided in Article VI, Section 3.

         (m)"Person" means and includes individuals, corporations, partnerships,
trusts,   associations,   joint  ventures,   estates  and  other  entities,  and
governments and agencies and political subdivisions,  thereof,  whether domestic
or foreign.

         (n)"Series" means a series of Shares established pursuant to Article V.

         (o)"Shareholder" means a record owner of Outstanding Shares;

         (p)"Shares"  means  the  equal  proportionate   transferable  units  of
interest into which the  beneficial  interest of each Series or Class is divided
from time to time (including whole Shares and fractions of Shares). "Outstanding
Shares"  means 


                                      -2-
<PAGE>

Shares shown in the books of the Trust or its transfer  agent as then issued and
outstanding, but does not include Shares which have been repurchased or redeemed
by the Trust and which are held in the treasury of the Trust.

         (q)"Transfer Agent" means any Person other than the Trust who maintains
the  Shareholder  records of the Trust,  such as the list of  Shareholders,  the
number of Shares credited to each account, and the like.

         (r)"Trust" means Pioneer Mid-Cap Fund established hereby, and reference
to the Trust, when applicable to one or more Series, refers to that Series.

         (s)"Trustees"  means the persons who have  signed this  Declaration  of
Trust,  so long as they shall  continue in office in  accordance  with the terms
hereof,  and all other  persons who may from time to time be duly  qualified and
serving  as  Trustees  in  accordance  with  Article  II,  in all cases in their
capacities as Trustees hereunder.

         (t)"Trust  Property"  means  any and all  property,  real or  personal,
tangible or intangible, which is owned or held by or for the Trust or any Series
or the Trustees on behalf of the Trust or any Series.

         (u)The "1940 Act" means the Investment  Company Act of 1940, as amended
from time to time.


                                   ARTICLE II

                                  THE TRUSTEES

         Section 1.  Management  of the Trust.  The  business and affairs of the
Trust shall be managed by or under the direction of the Trustees, and they shall
have all powers  necessary or desirable  to carry out that  responsibility.  The
Trustees may execute all  instruments and take all action they deem necessary or
desirable to promote the interests of the Trust. Any  determination  made by the
Trustees  in good  faith as to what is in the  interests  of the Trust  shall be
conclusive.  In construing the provisions of this  Declaration,  the presumption
shall be in favor of a grant of power to the Trustees.

         Section  2.  Powers.  The  Trustees  in  all  instances  shall  act  as
principals,  free of the control of the  Shareholders.  The


                                      -3-
<PAGE>

Trustees  shall have full power and authority to take or refrain from taking any
action and to execute  any  contracts  and  instruments  that they may  consider
necessary or desirable in the management of the Trust. The Trustees shall not in
any way be bound or limited by current or future laws or customs  applicable  to
trust  investments,  but  shall  have  full  power  and  authority  to make  any
investments which they, in their sole discretion,  deem proper to accomplish the
purposes of the Trust.  The Trustees  may  exercise all of their powers  without
recourse to any court or other authority.  Subject to any applicable  limitation
herein or in the By-laws or  resolutions  of the Trust,  the Trustees shall have
power and authority, without limitation:

         (a)To  operate as and carry on the business of an  investment  company,
and exercise all the powers  necessary  and  appropriate  to the conduct of such
operations.

         (b)To invest in, hold for investment, or reinvest in, cash; securities,
including  common,  preferred  and  preference  stocks;  warrants;  subscription
rights;  profit-sharing  interests or participations and all other contracts for
or evidence of equity interests;  bonds,  debentures,  bills, time notes and all
other  evidences of  indebtedness;  negotiable  or  non-negotiable  instruments;
government securities,  including securities of any state, municipality or other
political subdivision thereof, or any governmental or quasi-governmental  agency
or instrumentality;  and money market instruments including bank certificates of
deposit,  finance paper, commercial paper, bankers' acceptances and all kinds of
repurchase agreements, of any corporation,  company, trust, association, firm or
other business  organization  however  established,  and of any country,  state,
municipality   or  other   political   subdivision,   or  any   governmental  or
quasi-governmental agency or instrumentality; or any other security, property or
instrument  in which  the  Trust or any of its  Series  shall be  authorized  to
invest.

         (c)To acquire (by purchase,  subscription  or  otherwise),  to hold, to
trade in and deal in, to acquire any rights or options to  purchase or sell,  to
sell or  otherwise  dispose  of, to lend and to pledge any such  securities,  to
enter into repurchase agreements, reverse repurchase agreements, firm commitment
agreements and forward foreign currency exchange contracts, to purchase and sell
options on securities,  securities indices, currency and other financial assets,
futures  contracts and options on futures  contracts of all  descriptions and to
engage in all types of hedging and risk-management transactions.

                                      -4-
<PAGE>

         (d)To  exercise  all rights,  powers and  privileges  of  ownership  or
interest  in all  securities  and  repurchase  agreements  included in the Trust
Property,  including  the right to vote thereon and  otherwise  act with respect
thereto and to do all acts for the  preservation,  protection,  improvement  and
enhancement in value of all such securities and repurchase agreements.

         (e)To  acquire (by  purchase,  lease or  otherwise)  and to hold,  use,
maintain,  develop and dispose of (by sale or otherwise)  any property,  real or
personal, including cash or foreign currency, and any interest therein.

         (f)To  borrow  money  or  other  property  in the  name  of  the  Trust
exclusively  for Trust  purposes  and in this  connection  issue  notes or other
evidence  of  indebtedness;  to secure  borrowings  by  mortgaging,  pledging or
otherwise subjecting as security the Trust Property; and to endorse,  guarantee,
or undertake the performance of any obligation or engagement of any other Person
and to lend Trust Property.

         (g)To  aid by  further  investment  any  corporation,  company,  trust,
association  or firm,  any obligation of or interest in which is included in the
Trust  Property  or in the  affairs  of which the  Trustees  have any  direct or
indirect  interest;  to do all acts and things  designed to  protect,  preserve,
improve or enhance the value of such obligation or interest; and to guarantee or
become surety on any or all of the contracts,  stocks, bonds, notes,  debentures
and other obligations of any such corporation,  company,  trust,  association or
firm.

         (h)To adopt By-laws not inconsistent  with this  Declaration  providing
for the conduct of the business of the Trust and to amend and repeal them to the
extent such right is not reserved to the Shareholders.

         (i)To elect and remove such  officers  and appoint and  terminate  such
agents as they deem appropriate.

         (j)To employ as  custodian  of any assets of the Trust,  subject to any
provisions  herein or in the  By-laws,  one or more banks,  trust  companies  or
companies that are members of a national securities exchange,  or other entities
permitted by the Commission to serve as such.

         (k)To  retain one or more  transfer  agents and  shareholder  servicing
agents, or both.

                                      -5-
<PAGE>

         (l)To provide for the distribution of Shares either through a Principal
Underwriter as provided herein or by the Trust itself, or both, or pursuant to a
distribution plan of any kind.

         (m)To set record dates in the manner  provided for herein or in the By-
laws.

         (n)To  delegate  such  authority  as  they  consider  desirable  to any
officers  of the  Trust  and  to any  agent,  independent  contractor,  manager,
investment adviser, custodian or underwriter.

         (o)To hold any security or other  property (i) in a form not indicating
any trust, whether in bearer, book entry, unregistered or other negotiable form,
or (ii)  either  in the  Trust's  or  Trustees'  own  name  or in the  name of a
custodian or a nominee or nominees, subject to safeguards according to the usual
practice of business trusts or investment companies.

         (p)To establish  separate and distinct  Series with separately  defined
investment  objectives and policies and distinct investment  purposes,  and with
separate  Shares  representing  beneficial  interests  in  such  Series,  and to
establish separate Classes, all in accordance with the provisions of Article V.

         (q)To the full extent permitted by Section 3804 of the Delaware Act, to
allocate  assets,  liabilities and expenses of the Trust to a particular  Series
and assets,  liabilities and expenses to a particular  Class or to apportion the
same  between  or  among  two or more  Series  or  Classes,  provided  that  any
liabilities  or  expenses  incurred  by a  particular  Series or Class  shall be
payable  solely out of the assets  belonging to that Series or Class as provided
for in Article V, Section 4.

         (r)To  consent to or  participate  in any plan for the  reorganization,
consolidation  or merger of any corporation or concern whose securities are held
by the Trust; to consent to any contract, lease, mortgage,  purchase, or sale of
property by such corporation or concern;  and to pay calls or subscriptions with
respect to any security held in the Trust.

         (s)To compromise,  arbitrate, or otherwise adjust claims in favor of or
against the Trust or any matter in  controversy  including,  but not limited to,
claims for taxes.

         (t)To make distributions of income,  capital gains,  returns of capital
(if any) and  redemption  proceeds  to  Shareholders  in the manner  hereinafter
provided for.

                                      -6-
<PAGE>

         (u)To establish committees for such purposes, with such membership, and
with such  responsibilities  as the Trustees may  consider  proper,  including a
committee consisting of fewer than all of the Trustees then in office, which may
act for and bind the  Trustees  and the Trust with  respect to the  institution,
prosecution, dismissal, settlement, review or investigation of any legal action,
suit or proceeding, pending or threatened.

         (v)To issue, sell, repurchase,  redeem, cancel, retire,  acquire, hold,
resell, reissue, dispose of and otherwise deal in Shares; to establish terms and
conditions regarding the issuance, sale, repurchase,  redemption,  cancellation,
retirement,  acquisition, holding, resale, reissuance, disposition of or dealing
in Shares;  and,  subject to Articles V and VI, to apply to any such repurchase,
redemption,  retirement,  cancellation  or  acquisition  of Shares  any funds or
property of the Trust or of the  particular  Series  with  respect to which such
Shares are issued.

         (w)To  invest part or all of the Trust  Property (or part or all of the
assets of any  Series),  or to dispose of part or all of the Trust  Property (or
part or all of the  assets  of any  Series)  and  invest  the  proceeds  of such
disposition,  in  securities  issued by one or more other  investment  companies
registered  under  the 1940 Act all  without  any  requirement  of  approval  by
Shareholders.  Any such other  investment  company may (but need not) be a trust
(formed  under the laws of the State of New York or of any other state) which is
classified as a partnership for federal income tax purposes.

         (x)To carry on any other  business in connection  with or incidental to
any  of the  foregoing  powers,  to do  everything  necessary  or  desirable  to
accomplish  any purpose or to further any of the foregoing  powers,  and to take
every other action incidental to the foregoing business or purposes,  objects or
powers.

         (y) To sell or exchange any or all of the assets of the Trust,  subject
to Article IX, Section 4.

         (z)To enter into joint ventures,  partnerships  and other  combinations
and associations.

         (aa)To join with other security  holders in acting through a committee,
depositary,  voting trustee or otherwise,  and in that connection to deposit any
security  with, or transfer any security to, any such  committee,  depositary or
trustee,  and to delegate to them such power and authority  with relation to any
security (whether or not so deposited or transferred) as the Trustees shall 


                                      -7-
<PAGE>

deem proper,  and to agree to pay, and to pay,  such portion of the expenses and
compensation of such Committee, depositary or trustee as the Trustees shall deem
proper;

         (bb)To  purchase  and pay  for  entirely  out of  Trust  Property  such
insurance as the Trustees may deem necessary or  appropriate  for the conduct of
the business,  including,  without  limitation,  insurance policies insuring the
assets of the Trust or payment of  distributions  and principal on its portfolio
investments,  and,  subject to applicable law and any  restrictions set forth in
the By-laws, insurance policies insuring the Shareholders,  Trustees,  officers,
employees, agents, investment advisers,  Principal Underwriters,  or independent
contractors of the Trust,  individually,  against all claims and  liabilities of
every nature arising by reason of holding Shares,  holding, being or having held
any such  office or  position,  or by reason of any action  alleged to have been
taken or  omitted  by any such  Person as  Trustee,  officer,  employee,  agent,
investment adviser, Principal underwriter, or independent contractor,  including
any action taken or omitted that may be  determined  to  constitute  negligence,
whether or not the Trust would have the power to indemnify  such Person  against
liability;

         (cc)To adopt,  establish and carry out pension,  profit-sharing,  share
bonus,  share  purchase,  savings,  thrift and other  retirement,  incentive and
benefit plans and trusts, including the purchasing of life insurance and annuity
contracts as a means of providing such retirement and other benefits, for any or
all of the Trustees, officers, employees and agents of the Trust;

         (dd) To enter into contracts of any kind and description;

         (ee)To interpret the investment  policies,  practices or limitations of
any Series or Class; and

         (ff)To guarantee indebtedness and contractual obligations of others.

         The clauses  above shall be  construed  as objects and powers,  and the
enumeration of specific  powers shall not limit in any way the general powers of
the  Trustees.  Any action by one or more of the  Trustees in their  capacity as
such  hereunder  shall  be  deemed  an  action  on  behalf  of the  Trust or the
applicable Series, and not an action in an individual  capacity.  No one dealing
with the Trustees shall be under any  obligation to make any inquiry  concerning
the authority of the Trustees, or to see to the application of any payments made
or property  transferred to the 


                                      -8-
<PAGE>

Trustees or upon their order.  In construing this  Declaration,  the presumption
shall be in favor of a grant of power to the Trustees.

         Section 3. Certain  Transactions.  Except as  prohibited  by applicable
law, the Trustees may, on behalf of the Trust,  buy any securities  from or sell
any securities to, or lend any assets of the Trust to, any Trustee or officer of
the Trust or any firm of which any such Trustee or officer is a member acting as
principal, or have any such dealings with any investment adviser, administrator,
distributor  or transfer  agent for the Trust or with any  Interested  Person of
such person. The Trust may employ any such person or entity in which such person
is an  Interested  Person,  as  broker,  legal  counsel,  registrar,  investment
adviser, administrator,  distributor, transfer agent, dividend disbursing agent,
custodian or in any other capacity upon customary terms.

         Section 4.  Initial  Trustees;  Election  and Number of  Trustees.  The
initial Trustees shall be the persons initially  signing this  Declaration.  The
number of Trustees (other than the initial  Trustee) shall be fixed from time to
time by a majority of the Trustees;  provided,  that there shall be at least one
(1) Trustee and no more than  fifteen  (15).  The  Shareholders  shall elect the
Trustees (other than the initial Trustees) on such dates as the Trustees may fix
from time to time.

         Section 5. Term of Office of Trustees.  Each Trustee  shall hold office
for life or until his successor is elected or the Trust terminates;  except that
(a) any Trustee may resign by delivering  to the other  Trustees or to any Trust
officer a written  resignation  effective  upon such  delivery  or a later  date
specified  therein;  (b) any Trustee may be removed with or without cause at any
time by a written instrument signed by at least a majority of the then Trustees,
specifying  the  effective  date of removal;  (c) any Trustee who requests to be
retired,  or who is  declared  bankrupt  or has become  physically  or  mentally
incapacitated  or is  otherwise  unable to serve,  may be  retired  by a written
instrument signed by a majority of the other Trustees,  specifying the effective
date of  retirement;  and (d) any  Trustee  may be removed at any meeting of the
Shareholders by a vote of at least two-thirds of the Outstanding Shares.

         Section 6. Vacancies; Appointment of Trustees. Whenever a vacancy shall
exist in the Board of Trustees,  regardless of the reason for such vacancy,  the
remaining  Trustees  shall  appoint any person as they  determine  in their sole
discretion to fill that vacancy,  consistent with the limitations under the 1940
Act. Such appointment shall be made by a written instrument signed by a 


                                      -9-
<PAGE>

majority of the Trustees or by a resolution  of the  Trustees,  duly adopted and
recorded  in the  records of the Trust,  specifying  the  effective  date of the
appointment.  The  Trustees  may  appoint a new  Trustee  as  provided  above in
anticipation  of  a  vacancy  expected  to  occur  because  of  the  retirement,
resignation  or removal  of a Trustee,  or an  increase  in number of  Trustees,
provided  that such  appointment  shall  become  effective  only at or after the
expected  vacancy  occurs.  As  soon  as  any  such  Trustee  has  accepted  his
appointment in writing, the trust estate shall vest in the new Trustee, together
with the  continuing  Trustees,  without any further act or  conveyance,  and he
shall be deemed a Trustee  hereunder.  The  Trustees'  power of  appointment  is
subject  to Section  16(a) of the 1940 Act.  Whenever a vacancy in the number of
Trustees  shall occur,  until such vacancy is filled as provided in this Article
II, the  Trustees  in office,  regardless  of their  number,  shall have all the
powers  granted to the Trustees and shall  discharge all the duties imposed upon
the Trustees by the Declaration.  The death, declination to serve,  resignation,
retirement, removal or incapacity of one or more Trustees, or all of them, shall
not operate to annul the Trust or to revoke any existing agency created pursuant
to the terms of this Declaration of Trust.

         Section  7.  Temporary  Vacancy or  Absence.  Whenever a vacancy in the
Board of  Trustees  shall  occur,  until such  vacancy  is filled,  or while any
Trustee is absent from his domicile  (unless that Trustee has made  arrangements
to be informed  about,  and to  participate  in, the affairs of the Trust during
such  absence),  or is  physically  or  mentally  incapacitated,  the  remaining
Trustees  shall have all the powers  hereunder and their  certificate as to such
vacancy,  absence, or incapacity shall be conclusive.  Any Trustee may, by power
of attorney,  delegate his powers as Trustee for a period not  exceeding six (6)
months at any one time to any other Trustee or Trustees.

         Section 8. Chairman.  The Trustees shall appoint one of their number to
be Chairman of the Board of Trustees. The Chairman shall preside at all meetings
of the Trustees,  shall be responsible for the execution of policies established
by the  Trustees  and the  administration  of the  Trust,  and may be the  chief
executive, financial and/or accounting officer of the Trust.

         Section 9. Action by the Trustees.  The Trustees  shall act by majority
vote at a meeting duly called at which a quorum is present,  including a meeting
held by  conference  telephone,  teleconference  or  other  electronic  media or
communication  equipment  by means of which  all  persons  participating  in the

                                      -10-
<PAGE>

meeting can communicate  with each other; or by written consent of a majority of
Trustees (or such greater number as may be required by applicable law) without a
meeting.  A majority of the Trustees  shall  constitute a quorum at any meeting.
Meetings of the Trustees may be called  orally or in writing by the President or
by any one of the Trustees.  Notice of the time, date and place of all Trustees'
meetings  shall be given to each Trustee as set forth in the By-laws;  provided,
however,  that no notice is  required  if the  Trustees  provide  for regular or
stated meetings. Notice need not be given to any Trustee who attends the meeting
without  objecting to the lack of notice or who signs a waiver of notice  either
before or after the meeting.  The Trustees by majority  vote may delegate to any
Trustee or Trustees or committee authority to approve particular matters or take
particular  actions on behalf of the Trust. Any written consent or waiver may be
provided and  delivered to the Trust by  facsimile or other  similar  electronic
mechanism.

         Section 10.  Ownership  of Trust  Property.  The Trust  Property of the
Trust and of each Series shall be held separate and apart from any assets now or
hereafter held in any capacity  other than as Trustee  hereunder by the Trustees
or any successor Trustees. Legal title in and beneficial ownership of all of the
assets of the Trust  shall at all times be  considered  as vested in the  Trust,
except that the  Trustees may cause legal title in and  beneficial  ownership of
any Trust  Property to be held by, or in the name of one or more of the Trustees
acting for and on behalf of the  Trust,  or in the name of any person as nominee
acting for and on behalf of the Trust. No Shareholder  shall be deemed to have a
severable ownership in any individual asset of the Trust or of any Series or any
right of partition or possession  thereof,  but each Shareholder  shall have, as
provided  in Article V, a  proportionate  undivided  beneficial  interest in the
Trust or Series or Class  thereof  represented  by Shares.  The Shares  shall be
personal  property giving only the rights  specifically  set forth in this Trust
Instrument.  The Trust, or at the  determination  of the Trustees one or more of
the Trustees or a nominee acting for and on behalf of the Trust, shall be deemed
to hold legal title and beneficial  ownership of any income earned on securities
of the Trust  issued by any business  entities  formed,  organized,  or existing
under the laws of any  jurisdiction,  including the laws of any foreign country.
Upon the resignation or removal of a Trustee,  or his otherwise  ceasing to be a
Trustee,  he shall execute and deliver such documents as the remaining  Trustees
shall  require  for the  purpose  of  conveying  to the  Trust or the  remaining
Trustees  any  Trust  Property  held in the  name of the  resigning  or  removed
Trustee.  Upon the incapacity or death of any Trustee,  his legal 


                                      -11-
<PAGE>

representative  shall  execute and deliver on his behalf such  documents  as the
remaining Trustees shall require as provided in the preceding sentence.

         Section 11.  Effect of Trustees  Not Serving.  The death,  resignation,
retirement,  removal,  incapacity  or  inability  or  refusal  to  serve  of the
Trustees,  or any one of them, shall not operate to annul the Trust or to revoke
any existing agency created pursuant to the terms of this Declaration.

         Section 12. Trustees, etc. as Shareholders. Subject to any restrictions
in the By-laws,  any Trustee,  officer,  agent or independent  contractor of the
Trust may  acquire,  own and  dispose of Shares to the same  extent as any other
Shareholder;  the  Trustees may issue and sell Shares to and buy Shares from any
such person or any firm or company in which such person is  interested,  subject
only to any general limitations herein.

         Section 13. Series  Trustees.  In connection with the  establishment of
one or more Series or Classes,  the Trustees  establishing  such Series or Class
may appoint, to the extent permitted by the Delaware Act, separate Trustees with
respect to such Series or Classes (the "Series Trustees").  Series Trustees may,
but are not  required  to, serve as Trustees of the Trust or any other Series or
Class of the Trust.  The Series  Trustees  shall have,  to the  exclusion of any
other Trustee of the Trust, all the powers and authorities of Trustees hereunder
with respect to such Series or Class,  but shall have no power or authority with
respect to any other Series or Class. Any provision of this Declaration relating
to election of Trustees by Shareholders only shall entitle the Shareholders of a
Series or Class for  which  Series  Trustees  have been  appointed  to vote with
respect to the  election of such Series  Trustees  and the  Shareholders  of any
other Series or Class shall not be entitled to  participate in such vote. In the
event that Series Trustees are appointed, the Trustees initially appointing such
Series Trustees shall,  without the approval of any  Outstanding  Shares,  amend
either  the   Declaration   or  the  By-laws  to  provide  for  the   respective
responsibilities  of the Trustees and the Series Trustees in circumstances where
an action of the Trustees or Series Trustees  affects all Series of the Trust or
two or more Series represented by different Trustees.


                                   ARTICLE III

                        CONTRACTS WITH SERVICE PROVIDERS

                                      -12-
<PAGE>

         Section 1. Underwriting  Contract. The Trustees may in their discretion
from time to time enter into an exclusive or non-exclusive distribution contract
or  contracts  providing  for the sale of the Shares  whereby the  Trustees  may
either  agree to sell the Shares to the other  party to the  contract or appoint
such other party as their sales agent for the Shares, and in either case on such
terms and  conditions,  if any, as may be  prescribed  in the By-laws,  and such
further terms and conditions as the Trustees may in their  discretion  determine
not inconsistent with the provisions of this Article III or of the By-laws;  and
such  contract may also provide for the  repurchase  of the Shares by such other
party as agent of the Trustees.

         Section 2. Advisory or Management  Contract.  The Trustees may in their
discretion  from time to time  enter  into one or more  investment  advisory  or
management  contracts or, if the Trustees  establish  multiple Series,  separate
investment  advisory or management  contracts with respect to one or more Series
whereby  the other party or parties to any such  contracts  shall  undertake  to
furnish   the   Trust   or  such   Series   management,   investment   advisory,
administration,  accounting,  legal,  statistical  and research  facilities  and
services,  promotional or marketing  activities,  and such other  facilities and
services, if any, as the Trustees shall from time to time consider desirable and
all upon such  terms and  conditions  as the  Trustees  may in their  discretion
determine.  Notwithstanding any provisions of the Declaration,  the Trustees may
authorize  the  Investment  Advisers or persons to whom the  Investment  Adviser
delegates  certain  or all of  their  duties,  or any of  them,  under  any such
contracts (subject to such general or specific  instructions as the Trustees may
from time to time  adopt) to effect  purchases,  sales,  loans or  exchanges  of
portfolio  securities  and  other  investments  of the  Trust on  behalf  of the
Trustees  or may  authorize  any  officer,  employee  or Trustee to effect  such
purchases,  sales,  loans  or  exchanges  pursuant  to  recommendations  of such
Investment  Advisers,  or any of them  (and all  without  further  action by the
Trustees).  Any such  purchases,  sales,  loans and exchanges shall be deemed to
have been authorized by all of the Trustees.

         Section  3.  Administration   Agreement.  The  Trustees  may  in  their
discretion from time to time enter into an  administration  agreement or, if the
Trustees   establish  multiple  Series  or  Classes,   separate   administration
agreements with respect to each Series or Class, whereby the other party to such
agreement  shall  undertake to manage the business  affairs of the Trust or of a
Series or Class  thereof  of the Trust  and  furnish  the Trust or a Series or a
Class thereof with office facilities,  and shall be


                                      -13-
<PAGE>

responsible for the ordinary clerical, bookkeeping and recordkeeping services at
such office facilities,  and other facilities and services, if any, and all upon
such terms and conditions as the Trustees may in their discretion determine.

         Section 4. Service Agreement. The Trustees may in their discretion from
time to time enter into service agreements with respect to one or more Series or
Classes of Shares  whereby the other  parties to such  Service  Agreements  will
provide  administration and/or support services pursuant to administration plans
and service  plans,  and all upon such terms and  conditions  as the Trustees in
their discretion may determine.

         Section 5. Transfer  Agent.  The Trustees may in their  discretion from
time to time enter  into a transfer  agency  and  shareholder  service  contract
whereby the other party to such  contract  shall  undertake to furnish  transfer
agency and shareholder services to the Trust. The contract shall have such terms
and  conditions  as  the  Trustees  may  in  their   discretion   determine  not
inconsistent with the Declaration.  Such services may be provided by one or more
Persons.

         Section 6. Custodian.  The Trustees may appoint or otherwise engage one
or more banks or trust  companies,  each having aggregate  capital,  surplus and
undivided  profits  (as  shown in its last  published  report)  of at least  two
million dollars ($2,000,000), or any other entity satisfying the requirements of
the 1940 Act, to serve as Custodian with authority as its agent,  but subject to
such  restrictions,  limitations  and  other  requirements,  if  any,  as may be
contained  in the By-laws of the Trust.  The  Trustees  may also  authorize  the
Custodian to employ one or more sub-custodians, including such foreign banks and
securities depositories as meet the requirements of applicable provisions of the
1940 Act, and upon such terms and  conditions  as may be agreed upon between the
Custodian and such  sub-custodian,  to hold  securities  and other assets of the
Trust  and to  perform  the acts  and  services  of the  Custodian,  subject  to
applicable provisions of law and resolutions adopted by the Trustees.

         Section 7. Affiliations of Trustees or Officers, Etc. The fact that:

                   (i) any of the  Shareholders,  Trustees  or  officers  of the
         Trust  or any  Series  thereof  is a  shareholder,  director,  officer,
         partner, trustee,  employee,  manager, adviser or distributor of or for
         any partnership,  corporation, trust, association or other organization
         or of or for any parent or


                                      -14-
<PAGE>

         affiliate of any  organization,  with which a contract of the character
         described in this Article III or for  services as  Custodian,  Transfer
         Agent or disbursing  agent or for related services may have been or may
         hereafter  be made,  or that any such  organization,  or any  parent or
         affiliate thereof, is a Shareholder of or has an interest in the Trust,
         or that

                  (ii) any partnership, corporation, trust, association or other
         organization  with  which a  contract  of the  character  described  in
         Sections 1, 2, 3 or 4 of this Article III or for services as Custodian,
         Transfer  Agent or  disbursing  agent or for related  services may have
         been  or may  hereafter  be  made  also  has  any  one or  more of such
         contracts with one or more other  partnerships,  corporations,  trusts,
         associations  or  other   organizations,   or  has  other  business  or
         interests,

shall  not  affect  the  validity  of  any  such  contract  or  disqualify   any
Shareholder,  Trustee or officer of the Trust from voting upon or executing  the
same or create any liability or accountability to the Trust or its Shareholders.


                                      -15-
<PAGE>


                                   ARTICLE IV

            COMPENSATION, LIMITATION OF LIABILITY AND INDEMNIFICATION

         Section 1.  Compensation.  The  Trustees  as such shall be  entitled to
reasonable  compensation  from the  Trust,  and they may fix the  amount of such
compensation.  Nothing  herein  shall in any way prevent the  employment  of any
Trustee for advisory, management, legal, accounting, investment banking or other
services and payment for the same by the Trust.

         Section 2.  Limitation of Liability.  All persons  contracting  with or
having any claim against the Trust or a particular Series shall look only to the
assets of all Series or such  particular  Series for payment under such contract
or claim; and neither the Trustees nor, when acting in such capacity, any of the
Trust's officers, employees or agents, whether past, present or future, shall be
personally liable therefor.  Every written instrument or obligation on behalf of
the Trust or any Series shall contain a statement to the foregoing  effect,  but
the absence of such  statement  shall not operate to make any Trustee or officer
of the Trust liable thereunder. Provided they have exercised reasonable care and
have  acted  under the  reasonable  belief  that their  actions  are in the best
interest  of the Trust,  the  Trustees  and  officers  of the Trust shall not be
responsible  or liable for any act or omission or for neglect or  wrongdoing  of
them  or  any  officer,  agent,  employee,  investment  adviser  or  independent
contractor of the Trust,  but nothing  contained in this  Declaration  or in the
Delaware Act shall protect any Trustee or officer of the Trust against liability
to the Trust or to Shareholders to which he would otherwise be subject by reason
of willful misfeasance, bad faith, gross negligence or reckless disregard of the
duties involved in the conduct of his office.

         Section  3.   Indemnification.   (a)  Subject  to  the  exceptions  and
limitations contained in subsection (b) below:

                  (i)every  person who is, or has been, a Trustee or an officer,
                  employee or agent of the Trust  (including  any individual who
                  serves at its request as director,  officer,  partner, trustee
                  or the  like  of  another  organization  in  which  it has any
                  interest as a  shareholder,  creditor or otherwise)  ("Covered
                  Person") shall be indemnified by the Trust or the  appropriate
                  Series  to  the  fullest  extent   permitted  by  law  against
                  liability and against all expenses reasonably incurred or paid
                  by  him  in  connection  with  any  claim,   action, 


                                      -16-
<PAGE>

                  suit or proceeding in which he becomes  involved as a party or
                  otherwise  by virtue  of his  being or  having  been a Covered
                  Person and  against  amounts  paid or  incurred  by him in the
                  settlement thereof; and

                  (ii) as used herein,  the words "claim,"  "action," "suit," or
                  "proceeding"  shall  apply to all  claims,  actions,  suits or
                  proceedings  (civil,  criminal or other,  including  appeals),
                  actual or threatened, and the words "liability" and "expenses"
                  shall include,  without  limitation,  attorneys' fees,  costs,
                  judgments,  amounts paid in settlement,  fines,  penalties and
                  other liabilities.

         (b) No indemnification shall be provided hereunder to a Covered Person:

                  (i)who shall have been  adjudicated  by a court or body before
                  which the proceeding was brought (A) to be liable to the Trust
                  or its  Shareholders  by reason of  willful  misfeasance,  bad
                  faith,  gross  negligence or reckless  disregard of the duties
                  involved  in the  conduct  of his  office,  or (B) not to have
                  acted in good faith in the  reasonable  belief that his action
                  was in the best interest of the Trust; or

                  (ii) in the  event of a  settlement,  unless  there has been a
                  determination  that  such  Covered  Person  did not  engage in
                  willful  misfeasance,  bad faith, gross negligence or reckless
                  disregard of the duties involved in the conduct of his office;
                  (A) by the court or other body approving the  settlement;  (B)
                  by at least a  majority  of  those  Trustees  who are  neither
                  Interested  Persons of the Trust nor are parties to the matter
                  based upon a review of readily  available facts (as opposed to
                  a  full  trial-type  inquiry);   (C)  by  written  opinion  of
                  independent  legal  counsel  based  upon a review  of  readily
                  available facts (as opposed to a full  trial-type  inquiry) or
                  (D) by a vote of a majority of the Outstanding Shares entitled
                  to vote (excluding any  Outstanding  Shares owned of record or
                  beneficially by such individual).

         (c) The  rights  of  indemnification  herein  provided  may be  insured
against by policies  maintained by the Trust,  shall be severable,  shall not be
exclusive of or affect any other  rights to which any Covered  Person may now or
hereafter  be entitled,  and 


                                      -17-
<PAGE>

shall  inure to the  benefit of the heirs,  executors  and  administrators  of a
Covered Person.

         (d) To the maximum  extent  permitted by  applicable  law,  expenses in
connection  with the  preparation  and  presentation  of a defense to any claim,
action,  suit or proceeding of the character described in subsection (a) of this
Section may be paid by the Trust or applicable Series from time to time prior to
final disposition thereof upon receipt of an undertaking by or on behalf of such
Covered  Person  that  such  amount  will be paid  over by him to the  Trust  or
applicable  Series if it is  ultimately  determined  that he is not  entitled to
indemnification  under this  Section;  provided,  however,  that either (i) such
Covered Person shall have provided  appropriate  security for such  undertaking,
(ii)  the  Trust is  insured  against  losses  arising  out of any such  advance
payments or (iii) either a majority of the  Trustees who are neither  Interested
Persons of the Trust nor parties to the matter,  or independent legal counsel in
a written  opinion,  shall  have  determined,  based  upon a review  of  readily
available facts (as opposed to a full  trial-type  inquiry) that there is reason
to  believe   that  such   Covered   Person  will  not  be   disqualified   from
indemnification under this Section.

         (e) Any repeal or modification of this Article IV by the  Shareholders,
or adoption or  modification  of any other  provision of the  Declaration or By-
laws  inconsistent  with this Article,  shall be prospective only, to the extent
that such repeal, or modification would, if applied  retrospectively,  adversely
affect any limitation on the liability of any Covered Person or  indemnification
available  to any  Covered  Person  with  respect to any act or  omission  which
occurred prior to such repeal, modification or adoption.

         Section 3.  Indemnification  of  Shareholders.  If any  Shareholder  or
former  Shareholder  of any Series  shall be held  personally  liable  solely by
reason of his being or having been a Shareholder  and not because of his acts or
omissions or for some other reason,  the  Shareholder or former  Shareholder (or
his heirs,  executors,  administrators or other legal  representatives or in the
case of any entity,  its general  successor) shall be entitled out of the assets
belonging to the  applicable  Series to be held  harmless  from and  indemnified
against all loss and expense arising from such  liability.  The Trust, on behalf
of the affected  Series,  shall,  upon request by such  Shareholder,  assume the
defense of any claim made against such  Shareholder for any act or obligation of
the Series and satisfy any judgment thereon from the assets of the Series.

                                      -18-
<PAGE>

         Section 4. No Bond Required of Trustees.  No Trustee shall be obligated
to give any bond or other  security  for the  performance  of any of his  duties
hereunder.

         Section 5. No Duty of Investigation;  Notice in Trust Instruments, Etc.
No purchaser,  lender,  transfer agent or other Person dealing with the Trustees
or any  officer,  employee  or agent of the Trust or a Series  thereof  shall be
bound to make any inquiry concerning the validity of any transaction  purporting
to be made by the  Trustees or by said  officer,  employee or agent or be liable
for the application of money or property paid, loaned, or delivered to or on the
order of the Trustees or of said officer,  employee or agent.  Every obligation,
contract,  instrument,  certificate,  Share,  other  security  of the Trust or a
Series thereof or undertaking,  and every other act or thing whatsoever executed
in  connection  with the  Trust  shall be  conclusively  presumed  to have  been
executed or done by the  executors  thereof  only in their  capacity as Trustees
under this Declaration or in their capacity as officers,  employees or agents of
the Trust or a Series thereof. Every written obligation,  contract,  instrument,
certificate,  Share,  other  security  of  the  Trust  or a  Series  thereof  or
undertaking  made or issued by the Trustees may recite that the same is executed
or made by them not  individually,  but as Trustees under the  Declaration,  and
that the  obligations of the Trust or a Series thereof under any such instrument
are not binding upon any of the Trustees or Shareholders individually,  but bind
only the Trust Property or the Trust Property of the applicable  Series, and may
contain any further recital which they may deem appropriate, but the omission of
such recital shall not operate to bind the Trustees  individually.  The Trustees
shall at all times  maintain  insurance for the protection of the Trust Property
or the Trust  Property of the applicable  Series,  its  Shareholders,  Trustees,
officers,  employees  and  agents in such  amount  as the  Trustees  shall  deem
adequate to cover  possible  tort  liability,  and such other  insurance  as the
Trustees in their sole judgment shall deem advisable.

         Section 6. Reliance on Experts, Etc. Each Trustee,  officer or employee
of the Trust or a Series thereof shall, in the performance of his duties, powers
and discretions  hereunder be fully and completely  justified and protected with
regard to any act or any failure to act  resulting  from  reliance in good faith
upon the books of  account or other  records  of the Trust or a Series  thereof,
upon an  opinion  of  counsel,  or upon  reports  made to the  Trust or a Series
thereof by any of its officers or employees or by the  Investment  Adviser,  the
Administrator,  


                                      -19-
<PAGE>

the Distributor,  Transfer Agent, selected dealers,  accountants,  appraisers or
other  experts or  consultants  selected with  reasonable  care by the Trustees,
officers or employees of the Trust, regardless of whether such counsel or expert
may also be a Trustee.

                                    ARTICLE V

                             SERIES; CLASSES; SHARES

         Section 1. Establishment of Series or Class. The Trust shall consist of
one or more Series.  Without limiting the authority of the Trustees to establish
and designate any further Series,  the Trustees hereby establish a single Series
which shall be designated  Pioneer Mid-Cap Fund. Each additional Series shall be
established  and is effective upon the adoption of a resolution of a majority of
the Trustees or any alternative date specified in such resolution.  The Trustees
may designate the relative  rights and preferences of the Shares of each Series.
The Trustees may divide the Shares of any Series into Classes.  Without limiting
the authority of the Trustees to establish  and  designate any further  Classes,
the Trustees hereby  establish three Classes of Shares which shall be designated
Class A,  Class B and  Class C Shares.  The  Classes  of Shares of the  existing
Series herein  established  and  designated and any Shares of any further Series
and Classes  that may from time to time be  established  and  designated  by the
Trustees shall be established and designated, and the variations in the relative
rights  and  preferences  as between  the  different  Series  shall be fixed and
determined, by the Trustees; provided, that all Shares shall be identical except
for such variations as shall be fixed and determined between different Series or
Classes by the Trustees in establishing and designating such Class or Series. In
connection  therewith with respect to the existing Classes,  the purchase price,
the method of determining the net asset value, and the relative  dividend rights
of holders shall be as set forth in the Trust's  Registration  Statement on Form
N- 1A under the  Securities  Act of 1933 and/or the 1940 Act and as in effect at
the time of issuing Shares of the existing Classes.

         All  references  to  Shares in this  Declaration  shall be deemed to be
Shares of any or all Series or Classes as the  context  may  require.  The Trust
shall  maintain  separate  and  distinct  records  for each  Series and hold and
account for the assets thereof  separately from the other assets of the Trust or
of any  other  Series.  A Series  may  issue  any  number of Shares or any Class
thereof and need not issue  Shares.  Each Share of a Series  shall


                                      -20-
<PAGE>

represent an equal  beneficial  interest in the net assets of such Series.  Each
holder of Shares of a Series or a Class thereof shall be entitled to receive his
pro rata share of all  distributions  made with respect to such Series or Class.
Upon redemption of his Shares,  such Shareholder shall be paid solely out of the
funds and property of such Series. The Trustees may adopt and change the name of
any Series or Class.

         Section  2.  Shares.  The  beneficial  interest  in the Trust  shall be
divided into transferable  Shares of one or more separate and distinct Series or
Classes  established  by the  Trustees.  The number of Shares of each Series and
Class is  unlimited  and each  Share  shall  have no par value per Share or such
other amount as the Trustees may establish. All Shares issued hereunder shall be
fully paid and  nonassessable.  Shareholders  shall have no  preemptive or other
right to subscribe to any additional  Shares or other  securities  issued by the
Trust.  The  Trustees  shall  have  full  power  and  authority,  in their  sole
discretion  and without  obtaining  Shareholder  approval,  to issue original or
additional  Shares at such times and on such terms and  conditions  as they deem
appropriate;  to issue  fractional  Shares and Shares held in the  treasury;  to
establish  and to change in any manner Shares of any Series or Classes with such
preferences,  terms of conversion,  voting powers,  rights and privileges as the
Trustees may determine (but the Trustees may not change  Outstanding Shares in a
manner  materially  adverse to the  Shareholders  of such Shares);  to divide or
combine the Shares of any Series or Classes into a greater or lesser number;  to
classify or reclassify any unissued  Shares of any Series or Classes into one or
more  Series or Classes of Shares;  to abolish any one or more Series or Classes
of Shares; to issue Shares to acquire other assets (including assets subject to,
and in connection  with, the assumption of liabilities)  and businesses;  and to
take such other  action  with  respect to the  Shares as the  Trustees  may deem
desirable. Shares held in the treasury shall not confer any voting rights on the
Trustees  and shall not be  entitled  to any  dividends  or other  distributions
declared with respect to the Shares.

         Section  3.  Investment  in  the  Trust.   The  Trustees  shall  accept
investments  in any Series or Class from such  persons and on such terms as they
may from time to time authorize. At the Trustees' discretion,  such investments,
subject to  applicable  law, may be in the form of cash or  securities  in which
that Series is authorized to invest,  valued as provided in Article VI,  Section
3.  Investments in a Series shall be credited to each  Shareholder's  account in
the form of full Shares at the Net Asset Value per Share next  determined  after
the  investment  is received 


                                      -21-
<PAGE>

or accepted as may be determined by the Trustees;  provided,  however,  that the
Trustees  may,  in  their  sole  discretion,  (a)  impose  a sales  charge  upon
investments in any Series or Class, (b) issue fractional  Shares,  (c) determine
the Net  Asset  Value  per  Share of the  initial  capital  contribution  or (d)
authorize  the  issuance  of Shares at a price other than Net Asset Value to the
extent  permitted by the 1940 Act or any rule,  order or  interpretation  of the
Commission  thereunder.  The  Trustees  shall have the right to refuse to accept
investments  in any  Series at any time  without  any  cause or reason  therefor
whatsoever.

         Section 4. Assets and Liabilities of Series. All consideration received
by the Trust for the issue or sale of Shares of a  particular  Series,  together
with all assets in which such  consideration  is  invested  or  reinvested,  all
income, earnings,  profits, and proceeds thereof (including any proceeds derived
from the sale, exchange or liquidation of such assets, and any funds or payments
derived from any  reinvestment  of such  proceeds in whatever  form the same may
be), shall be held and accounted for  separately  from the assets of every other
Series and are  referred to as "assets  belonging  to" that  Series.  The assets
belonging to a Series shall belong only to that Series for all purposes,  and to
no other  Series,  subject only to the rights of  creditors of that Series.  Any
assets,  income,  earnings,  profits,  and proceeds thereof,  funds, or payments
which are not readily  identifiable as belonging to any particular  Series shall
be  allocated  by the  Trustees  between  and  among  one or more  Series as the
Trustees deem fair and equitable.  Each such allocation  shall be conclusive and
binding upon the  Shareholders of all Series for all purposes,  and such assets,
earnings,  income,  profits or funds, or payments and proceeds  thereof shall be
referred to as assets belonging to that Series. The assets belonging to a Series
shall be so  recorded  upon the  books of the  Trust,  and  shall be held by the
Trustees in trust for the benefit of the Shareholders of that Series. The assets
belonging to a Series shall be charged with the  liabilities  of that Series and
all expenses,  costs, charges and reserves  attributable to that Series,  except
that  liabilities and expenses  allocated  solely to a particular Class shall be
borne by that  Class.  Any  general  liabilities,  expenses,  costs,  charges or
reserves of the Trust which are not readily  identifiable  as  belonging  to any
particular  Series or Class  shall be  allocated  and  charged  by the  Trustees
between or among any one or more of the Series or Classes in such  manner as the
Trustees deem fair and equitable.  Each such allocation  shall be conclusive and
binding upon the Shareholders of all Series or Classes for all purposes.

                                      -22-
<PAGE>

         Without  limiting  the  foregoing,  but  subject  to the  right  of the
Trustees to allocate general liabilities,  expenses,  costs, charges or reserves
as herein provided, the debts,  liabilities,  obligations and expenses incurred,
contracted for or otherwise  existing with respect to a particular  Series shall
be  enforceable  against  the assets of such  Series  only,  and not against the
assets of any other Series. Notice of this contractual limitation on liabilities
among Series may, in the Trustees'  discretion,  be set forth in the certificate
of trust of the Trust  (whether  originally  or by  amendment) as filed or to be
filed in the Office of the Secretary of State of the State of Delaware  pursuant
to the Delaware  Act, and upon the giving of such notice in the  certificate  of
trust, the statutory  provisions of Section 3804 of the Delaware Act relating to
limitations on liabilities  among Series (and the statutory effect under Section
3804 of setting  forth such notice in the  certificate  of trust)  shall  become
applicable  to the  Trust and each  Series.  Any  person  extending  credit  to,
contracting  with or having  any claim  against  any Series may look only to the
assets of that  Series to  satisfy  or enforce  any debt,  with  respect to that
Series. No Shareholder or former Shareholder of any Series shall have a claim on
or any right to any assets allocated or belonging to any other Series.

         Section 5. Ownership and Transfer of Shares. The Trust or a transfer or
similar agent for the Trust shall  maintain a register  containing the names and
addresses of the  Shareholders  of each Series and Class thereof,  the number of
Shares of each Series and Class held by such  Shareholders,  and a record of all
Share  transfers.  The  register  shall  be  conclusive  as to the  identity  of
Shareholders  of record and the number of Shares held by them from time to time.
The Trustees may authorize the issuance of certificates  representing Shares and
adopt rules  governing  their use.  The Trustees  may make rules  governing  the
transfer  of  Shares,  whether or not  represented  by  certificates.  Except as
otherwise provided by the Trustees, Shares shall be transferable on the books of
the Trust only by the record holder thereof or by his duly authorized agent upon
delivery  to the  Trustees  or the  Trust's  transfer  agent of a duly  executed
instrument of transfer, together with a Share certificate if one is outstanding,
and such evidence or the  genuineness of each such  execution and  authorization
and of  such  other  matters  as may be  required  by the  Trustees.  Upon  such
delivery,  and subject to any further requirements  specified by the Trustees or
contained  in the By-laws,  the  transfer  shall be recorded on the books of the
Trust.  Until a transfer is so  recorded,  the  Shareholder  of record of Shares
shall be deemed to be the holder of such Shares for all purposes  hereunder  and
neither the Trustees nor the Trust,  nor any 


                                      -23-
<PAGE>

transfer  agent or  registrar  or any  officer,  employee or agent of the Trust,
shall be affected by any notice of a proposed transfer.

         Section  6.  Status of Shares;  Limitation  of  Shareholder  Liability.
Shares  shall be deemed to be personal  property  giving  Shareholders  only the
rights  provided in this  Declaration.  Every  Shareholder,  by virtue of having
acquired a Share,  shall be held  expressly to have assented to and agreed to be
bound by the terms of this  Declaration  and to have become a party  hereto.  No
Shareholder shall be personally liable for the debts,  liabilities,  obligations
and expenses incurred by, contracted for, or otherwise existing with respect to,
the Trust or any Series.  The death,  incapacity,  dissolution,  termination  or
bankruptcy of a Shareholder  during the existence of the Trust shall not operate
to terminate the Trust, nor entitle the  representative  of any such Shareholder
to an accounting  or to take any action in court or elsewhere  against the Trust
or the  Trustees,  but entitles such  representative  only to the rights of such
Shareholder  under  this  Trust.  Ownership  of  Shares  shall not  entitle  the
Shareholder to any title in or to the whole or any part of the Trust Property or
right to call for a partition or division of the same or for an accounting,  nor
shall the ownership of Shares  constitute the Shareholders as partners.  Neither
the  Trust  nor the  Trustees  shall  have any  power  to bind  any  Shareholder
personally or to demand payment from any Shareholder for anything, other than as
agreed  by the  Shareholder.  Shareholders  shall  have the same  limitation  of
personal  liability as is extended to shareholders of a private  corporation for
profit  incorporated in the State of Delaware.  Every written  obligation of the
Trust or any Series shall contain a statement to the effect that such obligation
may only be enforced against the assets of the appropriate Series or all Series;
however,  the  omission  of such  statement  shall not operate to bind or create
personal liability for any Shareholder or Trustee.


                                   ARTICLE VI

                          DISTRIBUTIONS AND REDEMPTIONS

         Section 1.  Distributions.  The  Trustees or a committee of one or more
Trustees  and one or more  officers  may  declare  and pay  dividends  and other
distributions,  including  dividends on Shares of a particular  Series and other
distributions  from  the  assets  belonging  to  that  Series.  No  dividend  or
distribution,   including,   without  limitation,  any  distribution  paid  upon
termination  of the Trust or of any Series (or Class)  with  respect to, nor any

                                      -24-
<PAGE>

redemption  or  repurchase  of, the  Shares of any  Series  (or Class)  shall be
effected  by the Trust  other  than from the  assets  held with  respect to such
Series,  nor shall any Shareholder of any particular  Series  otherwise have any
right or claim  against the assets held with respect to any other Series  except
to the extent that such  Shareholder  has such a right or claim  hereunder  as a
Shareholder  of such other Series.  The Trustees  shall have full  discretion to
determine which items shall be treated as income and which items as capital; and
each such  determination and allocation shall be conclusive and binding upon the
Shareholders.  The amount and payment of  dividends or  distributions  and their
form,  whether  they  are in cash,  Shares  or other  Trust  Property,  shall be
determined  by the  Trustees.  Dividends  and  other  distributions  may be paid
pursuant to a standing  resolution  adopted  once or more often as the  Trustees
determine.  All  dividends  and other  distributions  on Shares of a  particular
Series  shall be  distributed  pro rata to the  Shareholders  of that  Series in
proportion  to the number of Shares of that  Series they held on the record date
established for such payment, except that such dividends and distributions shall
appropriately  reflect expenses  allocated to a particular Class of such Series.
The  Trustees may adopt and offer to  Shareholders  such  dividend  reinvestment
plans,  cash  dividend  payout  plans  or  similar  plans as the  Trustees  deem
appropriate.

         Section 2.  Redemptions.  Each  Shareholder  of a Series shall have the
right at such times as may be permitted by the Trustees to require the Series to
redeem all or any part of his Shares at a  redemption  price per Share  equal to
the Net Asset Value per Share at such time as the Trustees shall have prescribed
by  resolution,  or, to the  extent  permitted  by the 1940 Act,  at such  other
redemption  price  and  at  such  times  as  the  Trustees  shall  prescribe  by
resolution.  In the absence of such  resolution,  the redemption price per Share
shall be the Net Asset Value next  determined  after  receipt by the Series of a
request for redemption in proper form less such charges as are determined by the
Trustees and  described in the Trust's  Registration  Statement  for that Series
under the Securities Act of 1933. The Trustees may specify  conditions,  prices,
and places of redemption,  may specify binding  requirements for the proper form
or forms of requests for  redemption  and may specify the amount of any deferred
sales charge to be withheld from redemption proceeds.  Payment of the redemption
price may be wholly or partly in securities or other assets at the value of such
securities or assets used in such determination of Net Asset Value, or may be in
cash.  Upon  redemption,  Shares may be reissued from time to time. The Trustees
may require  Shareholders to redeem Shares for any reason under terms set by the
Trustees,


                                      -25-
<PAGE>

including, but not limited to, the failure of a Shareholder to supply a taxpayer
identification  number if required  to do so, or to have the minimum  investment
required,  or to pay when due for the  purchase of Shares  issued to him. To the
extent  permitted by law, the Trustees may retain the proceeds of any redemption
of Shares required by them for payment of amounts due and owing by a Shareholder
to  the  Trust  or  any   Series  or  Class  or  any   governmental   authority.
Notwithstanding  the  foregoing,  the  Trustees  may  postpone  payment  of  the
redemption  price and may suspend the right of the  Shareholders  to require any
Series  or Class to  redeem  Shares  during  any  period of time when and to the
extent permissible under the 1940 Act.

         Section 3.  Determination  of Net Asset Value. The Trustees shall cause
the Net Asset Value of Shares of each Series or Class to be determined from time
to time in a  manner  consistent  with  applicable  laws  and  regulations.  The
Trustees may delegate the power and duty to determine  Net Asset Value per Share
to one or more  Trustees or officers of the Trust or to a custodian,  depository
or other agent  appointed for such purpose.  The Net Asset Value of Shares shall
be  determined  separately  for each  Series  or  Class at such  times as may be
prescribed by the Trustees or, in the absence of action by the  Trustees,  as of
the close of regular  trading on the New York Stock Exchange on each day for all
or part of which such Exchange is open for unrestricted trading.

         Section 4.  Suspension  of Right of  Redemption.  If, as referred to in
Section 2 of this Article, the Trustees postpone payment of the redemption price
and suspend the right of  Shareholders  to redeem their Shares,  such suspension
shall take effect at the time the Trustees shall specify, but not later than the
close  of  business  on the  business  day next  following  the  declaration  of
suspension. Thereafter Shareholders shall have no right of redemption or payment
until the Trustees declare the end of the suspension. If the right of redemption
is suspended,  a Shareholder  may either  withdraw his request for redemption or
receive payment based on the Net Asset Value per Share next determined after the
suspension terminates.

         Section 5.  Repurchase by Agreement.  The Trust may  repurchase  Shares
directly,  or through  the  Distributor  or  another  agent  designated  for the
purpose,  by agreement  with the owner  thereof at a price not exceeding the Net
Asset Value per Share determined as of the time when the purchase or contract of
purchase  is made or the Net  Asset  Value  as of any  time  which  may be later
determined,  provided payment is not made for the Shares prior to the time as of
which such Net Asset Value is determined.

                                      -26-
<PAGE>

                                   ARTICLE VII

                    SHAREHOLDERS' VOTING POWERS AND MEETINGS

         Section 1. Voting  Powers.  The  Shareholders  shall have power to vote
only with  respect to (a) the  election  of Trustees as provided in Section 2 of
this  Article;  (b) the removal of  Trustees as provided in Article II,  Section
3(d); (c) any investment  advisory or management contract as provided in Article
VIII,  Section 1; (d) any  termination  of the Trust as  provided in Article IX,
Section 4; (e) the amendment of this  Declaration  to the extent and as provided
in Article X, Section 8; and (f) such additional  matters  relating to the Trust
as may be required or authorized by law, this Declaration, or the By-laws or any
registration  of the Trust with the Commission or any State,  or as the Trustees
may consider desirable.

         On any matter submitted to a vote of the Shareholders, all Shares shall
be voted by  individual  Series or Class,  except (a) when  required by the 1940
Act,  Shares shall be voted in the  aggregate  and not by  individual  Series or
Class,  and (b) when the Trustees have  determined  that the matter  affects the
interests of more than one Series or Class,  then the  Shareholders  of all such
Series or Classes  shall be  entitled  to vote  thereon.  As  determined  by the
Trustees without the vote or consent of shareholders, on any matter submitted to
a vote of Shareholders either (i) each whole Share shall be entitled to one vote
as to any matter on which it is entitled to vote and each fractional Share shall
be entitled to a proportionate  fractional vote or (ii) each dollar of net asset
value  (number of Shares owned times net asset value per share of such Series or
Class, as applicable)  shall be entitled to one vote on any matter on which such
Shares are entitled to vote and each fractional  dollar amount shall be entitled
to a proportionate  fractional vote.  Without limiting the power of the Trustees
in any way to designate otherwise in accordance with the preceding sentence, the
Trustees hereby establish that each whole Share shall be entitled to one vote as
to any matter on which it is entitled to vote and each fractional Share shall be
entitled to a proportionate fractional vote. There shall be no cumulative voting
in the election of Trustees. Shares may be voted in person or by proxy or in any
manner provided for in the By-laws.  The By-laws may provide that proxies may be
given by any electronic or telecommunications device or in any other manner, but
if a proposal by anyone  other than the  officers or Trustees is  submitted to a
vote of the  Shareholders of any Series or Class, or if there is a proxy contest
or proxy  solicitation or proposal in opposition to any proposal by the officers
or  


                                      -27-
<PAGE>

Trustees,  Shares may be voted only in person or by written proxy.  Until Shares
of a Series are issued,  as to that Series the  Trustees may exercise all rights
of  Shareholders  and may take any action  required or  permitted to be taken by
Shareholders by law, this  Declaration or the By-laws.  Meetings of Shareholders
shall be called and notice  thereof and record dates therefor shall be given and
set as provided in the By-laws.

         Section 2. Quorum;  Required Vote.  One-third of the Outstanding Shares
of each Series or Class,  or one-third of the  Outstanding  Shares of the Trust,
entitled to vote in person or by proxy shall be a quorum for the  transaction of
business at a  Shareholders'  meeting with  respect to such Series or Class,  or
with  respect to the entire  Trust,  respectively.  Any lesser  number  shall be
sufficient for adjournments.  Any adjourned  session of a Shareholders'  meeting
may be held within a  reasonable  time  without  further  notice.  Except when a
larger vote is required by law, this  Declaration or the By-laws,  a majority of
the Shares voting at a Shareholders'  meeting in person or by proxy shall decide
any matters to be voted upon with respect to the entire Trust and a plurality of
such  Shares  shall  elect a  Trustee;  provided,  that if this  Declaration  or
applicable  law  permits  or  requires  that  Shares  be voted on any  matter by
individual  Series or  Classes,  then a majority of the Shares of that Series or
Class (or, if required by law, a majority of the Shares outstanding and entitled
to vote of that Series or Class) voting at a Shareholders'  meeting in person or
by proxy on the matter shall decide that matter  insofar as that Series or Class
is concerned. Shareholders may act as to the Trust or any Series or Class by the
written  consent  of a  majority  (or such other  amount as may be  required  by
applicable  law) of the  Outstanding  Shares of the  Trust or of such  Series or
Class, as the case may be.

         Section  3.  Record  Dates.   For  the  purpose  of   determining   the
Shareholders of any Series (or Class) who are entitled to receive payment of any
dividend or of any other distribution,  the Trustees may from time to time fix a
date,  which shall be before the date for the  payment of such  dividend or such
other  payment,  as the record date for  determining  the  Shareholders  of such
Series (or Class)  having the right to receive  such  dividend or  distribution.
Without fixing a record date, the Trustees may for  distribution  purposes close
the  register or transfer  books for one or more  Series (or  Classes)  any time
prior  to the  payment  of a  distribution.  Nothing  in this  Section  shall be
construed as  precluding  the Trustees from setting  different  record dates for
different Series (or Classes).

                                      -28-
<PAGE>

         Section 4.  Additional  Provisions.  The By-laws  may  include  further
provisions for Shareholders' votes and meetings and related matters.

                                  ARTICLE VIII

                        EXPENSES OF THE TRUST AND SERIES

         Section 1.  Payment  of  Expenses  by the Trust.  Subject to Article V,
Section 4, the Trust or a particular  Series shall pay, or shall  reimburse  the
Trustees from the assets belonging to all Series or the particular  Series,  for
their  expenses (or the  expenses of a Class of such Series) and  disbursements,
including,  but not limited to,  interest  charges,  taxes,  brokerage  fees and
commissions;  expenses of issue,  repurchase and  redemption of Shares;  certain
insurance  premiums;  applicable  fees,  interest  charges and expenses of third
parties,  including the Trust's investment advisers,  managers,  administrators,
distributors, custodians, transfer agents and fund accountants; fees of pricing,
interest,  dividend, credit and other reporting services; costs of membership in
trade associations;  telecommunications  expenses;  funds transmission expenses;
auditing,  legal and  compliance  expenses;  costs of forming  the Trust and its
Series and  maintaining  its  existence;  costs of  preparing  and  printing the
prospectuses of the Trust and each Series,  statements of additional information
and  Shareholder  reports  and  delivering  them to  Shareholders;  expenses  of
meetings of Shareholders and proxy solicitations therefor;  costs of maintaining
books and accounts;  costs of  reproduction,  stationery and supplies;  fees and
expenses of the Trustees; compensation of the Trust's officers and employees and
costs of other personnel  performing services for the Trust or any Series; costs
of Trustee meetings; Commission registration fees and related expenses; state or
foreign  securities laws registration  fees and related  expenses;  and for such
non-recurring items as may arise,  including  litigation to which the Trust or a
Series (or a Trustee or officer of the Trust acting as such) is a party, and for
all losses and  liabilities  by them incurred in  administering  the Trust.  The
Trustees shall have a lien on the assets belonging to the appropriate Series, or
in the case of an expense  allocable  to more than one Series,  on the assets of
each such Series, prior to any rights or interests of the Shareholders  thereto,
for  the  reimbursement  to them of such  expenses,  disbursements,  losses  and
liabilities.

         Section 2. Payment of Expenses by Shareholders. The Trustees shall have
the power, as frequently as they may determine,  to cause each  Shareholder,  or
each  Shareholder  of any 



                                      -29-
<PAGE>

particular  Series, to pay directly,  in advance or arrears,  for charges of the
Trust's custodian or transfer, shareholder servicing or similar agent, an amount
fixed from time to time by the  Trustees,  by setting off such  charges due from
such Shareholder from declared but unpaid dividends owed such Shareholder and/or
by  reducing  the number of Shares in the  account of such  Shareholder  by that
number of full and/or fractional Shares which represents the outstanding  amount
of such charges due from such Shareholder.


                                   ARTICLE IX

                                  MISCELLANEOUS

         Section 1. Trust Not a Partnership.  This  Declaration  creates a trust
and not a partnership. No Trustee shall have any power to bind personally either
the Trust's officers or any Shareholder.

         Section 2. Trustee Action. The exercise by the Trustees of their powers
and  discretion  hereunder  in good  faith and with  reasonable  care  under the
circumstances then prevailing shall be binding upon everyone interested. Subject
to the  provisions of Article IV, the Trustees shall not be liable for errors of
judgment or mistakes of fact or law.

         Section 3. Record  Dates.  The Trustees may fix in advance a date up to
ninety (90) days before the date of any Shareholders'  meeting,  or the date for
the  payment  of any  dividends  or  other  distributions,  or the  date for the
allotment of rights,  or the date when any change or  conversion  or exchange of
Shares  shall go into  effect  as a record  date  for the  determination  of the
Shareholders  entitled  to  notice  of,  and to vote at,  any such  meeting,  or
entitled  to  receive  payment of such  dividend  or other  distribution,  or to
receive any such  allotment of rights,  or to exercise such rights in respect of
any such change, conversion or exchange of Shares.

         Section  4.  Termination  of the  Trust.  (a)  This  Trust  shall  have
perpetual existence. Subject to the vote of a majority of the Shares outstanding
and entitled to vote of the Trust or of each Series to be affected, the Trustees
may

                  (i)sell and convey all or  substantially  all of the assets of
                  all  Series or any  affected  Series to  another  Series or to
                  another  entity  which is an  open-end 


                                      -30-
<PAGE>

                  investment  company as defined in the 1940 Act, or is a series
                  thereof,  for  adequate  consideration,  which may include the
                  assumption  of all  outstanding  obligations,  taxes and other
                  liabilities,  accrued  or  contingent,  of  the  Trust  or any
                  affected Series,  and which may include shares of or interests
                  in such Series, entity, or series thereof; or

                  (ii)  at  any  time  sell  and  convert   into  money  all  or
                  substantially  all of the assets of all Series or any affected
                  Series.

Upon making reasonable provision for the payment of all known liabilities of all
Series or any  affected  Series in either  (i) or (ii),  by such  assumption  or
otherwise,  the Trustees shall  distribute the remaining  proceeds or assets (as
the case may be) ratably  among the  Shareholders  of all Series or any affected
Series;  however,  the  payment to any  particular  Class of such  Series may be
reduced by any fees, expenses or charges allocated to that Class.

         (b) The  Trustees may take any of the actions  specified in  subsection
(a) (i) and (ii) above  without  obtaining  the vote of a majority of the Shares
Outstanding and entitled to vote of the Trust or any Series if a majority of the
Trustees  determines that the  continuation of the Trust or Series is not in the
best interests of the Trust, such Series, or their respective  Shareholders as a
result of factors or events adversely affecting the ability of the Trust or such
Series to conduct its business and operations in an economically  viable manner.
Such  factors and events may include the  inability  of the Trust or a Series to
maintain  its assets at an  appropriate  size,  changes  in laws or  regulations
governing  the Trust or the Series or affecting  assets of the type in which the
Trust or Series invests, or economic developments or trends having a significant
adverse impact on the business or operations of the Trust or such Series.

         (c) Upon completion of the  distribution  of the remaining  proceeds or
assets  pursuant to subsection (a), the Trust or affected Series shall terminate
and the  Trustees  and the  Trust  shall be  discharged  of any and all  further
liabilities and duties  hereunder with respect thereto and the right,  title and
interest  of  all  parties  therein  shall  be  canceled  and  discharged.  Upon
termination  of the Trust,  following  completion of winding up of its business,
the  Trustees  shall  cause  a  certificate  of   cancellation  of  the  Trust's
certificate  of trust to be filed in 


                                      -31-
<PAGE>

accordance  with the Delaware Act,  which  certificate  of  cancellation  may be
signed by any one Trustee.

         Section 5. Reorganization. (a) Notwithstanding anything else herein, to
change the Trust's  form or place of  organization  the  Trustees  may,  without
Shareholder  approval  unless such approval is required by  applicable  law, (i)
cause the Trust to merge or consolidate  with or into one or more  entities,  if
the surviving or resulting  entity is the Trust or another  open-end  management
investment company under the 1940 Act, or a series thereof, that will succeed to
or assume the Trust's  registration under the 1940 Act, (ii) cause the Shares to
be  exchanged  under or pursuant  to any state or federal  statute to the extent
permitted  by law,  or (iii)  cause the Trust to  incorporate  under the laws of
Delaware  or  any  other  U.S.   jurisdiction.   Any   agreement  of  merger  or
consolidation  or  certificate of merger may be signed by a majority of Trustees
and facsimile signatures conveyed by electronic or telecommunication means shall
be valid.

         (b)  Pursuant  to and in  accordance  with the  provisions  of  Section
3815(f) of the Delaware Act, an agreement of merger or consolidation approved by
the Trustees in  accordance  with this Section 5 may effect any amendment to the
Declaration or effect the adoption of a new trust  instrument of the Trust if it
is the surviving or resulting trust in the merger or consolidation.

         (c) The Trustees may create one or more business trusts to which all or
any part of the  assets,  liabilities,  profits  or  losses  of the Trust or any
Series or Class thereof may be transferred and may provide for the conversion of
Shares in the Trust or any Series or Class thereof into beneficial  interests in
any such newly created trust or trusts or any series or classes thereof.

         Section  6.  Declaration  of  Trust.  The  original  or a copy  of this
Declaration  of Trust  and of each  amendment  hereto  or  Declaration  of Trust
supplemental  shall be kept at the office of the Trust where it may be inspected
by any Shareholder. Anyone dealing with the Trust may rely on a certificate by a
Trustee or an officer of the Trust as to the  authenticity of the Declaration of
Trust or any such  amendments or supplements and as to any matters in connection
with the Trust.  The  masculine  gender  herein  shall  include the feminine and
neuter genders.  Headings  herein are for convenience  only and shall not affect
the construction of this Declaration of Trust.  This Declaration of Trust may be
executed  in any  number  of  counterparts,  each of which  shall be  deemed  an
original.

                                      -32-
<PAGE>

         Section 7.  Applicable  Law.  This  Declaration  and the Trust  created
hereunder  are  governed by and  construed  and  administered  according  to the
Delaware  Act and  the  applicable  laws of the  State  of  Delaware;  provided,
however,  that there shall not be applicable to the Trust,  the Trustees or this
Declaration  of Trust  (a) the  provisions  of  Section  3540 of Title 12 of the
Delaware  Code, or (b) any  provisions of the laws  (statutory or common) of the
State of Delaware  (other than the  Delaware  Act)  pertaining  to trusts  which
relate to or  regulate  (i) the filing  with any court or  governmental  body or
agency of trustee  accounts  or  schedules  of trustee  fees and  charges,  (ii)
affirmative  requirements  to post  bonds  for  trustees,  officers,  agents  or
employees  of a  trust,  (iii)  the  necessity  for  obtaining  court  or  other
governmental approval concerning the acquisition, holding or disposition of real
or personal  property,  (iv) fees or other sums payable to  trustees,  officers,
agents or employees of a trust,  (v) the allocation of receipts and expenditures
to income or principal,  (vi)  restrictions  or limitations  on the  permissible
nature, amount or concentration of trust investments or requirements relating to
the titling,  storage or other manner of holding of trust  assets,  or (vii) the
establishment of fiduciary or other standards of responsibilities or limitations
on the acts or powers of trustees,  which are inconsistent  with the limitations
or liabilities or authorities and powers of the Trustees set forth or referenced
in this  Declaration.  The Trust shall be of the type commonly called a Delaware
business  trust,  and,  without  limiting the provisions  hereof,  the Trust may
exercise  all  powers  which  are  ordinarily  exercised  by such a trust  under
Delaware law. The Trust  specifically  reserves the right to exercise any of the
powers or  privileges  afforded  to trusts or actions  that may be engaged in by
trusts under the Delaware Act, and the absence of a specific reference herein to
any such  power,  privilege  or action  shall  not imply  that the Trust may not
exercise such power or privilege or take such actions.

         Section 8. Amendments.  The Trustees may, without any Shareholder vote,
amend or  otherwise  supplement  this  Declaration  by  making an  amendment,  a
Declaration  of Trust  supplemental  hereto or an  amended  and  restated  trust
instrument;  provided,  that  Shareholders  shall  have the right to vote on any
amendment  (a) which would affect the voting rights of  Shareholders  granted in
Article  VII,  Section l, (b) to this  Section 8, (c) required to be approved by
Shareholders by law or by the Trust's  registration  statement(s) filed with the
Commission,  and (d) submitted to them by the Trustees in their discretion.  Any
amendment  submitted to Shareholders  which the Trustees  determine would affect
the  Shareholders of any Series shall be authorized by vote of the


                                      -33-
<PAGE>

Shareholders  of such Series and no vote shall be required of  Shareholders of a
Series not  affected.  Notwithstanding  anything  else herein,  any amendment to
Article IV which would have the effect of reducing the indemnification and other
rights  provided  thereby to Trustees,  officers,  employees,  and agents of the
Trust or to Shareholders or former Shareholders,  and any repeal or amendment of
this  sentence  shall  each  require  the  affirmative  vote of the  holders  of
two-thirds of the Outstanding Shares of the Trust entitled to vote thereon.

         Section 9.  Derivative  Actions.  In addition to the  requirements  set
forth in Section 3816 of the Delaware Act, a Shareholder  may bring a derivative
action on behalf of the Trust only if the following conditions are met:

         (a)  Shareholders  eligible to bring such  derivative  action under the
Delaware Act who hold at least 10% of the  Outstanding  Shares of the Trust,  or
10% of the  Outstanding  Shares  of the  Series  or Class to which  such  action
relates, shall join in the request for the Trustees to commence such action; and

         (b) the  Trustees  must be  afforded  a  reasonable  amount  of time to
consider such  shareholder  request and to investigate  the basis of such claim.
The  Trustees  shall  be  entitled  to  retain  counsel  or  other  advisers  in
considering  the merits of the request and shall require an  undertaking  by the
Shareholders  making such request to reimburse  the Trust for the expense of any
such advisers in the event that the Trustees determine not to bring such action.

         Section 10.  Fiscal  Year.  The fiscal year of the Trust shall end on a
specified  date as set forth in the By-laws.  The Trustees may change the fiscal
year of the Trust without Shareholder approval.

         Section  11.  Severability.  The  provisions  of this  Declaration  are
severable.  If the  Trustees  determine,  with the advice of  counsel,  that any
provision hereof conflicts with the 1940 Act, the regulated  investment  company
provisions  of the  Internal  Revenue  Code or with  other  applicable  laws and
regulations, the conflicting provision shall be deemed never to have constituted
a part of this Declaration; provided, however, that such determination shall not
affect any of the remaining  provisions of this Declaration or render invalid or
improper  any  action  taken  or  omitted  prior to such  determination.  If any
provision  hereof shall be held invalid or  unenforceable  in any  jurisdiction,
such invalidity or unenforceability  shall attach 


                                      -34-
<PAGE>

only to such provision only in such  jurisdiction and shall not affect any other
provision of this Declaration.

                                      -35-
<PAGE>


         IN WITNESS WHEREOF, the undersigned have executed this instrument as of
the date first written above.



/s/John F. Cogan, Jr.                /s/Marguerite A. Piret
John F. Cogan, Jr.*                  Marguerite A. Piret*


Dr. Richard H. Egdahl                /s/David D. Tripple
Richard H. Egdahl, M.D.*             David D. Tripple*


/s/Margaret B.W. Graham              /s/Stephen K. West
Margaret B.W. Graham*                Stephen K. West*


/s/John W. Kendrick                  /s/John Winthrop
John W. Kendrick*                    John Winthrop*



* Each of the above-signed persons has
  executed this instrument as Trustee and
  not individually.



                                      -36-


                                     BY-LAWS

                                       OF

                              PIONEER MID-CAP FUND

                                    ARTICLE I

                                   DEFINITIONS


         All  capitalized  terms have the respective  meanings given them in the
Agreement  and  Declaration  of Trust of Pioneer  Mid-Cap Fund dated January 12,
1996, as amended or restated from time to time.


                                   ARTICLE II

                                     OFFICES

         Section  1.  Principal  Office.  Until  changed  by the  Trustees,  the
principal office of the Trust shall be in Boston, Massachusetts.

         Section  2.  Other  Offices.  The Trust may have  offices in such other
places  without as well as within the State of Delaware as the Trustees may from
time to time determine.

         Section  3.  Registered  Office  and  Registered  Agent.  The  Board of
Trustees shall establish a registered  office in the State of Delaware and shall
appoint as the Trust's  registered  agent for service of process in the State of
Delaware  an  individual  resident  of  the  State  of  Delaware  or a  Delaware
corporation  or a corporation  authorized  to transact  business in the State of
Delaware;  in each case the business office of such registered agent for service
of process shall be identical with the registered Delaware office of the Trust.


                                   ARTICLE III

                                  SHAREHOLDERS

         Section 1.  Meetings.  Meetings of the  Shareholders  of the Trust or a
Series or Class thereof shall be held as provided in the Declaration of Trust at
such  place  within or  without  the State of  Delaware  as the  Trustees  shall
designate.  The holders of one-third of the Outstanding Shares of the Trust or a
Series or Class thereof present in person or by proxy and entitled to vote shall
<PAGE>

constitute a quorum at any meeting of the  Shareholders of the Trust or a Series
or Class thereof.

         Section  2.  Notice  of  Meetings.   Notice  of  all  meetings  of  the
Shareholders,  stating the time,  place and  purposes of the  meeting,  shall be
given  by the  Trustees  by mail or  telegraphic  or  electronic  means  to each
Shareholder  at his address as recorded on the  register of the Trust  mailed at
least (10) days and not more than ninety (90) days before the meeting, provided,
however,  that notice of a meeting  need not be given to a  Shareholder  to whom
such notice need not be given under the proxy rules of the Commission  under the
1940 Act and the Securities Exchange Act of 1934, as amended.  Only the business
stated in the notice of the meeting shall be  considered  at such  meeting.  Any
adjourned  meeting may be held as adjourned  without further  notice.  No notice
need be given to any  Shareholder  who shall have  failed to inform the Trust of
his current  address or if a written waiver of notice,  executed before or after
the meeting by the Shareholder or his attorney  thereunto  authorized,  is filed
with the records of the meeting.

         Section 3. Record Date for Meetings and Other Purposes. For the purpose
of determining the Shareholders who are entitled to notice of and to vote at any
meeting, or to participate in any distribution,  or for the purpose of any other
action,  the Trustees  may from time to time close the  transfer  books for such
period,  not  exceeding  thirty (30) days,  as the  Trustees may  determine;  or
without  closing the  transfer  books the  Trustees may fix a date not more than
ninety  (90)  days  prior  to  the  date  of  any  meeting  of  Shareholders  or
distribution  or other  action  as a record  date for the  determination  of the
persons to be treated as  Shareholders  of record for such purposes,  except for
dividend payments which shall be governed by the Declaration of Trust.

         Section  4.  Proxies.  At any  meeting of  Shareholders,  any holder of
Shares entitled to vote thereat may vote by proxy,  provided that no proxy shall
be voted at any  meeting  unless  it shall  have  been  placed  on file with the
Secretary, or with such other officer or agent of the Trust as the Secretary may
direct,  for verification prior to the time at which such vote shall be taken. A
proxy shall be deemed  signed if the  shareholder's  name is placed on the proxy
(whether by manual signature, typewriting, telegraphic transmission,  facsimile,
other  electronic  means or otherwise) by the  Shareholder or the  Shareholder's
attorney-in-fact.  Proxies may be given by any  electronic or  telecommunication
device except as otherwise provided in the Declaration of Trust.  Proxies may be
solicited in the name of one or more  Trustees or one or more of the officers of
the Trust.  Only Shareholders of record shall be entitled to vote. As determined
by the  Trustees


                                      -2-
<PAGE>

without the vote or consent of  Shareholders,  on any matter submitted to a vote
of Shareholders, either (i) each whole Share shall be entitled to one vote as to
any matter on which it is  entitled to vote and each  fractional  Share shall be
entitled  to a  proportionate  fractional  vote or (ii) each dollar of net asset
value  (number of Shares owned times net asset value per Share of such Series or
Class, as applicable)  shall be entitled to one vote on any matter on which such
Shares are entitled to vote and each fractional  dollar amount shall be entitled
to a proportionate  fractional  vote.  Without limiting their power to designate
otherwise  in  accordance  with  the  preceding  sentence,   the  Trustees  have
established in the  Declaration of Trust that each whole share shall be entitled
to one vote as to any matter on which it is entitled by the Declaration of Trust
to vote and fractional  shares shall be entitled to a  proportionate  fractional
vote.  When any Share is held  jointly by several  persons,  any one of them may
vote at any meeting in person or by proxy in respect of such Share,  but if more
than one of them  shall be present  at such  meeting in person or by proxy,  and
such joint  owners or their  proxies so  present  disagree  as to any vote to be
cast,  such  vote  shall not be  received  in  respect  of such  Share.  A proxy
purporting to be executed by or on behalf of a Shareholder shall be deemed valid
unless  challenged  at or prior  to its  exercise,  and the  burden  of  proving
invalidity  shall rest on the  challenger.  If the holder of any such share is a
minor or a person of unsound  mind,  and  subject to  guardianship  or the legal
control of any other person as regards the charge or  management  of such Share,
he may vote by his  guardian  or such  other  person  appointed  or having  such
control, and such vote may be given in person or by proxy.

         Section  5.  Abstentions  and  Broker  Non-Votes.   Outstanding  Shares
represented in person or by proxy (including Shares which abstain or do not vote
with respect to one or more of any proposals presented for Shareholder approval)
will be counted  for  purposes of  determining  whether a quorum is present at a
meeting.  Abstentions will be treated as Shares that are present and entitled to
vote for  purposes  of  determining  the number of Shares  that are  present and
entitled  to vote  with  respect  to any  particular  proposal,  but will not be
counted  as a vote in favor of such  proposal.  If a broker or  nominee  holding
Shares  in  "street  name"  indicates  on  the  proxy  that  it  does  not  have
discretionary  authority to vote as to a particular proposal,  those Shares will
not be considered as present and entitled to vote with respect to such proposal.

         Section 6.  Inspection  of  Records.  The records of the Trust shall be
open  to  inspection  by  Shareholders  to  the  same  extent  as  is  permitted
shareholders of a Delaware business corporation.

                                      -3-
<PAGE>

         Section 7. Action  without  Meeting.  Any action  which may be taken by
Shareholders may be taken without a meeting if a majority of Outstanding  Shares
entitled  to vote on the matter (or such larger  proportion  thereof as shall be
required by law)  consent to the action in writing and the written  consents are
filed with the records of the meetings of  Shareholders.  Such consents shall be
treated for all purposes as a vote taken at a meeting of Shareholders.


                                   ARTICLE IV

                                    TRUSTEES

         Section  1.  Meetings  of the  Trustees.  The  Trustees  may  in  their
discretion  provide for regular or stated  meetings of the  Trustees.  Notice of
regular or stated  meetings  need not be given.  Meetings of the Trustees  other
than regular or stated  meetings shall be held whenever called by the President,
the Chairman or by any one of the Trustees,  at the time being in office. Notice
of the time and place of each  meeting  other than  regular  or stated  meetings
shall be given by the  Secretary or an Assistant  Secretary or by the officer or
Trustee  calling the  meeting  and shall be mailed to each  Trustee at least two
days  before  the  meeting,  or shall be given by  telephone,  cable,  wireless,
facsimile or other electronic mechanism to each Trustee at his business address,
or personally delivered to him at least one day before the meeting.  Such notice
may, however, be waived by any Trustee. Notice of a meeting need not be given to
any Trustee if a written  waiver of notice,  executed by him before or after the
meeting, is filed with the records of the meeting, or to any Trustee who attends
the meeting without  protesting prior thereto or at its commencement the lack of
notice to him. A notice or waiver of notice  need not specify the purpose of any
meeting.  The  Trustees may meet by means of a telephone  conference  circuit or
similar communications  equipment by means of which all persons participating in
the meeting can hear each other at the same time and participation by such means
shall be deemed to have been held at a place  designated  by the Trustees at the
meeting.  Participation  in a  telephone  conference  meeting  shall  constitute
presence in person at such meeting. Any action required or permitted to be taken
at any meeting of the Trustees may be taken by the Trustees without a meeting if
a majority  of the  Trustees  consent to the action in writing  and the  written
consents are filed with the records of the  Trustees'  meetings.  Such  consents
shall be treated as a vote for all purposes.

         Section 2.  Quorum and Manner of  Acting.  A majority  of the  Trustees
shall be present in person at any regular or special 


                                      -4-
<PAGE>

meeting of the Trustees in order to constitute a quorum for the  transaction  of
business  at such  meeting  and  (except  as  otherwise  required  by  law,  the
Declaration  of Trust or these  By-laws)  the act of a majority of the  Trustees
present at any such meeting,  at which a quorum is present,  shall be the act of
the Trustees. In the absence of a quorum, a majority of the Trustees present may
adjourn the meeting from time to time until a quorum shall be present. Notice of
an adjourned meeting need not be given.


                                    ARTICLE V

                                   COMMITTEES

         Section 1.  Executive and Other  Committees.  The Trustees by vote of a
majority  of all the  Trustees  may elect  from  their own  number an  Executive
Committee  to consist of not less than three (3)  members to hold  office at the
pleasure of the Trustees,  which shall have the power to conduct the current and
ordinary business of the Trust while the Trustees are not in session,  including
the purchase and sale of  securities  and the  designation  of  securities to be
delivered upon redemption of Shares of the Trust or a Series  thereof,  and such
other powers of the Trustees as the Trustees may delegate to them,  from time to
time,  except  those  powers  which by law,  the  Declaration  of Trust or these
By-laws they are prohibited  from  delegating.  The Trustees may also elect from
their own number other  Committees from time to time; the number  composing such
Committees,  the powers conferred upon the same (subject to the same limitations
as with respect to the Executive  Committee)  and the term of membership on such
Committees  to be  determined  by the  Trustees.  The Trustees  may  designate a
chairman of any such Committee. In the absence of such designation the Committee
may elect its own Chairman.

         Section 2. Meetings,  Quorum and Manner of Acting. The Trustees may (1)
provide for stated meetings of any Committee,  (2) specify the manner of calling
and notice  required  for  special  meetings of any  Committee,  (3) specify the
number of members of a Committee  required to constitute a quorum and the number
of members of a Committee  required to exercise  specified  powers  delegated to
such  Committee,  (4)  authorize  the making of decisions to exercise  specified
powers by written  assent of the  requisite  number of  members  of a  Committee
without a meeting, and (5) authorize the members of a Committee to meet by means
of a telephone conference circuit.

         The Executive  Committee shall keep regular minutes of its meetings and
records of decisions  taken without a meeting and


                                      -5-
<PAGE>

cause them to be recorded in a book  designated for that purpose and kept in the
office of the Trust.


                                   ARTICLE VI

                                    OFFICERS

         Section 1.  General  Provisions.  The  officers of the Trust shall be a
President,  a Treasurer  and a Secretary,  who shall be elected by the Trustees.
The Trustees may elect or appoint such other  officers or agents as the business
of the Trust may require,  including  one or more Vice  Presidents,  one or more
Assistant  Secretaries,  and one or more Assistant Treasurers.  The Trustees may
delegate  to any  officer  or  committee  the power to appoint  any  subordinate
officers or agents.

         Section  2.  Term of Office  and  Qualifications.  Except as  otherwise
provided by law, the Declaration of Trust or these By-laws,  the President,  the
Treasurer,  the  Secretary  and any other  officer shall each hold office at the
pleasure of the Board of Trustees  or until his  successor  shall have been duly
elected and qualified. The Secretary and the Treasurer may be the same person. A
Vice  President and the  Treasurer or a Vice  President and the Secretary may be
the same person,  but the offices of Vice  President,  Secretary  and  Treasurer
shall not be held by the same person.  The President shall hold no other office,
however, the President may also serve as Chairman. Except as above provided, any
two offices may be held by the same person.  Any officer may be but none need be
a Trustee or Shareholder.

         Section 3. Removal. The Trustees,  at any regular or special meeting of
the  Trustees,  may remove any  officer  with or without  cause,  by a vote of a
majority of the Trustees  then in office.  Any officer or agent  appointed by an
officer or  committee  may be removed with or without  cause by such  appointing
officer or committee.

         Section 4. Powers and Duties of the  Chairman.  The  Trustees  may, but
need not,  appoint  from among their  number a Chairman.  When  present he shall
preside at the meetings of the  Shareholders  and of the  Trustees.  He may call
meetings  of the  Trustees  and of any  committee  thereof  whenever he deems it
necessary.  He shall be an executive  officer of the Trust and shall have,  with
the President,  general supervision over the business and policies of the Trust,
subject to the limitations imposed upon the President,  as provided in Section 5
of this Article VI.

                                      -6-
<PAGE>

         Section 5. Powers and Duties of the  President.  The President may call
meetings of the Trustees and of any Committee thereof when he deems it necessary
and shall preside at all meetings of the Shareholders. Subject to the control of
the Trustees and to the control of any Committees of the Trustees,  within their
respective spheres, as provided by the Trustees,  he shall at all times exercise
a general supervision and direction over the affairs of the Trust. He shall have
the power to employ  attorneys  and counsel for the Trust or any Series or Class
thereof and to employ such subordinate officers, agents, clerks and employees as
he may find  necessary  to transact  the  business of the Trust or any Series or
Class  thereof.  He shall also have the power to grant,  issue,  execute or sign
such powers of attorney,  proxies or other documents as may be deemed  advisable
or necessary in furtherance of the interests of the Trust or any Series thereof.
The President shall have such other powers and duties,  as from time to time may
be conferred upon or assigned to him by the Trustees.

         Section  6.  Powers and Duties of Vice  Presidents.  In the  absence or
disability of the  President,  the Vice  President or, if there be more than one
Vice President, any Vice President designated by the Trustees, shall perform all
the duties and may exercise any of the powers of the  President,  subject to the
control of the Trustees.  Each Vice President shall perform such other duties as
may be assigned to him from time to time by the Trustees and the President.

         Section 7. Powers and Duties of the Treasurer.  The Treasurer  shall be
the principal  financial and accounting  officer of the Trust.  He shall deliver
all funds of the Trust or any  Series or Class  thereof  which may come into his
hands to such Custodian as the Trustees may employ.  He shall render a statement
of condition of the finances of the Trust or any Series or Class  thereof to the
Trustees as often as they shall require the same and he shall in general perform
all the duties  incident to the office of a Treasurer  and such other  duties as
from time to time may be assigned to him by the Trustees.  The  Treasurer  shall
give a bond for the faithful  discharge  of his duties,  if required so to do by
the Trustees, in such sum and with such surety or sureties as the Trustees shall
require.

         Section 8. Powers and Duties of the Secretary. The Secretary shall keep
the minutes of all meetings of the Trustees  and of the  Shareholders  in proper
books provided for that purpose; he shall have custody of the seal of the Trust;
he shall have charge of the Share transfer  books,  lists and records unless the
same are in the charge of a transfer  agent.  He shall  attend to the giving and
serving of all notices by the Trust in accordance 


                                      -7-
<PAGE>

with the  provisions  of these  By-laws and as  required by law;  and subject to
these By-laws,  he shall in general perform all duties incident to the office of
Secretary  and such other  duties as from time to time may be assigned to him by
the Trustees.

         Section 9. Powers and Duties of Assistant  Officers.  In the absence or
disability  of the  Treasurer,  any officer  designated  by the  Trustees  shall
perform all the duties,  and may exercise any of the powers,  of the  Treasurer.
Each  officer  shall  perform  such  other  duties  as from  time to time may be
assigned  to him  by the  Trustees.  Each  officer  performing  the  duties  and
exercising  the powers of the  Treasurer,  if any, and any Assistant  Treasurer,
shall give a bond for the faithful discharge of his duties, if required so to do
by the  Trustees,  in such sum and with such surety or sureties as the  Trustees
shall require.

         Section 10. Powers and Duties of Assistant Secretaries.  In the absence
or  disability  of the  Secretary,  any  Assistant  Secretary  designated by the
Trustees  shall perform all the duties,  and may exercise any of the powers,  of
the Secretary.  Each Assistant Secretary shall perform such other duties as from
time to time may be assigned to him by the Trustees.

         Section 11.  Compensation  of Officers  and Trustees and Members of the
Advisory  Board.  Subject to any  applicable  provisions of the  Declaration  of
Trust,  the compensation of the officers and Trustees and members of an advisory
board  shall be  fixed  from  time to time by the  Trustees  or,  in the case of
officers,  by any  Committee or officer upon whom such power may be conferred by
the Trustees.  No officer shall be prevented from receiving such compensation as
such officer by reason of the fact that he is also a Trustee.


                                   ARTICLE VII

                                   FISCAL YEAR

         The fiscal year of the Trust shall begin on the first day of October in
each year and  shall end on the last day of  November  in each  year,  provided,
however,  that the Trustees  may from time to time change the fiscal  year.  The
taxable year of each Series of the Trust shall be as  determined by the Trustees
from time to time.


                                  ARTICLE VIII

                                      SEAL

                                      -8-
<PAGE>

         The  Trustees  may adopt a seal  which  shall be in such form and shall
have such inscription thereon as the Trustees may from time to time prescribe.


                                   ARTICLE IX

                        SUFFICIENCY AND WAIVERS OF NOTICE

         Whenever  any  notice  whatever  is  required  to be given by law,  the
Declaration  of Trust or these By-laws,  a waiver thereof in writing,  signed by
the person or persons entitled to said notice,  whether before or after the time
stated therein,  shall be deemed equivalent thereto. A notice shall be deemed to
have  been  sent  by  mail,  telegraph,  cable,  wireless,  facsimile  or  other
electronic means for the purposes of these By-laws when it has been delivered to
a representative  of any company holding itself out as capable of sending notice
by such means with instructions that it be so sent.


                                    ARTICLE X

                                   AMENDMENTS

         These By-laws, or any of them, may be altered,  amended or repealed, or
new By-laws may be adopted by (a) vote of a majority of the  Outstanding  Shares
voting in person or by proxy at a meeting of  Shareholders  and entitled to vote
or (b) by the  Trustees,  provided,  however,  that no  By-law  may be  amended,
adopted or  repealed  by the  Trustees  if such  amendment,  adoption  or repeal
requires,  pursuant to law, the Declaration of Trust or these By-laws, a vote of
the Shareholders.


                                 END OF BY-LAWS



                                      -9-

                           PIONEER MID-CAP FUND


                     ORGANIZED AS A BUSINESS TRUST UNDER THE
                          LAWS OF THE STATE OF DELAWARE



                                       SEE REVERSE SIDE FOR CERTAIN DEFINITIONS



This is to certify that



                                                              is the owner of



    FULLY PAID AND NON-ASSESSABLE SHARES OF BENEFICIAL INTEREST, WITHOUT PAR
          VALUE, OF THE TRUST OR SERIES OF THE TRUST IDENTIFIED ABOVE.

transferable  only on the books of the Trust, by the holder hereof, in person or
by  duly  authorized  attorney,  upon  surrender  of this  Certificate  properly
endorsed.  The aforesaid holder is entitled to require the Trust to purchase all
or any part of the Shares represented by this Certificate at net asset value, as
more fully set forth on the reverse of this Certificate. This Certificate is not
valid until countersigned by the Transfer Agent.

         IN WITNESS  WHEREOF,  the said Trust has caused this  Certificate to be
signed by its duly authorized officers and its seal to be hereunto affixed.

Dated:


                                  Countersigned:

                                                PIONEERING SERVICES CORPORATION
                                                                 Transfer Agent




                                                             Authorized Officer



Treasurer                         President





<PAGE>


                                     REVERSE


         THE  REGISTERED  HOLDER  OF THIS  CERTIFICATE  IS  ENTITLED  TO ALL THE
RIGHTS,  INTEREST AND PRIVILEGES OF A SHAREHOLDER AS PROVIDED BY THE ARTICLES OF
INCORPORATION  AND BY-LAWS OF THE FUND, AS AMENDED,  WHICH ARE  INCORPORATED  BY
REFERENCE HEREIN. IN PARTICULAR,  THE SHARES REPRESENTED BY THIS CERTIFICATE ARE
TRANSFERABLE BY THE HOLDER,  IN PERSON OR BY HIS DULY AUTHORIZED  ATTORNEY,  BUT
ONLY ON SURRENDER OF THIS CERTIFICATE PROPERLY ENDORSED AND WHEN THE TRANSFER IS
MADE ON THE BOOKS OF THE FUND.
         THE  HOLDER  OF THIS  CERTIFICATE,  AS  PROVIDED  IN SAID  ARTICLES  OF
INCORPORATION  AND  BY-LAWS,  AS  AMENDED,  SHALL NOT IN ANY WISE BE  PERSONALLY
LIABLE FOR ANY DEBT, OBLIGATION OR ACT OF THE FUND.
         ANY  SHAREHOLDER  DESIRING  TO DISPOSE OF HIS  SHARES MAY  DEPOSIT  HIS
CERTIFICATE,  DULY ENDORSED IN BLANK OR ACCOMPANIED BY AN INSTRUMENT OF TRANSFER
EXECUTED  IN BLANK,  AT THE OFFICE OF  PIONEERING  SERVICES  CORPORATION  OR ANY
SUCCESSOR  TRANSFER  AGENT OF THE FUND,  TOGETHER WITH AN  IRREVOCABLE  OFFER IN
WRITING TO SELL THE SHARES  REPRESENTED  THEREBY AT THE NET ASSET VALUE  THEREOF
AND THE FUND WILL  THEREAFTER  PURCHASE SAID SHARES FOR CASH AT NET ASSET VALUE.
THE COMPUTATION OF NET ASSET VALUE, THE LIMITATIONS UPON THE DATE OF PAYMENT AND
PROVISIONS  DEALING WITH  SUSPENSION  OF THIS RIGHT IN CERTAIN  EMERGENCIES  ARE
FULLY DESCRIBED IN SAID ARTICLES OF INCORPORATION AND BY-LAWS, AS AMENDED.

         NOTICE:  THE SIGNATURE TO THIS ASSIGNMENT MUST CORRESPOND WITH THE NAME
AS  WRITTEN  UPON  THE FACE OF THE  CERTIFICATE  IN  EVERY  PARTICULAR,  WITHOUT
ALTERATION OR ENLARGEMENT OR ANY CHANGE WHATEVER.

         SIGNATURES  MUST BE  GUARANTEED  IN  ACCORDANCE  WITH THE THEN  CURRENT
PROSPECTUS OF THE FUND.

         The following  abbreviations,  when used in the inscription on the face
of this certificate,  shall be construed as though they were written out in full
according to applicable laws or regulations:

TEN COM -- as tenants in common
TEN ENT -- as tenants by the entireties
JT TEN -- as joint tenants with rights of survivorship UGMA/"state abbreviation"
- -- Uniform Gifts to Minors UTMA/"state  abbreviation/age" -- Uniform Transfer to
Minors

Additional abbreviations that do not appear in the above list may also be used.



<PAGE>


     For Value Received, ______________________ hereby sell, assign and transfer
unto

PLEASE INSERT SOCIAL SECURITY OR
OTHER IDENTIFYING NUMBER OF ASSIGNEE

|                                               |
|                                               |


     (PLEASE  PRINT OR  TYPEWRITE  NAME AND  ADDRESS,  INCLUDING  ZIP  CODE,  OF
ASSIGNEE)






     Shares  represented by the within  Certificate,  and do hereby  irrevocably
constitute and appoint




Attorney to transfer  the said shares on the books of the within named Fund with
full power of substitution in the premises.

         Dated,


                                                      Owner


                                          Signature of Co-Owner, if any


           IMPORTANT:      BEFORE SIGNING, READ AND COMPLY CAREFULLY WITH
                           NOTICE PRINTED ABOVE.


Signature(s) guaranteed by:







                               MANAGEMENT CONTRACT

         THIS  AGREEMENT  dated this 1st day of February,  1996 between  Pioneer
Mid-Cap Fund, a Delaware business trust (the "Trust"), and Pioneering Management
Corporation, a Delaware corporation (the "Manager").

                               W I T N E S S E T H

         WHEREAS,   the  Trust  is  registered  as  an  open-end,   diversified,
management  investment  company  under the  Investment  Company Act of 1940,  as
amended  (the  "1940  Act"),  and has filed  with the  Securities  and  Exchange
Commission  (the  "Commission")  a  registration  statement  (the  "Registration
Statement")  for the purpose of registering its shares for public offering under
the Securities Act of 1933, as amended (the "1933 Act"),

         WHEREAS,  the parties  hereto deem it  mutually  advantageous  that the
Manager  should be engaged,  subject to the  supervision of the Trust's Board of
Trustees and officers, to manage the Trust.

         NOW,  THEREFORE,  in consideration of the mutual covenants and benefits
set forth herein, the Trust and the Manager do hereby agree as follows:

         1. (a) The Manager  will  regularly  provide the Trust with  investment
research,  advice and  supervision  and will furnish  continuously an investment
program for the Trust, consistent with the investment objectives and policies of
the Trust. The Manager will determine from time to time what securities shall be
purchased for the Trust,  what securities shall be held or sold by the Trust and
what portion of the Trust's  assets shall be held  uninvested  as cash,  subject
always to the  provisions  of the Trust's  Certificate  of Trust,  Agreement and
Declaration of Trust, By-Laws and its registration statements under the 1940 Act
and under the 1933 Act covering the Trust's shares, as filed with the Securities
and  Exchange  Commission,  and  to  the  investment  objectives,  policies  and
restrictions  of the  Trust,  as each of the same  shall be from time to time in
effect, and subject,  further, to such policies and instructions as the Board of
Trustees  of the  Trust  may from  time to time  establish.  To  carry  out such
determinations,  the Manager will exercise full discretion and act for the Trust
in the same manner and with the same force and effect as the Trust  itself might
or could do with respect to purchases,  sales or other transactions,  as well as
with respect to all other things  necessary or incidental to the  furtherance or
conduct of such purchases, sales or other transactions.

         (b) The Manager will, to the extent reasonably  required in the conduct
of the business of the Trust and upon the Trust's 

<PAGE>

request,  furnish to the Trust research,  statistical and advisory  reports upon
the industries, businesses, corporations or securities as to which such requests
shall be made, whether or not the Trust shall at the time have any investment in
such industries,  businesses,  corporations or securities.  The Manager will use
its best efforts in the preparation of such reports and will endeavor to consult
the persons  and  sources  believed  by it to have  information  available  with
respect to such industries, businesses, corporations or entities.

         (c) The Manager will maintain all books and records with respect to the
Trust's securities  transactions required by sub-paragraphs (b)(5), (6), (9) and
(10) and  paragraph  (f) of Rule  31a-1  under the 1940 Act  (other  than  those
records being  maintained by the  custodian or transfer  agent  appointed by the
Trust) and  preserve  such records for the periods  prescribed  therefor by Rule
31a-2 under the 1940 Act. The Manager will also provide to the Board of Trustees
such periodic and special reports as the Board may reasonably request.

         2. (a) Except as otherwise  provided  herein,  the Manager,  at its own
expense,  shall  furnish to the Trust office space in the offices of the Manager
or in such  other  place  as may be  agreed  upon  from  time to  time,  and all
necessary  office  facilities,  equipment and personnel for managing the Trust's
affairs and investments, and shall arrange, if desired by the Trust, for members
of the Manager's organization to serve as officers or agents of the Trust.

         (b) The Manager  shall pay directly or reimburse the Trust for: (i) the
compensation  (if any) of the Trustees who are  affiliated  with, or "interested
persons"  (as defined in the 1940 Act) of, the  Manager and all  officers of the
Trust as such; and (ii) all expenses not hereinafter specifically assumed by the
Trust  where  such  expenses  are  incurred  by the  Manager  or by the Trust in
connection  with the  management  of the  affairs  of,  and the  investment  and
reinvestment of the assets of, the Trust.

         (c) The Trust shall  assume and shall pay: (i) charges and expenses for
fund accounting, pricing and appraisal services and related overhead, including,
to the extent such  services are  performed by personnel of the Manager,  or its
affiliates, office space and facilities and personnel compensation, training and
benefits;  (ii) the charges  and  expenses  of  auditors;  (iii) the charges and
expenses of any custodian, transfer agent, plan agent, dividend disbursing agent
and registrar  appointed by the Trust with respect to the Trust;  (iv) issue and
transfer  taxes   chargeable  to  the  Trust  in  connection   with   securities
transactions  to which the Trust is a party;  (v) insurance  premiums,  interest
charges,  dues and fees for membership in trade  associations  and


                                      -2-
<PAGE>

all taxes and  corporate  fees  payable by the Trust to federal,  state or other
governmental  agencies;  (vi) fees and  expenses  involved  in  registering  and
maintaining  registrations  of the Trust and/or its shares with the  Commission,
state or blue sky  securities  agencies  and foreign  countries,  including  the
preparation of Prospectuses and Statements of Additional  Information for filing
with the Commission;  (vii) all expenses of shareholders' and Trustees' meetings
and  of  preparing,  printing  and  distributing  prospectuses,  notices,  proxy
statements and all reports to shareholders and to governmental agencies;  (viii)
charges and expenses of legal  counsel to the Trust and the  Trustees;  (ix) any
distribution fees paid by the Trust in accordance with Rule 12b-1 promulgated by
the Commission  pursuant to the 1940 Act; (x)  compensation of those Trustees of
the Trust who are not affiliated with or interested persons of the Manager,  the
Trust  (other than as  Trustees),  The  Pioneer  Group,  Inc. or Pioneer  Trusts
Distributor,  Inc.; (xi) the cost of preparing and printing share  certificates;
and (xii) interest on borrowed money, if any.

         (d) In addition to the expenses  described  in Section 2(c) above,  the
Trust shall pay all  brokers' and  underwriting  commissions  chargeable  to the
Trust in connection with securities transactions to which the Trust is a party.

         3. (a) The Trust  shall pay to the  Manager,  as  compensation  for the
Manager's  services and expenses  assumed  hereunder,  a fee as set forth below.
Management  fees payable  hereunder  shall be computed daily and paid monthly in
arrears.


               (i) For the period  beginning on the date this  Contract  becomes
effective and ending on June 30, 1996,  the fee shall be paid at the annual rate
of 0.50% of the Trust's  average daily net assets up to $250  million,  0.48% of
the next $50 million,  and 0.45% of the excess over $300 million (the "Carryover
Fee").

               (ii) For periods after June 30, 1996,  the fee payable  hereunder
shall be composed of the Basic Fee (defined below) and a Performance  Adjustment
(defined  below) to the Basic Fee based upon the  investment  performance of the
Trust in relation to the Standard & Poors Mid-Cap 400 Index (the "Index").


               (iii) The Basic Fee is payable at an annual rate of 0.625% of the
Trust's average daily net assets.


               (iv) The Performance  Adjustment consists of an adjustment to the
monthly  Basic Fee to be made by applying a performance  adjustment  rate to the
average  net  assets of the Trust over the  performance  period.  The  resulting
dollar  figure will be 


                                      -3-
<PAGE>

added to or  subtracted  from the  Basic  Fee  depending  on  whether  the Trust
experienced better or worse performance than the Index.


         The Performance  Adjustment rate is 0.02% per annum for each percentage
point rounded to the nearer point (the higher point if exactly  one-half  point)
that the Trust's investment  performance for the period was better or worse than
the record of the index as then constituted.  The maximum performance adjustment
is 0.20% per annum.


         The  performance  period will commence on February 1, 1996.  During the
first five months  thereafter  there will be no  Performance  Adjustment and the
Carryover  Fee will be in  effect.  Starting  with July,  1996 and  ending  with
December,  1997 (the "Transition Period"),  the Performance Adjustment will take
effect  only if this would have the effect of lowering  the Basic Fee.  Starting
with January,  1997, the  Performance  Fee will take effect for purposes of both
raising and lowering the Basic Fee.


         Starting with July,  1996, a new month will be added to the performance
period each month until the performance period equals 36 months. Thereafter, the
performance  period will  consist of the  current  month plus the  preceding  35
months.


         The Trust's  investment  performance  will be measured by comparing the
(i) opening net asset value of one share of the Trust on the first  business day
of the performance period with (ii) the closing net asset value of the one share
of the  Trust as of the last  business  day of such  period.  In  computing  the
investment  performance  of the Trust and the  investment  record of the  Index,
distributions  of realized  capital gains,  the value of capital gains taxes per
share  paid  or  payable  on  undistributed  realized  long-term  capital  gains
accumulated  to the end of such  period  and  dividends  paid out of  investment
income on the part of the Trust,  and all cash  distributions  of the  companies
whose stock comprise the Index, will be treated as reinvested in accordance with
Rule 205-1 or any other  applicable  rule under the  Investment  Advisers Act of
1940, as the same from time to time may be amended.

         The computation of the  performance  adjustment will not be cumulative.
Except during the Transition  Period,  a positive fee adjustment will apply even
though the  performance  of the Trust over some period of time  shorter than the
performance  period  has been  behind  that of the  Index,  and,  conversely,  a
negative fee adjustment  will apply for the month even though the performance of
the Trust over some period of time shorter than the performance  period has been
ahead of that of the Index.

                                      -4-
<PAGE>


               (v) One-twelth of the annual Performance Adjustment rate shall be
applied to the  average of the net assets of the Trust  (computed  in the manner
set forth in the  Declaration of Trust of the Trust adjusted as provided  above,
if  applicable)  determined  as of the close of  business on each  business  day
through out the performance  period.  The resulting dollar amount is added to or
deducted from the Basic Fee.


               (vi) In the event of termination of this Agreement, the Carryover
Fee or Basic Fee then in effect  shall be  computed  on the basis of the  period
ending on the last business day on which this  Agreement is in effect subject to
a pro rata  adjustment  based on the number of days elapsed in the current month
as a  percentage  of the total  number of days in such month.  The amount of any
Performance  Adjustment  to the Basic Fee will be  computed  on the basis of and
applied  to net  assets  averaged  over the 36 month  period  ending on the last
business  day on  which  this  Agreement  is in  effect,  provided  that if this
Agreement has been in effect less than 36 months,  the computation  will be made
on the basis of the period of time during which it has been in effect.

         (b) If the  operating  expenses  of the  Trust in any year  exceed  the
limits set by state  securities laws or regulations in states in which shares of
the Trust are sold, the amount payable to the Manager under subsection (a) above
will  be  reduced  (but  not  below  $0),  and  the  Manager  shall  make  other
arrangements  concerning  expenses  but,  in each  instance,  only as and to the
extent  required  by such laws or  regulations.  If amounts  have  already  been
advanced  to the Manager  under this  Agreement,  the  Manager  will return such
amounts to the Trust to the extent required by the preceding sentence.

         (c) In  addition  to the  foregoing,  the Manager may from time to time
agree not to impose all or a portion of its fee otherwise  payable hereunder (in
advance of the time such fee or a portion thereof would otherwise accrue) and/or
undertake to pay or reimburse the Trust for all or a portion of its expenses not
otherwise  required  to be  borne or  reimbursed  by the  Manager.  Any such fee
reduction or undertaking  may be  discontinued or modified by the Manager at any
time.

         4.It  is   understood   that  the   Manager  may  employ  one  or  more
sub-investment  advisers (each a "Subadviser")  to provide  investment  advisory
services  to the  Trust by  entering  into a  written  agreement  with each such
Subadviser;  provided,  that any such  agreement  first shall be approved by the
vote of a majority of the Trustees, including a majority of the Trustees who are
not "interested  persons" (as defined in the 1940 Act) of the Trust, the Manager
or any such  Subadviser,  at a meeting of  Trustees  called  for the  purpose of
voting  on such  approval  and by the


                                      -5-
<PAGE>

affirmative  vote of a  "majority  of the  outstanding  voting  securities"  (as
defined in the 1940 Act) of the Trust.  The  authority  given to the  Manager in
Sections 1 through 6 hereof  may be  delegated  by it under any such  agreement;
provided,  that any  Subadviser  shall be subject to the same  restrictions  and
limitations on investments  and brokerage  discretion as the Manager.  The Trust
agrees that the  Manager  shall not be  accountable  to the Trust or the Trust's
shareholders  for any loss or other liability  relating to specific  investments
directed by any Subadviser, even though the Manager retains the right to reverse
any such investment,  because, in the event a Subadviser is retained,  the Trust
and the Manager will rely almost exclusively on the expertise of such Subadviser
for the selection and monitoring of specific investments.

         5.The  Manager  will not be liable for any error of judgment or mistake
of law or for any loss  sustained  by reason of the  adoption of any  investment
policy or the purchase, sale, or retention of any security on the recommendation
of the Manager,  whether or not such  recommendation  shall have been based upon
its own  investigation  and research or upon  investigation and research made by
any other individual, firm or corporation,  but nothing contained herein will be
construed  to protect the  Manager  against  any  liability  to the Trust or its
shareholders by reason of willful misfeasance,  bad faith or gross negligence in
the  performance  of its duties or by reason of its  reckless  disregard  of its
obligations and duties under this Agreement.

         6. (a) Nothing in this  Agreement will in any way limit or restrict the
Manager or any of its officers,  Trustees, or employees from buying,  selling or
trading in any securities for its or their own accounts or other  accounts.  The
Manager  may  act  as an  investment  advisor  to  any  other  person,  firm  or
corporation,  and may perform  management  and any other  services for any other
person, association,  corporation, firm or other entity pursuant to any contract
or  otherwise,  and take any action or do any thing in  connection  therewith or
related  thereto;  and no such  performance  of management or other  services or
taking of any such  action  or doing of any such  thing  shall be in any  manner
restricted  or  otherwise  affected  by any  aspect of any  relationship  of the
Manager  to or with the Trust or deemed to  violate  or give rise to any duty or
obligation  of the Manager to the Trust except as otherwise  imposed by law. The
Trust  recognizes that the Manager,  in effecting  transactions  for its various
accounts,  may not always be able to take or liquidate  investment  positions in
the same security at the same time and at the same price.

         (b) In connection with purchases or sales of securities for the account
of the Trust, neither the Manager nor any of its Trustees, officers or employees
will act as a principal or agent


                                      -6-
<PAGE>

or receive any commission except as permitted by the 1940 Act. The Manager shall
arrange for the placing of all orders for the  purchase  and sale of  securities
for the Trust's account with brokers or dealers selected by the Manager.  In the
selection of such brokers or dealers and the placing of such orders, the Manager
is directed at all times to seek for the Trust the most favorable  execution and
net price available except as described herein. It is also understood that it is
desirable for the Trust that the Manager have access to supplemental  investment
and market research and security and economic  analyses  provided by brokers who
may execute brokerage transactions at a higher cost to the Trust than may result
when  allocating  brokerage  to other  brokers on the basis of seeking  the most
favorable price and efficient execution. Therefore, the Manager is authorized to
place  orders for the purchase  and sale of  securities  for the Trust with such
brokers,  subject  to  review  by the  Trust's  Trustees  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 or its affiliates' services to other clients.

         (c) On  occasions  when the  Manager  deems the  purchase  or sale of a
security to be in the best interest of the Trust as well as other  clients,  the
Manager,  to the  extent  permitted  by  applicable  laws and  regulations,  may
aggregate  the  securities  to be sold or  purchased in order to obtain the best
execution and lower brokerage commissions,  if any. In such event, allocation of
the  securities  so purchased or sold,  as well as the expenses  incurred in the
transaction,  will be made by the Manager in the manner it  considers  to be the
most equitable and consistent with its fiduciary obligations to the Trust and to
such clients.

         7.This  Agreement  shall become  effective on the date hereof and shall
remain in force until , 1997 and from year to year thereafter,  but only so long
as its  continuance is approved  annually by a vote of the Trustees of the Trust
voting in person,  including a majority of its  Trustees  who are not parties to
this Agreement or "interested  persons" (as defined in the 1940 Act) of any such
parties,  at a meeting  of  Trustees  called  for the  purpose of voting on such
approval or by a vote of a "majority of the outstanding  voting  securities" (as
defined in the 1940 Act) of the Trust, subject to the right of the Trust and the
Manager to terminate this contract as provided in Section 8 hereof.

         8.Either party hereto may, without penalty, terminate this Agreement by
vote of its Board of Trustees or Directors,  as the case may be, or by vote of a
"majority of its outstanding voting securities" (as defined in the 1940 Act) and
the giving of 60 days' written notice to the other party.

                                      -7-
<PAGE>

         9.This  Agreement  shall  automatically  terminate  in the event of its
assignment. For purposes of this Agreement, the term "assignment" shall have the
meaning given it by Section 2(a)(4) of the 1940 Act.

         10. The Trust agrees that in the event that neither the Manager nor any
of its affiliates  acts as an investment  adviser to the Trust,  the name of the
Trust  will be  changed  to one that  does not  contain  the name  "Pioneer"  or
otherwise suggest an affiliation with the Manager.

         11.The Manager is an independent  contractor and not an employee of the
Trust for any purpose.  If any occasion  should arise in which the Manager gives
any advice to its clients  concerning the shares of the Trust,  the Manager will
act solely as  investment  counsel for such clients and not in any way on behalf
of the Trust or any series thereof.

         12.This  Agreement  states the entire  agreement of the parties hereto,
and is intended to be the complete and exclusive  statement of the terms hereof.
It may not be added to or changed  orally,  and may not be modified or rescinded
except by a writing signed by the parties hereto and in accordance with the 1940
Act, when applicable.

         13.This  Agreement and all  performance  hereunder shall be governed by
and construed in accordance with the laws of The Commonwealth of Massachusetts.

         14.Any  term or  provision  of  this  Agreement  which  is  invalid  or
unenforceable in any jurisdiction  shall, as to such jurisdiction be ineffective
to the extent of such invalidity or  unenforceability  without rendering invalid
or  unenforceable  the  remaining  terms  or  provisions  of this  Agreement  or
affecting  the validity or  enforceability  of any of the terms or provisions of
this Agreement in any other jurisdiction.

         15.This  Agreement  may be  executed  simultaneously  in  two  or  more
counterparts,  each of  which  shall be  deemed  an  original,  but all of which
together shall constitute one and the same instrument.


<PAGE>



         IN WITNESS WHEREOF, the parties hereto have caused this Agreement to be
executed by their duly  authorized  officers and their seal to be hereto affixed
as of the day and year first above written.


<PAGE>




ATTEST:                                  PIONEER MID-CAP FUND



/s/Joseph P. Barri                       By:      /s/John F. Cogan, Jr.
Joseph P. Barri                                   John F. Cogan, Jr.
Secretary                                         Chairman and President


ATTEST:                                  PIONEERING MANAGEMENT CORPORATION



/s/Joseph P. Barri                       By:      /s/David D. Tripple
Joseph P. Barri                                   David D. Tripple
Secretary                                         President




                             UNDERWRITING AGREEMENT


THIS  UNDERWRITING  AGREEMENT,  dated  this 1st day of  February,  1996,  by and
between Pioneer Mid-Cap Fund, a Delaware business trust ("Pioneer"), and Pioneer
Funds Distributor, Inc., a Massachusetts corporation (the "Underwriter").


                               W I T N E S S E T H

WHEREAS,  Pioneer  is  registered  as  an  open-end,   diversified,   management
investment  company  under the  Investment  Company Act of 1940, as amended (the
"1940  Act"),  and  has  filed  a  registration   statement  (the  "Registration
Statement") with the Securities and Exchange  Commission (the  "Commission") for
the purpose of  registering  shares of beneficial  interest for public  offering
under the Securities Act of 1933, as amended;

WHEREAS,  the Underwriter engages in the purchase and sale of securities both as
a broker and a dealer and is registered as a  broker-dealer  with the Commission
and is a member in good  standing  of the  National  Association  of  Securities
Dealers, Inc. (the "NASD");

WHEREAS,  the parties hereto deem it mutually  advantageous that the Underwriter
should act as Principal Underwriter, as defined in the 1940 Act, for the sale to
the public of the shares of beneficial  interest of the securities  portfolio of
each  series of  Pioneer  which the  Trustees  may  establish  from time to time
(individually, a "Portfolio" and collectively, the "Portfolios"); and

NOW, THEREFORE,  in consideration of the mutual covenants and benefits set forth
herein, Pioneer and the Underwriter do hereby agree as follows:

         1.Pioneer does hereby grant to the  Underwriter the right and option to
purchase  shares of  beneficial  interest  of each  class of each  Portfolio  of
Pioneer (the  "Shares")  for sale to  investors  either  directly or  indirectly
through other  broker-dealers.  The  Underwriter is not required to purchase any
specified  number of Shares,  but will  purchase  from Pioneer only a sufficient
number of Shares as may be necessary to fill unconditional  orders received from
time to time by the Underwriter from investors and dealers.

         2.The Underwriter shall offer Shares to the public at an offering price
based upon the net asset value of the Shares, to be calculated for each class of
shares as described in the  Registration  Statement,  including the  Prospectus,
filed with the 

<PAGE>

Commission  and in effect at the time of the  offering,  plus  sales  charges as
approved by the Underwriter and the Trustees of Pioneer and as further  outlined
in Pioneer's  Prospectus.  The offering price shall be subject to any provisions
set forth in the Prospectus from time to time with respect  thereto,  including,
without   limitation,   rights   of   accumulation,    letters   of   intention,
exchangeability of shares,  reinstatement privileges,  net asset value purchases
by  certain   persons  and   reinvestments   of   dividends   and  capital  gain
distributions.

         3.In  the  case  of  all  Shares  sold  to  investors   through   other
broker-dealers,  a portion of applicable sales charges will be reallowed to such
broker-dealers  who are members of the NASD or, in the case of certain  sales by
banks or certain sales to foreign  nationals,  to brokers or dealers exempt from
registration  with the Commission.  The concession  reallowed to  broker-dealers
shall be set forth in a written sales  agreement and shall be generally the same
for broker-dealers providing comparable levels of sales and service.

         4.This Agreement shall terminate on any anniversary hereof if its terms
and renewal have not been approved by a majority vote of the Trustees of Pioneer
voting in person,  including a majority of its Trustees who are not  "interested
persons" of the Trust and who have no direct or indirect  financial  interest in
the operation of the  Underwriting  Agreement (the "Qualified  Trustees"),  at a
meeting of  Trustees  called for the  purpose of voting on such  approval.  This
Agreement may also be terminated at any time, without payment of any penalty, by
Pioneer on 60 days' written  notice to the  Underwriter,  or by the  Underwriter
upon similar notice to Pioneer. This Agreement may also be terminated by a party
upon five (5) days'  written  notice  to the other  party in the event  that the
Commission  has issued an order or obtained an  injunction  or other court order
suspending  effectiveness of the Registration Statement covering these Shares of
Pioneer. Finally, this Agreement may also be terminated by Pioneer upon five (5)
days' written notice to the Underwriter  provided either of the following events
has  occurred:  (i) the NASD has  expelled  the  Underwriter  or  suspended  its
membership  in that  organization;  or  (ii)  the  qualification,  registration,
license or right of the  Underwriter  to sell Shares in a  particular  state has
been  suspended  or cancelled in a state in which sales of the Shares of Pioneer
during the most  recent 12 month  period  exceeded  10% of all Shares of Pioneer
sold by the Underwriter during such period.

         5.The  compensation  for the services of the Underwriter as a principal
underwriter  under  this  Agreement  shall be (i) that part of the sales  charge
which is retained by the Underwriter  after allowance of discounts to dealers as
set forth in the Registration  Statement,  including the Prospectus,  filed with
the 


                                      -2-
<PAGE>

Commission and in effect at the time of the offering, as amended, and (ii) those
amounts payable to the Underwriter as reimbursement of expenses  pursuant to any
distribution  plan for Pioneer which may be in effect.  Nothing contained herein
shall relieve  Pioneer of any obligation  under its  management  contract or any
other contract with any affiliate of the Underwriter.

         6.The  parties  to  this  Agreement  acknowledge  and  agree  that  all
liabilities  arising  hereunder,  whether  direct  or  indirect,  of any  nature
whatsoever, including without limitation, liabilities arising in connection with
any  agreement of Pioneer or its  Trustees as set forth herein to indemnify  any
party to this  Agreement or any other person,  if any, shall be satisfied out of
the  assets  of  Pioneer  and that no  Trustee,  officer  or holder of shares of
beneficial  interest  of  Pioneer  shall  be  personally  liable  for any of the
foregoing liabilities.  Pioneer's Agreement and Declaration of Trust, as amended
from time to time,  is on file in the  Office of the  Secretary  of State of the
State of Delaware.  The  Declaration of Trust describes in detail the respective
responsibilities  and  limitations on liability of the Trustees,  officers,  and
holders of Shares of beneficial interest.

         7.This  Agreement  shall  automatically  terminate  in the event of its
assignment (as that term is defined in the 1940 Act).

         8.In the event of any dispute between the parties, this Agreement shall
be construed according to the laws of The Commonwealth of Massachusetts.



<PAGE>


IN WITNESS  WHEREOF,  the  parties  hereto have  caused  this  instrument  to be
executed by their duly  authorized  officers and their seal to be hereto affixed
as of the day and year first above written.

ATTEST:                                      PIONEER MID-CAP FUND



- ----------------------------                 ---------------------------
Joseph P. Barri                              John F. Cogan, Jr.
Secretary                                    President


ATTEST:                                      PIONEER FUNDS DISTRIBUTOR, INC.



- ---------------------------                  ---------------------------
Joseph P. Barri                              Robert L. Butler
Clerk                                        President



                                      -3-


                         PIONEER FUNDS DISTRIBUTOR, INC.
                                 60 State Street
                                Boston, MA 02109
                                 (617) 742-7825

                                 SALES AGREEMENT

Gentlemen:

      Pioneer Funds Distributor,  Inc. (PFD), acts as principal underwriter,  as
defined in the Investment  Company Act of 1940,  for the  registered  investment
companies  (the "Funds")  listed on Appendix A attached (as amended from time to
time by PFD.)  Acting as a  principal,  PFD  offers to sell  shares of the Funds
subject to the conditions set forth in this agreement and subsequent  amendments
thereto.

      1. Shares  purchased  from PFD for sale to the public shall be offered and
sold at the price or prices,  and on the terms and conditions,  set forth in the
currently  effective  prospectus of the Funds, as amended or  supplemented  from
time to time (the "Prospectus" or "Prospectuses"). In the sale of such shares to
the  public  you shall act as dealer  for your own  account or as agent for your
customer  and in no  transaction  shall  you have any  authority  to act or hold
yourself  out as agent for PFD,  any of the Funds,  the Funds'  Custodians,  the
Funds' Transfer  agent, or any other party,  and nothing in this agreement shall
constitute you a partner, employee or agent of ours or give you any authority to
act for PFD.  Neither  PFD nor the funds shall be liable for any of your acts or
obligations as a  broker-dealer  under this  agreement.  Nothing herein shall be
construed to prohibit your acting as agent for one or both customers in the sale
of shares by one customer to another and charging such  customer(s) a reasonable
commission.

       2. Shares  purchased  from PFD for sale to the public  shall be purchased
only to cover  orders  previously  received by you from your  customers.  Shares
purchased  for your own bona  fide  investment  shall not be  reoffered  or sold
except to the applicable Fund or to PFD. PFD also agrees to purchase shares only
for investment or to cover orders received.

       3. If you  purchase  shares  from your  customers,  you agree to pay such
customers not less than the redemption  price in effect on the date of purchase,
as defined in the prospectus of the applicable  Fund.  Sales of shares at prices
reflecting a discount, concession, commission or other reallowance shall be made
only to registered  broker-dealers which are members of the National Association
of  Securities  Dealers  Inc.  (NASD)  and who  also  have  entered  into  sales
agreements with PFD.

       4. Only unconditional  orders for a designated number of shares or dollar
amount of investment shall be accepted.  Procedures  relating to handling orders
shall be conveyed to you from time to time. All orders are subject to acceptance
or rejection by PFD in our sole discretion.

       5. If any shares sold to or through you under the terms of this agreement
are  repurchased by PFD or by the issuer or are tendered for  redemption  within
seven business days after the date of our confirmation of the original  purchase
by you, we both agree to pay to the Fund all commissions on such shares.

       6.  Sales by you to the  public  shall earn a  commission  computed  as a
percentage of the  applicable  offering price and which varies with the size and
nature of each such purchase.  The terms and conditions affecting the applicable
offering  prices  on shares  sold  with a  front-end  sales  charge ,  including
features such as combined purchase, rights of accumulation, Letters of Intention
and net asset value purchases, are described in the prospectuses.  The schedules
of commissions generally payable with respect to sales of the Funds are outlined
on Appendix A to this agreement.  Commission checks for less than $1 will not be
issued.

      PFD may, from time to time,  offer  additional  commissions  or bonuses on
sales by you or your representatives  without otherwise revising this agreement.
Any such additional  commissions or bonuses shall take effect in accordance with
the terms and conditions contained in written notification to you.

       7.  Remittance of the net amount due for shares  purchased from PFD shall
be  made  payable  to  Pioneering  Services  Corporation  (PSC)  Agent  for  the
Underwriter,  in New York or Boston funds, within three days of our confirmation
of sale to you, or within such  shorter  time as  specified  by the rules of the
NASD or of a registered clearing agent through which the transaction is settled.
Payments  made to PSC should be sent to Post Office Box 9014,  Boston,  MA 02205
(or  wired  to  an  account   designated  by  PSC),  along  with  your  transfer
instructions on the appropriate copy of our confirmation of sale to you. If such
payment is not  received by PSC, we reserve  the right to  liquidate  the shares
purchased for your account and risk.  Promptly  upon receipt of payment,  shares
sold to you shall be  deposited by PSC to an account on the books of the Fund(s)
in accordance  with your  instructions.  Certificates  will not be issued unless
specifically requested and we reserve the right to levy a charge for issuance of
certificates.

       8. You represent  that you are and, at the time of purchasing  any shares
of the Funds, will be registered as a broker-dealer  with the US. Securities and
Exchange  Commission (SEC) or are exempt from such registration;  if required to
be registered as a broker-dealer  you are a member in good standing of the NASD;
you are qualified to act as a broker-dealer  in the states or  jurisdictions  in
which you intend to offer shares of the Funds;  you will abide by all applicable
federal and state  statutes and the rules of the NASD;  and when making sales to
citizens  or  residents  of  foreign  countries,  that  you  will  abide  by all
applicable  laws and  regulations of that country.  Expulsion or suspension from
the  NASD or  revocation  or  suspension  of SEC  registration  shall  act as an
immediate cancellation of this agreement.

       9. No person is authorized to make any representations  concerning shares
of any of the Funds except those  contained  in the then current  Prospectus  or
Statement of Additional Information for such Fund. In purchasing shares from PFD
you shall rely solely on the representations  contained in such Prospectuses and
Statements of Additional Information.

      10.  Additional  copies  of  the  current   prospectuses,   Statements  of
Additional   Information  (SAI),  and  other  literature  will  be  supplied  in
reasonable quantities upon request.


<PAGE>


      11. We reserve the right in our  discretion  to suspend  sales or withdraw
the offering of shares of any Fund  entirely.  Either party hereto has the right
to cancel this agreement  upon five days' written notice to the other party.  We
reserve  the right to amend  this  agreement  at any time and you agree  that an
order to purchase  shares of any one of the Funds  placed by you after notice of
such amendment has been sent to you shall  constitute your agreement to any such
amendment.

      12. All written communications to PFD should be sent to the above address.
All written communications to you will be sent to your address listed below.

      13. This  agreement  shall  become  effective  upon  receipt by us of your
acceptance  hereof and supersedes any prior agreement between us with respect to
the sales of Shares of any of the Funds.

      14. This  agreement  shall be  construed  in  accordance  with the laws of
Massachusetts. The parties hereby agree that all disputes between us of whatever
subject matter, whether existing on the date hereof or arising hereafter,  shall
be  submitted  to  arbitration  in  accordance  with  the then  current  Code of
Arbitration Procedure of the NASD, the Uniform Arbitration Act or similar rules.
Arbitration shall take place in the city of Boston, Massachusetts.  Any decision
that shall be made in such arbitration shall be final and binding and shall have
the  same  force  and  effect  as a  judgment  made  in  a  court  of  competent
jurisdiction.

      15. You appoint the transfer  agent for each Fund as your agent to execute
the purchase  transactions  of Shares of such Fund in accordance  with the terms
and provisions of any account,  program,  plan or service established or used by
your  customers and to confirm each  purchase to your  customers on your behalf,
except as modified in writing by the transfer agent, and you guarantee to us and
the Fund the legal capacity of your customers so purchasing  such Shares and any
other person in whose name the Shares are to be registered.

                                          PIONEER FUNDS DISTRIBUTOR, INC.
Date:           ,

                                          By:__________________________________
                                             William A. Misata
                                             Vice President


The undersigned hereby accepts the offer set forth in above letter.

By:__________________________________________________


Title:________________________________________________



                      RETAIN ONE COPY AND RETURN THE OTHER

<PAGE>


                                   APPENDIX A

                                     CLASS A

                                   Schedule 1

<TABLE>
<CAPTION>
<S>                                    <C>                                 <C>
Pioneer Fund                           Pioneer Three                       Pioneer Equity-Income Fund
Pioneer II                             Pioneer Gold Shares                 Pioneer Growth Shares
Pioneer International Growth Fund      Pioneer Europe Fund                 Pioneer Real Estate Shares
Pioneer Capital Growth Fund            Pioneer Emerging Markets Fund       Pioneer Small Company Fund
Pioneer India Fund

                                  Sales Charge
                                  as % of Public           Broker/Dealer
                                  Offering Price            Commission
Purchase Amount                                            
Less than  $ 50,000..........        5.75                     5.00%
 $ 50,000 -  99,999..........        4.50                     4.00
  100,000 - 249,999..........        3.50                     3.00
  250,000 - 499,999..........        2.50                     2.00
  500,000 - 999,999..........        2.00                     1.75
1,000,000  or more ..........        none                 a) see below


                                   Schedule 2

Pioneer Bond Fund                      Pioneer America Income Trust        Pioneer Tax-Free Income Fund
Pioneer Income Fund

                                  Sales Charge
                                  as % of Public           Broker/Dealer
Purchase Amount                   Offering Price            Commission
Less than  $100,000..........                                                                        4.50               4.00%
 $100,000 - 249,999..........        3.50                      3.00
  250,000 -  499,000.........        2.50                      2.00
  500,000 -  999,999.........        2.00                      1.75
1,000,000  or more ..........        none                  a) see below


                                   Schedule 3

Pioneer Massachusetts Double           Pioneer New York Triple             Pioneer California Double
 Tax-Free Fund                         Tax-Free Fund                       Tax-Free Fund
Pioneer Intermediate Tax-Free Fund

                                  Sales Charge
                                  as % of Public           Broker/Dealer
Purchase Amount                   Offering Price            Commission
Less than  $ 50,000..........        3.50                     3.00%
 $ 50,000 -   99,999.........        3.00                     2.50
  100,000 - 499,999..........        2.50                     2.00
  500,000 - 999,999..........        2.00                     1.75
1,000,000  or more ..........        none                 a) see below

                                   Schedule 4

Pioneer Short-Term Income Trust
                                  Sales Charge
                                  as % of Public           Broker/Dealer
Purchase Amount                   Offering Price            Commission
Less than  $ 50,000..........        2.50                     2.00%
 $ 50,000 -   99,999.........        2.00                     1.75
  100,000 - 249,999..........        1.50                     1.25
  250,000 - 999,999..........        1.00                     1.00
1,000,000  or more ..........        none                 a) see below


a) Purchases of $1 million or more, and certain group plans,  are not subject to
an initial sales charge. PFD may pay a commission to broker-dealers who initiate
and are  responsible  for such purchases at the following rate: for funds listed
on  schedules 3 and 4 above,  .50 of 1% on purchases of $1 million to $5 million
and .10 of 1% on the excess over $5 million.  For funds listed on shedules 1 and
2, the rate is as follows: 1% on the first $5 million invested, .50 of 1% on the
next $45 million and .25 of 1% on the excess over 50 million. A one-year prepaid
service fee is  included  in this  commission.  These  commissions  shall not be
payable if the purchaser is affiliated with the broker-dealer or if the purchase
represents the reinvestment of a redemption made during the previous 12 calendar
months. A contingent  deferred sales charge will be payable on these investments
in the event of share redemption  within 12 months following the share purchase,
at the  rate of 1% on  funds  in  schedules  1 and 2 ; and .50 of 1% on funds in
schedules 3 and 4, of the lesser of the value of the shares redeemed  (exclusive
of reinvested dividend and capital gain distributions) or the total cost of such
shares.  For  additional  information  about the  broker-dealer  commission  and
contingent deferred sales charge applicable to these transactions,  refer to the
Fund's prospectus.
</TABLE>



                             PLEASE RETAIN THIS COPY


<PAGE>




                                   Schedule 5

<TABLE>
<CAPTION>
<S>                                    <C>                                 <C>
Pioneer Cash Reserves Fund                  Pioneer U.S.                   Pioneer Tax-Free Money Fund
                                        Government Money Fund
                                              No Load





                                     CLASS B

   Schedule 1                             Schedule 2                                  Schedule 3
   ----------                             ----------                                  --------

<S>                                  <C>                                    <C>
Pioneer Equity Income Fund           Pioneer Intermediate Tax-Free          Pioneer Short-Term Income Trust
Pioneer Bond Fund                            Fund
Pioneer Capital Growth Fund
Pioneer Europe Fund
Pioneer Gold Share
Pioneer America Income Trust
Pioneer Emerging Markets Fund
Pioneer India Fund
Pioneer Cash Reserves Fund
Pioneer Growth Shares
Pioneer Income Fund
Pioneer Tax-Free Income Fund
Pioneer Small Company Fund

Broker/Dealer
Commission               4.00%              3.00%               2.00%
- ----------

Year Since
Purchase                 CDSC%              CDSC%               CDSC%

First                     4.0                3.0                 2.0
Second                    4.0                3.0                 2.0
Third                     3.0                2.0                 1.0
Fourth                    3.0                1.0                 none
Fifth                     2.0                none                none
Sixth                     1.0                none             To A Class
Seventh                  none             To A Class
Eigth                    none
Ninth                 To A Class

b)   Dealer  Commission  includes a first year service fee equal to 0.25% of the
     amount invested in all Class B shares.
</TABLE>


<PAGE>
                         PIONEER FUNDS DISTRIBUTOR, INC.
                                 60 State Street
                                Boston, MA 02109
                                 (617) 742-7825


                    SUPPLEMENTAL SALES AND SERVICE AGREEMENT



You have entered into a Sales  Agreement  with Pioneer Funds  Distributor,  Inc.
("PFD")  with  respect  to the  Pioneer  mutual  funds for  which PFD  serves as
principal underwriter ("the Funds").

This agreement incorporates and supplements that agreement.  In consideration of
your sales of shares of the Funds, for providing services to shareholders of the
Funds and of the Pioneer money market funds and assisting PFD and its affiliates
in providing such services, we are authorized to pay you certain service fees as
specified  herein.  Receipt  by you of any such  service  fees is subject to the
terms and  conditions  contained  in the Funds'  prospectuses  and/or  specified
below, as may be amended from time to time.

1. You agree to cooperate  as requested  with  programs  that the Funds,  PFD or
their affiliates provide to enhance shareholder service.

2. You agree to take an active role in providing  such  shareholder  services as
processing purchase and redemption transactions and, where applicable, exchanges
and  account  transfers;  establishing  and  maintaining  shareholder  accounts;
providing  certain  information  and  assistance  with  respect  to  the  Funds;
responding  to  shareholder  inquiries  or advising us of such  inquiries  where
appropriate.

3., You agree to assign an active registered  representative to each shareholder
account  on your  and our  records  and to  reassign  accounts  when  registered
representatives  leave your firm. You also agree, with respect to accounts which
are held in  nominee  or  "street"  name,  to  provide  such  documentation  and
verification  that active  representatives  are assigned to all such accounts as
PFD may require from time to time.

4. You agree to pay to the  registered  representatives  assigned to shareholder
accounts a share of any service fees paid to you pursuant to this agreement. You
also agree to instruct your  representatives  to regularly contact  shareholders
whose accounts are assigned to them.

5. You acknowledge that service fee payments are subject to terms and conditions
set forth  herein  and in the  Funds'  prospectuses,  Statements  of  Additional
Information and Plans of Distribution  and that this agreement may be terminated
by  either  party at any time by  written  notice  to the  other.  Any  order to
purchase or sell shares  received by PFD from you  subsequent to the date of our
notification  to you of an amendment of the Agreement shall be deemed to be your
acceptance of such an amendment.

6. You  acknowledge  that your  continued  participation  in this  agreement  is
subject to your providing a level of support to PFD's  marketing and shareholder
retention  efforts  that is  deemed  acceptable  by PFD.  Factors  which  may be
considered by PFD in this respect include,  but are not limited to, the level of
shareholder  redemptions,  the level of assistance in disseminating  shareholder
communications,  reasonable access to your offices and/or representatives by PFD
wholesalers  or  other  employees  and  whether  your  compensation   system  or
"preferential  list"  unduly  discriminates  against  the sale of  shares of the
Funds.

7. Service fees will  generally  be paid  quarterly,  at the rates and under the
conditions specified on schedule A hereto.

8. All communications to PFD should be sent to the above address.  Any notice to
you shall be duly given if mailed or telegraphed to the address specified by you
below.  This agreement,  in conjunction with the Sales Agreement,  describes the
complete  understanding of the parties.  This agreement shall be construed under
the laws of the Commonwealth of Massachusetts.

Accepted:                                 Execute this Agreement in duplicate 
                                            and return one of the duplicate
                                                    originals to us.
By:________________________________
                                          By: _________________________________
Title:_____________________________                William A. Misata
                                                   Vice President


                      RETAIN ONE COPY AND RETURN THE OTHER

<PAGE>

                    SUPPLEMENTAL SALES AND SERVICE AGREEMENT
                      WITH PIONEER FUNDS DISTRIBUTOR, INC.

                                   SCHEDULE A

         1.  Except  as  specified  in  Section  4  below,  service  fees on the
aggregate  net asset  value of each  account  assigned  to you in Pioneer  Fund,
Pioneer II, and Pioneer Three will be paid at the rate of:

               a.   0.15% annually on shares acquired prior to August 19, 1991.

               b.   0.25%  annually on shares  acquired  on or after  August 19,
                    1991.


         2.  Except  as  specified  in  Section  4  below,  service  fees on the
aggregate net asset value of each account assigned to you in:

Pioneer America Income Trust            Pioneer International  Growth  Fund
Pioneer  Bond  Fund                     Pioneer  Growth  Shares 
Pioneer   Intermediate-Free Fund        Pioneer Real Estate Shares
Pioneer Europe Fund                     Pioneer Income Fund Pioneer  
Capital Growth Fund                     Pioneer Tax-Free Income Fund 
Pioneer Equity-Income  Fund             Pioneer  Short-Term  Income Trust  
Pioneer  Gold Shares                    Pioneer  India Fund
Pioneer  Emerging  Markets  Fund        Pioneer  Small Company Fund*

will be paid at the rate of:

               a.   0.15% annually if the shares are acquired on or after August
                    19,  1991,  as a result of an exchange  from  Pioneer  Fund,
                    Pioneer II, or Pioneer Three of shares owned prior to August
                    19, 1991.

               b.   0.25% annually on all other shares.


         3. Except as specified in Section 4 below, service fees will be paid at
an  annual  rate of 0.15%  of the  aggregate  net  asset  value of each  account
assigned to you in:

                     Pioneer Cash Reserves Fund
                     Pioneer US. Government Money Fund
                     Pioneer Tax-Free Money Fund
                     Pioneer California Double Tax-Free Fund
                     Pioneer Massachusetts Double Tax-Free Fund
                     Pioneer New York Triple Tax-Free Fund



      4.  Exceptions -- Service fees will not be paid on accounts representing:

               a.   Purchases   by  you  or  your   affiliates,   employees   or
                    representatives.

               b    Shares which were  purchased at net asset value,  except for
                    sales of the  money  market  funds or sales on which you are
                    paid a  commission  and which are subject to the  contingent
                    deferred sales charge described in the funds' prospectuses.

               c.   "House"  accounts or any other  accounts  not assigned to an
                    active registered representative(s).

               d.   Accounts  established  in Pioneer Bond Fund prior to January
                    1, 1986.

               e.   Service fees of less than $50 per calendar  quarter will not
                    be paid.

               f.   Pioneer reserves the right to reduce the service fee paid on
                    individual accounts of more than $10 million.

               g.   First year services fees on shares  subject to a CDSC are at
                    the rate of 0.25%  and are  prepaid  as part of the  initial
                    sales commission.

         5. Service fees on shares sold with a front-end  sales charge  normally
begin  to be  earned  as  soon  as the  transaction  settles,  unless  specified
otherwise in the fund  prospectus.  Since the  commission  on shares sold with a
CDSC  includes a prepaid one year  service fee , periodic  service  fees on such
shares are paid beginning one year following the transaction.

                  * Service fees begin accruing January 1, 1996


                                AGREEMENT BETWEEN
                          BROWN BROTHERS HARRIMAN & CO.
                                       AND
                              PIONEER MID-CAP FUND


<PAGE>


                                TABLE OF CONTENTS


     1.   Employment of Custodian                                    1

     2.   Powers and Duties of the Custodian
          with respect to Property of the Fund
          held by the Custodian                                      1

             A.Safekeeping                                           2
             B.Manner of Holding Securities                          2
             C.Registered Name; Nominee                              2
             D.Purchases                                             2
             E.Exchanges                                             4
             F.Sales of Securities                                   4
             G.Depositary Receipts                                   5
             H.Exercise of Rights; Tender Offers                     6
             I.Stock Dividends, Rights, Etc.                         6
             J.Options                                               6
             K.Borrowings                                            7
             L.Demand Deposit Bank Accounts                          7
             M.Interest Bearing Call or Time Deposits                8
             N.Foreign Exchange Transactions
                    and Futures Contracts                            9
             O.Stock Loans                                          10
             P.Collections                                          10
             Q.Dividends, Distributions and Redemptions             11
             R.Proxies, Notices, Etc.                               12
             S.Nondiscretionary Details                             12
             T.Bills13
             U.Deposit of Fund Assets in Securities Systems         13
             V.Other Transfers                                      15
             W.Investment Limitations                               16
             X.Proper Instructions                                  16
             Y.Segregated Account                                   18


     3.   Powers and Duties of the Custodian with
          Respect to the Appointment of Subcustodians               19

     4.   Assistance by the Custodian as to Certain Matters         23

     5.   Powers and Duties of the Custodian with
          Respect to its Role as Financial Agent                    23

             A. Records                                             23
             B. Accounts                                            23
             C. Access to Records                                   24
             D. Disbursements                                       24

<PAGE>



     6.   Standard of Care and Related Matters                      24

             A.Liability of the Custodian with
                    Respect to Proper Instructions;
                    Evidence of Authority; Etc.                     24
             B.Liability of the Custodian with
                    Respect to Use of Securities System 25
             C.Liability of the Custodian with
                    respect to Subcustodians                        26
             D.Standard of Care; Liability;
                    Indemnification                                 27
             E.Reimbursement of Advances                            28
             F.Security for Obligations to Custodian                29
             G.Appointment of Agents                                29
             H.Powers of Attorney                                   30

     7.   Compensation of the Custodian                             30

     8.   Termination; Successor Custodian                          30

     9.   Amendment                                                 31

    10.   Governing Law                                             32

    11.   Notices                                                   32

    12.   Binding Effect                                            32

    13.   Counterparts                                              32



<PAGE>



                               CUSTODIAN AGREEMENT

         AGREEMENT made this 23rd day of December,  1991 between PIONEER MID-CAP
  FUND (the "Fund") and Brown Brothers Harriman & Co. (the "Custodian");
         
         WITNESSETH:   That  in   consideration  of  the  mutual  covenants  and
   agreements herein contained, the parties hereto agree as follows:
         
         1.  Employment of Custodian:  The Fund hereby  employs and appoints the
   Custodian as a custodian  for the term and subject to the  provisions of this
   Agreement. The Custodian shall not be under any duty or obligation to require
   the Fund to deliver to it any securities or funds owned by the Fund and shall
   have no  responsibility or liability for or on account of securities or funds
   not so  delivered.  The Fund will  deposit with the  Custodian  copies of the
   Declaration  of  Trust  or  Certificate  of  Incorporation  and  By-Laws  (or
   comparable  documents) of the Fund and all amendments thereto,  and copies of
   such  votes  and other  proceedings  of the Fund as may be  necessary  for or
   convenient to the Custodian in the  performance of its duties.  

         2. Powers and Duties of the  Custodian  with respect to Property of the
   Fund held by the  Custodian:  Except  for  securities  and funds  held by any
   Subcustodians  or  held  by  the  Custodian  through  a  non-U.S.  securities
   depository  appointed  pursuant to the  provisions  of Section 3 hereof,  the
   Custodian shall have and perform the following powers and duties:

<PAGE>

         A.  Safekeeping - To keep safely the securities and other assets of the
  Fund that have been  delivered  to the  Custodian  and, on behalf of the Fund,
  from time to time to receive delivery of securities for safekeeping.
         B. Manner of Holding Securities - To hold securities of the Fund (1) by
  physical   possession  of  the  share   certificates   or  other   instruments
  representing  such  securities  in  registered  or  bearer  form,  or  (2)  in
  book-entry  form by a  Securities  System  (as said term is defined in Section
  2U).
         C. Registered Name; Nominee - To hold registered securities of the Fund
  (1) in the name or any nominee name of the  Custodian  or the Fund,  or in the
  name or any nominee name of any Agent appointed pursuant to Section 6F, or (2)
  in street  certificate  form,  so-called,  and in any case with or without any
  indication  of fiduciary  capacity,  provided that  securities  are held in an
  account of the  Custodian  containing  only  assets of the Fund or only assets
  held as fiduciary or custodian for customers.
         D.  Purchases  - Upon  receipt  of Proper  Instructions,  as defined in
  Section X on Page 16,  insofar as funds are available for the purpose,  to pay
  for and receive  securities  purchased  for the  account of the Fund,  payment
  being made only upon receipt of the securities (1) by the Custodian, or (2) by
  a  clearing  corporation  of a  national  securities  exchange  of  which  the
  Custodian is a member, or (3) by a Securities System. However, (i) in the case
  of repurchase agreements entered into by the


                                      -2-
<PAGE>

         Fund,  the  Custodian  (as well as an  Agent)  may  release  funds to a
  Securities System or to a Subcustodian prior to the receipt of advice from the
  Securities  System  or  Subcustodian  that  the  securities   underlying  such
  repurchase  agreement have been transferred by book entry into the Account (as
  defined in Section 2U) of the Custodian (or such Agent)  maintained  with such
  Securities System or Subcustodian, so long as such payment instructions to the
  Securities System or Subcustodian  include a requirement that delivery is only
  against  payment  for  securities,  (ii)  in  the  case  of  foreign  exchange
  contracts,  options, time deposits, call account deposits,  currency deposits,
  and other deposits,  contracts or options  pursuant to Sections 2J, 2L, 2M and
  2N, the Custodian may make payment  therefor  without  receiving an instrument
  evidencing  said  deposit,   contract  or  option  so  long  as  such  payment
  instructions detail specific securities to be acquired,  and (iii) in the case
  of securities in which payment for the security and receipt of the  instrument
  evidencing  the security are under  generally  accepted  trade practice or the
  terms of the instrument  representing  the security  expected to take place in
  different  locations or through  separate  parties,  such as commercial  paper
  which is indexed to foreign currency  exchange rates,  derivatives and similar
  securities,  the  Custodian  may make  payment  for such  securities  prior to
  delivery thereof in accordance with such generally  accepted trade practice or
  the terms of the instrument representing such security.


                                      -3-
<PAGE>

         E.  Exchanges  - Upon  receipt  of  proper  instructions,  to  exchange
  securities  held by it for the  account  of the Fund for other  securities  in
  connection  with any  reorganization,  recapitalization,  split-up  of shares,
  change of par value,  conversion or other event  relating to the securities or
  the issuer of such securities and to deposit any such securities in accordance
  with the  terms of any  reorganization  or  protective  plan.  Without  proper
  instructions,  the Custodian may  surrender  securities in temporary  form for
  definitive  securities,  may surrender  securities for transfer into a name or
  nominee name as permitted in Section 2C, and may  surrender  securities  for a
  different  number of certificates or instruments  representing the same number
  of shares or same principal amount of indebtedness, provided the securities to
  be issued are to be delivered to the Custodian.
         F. Sales of Securities - Upon receipt of proper  instructions,  to make
  delivery of securities  which have been sold for the account of the Fund,  but
  only  against  payment  therefor  (1) in  cash,  by a  certified  check,  bank
  cashier's check, bank credit,  or bank wire transfer,  or (2) by credit to the
  account of the Custodian with a clearing  corporation of a national securities
  exchange of which the  Custodian is a member,  or (3) by credit to the account
  of the  Custodian  or an  Agent of the  Custodian  with a  Securities  System;
  provided,  however,  that (i) in the case of delivery of physical certificates
  or instruments


                                      -4-
<PAGE>

         representing securities,  the Custodian may make delivery to the broker
  buying the securities, against receipt therefor, for examination in accordance
  with "street  delivery"  custom,  provided that the payment  therefor is to be
  made to the Custodian  (which payment may be made by a broker's check) or that
  such  securities are to be returned to the Custodian,  and (ii) in the case of
  securities referred to in clause (iii) of the last sentence of Section 2D, the
  Custodian may make settlement,  including with respect to the form of payment,
  in  accordance  with  generally  accepted  trade  practice  relating  to  such
  securities or the terms of the instrument representing said security.
         G.  Depositary  Receipts  - Upon  receipt  of proper  instructions,  to
  instruct a Subcustodian or an Agent to surrender  securities to the depositary
  used by an issuer of American Depositary Receipts or International  Depositary
  Receipts (hereinafter  collectively referred to as "ADRs") for such securities
  against a written receipt therefor  adequately  describing such securities and
  written evidence satisfactory to the Subcustodian or Agent that the depositary
  has  acknowledged  receipt  of  instructions  to issue  with  respect  to such
  securities  ADRs in the name of the Custodian,  or a nominee of the Custodian,
  for delivery to the Custodian in Boston, Massachusetts, or at such other place
  as the Custodian may from time to time designate.
         Upon receipt of proper instructions, to surrender ADRs to


                                      -5-
<PAGE>

         the  issuer  thereof  against a  written  receipt  therefor  adequately
  describing  the ADRs  surrendered  and written  evidence  satisfactory  to the
  Custodian that the issuer of the ADRs has acknowledged receipt of instructions
  to cause its  depositary to deliver the securities  underlying  such ADRs to a
  Subcustodian or an Agent.
         H. Exercise of Rights;  Tender  Offers - Upon timely  receipt of proper
  instructions,  to deliver to the issuer or trustee thereof, or to the agent of
  either, warrants, puts, calls, rights or similar securities for the purpose of
  being  exercised or sold,  provided that the new  securities and cash, if any,
  acquired  by such  action are to be  delivered  to the  Custodian,  and,  upon
  receipt of proper  instructions,  to deposit  securities upon  invitations for
  tenders  of  securities,  provided  that  the  consideration  is to be paid or
  delivered or the tendered securities are to be returned to the Custodian.
         I. Stock  Dividends,  Rights,  Etc. - To receive  and collect all stock
   dividends,  rights and other items of like nature;  and to deal with the same
   pursuant to proper instructions relative thereto.
         J. Options - Upon receipt of proper instructions, to receive and retain
  confirmations  or other  documents  evidencing  the  purchase of writing of an
  option on a security or securities  index by the Fund; to deposit and maintain
  in a segregated  account,  either  physically or by book-entry in a Securities
  System, securities subject to a covered call option written by


                                      -6-
<PAGE>

   the Fund; and to release and/or transfer such securities or other assets only
   in  accordance  with the  provisions  of any  agreement  among the Fund,  the
   Custodian and a  broker-dealer  relating to such securities or other assets a
   notice or other  communication  evidencing  the  expiration,  termination  or
   exercise  of  such  covered   option   furnished  by  The  Options   Clearing
   Corporation,  the securities or options exchange on which such covered option
   is traded or such other  organization as may be responsible for handling such
   options transactions.
         K.  Borrowings  - Upon  receipt  of  proper  instructions,  to  deliver
   securities  of the  Fund  to  lenders  or  their  agents  as  collateral  for
   borrowings effected by the Fund, provided that such borrowed money is payable
   to or upon the Custodian's order as Custodian for the Fund.
         L.  Demand  Deposit  Bank  Accounts - To open and operate an account or
   accounts in the name of the Fund on the  Custodian's  books  subject  only to
   draft or order by the Custodian.  All funds received by the Custodian from or
   for the  account  of the Fund  shall be  deposited  in said  account(s).  The
   responsibilities  of the  Custodian to the Fund for deposits  accepted on the
   Custodian's books shall be that of a U. S. bank for a similar deposit. If and
   when authorized by proper instructions, the Custodian may open and operate an
   additional  account(s)  in such  other  banks  or trust  companies  as may be
   designated by the Fund in such


                                      -7-
<PAGE>

         instructions  (any such bank or trust company so designated by the Fund
  being  referred to hereafter as a "Banking  Institution"),  provided that such
  account(s)  (hereinafter  collectively  referred  to as "demand  deposit  bank
  accounts")  shall be in the name of the  Custodian for account of the Fund and
  subject only to the Custodian's  draft or order.  Such demand deposit accounts
  may be opened  with  Banking  Institutions  in the United  States and in other
  countries and may be denominated  in either U. S. Dollars or other  currencies
  as the Fund may  determine.  All such deposits shall be deemed to be portfolio
  securities of the Fund and  accordingly  the  responsibility  of the Custodian
  therefore   shall  be  the  same  as  and  no  greater  than  the  Custodian's
  responsibility in respect of other portfolio securities of the Fund.
         M. Interest  Bearing Call or Time Deposits - To place interest  bearing
  fixed term and call  deposits  with such banks and in such amounts as the Fund
  may  authorize  pursuant to proper  instructions.  Such deposits may be placed
  with the Custodian or with Subcustodians or other Banking  Institutions as the
  Fund may  determine.  Deposits  may be  denominated  in U. S. Dollars or other
  currencies  and  need  not be  evidenced  by the  issuance  or  delivery  of a
  certificate to the Custodian, provided that the Custodian shall include in its
  records with respect to the assets of the Fund appropriate  notation as to the
  amount and currency of each such deposit,  the accepting  Banking  Institution
  and other appropriate details, and shall retain such forms of advice or


                                      -8-
<PAGE>

         receipt  evidencing  the  deposit,  if any, as may be  forwarded to the
  Custodian by the Banking Institution.  Such deposits,  other than those placed
  with the Custodian,  shall be deemed portfolio  securities of the Fund and the
  responsibilities  of the  Custodian  therefor  shall be the same as those  for
  demand deposit bank accounts  placed with other banks, as described in Section
  K of this  Agreement.  The  responsibility  of the Custodian for such deposits
  accepted on the Custodian's  books shall be that of a U. S. bank for a similar
  deposit.
         N. Foreign Exchange  Transactions  and Futures  Contracts - Pursuant to
  proper  instructions,  to enter into foreign exchange  contracts or options to
  purchase and sell foreign  currencies  for spot and future  delivery on behalf
  and for the account of the Fund.  Such  transactions  may be undertaken by the
  Custodian  with  such  Banking  Institutions,   including  the  Custodian  and
  Subcustodian(s) as principals, as approved and authorized by the Fund. Foreign
  exchange  contracts and options other than those  executed with the Custodian,
  shall  be   deemed   to  be   portfolio   securities   of  the  Fund  and  the
  responsibilities  of the  Custodian  therefor  shall be the same as those  for
  demand  deposit bank accounts  placed with other banks as described in Section
  2L of this  agreement.  Upon  receipt of proper  instructions,  to receive and
  retain confirmations  evidencing the purchase or sale of a futures contract or
  an option on a futures  contract  by the Fund;  to deposit  and  maintain in a
  segregated account, for the benefit


                                      -9-
<PAGE>

         of any futures commission merchant or to pay to such futures commission
  merchant,  assets designated by the fund as initial,  maintenance or variation
  "margin" deposits intended to secure the Fund's performance of its obligations
  under any  futures  contracts  purchased  or sold or any  options  on  futures
  contracts  written  by the Fund,  in  accordance  with the  provisions  of any
  agreement or agreements  among any of the Fund, the Custodian and such futures
  commission  merchant,  designated  to comply  with the rules of the  Commodity
  Futures  Trading  Commission  and/or  any  contract  market,  or  any  similar
  organization or organizations,  regarding such margin deposits; and to release
  and/or  transfer  assets in such margin  accounts only in accordance  with any
  such agreements or rules.
         O.  Stock  Loans - Upon  receipt  of proper  instructions,  to  deliver
  securities of the Fund, in connection with loans of securities by the Fund, to
  the  borrower  thereof  prior to receipt of the  collateral,  if any, for such
  borrowing,  provided  that for stock  loans  secured  by cash  collateral  the
  Custodian's  instructions to the Securities System require that the Securities
  System may deliver the securities to the borrower thereof only upon receipt of
  the collateral for such borrowing.
         P.  Collections  - To collect,  receive and deposit in said  account or
   accounts all income, payments of principal and other payments with respect to
   the securities  held  hereunder,  and in connection  therewith to deliver the
   certificates or other


                                      -10-
<PAGE>

         instruments  representing  the  securities to the issuer thereof or its
  agent when  securities  are  called,  redeemed,  retired or  otherwise  become
  payable;  provided, that the payment is to be made in such form and manner and
  at such time,  which may be after  delivery by the Custodian of the instrument
  representing  the  security,  as  is in  accordance  with  the  terms  of  the
  instrument  representing  the  security,  or such proper  instructions  as the
  Custodian may receive,  or governmental  regulations,  the rules of Securities
  Systems or other U.S.  securities  depositories and clearing agencies or, with
  respect to  securities  referred  to in clause  (iii) of the last  sentence of
  Section 2D, in accordance  with  generally  accepted trade  practice;  (ii) to
  execute  ownership and other  certificates  and affidavits for all federal and
  state tax purposes in connection with receipt of income or other payments with
  respect  to  securities  of  the  Fund  or  in  connection  with  transfer  of
  securities,  and (iii)  pursuant  to proper  instructions  to take such  other
  actions  with  respect  to  collection  or  receipt  of funds or  transfer  of
  securities which involve an investment decision.
         Q.  Dividends,  Distributions  and Redemptions - Upon receipt of proper
  instructions  from the Fund, or upon receipt of  instructions  from the Fund's
  shareholder  servicing agent or agent with comparable duties (the "Shareholder
  Servicing  Agent")  (given by such  person or  persons  and in such  manner on
  behalf of the Shareholder Servicing Agent as the Fund shall have authorized),


                                      -11-
<PAGE>

         the Custodian  shall  release  funds or  securities to the  Shareholder
  Servicing Agent or otherwise apply funds or securities,  insofar as available,
  for the payment of dividends or other distributions to Fund shareholders. Upon
  receipt of proper  instructions from the Fund, or upon receipt of instructions
  from the  Shareholder  Servicing Agent (given by such person or persons and in
  such  manner on behalf of the  Shareholder  Servicing  Agent as the Fund shall
  have authorized), the Custodian shall release funds or securities,  insofar as
  available, to the Shareholder Servicing Agent or as such Agent shall otherwise
  instruct for payment to Fund  shareholders  who have delivered to such Agent a
  request for  repurchase  or redemption of their shares of capital stock of the
  Fund.
         R. Proxies, Notices, Etc. - Promptly to deliver or mail to the Fund all
  forms of  proxies  and all  notices  of  meetings  and any  other  notices  or
  announcements  affecting or relating to securities  owned by the Fund that are
  received by the Custodian, and upon receipt of proper instructions, to execute
  and deliver or cause its nominee to execute and deliver  such proxies or other
  authorizations as may be required. Neither the Custodian nor its nominee shall
  vote upon any of such  securities or execute any proxy to vote thereon or give
  any consent or take any other action with respect thereto (except as otherwise
  herein provided) unless ordered to do so by proper instructions.
         S.      Nondiscretionary Details - Without the necessity of


                                      -12-
<PAGE>

         express   authorization   from  the   Fund,   (1)  to   attend  to  all
  nondiscretionary details in connection with the sale, exchange,  substitution,
  purchase, transfer or other dealings with securities,  funds or other property
  of the Portfolio held by the Custodian except as otherwise  directed from time
  to time by the Directors or Trustees of the Fund,  and (2) to make payments to
  itself or others for minor  expenses of handling  securities  or other similar
  items relating to the Custodian's  duties under this Agreement,  provided that
  all such payments shall be accounted for to the Fund.
         T. Bills - Upon receipt of proper  instructions,  to pay or cause to be
   paid, insofar as funds are available for the purpose, bills,  statements,  or
   other obligations of the Fund.
         U. Deposit of Fund Assets in  Securities  Systems - The  Custodian  may
  deposit  and/or  maintain  securities  owned by the Fund in (i) The Depository
  Trust Company, (ii) any book-entry system as provided in Subpart O of Treasury
  Circular No. 300, 31 CFR 306,  Subpart B of 31 CFR Part 350, or the book-entry
  regulations  of federal  agencies  substantially  in the form of Subpart O, or
  (iii) any other domestic  clearing  agency  registered with the Securities and
  Exchange  Commission under Section 17A of the Securities  Exchange Act of 1934
  which acts as a securities  depository  and whose use the Fund has  previously
  approved in writing (each of the foregoing being referred to in this Agreement
  as a "Securities System"). Utilization of a Securities


                                      -13-
<PAGE>

         System shall be in accordance with applicable Federal Reserve Board and
  Securities and Exchange Commission rules and regulations,  if any, and subject
  to the following provisions:
         1) The Custodian may deposit and/or  maintain Fund  securities,  either
  directly or through one or more Agents  appointed by the  Custodian  (provided
  that any such  agent  shall be  qualified  to act as a  custodian  of the Fund
  pursuant to the Investment  Company Act of 1940 and the rules and  regulations
  thereunder),  in  a  Securities  System  provided  that  such  securities  are
  represented  in an account  ("Account")  of the Custodian or such Agent in the
  Securities System which shall not include any assets of the Custodian or Agent
  other than assets held as a fiduciary, custodian or otherwise for customers;
         2) The records of the Custodian  with respect to securities of the Fund
   which are  maintained  in a Securities  System shall  identify by  book-entry
   those securities belonging to the Fund;
         3) The Custodian shall pay for securities  purchased for the account of
  the Fund upon (i)  receipt  of advice  from the  Securities  System  that such
  securities  have been  transferred  to the Account,  and (ii) the making of an
  entry on the records of the Custodian to reflect such payment and transfer for
  the account of the Fund. The Custodian shall transfer  securities sold for the
  account of the Fund upon (i) receipt of advice from the Securities System that
  payment for such securities has been transferred to the Account,  and (ii) the
  making of an entry on


                                      -14-
<PAGE>

         the records of the  Custodian to reflect such  transfer and payment for
  the account of the Fund.  Copies of all advices from the Securities  System of
  transfers of securities  for the account of the Fund shall  identify the Fund,
  be maintained  for the Fund by the Custodian or an Agent as referred to above,
  and be provided to the Fund at its request.  The  Custodian  shall furnish the
  Fund  confirmation  of each transfer to or from the account of the Fund in the
  form of a written  advice or notice and shall  furnish  to the Fund  copies of
  daily transaction  sheets reflecting each day's transactions in the Securities
  System for the account of the Fund on the next business day;
         4) The Custodian shall provide the Fund with any report obtained by the
  Custodian  or any  Agent  as  referred  to above  on the  Securities  System's
  accounting system, internal accounting control and procedures for safeguarding
  securities  deposited in the  Securities  System;  and the  Custodian and such
  Agents  shall send to the Fund such  reports on their own  systems of internal
  accounting control as the Fund may reasonably request from time to time.

         5) At the written request of the Fund, the Custodian will terminate the
   use of any such  Securities  System  on  behalf  of the Fund as  promptly  as
   practicable.

         V. Other  Transfers - Upon receipt of proper  instructions,  to deliver
   securities, funds and other property of the Fund to a Subcustodian or another
   custodian of the Fund; and, upon receipt


                                      -15-
<PAGE>

         of proper  instructions,  to make such other disposition of securities,
  funds or other  property  of the Fund in a manner  other than or for  purposes
  other  than as  enumerated  elsewhere  in this  Agreement,  provided  that the
  instructions  relating to such  disposition  shall  include a statement of the
  purpose for which the delivery is to be made,  the amount of  securities to be
  delivered  and the name of the  person or persons  to whom  delivery  is to be
  made.
         W.  Investment  Limitations - In performing its duties  generally,  and
  more  particularly  in  connection  with the  purchase,  sale and  exchange of
  securities  made by or for the Fund, the Custodian may assume unless and until
  notified in writing to the contrary  that proper  instructions  received by it
  are not in  conflict  with or in any way  contrary  to any  provisions  of the
  Fund's  Declaration of Trust or Certificate  of  Incorporation  or By-Laws (or
  comparable documents) or votes or proceedings of the shareholders or Directors
  of the Fund.  The Custodian  shall in no event be liable to the Fund and shall
  be  indemnified  by the Fund for any  violation  which occurs in the course of
  carrying out instructions  given by the Fund of any investment  limitations to
  which the Fund is  subject  or other  limitations  with  respect to the Fund's
  powers to make  expenditures,  encumber  securities,  borrow  or take  similar
  actions affecting the Fund.

         X. Proper  Instructions - Proper instructions shall mean a tested telex
   from the Fund or a written request, direction,


                                      -16-
<PAGE>

         instruction or certification signed or initialled on behalf of the Fund
  by one or more person or persons as the Board of  Directors or Trustees of the
  Fund shall have from time to time authorized,  provided, however, that no such
  instructions  directing  the delivery of securities or the payment of funds to
  an  authorized  signatory  of the Fund shall be signed by such  person.  Those
  persons authorized to give proper  instructions may be identified by the Board
  of Directors or Trustees by name,  title or position and will include at least
  one  officer  empowered  by the  Board  to  name  other  individuals  who  are
  authorized to give proper  instructions  on behalf of the Fund.  Telephonic or
  other  oral  instructions  given  by any  one of the  above  persons  will  be
  considered proper  instructions if the Custodian  reasonably  believes them to
  have been given by a person  authorized to give such instructions with respect
  to the transaction  involved.  Oral  instructions  will be confirmed by tested
  telex  or in  writing  in the  manner  set  forth  above  but the lack of such
  confirmation  shall in no way  affect  any action  taken by the  Custodian  in
  reliance upon such oral  instructions.  The Fund  authorizes  the Custodian to
  tape record any and all  telephonic  or other oral  instructions  given to the
  Custodian  by or on  behalf  of the  Fund  (including  any  of  its  officers,
  Directors,  Trustees, employees or agents) and will deliver to the Custodian a
  similar  authorization  from any  investment  manager  or adviser or person or
  entity with similar reponsibilities which is authorized to give proper


                                      -17-
<PAGE>

         instructions   on  behalf  of  the  Fund  to  the   Custodian.   Proper
  instructions  may relate to  specific  transactions  or to types or classes of
  transactions, and may be in the form of standing instructions.
         Proper  instructions  may  include  communications   effected  directly
  between  electro-mechanical  or electronic devices or systems,  in addition to
  tested telex,  provided  that the Fund and the  Custodian  agree to the use of
  such device or system.
         Y.  Segregated  Account - The  Custodian  shall upon  receipt of proper
  instructions  establish  and  maintain  on its books a  segregated  account or
  accounts for and on behalf of the Fund,  into which account or accounts may be
  transferred  cash  and/or  securities  of  the  Fund,   including   securities
  maintained by the Custodian  pursuant to Section 2U hereof,  (i) in accordance
  with the  provisions  of any  agreement  among the Fund,  the  Custodian and a
  broker-dealer  registered  under  the  Securities  Exchange  Act of 1934 and a
  member of the National Association of Securities Dealers, Inc. (or any futures
  commission  merchant  registered under the Commodity Exchange Act) relating to
  compliance  with the  rules of the  Options  Clearing  Corporation  and of any
  registered  national  securities  exchange (or the Commodity  Futures  Trading
  Commission or any registered contract market), or any similar  organization or
  organizations,  regarding  escrow or other  arrangements  in  connection  with
  transactions by the Fund, (ii) for purposes of segregating  cash or securities
  in connection with


                                      -18-
<PAGE>

         options  purchased  sold or  written by the Fund or  commodity  futures
  contracts  or options  thereon  purchased  or sold by the Fund,  (iii) for the
  purposes of compliance by the Fund with the procedures  required by Investment
  Company Act Release No. 10666,  or any  subsequent  release or releases of the
  Securities and Exchange  Commission  relating to the maintenance of segregated
  accounts by registered investment companies,  and (iv) as mutually agreed from
  time to time between the Fund and the Custodian.
         3. Powers and Duties of the Custodian  with Respect to the  Appointment
  of  Subcustodians:  The Fund hereby  authorizes and instructs the Custodian to
  hold  securities,  funds and other  property of the Fund which are  maintained
  outside  the  United  States  at  subcustodians   appointed  pursuant  to  the
  provisions  of this Section 3 (a  "Subcustodian").  The Fund shall  approve in
  writing  (1)  the  appointment  of  each  Subcustodian  and  the  subcustodian
  agreement to be entered into between such Subcustodian and the Custodian,  and
  (2) if the  Subcustodian  is organized  under the laws of a country other than
  the United  States,  the country or  countries  in which the  Subcustodian  is
  authorized to hold  securities,  cash and other property of the Fund. The Fund
  hereby further  authorizes and instructs the Custodian and any Subcustodian to
  utilize such securities  depositories  located outside the United States which
  are  approved  in  writing  by the Fund to hold  securities  cash,  and  other
  property of the Fund. Upon such approval by the Fund, the


                                      -19-
<PAGE>

         Custodian  is   authorized  on  behalf  of  the  Fund  to  notify  each
  Subcustodian of its appointment as such. The Custodian may, at any time in its
  discretion,  remove any Subcustodian  that has been appointed as such but will
  promptly notify the Fund of any such action.
         Those  Subcustodians,  and  the  countries  where  and  the  securities
  depositories through which they or the Custodian may hold securities, cash and
  other  property of the Fund which the Fund has  approved to date are set forth
  on  Appendix A hereto.  Such  Appendix  shall be amended  from time to time as
  Subcustodians,  and/or countries and/or  securities  depositories are changed,
  added or deleted.  The Fund shall be  responsible  for informing the Custodian
  sufficiently  in  advance of a  proposed  investment  which is to be held in a
  country not listed on Appendix A, in order that there shall be sufficient time
  for the Fund to give the approval required by the preceding  paragraph and for
  the  Custodian  to  put  the  appropriate  arrangements  in  place  with  such
  Subcustodian, including negotiation of a subcustodian agreement and submission
  of such subcustodian agreement to the Fund for approval.
         If the Fund shall have  invested  in a security to be held in a country
  before the foregoing  procedures have been  completed,  such security shall be
  held by such agent as the Custodian may appoint.  In any event,  the Custodian
  shall be liable to the Fund for the  actions  of such agent if and only to the
  extent the


                                      -20-
<PAGE>

         Custodian  shall have  recovered from such agent for any damages caused
  the Fund by such agent. At the request of the Fund, Custodian agrees to remove
  any securities held on behalf of the Fund by such agent,  if practical,  to an
  approved Subcustodian.  Under such circumstances Custodian will collect income
  and respond to corporate actions on a best efforts basis.
         With respect to  securities  and funds held by a  Subcustodian,  either
  directly or  indirectly  (including  by a  securities  depository  or clearing
  agency),  notwithstanding  any  provision of this  Agreement to the  contrary,
  payment for securities  purchased and delivery of securities  sold may be made
  prior to receipt of the securities or payment, respectively, and securities or
  payment  may  be  received  in  a  form,  in  accordance   with   governmental
  regulations,  rules of  securities  depositories  and  clearing  agencies,  or
  generally accepted trade practice in the applicable local market.
         In the event that any Subcustodian appointed pursuant to the provisions
  of this Section 3 fails to perform any of its obligations  under the terms and
  conditions of the applicable subcustodian  agreement,  the Custodian shall use
  its best efforts to cause such  Subcustodian to perform such  obligations.  In
  the event that the Custodian is unable to cause such  Subcustodian  to perform
  fully its  obligations  thereunder,  the Custodian  shall  forthwith  upon the
  Fund's request  terminate such Subcustodian in accordance with the termination
  provisions under the applicable


                                      -21-
<PAGE>

         subcustodian agreement and, if necessary or desirable,  appoint another
  subcustodian  in  accordance  with the  provisions  of this  Section 3. At the
  election  of the Fund,  it shall  have the  right to  enforce,  to the  extent
  permitted by the  subcustodian  agreement and applicable  law, the Custodian's
  rights  against any such  Subcustodian  for loss or damage  caused the Fund by
  such Subcustodian.
         The  Custodian  will not amend any  subcustodian  agreement or agree to
  change or permit any changes thereunder except upon the prior written approval
  of the Fund.
         The Custodian may, at any time in its discretion  upon  notification to
  the  Fund,  terminate  any  Subcustodian  of the Fund in  accordance  with the
  termination provisions under the applicable Subcustodian Agreement, and at the
  written request of the Fund, the Custodian will terminate any  Subcustodian in
  accordance with the termination  provisions under the applicable  Subcustodian
  Agreement.
         If  necessary  or  desirable,   the   Custodian  may  appoint   another
  subcustodian  to replace a Subcustodian  terminated  pursuant to the foregoing
  provisions of this Section 3, such appointment to be made upon approval of the
  successor  subcustodian  by the  Fund's  Board of  Directors  or  Trustees  in
  accordance with the provisions of this Section 3.
         In the event the Custodian  receives a claim from a Subcustodian  under
   the indemnification provisions of any


                                      -22-
<PAGE>

         subcustodian agreement the Custodian shall promptly give written notice
  to the Fund of such claim.  No more than thirty days after  written  notice to
  the Fund of the  Custodian's  intention  to make such  payment,  the Fund will
  reimburse the  Custodian  the amount of such payment  except in respect of any
  negligence or misconduct of the Custodian.
         4. Assistance by the Custodian as to Certain Matters: The Custodian may
  assist  generally  in the  preparation  of  reports to Fund  shareholders  and
  others, audits of accounts, and other ministerial matters of like nature.
         5.  Powers  and  Duties of the  Custodian  with  Respect to its Role as
  Financial  Agent:  The Fund hereby also  appoints  the  Custodian as the Funds
  financial  agent.  With respect to the  appointment  as financial  agent,  the
  Custodian shall have and perform the following powers and duties:
         A. Records - To create,  maintain  and retain such records  relating to
  its activities and obligations  under this Agreement as are required under the
  Investment  Company  Act of 1940  and the  rules  and  regulations  thereunder
  (including  Section 31 thereof and Rules 31a-1 and 31a-2 thereunder) and under
  applicable  Federal and State tax laws.  All such records will be the property
  of the  Fund  and in the  event  of  termination  of this  Agreement  shall be
  delivered to the successor custodian.
         B. Accounts - To keep books of account and render statements, including
   interim monthly and complete quarterly


                                      -23-
<PAGE>

         financial  statements,   or  copies  thereof,  from  time  to  time  as
   reasonably requested by proper instructions.
         C.  Access  to  Records  - The  books  and  records  maintained  by the
   Custodian  pursuant  to  Sections  5A and 5B shall at all  times  during  the
   Custodian's  regular  business  hours  be open to  inspection  and  audit  by
   officers of, attorneys for and auditors employed by the Fund and by employees
   and agents of the Securities and Exchange Commission,  provided that all such
   individuals  shall  observe  all  security   requirements  of  the  Custodian
   applicable to its own employees  having access to similar  records within the
   Custodian and such regulations as may be reasonably imposed by the Custodian.
   D. Disbursements - Upon receipt of proper instructions, to pay or cause to be
   paid, insofar as funds are available for the purpose,  bills,  statements and
   other obligations of the Fund (including but not limited to interest charges,
   taxes,  management  fees,  compensation  to Fund officers and employees,  and
   other  operating  expenses  of the Fund).  6.  Standard  of Care and  Related
   Matters:  A. Liability of the Custodian with Respect to Proper  Instructions;
   Evidence of Authority,  Etc. The Custodian shall not be liable for any action
   taken or omitted in reliance  upon proper  instructions  believed by it to be
   genuine or upon any other written notice,  request,  direction,  instruction,
   certificate  or other  instrument  believed by it to be genuine and signed by
   the proper party or parties.


                                      -24-
<PAGE>

         The  Secretary or Assistant  Secretary of the Fund shall certify to the
  Custodian  the  names,  signatures  and  scope  of  authority  of all  persons
  authorized  to give proper  instructions  or any other such  notice,  request,
  direction,  instruction,  certificate or instrument on behalf of the Fund, the
  names and  signatures of the officers of the Fund, the name and address of the
  Shareholder  Servicing  Agent,  and any  resolutions,  votes,  instructions or
  directions of the Fund's Board of Directors or Trustees or shareholders.  Such
  certificate  may be accepted and relied upon by the  Custodian  as  conclusive
  evidence of the facts set forth  therein and may be  considered  in full force
  and effect until receipt of a similar certificate to the contrary.
         So long as and to the extent that it is in the  exercise of  reasonable
  care,  the  Custodian  shall not be  responsible  for the title,  validity  or
  genuineness  of any  property or evidence of title  thereto  received by it or
  delivered by it pursuant to this Agreement.
         The Custodian shall be entitled, at the expense of the Fund, to receive
  and act upon advice of (i) counsel  regularly  retained  by the  Custodian  in
  respect of custodian  matters,  (ii) counsel for the Fund, or (iii) such other
  counsel as the Fund and the  Custodian  may agree  upon,  with  respect to all
  matters,  and  the  Custodian  shall  be  without  liability  for  any  action
  reasonably taken or omitted pursuant to such advice.
         B.      Liability of the Custodian with Respect to Use of


                                      -25-
<PAGE>

         Securities System - With respect to the portfolio securities,  cash and
  other property of the Fund held by a Securities System, the Custodian shall be
  liable to the Fund only for any loss or damage to the Fund  resulting from use
  of  the  Securities  System  if  caused  by  any  negligence,  misfeasance  or
  misconduct  of the  Custodian  or any of its  agents or of any of its or their
  employees  or from any failure of the  Custodian  or any such agent to enforce
  effectively such rights as it may have against the Securities  System.  At the
  election of the Fund,  it shall be entitled to be  subrogated to the rights of
  the Custodian with respect to any claim against the  Securities  System or any
  other person which the Custodian may have as a consequence of any such loss or
  damage to the Fund if and to the extent  that the Fund has not been made whole
  for any such loss or damage.
         C.  Liability  of the  Custodian  with  respect  to  Subcustodians  The
  Custodian  shall be  liable  to the Fund  for any loss or  damage  to the Fund
  caused by or resulting from the acts or omissions of any  Subcustodian  to the
  extent that under the terms set forth in the  subcustodian  agreement  between
  the Custodian and the Subcustodian (or in the subcustodian agreement between a
  Subcustodian and any secondary  Subcustodian),  the Subcustodian (or secondary
  Subcustodian) has failed to perform in accordance with the standard of conduct
  imposed under such subcustodian agreement as determined in accordance with the
  law which is adjudicated to govern such agreement and in accordance with any


                                      -26-
<PAGE>

         determination  of any  court  as to the  duties  of  said  Subcustodian
  pursuant to said agreement. The Custodian shall also be liable to the Fund for
  its own negligence in transmitting  any  instructions  received by it from the
  Fund  and for its own  negligence  in  connection  with  the  delivery  of any
  securities or funds held by it to any Subcustodian.
         D. Standard of Care;  Liability;  Indemnification - The Custodian shall
  be held only to the exercise of reasonable  care and diligence in carrying out
  the  provisions  of this  Agreement,  provided  that the  Custodian  shall not
  thereby  be  required  to take any  action  which is in  contravention  of any
  applicable  law. The Fund agrees to indemnify  and hold harmless the Custodian
  and its nominees  from all claims and  liabilities  (including  counsel  fees)
  incurred  or  assessed  against  it or its  nominees  in  connection  with the
  performance  of this  Agreement,  except  such as may  arise  from  its or its
  nominee's  breach  of the  relevant  standard  of  conduct  set  forth in this
  Agreement.  Without limiting the foregoing  indemnification  obligation of the
  Fund, the Fund agrees to indemnify the Custodian and any nominee in whose name
  portfolio  securities or other property of the Fund is registered  against any
  liability the Custodian or such nominee may incur by reason of taxes  assessed
  to the Custodian or such nominee or other costs, liability or expense incurred
  by the Custodian or such nominee  resulting  directly or  indirectly  from the
  fact that portfolio  securities or other property of the Fund is registered in
  the name of the Custodian or such nominee.


                                      -27-
<PAGE>

         It is also  understood  that the Custodian  shall not be liable for any
  loss involving any securities,  currencies,  deposits or other property of the
  Fund, whether maintained by it, a Subcustodian,  a securities  depository,  an
  agent of the Custodian or a Subcustodian,  a Securities  System,  or a Banking
  Institution,  or for any loss arising from a foreign  currency  transaction or
  contract,  where the loss  results  from a Sovereign  Risk or where the entity
  maintaining  such  securities,  currencies,  deposits or other property of the
  Fund, whether the Custodian, a Subcustodian, a securities depository, an agent
  of  the  Custodian  or a  Subcustodian,  a  Securities  System  or  a  Banking
  Institution,  has exercised  reasonable care  maintaining  such property or in
  connection with the transaction  involving such property.  A "Sovereign  Risk"
  shall   mean   nationalization,   expropriation,   devaluation,   revaluation,
  confiscation,  seizure,  cancellation,  destruction  or similar  action by any
  governmental  authority,  de  facto or de jure;  or  enactment,  promulgation,
  imposition  or  enforcement  by any such  governmental  authority  of currency
  restrictions,  exchange controls, taxes, levies or other charges affecting the
  Fund's property; or acts of war, terrorism, insurrection or revolution; or any
  other act or event beyond the Custodian's control.

         E.  Reimbursement  of  Advances - The  Custodian  shall be  entitled to
   receive  reimbursement  from the Fund on demand,  in the manner  provided  in
   Section 7, for its cash disbursements,



                                      -28-
<PAGE>

         expenses  and  charges   (including   the  fees  and  expenses  of  any
  Subcustodian or any Agent) in connection  with this  Agreement,  but excluding
  salaries and usual overhead expenses.
         F.  Security for  Obligations  to Custodian - If the Fund shall require
  the Custodian to advance cash or securities for any purpose for the benefit of
  the Fund,  including in connection with foreign exchange  contracts or options
  (collectively, an "Advance"), or if the Custodian or any nominee thereof shall
  incur or be assessed  any taxes,  charges,  expenses,  assessments,  claims or
  liabilities in connection with the performance of this Agreement (collectively
  a "Liability"),  except such as may arise from its or such nominee's breach of
  the  relevant  standard of conduct set forth in this  Agreement,  then in such
  event  any  property  at any  time  held  for the  account  of the Fund by the
  Custodian  or a  Subcustodian  shall be security for such Advance or Liability
  and if the Fund shall fail to repay or indemnify the Custodian  promptly,  the
  Custodian  shall be entitled to utilize  available  cash and to dispose of the
  Fund's  property,  including  securities,  to the extent  necessary  to obtain
  reimbursement or indemnification.
         G.  Appointment  of Agents - The  Custodian may at any time or times in
  its  discretion  appoint  (and may at any time remove) any other bank or trust
  company as its agent (an "Agent") to carry out such of the  provisions of this
  Agreement as the  Custodian may from time to time direct,  provided,  however,
  that the appointment


                                      -29-
<PAGE>

         of such Agent  (other  than an Agent  appointed  pursuant  to the third
   paragraph  of  Section  3) shall  not  relieve  the  Custodian  of any of its
   responsibilities under this agreement.

         H. Powers of  Attorney - Upon  request,  the Fund shall  deliver to the
  Custodian  such  proxies,  powers of attorney or other  instruments  as may be
  reasonable  and necessary or desirable in connection  with the  performance by
  the Custodian or any Subcustodian of their respective  obligations  under this
  Agreement or any applicable subcustodian agreement.
         7.  Compensation  of the Custodian:  The Fund shall pay the Custodian a
  custody fee based on such fee schedule as may from time to time be agreed upon
  in writing by the Custodian and the Fund. Such fee,  together with all amounts
  for which the Custodian is to be  reimbursed  in  accordance  with Section 6D,
  shall be billed to the Fund in such a manner as to permit  payment by a direct
  cash payment to the Custodian.
         8. Termination;  Successor Custodian:  This Agreement shall continue in
  full force and effect until  terminated  by either party by an  instrument  in
  writing  delivered  or  mailed,  postage  prepaid,  to the other  party,  such
  termination  to take effect not sooner than  seventy  five (75) days after the
  date of such delivery or mailing.  In the event of  termination  the Custodian
  shall be entitled to receive  prior to delivery of the  securities,  funds and
  other  property  held by it all accrued  fees and  unreimbursed  expenses  the
  payment of which is contemplated by


                                      -30-
<PAGE>

   Sections 6D and 7, upon receipt by the Fund of a statement setting forth such
   fees and expenses.  In the event of the appointment of a successor custodian,
   it is agreed that the funds and securities  owned by the Fund and held by the
   Custodian or any Subcustodian shall be delivered to the successor  custodian,
   and the Custodian agrees to cooperate with the Fund in execution of documents
   and  performance  of  other  actions  necessary  or  desirable  in  order  to
   substitute the successor custodian for the Custodian under this Agreement.
         9. Amendment:  This Agreement  constitutes the entire understanding and
   agreement of the parties hereto with respect to the subject matter hereof. No
   provision  of  this  Agreement  may be  amended  or  terminated  except  by a
   statement in writing  signed by the party  against which  enforcement  of the
   amendment or termination is sought.
         In connection with the operation of this  Agreement,  the Custodian and
  the  Fund  may  agree  in  writing  from  time  to  time  on  such  provisions
  interpretative of or in addition to the provisions of this Agreement as may in
  their joint opinion be consistent with the general tenor of this Agreement. No
  interpretative  or  additional  provisions  made as provided in the  preceding
  sentence shall be deemed to be an amendment of this Agreement.

         The section  headings in this Agreement are for the  convenience of the
   parties and in no way alter, amend, limit or



                                      -31-
<PAGE>

   restrict  the  contractual  obligations  of the  parties  set  forth  in this
   Agreement.

         10.  Governing  Law:  This  instrument is executed and delivered in The
   Commonwealth  of  Massachusetts  and  shall  be  governed  by  and  construed
   according to the laws of said Commonwealth.

         11.  Notices:  Notices and other  writings  delivered or mailed postage
  prepaid  to the  Fund  addressed  to the  Fund  at 60  State  Street,  Boston,
  Massachusetts  02109 or to such other address as the Fund may have  designated
  to the Custodian in writing,  or to the Custodian at 40 Water Street,  Boston,
  Massachusetts 02109,  Attention:  Manager,  Securities Department,  or to such
  other  address as the  Custodian  may have  designated to the Fund in writing,
  shall be deemed to have been  properly  delivered  or given  hereunder  to the
  respective addressee.
         12. Binding Effect:  This Agreement shall be binding on and shall inure
  to the benefit of the Fund and the Custodian and their  respective  successors
  and assigns,  provided that neither party hereto may assign this  Agreement or
  any of its rights or obligations  hereunder  without the prior written consent
  of the other party.
         13.  Counterparts:  This  Agreement  may be  executed  in any number of
   counterparts, each of which shall be deemed an original. This Agreement shall
   become effective when one or more counterparts have been signed and delivered
   by each of the parties.


                                      -32-
<PAGE>


         IN WITNESS WHEREOF, each of the parties has caused this Agreement to be
  executed in its name and behalf on the day and year first above written.

  PIONEER MID-CAP FUND                      BROWN BROTHERS HARRIMAN & CO.


  By _____________________________          per pro __________________________













                                      -33-



                      INVESTMENT COMPANY SERVICE AGREEMENT

                                February 1, 1996


         Pioneer  Mid-Cap  Fund, a Delaware  business  trust with its  principal
place of business at 60 State Street,  Boston,  Massachusetts 02109 ("Customer")
and Pioneering Services Corporation, a Massachusetts corporation ("PSC"), hereby
agree as follows:

         1.SERVICES  TO BE PROVIDED BY PSC.  During the term of this  Agreement,
PSC will provide to each series of shares of beneficial  interest (the "Series")
of Customer, which may be established,  from time to time (the "Account"),  with
the services described in Exhibits A, B, C and D (collectively,  the "Exhibits")
that are attached hereto and incorporated herein by reference.  It is understood
that PSC may subcontract any of such services to one or more firms designated by
PSC,  provided  that PSC (i) shall be solely  responsible  for all  compensation
payable  to any such firm and (ii) shall be liable to  Customer  for the acts or
omissions of any such firm to the same extent as PSC would be liable to Customer
with respect to any such act or omission hereunder.

         2.EFFECTIVE  DATE.  This Agreement  shall become  effective on the date
hereof  (the  "Effective  Date")  and  shall  continue  in  effect  until  it is
terminated in accordance with Section 11 below.

         3.DELIVERY,  VERIFICATION AND RECEIPT FOR DATA AND ASSETS. Prior to the
Effective Date, Customer agrees to deliver to PSC all such  documentation,  data
and  materials  as PSC may  reasonably  prescribe  to enable it to  perform  the
services contemplated by this Agreement. If PSC so requests,  Customer agrees to
confirm the accuracy of any starting  records of Customer's  assets and accounts
produced from PSC's computer or held in other  recording  systems.  In the event
Customer  does not,  prior to the Effective  Date,  comply fully with any of the
foregoing  provisions  of this  Section  3, the date for  commencement  of PSC's
services  hereunder  may be  postponed  by PSC until such  compliance  has taken
place.

         Customer  shall,  from time to time,  while this Agreement is in effect
deliver all such  materials  and data as may be necessary or desirable to enable
PSC to perform its  services  hereunder,  including  without  limitation,  those
described in Section 12 hereof.

         4.REPORTS  AND  MAINTENANCE  OF  RECORDS  BY PSC.  PSC will  furnish to
Customer and to properly authorized auditors, examiners, distributors,  dealers,
underwriters, salesmen, insurance companies, investors, and others designated by
Customer


<PAGE>

in  writing,  such  books,  any and all records and reports at such times as are
prescribed for each service in the Exhibits attached hereto.  Customer agrees to
examine or to ask any other authorized  recipient to examine each such report or
copy   promptly  and  will  report  or  cause  to  be  reported  any  errors  or
discrepancies  therein of which Customer then has any knowledge.  PSC may at its
option at any time, and shall  forthwith upon  Customer's  demand,  turn over to
Customer and cease to retain in PSC's files,  any and all records and  documents
created and  maintained  by PSC pursuant to this  Agreement  which are no longer
needed by PSC in the performance of its services or for its protection.

         If not so turned over to Customer,  such  documents and reports will be
retained by PSC for six years from the year of creation, during the first two of
which the same will be in readily accessible form. At the end of six years, such
records and  documents  will be turned  over to Customer by PSC unless  Customer
authorizes their destruction.

         5.PSC'S DUTY OF CARE. PSC shall at all time use reasonable care and act
in good faith in performing its duties  hereunder.  PSC shall incur no liability
to Customer in connection with its performance of services  hereunder  except to
the extent that it does not comply with the foregoing standards.

         PSC  shall at all  times  adhere  to  various  procedures  and  systems
consistent  with  industry  standards in order to safeguard  Customer's  checks,
records and other data from loss or damage  attributable  to fire or theft.  PSC
shall maintain insurance adequate to protect against the costs of reconstructing
checks,  records  and other  data in the  event of such  loss and  shall  notify
Customer in the event of a material  adverse change in such insurance  coverage.
In the event of damage or loss occurring to Customer's records or data such that
PSC is unable  to meet the  terms of this  Agreement,  PSC  shall  transfer  all
records and data to a transfer  agent of  Customer's  choosing  upon  Customer's
written authorization to do so.

         Without  limiting the  generality  of the  foregoing,  PSC shall not be
liable or responsible for delays or errors  occurring by reason of circumstances
beyond its  control  including  acts of civil,  military  or banking  authority,
national  emergencies,  labor  difficulties,  fire, flood or other catastrophes,
acts of God, insurrection, war, riots, failure of transportation,  communication
or power supply.

         6.CONFIDENTIALITY.   PSC  will  keep   confidential   all  records  and
information  provided by Customer or by the  shareholders of the Account to PSC,
except to the extent disclosures are required by this Agreement, are required by
the  Customer's  Prospectus  


                                      -2-
<PAGE>

and Statement of Additional Information,  or are required by a valid subpoena or
warrant  issued by a court of  competent  jurisdiction  or by a state or federal
agency or governmental authority.

         7.CUSTOMER  INSPECTION.  Upon reasonable  notice,  in writing signed by
Customer,  PSC shall make available,  during regular business hours, all records
and other data created and maintained  pursuant to this Agreement for reasonable
audit and  inspection by Customer or  Customer's  agents,  including  reasonable
visitation  by  Customer  or  Customer's  agents,   including  inspecting  PSC's
operation  facilities.  PSC shall not be liable for injury to or  responsible in
any way for the safety of any  individual  visiting PSC's  facilities  under the
authority of this  section.  Customer will keep  confidential  and will cause to
keep  confidential  all  confidential  information  obtained by its employees or
agents or any other  individual  representing  Customer while on PSC's premises.
Confidential  information  shall include (1) any  information of whatever nature
regarding   PSC's   operations,   security   procedures,   and  data  processing
capabilities,  (2)  financial  information  regarding  PSC, its  affiliates,  or
subsidiaries,  and (3) any information of whatever kind or description regarding
any customer of PSC, its affiliates or subsidiaries.

         8.RELIANCE BY PSC ON INSTRUCTIONS AND ADVICE;  INDEMNITY.  PSC shall be
entitled  to seek  advice of  Customer's  legal  counsel  with  respect to PSC's
responsibilities  and  duties  hereunder  and  shall in no event  be  liable  to
Customer for any action taken pursuant to such advice, except to the extent that
Customer's legal counsel determines in its sole discretion that the rendering of
advice to PSC would result in a conflict of interest.

         Whenever PSC is authorized to take action hereunder  pursuant to proper
instructions from Customer,  PSC shall be entitled to rely upon any certificate,
letter or other  instrument or telephone call  reasonably  believed by PSC to be
genuine  and to have  been  properly  made or  signed  by an  officer  or  other
authorized  agent of  Customer,  and shall be entitled to receive as  conclusive
proof of any  fact or  matter  required  to be  ascertained  by it  hereunder  a
certificate  signed by an officer of Customer or any other person  authorized by
Customer's Board of Trustees.

         Subject to the  provisions  of Section 13 of this  Agreement,  Customer
agrees to indemnify and hold PSC, its  employees,  agents and nominees  harmless
from any and all claims,  demands,  actions  and suits,  whether  groundless  or
otherwise,  and from and against  any and all  judgments,  liabilities,  losses,
damages,  costs,  charges,  counsel fees and other  expenses of every nature and
character  arising out of or in any way relating to PSC's 


                                      -3-
<PAGE>

action or non-action upon information, instructions or requests given or made to
PSC by Customer with respect to the Account.

         Notwithstanding the above,  whenever Customer may be asked to indemnify
or hold PSC harmless,  Customer shall be advised of all pertinent  facts arising
from the situation in question.  Additionally,  PSC will use reasonable  care to
identify and notify Customer  promptly  concerning any situation which presents,
actually or potentially, a claim for indemnification against Customer.  Customer
shall have the option to defend PSC  against any claim for which PSC is entitled
to  indemnification  from  Customer  under  the terms  hereof,  and in the event
Customer so elects, it will notify PSC and, thereupon,  Customer shall take over
complete  defense of the claim and PSC shall  sustain no further  legal or other
expenses  in such a  situation  for  which  indemnification  shall be  sought or
entitled.  PSC may in no event  confess any claim or make any  compromise in any
case in which  Customer  will be asked to indemnify  PSC except with  Customer's
prior written consent.

         9.MAINTENANCE  OF DEPOSIT  ACCOUNTS.  PSC shall  maintain  on behalf of
Customer such deposit  accounts as are necessary or desirable  from time to time
to enable PSC to carry out the provisions of this Agreement.

         10.COMPENSATION  AND REIMBURSEMENT TO PSC. For the services rendered by
PSC under  this  Agreement,  Customer  agrees to pay an annual fee of $22.00 per
account  to PSC,  such fee to be  payable  in  equal  monthly  installments.  In
addition,  Customer shall reimburse PSC monthly for out-of-pocket  expenses such
as postage, forms,  envelopes,  checks,  "outside" mailings,  telephone line and
other charges,  mailgrams,  mail insurance on  certificates  and data processing
file recovery insurance.

         11.TERMINATION.  Either PSC or Customer may at any time  terminate this
Agreement by giving 90 days' prior written notice to the other.

         After the date of termination,  for so long as PSC in fact continues to
perform any one or more of the services  contemplated  by this  Agreement or any
exhibit hereto,  the provisions of this Agreement,  including without limitation
the provisions of Section 8 dealing with indemnification, shall where applicable
continue in full force and effect.

         12.REQUIRED  DOCUMENTS.  Customer agrees to furnish to PSC prior to the
Effective Date the following (to the extent not previously provided):

                                      -4-
<PAGE>

     A.   Two(2) copies of the Agreement and  Declaration  of Trust of Customer,
          and  of  any  amendments  thereto,  certified  by an  officer  of  the
          Customer.

     B.   Two(2) copies of the following  documents,  currently certified by the
          Secretary of Customer:

          a.   Customer's By-laws and any amendment thereto.

          b.   Certified  copies of resolutions of Customer's  Board of Trustees
               covering the following matters.


               (1)  Approval of this Agreement.


               (2)  Authorization of specified  officers of Customer to instruct
                    PSC hereunder (if different  from other officers of Customer
                    previously  specified  by  Customer  as  to  other  Customer
                    accounts being serviced by PSC).

     C.   List of all officers of Customer together with specimen  signatures of
          those  officers who are authorized to sign share  certificates  and to
          instruct PSC in all other matters.

     D.   Two (2) copies of the following:

          a.   Prospectus 
          b.   Statement of Additional Information 
          c.   Management Agreement
          d.   Registration Statement

     E.   Opinion of counsel  for  Customer as to the due  authorization  by and
          binding effect of this Agreement on Customer, the applicability of the
          Securities Act of 1933, as amended,  and the Investment Company Act of
          1940, as amended,  and the approval by such public  authorities as may
          be prerequisite to lawful sale and delivery in the various states.

     F.   Amendments  to, and changes in, any of the  foregoing  forthwith  upon
          such amendments and changes being available, but in no case later than
          the effective date.

         13.INDEMNIFICATION. The parties to this Agreement acknowledge and agree
that all liabilities arising,  directly or indirectly,  under this Agreement, of
any and every  nature  whatsoever,  including  without  limitation,  liabilities
arising in  connection  with any agreement of Customer or its Trustees set


                                      -5-
<PAGE>

forth herein to indemnify any party to this Agreement or any other person, shall
be  satisfied  out of the assets of the Account  first and then of Customer  and
that no Trustee,  officer or holder of shares of beneficial interest of Customer
shall be  personally  liable for any of the  foregoing  liabilities.  Customer's
Agreement and  Declaration of Trust,  dated August 8, 1995,  describes in detail
the respective  responsibilities  and  limitations on liability of the Trustees,
officers, and holders of shares of beneficial interest of Customer.

         14.LIMITATIONS  ON EXCHANGES.  PSC  acknowledges  that  shareholders of
other  Pioneer  mutual funds may not open new accounts with Customer or purchase
shares of  Customer  by  exchanging  shares  from other  Pioneer  mutual  funds.
Shareholders  of Customer  may  exchange  their shares of Customer for shares of
other Pioneer mutual funds. Such shares, however, may not be exchanged back into
Customer.  The foregoing exchange  restriction shall be in effect until December
31, 1996, unless Customer notifies PSC otherwise.

         15.MISCELLANEOUS.  In connection  with the operation of this Agreement,
PSC and Customer may agree from time to time on such provisions  interpretive of
or in addition to the provisions of this Agreement as may in their joint opinion
be consistent with the general tenor of this Agreement. Any such interpretive or
additional  provisions are to be signed by both parties and annexed hereto,  but
no such  provision  shall  contravene  any  applicable  Federal and state law or
regulation,  and no such  provision  shall be deemed to be an  amendment of this
Agreement.

         This  Agreement  shall be construed in accordance  with the laws of The
Commonwealth of Massachusetts.

                                      -6-

<PAGE>


         IN WITNESS  WHEREOF,  Customer and PSC have caused this Agreement to be
executed in their respective names by their respective  officers  thereunto duly
authorized as of the date first written above.

ATTEST:
                                            PIONEERING SERVICES CORPORATION



- --------------------------                  -----------------------------
Joseph P. Barri, Clerk                      William H. Smith, Jr.
                                            President


                                            PIONEER MID-CAP FUND



- --------------------------                  -----------------------------
Joseph P. Barri, Secretary                  John F. Cogan, Jr.
                                            President



                                      -7-


<PAGE>

               EXHIBIT A - TO INVESTMENT COMPANY SERVICE AGREEMENT



Shareholder Account Service:

As Servicing  Agent for fund accounts and in accordance  with the  provisions of
the standard fund application and Customer's prospectus, PSC will:

     1.   Open, maintain and close accounts.

     2.   Purchase shares for the shareholder.

     3.   Out of the money  received in payment for sales of  Customer's  shares
          pay to the Customer's  custodian the net asset value per share and pay
          to the  underwriter and to the dealer their  commission,  if any, on a
          bimonthly basis.

     4.   Redeem shares by systematic withdrawal orders. (See Exhibit B)

     5.   Issue share certificates, upon instruction, resulting from withdrawals
          from  share  accounts  (It  is  the  policy  of  PSC  to  issue  share
          certificates only upon request of the  shareholder).  Maintain records
          showing name, address, certificate numbers and number of shares.

     6.   Deposit  certificates to shareholder accounts when furnished with such
          documents as PSC deems necessary to authorize the deposit.

     7.   Reinvest or disburse dividends and other  distributions upon direction
          of shareholder.

     8.   Establish the proper registration of ownership of shares.

     9.   Pass upon the adequacy of documents  submitted by a shareholder or his
          legal  representative  to  substantiate  the  transfer of ownership of
          shares from the registered owner to transferees.

     10.  Make  transfers  from time to time upon the books of the  Customer  in
          accordance with properly executed transfer  instructions  furnished to
          PSC.

     11.  Upon receiving appropriate detailed instructions and written materials
          prepared by Customer and,  where 

<PAGE>

          applicable,   proxy  proofs  checked  by  Customer,  mail  shareholder
          reports,   proxies  and  related  materials  of  suitable  design  for
          automatic  enclosing,  receive  and  tabulate  executed  proxies,  and
          furnish an annual meeting list of shareholders when required.

     12.  Respond to shareholder inquiries in a timely manner.

     13.  Maintain dealer and salesperson records.

     14.  Maintain  and  furnish to Customer  such  shareholder  information  as
          Customer  may  reasonably  request  for the purpose of  compliance  by
          Customer  with  the  applicable  tax  and  securities  law of  various
          jurisdictions.

     15.  Mail confirmations of transactions to shareholders in a timely fashion
          (confirmations  of  Automatic  Investment  Plan  transactions  will be
          mailed quarterly).

     16.  Provide Customer with such  information  regarding  correspondence  as
          well as enable Customer to comply with related N-SAR requirements.

     17.  Maintain continuous proof of the outstanding shares of Customer.

     18.  Solicit taxpayer identification numbers.

     19.  Provide data to enable Customer to file abandoned property reports for
          those  accounts that have been  indicated by the Post Office to be not
          at the address of record with no forwarding address.

     20.  Maintain bank accounts and reconcile same on a monthly basis.

     21.  Provide  management  information  reports  on  a  quarterly  basis  to
          Customer's Board of Trustees/Directors  outlining the level of service
          provided.

     22.  Provide  sale/statistical  reporting  for purposes of  providing  fund
          management with information to maximizing the return to shareholders.



<PAGE>

               EXHIBIT B - TO INVESTMENT COMPANY SERVICE AGREEMENT



Redemption Service:

In accordance  with the  provisions of the Customer's  Prospectus,  as servicing
agent for the redemptions, PSC will:

     1.   Where  applicable,  establish  accounts  payable based on  information
          furnished  to PSC  on  behalf  of  Customer  (i.e.,  copies  of  trade
          confirmations and other documents deemed necessary or desirable by PSC
          on the first business day following the trade date).

     2.   Receive for redemption either:

          a.   Share certificates, supported by appropriate documentation; or

          b.   Written or telephone  authorization  (where no share certificates
               are issued).

     3.   Verify there are  sufficient  available  shares in an account to cover
          redemption requests.

     4.   Transfer the redeemed or  repurchased  shares to  Customer's  treasury
          share account or, if applicable, cancel such shares for retirement.

     5.   Pay the applicable  redemption or repurchase  price to the shareholder
          in accordance with  Customer's  Prospectus and Declaration of Trust on
          or  before  the  seventh   calendar  day  succeeding  any  receipt  of
          certificates  or requests for redemption or repurchase in "good order"
          as defined in the Prospectus.

     6.   Notify Customer and the underwriter on behalf of Customer of the total
          number of shares  presented  and  covered  by such  requests  within a
          reasonable period of time following receipt.

     7.   Promptly notify the shareholder if any such certificate or request for
          redemption or  repurchase is not in "good order"  together with notice
          of the  documents  required to comply  with the good order  standards.
          Upon  receipt  of  the  necessary  documents  PSC  shall  effect  such
          redemption  at the net asset value  applicable at the date and time of
          receipt of such documents.
<PAGE>

     8.   Produce periodic reports of unsettled items, if any.

     9.   Adjust   unsettled   items,   if  any,   relative  to  dividends   and
          distributions.

     10.  Report to  Customer  any late  redemptions  which must be  included in
          Customer's N-SAR.


<PAGE>
               EXHIBIT C - TO INVESTMENT COMPANY SERVICE AGREEMENT




Exchange Service:

     1.   Receive and  process  exchanges  in  accordance  with a duly  executed
          exchange  authorization.  PSC will redeem  existing shares and use the
          proceeds to purchase new shares. Shares of Customer purchased directly
          or acquired  through  reinvestment  of dividends on such shares may be
          exchanged  for shares of other  Pioneer  funds (which funds have sales
          charges) only by payment of the  applicable  sales charge,  if any, as
          described in  Customer's  Prospectus.  Shares of Customer  acquired by
          exchange and through  reinvestment  of dividends on such shares may be
          re-exchanged  to another  Pioneer fund at their  respective  net asset
          values.

     2.   Make authorized deductions of fees, if any.

     3.   Register  new  shares  identically  with the  shares  surrendered  for
          exchange.  Mail new shares certificates,  if requested,  or an account
          statement  confirming  the exchange by first class mail to the address
          of record.

     4.   Maintain  a record of  unprocessed  exchanges  and  produce a periodic
          report.


<PAGE>
               EXHIBIT D - TO INVESTMENT COMPANY SERVICE AGREEMENT




Income Accrual and Disbursing Service:

     1.   Distribute income dividends and/or capital gain distributions,  either
          through  reinvestment  or in  cash,  in  accordance  with  shareholder
          instructions.

     2.   On the mailing date,  Customer  shall make  available to PSC collected
          funds to make such distribution.

     3.   Adjust unsettled items relative to dividends and distribution.

     4.   Reconcile dividends and/or distributions with Customer.

     5.   Prepare  and file  annual  Federal  and State  information  returns of
          distributions  and, in the case of Federal  returns,  mail information
          copies  to  shareholders  and  report  and pay  Federal  income  taxes
          withheld from distributions made to non-resident aliens.





                        MORRIS, NICHOLS, ARSHT & TUNNELL
                            1201 North Market Street
                                 P.O. Box 1347
                        Wilmington, Delaware 19899-1347

                                          January 31, 1996



Pioneer Mid-Cap Fund
60 State Street
Boston, Massachusetts  02109

                  Re:      Pioneer Mid-Cap Fund

Ladies and Gentlemen:

                  We have acted as special  Delaware  counsel to Pioneer Mid-Cap
Fund,  a Delaware  business  trust (the  "Trust"),  in  connection  with certain
matters  relating to the  formation  of the Trust and the  issuance of Shares of
beneficial  interest  in the  Trust.  Capitalized  terms  used  herein  and  not
otherwise herein defined are used as defined in the Agreement and Declaration of
Trust of the Trust dated January 12, 1996 (the "Governing Instrument").

                  In rendering  this  opinion,  we have  examined  copies of the
following  documents,  each in the form provided to us: the Certificate of Trust
of the Trust as filed in the  Office of the  Secretary  of State of the State of
Delaware (the "Recording Office") on January 29, 1996 (the  "Certificate");  the
Governing  Instrument;  the  By-laws of the Trust;  certain  resolutions  of the
Trustees  of  the  Trust;  an  Adoption  Of And  Amendment  To  Notification  Of
Registration to be filed with the Securities and Exchange Commission on or about
February 1, 1996 by which the Trust will adopt the  Notification of Registration
Filed  Pursuant to Section  8(a) of the  Investment  Company Act of 1940 on Form
N-8A of Pioneer Three, a Massachusetts business trust;  Post-Effective Amendment
No.  21 to  the  Registration  Statement  on  Form  N-1A  of  Pioneer  Three,  a
Massachusetts  business trust,  by which the Trust will adopt such  Registration
Statement to be filed with the  Securities  and Exchange  Commission on or about
February 1, 1996 (the "Post-Effective  Amendment");  and a certification of good
standing of the Trust obtained as of a recent date from the Recording Office. In
such  examinations,  we have  assumed the  genuineness  of all  signatures,  the
conformity to original  documents of all documents  submitted to us as copies or
drafts of documents to be executed, and the legal capacity of natural persons to
complete the execution of documents. 

<PAGE>
Pioneer Mid-Cap Fund
January 31, 1996
Page 2



We  have  further  assumed  for  the  purpose  of  this  opinion:  (i)  the  due
authorization,  execution  and delivery by, or on behalf of, each of the parties
thereto of the above-referenced  instruments,  certificates and other documents,
and of all documents  contemplated by the Governing Instrument,  the By-laws and
applicable  resolutions of the Trustees to be executed by investors  desiring to
become  Shareholders;  (ii) the payment of  consideration  for  Shares,  and the
application of such consideration,  as provided in the Governing Instrument, and
compliance with the other terms,  conditions and  restrictions  set forth in the
Governing Instrument and all applicable resolutions of the Trustees of the Trust
in connection with the issuance of Shares (including,  without  limitation,  the
taking of all appropriate  action by the Trustees to designate  Series of Shares
and the rights and  preferences  attributable  thereto  as  contemplated  by the
Governing  Instrument);  (iii)  that  appropriate  notation  of  the  names  and
addresses  of, the  number of Shares  held by,  and the  consideration  paid by,
Shareholders will be maintained in the appropriate registers and other books and
records of the Trust in connection with the issuance,  redemption or transfer of
Shares;  (iv)  that no  event  has  occurred  subsequent  to the  filing  of the
Certificate that would cause a termination or  reorganization of the Trust under
Section 4 or Section 5 of Article IX of the Governing  Instrument;  (v) that the
activities of the Trust have been and will be conducted in  accordance  with the
terms of the Governing  Instrument and the Delaware  Business Trust Act, 12 Del.
C. ss.ss. 3801 et seq. (the "Delaware Act"); and (vi) that each of the documents
examined  by  us is in  full  force  and  effect  and  has  not  been  modified,
supplemented or otherwise amended,  except as herein  referenced.  No opinion is
expressed  herein  with  respect to the  requirements  of, or  compliance  with,
federal or state securities or blue sky laws.  Further, we express no opinion on
the  sufficiency  or accuracy  of any  registration  or  offering  documentation
relating to the Trust or the Shares.  As to any facts  material to our  opinion,
other than those assumed,  we have relied without  independent  investigation on
the  above-referenced  documents and on the accuracy,  as of the date hereof, of
the matters therein contained.

                  Based on and  subject  to the  foregoing,  and  limited in all
respects to matters of Delaware law, it is our opinion that:

                  1. The Trust is a duly organized and validly existing business
trust in good standing under the laws of the State of Delaware.

                  2.  The  Shares   (including  the  Shares  registered  by  the
Post-Effective  Amendment),  when issued to  Shareholders in accordance with the
terms,  conditions,  requirements  and  procedures  set  forth in the  Governing
Instrument, will constitute legally issued, 


<PAGE>
Pioneer Mid-Cap Fund
January 31, 1996
Page 3



fully paid and non-assessable Shares of beneficial interest in the Trust.

                  3.  Under  the  Delaware  Act and the  terms of the  Governing
Instrument, each Shareholder of the Trust, in such capacity, will be entitled to
the same  limitation of personal  liability as that extended to  stockholders of
private  corporations for profit organized under the general  corporation law of
the State of  Delaware;  provided,  however,  that we express  no  opinion  with
respect to the  liability of any  Shareholder  who is, was or may become a named
Trustee of the Trust.  Neither the  existence  nor exercise of the voting rights
granted to Shareholders under the Governing  Instrument will, of itself, cause a
Shareholder  to be  deemed a  trustee  of the  Trust  under  the  Delaware  Act.
Notwithstanding  the foregoing or the opinion expressed in paragraph 2 above, we
note that,  pursuant to Section 2 of Article VIII of the  Governing  Instrument,
the  Trustees  have the  power  to  cause  Shareholders,  or  Shareholders  of a
particular  Series,  to pay certain  custodian,  transfer,  servicing or similar
agent charges by setting off the same against  declared but unpaid  dividends or
by reducing Share ownership (or by both means).

                  We understand that you are about to register 694,726 Shares of
beneficial  interest  in the  Trust  by the  Post-Effective  Amendment  and  are
currently  in the process of  registering  or  qualifying  Shares in the various
states,  and we hereby  consent to the filing of a copy of this opinion with the
Securities and Exchange  Commission as part of the Post-Effective  Amendment and
with the securities administrators of such states. In giving this consent, we do
not thereby  admit that we come within the category of persons  whose consent is
required under Section 7 of the Securities Act of 1933, as amended, or the rules
and regulations of the Securities and Exchange Commission thereunder.  Except as
provided in this paragraph,  the opinion set forth above is expressed solely for
the  benefit of the  addressee  hereof  and may not be relied  upon by, or filed
with,  any other  person or entity for any  purpose  without  our prior  written
consent.

                                          Sincerely,

                                          /S/MORRIS, NICHOLS, ARSHT & TUNNELL
                                          MORRIS, NICHOLS, ARSHT & TUNNELL


                    CONSENT OF INDEPENDENT PUBLIC ACCOUNTANTS



As independent  public  accountants,  we hereby consent to the use of our report
dated  October 27, 1995 included in Pioneer  Mid-Cap  Fund's  (formerly  Pioneer
Three) 1995 annual  report (and to all  references  to our firm)  included in or
made a part of the Pioneer  Mid-Cap  Fund  Post-Effective  Amendment  No. 21 and
Amendment  No. 21 to  Registration  Statement  File Nos.  2-79140 and  811-3564,
respectively.




                                           ARTHUR ANDERSEN LLP




Boston, Massachusetts
February 1, 1996



                        CLASS A SHARES DISTRIBUTION PLAN

                              PIONEER MID-CAP FUND


CLASS A SHARES  DISTRIBUTION  PLAN,  dated as of  February  1, 1996,  of PIONEER
MID-CAP FUND, a Delaware business trust (the "Trust").

                                   WITNESSETH

WHEREAS,  the  Trust  is  engaged  in  business  as  an  open-end,  diversified,
management investment company and is registered under the Investment Company Act
of 1940, as amended  (collectively  with the rules and  regulations  promulgated
thereunder, the "1940 Act");

WHEREAS,  the Trust  intends to distribute  shares of  beneficial  interest (the
"Class A Shares") of each series of the Trust  ("Portfolio")  in accordance with
Rule 12b-1 promulgated by the Securities and Exchange  Commission under the 1940
Act ("Rule  12b-1"),  and desires to adopt this Class A  distribution  plan (the
"Class A Plan") as a plan of distribution pursuant to such Rule;

WHEREAS, the Trust desires that Pioneer Funds Distributor, Inc., a Massachusetts
corporation ("PFD"), provide certain distribution services for the Trust's Class
A Shares in connection with the Class A Plan;

WHEREAS,  the  Trust  has  entered  into an  underwriting  agreement  (in a form
approved by the Trust's  Board of  Trustees in a manner  specified  in such Rule
12b-1) with PFD,  whereby PFD  provides  facilities  and  personnel  and renders
services to the Trust in connection with the offering and  distribution of Class
A Shares (the "Underwriting Agreement");

WHEREAS,  the Trust  also  recognizes  and  agrees  that (a) PFD may  retain the
services of firms or individuals to act as dealers or wholesalers (collectively,
the "Dealers") of the Class A Shares in connection  with the offering of Class A
Shares,  (b) PFD may  compensate  any Dealer  that  sells  Class A Shares in the
manner and at the rate or rates to be set forth in an agreement  between PFD and
such Dealer and (c) PFD may make such  payments to the Dealers for  distribution
services  out of the fee  paid to PFD  hereunder,  any  deferred  sales  charges
imposed by PFD in connection with the repurchase of Class A Shares,  its profits
or any other source available to it;

WHEREAS,  the Trust  recognizes and agrees that PFD may impose certain  deferred
sales charges in connection  with the repurchase of Class A Shares by the Trust,
and PFD may retain  (or  receive 

<PAGE>

from the Trust, as the case may be) all such deferred sales charges; and

WHEREAS,  the Board of Trustees of the Trust,  in considering  whether the Trust
should adopt and implement this Class A Plan, has evaluated such  information as
it deemed  necessary  to an  informed  determination  whether  this Class A Plan
should be adopted and implemented  and has considered such pertinent  factors as
it deemed  necessary to form the basis for a decision to use assets of the Trust
for such purposes, and has determined that there is a reasonable likelihood that
the adoption and  implementation of this Class A Plan will benefit the Trust and
its Class A shareholders;

NOW,  THEREFORE,  the Board of Trustees of the Trust hereby  adopts this Class A
Plan for the Trust as a plan of  distribution  of Class A Shares  in  accordance
with Rule 12b-1, on the following terms and conditions:

         1.The  Trust may expend  pursuant  to this Class A Plan  amounts not to
exceed 0.25% of the average daily net assets  attributable  to Class A Shares of
each Portfolio per annum.

         2.Subject to the limit in paragraph  1, the Trust shall  reimburse  PFD
for amounts expended by PFD to finance any activity which is primarily  intended
to  result  in the sale of  Class A Shares  of the  Trust  or the  provision  of
services  to Class A  shareholders  of the Trust,  including  but not limited to
commissions  or other payments to Dealers and salaries and other expenses of PFD
relating to selling or servicing efforts,  provided,  that the Board of Trustees
of the Trust shall approve categories of expenses for which  reimbursement shall
be made pursuant to this paragraph 2 and, without limiting the generality of the
foregoing, the initial categories of such expenses shall be (i) a service fee to
be paid to qualified  broker-dealers  in an amount not to exceed 0.25% per annum
of each  Portfolio's  daily net  assets  attributable  to Class A  Shares;  (ii)
reimbursement  to PFD for its  expenditures  for  broker-dealer  commissions and
employee  compensation  on certain  sales of the Trust's  Class A Shares with no
initial sales charge;  and (iii)  reimbursement to PFD for expenses  incurred in
providing  services to Class A shareholders  and supporting  broker-dealers  and
other  organizations,  such as banks and trust  companies,  in their  efforts to
provide such services (any addition of such  categories  shall be subject to the
approval of the  Qualified  Trustees,  as defined  below,  of the  Trust).  Such
reimbursement shall be paid ten (10) days after the end of the month or quarter,
as the case may be, in which such expenses are incurred.  The Trust acknowledges
that PFD will  charge  an  initial  sales  load or a  contingent  sales  load in
connection  with certain  sales of Class A Shares of the Trust and that PFD will
reallow to Dealers all or a portion of such sales  loads,  as  described  in the
Trust's  Prospectus from time to time.  

                                      -2-
<PAGE>

Nothing  contained  herein is  intended to have any effect  whatsoever  on PFD's
ability to charge any such sales loads or to reallow all or any portion  thereof
to Dealers.

         3.The Trust  understands  that  agreements  between PFD and Dealers may
provide  for payment of fees to Dealers in  connection  with the sale of Class A
Shares and the  provision  of  services  to Class A  shareholders  of the Trust.
Nothing in this Class A Plan shall be construed  as requiring  the Trust to make
any payment to any Dealer or to have any obligations to any Dealer in connection
with  services as a dealer of the Class A Shares.  PFD shall agree and undertake
that any  agreement  entered into between PFD and any Dealer shall  provide that
such  Dealer  shall  look  solely  to PFD  for  compensation  for  its  services
thereunder  and that in no event shall such  Dealer  seek any  payment  from the
Trust.

         4.Nothing herein contained shall be deemed to require the Trust to take
any action  contrary to its  Declaration  of Trust or By-Laws or any  applicable
statutory  or  regulatory  requirement  to which it is subject or by which it is
bound,  or  to  relieve  or  deprive  the  Trust's  Board  of  Trustees  of  the
responsibility for and control of the conduct of the affairs of the Trust.

         5.This  Class A Plan shall  become  effective  upon  approval  by (i) a
"majority of the outstanding  voting securities" of Class A of the Trust, (ii) a
vote of the Board of  Trustees,  and (iii) a vote of a majority of the  Trustees
who are not "interested persons" of the Trust and who have no direct or indirect
financial  interest  in the  operation  of the Class A Plan or in any  agreement
related to the Class A Plan (the "Qualified Trustees"),  such votes with respect
to (ii) and (iii) above to be cast in person at a meeting called for the purpose
of voting on this Class A Plan.

         6.This Class A Plan will remain in effect  indefinitely,  provided that
such continuance is "specifically  approved at least annually" by a vote of both
a  majority  of the  Trustees  of the  Trust  and a  majority  of the  Qualified
Trustees.  If such  annual  approval  is not  obtained,  this Class A Plan shall
expire  on ,  1997.  This  Class  A  Plan  shall  automatically  terminate  upon
assignment. In the event of termination or non-continuance of this Class A Plan,
each  Portfolio has twelve months to reimburse any expense which it incurs prior
to such termination or non-continuance, provided that payments by such Portfolio
during  such  twelve-month  period  shall not exceed  0.25% of each  Portfolio's
average daily net assets attributable to Class A Shares during such period.

         7.This  Class  A Plan  may be  amended  at any  time  by the  Board  of
Trustees,  provided  that  this  Class A Plan  may not be  amended  to  increase
materially the  limitation on the annual  percentage of average net assets which
may be expended  hereunder 


                                      -3-
<PAGE>

without  the  approval  of  holders of a  "majority  of the  outstanding  voting
securities"  of Class A of the Trust and may not be  materially  amended  in any
case  without  a vote of a  majority  of both  the  Trustees  and the  Qualified
Trustees.  Any  amendment of this Class A Plan to increase or modify the expense
categories  initially designated by the Trustees in paragraph 2 above shall only
require  approval of a majority of the  Trustees and the  Qualified  Trustees if
such amendment does not include an increase in the expense  limitation set forth
in paragraph 1 above.  This Class A Plan may be terminated at any time by a vote
of a  majority  of the  Qualified  Trustees  or by a vote  of the  holders  of a
"majority of the outstanding voting securities" of the Trust.

         8.In the event of  termination  or expiration of this Class A Plan, the
Trust may  nevertheless,  within twelve months of such termination or expiration
reimburse any expense which it incurs prior to such  termination  or expiration,
provided  that payments by the Trust during such  twelve-month  period shall not
exceed 0.25% of the Trust's  average  daily net assets  attributable  to Class A
Shares  during  such  period  and  provided   further  that  such  payments  are
specifically  approved  by the Board of  Trustees,  including  a majority of the
Qualified Trustees.

         9.The Trust and PFD shall provide to the Trust's Board of Trustees, and
the Board of Trustees shall review, at least quarterly,  a written report of the
amounts  expended  under  this  Class A Plan and the  purposes  for  which  such
expenditures were made.

         10.While this Class A Plan is in effect,  the selection and  nomination
of Qualified  Trustees  shall be committed to the discretion of the Trustees who
are not "interested persons" of the Trust.

         11.For  the  purposes  of this  Class A Plan,  the terms  "assignment,"
"interested  persons,"  "majority  of the  outstanding  voting  securities"  and
"specifically approved at least annually" are used as defined in the 1940 Act.

         12.The  Trust  shall  preserve  copies of this  Class A Plan,  and each
agreement  related  hereto and each  report  referred  to in  paragraph 9 hereof
(collectively,  the "Records"), for a period of not less than six (6) years from
the end of the fiscal year in which such  Records were made and, for a period of
two (2) years, each of such Records shall be kept in an easily accessible place.

         13.This  Class A Plan shall be governed by and  construed in accordance
with the laws of The Commonwealth of Massachusetts and the applicable provisions
of the 1940 Act.

                                      -4-
<PAGE>

         14.If any  provision of this Class A Plan shall be held or made invalid
by a court decision, statute, rule or otherwise, the remainder of the Plan shall
not be affected thereby.



                                      -5-


                        CLASS B SHARES DISTRIBUTION PLAN

                              PIONEER MID-CAP FUND


CLASS B SHARES  DISTRIBUTION  PLAN,  dated as of  February  1,  1996 of  PIONEER
MID-CAP FUND, a Delaware business trust (the "Trust").

                                   WITNESSETH

WHEREAS,  the  Trust  is  engaged  in  business  as  an  open-end,  diversified,
management investment company and is registered under the Investment Company Act
of 1940, as amended  (collectively  with the rules and  regulations  promulgated
thereunder, the "1940 Act");

WHEREAS,  the Trust  intends to distribute  shares of  beneficial  interest (the
"Class B Shares") of the Trust in accordance with Rule 12b-1  promulgated by the
Securities  and  Exchange  Commission  under the 1940 Act  ("Rule  12b-1"),  and
desires to adopt this Class B Shares distribution plan (the "Class B Plan") as a
plan of distribution pursuant to such Rule;

WHEREAS,   the  Trust  desires  that  Pioneer   Trusts   Distributor,   Inc.,  a
Massachusetts corporation ("PFD"), provide certain distribution services for the
Trust's Class B Shares in connection with the Class B Plan;

WHEREAS,  the  Trust  has  entered  into an  underwriting  agreement  (in a form
approved by the Trust's  Board of  Trustees in a manner  specified  in such Rule
12b-1) with PFD,  whereby PFD  provides  facilities  and  personnel  and renders
services to the Trust in connection with the offering and  distribution of Class
B Shares (the "Underwriting Agreement");

WHEREAS,  the Trust  also  recognizes  and  agrees  that (a) PFD may  retain the
services of firms or individuals to act as dealers or wholesalers (collectively,
the "Dealers") of the Class B Shares in connection  with the offering of Class B
Shares,  (b) PFD may  compensate  any Dealer  that  sells  Class B Shares in the
manner and at the rate or rates to be set forth in an agreement  between PFD and
such Dealer and (c) PFD may make such  payments to the Dealers for  distribution
services  out of the fee  paid to PFD  hereunder,  any  deferred  sales  charges
imposed by PFD in connection with the repurchase of Class B shares,  its profits
or any other source available to it;
<PAGE>

WHEREAS,  the Trust  recognizes and agrees that PFD may impose certain  deferred
sales charges in connection  with the repurchase of Class B Shares by the Trust,
and PFD may retain  (or  receive  from the  Trust,  as the case may be) all such
deferred sales charges; and

WHEREAS,  the Board of Trustees of the Trust,  in considering  whether the Trust
should adopt and implement this Class B Plan, has evaluated such  information as
it deemed  necessary  to an  informed  determination  whether  this Class B Plan
should be adopted and implemented  and has considered such pertinent  factors as
it deemed  necessary to form the basis for a decision to use assets of the Trust
for such purposes, and has determined that there is a reasonable likelihood that
the adoption and  implementation of this Class B Plan will benefit the Trust and
its Class B shareholders;

NOW,  THEREFORE,  the Board of Trustees of the Trust hereby  adopts this Class B
Plan for the Trust as a plan of  distribution  of Class B Shares  in  accordance
with Rule 12b-1, on the following terms and conditions:

                                                       

     1.        (a)The Trust is authorized to compensate PFD for (1) distribution
          services and (2) personal and account  maintenance  services performed
          and expenses  incurred by PFD in  connection  with the Trust's Class B
          Shares.  Such  compensation  shall be calculated and accrued daily and
          paid  monthly or at such other  intervals as the Board of Trustees may
          determine.

               (b)The  amount  of  compensation  paid  during  any one  year for
          distribution  services with respect to Class B Shares shall be .75% of
          the Trust's  average daily net assets  attributable  to Class B Shares
          for such year.

               (c)Distribution  services  and  expenses  for  which  PFD  may be
          compensated  pursuant  to  this  Plan  include,   without  limitation:
          compensation to and expenses (including allocable overhead, travel and
          telephone expenses) of (i) Dealers,  brokers and other dealers who are
          members  of the  National  Association  of  Securities  Dealers,  Inc.
          ("NASD") or their officers, sales representatives and employees,  (ii)
          PFD and any of its  affiliates and any of their  respective  officers,
          sales  representatives and employees,  (iii) banks and their officers,
          sales  representatives  and  employees,   who  engage  in  or  support
          distribution  of the Trust's  Class B Shares;  printing of reports and
          prospectuses  for other than existing  shareholders;  and preparation,
          printing  and   distribution  of  sales   literature  and  advertising
          materials.

                                      -2-
<PAGE>

               (d)The  amount  of  compensation  paid  during  any one  year for
          personal and account  maintenance  services and expenses shall be .25%
          of the Trust's average daily net assets attributable to Class B Shares
          for such year. As partial  consideration  for personal services and/or
          account  maintenance  services  provided by PFD to the Class B Shares,
          PFD shall be  entitled to be paid any fees  payable  under this clause
          (d) with  respect  to Class B Shares  for  which no  dealer  of record
          exists, where less than all consideration has been paid to a dealer of
          record or where qualification standards have not been met.

               (e)Personal and account maintenance services for which PFD or any
          of its  affiliates,  banks or Dealers may be  compensated  pursuant to
          this Plan include, without limitation:  payments made to or on account
          of PFD or any of its affiliates,  banks, other brokers and dealers who
          are members of the NASD, or their officers,  sales representatives and
          employees,  who respond to inquiries  of, and furnish  assistance  to,
          shareholders  regarding  their  ownership  of Class B Shares  or their
          accounts or who provide similar services not otherwise  provided by or
          on behalf of the Trust.

               (f)PFD may impose  certain  deferred  sales charges in connection
          with the  repurchase of Class B Shares by the Trust and PFD may retain
          (or receive from the Trust as the case may be) all such deferred sales
          charges.

               (g)Appropriate  adjustments  to payments made pursuant to clauses
          (b) and (d) of this  paragraph 1 shall be made  whenever  necessary to
          ensure  that  no  payment  is  made  by the  Trust  in  excess  of the
          applicable maximum cap imposed on asset based,  front-end and deferred
          sales  charges by  subsection  (d) of Section 26 of Article III of the
          Rules of Fair Practice of the NASD.

         2.The Trust  understands  that  agreements  between PFD and Dealers may
provide  for payment of fees to Dealers in  connection  with the sale of Class B
Shares and the provision of services to  shareholders  of the Trust.  Nothing in
this Class B Plan shall be construed as requiring  the Trust to make any payment
to any  Dealer  or to have any  obligations  to any  Dealer in  connection  with
services as a dealer of the Class B Shares.  PFD shall agree and undertake  that
any  agreement  entered into between PFD and any Dealer shall  provide that such
Dealer shall look solely to PFD for


                                      -3-
<PAGE>

compensation for its services  thereunder and that in no event shall such Dealer
seek any payment from the Trust.

         3.Nothing herein contained shall be deemed to require the Trust to take
any  action  contrary  to its  Declaration  of Trust,  as it may be  amended  or
restated from time to time, or By-Laws or any applicable statutory or regulatory
requirement  to which it is  subject  or by which it is bound,  or to relieve or
deprive the Trust's Board of Trustees of the  responsibility  for and control of
the conduct of the affairs of the Trust.

         4.This  Class B Plan shall  become  effective  upon  approval  by (i) a
"majority of the outstanding  voting securities" of Class B of the Trust, (ii) a
vote of the Board of  Trustees,  and (iii) a vote of a majority of the  Trustees
who are not "interested persons" of the Trust and who have no direct or indirect
financial  interest in the  operation  of the Class B Plan or in any  agreements
related to the Class B Plan (the "Qualified Trustees"),  such votes with respect
to (ii) and (iii) above to be cast in person at a meeting called for the purpose
of voting on this Class B Plan.

         5.This Class B Plan will remain in effect  indefinitely,  provided that
such continuance is "specifically  approved at least annually" by a vote of both
a  majority  of the  Trustees  of the  Trust  and a  majority  of the  Qualified
Trustees.  If such  annual  approval  is not  obtained,  this Class B Plan shall
expire on                  , 1997.

         6.This  Class  B Plan  may be  amended  at any  time  by the  Board  of
Trustees,  provided  that  this  Class B Plan  may not be  amended  to  increase
materially the limitations on the annual  percentage of average net assets which
may be expended  hereunder without the approval of holders of a "majority of the
outstanding voting securities" of Class B of the Trust and may not be materially
amended in any case  without a vote of a majority of both the  Trustees  and the
Qualified Trustees. This Class B Plan may be terminated at any time by a vote of
a majority of the Qualified  Trustees or by a vote of the holders of a "majority
of the outstanding voting securities" of Class B of the Trust.

         7.The Trust and PFD shall provide to the Trust's Board of Trustees, and
the Board of Trustees shall review, at least quarterly,  a written report of the
amounts  expended  under  this  Class B Plan and the  purposes  for  which  such
expenditures were made.

         8.While this Class B Plan is in effect, the selection and nomination of
Qualified  Trustees shall be committed to the discretion of the Trustees who are
not "interested persons" of the Trust.

                                      -4-
<PAGE>

         9.For  the  purposes  of this  Class B Plan,  the  terms  "assignment,"
"interested  persons,"  "majority  of the  outstanding  voting  securities"  and
"specifically approved at least annually" are used as defined in the 1940 Act.

         10.The  Trust  shall  preserve  copies of this  Class B Plan,  and each
agreement  related  hereto and each  report  referred  to in  Paragraph 7 hereof
(collectively,  the "Records"), for a period of not less than six (6) years from
the end of the fiscal year in which such  Records were made and, for a period of
two (2) years, each of such Records shall be kept in an easily accessible place.

         11.This Class B Plan shall be construed in accordance  with the laws of
The Commonwealth of Massachusetts and the applicable provisions of the 1940 Act.

         12.If any  provision of this Class B Plan shall be held or made invalid
by a court decision,  statute,  rule or otherwise,  the remainder of the Class B
Plan shall not be affected thereby.



                                      -5-



                        CLASS C SHARES DISTRIBUTION PLAN

                              PIONEER MID-CAP FUND


CLASS C SHARES  DISTRIBUTION  PLAN,  dated as of  February  1,  1996 of  PIONEER
MID-CAP FUND, a Delaware business trust (the "Trust").

                                   WITNESSETH

WHEREAS,  the  Trust  is  engaged  in  business  as  an  open-end,  diversified,
management investment company and is registered under the Investment Company Act
of 1940, as amended  (collectively  with the rules and  regulations  promulgated
thereunder, the "1940 Act");

WHEREAS,  the Trust  intends to distribute  shares of  beneficial  interest (the
"Class C Shares") of the Trust in accordance with Rule 12b-1  promulgated by the
Securities  and  Exchange  Commission  under the 1940 Act  ("Rule  12b-1"),  and
desires to adopt this Class C Shares distribution plan (the "Class C Plan") as a
plan of distribution pursuant to such Rule;

WHEREAS, the Trust desires that Pioneer Funds Distributor, Inc., a Massachusetts
corporation ("PFD"), provide certain distribution services for the Trust's Class
C Shares in connection with the Class C Plan;

WHEREAS,  the  Trust  has  entered  into an  underwriting  agreement  (in a form
approved by the Trust's  Board of  Trustees in a manner  specified  in such Rule
12b-1) with PFD,  whereby PFD  provides  facilities  and  personnel  and renders
services to the Trust in connection with the offering and  distribution of Class
C Shares (the "Underwriting Agreement");

WHEREAS,  the Trust  also  recognizes  and  agrees  that (a) PFD may  retain the
services of firms or individuals to act as dealers or wholesalers (collectively,
the "Dealers") of the Class C Shares in connection  with the offering of Class C
Shares,  (b) PFD may  compensate  any Dealer  that  sells  Class C Shares in the
manner and at the rate or rates to be set forth in an agreement  between PFD and
such Dealer and (c) PFD may make such  payments to the Dealers for  distribution
services  out of the fee  paid to PFD  hereunder,  any  deferred  sales  charges
imposed by PFD in connection with the repurchase of Class C shares,  its profits
or any other source available to it;
<PAGE>

WHEREAS,  the Trust  recognizes and agrees that PFD may impose certain  deferred
sales charges in connection  with the repurchase of Class C Shares by the Trust,
and PFD may retain  (or  receive  from the  Trust,  as the case may be) all such
deferred sales charges; and

WHEREAS,  the Board of Trustees of the Trust,  in considering  whether the Trust
should adopt and implement this Class C Plan, has evaluated such  information as
it deemed  necessary  to an  informed  determination  whether  this Class C Plan
should be adopted and implemented  and has considered such pertinent  factors as
it deemed  necessary to form the basis for a decision to use assets of the Trust
for such purposes, and has determined that there is a reasonable likelihood that
the adoption and  implementation of this Class C Plan will benefit the Trust and
its Class C shareholders;

NOW,  THEREFORE,  the Board of Trustees of the Trust hereby  adopts this Class C
Plan for the Trust as a plan of  distribution  of Class C Shares  in  accordance
with Rule 12b-1, on the following terms and conditions:

    1.         (a)The Trust is authorized to compensate PFD for (1) distribution
          services and (2) personal and account  maintenance  services performed
          and expenses  incurred by PFD in  connection  with the Trust's Class C
          Shares.  Such  compensation  shall be calculated and accrued daily and
          paid  monthly or at such other  intervals as the Board of Trustees may
          determine.

               (b)The  amount  of  compensation  paid  during  any one  year for
          distribution  services with respect to Class C Shares shall be .75% of
          the Trust's  average daily net assets  attributable  to Class C Shares
          for such year.

               (c)Distribution  services  and  expenses  for  which  PFD  may be
          compensated  pursuant  to  this  Plan  include,   without  limitation:
          compensation to and expenses (including allocable overhead, travel and
          telephone expenses) of (i) Dealers,  brokers and other dealers who are
          members  of the  National  Association  of  Securities  Dealers,  Inc.
          ("NASD") or their officers, sales representatives and employees,  (ii)
          PFD and any of its  affiliates and any of their  respective  officers,
          sales  representatives and employees,  (iii) banks and their officers,
          sales  representatives  and  employees,   who  engage  in  or  support
          distribution  of the Trust's  Class C Shares;  printing of reports and
          prospectuses  for other than existing  shareholders;  and preparation,
          printing  and   distribution  of  sales   literature  and  advertising
          materials.

                                      -2-
<PAGE>

               (d)The  amount  of  compensation  paid  during  any one  year for
          personal and account  maintenance  services and expenses shall be .25%
          of the Trust's average daily net assets attributable to Class C Shares
          for such year. As partial  consideration  for personal services and/or
          account  maintenance  services  provided by PFD to the Class C Shares,
          PFD shall be  entitled to be paid any fees  payable  under this clause
          (d) with  respect  to Class C shares  for  which no  dealer  of record
          exists, where less than all consideration has been paid to a dealer of
          record or where qualification standards have not been met.

               (e)Personal and account maintenance services for which PFD or any
          of its  affiliates,  banks or Dealers may be  compensated  pursuant to
          this Plan include, without limitation:  payments made to or on account
          of PFD or any of its affiliates,  banks, other brokers and dealers who
          are members of the NASD, or their officers,  sales representatives and
          employees,  who respond to inquiries  of, and furnish  assistance  to,
          shareholders  regarding  their  ownership  of Class C Shares  or their
          accounts or who provide similar services not otherwise  provided by or
          on behalf of the Trust.

               (f)PFD may impose  certain  deferred  sales charges in connection
          with the  repurchase of Class C Shares by the Trust and PFD may retain
          (or receive from the Trust as the case may be) all such deferred sales
          charges.

               (g)Appropriate  adjustments  to payments made pursuant to clauses
          (b) and (d) of this  paragraph 1 shall be made  whenever  necessary to
          ensure  that  no  payment  is  made  by the  Trust  in  excess  of the
          applicable maximum cap imposed on asset based,  front-end and deferred
          sales  charges by  subsection  (d) of Section 26 of Article III of the
          Rules of Fair Practice of the NASD.

         2.The Trust  understands  that  agreements  between PFD and Dealers may
provide  for payment of fees to Dealers in  connection  with the sale of Class C
Shares and the provision of services to  shareholders  of the Trust.  Nothing in
this Class C Plan shall be construed as requiring  the Trust to make any payment
to any  Dealer  or to have any  obligations  to any  Dealer in  connection  with
services as a dealer of the Class C Shares.  PFD shall agree and undertake  that
any  agreement  entered into between PFD and any Dealer shall  provide that such
Dealer shall look solely to PFD for 


                                      -3-
<PAGE>

compensation for its services  thereunder and that in no event shall such Dealer
seek any payment from the Trust.

         3.Nothing herein contained shall be deemed to require the Trust to take
any  action  contrary  to its  Declaration  of Trust,  as it may be  amended  or
restated from time to time, or By-Laws or any applicable statutory or regulatory
requirement  to which it is  subject  or by which it is bound,  or to relieve or
deprive the Trust's Board of Trustees of the  responsibility  for and control of
the conduct of the affairs of the Trust.

         4.This  Class C Plan shall  become  effective  upon  approval  by (i) a
"majority of the outstanding  voting securities" of Class C of the Trust, (ii) a
vote of the Board of  Trustees,  and (iii) a vote of a majority of the  Trustees
who are not "interested persons" of the Trust and who have no direct or indirect
financial  interest in the  operation  of the Class C Plan or in any  agreements
related to the Class C Plan (the "Qualified Trustees"),  such votes with respect
to (ii) and (iii) above to be cast in person at a meeting called for the purpose
of voting on this Class C Plan.

         5.This Class C Plan will remain in effect  indefinitely,  provided that
such continuance is "specifically  approved at least annually" by a vote of both
a  majority  of the  Trustees  of the  Trust  and a  majority  of the  Qualified
Trustees.  If such  annual  approval  is not  obtained,  this Class C Plan shall
expire on ________ __, 1997.

         6.This  Class  C Plan  may be  amended  at any  time  by the  Board  of
Trustees,  provided  that  this  Class C Plan  may not be  amended  to  increase
materially the limitations on the annual  percentage of average net assets which
may be expended  hereunder without the approval of holders of a "majority of the
outstanding voting securities" of Class C of the Trust and may not be materially
amended in any case  without a vote of a majority of both the  Trustees  and the
Qualified Trustees. This Class C Plan may be terminated at any time by a vote of
a majority of the Qualified  Trustees or by a vote of the holders of a "majority
of the outstanding voting securities" of Class C of the Trust.

         7.The Trust and PFD shall provide to the Trust's Board of Trustees, and
the Board of Trustees shall review, at least quarterly,  a written report of the
amounts  expended  under  this  Class C Plan and the  purposes  for  which  such
expenditures were made.

         8.While this Class C Plan is in effect, the selection and nomination of
Qualified  Trustees shall be committed to the discretion of the Trustees who are
not "interested persons" of the Trust.

                                      -4-
<PAGE>

         9.For  the  purposes  of this  Class C Plan,  the  terms  "assignment,"
"interested  persons,"  "majority  of the  outstanding  voting  securities"  and
"specifically approved at least annually" are used as defined in the 1940 Act.

         10.The  Trust  shall  preserve  copies of this  Class C Plan,  and each
agreement  related  hereto and each  report  referred  to in  Paragraph 7 hereof
(collectively,  the "Records"), for a period of not less than six (6) years from
the end of the fiscal year in which such  Records were made and, for a period of
two (2) years, each of such Records shall be kept in an easily accessible place.

         11.This Class C Plan shall be construed in accordance  with the laws of
The Commonwealth of Massachusetts and the applicable provisions of the 1940 Act.

         12.If any  provision of this Class C Plan shall be held or made invalid
by a court decision,  statute,  rule or otherwise,  the remainder of the Class C
Plan shall not be affected thereby.



                                      -5-

[ARTICLE] 6
[CIK] 0000706155
[NAME] PIONEER THREE
[MULTIPLIER] 1,000
[PERIOD-TYPE]                   YEAR
[FISCAL-YEAR-END]                          SEP-30-1995
[PERIOD-END]                               SEP-30-1995
[INVESTMENTS-AT-COST]                           794776
[INVESTMENTS-AT-VALUE]                         1086537
[RECEIVABLES]                                     3261
[ASSETS-OTHER]                                      32
[OTHER-ITEMS-ASSETS]                                 0
[TOTAL-ASSETS]                                 1089830
[PAYABLE-FOR-SECURITIES]                          6072
[SENIOR-LONG-TERM-DEBT]                              0
[OTHER-ITEMS-LIABILITIES]                         1604
[TOTAL-LIABILITIES]                               7676
[SENIOR-EQUITY]                                      0
[PAID-IN-CAPITAL-COMMON]                        712460
[SHARES-COMMON-STOCK]                            50391
[SHARES-COMMON-PRIOR]                            51071
[ACCUMULATED-NII-CURRENT]                         6320
[OVERDISTRIBUTION-NII]                               0
[ACCUMULATED-NET-GAINS]                          71679
[OVERDISTRIBUTION-GAINS]                             0
[ACCUM-APPREC-OR-DEPREC]                        291695
[NET-ASSETS]                                   1082154
[DIVIDEND-INCOME]                                17273
[INTEREST-INCOME]                                 2593
[OTHER-INCOME]                                     750
[EXPENSES-NET]                                  (8605)
[NET-INVESTMENT-INCOME]                          12011
[REALIZED-GAINS-CURRENT]                         76657
[APPREC-INCREASE-CURRENT]                        66524
[NET-CHANGE-FROM-OPS]                           155192
[EQUALIZATION]                                       0
[DISTRIBUTIONS-OF-INCOME]                       (11708)
[DISTRIBUTIONS-OF-GAINS]                        (57659)
[DISTRIBUTIONS-OTHER]                                0
[NUMBER-OF-SHARES-SOLD]                           4235
[NUMBER-OF-SHARES-REDEEMED]                       8669
[SHARES-REINVESTED]                               3754
[NET-CHANGE-IN-ASSETS]                           64921
[ACCUMULATED-NII-PRIOR]                              0
[ACCUMULATED-GAINS-PRIOR]                        61071
[OVERDISTRIB-NII-PRIOR]                              0
[OVERDIST-NET-GAINS-PRIOR]                           0
[GROSS-ADVISORY-FEES]                             4701
[INTEREST-EXPENSE]                                   0
[GROSS-EXPENSE]                                   8675
[AVERAGE-NET-ASSETS]                           1035675
[PER-SHARE-NAV-BEGIN]                            19.92
[PER-SHARE-NII]                                   0.24
[PER-SHARE-GAIN-APPREC]                           2.70
[PER-SHARE-DIVIDEND]                              0.23
[PER-SHARE-DISTRIBUTIONS]                         1.15
[RETURNS-OF-CAPITAL]                                 0
[PER-SHARE-NAV-END]                              21.48
[EXPENSE-RATIO]                                   0.85
[AVG-DEBT-OUTSTANDING]                               0
[AVG-DEBT-PER-SHARE]                                 0


                              PIONEER MID-CAP FUND

                                  on behalf of

                              PIONEER MID-CAP FUND

                   Multiple Class Plan Pursuant to Rule 18f-3

                Class A Shares, Class B Shares and Class C Shares

                                February 1, 1996


         Each class of shares of Pioneer Mid-Cap Fund (the "Fund"),  a series of
Pioneer  Mid-Cap  Fund (the  "Trust"),  will have the same  relative  rights and
privileges and be subject to the same sales charges,  fees and expenses,  except
as set forth below. The Board of Trustees may determine in the future that other
distribution   arrangements,   allocations  of  expenses  (whether  ordinary  or
extraordinary)  or services to be provided to a class of shares are  appropriate
and amend this Plan  accordingly  without the  approval of  shareholders  of any
class.  Except as set forth in the Fund's  prospectus,  shares may be  exchanged
only for shares of the same class of another Pioneer mutual fund.

         Article I. Class A Shares

         Class A Shares are sold at net asset  value and  subject to the initial
sales charge  schedule or contingent  deferred sales charge ("CDSC") and minimum
purchase  requirements  as set forth in the  Fund's  prospectus.  Class A Shares
shall be entitled to the shareholder services set forth from time to time in the
Fund's prospectus with respect to Class A Shares.  Class A Shares are subject to
fees calculated as a stated percentage of the net assets attributable to Class A
shares  under the Fund's  Class A Rule 12b-1  Distribution  Plan as set forth in
such  Distribution  Plan. The Class A Shareholders have exclusive voting rights,
if any,  with  respect to the Class A Rule  12b-1  Distribution  Plan.  Transfer
agency fees are allocated to Class A Shares on a per account basis except to the
extent,  if any, such an allocation  would cause the Fund to fail to satisfy any
requirement  necessary  to obtain or rely on a private  letter  ruling  from the
Internal Revenue Service ("IRS") relating to the issuance of multiple classes of
shares.  Class A shares  shall  bear the  costs  and  expenses  associated  with
conducting a shareholder meeting for matters relating to Class A shares.

         Article II. Class B Shares

         Class B Shares  are sold at net  asset  value  per  share  without  the
imposition of an initial sales charge. However, Class B 

<PAGE>

shares redeemed  within a specified  number of years of purchase will be subject
to a CDSC as set forth in the Fund's prospectus. Class B Shares are sold subject
to the minimum purchase requirements set forth in the Fund's prospectus. Class B
Shares shall be entitled to the shareholder services set forth from time to time
in the Fund's  prospectus  with  respect  to Class B Shares.  Class B Shares are
subject to fees calculated as a stated percentage of the net assets attributable
to Class B shares under the Class B Rule 12b-1 Distribution Plan as set forth in
such  Distribution  Plan.  The Class B  Shareholders  of the Fund have exclusive
voting  rights,  if  any,  with  respect  to  the  Fund's  Class  B  Rule  12b-1
Distribution Plan. Transfer agency fees are allocated to Class B Shares on a per
account basis except to the extent,  if any, such an allocation  would cause the
Fund to fail to satisfy any requirement necessary to obtain or rely on a private
letter  ruling  from the IRS  relating to the  issuance  of multiple  classes of
shares.  Class B shares  shall  bear the  costs  and  expenses  associated  with
conducting a shareholder meeting for matters relating to Class B shares.

         Class B Shares will automatically convert to Class A Shares of the Fund
at the end of a specified  number of years after the  initial  purchase  date of
Class B shares,  except as provided in the Fund's  prospectus.  Such  conversion
will occur at the relative  net asset value per share of each class  without the
imposition of any sales charge,  fee or other charge.  The conversion of Class B
Shares  to  Class  A  Shares  may be  suspended  if it is  determined  that  the
conversion  constitutes or is likely to constitute a taxable event under federal
income tax law.

         The  initial  purchase  date for Class B shares  acquired  through  (i)
reinvestment  of  dividends  on Class B Shares  or (ii)  exchange  from  another
Pioneer  mutual fund will be deemed to be the date on which the original Class B
shares were purchased.

         Article III. Class C Shares

         Class C Shares  are sold at net  asset  value  per  share  without  the
imposition of an initial sales charge.  However,  Class C shares redeemed within
one year of  purchase  will be  subject  to a CDSC as set  forth  in the  Fund's
prospectus. Class C Shares are sold subject to the minimum purchase requirements
set forth in the Fund's  prospectus.  Class C Shares  shall be  entitled  to the
shareholder  services set forth from time to time in the Fund's  prospectus with
respect to Class C Shares.  Class C Shares are subject to fees  calculated  as a
stated  percentage  of the net assets  attributable  to Class C shares under the
Class C Rule 12b-1 Distribution Plan as set forth in such Distribution Plan. The
Class C  Shareholders  of the Fund have exclusive  voting  rights,  if any, with
respect to the Fund's Class C Rule 12b-1 Distribution Plan. Transfer agency fees
are allocated to Class C Shares on a


                                       2
<PAGE>

per account basis except to the extent,  if any, such an allocation  would cause
the Fund to fail to satisfy  any  requirement  necessary  to obtain or rely on a
private letter ruling from the IRS relating to the issuance of multiple  classes
of shares.  Class C shares  shall bear the costs and  expenses  associated  with
conducting a shareholder meeting for matters relating to Class C shares.

         The  initial  purchase  date for Class C shares  acquired  through  (i)
reinvestment  of  dividends  on Class C Shares  or (ii)  exchange  from  another
Pioneer  mutual fund will be deemed to be the date on which the original Class C
shares were purchased.

         Article IV. Approval by Board of Trustees

         This Plan shall not take effect until it has been  approved by the vote
of a  majority  (or  whatever  greater  percentage  may,  from time to time,  be
required under Rule 18f-3 under the  Investment  Company Act of 1940, as amended
(the "Act")) of (a) all of the Trustees of the Trust, on behalf of the Fund, and
(b) those of the Trustees who are not "interested persons" of the Trust, as such
term may be from time to time defined under the Act.

         Article V. Amendments

         No  material  amendment  to the Plan  shall be  effective  unless it is
approved by the Board of Trustees in the same manner as is provided for approval
of this Plan in Article IV.



                                       3


                                POWER OF ATTORNEY
                             Dated February 1, 1996

         We, the  undersigned  Trustees  of  Pioneer  Mid-Cap  Fund,  a Delaware
business trust, do hereby severally  constitute and appoint John F. Cogan,  Jr.,
David D. Tripple, and Joseph P. Barri, and each of them acting singly, to be our
true, sufficient and lawful attorneys, with full power to each of them, and each
of them acting singly,  to sign for each of us, in the name of each of us and in
the capacity as trustee, any and all amendments to the Registration Statement on
Form N-1A to be filed by Pioneer  Mid-Cap Fund under the Investment  Company Act
of 1940, as amended (the "1940 Act"),  and under the  Securities Act of 1933, as
amended  (the  "1933  Act"),  with  respect  to the  offering  of its  shares of
beneficial interest and any and all other documents and papers relating thereto,
and  generally  to do all such things in the name of each of us and on behalf of
each of us in the capacity as trustee to enable  Pioneer  Mid-Cap Fund to comply
with the 1940 Act and the 1933 Act, and all  requirements  of the Securities and
Exchange Commission thereunder, hereby ratifying and confirming the signature of
each of us as it may be signed by said  attorneys or each of them to any and all
amendments to said Registration Statement.

         IN WITNESS WHEREOF,  we have hereunder set our hands on this Instrument
as of the date first written above.




/s/ John W. Kendrick                   /s/ Marguerite A. Piret
John W. Kendrick, Trustee              Marguerite A. Piret, Trustee




/s/ Richard H. Edgahl, M.D.            /s/ Stephen K. West
Richard H. Egdahl, M.D.,               Stephen K. West, Trustee
Trustee



/s/ Margaret B.W. Graham               /s/ John Winthrop
Margaret B.W. Graham, Trustee          John Winthrop, Trustee



/s/John F. Cogan, Jr.                  /s/David D. Tripple
John F. Cogan, Jr., Chairman           David D. Tripple, Trustee
of the Board, President and            and Executive Vice President
Principal Executive Officer



/s/ William H. Keough
William H. Keough, Chief
Financial Officer, Treasurer
(Principal Financial and
Accounting Officer)



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