HANCOCK JOHN SOVEREIGN BOND FUND
497, 1995-06-02
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John Hancock 
Sovereign 
Bond Fund 
Class A and Class B Shares 
Prospectus 
May 1, 1995 
    

TABLE OF CONTENTS 
<TABLE>
<CAPTION>
                                                     Page 
<S>                                                   <C>
Expense Information                                    2 
The Fund's Financial Highlights                        3 
Investment Objective and Policies                      5 
Organization and Management of the Fund                9 
Alternative Purchase Arrangements                     10 
The Fund's Expenses                                   11 
Dividends and Taxes                                   12 
Performance                                           13 
How to Buy Shares                                     14 
Share Price                                           15 
How to Redeem Shares                                  20 
Additional Services and Programs                      22 
Institutional Investors                               25 
Appendix                                              26 
</TABLE>

This Prospectus sets forth information about John Hancock Sovereign Bond Fund 
(the "Fund") a diversified fund, that you should know before investing. Please 
read and retain it for future reference. 

   
Additional information about the Fund has been filed with the Securities and 
Exchange Commission (the "SEC"). You can obtain a copy of the Fund's Statement 
of Additional Information, dated May 1, 1995, and incorporated by reference in 
this Prospectus, free of charge by writing or telephoning: John Hancock 
Investor Services Corporation, P.O. Box 9116, Boston, Massachusetts 02205-9116, 
1-800-225-5291, (1-800-554-6713 TDD). 
    

Shares of the Fund are not deposits or obligations of, or guaranteed or 
endorsed by, any bank, and the shares are not federally insured by the Federal 
Deposit Insurance Corporation, the Federal Reserve Board, or any other agency. 

   
THE FUND MAY INVEST UP TO 25% OF ITS ASSETS IN LOWER RATED BONDS, COMMONLY 
KNOWN AS "JUNK BONDS," THAT ENTAIL GREATER RISKS, INCLUDING DEFAULT RISKS, THAN 
THOSE FOUND IN HIGHER RATED SECURITIES. INVESTORS SHOULD CAREFULLY CONSIDER 
THESE RISKS BEFORE INVESTING. SEE "INVESTMENT OBJECTIVE AND POLICIES, P. 5." 
    

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

                                                                      2100S 6/95

<PAGE> 
EXPENSE INFORMATION 

   
The purpose of the following information is to help you understand the various 
fees and expenses that you will bear directly or indirectly, when you purchase 
Fund shares. The operating expenses included in the table and hypothetical 
example below are based on fees and expenses of the Fund's Class A and Class B 
shares for the fiscal year ended December 31, 1994, adjusted to reflect current 
fees and expenses. Actual fees and expenses in the future may be greater or 
less than those indicated. 
<TABLE>
<CAPTION>
                                Class A                     Class B 
                                Shares                       Shares 
<S>                            <C>
Shareholder Transaction 
  Expenses 
Maximum sales charge 
  imposed on purchases (as 
  a percentage of offering 
  price)                       4.50%                       None 
Maximum sales charge 
  imposed on reinvested 
  dividends                    None                        None 
Maximum deferred sales 
  charge                       None*                       5.00% 
Redemption fee+                None                        None 
Exchange fee                   None                        None 
Annual Fund Operating 
  Expenses (as a 
  percentage of average 
  net assets) 
Management fee                 0.50%                       0.50% 
12b-1 fee**                    0.30%                       1.00% 
Other expenses                 0.38%                       0.25% 
Total Fund operating 
  expenses                     1.18%                       1.75% 
</TABLE>

 *No sales charge is payable at the time of purchase on investments of $1 
  million or more, but a contingent deferred sales charge may be imposed on 
  these investments, as described under the caption "Share Price," in the event 
  of certain redemption transactions within one year of purchase. 
**The amount of the 12b-1 fee used to cover service expenses will be up to 
  0.25% of the Fund's average daily net assets, and the remaining portion will 
  be used to cover distribution expenses. See "The Fund's Expenses." 
 +Redemption by wire fee (currently $4.00) not included. 
    

<TABLE>
<CAPTION>
                       Example:                          1 Year     3 Years    5 Years    10 Years 
<S>                                                        <C>        <C>        <C>         <C>
You would pay the following expenses for the 
  indicated period of years on a hypothetical $1,000 
  investment, assuming 5% annual return: 
Class A Shares                                             $57        $83        $111        $189 
Class B Shares 
 -- Assuming complete redemption at end of period          $67        $85        $115        $191 
 -- Assuming no redemption                                 $17        $55        $ 95        $191 
</TABLE>

(This example should not be considered a representation of past or future 
expenses. Actual expenses may be greater or less than those shown.) 

The Fund's payment of a distribution fee may result in a long-term shareholder 
indirectly paying more than the economic equivalent of the maximum front-end 
sales charge permitted under the National Association of Securities Dealers 
Rules of Fair Practice. 

The management and 12b-1 fees referred to above are more fully explained in 
this Prospectus under the caption "The Fund's Expenses" and in the Statement of 
Additional Information under the captions "Investment Advisory and Other 
Services" and "Distribution Contract." 

                                        2 
<PAGE> 
THE FUND'S FINANCIAL HIGHLIGHTS 

   
The following table of Financial Highlights has been audited by Ernst & Young 
LLP, the Fund's independent auditors, whose unqualified report is included in 
the Fund's 1994 Annual Report and is included in the Statement of Additional 
Information. Further information about the performance of the Fund is contained 
in the Fund's Annual Report to Shareholders, that may be obtained free of 
charge by writing or telephoning John Hancock Investor Services Corporation 
("Investor Services") at the address or telephone number listed on the front 
page of this Prospectus. 
    

   
Selected data for each class of shares outstanding throughout each period 
indicated is as follows: 
<TABLE>
<CAPTION>
                                                                            YEAR ENDED DECEMBER 31, 
                                                            1994        1993        1992         1991        1990 
<S>                                                      <C>          <C>         <C>         <C>          <C>
CLASS A 
Per Share Operating Performance 
Net Asset Value, Beginning of Period                     $   15.53    $   15.29   $   15.31   $   14.33    $   14.77 
Net Investment Income                                         1.12         1.14        1.20        1.29         1.32 
Net Realized & Unrealized Gain (Loss) on Investments 
  and Financial Futures Contracts                            (1.55)        0.62       (0.01)       0.98        (0.40) 
  Total from Investment Operations                           (0.43)        1.76        1.19        2.27         0.92 
Less Distributions: 
Dividends from Net Investment Income                         (1.12)       (1.14)      (1.21)      (1.29)       (1.35) 
Distributions to Shareholders from Capital Paid-In           --           --          --          --           (0.01) 
Distributions from Net Realized Gain on Investments 
  Sold and Financial Futures Contracts                       (0.08)       (0.38)      --          --           -- 
  Total Distributions                                        (1.20)       (1.52)      (1.21)      (1.29)       (1.36) 
Net Asset Value, End of Period                           $   13.90    $   15.53   $   15.29   $   15.31    $   14.33 
Total Investment Return at Net Asset Value                   (2.75%)      11.80%       8.08%      16.59%        6.71% 
Ratios and Supplemental Data 
Net Assets, End of period (000,000's omitted)               $1,326       $1,506      $1,386      $1,250       $1,103 
Ratio of Expenses to Average Net Assets                       1.26%        1.41%       1.44%       1.27%        1.31% 
Ratio of Net Investment Income to Average Net Assets          7.74%        7.18%       7.89%       8.81%        9.18% 
Portfolio Turnover Rate                                         85%         107%         87%         90%          92% 
</TABLE>
    

<TABLE>
<CAPTION>
                                                                            YEAR ENDED DECEMBER 31, 
                                                            1989        1988        1987         1986        1985 
<S>                                                      <C>          <C>         <C>         <C>          <C>
CLASS A 
Per Share Operating Performance 
Net Asset Value, Beginning of Period                     $   14.51    $   14.53   $   15.89   $   15.85    $   14.36 
Net Investment Income                                         1.43         1.44        1.40        1.55         1.62 
Net Realized & Unrealized Gain (Loss) on Investments 
  and Financial Futures Contracts                             0.27        (0.06)      (1.17)       0.52         1.40 
  Total from Investment Operations                            1.70         1.38        0.23        2.07         3.02 
Less Distributions: 
Dividends from Net Investment Income                         (1.44)       (1.40)      (1.53)      (1.53)       (1.53) 
Distributions to Shareholders from Capital Paid-In           --           --          --          --           -- 
Distributions from Net Realized Gain on Investments 
  Sold and Financial Futures Contracts                       --           --          (0.06)      (0.50)       -- 
  Total Distributions                                        (1.44)       (1.40)      (1.59)      (2.03)       (1.53) 
Net Asset Value, End of Period                           $   14.77    $   14.51   $   14.53   $   15.89    $   15.85 
Total Investment Return at Net Asset Value                   12.13%        9.82%       1.58%      13.67%       22.35% 
Ratios and Supplemental Data 
Net Assets, End of period (000,000's omitted)               $1,110       $1,104      $1,095      $1,152       $1,016 
Ratio of Expenses to Average Net Assets                       0.80%        0.82%       0.82%       0.72%        0.79% 
Ratio of Net Investment Income to Average Net Assets          9.68%        9.77%       9.32%       9.65%       10.95% 
Portfolio Turnover Rate                                         64%          66%        159%        163%         100% 
</TABLE>

                                        3 
<PAGE> 
THE FUND'S FINANCIAL HIGHLIGHTS (continued) 
<TABLE>
<CAPTION>
                                                                              1994          1993 
<S>                                                                       <C>            <C>
CLASS B(a) 
Per Share Operating Performance 
Net Asset Value, Beginning of Period                                      $    15.52     $   15.90 (b) 
Net Investment Income                                                           1.04          0.11 
Net Realized & Unrealized Loss on Investments and Financial Futures 
  Contracts                                                                    (1.54)       -- 
  Total from Investment Operations                                             (0.50)         0.11 
Less Distributions: 
Dividends from Net Investment Income                                           (1.04)        (0.11) 
Distributions from Net Realized Gain on Investments Sold and Financial 
  Futures Contracts                                                            (0.08)        (0.38) 
  Total Distributions                                                          (1.12)        (0.49) 
Net Asset Value, End of Period                                            $    13.90     $   15.52 
Total Investment Return at Net Asset Value                                     (3.13%)        0.90% 
Ratios and Supplemental Data 
Net Assets, End of period (000's omitted)                                    $40,299        $4,125 
Ratio of Expenses to Average Net Assets                                         1.78%         1.63%* 
Ratio of Net Investment Income to Average Net Assets                            7.30%         0.57%* 
Portfolio Turnover Rate                                                           85%          107% 
</TABLE>

<TABLE>
<CAPTION>
                                                                              1994          1993 
<S>                                                                        <C>            <C>
CLASS C(c) 
Per Share Operating Performance 
Net Asset Value, Beginning of Period                                       $   15.52      $ 15.86 (b) 
Net Investment Income                                                           1.19         0.81 
Net Realized & Unrealized Gain (Loss) on Investments and Financial 
  Futures Contracts                                                            (1.54)        0.04 
  Total from Investment Operations                                             (0.35)        0.85 
Less Distributions: 
Dividends from Net Investment Income                                           (1.19)       (0.81) 
Distributions from Net Realized Gain on Investments Sold and Financial 
  Futures Contracts                                                            (0.08)       (0.38) 
  Total Distributions                                                          (1.27)       (1.19) 
Net Asset Value, End of Period                                             $   13.90      $ 15.52 
Total Investment Return at Net Asset Value                                     (2.19%)       5.45% 
Ratios and Supplemental Data 
Net Assets, End of period (000's omitted)                                     $1,670         $867 
Ratio of Expenses to Average Net Assets                                         0.73%        0.90%* 
Ratio of Net Investment Income to Average Net Assets                            8.28%        4.90%* 
Portfolio Turnover Rate                                                           85%         107% 
</TABLE>

* On an annualized basis. 
(a) Class B shares commenced operations on November 23, 1993. 
(b) Initial price to commence operations. 
(c) Class C shares commenced operations on May 7, 1993. 
(d) Class C shares were no longer offered for sale after March 31, 1995. 

                                        4 
<PAGE> 
INVESTMENT OBJECTIVE AND POLICIES 

The Fund's investment objective is to generate a high level of current income 
consistent with prudent investment risk. 

The Fund's investment objective is to generate a high level of current income, 
consistent with prudent investment risk, through investment in a diversified 
portfolio of freely marketable debt securities. The Fund's Adviser seeks high 
current income consistent with the moderate level of risk associated with a 
portfolio consisting primarily of investment grade debt securities. 

   
Under normal market conditions, at least 65% of the value of the Fund's assets 
will be in bonds and/or debentures. In addition, the Fund contemplates that at 
least 75% of the value of its total investments in debt securities (other than 
commercial paper) will be represented by those securities that have, at the 
time of purchase, a rating within the four highest grades as determined by 
Moody's Investors Service, Inc. ("Moody's") (Aaa, Aa, A or Baa) or Standard & 
Poor's Ratings Group ("S&P") (AAA, AA, A, or BBB) and debt securities of banks, 
the U.S. Government and its agencies or instrumentalities and other issuers 
which, although not rated as a matter of policy by either Moody's or S&P, are 
considered by the Fund to have investment quality comparable to securities 
receiving ratings within the four highest grades. Debt securities rated Baa or 
BBB are considered medium-grade obligations with speculative characteristics 
and adverse economic conditions or changing circumstances may weaken their 
issuers' capacity to pay interest and repay principal. The Fund will diversify 
its investments among a number of industry groups without concentration in any 
particular industry. The Fund's investments, and consequently its net asset 
value, will be subject to the market fluctuations and risks inherent in all 
securities. There is no assurance that the Fund will achieve its investment 
objective. 
    

   
If you redeem shares of the Fund, you may be able to reinvest all or part of 
the proceeds in shares of the Fund or another John Hancock fund without paying 
an additional sales charge. 
    

   
Securities of domestic and foreign issuers. The Fund may invest in U.S. dollar- 
denominated securities of foreign and United States issuers that are issued in 
or outside of the U.S. Foreign companies may not be subject to accounting 
standards and government supervision comparable to U.S. companies, and there is 
often less publicly available information about their operations. Foreign 
markets generally provide less liquidity than U.S. markets (and thus 
potentially greater price volatility) and typically provide fewer regulatory 
protections for investors. Foreign securities can also be affected by political 
or financial instability abroad. It is anticipated that under normal 
conditions, the Fund will not invest more than 25% of its total assets in 
foreign securities (excluding U.S. dollar-denominated Canadian securities). 
    

   
Mortgage-Backed and Derivative Securities 
    

   
Mortgage-backed securities represent participation interests in pools of 
adjustable and fixed mortgage loans which are guaranteed by agencies or 
instrumentalities of the U.S. Government. Unlike conventional debt obligations, 
mortgage-backed securities provide monthly payments derived from the monthly 
interest and principal payments (including any prepayments) made by the 
individual borrowers on the pooled mortgage loans. The mortgage loans 
underlying mortgage-backed securities are generally subject to a greater rate 
of principal prepayments in a declining interest rate environment and to a 
lesser rate of principal prepayments in an increasing interest rate 
environment. Under certain interest and prepayment rate scenarios, the Fund may 
fail to recover the full amount of its investment in mortgage-backed securities 
    

                                        5 
<PAGE> 
   
notwithstanding any direct or indirect governmental or agency guarantee. Since 
faster than expected prepayments must usually be invested in lower yielding 
securities, mortgage-backed securities are less effective than conventional 
bonds in "locking in" a specified interest rate. In a rising interest rate 
environment, a declining prepayment rate may extend the average life of many 
mortgage-backed securities. Extending the average life of a mortgage-backed 
security increases the risk of depreciation due to future increases in market 
interest rates. 
    

   
The Fund's investments in mortgage-backed securities may include conventional 
mortgage passthrough securities and certain classes of multiple class 
collateralized mortgage obligations ("CMOs"). In order to reduce the risk of 
prepayment for investors, CMOs are issued in multiple classes, each having 
different maturities, interest rates, payment schedules and allocations of 
principal and interest on the underlying mortgages. Senior CMO classes will 
typically have priority over residual CMO classes as to the receipt of 
principal and/or interest payments on the underlying mortgages. The CMO classes 
in which the Fund may invest include but are not limited to sequential and 
parallel pay CMOs, including planned amortization class ("PAC") and target 
amortization class ("TAC") securities. 
    

   
Risks of Mortgage-Backed Securities. Different types of mortgage-backed 
securities are subject to different combinations of prepayment, extension, 
interest rate and/or other market risks. Conventional mortgage passthrough 
securities and sequential pay CMOs are subject to all of these risks, but are 
typically not leveraged. PACs, TACs and other senior classes of sequential and 
parallel pay CMOs involve less exposure to prepayment, extension and interest 
rate risk than other mortgage-backed securities, provided that prepayment rates 
remain within expected prepayment ranges or "collars." 
    

The Fund may invest in structured debt obligations indexed to various financial 
assets or rates. 

   
Structured Securities. The Fund may invest in structured notes, bonds or 
debentures, the value of the principal of and/or interest on which is to be 
determined by reference to changes in the value of specific currencies, 
interest rates, commodities, indices or other financial indicators (the 
"Reference") or the relative change in two or more References. The interest 
rate or the principal amount payable upon maturity or redemption may be 
increased or decreased depending upon changes in the applicable Reference. The 
terms of the structured securities may provide that in certain circumstances no 
principal is due at maturity and, therefore, may result in the loss of the 
Fund's investment. Structured securities may be positively or negatively 
indexed, so that appreciation of the Reference may produce an increase or 
decrease in the interest rate or value of the security at maturity. In 
addition, the change in interest rate or the value of the security at maturity 
may be a multiple of the change in the value of the Reference. Consequently, 
structured securities entail a greater degree of market risk than other types 
of debt obligations. Structured securities may also be more volatile, less 
liquid and more difficult to accurately price than less complex fixed income 
investments. 
    

   
Futures and Option Contracts. The Fund may engage in transactions in futures 
contracts and options on futures contracts for hedging and speculative 
purposes. The Fund's ability to hedge successfully will depend on the ability 
of John Hancock Advisers, Inc. (the "Adviser") to predict accurately the future 
direction of interest rate changes, the degree of correlation between the 
futures and securities markets and other market factors. There is no assurance 
that a liquid market for futures and options will always exist. 
    


                                        6 
<PAGE> 
In addition, the Fund could be prevented from opening, or realizing the 
benefits of closing out, a futures or options position because of position 
limits or limits on daily price fluctuations imposed by an exchange. 

   
All of the Fund's futures contracts and options on futures contracts will be 
traded on a U.S. or foreign commodity exchange or board of trade. The Fund will 
not engage in a transaction in futures or options on futures for speculative 
purposes if, immediately thereafter, the sum of initial margin deposits and 
premiums required to establish speculative positions in futures contracts and 
options on futures exceeds 5% of the Fund's net assets. 
    

   
Lower-Rated Securities. The Fund may invest up to 25% of the value of its total 
assets in fixed income securities rated below Baa by Moody's, or below BBB by 
S&P, or in securities which are unrated. The Fund may invest in securities 
rated as low as Ca by Moody's or CC by S&P, which may indicate that the 
obligations are highly speculative and in default. Lower rated securities are 
generally referred to as junk bonds. See the Appendix attached to this 
Prospectus and the Statement of Additional Information, respectively, for the 
distribution of securities in the various ratings categories and a description 
of the characteristics of the categories. The Fund is not obligated to dispose 
of securities whose issuers subsequently are in default or which are downgraded 
below the above-stated ratings. The Fund may invest in unrated securities 
which, in the opinion of the Adviser, offer comparable yields and risks to 
those securities which are rated. 
    

Debt obligations rated in the lower ratings categories, or which are unrated, 
involve greater volatility of price and risk of loss of principal and income. 
In addition, lower ratings reflect a greater possibility of an adverse change 
in financial condition affecting the ability of the issuer to make payments of 
interest and principal. 

   
The market price and liquidity of lower rated fixed income securities generally 
respond to short-term economic, corporate and market developments to a greater 
extent than do higher rated securities. In the case of lower-rated securities, 
these developments are perceived to have a more direct relationship to the 
ability of an issuer of lower rated securities to meet its ongoing debt 
obligations. 
    

   
Reduced volume and liquidity in the high yield bond market, or the reduced 
availability of market quotations, will make it more difficult to dispose of 
the bonds and value accurately the Fund's assets. The reduced availability of 
reliable, objective data may increase the Fund's reliance on management's 
judgment in valuing the high yield bonds. To the extent that the Fund invests 
in these securities, the achievement of the Fund's objective will depend more 
on the Adviser's judgment and analysis than would otherwise be the case. In 
addition, the Fund's investments in high yield securities may be susceptible to 
adverse publicity and investor perceptions, whether or not the perceptions are 
justified by fundamental factors. In the past, economic downturns and increases 
in interest rates have caused a higher incidence of default by the issuers of 
lower-rated securities and may do so in the future, particularly with respect 
to highly leveraged issuers. The market prices of zero coupon and 
payment-in-kind bonds are affected to a greater extent by interest rate 
changes, and thereby tend to be more volatile than securities that pay interest 
periodically and in cash. Increasing 
    


                                        7 
<PAGE> 
   
rate note securities are typically refinanced by the issuers within a short 
period of time. The Fund accrues income on these securities for tax and 
accounting purposes, which is required to be distributed to shareholders. 
Because no cash is received while income accrues on these securities, the Fund 
may be forced to liquidate other investments to make the distributions. 
    

   
The Fund may acquire individual securities of any maturity and is not subject 
to any limits as to the average maturity of its overall portfolio. The longer 
the Fund's average portfolio maturity, the more the value of the portfolio and 
the net asset value of the Fund's shares will fluctuate in response to changes 
in interest rates. An increase in interest rates will generally reduce the 
value of the Fund's portfolio securities and the Fund's shares, while a decline 
in interest rates will generally increase their value. 
    

   
Restricted Securities. The Fund may purchase restricted securities, including 
those eligible for resale to "qualified institutional buyers" pursuant to Rule 
144A under the Securities Act of 1933 (the "Securities Act"). The Trustees will 
monitor the Fund's investments in these securities, focusing on certain 
factors, including valuation, liquidity and availability of information. 
Purchases of other restricted securities are subject to an investment 
restriction limiting all the Fund's illiquid securities to not more than 15% of 
its net assets. 
    

   
Lending of Securities. The Fund may lend portfolio securities to brokers, 
dealers, and financial institutions if the loan is collateralized by cash or 
U.S. Government securities according to applicable regulatory requirements. The 
Fund may reinvest any cash collateral in short-term securities. When the Fund 
lends portfolio securities, there is a risk that the borrower may fail to 
return the securities. As a result, the Fund may incur a loss or, in the event 
of the borrower's bankruptcy, may be delayed in or prevented from liquidating 
the collateral. It is a fundamental policy of the Fund not to lend portfolio 
securities having a total value exceeding 33-1/3% of its total assets. 
    

   
Repurchase Agreements, Forward Commitments and When-Issued Securities. The Fund 
may enter into repurchase agreements and may purchase securities on a forward 
or when-issued basis. In a repurchase agreement, the Fund buys a security 
subject to the right and obligation to sell it back at a higher price. These 
transactions must be fully collateralized at all times, but involve some credit 
risk to the Fund if the other party defaults on its obligation and the Fund is 
delayed in or prevented from liquidating the collateral. The Fund will 
segregate in a separate account cash or liquid, high grade debt securities 
equal in value to its forward commitments and when- issued securities. 
Purchasing securities for future delivery or on a when-issued basis may 
increase the Fund's overall investment exposure and involves a risk of loss if 
the value of the securities declines before the settlement date. 
    

   
Short-term Trading. Short-term trading means the purchase and subsequent sale 
of a security after it has been held for a relatively brief period of time. The 
Fund engages in short-term trading in response to changes in interest rates or 
other economic trends and developments, or to realize capital gain or improve 
income by taking advantage of yield disparities between various fixed-income 
securities. 
    
                                        8 
<PAGE> 
The Fund follows certain policies, which may help to reduce investment risk. 

   
Investment Restrictions. The Fund has adopted certain fundamental investment 
restrictions that are detailed in the Statement of Additional Information, 
where they are classified as fundamental or nonfundamental. The Fund's 
investment objective and those investment restrictions designated as 
fundamental may not be changed without shareholder approval. All other 
investment policies and restrictions, however, are nonfundamental and can be 
changed by a vote of the Trustees without shareholder approval. The Fund's 
portfolio turnover rates for recent years are shown in the section "The Fund's 
Financial Highlights." 
    

Brokers are chosen based on best price and execution. 

   
When choosing brokerage firms to carry out the Fund's transactions, the Adviser 
gives primary consideration to execution at the most favorable price, taking 
into account the broker's professional ability and quality of service. 
Consideration may also be given to the broker's sale of Fund shares. Pursuant 
to procedures established by the Trustees, the Adviser may place securities 
transactions with brokers affiliated with the Adviser. These brokers include 
Tucker Anthony Incorporated, John Hancock Distributors, Inc. and Sutro & 
Company, Inc. which are indirectly owned by John Hancock Mutual Life Insurance 
Company, which in turn indirectly owns the Adviser. 
    

ORGANIZATION AND MANAGEMENT OF THE FUND 

The Trustees elect officers and retain the investment adviser who is 
responsible for the day-to-day operations of the Fund, subject to the Trustees' 
policies and supervision. 

   
The Fund is a diversified open-end management investment company organized as a 
Maryland corporation in 1973 and reorganized as a Massachusetts business trust 
in 1984. The Fund has an unlimited number of authorized shares of beneficial 
interest. The Fund's Declaration of Trust permits the Trustees, without 
shareholder approval, to create and classify shares of beneficial interest into 
separate series of the Fund. As of the date of this Prospectus, the Trustees 
have not authorized the creation of any new series of the Fund. Additional 
series may be added in the future. The Trust's Declaration of Trust also 
permits the Trustees to classify and reclassify any series or portfolio of 
shares into one or more classes. Accordingly, the Trustees have authorized the 
issuance of three classes of the Fund, 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 and have equal rights as to voting, redemption, 
dividends and liquidation. However, each class bears different distribution and 
transfer agent fees, and Class A and Class B shareholders have exclusive voting 
rights with respect to their distribution plans. 
    

Shareholders have certain rights to remove Trustees. The Fund is not required 
and does not intend to hold annual shareholder meetings, although special 
meetings may be held for such purposes as electing or removing Trustees, 
changing fundamental investment restrictions or approving a management 
contract. The Fund, under certain circumstances, will assist in shareholder 
communications with other shareholders. 

John Hancock Advisers, Inc. advises investment companies having a total asset 
value of more than $13 billion. 

   
The Adviser was organized in 1968 and is a wholly-owned indirect subsidiary of 
the John Hancock Mutual Life Insurance Company, a financial services company. 
It provides the Fund, and other investment companies in the John Hancock group 
of funds, with investment research and portfolio management services. John 
Hancock Funds, Inc. ("John Hancock Funds") distributes shares for all of the 
John Hancock funds through selected broker-dealers ("Selling Brokers"). Certain 
Fund officers are also officers of the Adviser and John Hancock Funds. Pursuant 
to an order granted by the 
    

                                        9 
<PAGE> 
   
Securities and Exchange Commission, the Fund has adopted a deferred 
compensation plan for its independent Trustees which allows Trustees' fees to 
be invested by the Fund in other John Hancock funds. 
    

James Ho is a Senior Vice President and the portfolio manager of the Fund. Mr. 
Ho is assisted in the day-to-day management of the Fund's investment portfolio 
by a co-manager and a team of credit analysts. Mr. Ho also directs all taxable 
fixed-income investment management for the Adviser and has been associated with 
the Adviser since 1985. 

   
In order to avoid any conflict with portfolio trades for the Fund, the Adviser 
and the Fund have adopted extensive restrictions on personal securities trading 
by personnel of the Adviser and its affiliates. Some of these restrictions are: 
pre-clearance for all personal trades and a ban on the purchase of initial 
public offerings, as well as contributions to specified charities of profits on 
securities held for less than 91 days. These restrictions are a continuation of 
the basic principle that the interests of the Fund and its shareholders come 
first. 
    

ALTERNATIVE PURCHASE ARRANGEMENTS 

An alternative purchase plan allows you to choose the method of purchase that 
is best for you. 

   
You can purchase shares of the Fund at a price equal to their net asset value 
per share, plus a sales charge. At your election, this charge may be imposed 
either at the time of the purchase (see "Initial Sales Charge 
Alternative--Class A shares") or on a contingent deferred basis (see 
"Contingent Deferred Sales Charge Alternative--Class B shares"). If you do not 
specify on your account application the class of shares you are purchasing, it 
will be assumed that you are investing in Class A shares. 
    

Investments in Class A shares are subject to an initial sales charge. 

Class A Shares. If you elect to purchase Class A shares, you will incur an 
initial sales charge unless the amount of your purchase is $1 million or more. 
If you purchase $1 million or more of Class A shares you will not be subject to 
an initial sales charge, but you will incur a sales charge if you redeem your 
shares within one year of purchase. Class A shares are subject to ongoing 
distribution and service fees at a combined annual rate of up to 0.30% of the 
Fund's average daily net assets attributable to the Class A shares. Certain 
purchases of Class A shares qualify for reduced initial sales charges. See 
"Share Price--Qualifying for a Reduced Sales Charge." 

Investments in Class B shares are subject to a contingent deferred sales 
charge. 

   
Class B Shares. You will not incur a sales charge when you purchase Class B 
shares, but the shares are subject to a sales charge if you redeem them within 
six years of purchase (the "contingent deferred sales charge" or the "CDSC"). 
Class B shares are subject to ongoing distribution and service fees at a 
combined annual rate of up to 1.00% of the Fund's average daily net assets 
attributable to the Class B shares. Investing in Class B shares permits all of 
your dollars to work from the time you make your investment, but the higher 
ongoing distribution fee will cause these shares to have higher expenses than 
that of Class A shares. To the extent that any dividends are paid by the Fund, 
these higher expenses will also result in lower dividends than those paid on 
Class A shares. 
    

   
Class B shares are not available to full-service defined contribution plans 
administered by Investor Services or John Hancock Mutual Life Insurance Company 
that had more than 100 eligible employees at the inception of the Fund account. 
    


                                       10 
<PAGE> 
Factors to Consider in Choosing an Alternative 

You should consider which class of shares would be more beneficial for you. 

   
The alternative purchase arrangement allows you to choose the most beneficial 
way to buy shares given the amount of your purchase, the length of time you 
expect to hold your shares and other circumstances. You should consider 
whether, during the anticipated life of your Fund investment, the CDSC and the 
accumulated fees on Class B shares would be less than the initial sales charge 
and accumulated fees on Class A shares purchased at the same time; and to what 
extent this differential would be offset by the Class A shares' lower expenses. 
To help you make this determination, the table under the caption "Expense 
Information" on page 2 of this Prospectus gives examples of the charges 
applicable to each class of shares. Class A shares will normally be more 
beneficial if you qualify for a reduced sales charge. See "Share Price-- 
Qualifying for a Reduced Sales Charge". 
    

   
Class A shares are subject to lower distribution and service fees and, 
accordingly, pay correspondingly higher dividends per share, to the extent any 
dividends are paid. However, because initial sales charges are deducted at the 
time of purchase, you would not have all of your funds invested initially and, 
therefore, would initially own fewer shares. If you do not qualify for reduced 
initial sales charges and expect to maintain your investment for an extended 
period of time, you might consider purchasing Class A shares. This is because 
the accumulated distribution and service charges on Class B shares may exceed 
the initial sales charge and accumulated distribution and service charges on 
Class A shares during the life of your investment. 
    

   
Alternatively, you might determine that it is more advantageous to purchase 
Class B shares to have all your funds invested initially. However you will be 
subject to higher distribution fees and, for a six-year period, a CDSC. 
    

   
In the case of Class A shares, distribution expenses that John Hancock Funds 
incurs in connection with the sale of shares will be paid from the proceeds of 
the initial sales charge and the ongoing distribution and service fees. In the 
case of Class B shares, expenses will be paid from the proceeds of the ongoing 
distribution and service fees, as well as from the CDSC incurred upon 
redemption within six years of purchase. The purpose and function of the Class 
B shares' CDSC and ongoing distribution and service fees are the same as those 
of the Class A shares' initial sales charge and ongoing distribution and 
service fees. Sales personnel distributing the Fund's shares may receive 
different compensation for selling each class of shares. 
    

   
Dividends, if any, on Class A and Class B shares will be calculated in the same 
manner, at the same time and on the same day. They will also be in the same 
amount, except for differences resulting in each class bearing only its own 
distribution and service fees, shareholder meeting expenses and incremental 
transfer agency costs. See "Dividends and Taxes." 
    

THE FUND'S EXPENSES 

   
For managing its investment and business affairs, the Fund pays a fee to the 
Adviser which for the 1994 fiscal year, was 0.50% of the Fund's average daily 
net asset value. 
    
                                       11 

<PAGE> 
The Fund pays distribution and service fees for marketing and sales-related 
shareholder servicing. 

   
The Class A and Class B shareholders have adopted distribution plans (each a 
"Plan") pursuant to Rule 12b-1 under the Investment Company Act of 1940. Under 
these Plans, the Fund will pay distribution and service fees at an aggregate 
annual rate of 0.30% of the Class A shares' average daily net assets and an 
aggregate annual rate of 1.00% of the Class B shares' average daily net assets. 
In each case, up to 0.25% is for service expenses and the remaining amount is 
for distribution expenses. The distribution fees are used to reimburse John 
Hancock Funds for its distribution expenses, including but not limited to: (i) 
initial and ongoing sales compensation to Selling Brokers and others (including 
affiliates of John Hancock Funds) engaged in the sale of Fund shares; (ii) 
marketing, promotional and overhead expenses incurred in connection with the 
distribution of Fund shares; and (iii) with respect to Class B shares only, 
interest expenses on unreimbursed distribution expenses. The service fees will 
be used to compensate Selling Brokers for providing personal and account 
maintenance services to shareholders. In the event John Hancock Funds is not 
fully reimbursed for payments it makes or expenses it incurs under the Class A 
Plan, these expenses will not be carried beyond one year from the date they 
were incurred. These unreimbursed expenses under the Class B Plan will be 
carried forward together with interest on the balance of these unreimbursed 
expenses. For the fiscal year ended December 31, 1994 an aggregate of 
$1,752,030 of distribution expenses, or 7.14% of the average net assets of the 
Class B shares of the Fund, was not reimbursed or recovered by the John Hancock 
Funds through the receipt of deferred sales charges or 12b-1 fees in prior 
periods. 
    

   
Information on the Fund's total expenses is in the Fund's Financial Highlights 
section of this Prospectus. 
    

DIVIDENDS AND TAXES 

Dividends. Dividends from the Fund's net investment income are generally 
declared daily and distributed monthly. Capital gains, if any, are generally 
distributed annually. Dividends are reinvested in additional shares of your 
class unless you elect the option to receive them in cash. If you elect the 
cash option and the U.S. Postal Service cannot deliver your checks, your 
election will be converted to the reinvestment option. Because of the higher 
expenses associated with Class B shares, any dividend on these shares will be 
lower than on the Class A shares. See "Share Price." 

   
Taxation. Dividends from the Fund's net investment income and net short-term 
capital gains are taxable to you as ordinary income. Dividends from the Fund's 
net long- term capital gains are taxable as long-term capital gain. These 
dividends are taxable whether received in cash or reinvested in additional 
shares. Certain dividends paid in January of a given year, but they may be 
taxable as if you received them the previous December. The Fund will send you a 
statement by January 31 showing the tax status of the dividends you received 
for the prior year. 
    

   
The Fund has qualified and intends to continue to qualify as a regulated 
investment company under Subchapter M of the Internal Revenue Code of 1986, as 
amended (the "Code"). As a regulated investment company, the Fund will not be 
subject to Federal income tax on any net investment income and net realized 
capital gains that are distributed to its shareholders at least annually. When 
you redeem (sell) or exchange shares, you may realize a taxable gain or loss. 
    
                                       12 
<PAGE> 
   
On the account application, you must certify that your social security or other 
taxpayer identification number is correct and that you are not subject to 
backup withholding of Federal income tax. If you do not provide this 
information, or are otherwise subject to backup withholding, the Fund may be 
required to withhold 31% of your dividends and the proceeds of redemptions and 
exchanges. 
    

   
In addition to Federal taxes, you may be subject to state, local or foreign 
taxes with respect to your investment in and distributions from the Fund. In 
some states, a portion of the Fund's dividends that represents interest 
received by the Fund on direct U.S. government obligations may be exempt from 
tax. Non-U.S. shareholders and tax-exempt shareholders are subject to different 
tax treatment not described above. You should consult your tax adviser for 
specific advice. 
    

PERFORMANCE 

The Fund may advertise its yield and total return. 

Yield reflects the Fund's rate of income on portfolio investments as a 
percentage of its share price. Yield is computed by annualizing the result of 
dividing the net investment income per share over a 30 day period by the 
maximum offering price per share on the last day of that period. Yield is 
calculated according to accounting methods that are standardized for all stock 
and bond funds. Because yield accounting methods differ from the methods used 
for other accounting purposes, the Fund's yield may not equal the income paid 
on Fund shares or the income reported in the Fund's financial statements. 

   
The Fund's total return shows the overall change in value of a hypothetical 
investment in the Fund, assuming the reinvestment of all dividends. Cumulative 
total return shows the Fund's performance over a period of time. Average annual 
total return shows the cumulative return of the Fund shares divided over the 
number of years included in the period. Because average annual total return 
tends to smooth out variations in the Fund's performance, you should recognize 
that it is not the same as actual year-to-year results. 
    

   
Both total return and yield calculations for Class A shares generally include 
the effect of paying the maximum sales charge (except as shown in "The Fund's 
Financial Highlights"). Investments at a lower sales charge would result in 
higher performance figures. Yield and total return for the Class B shares 
reflect deduction of the applicable CDSC imposed on a redemption of shares held 
for the applicable period. All calculations assume that all dividends are 
reinvested at net asset value on the reinvestment dates during the periods. 
Yield and total return of Class A and Class B shares will be calculated 
separately and, because each class is subject to different expenses, the yield 
or total return with respect to that class for the same period may differ. The 
relative performance of the Class A and Class B shares will be affected by a 
variety of factors, including the higher operating expenses attributable to the 
Class B shares, whether the Fund's investment performance is better in the 
earlier or later portions of the period measured and the level of net assets of 
the classes during the period. The Fund will include the total return of Class 
A and Class B shares in any advertisement or promotional materials including 
the Fund's performance data. The value of the Fund's shares, when redeemed, may 
be more or less than their original cost. Both yield and total return are 
historical calculations and are not an indication of future performance. See 
"Factors to Consider in Choosing an Alternative." 
    


                                       13 
<PAGE> 
HOW TO BUY SHARES 

Opening an account 

   
The minimum initial investment in Class A and Class B shares is $1,000 ($250 
for group investments and retirement plans). 
    

   
Complete the Account Application attached to this Prospectus. Indicate whether 
you are purchasing Class A or Class B shares. If you do not specify which class 
of shares you are purchasing, Investor Services will assume you are investing 
in Class A shares. 
    

By Check 

   
1. Make your check payable to John Hancock Investor Services Corporation. 
   ("Investor Services"). 
2. Deliver the completed application and check to your registered 
   representative or Selling Broker, or mail it directly to Investor Services. 
    

By Wire 

   
1. Obtain an account number by contacting your registered representative or 
   Selling Broker, or by calling 1-800-225-5291. 
2. Instruct your bank to wire funds to: 
    First Signature Bank & Trust 
    John Hancock Deposit Account No. 900000260 
    ABA Routing No. 211475000 
    For credit to: John Hancock Sovereign Bond Fund 
    (Class A or Class B shares) 
    Your Account Number 
    Name(s) under which account is registered 
3. Deliver the completed application to your registered representative or 
   Selling Broker, or mail it directly to Investor Services. 
    

Buying additional Class A and Class B shares 

Monthly Automatic 
Accumulation 
Program (MAAP) 

1. Complete the "Automatic Investing" and "Bank Information" sections on the 
   Account Privileges Application, designating a bank account from which funds 
   may be drawn. 
2. The amount you elect to invest will be automatically withdrawn from your 
   bank or credit union account. 

By Telephone 

   
1. Complete the "Invest-By-Phone" and "Bank Information" sections on the 
   Account Privileges Application, designating a bank account from which your 
   funds may be drawn. Note that in order to invest by phone, your account must 
   be in a bank or credit union that is a member of the Automated Clearing 
   House system (ACH). 
2. After your authorization form has been processed, you may purchase 
   additional Class A and Class B shares by calling Investor Services toll-free 
   at 1-800-225-5291. 
3. Give the Investor Services representative the name(s) in which your account 
   is registered, the Fund name, the class of shares you own, your account 
   number and the amount you wish to invest. 
4. Your investment normally will be credited to your account the business day 
   following your phone request. 
    


                                       14 
<PAGE> 
By Check 

   
1. Either fill out the detachable stub included on your account statement or 
   include a note with your investment listing the name of the Fund, the class 
   of shares you own, your account number and the name(s) in which the account 
   is registered. 
2. Make your check payable to John Hancock Investor Services Corporation. 
3. Mail the account information and check to: 
    John Hancock Investor Services Corporation. 
    P.O. Box 9115 
    Boston, MA 02205-9115 
    or deliver it to your registered representative or Selling Broker. 
    

By Wire 

Instruct your bank to wire funds to: 
  First Signature Bank & Trust 
  John Hancock Deposit Account No. 900000260 
  ABA Routing No. 211475000 
  For credit to: John Hancock Sovereign Bond Fund 
  (Class A or Class B shares) 
  Your Account Number 
  Name(s) under which account is registered 

   
Other Requirements: All purchases must be made in U.S. dollars. Checks written 
on foreign banks will delay purchases until U.S. funds are received, and a 
collection charge may be imposed. Shares of the Fund are priced at the offering 
price based on the net asset value computed after John Hancock Funds receives 
notification of the dollar equivalent from the Fund's custodian bank. Wire 
purchases normally take two or more hours to complete and, to be accepted the 
same day, must be received by 4:00 p.m., New York time. Your bank may charge a 
fee to wire funds. Telephone transactions are recorded to verify information. 
Certificates are not issued unless a request is made in writing to Investor 
Services. 
    

You will receive account statements, which you should keep to help with your 
personal recordkeeping. 

You will receive a statement of your account after any transaction that affects 
your share balance or registration (statements related to reinvestment of 
dividends and automatic investment/withdrawal plans will be sent to you 
quarterly). A tax information statement will be mailed to you by January 31 of 
each year. 

SHARE PRICE 

The offering price of your shares is their net asset value plus a sales charge, 
if applicable, which will vary with the purchase alternative you choose. 

   
The net asset value per share ("NAV") is the value of one share. The NAV is 
calculated by dividing the net assets of each class by the number of 
outstanding shares of that class. The NAV of each class can differ. Securities 
in the Fund's portfolio are valued on the basis of market quotations, 
valuations provided by independent pricing services, or fair value as 
determined in good faith according to procedures approved by the Trustees. 
Short-term debt investments maturing within 60 days are valued at amortized 
cost, which approximates market value. Foreign securities are valued on the 
basis of quotations from the primary market in which they are traded. If 
quotations are not readily available, or the value has been materially affected 
by events occurring after the closing of a foreign market, assets are valued by 
a method that the Trustees believe accurately reflects fair value. The NAV is 
calculated once daily as of the close of regular trading on the New York Stock 
Exchange (generally at 4:00 P.M., New York time) on each day that the Exchange 
is open. 
    

   
Shares of the Fund are sold at the offering price based on the NAV computed 
after your investment request is received in good order by John Hancock Funds. 
If you buy shares of the Fund through a Selling Broker, the Selling Broker must 
receive your 
    
                                       15 

<PAGE> 
   
investment before the close of regular trading on the New York Stock Exchange, 
and transmit it to John Hancock Funds before its close of business, to receive 
that day's offering price. 
    

Initial Sales Charge Alternative--Class A Shares. The offering price you pay 
for Class A shares of the Fund equals the NAV plus a sales charge as follows: 

<TABLE>
<CAPTION>
                                                                   Combined 
                                  Sales            Sales          Reallowance       Reallowance 
                                 Charge           Charge          and Service        to Selling 
                                  as a             as a            Fee as a         Brokers as a 
                               Percentage       Percentage       Percentage of     Percentage of 
      Amount invested          of Offering     of the Amount       Offering           Offering 
 (Including Sales Charge)         Price          Invested          Price(+)           Price(*) 
<S>                               <C>              <C>               <C>                <C>
Less than $100,000                4.50%            4.71%             4.00%              3.76% 
$100,000 to $249,999              3.75%            3.90%             3.25%              3.01% 
$250,000 to $499,999              2.75%            2.83%             2.30%              2.06% 
$500,000 to $999,999              2.00%            2.04%             1.75%              1.51% 
$1,000,000 and over               0.00%(**)        0.00%(**)          (***)             0.00%(***) 
</TABLE>

  (*) Upon notice to Selling Brokers with whom it has sales agreements, John 
      Hancock Funds may reallow an amount up to the full applicable sales 
      charge. In addition to the reallowance allowed to all Selling Brokers, 
      John Hancock Funds will pay the following: round trip airfare to a resort 
      will be given to each registered representative of a Selling Broker (if 
      the Selling Broker has agreed to participate) who sells certain amounts of
      shares of John Hancock funds. John Hancock Funds will make these incentive
      payments out of its own resources. Other than distribution fees, the Fund 
      does not bear distribution expenses. A Selling Broker to whom 
      substantially the entire sales charge is reallowed or who receives these 
      incentives may be deemed to be an underwriter under the Securities Act of 
      1933. 

 (**) No sales charge is payable at the time of purchase of Class A shares of $1
      million or more, but a contingent deferred sales charge may be imposed in 
      the event of certain redemption transactions within one year of purchase. 

   
(***) John Hancock Funds may pay a commission and first year's service fee (as 
      described in (+) below) to Selling Brokers who initiate and are 
      responsible for purchases of $1 million or more in aggregate, as follows: 
      1% on sales to $4,999,999, 0.50% on the next $5 million and 0.25% on $10 
      million and over. 
    

   
  (+) At the time of sale, John Hancock Funds pays to Selling Brokers the first 
      year's service fee in advance, in an amount equal to 0.25% of the net 
      assets invested in the Fund. Thereafter it pays the service fee 
      periodically in arrears in an amount up to 0.25% of the Fund's average 
      annual net assets. Selling Brokers receive the fee as compensation for 
      providing personal and account maintenance services to shareholders. 
    

   
Sales charges ARE NOT APPLIED to any dividends that are reinvested in 
additional Class A shares of the Fund. 
    

   
John Hancock Funds will pay certain affiliated Selling Brokers at an annual 
rate of up to 0.05% of the daily net assets of the accounts attributable to 
these brokers. 
    

Under certain circumstances described below, investors in Class A shares may be 
entitled to pay reduced sales charges. See "Qualifying For a Reduced Sales 
Charge." 

Contingent Deferred Sales Charge--Investments of $1 Million or More in Class A 
Shares. Purchases of $1 million or more in Class A shares will be made at net 
asset value with no initial sales charge, but if the shares are redeemed within 
12 months after the end of the calendar month in which the purchase was made 
(the contingent 

                                       16 
<PAGE> 
deferred sales charge period), a contingent deferred sales charge ("CDSC") will 
be imposed. The rate of the CDSC will depend on the amount invested as follows: 

<TABLE>
<CAPTION>
         Amount Invested              CDSC Rate 
<S>                                      <C>
$1 million to $4,999,999                 1.00% 
Next $5 million to $9,999,999            0.50% 
Amounts of $10 million and over          0.25% 
</TABLE>

Existing full service clients of John Hancock Mutual Life Insurance Company who 
were group annuity contract holders as of September 1, 1994, and participant 
directed defined contribution plans with at least 100 eligible employees at the 
inception of the Fund account may purchase Class A shares with no initial sales 
charge. However, if the shares are redeemed within 12 months after the end of 
the calendar year in which the purchase was made, a contingent deferred sales 
charge will be imposed at the above rate. 

   
The charge will be assessed on an amount equal to the lesser of the current 
market value or the original purchase cost of the redeemed Class A shares. 
Accordingly, no CDSC will be imposed on increases in account value above the 
initial purchase price, including any dividends which have been reinvested in 
additional Class A shares. 
    

   
In determining whether a CDSC applies to a redemption, the calculation will be 
determined in a manner that results in the lowest possible rate being charged. 
Therefore, it will be assumed that the redemption is first made from any shares 
in your account that are not subject to the CDSC. The CDSC is waived on 
redemption in certain circumstances. See the discussion under "Waiver of 
Contingent Deferred Sales Charges." 
    

You may qualify for a reduced sales charge on your investments in Class A 
shares. 

   
Qualifying for a Reduced Sales Charge. If you invest more than $100,000 in 
Class A shares of the Fund or a combination of funds in the John Hancock funds 
(except money market funds), you may qualify for a reduced sales charge on your 
investments in Class A shares through a LETTER OF INTENTION. You may also be 
able to use the ACCUMULATION PRIVILEGE and COMBINATION PRIVILEGE to take 
advantage of the value of your previous investments in Class A shares of John 
Hancock funds when meeting the breakpoints for a reduced sales charge. For the 
ACCUMULATION PRIVILEGE and COMBINATION PRIVILEGE, the applicable sales charge 
will be based on the total of: 
    

   
1. Your current purchase of Class A shares of the Fund; 
    

   
2. The net asset value (at the close of business on the previous day) of (a) 
all Class A shares of the Fund you hold, and (b) all Class A shares of any 
other John Hancock funds you hold; and 
    

   
3. The net asset value of all shares held by another shareholder eligible to 
combine his or her holdings with you into a single "purchase." 
    

   
Example: 
    

   
If you hold Class A shares of a John Hancock fund with a net asset value of 
$80,000 and, subsequently, invest $20,000 in Class A shares of the Fund, the 
sales charge on this subsequent investment would be 3.75% and not 4.50%. This 
rate is the rate that would otherwise be applicable to investments of less than 
$100,000. See "Initial Sales Charge Alternative--Class A Shares." 
    
                                       17 
<PAGE> 
   
Class A shares may be available without a sales charge to certain individuals 
and organizations. 
    

   
If you are in one of the following categories, you may purchase Class A shares 
of the Fund without paying a sales charge: 
    

   
(bullet) A Trustee or officer of the Trust; a Director or officer of the 
Adviser and its affiliates or Selling Brokers; employees or sales 
representatives of any of the foregoing; retired officers employees or 
Directors of any of the foregoing; a member of the immediate family of any of 
the foregoing; or any fund, pension, profit sharing or other benefit plan for 
the individuals described above. 
    

   
(bullet) Any state, county, city or any instrumentality, department, authority 
or agency of these entities that is prohibited by applicable investment laws 
from paying a sales charge or commission when it purchases shares of any 
registered investment management company.* 
    

   
(bullet) A bank, trust company, credit union, savings institution or other type 
of depository institution, its trust departments or common trust funds if it is 
purchasing $1 million or more for non-discretionary customers or accounts.* 
    

   
(bullet) A broker, dealer or registered investment adviser that has entered 
into an agreement with John Hancock Funds providing specifically for the use of 
Fund shares in fee- based investment products made available to their clients. 
    

   
(bullet) A former participant in an employee benefit plan with John Hancock 
funds, when he/she withdraws from his/her plan and transfers any or all of 
his/her plan distributions directly to the Fund. 
    

   
* For investments made under these provisions, John Hancock funds may make a 
payment out of its own resources to the Selling Broker in an amount not to 
exceed 0.25% of the amount invested. 
    

   
Class A shares of the Fund may also be purchased without an initial sales 
charge in connection with certain liquidation, merger or acquisition 
transactions involving other investment companies or personal holding 
companies. 
    

Contingent Deferred Sales Charge Alternative--Class B Shares. Class B shares 
are offered at net asset value per share without a sales charge, so that your 
entire initial investment will go to work at the time of purchase. However, 
Class B shares redeemed within six years of purchase will be subject to a CDSC 
at the rates set forth below. This charge will be assessed on an amount equal 
to the lesser of the current market value or the original purchase cost of the 
shares being redeemed. Accordingly, you will not be assessed a CDSC on 
increases in account value above the initial purchase price, including shares 
derived from dividend reinvestments. 

   
In determining whether a CDSC applies to a redemption, the calculation will be 
determined in a manner that results in the lowest possible rate being charged. 
It will be assumed that your redemption comes first from shares you have held 
beyond the six-year CDSC redemption period or those you acquired through 
dividend reinvestment, and next from the shares you have held the longest 
during the six-year period. The CDSC is waived on redemptions in certain 
circumstances. See the discussion "Waiver of Contingent Deferred Sales Charges" 
below. 
    

Example: 

You have purchased 100 shares at $10 per share. The second year after your 
purchase, your investment's net asset value per share has increased by $2 to 
$12, and 

                                       18 
<PAGE> 
you have gained 10 additional shares through dividend reinvestment. If you 
redeem 50 shares at this time, your CDSC will be calculated as follows: 

<TABLE>
<CAPTION>
<S>          <C>                                          <C>
 (bullet)    Proceeds of 50 shares redeemed at $12 per 
             share                                        $ 600 
(bullet)     Minus proceeds of 10 shares not subject to 
             CDSC because they were acquired through 
             dividend reinvestment (10 X $12)              -120 
(bullet)     Minus appreciation on remaining shares, 
             also not subject to CDSC (40 X $2)            - 80 
(bullet)     Amount subject to CDSC                       $ 400 
</TABLE>

Proceeds from the CDSC are paid to John Hancock Funds. John Hancock Funds uses 
all or part of them to defray its expenses related to providing the Fund with 
distribution services connected to the sale of Class B shares, such as 
compensating selected Selling Brokers for selling these shares. The combination 
of the CDSC and the distribution and service fees makes it possible for the 
Fund to sell Class B shares without deducting a sales charge at the time of the 
purchase. 

The amount of the CDSC, if any, will vary depending on the number of years from 
the time you purchase your Class B shares until the time you redeem them. 
Solely for purposes of determining this holding period, any payments you make 
during the month will be aggregated and deemed to have been made on the last 
day of the month. 

<TABLE>
<CAPTION>
                                           Contingent Deferred Sales 
Year In Which Class B Shares               Charge As a Percentage of 
Redeemed Following Purchase              Dollar Amount Subject to CDSC 
<S>                                                   <C>
First                                                 5.0% 
Second                                                4.0% 
Third                                                 3.0% 
Fourth                                                3.0% 
Fifth                                                 2.0% 
Sixth                                                 1.0% 
Seventh and thereafter                                None 
</TABLE>

A commission 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 Selling Brokers. The 
initial service fee is paid in advance at the time of sale for the provision of 
personal and account maintenance services to shareholders during the twelve 
months following the sale, and thereafter the service fee is paid in arrears. 

Under certain circumstances, the CDSC on Class B and certain Class A share 
redemptions will be waived. 

   
Waiver of Contingent Deferred Sales Charge. The CDSC will be waived on 
redemptions of Class B shares and Class A shares that are subject to the CDSC 
unless indicated otherwise, in the following circumstances: 
    

   
(bullet) Redemptions of Class B shares made under a Systematic Withdrawal Plan 
(see "How to Redeem Shares"), as long as your annual redemptions do not exceed 
10% of your account value at the time you established your Systematic 
Withdrawal Plan and 10% of the value of your subsequent investments (less 
redemptions) in that account at the time you notify Investor Services. This 
waiver does not apply to Systematic Withdrawal Plan redemptions of Class A 
shares that are subject to a CDSC. 
    

   
(bullet) Redemptions made to effect distributions from an Individual Retirement 
Account either before or after age 59-1/2, as long as the distributions are 
based on your life expectancy or the joint-and-last survivor life expectancy of 
you and your beneficiary. These distributions must be free from penalty under 
the Code. 
    

   
                                       19 
<PAGE> 
    
(bullet) Redemptions made to effect mandatory distributions under the Code 
after age 70-1/2 from a tax-deferred retirement plan. 

(bullet) Redemptions made to effect distributions to participants or 
beneficiaries from certain employer-sponsored retirement plans including those 
qualified under Section 401(a) of the Code, custodial accounts under Section 
403(b)(7) of the Code and deferred compensation plans under Section 457 of the 
Code. The waiver also applies to certain returns of excess contributions made 
to these plans. In all cases, the distributions must be free from penalty under 
the Code. 

(bullet) Redemptions due to death or disability. 

(bullet) Redemptions made under the Reinvestment Privilege, as described in 
"Additional Services and Programs" of this Prospectus. 

(bullet) Redemptions made pursuant to the Fund's right to liquidate your 
account if you own fewer than 50 shares. 

(bullet) Redemptions made in connection with certain liquidation, merger or 
acquisition transactions involving other investment companies or personal 
holding companies. 

   
(bullet) Redemptions from certain IRA and retirement plans that purchased 
shares prior to October 1, 1992. 
    

If you qualify for a CDSC waiver under one of these situations, you must notify 
Investor Services either directly or through your Selling Broker at the time 
you make your redemption. The waiver will be granted once Investor Services has 
confirmed that you are entitled to the waiver. 

   
Conversion of Class B Shares. Your Class B shares, and an appropriate portion 
of reinvested dividends on those shares will be converted into Class A shares 
automatically. This will occur at the end of eight years after the shares were 
purchased, and will result in lower annual distribution fees. If you exchanged 
Class B shares into this Fund from another John Hancock fund, the calculation 
will be based on the time you purchased the shares in the original fund. The 
Fund has been advised that the conversion of Class B shares to Class A shares 
should not be taxable for Federal income tax purposes, nor should it change 
your tax basis or tax holding period for the converted shares. 
    

HOW TO REDEEM SHARES 

   
You may redeem all or a portion of your shares on any business day. Your shares 
will be redeemed at the next NAV calculated after your redemption request is 
received in good order by Investor Services, less any applicable CDSC. The Fund 
may hold payment until it is reasonably satisfied that investments recently 
made by check or Invest-by-Phone have been collected (which may take up to 10 
calendar days). 
    

   
Once your shares are redeemed, the Fund generally sends you payment on the next 
business day. When you redeem your shares, you may realize a taxable gain or 
loss depending usually on the difference between what you paid for them and 
what you receive for them, subject to certain tax rules. Under unusual 
circumstances, the Fund may suspend redemptions or postpone payment for up to 
seven days or longer, as permitted by Federal securities laws. 
    


                                       20 
<PAGE> 
By Telephone 

To assure acceptance of your redemption request, please follow these 
procedures. 

   
All Fund shareholders are automatically eligible for the telephone redemption 
privilege. Call 1-800-225-5291, from 8:00 A.M. to 4:00 P.M. (New York time), 
Monday through Friday, excluding days on which the New York Stock Exchange is 
closed. Investor Services employs the following procedures to confirm that 
instructions received by telephone are genuine. Your name, the account number, 
taxpayer identification number applicable to the account and other relevant 
information may be requested. In addition, telephone instructions are recorded. 
    

You may redeem up to $100,000 by telephone, but the address on the account must 
not have changed for the last 30 days. A check will be mailed to the exact 
name(s) shown on the account. 

   
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. 
In all other cases, neither the Fund nor Investor Services will be liable for 
any loss or expense for acting upon telephone instructions made in accordance 
with the telephone transaction procedures mentioned above. 
    

   
Telephone redemption is not available for IRAs or other tax-qualified 
retirement plans or shares of the Fund that are in certificated form. 
During periods of extreme economic conditions or market changes, telephone 
requests may be difficult to implement due to a large volume of calls. During 
these times you should consider placing redemption requests in writing or using 
EASI-Line. EASI-Line's telephone number which is 1-800-338-8080. 
    

   
By Wire 
    

   
If you have a telephone redemption form on file with the Fund, redemption 
proceeds of $1,000 or more can be wired on the next business day to your 
designated bank account, and a fee (currently $4.00) will be deducted. You may 
also use electronic funds transfer to your assigned bank account, and the funds 
are usually collectable after two business days. Your bank may or may not 
charge for this service. Redemptions of less than $1,000 will be sent by check 
or electronic funds transfer. 
    

   
This feature may be elected by completing the "Telephone Redemption" section on 
the Account Privileges Application that is included with this Prospectus. 
    

In Writing 

Send a stock power or "letter of instruction" specifying the name of the Fund, 
the dollar amount or the number of shares to be redeemed, your name, class of 
shares, your account number and the additional requirements listed below that 
apply to your particular account. 

<TABLE>
<CAPTION>
         Type of Registration                                      Requirements 
<S>                                       <C>
Individual, Joint Tenants, Sole           A letter of instruction signed (with titles where applicable) by 
  Proprietorship, Custodial (Uniform      all persons authorized to sign for the account, exactly as it is 
  Gifts or Transfer to Minors Act),       registered with the signature(s) guaranteed. 
  General Partners. 
Corporation, Association                  A letter of instruction and a corporate resolution, signed by 
                                          person(s) authorized to act on the account, with the 
                                          signature(s) guaranteed. 
Trusts                                    A letter of instruction signed by the Trustee(s) with the 
                                          signature(s) guaranteed. (If the Trustee's name is not 
                                          registered on your account, also provide a copy of the trust 
                                          document, certified within the last 60 days.) 
If you do not fall into any of these registration categories, please call 1-800-225-5291 for further instructions. 
</TABLE>

                                       21 
<PAGE> 
   
Who may guarantee your signature 

A signature guarantee is a widely accepted way to protect you and the Fund by 
verifying the signature on your request. It may not be provided by a notary 
public. If the net asset value of the shares redeemed is $100,000 or less, John 
Hancock Funds may guarantee the signature. The following institutions may 
provide you with a signature guarantee, provided that the institution meets 
credit standards established by Investor Services: (i) a bank; (ii) a 
securities broker or dealer, including a government or municipal securities 
broker or dealer, that is a member of a clearing corporation or meets certain 
net capital requirements; (iii) a credit union having authority to issue 
signature guarantees; (iv) a savings and loan association, a building and loan 
association, a cooperative bank, a federal savings bank or association; or (v) 
a national securities exchange, a registered securities exchange or a clearing 
agency. 
    

Through Your Broker 

Your broker may be able to initiate the redemption. Contact your broker for 
instructions. 

Additional information about redemptions 

If you have certificates for your shares, you must submit them with your stock 
power or a letter of instruction. Unless you specify to the contrary, any 
outstanding Class A shares will be redeemed before Class B shares. You may not 
redeem certificated shares by telephone. 

Due to the proportionately high cost of maintaining smaller accounts, the Fund 
reserves the right to redeem at net asset value all shares in an account which 
holds fewer than 50 shares (except accounts under retirement plans) and to mail 
the proceeds to the shareholder, or the transfer agent may impose an annual fee 
of $10.00. No account will be involuntarily redeemed or additional fee imposed, 
if the value of the account is in excess of the Fund's minimum initial 
investment. No CDSC will be imposed on involuntary redemptions of shares. 

   
Shareholders will be notified before these redemptions are to be made or this 
fee is imposed, and will have 30 days to purchase additional shares to bring 
their account balance up to the required minimum. Unless the number of shares 
acquired by further purchases and dividend reinvestments, if any, exceeds the 
number of shares redeemed, repeated redemptions from a smaller account may 
eventually trigger this policy. 
    


ADDITIONAL SERVICES AND PROGRAMS 

Exchange Privilege 

You may exchange shares of the Fund only for shares of the same class of 
another John Hancock fund. 

   
If your investment objective changes, or if you wish to achieve further 
diversification, John Hancock offers other funds with a wide range of 
investment goals. Contact your registered representative or Selling Broker and 
request a prospectus for the John Hancock fund that interests you. Read the 
prospectus carefully before exchanging your shares. You can exchange shares of 
each class of the Fund only for shares of the same class of another John 
Hancock fund. For this purpose, John Hancock funds with only one class of 
shares will be treated as Class A whether or not they have been so designated. 
    

   
Exchanges between funds that are not subject to a CDSC are based on the 
respective net asset values. No sales charge or transaction charge is imposed. 
Class B shares of the Fund which are subject to a CDSC may be exchanged for 
Class B shares of another John Hancock fund without incurring the CDSC; however 
these shares will be subject to the CDSC schedule of the shares acquired 
(except for exchanges into John Hancock Short-Term Strategic Income Fund, John 
Hancock Adjustable U.S. Government Trust and John Hancock Limited-Term 
Government Fund will be subject to the initial fund's CDSC). For purposes of 
computing the CDSC payable upon redemption of shares acquired in an exchange, 
the holding period of the original shares is added to the holding period of the 
shares acquired in an exchange. However if you exchange Class B shares 
purchased prior to January 1, 1994 for Class B shares of any other John Hancock 
fund, you will continue to be subject to the CDSC schedule that was in effect 
at your initial purchase date. 
    


                                       22 
<PAGE> 
   
You may exchange Class B shares of the fund into shares of a John Hancock money 
market fund at net asset value. However, you will continue to be subject to a 
CDSC upon redemption. The rate of the CDSC will be the rate in effect on the 
original fund at the time of the exchange. 
    

   
The Fund reserves the right to require that you keep previously exchanged 
shares (and reinvested dividends) in the Fund for 90 days before you are 
permitted a new exchange. The Fund may also terminate or alter the terms of the 
exchange privilege upon 60 days' notice to shareholders. 
    

   
An exchange of shares is treated as a redemption of shares of one fund and the 
purchase of shares in another for Federal income tax purposes. An exchange may 
result in a taxable gain or loss. 
    

   
When you make an exchange, your account registration must be identical in both 
the existing and new account. The exchange privilege is available only in 
states where the exchange can be made legally. 
    

   
Under exchange agreements with John Hancock Funds, certain dealers, brokers and 
investment advisers may exchange their clients' Fund shares, subject to the 
terms of those agreements and John Hancock Funds' right to reject or suspend 
those exchanges at any time. Because of the restrictions and procedures under 
those agreements, the exchanges may be subject to timing limitations and other 
restrictions that do not apply to exchanges requested by shareholders directly, 
as described above. 
    

   
Because Fund performance and shareholders can be hurt by excessive trading, the 
Fund reserves the right to terminate the exchange privilege for any person or 
group that, in John Hancock Funds' judgment, is involved in a pattern of 
exchanges that coincide with a "market timing" strategy that may disrupt the 
Fund's ability to invest effectively according to its investment objective and 
policies, or might otherwise affect the Fund and its shareholders adversely. 
The Fund may also temporarily or permanently terminate the exchange privilege 
for any person who makes seven or more exchanges out of the Fund per calendar 
year. Accounts under common control or ownership will be aggregated for this 
purpose. Although the Fund will attempt to give you prior notice whenever it is 
reasonably able to do so, it may impose these restrictions at any time. 
    

By Telephone 

   
1. When you complete the application for your initial purchase of Fund shares, 
   you automatically authorize exchanges by telephone unless you check the box 
   indicating that you do not wish to have the telephone exchange privilege. 
    

2. Call 1-800-225-5291. Have the account number of your current fund and the 
   exact name in which it is registered available to give to the telephone 
   representative. 

   
3.  Your name, the account number, taxpayer identification number applicable to 
    the account and other relevant information may be requested. In addition, 
    telephone instructions are recorded. 
    


                                       23 
<PAGE> 
In Writing 

   
1. In a letter request an exchange and list the following:  
    --the name and class of the Fund whose shares you currently own 
    --your account number 
    --the name(s) in which the account is registered 
    --the name of the Fund in which you wish your exchange to be invested 
    --the number of shares, all shares or the dollar amount you wish to 
      exchange 
   Sign your request exactly as the account is registered. 
    

   
2. Mail the request and information to: 
     John Hancock Investor Services Corporation 
     P.O. Box 9116 
     Boston, Massachusetts 02205-9116 
    

Reinvestment Privilege 

If you redeem shares of the Fund, you may be able to reinvest all or part of 
the proceeds in shares of the Fund or another John Hancock fund without paying 
an additional sales charge. 

   
1. You will not be subject to a sales charge on Class A shares that you 
   reinvest in any John Hancock fund that is otherwise subject to a sales 
   charge, as long as you reinvest within 120 days from the redemption date. If 
   you paid a CDSC upon a redemption, you may reinvest at net asset value in 
   the same class of shares from which you redeemed within 120 days. Your 
   account will be credited with the amount of the CDSC previously charged, and 
   the reinvested shares will continue to be subject to a CDSC. For purposes of 
   computing the CDSC payable upon a subsequent redemption, the holding period 
   of the shares acquired through reinvestment will include the holding period 
   of the redeemed shares. 
    

   
2. Any portion of your redemption may be reinvested in Fund shares or in shares 
   of any of the other John Hancock funds, subject to the minimum investment 
   limit of that fund. 
    

   
3. To reinvest, you must notify Investor Services in writing. Include the 
   Fund(s) name, account number and class from which your shares were 
   originally redeemed. 
    

Systematic Withdrawal Plan 

You can pay routine bills from your account, or make periodic disbursements 
from your retirement account to comply with IRS regulations. 

   
1. You can elect the Systematic Withdrawal Plan at any time by completing the 
   Account Privileges Application which is attached to this Prospectus. You can 
   also obtain the application from your registered representative or by 
   calling 1-800-225-5291. 
    

2. To be eligible, you must have at least $5,000 in your account. 

3. Payments from your account can be made monthly, quarterly, semi-annually or 
   annually or on a selected monthly basis, to yourself or any other designated 
   payee. 

4. There is no limit on the number of payees you may authorize, but all 
   payments must be made at the same time or intervals. 

5. It is not advantageous to maintain a Systematic Withdrawal Plan concurrently 
   with purchases of additional Class A or Class B shares because you may be 
   subject to an 

                                       24 
<PAGE> 
   initial sales charge on your purchases of Class A shares or to a CDSC on 
   your redemptions of Class B shares. In addition, your redemptions are 
   taxable events. 

   
6. Redemptions will be discontinued if the U.S. Postal Service cannot deliver 
   your checks, or if deposits to a bank account are returned for any reason. 
    

Monthly Automatic Accumulation Program (MAAP) 

You can make automatic investments and simplify your investing. 

   
1. You can authorize an investment to be drawn automatically each month from 
   your bank for investment in Fund shares, under the "Automatic Investing" and 
   "Bank Information" sections of the Account Privileges Application. 
    

   
2. You can also authorize automatic investing through payroll deduction by 
   completing the "Direct Deposit Investing" section of the Account Privileges 
   Application. 
    

   
3. You can terminate your Monthly Automatic Accumulation Program at any time. 
    

4. There is no charge to you for this program, and there is no cost to the 
   Fund. 

5. If you have payments being withdrawn from a bank account and we are notified 
   that the account has been closed, your withdrawals will be discontinued. 

Group Investment Program 

Organized groups of at least four persons may establish accounts. 

1. An individual account will be established for each participant, but the 
   initial sales charge for Class A shares will be based on the aggregate 
   dollar amount of all participants' investments. To determine how to qualify 
   for this program, contact your registered representative or call 
   1-800-225-5291. 

2. The initial aggregate investment of all participants in the group must be at 
   least $250. 

   
3. There is no additional charge for this program. There is no obligation to 
   make investments beyond the minimum, and you may terminate the program at 
   any time. 
    

Retirement Plans 

   
1. You may use the Fund to fund various types of retirement plans, including 
   Individual Retirement Accounts, Keogh Plans (H.R. 10), Pension and Profit 
   Sharing Plans (including 401(k) Plans), Tax-Sheltered Annuity Retirement 
   Plans (403(b) or TSA Plans), and 457 Plans. 
    

   
2. The initial investment minimum or aggregate minimum for any of the above 
   plans is $250. However, accounts being established as group IRA, SEP, 
   SARSEP, TSA, 401(k) and 457 Plans will be accepted without an initial 
   minimum investment. 
    

   
INSTITUTIONAL INVESTORS 
    

   
Class C shares of the Fund are available only to the following types of 
institutional investors: (i) Benefit plans not affiliated with the Adviser 
which have at least $25,000,000 in plan assets, and either have a separate 
trustee vested with investment discretion and certain limitations on the 
ability of the plan beneficiaries to access their plan investments without 
incurring adverse tax consequences or allow their participants to select among 
one or more investment options, including the Fund ("participant-directed 
plans"); (ii) Banks and insurance companies which are not 
    

                                       25 
<PAGE> 
   
affiliated with the Adviser purchasing shares for their own account; (iii) 
Investment companies not affiliated with the Adviser; (iv) Tax-exempt 
retirement plans of the Adviser and its affiliates, including affiliated 
brokers; (v) Unit investment trusts sponsored by John Hancock Funds and certain 
other sponsors; and (vi) Existing full- service clients of John Hancock Mutual 
Life Insurance Company who were group annuity contract holders as of September 
1, 1994. Participant-directed plans include, but are not limited to, 401(k), 
TSA and 457 plans. 
    

   
Class C shares are available to eligible institutional investors at net asset 
value without the imposition of a sales charge and are not subject to ongoing 
distribution fees imposed under a plan adopted pursuant to Rule 12b-1 under the 
Investment Company Act of 1940. The minimum initial investment in Class C 
shares is $1,000,000, but this requirement may be waived at the discretion of 
the Company's officers. Some individuals who are currently eligible to purchase 
Class A or Class B shares may also be participants in plans that are eligible 
to purchase Class C shares of the Fund. 
    

   
John Hancock Funds may pay a one-time payment of up to 0.15% of the amount 
invested in Class C shares to a selling broker for its sales of Class C shares. 
A person entitled to receive compensation for selling shares of the Fund may 
receive different compensation with respect to sales of Class A, Class B or 
Class C shares or any additional future class of shares. 
    

   
Class C shares are also available to existing full-service clients of John 
Hancock Mutual Life Insurance Company who were group annuity contract holders 
as of September 1, 1994. John Hancock Funds, out of its own resources, may pay 
to a Selling Broker an annual service fee of up to 0.20% of the amount invested 
in Class C shares by these clients. 
    

   
The Reinvestment Privilege, Systematic Withdrawal Plan, Monthly Automatic 
Accumulation Program, Group Investment Program and Retirement Plans are not 
available for Class C shares. 
    

   
If you are considering a purchase of Class C shares of the Fund, please call 
John Hancock Investor Services Corporation at 1-800-437-9312 to obtain 
information about eligibility, instructions for purchase by check or wire and 
an Institutional Account Application. 
    

APPENDIX 

Moody's describes its lower ratings for corporate bonds as follows. 

   
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. 
    

Bonds which are rated Ba are judged to have speculative elements; their future 
cannot be considered as well assured. Often the protection of interest and 
principal payments may be very moderate and thereby are well safeguarded during 
both good and bad times over the future. Uncertainty of position characterizes 
bonds in this class. 

                                       26 
<PAGE> 
Bonds which are rated B generally lack characteristics of the desirable 
investment. Assurance of interest and principal payments or of maintenance of 
other terms of the contract over any long period of time may be small. 

Bonds which are rated Caa are of poor standing. Such issues may be in default 
or there may be present elements of danger with respect to principal or 
interest. 

Bonds which are rated Ca represent obligations which are speculative in a high 
degree. Such issues are often in default or have other marked shortcomings. 

Bonds which are rated C are the lowest rated class of bonds and issues so rated 
can be regarded as having extremely poor prospects of ever attaining any real 
investment standing. 

S&P describes its lower ratings for corporate bonds as follows: 

Debt rated BBB is regarded as having an adequate capacity to pay interest and 
repay principal. Whereas it normally exhibits adequate protection parameters, 
adverse economic conditions or changing circumstances are more likely to lead 
to a weakened capacity to pay interest and repay principal for debt in this 
category than in higher rated categories. 

   
Debt rated BB, B, CCC, or C is regarded, on balance, as predominantly 
speculative with respect to the issuer's capacity to pay interest and repay 
principal in accordance with the terms of the obligations. BB indicates the 
lowest degree of speculation and CC the highest degree of speculation. While 
such debt will likely have some quality and protective characteristics, these 
are outweighed by large uncertainties or major risk exposures to adverse 
conditions. 
    

Quality Distribution 

   
The average weighted quality distribution of the portfolio for the fiscal year 
ended December 31, 1994: 
    

<TABLE>
<CAPTION>
                                                                Rating                          Rating 
                               Average            % of         Assigned          % of          Assigned           % of 
Security Ratings                Value          Portfolio      by Adviser      Portfolio       by Service        Portfolio 
<S>                         <C>                  <C>               <C>           <C>        <C>                   <C>
AAA                         $  506,896,240        36.2%            0             0.0%       $  506,896,240        36.2% 
AA                             149,154,024        10.6%            0             0.0%          149,154,024        10.6% 
A                              240,396,674        17.2%            0             0.0%          240,396,674        17.2% 
BAA                            200,808,990        14.3%            0             0.0%          200,808,990        14.3% 
BA                             165,446,356        11.8%            0             0.0%          165,446,356        11.8% 
B                              114,182,848         8.2%            0             0.0%          114,182,848         8.2% 
CAA                              6,292,420         0.4%            0             0.0%            6,292,420         0.4% 
CA                                       0         0.0%            0             0.0%                    0         0.0% 
C                                        0         0.0%            0             0.0%                    0         0.0% 
D                                        0         0.0%            0             0.0%                    0         0.0% 
Debt Securities              1,383,177,552        98.7%            0             0.0%       $1,383,177,552        98.7% 
Equity Securities                        0         0.0% 
Short-Term Securities           18,727,923         1.3% 
Total Portfolio              1,401,905,475       100.0% 
Other Assets--Net               25,728,800 
Net Assets                  $1,427,634,275 

</TABLE>

                                       27 
<PAGE> 
John Hancock Sovereign Bond Fund 

Investment Adviser 
John Hancock Advisers, Inc. 
101 Huntington Avenue 
Boston, Massachusetts 02199-7603 

   
Principal Distributor 
John Hancock Funds, Inc. 
101 Huntington Avenue 
Boston, Massachusetts 02199-7603 
    

Custodian 
Investors Bank & Trust Company 
24 Federal Street 
Boston, Massachusetts 02110 

   
Transfer Agent 
John Hancock Investor Services Corporation 
P.O. Box 9116 
Boston, Massachusetts 02205-9116 
    

   
Independent Auditors 
Ernst & Young LLP 
200 Clarendon Street 
Boston, Massachusetts 02116 
    


HOW TO OBTAIN INFORMATION 
ABOUT THE FUND 
For: Service Information 
     Telephone Exchange call 1-800-225-5291 
     Investment-by-Phone 
     Telephone Redemption 
     TDD call 1-800-554-6713 

   
JHD-2100P 5-95 
    

JOHN HANCOCK 
SOVEREIGN 
BOND FUND 

   
Class A and B Shares 
Prospectus 
May 1, 1995 

A mutual fund seeking to generate a high level of current income consistent 
with prudent investment risk through investment in a diversified portfolio of 
freely marketable debt securities. 

101 Huntington Avenue 
Boston, Massachusetts 02199-7603 
Telephone 1-800-225-5291 

[RECYCLE LOGO] Printed on recycled paper using soybean ink 

                                       28 





    


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