MUNICIPAL SECURITIES TRUST SERIES 38 & 66TH DISCOUNT SERIES
485BPOS, 1994-10-24
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     As filed with the Securities and Exchange Commission on October 24, 1994
        
                                                    Registration No. 33-21647 *
                                                                              

                        SECURITIES AND EXCHANGE COMMISSION
                              Washington, D.C. 20549
                                    __________
       
                          POST-EFFECTIVE AMENDMENT NO. 6
                                        TO
                                     FORM S-6
                                    __________

                     FOR REGISTRATION UNDER THE SECURITIES ACT
                     OF 1933 OF SECURITIES OF UNIT INVESTMENT
                         TRUSTS REGISTERED ON FORM N-8B-2

    A.   Exact name of trust:

              MUNICIPAL SECURITIES TRUST, SERIES 38 & 66th
              DISCOUNT SERIES, SERIES 39 & 67th DISCOUNT
              SERIES and SERIES 40 & 68th DISCOUNT SERIES

    B.   Name of depositor:

                   BEAR, STEARNS & CO. INC.

    C.   Complete address of depositor's principal executive office:

                   245 Park Avenue
                   New York, New York 10167

    D.   Name and complete address of agent for service:
       
              PETER J. DeMARCO              Copy of comments to:
              Managing Director             MICHAEL R. ROSELLA, ESQ.
              Bear, Stearns & Co. Inc.      Battle Fowler
              245 Park Avenue               75 East 55th Street
              New York, NY 10167            New York, NY 10022
                                            (212) 856-6858
        
    It is proposed that this filing become effective (check appropriate box)
       
    /  /  immediately upon filing pursuant to paragraph (b) of Rule 485.
    /X /  on (October 28, 1994) pursuant to paragraph (b) of Rule 485.
    /  /  60 days after filing pursuant to paragraph (a) of Rule 485.
    /  /  on (       date       ) pursuant to paragraph (a) of Rule 485.

                                                                              

    *    The Prospectus included in this Registration Statement constitutes a
         combined Prospectus as permitted by the provisions of Rule 429 of the
         General Rules and Regulations under the Securities Act of 1933.  Said
         Prospectus covers units of undivided interest in Municipal Securities
         Trust, Series 38 & 66th Discount Series, Series 39 & 67th Discount
         Series and Series 40 & 68th Discount Series covered by prospectuses
         heretofore filed as part of separate registration statements on Form
         S-6 (Registration Nos. 33-21647, 33-24031 and 33-25127, respectively)
         under the Securities Act.  This filing constitutes Post-Effective
         Amendment No. 6 for all of the aforementioned Series.

         Each of the Registrants has registered an indefinite number of
         securities under the Securities Act of 1933 pursuant to Section 24(f)
         under the Investment Company Act of 1940, as amended, and Rule 24f-2
         thereunder, and each of the Registrants filed a Rule 24f-4 Notice for
         its fiscal year ended June 30, 1994 on August 26, 1994.
         

    <PAGE>



                            MUNICIPAL SECURITIES TRUST
                        SERIES 38 AND 66TH DISCOUNT SERIES,
                        SERIES 39 AND 67TH DISCOUNT SERIES,
                        SERIES 40 AND 68TH DISCOUNT SERIES

                               CROSS-REFERENCE SHEET

                       Pursuant to Rule 404 of Regulation C
                         under the Securities Act of 1933

                   (Form N-8B-2 Items required by Instruction as
                          to the Prospectus in Form S-6)


                 Form N-8B-2                                   Form S-6
                 Item Number                            Heading in Prospectus


                     I.  Organization and General Information

  
   1.  (a)  Name of trust...................  Front Cover of Prospectus
       (b)  Title of securities issued......    "
   2.  Name and address of each depositor..   The Sponsor
   3.  Name and address of trustee.........   The Trustee
   4.  Name and address of principal
       underwriters......................     The Sponsor
   5.  State of organization of trust......   Organization
   6.  Execution and termination of
       trust agreement...................     Trust Agreement, Amendment and
                                                Termination
   7.  Changes of name.....................   Not Applicable
   8.  Fiscal year.........................     "
   9.  Litigation..........................   None


         II.  General Description of the Trust and Securities of the Trust

  10.  (a) Registered or bearer
            securities......................  Certificates
       (b) Cumulative or distributive
            securities......................  Interest and Principal
                                              Distributions
       (c) Redemption......................   Trustee Redemption
       (d) Conversion, transfer, etc.......   Certificates, Sponsor
                                              Repurchase,
                                                Trustee Redemption, Exchange
                                                Privilege and Conversion Offer
       (e) Periodic payment plan...........   Not Applicable
       (f) Voting rights...................   Trust Agreement, Amendment and
                                                Termination
       (g)  Notice to certificateholders....  Records, Portfolio, Trust
                                              Agreement,
                                                Amendment and Termination, The
                                                Sponsor, The Trustee
       (h)  Consents required...............  Trust Agreement, Amendment and
                                                Termination
       (i)  Other provisions................  Tax Status
  11.  Type of securities
       comprising units..................     Objectives, Portfolio,
                                              Description
                                                of Portfolio
  12.  Certain information regarding
       periodic payment certificates.....     Not Applicable
  13.  (a)  Load, fees, expenses, etc.......  Summary of Essential
                                              Information,
                                                Offering Price, Volume and
                                              Other
                                                Discounts, Sponsor's and
                                                Underwriters' Profits, Total
                                                Reinvestment Plan, Trust
                                              Expenses
                                                and Charges
       (b)  Certain information regarding
            periodic payment certificates...  Not Applicable
       (c)  Certain percentages.............  Summary of Essential
                                              Information,
                                                Offering Price, Total
                                              Reinvestment
                                                Plan
       (d)  Price differences...............  Volume and Other Discounts
       (e)  Other loads, fees, expenses.....  Certificates
       (f)  Certain profits receivable
            by depositors, principal
            underwriters, trustee or
            affiliated persons..............  Sponsor's and Underwriters'
                                              Profits
       (g)  Ratio of annual charges
            to income.......................  Not Applicable
  14.  Issuance of trust's securities......   Organization, Certificates
  15.  Receipt and handling of payments
       from purchasers...................     Organization
  16.  Acquisition and disposition of
       underlying securities.............     Organization, Objectives,
                                              Portfolio,
                                                Portfolio Supervision
  17.  Withdrawal or redemption............   Comparison of Public Offering
                                              Price,
                                                Sponsor's Repurchase Price and
                                                Redemption Price, Sponsor
                                                Repurchase, Trustee Redemption
  18.  (a)  Receipt, custody and
            disposition of income...........  Distribution Elections, Interest
                                              and
                                                Principal Distributions,
                                              Records,
                                                Total Reinvestment Plan
       (b)  Reinvestment of distributions...  Total Reinvestment Plan
       (c)  Reserves or special funds.......  Interest and Principal
                                              Distributions
       (d)  Schedule of distributions.......  Not Applicable
  19.  Records, accounts and reports.......   Records, Total Reinvestment Plan
  20.  Certain miscellaneous provisions
       of trust agreement................     Trust Agreement, Amendment and
                                                Termination
       (a)  Amendment.......................    "
       (b)  Termination.....................    "
       (c)  and (d) Trustee, removal and
            successor.......................  The Trustee
       (e)  and (f) Depositor, removal
            and successor...................  The Sponsor
  21.  Loans to security holders...........   Not Applicable
  22.  Limitations on liability............   The Sponsor, The Trustee,
                                                The Evaluator
  23.  Bonding arrangements................   Part II--Item A
  24.  Other material provisions
       of trust agreement................     Not Applicable


         III.  Organization, Personnel and Affiliated Persons of Depositor

  25.  Organization of depositor...........   The Sponsor
  26.  Fees received by depositor..........   Not Applicable
  27.  Business of depositor...............   The Sponsor
  28.  Certain information as to
       officials and affiliated
       persons of depositor..............     Part II--Item C
  29.  Voting securities of depositor......   Not Applicable
  30.  Persons controlling depositor.......     "
  31.  Payments by depositor for certain
       services rendered to trust........       "
  32.  Payment by depositor for certain
       other services rendered to trust..       "
  33.  Remuneration of employees of
     depositor for certain services
     rendered to trust...................       "
  34.  Remuneration of other persons for
     certain services rendered to trust..       "


                  IV.  Distribution and Redemption of Securities

  35.  Distribution of trust's
       securities by states..............     Distribution of Units
  36.  Suspension of sales of
       trust's securities................     Not Applicable
  37.  Revocation of authority
       to distribute.....................       "
  38.  (a)  Method of distribution..........  Distribution of Units, Total
                                                Reinvestment Plan
       (b)  Underwriting agreements.........    "
       (c)  Selling agreements..............    "
  39.  (a)  Organization of principal
            underwriters....................  The Sponsor
       (b)  N.A.S.D. membership of
            principal underwriters..........    "
  40.  Certain fees received by
       principal underwriters............     Not Applicable
  41.  (a)  Business of principal
            underwriters....................  The Sponsor
       (b)  Branch offices of principal
            underwriters....................  Not Applicable
       (c)  Salesmen of principal
            underwriters....................    "
  42.  Ownership of trust's
       securities by certain persons.....       "
  43.  Certain brokerage commissions
       received by principal
       underwriters......................       "
  44.  (a)  Method of valuation.............  Summary of Essential
                                              Information,
                                                Offering Price, Accrued
                                              Interest,
                                                Volume and Other Discounts,
                                                Total Reinvestment Plan,
                                                Distribution of Units
       (b)  Schedule as to offering price...  Not Applicable
       (c)  Variation in offering price
            to certain persons..............  Distribution of Units, Total
                                                Reinvestment Plan, Volume and
                                                Other Discounts
  45.  Suspension of redemption rights.....   Trustee Redemption

  46.  (a)  Redemption valuation............  Comparison of Public Offering
                                              Price,
                                                Sponsor's Repurchase Price and
                                                Redemption Price, Trustee
                                              Redemption
       (b)  Schedule as to
            redemption price................  Not Applicable
  47.  Maintenance of position in
       underlying securities.............     Comparison of Public Offering
                                              Price,
                                                Sponsor's Repurchase Price and
                                                Redemption Price, Sponsor
                                                Repurchase, Trustee Redemption


                V.  Information Concerning the Trustee or Custodian

  48.  Organization and regulation
       of trustee........................     The Trustee
  49.  Fees and expenses of trustee........   Trust Expenses and Charges
  50.  Trustee's lien......................     "


          VI.  Information Concerning Insurance of Holders of Securities

  51.  Insurance of holders of
       trust's securities................     Not Applicable


                            VII.  Policy of Registrant

  52.  (a)  Provisions of trust agreement
            with respect to selection or
            elimination of underlying
            securities......................  Objectives, Portfolio, Portfolio
                                                Supervision
       (b)  Transactions involving
            elimination of underlying
            securities......................  Not Applicable
       (c)  Policy regarding substitution
            or elimination of underlying
            securities......................  Objectives, Portfolio, Portfolio
                                                Supervision, Substitution of
                                              Bonds
       (d)  Fundamental policy not
            otherwise covered...............  Not Applicable
  53.  Tax status of trust.................   Tax Status


                   VIII.  Financial and Statistical Information

  54.  Trust's securities during
       last ten years....................     Not Applicable
  55.  Hypothetical account for issuers
       of periodic payment plans.........       "
  56.  Certain information regarding
       periodic payment certificates.....       "
  57.  Certain information regarding
       periodic payment plans............       "
  58.  Certain other information
       regarding periodic payment plans..       "
  59.  Financial Statements
     (Instruction 1(c) to Form S-6)......     Statement of Financial Condition

<PAGE>


                 Note:  Part A of This Prospectus May Not Be     
                        Distributed Unless Accompanied by Part B.


                            MUNICIPAL SECURITIES TRUST

                                     SERIES 38

    __________________________________________________________________
       

          The Trust is a unit investment trust designated Series 38
    ("Municipal Trust") with an underlying portfolio of long-term tax-exempt
    bonds issued by or on behalf of states, municipalities and public
    authorities, and was formed to preserve capital and to provide interest
    income (including, where applicable, earned original issue discount)
    which, in the opinions of bond counsel to the respective issuers, is, with
    certain exceptions, currently exempt from regular Federal income tax
    (including where applicable earned original discount) under existing law
    but may be subject to state and local taxes.  Such interest income may,
    however, be a specific preference item for purposes of Federal individual
    and/or corporate alternative minimum tax.  Investors may recognize taxable
    capital gain upon maturity or earlier redemption of the underlying bonds. 
    (See "Tax Status" and "The Trust--Portfolio" in Part B of this
    Prospectus.)  The Sponsor is Bear, Stearns & Co. Inc.  The value of the
    Units of the Trust will fluctuate with the value of the underlying bonds. 
    Minimum purchase:  1 Unit. 

    __________________________________________________________________


          This Prospectus consists of two parts.  Part A contains the Summary
    of Essential Information as of June 30, 1994 (the "Evaluation Date"), a
    summary of certain specific information regarding the Trust and audited
    financial statements of the Trust, including the related portfolio, as of
    the Evaluation Date.  Part B of this Prospectus contains a general summary
    of the Trust. 
        
                    Investors should retain both parts of this
                         Prospectus for future reference.

    __________________________________________________________________
     THESE SECURITIES HAVE NOT BEEN APPROVED OR DISAPPROVED BY THE SECURITIES
     AND EXCHANGE COMMISSION OR ANY STATE SECURITIES COMMISSION NOR HAS THE
     COMMISSION OR ANY STATE SECURITIES COMMISSION PASSED UPON THE ACCURACY OR
     ADEQUACY OF THIS PROSPECTUS.  ANY REPRESENTATION TO THE CONTRARY IS A
     CRIMINAL OFFENSE.
       
                     Prospectus Part A Dated October 28, 1994
        
    <PAGE>
       
          THE TRUST.  The Trust is a unit investment trust formed to preserve
    capital and to provide interest income (including, where applicable,
    earned original issue discount) which, in the opinions of bond counsel to
    the respective issuers, is, with certain exceptions, currently exempt from
    regular federal income tax under existing law through investment in a
    fixed, diversified portfolio of long-term bonds (the "Bonds") issued by or
    on behalf of states, municipalities and public authorities.  A Trust
    designated as a short/intermediate-term trust must have a dollar-weighted
    average portfolio maturity of more than two years but less than five
    years; a Trust designated as an intermediate-term trust must have a
    dollar-weighted average portfolio maturity of more than three years but
    not more than ten years; a Trust designated as an intermediate/long-term
    trust must have a dollar-weighted average portfolio maturity of more than
    ten years but less than fifteen years; and a Trust designated as a long-
    term trust must have a dollar-weighted average portfolio maturity of more
    than ten years.  Although the Supreme Court has determined that Congress
    has the authority to subject interest on bonds such as the Bonds in the
    Trust to regular federal income taxation, existing law excludes such
    interest from regular federal income tax.  Such interest income may,
    however, be subject to the federal corporate alternative minimum tax and
    to state and local taxes.  (See "Description of Portfolio" in this Part A
    for a description of those Bonds which pay interest income subject to the
    federal individual alternative minimum tax.  See also "Tax Status" in
    Part B of this Prospectus.)  Some of the Bonds in the portfolio may be
    "Zero Coupon Bonds", which are original issue discount bonds that provide
    for payment at maturity at par value, but do not provide for the payment
    of any current interest.  Some of the Bonds in the portfolio may have been
    purchased at an aggregate premium over par.  Some of the Bonds in the
    Trust have been issued with optional refunding or refinancing provisions
    ("Refunded Bonds") whereby the issuer of the Bond has the right to call
    such Bond prior to its stated maturity date (and other than pursuant to
    sinking fund provisions) and to issue new bonds ("Refunding Bonds") in
    order to finance the redemption.  Issuers typically utilize refunding
    calls in order to take advantage of lower interest rates in the
    marketplace.  Some of these Refunded Bonds may be called for redemption
    pursuant to pre-refunding provisions ("Pre-Refunded Bonds") whereby the
    proceeds from the issue of the Refunding Bonds are typically invested in
    government securities in escrow for the benefit of the holders of the Pre-
    Refunded Bonds until the refunding call date.  Usually, Pre-Refunded Bonds
    will bear a triple-A rating because of this escrow.  The issuers of Pre-
    Refunded Bonds must call such Bonds on their refunding call date. 
    Therefore, as of such date, the Trust will receive the call price for such
    bonds but will cease receiving interest income with respect to them.  For
    a list of those Bonds which are Pre-Refunded Bonds, if any, as of the
    Evaluation Date, see "Notes to Financial Statements" in this Part A.  All
    of the Bonds in the Trust were rated "A" or better by Standard & Poor's
    Corporation or Moody's Investors Service, Inc. at the time originally
    deposited in the Trust.  For a discussion of the significance of such
    ratings see "Description of Bond Ratings" in Part B of this Prospectus and
    for a list of ratings on the Evaluation Date see the "Portfolio".  The
    payment of interest and preservation of capital are, of course, dependent
    upon the continuing ability of the issuers of the Bonds to meet their
    obligations.  There can be no assurance that the Trust's objectives will
    be achieved.  Investment in the Trust should be made with an understanding
    of the risks which an investment in long-term fixed rate obligations may
    entail, including the risk that the value of the underlying portfolio will
    decline with increases in interest rates, and that the value of Zero
    Coupon Bonds is subject to greater fluctuations than coupon bonds in
    response to changes in interest rates.  Each Unit in the Trust represents
    a 1/1990th undivided interest in the principal and net income of the
    Trust.  The principal amount of Bonds deposited in the Trust per Unit is
    reflected in the Summary of Essential Information.  (See "The Trust--
    Organization" in Part B of this Prospectus.)  The Units being offered
    hereby are issued and outstanding Units which have been purchased by the
    Sponsor in the secondary market. 

          PUBLIC OFFERING PRICE.  The secondary market Public Offering Price
    of each Unit is equal to the aggregate bid price of the Bonds in the Trust
    divided by the number of Units outstanding, plus a sales charge of 4.9% of
    the Public Offering Price, which is the same as 5.152% of the net amount
    invested in Bonds per Unit.  In addition, accrued interest to expected
    date of settlement is added to the Public Offering Price.  If Units had
    been purchased for sale on the Evaluation Date, the Public Offering Price
    per Unit would have been $1,015.46 plus accrued interest of $14.80 under
    the monthly distribution plan, $21.50 under the semi-annual distribution
    plan and $62.75 under the annual distribution plan, for a total of
    $1,030.26, $1,036.96 and $1,078.21, respectively.  The Public Offering
    Price per Unit can vary on a daily basis in accordance with fluctuations
    in the aggregate bid price of the Bonds.  (See the "Summary of Essential
    Information" and "Public Offering--Offering Price" in Part B of this
    Prospectus.)

          ESTIMATED LONG TERM RETURN AND ESTIMATED CURRENT RETURN.  Units of
    each Trust are offered to investors on a "dollar price" basis (using the
    computation method previously described under "Public Offering Price") as
    distinguished from a "yield price" basis often used in offerings of tax
    exempt bonds (involving the lesser of the yield as computed to maturity of
    bonds or to an earlier redemption date).  Since they are offered on a
    dollar price basis, the rate of return on an investment in Units of each
    Trust is measured in terms of "Estimated Current Return" and "Estimated
    Long Term Return".

          Estimated Long Term Return is calculated by:  (1) computing the
    yield to maturity or to an earlier call date (whichever results in a lower
    yield) for each Bond in the Trust's portfolio in accordance with accepted
    bond practices, which practices take into account not only the interest
    payable on the Bond but also the amortization of premiums or accretion of
    discounts, if any; (2) calculating the average of the yields for the Bonds
    in the Trust's portfolio by weighing each Bond's yield by the market value
    of the Bond and by the amount of time remaining to the date to which the
    Bond is priced (thus creating an average yield for the portfolio of the
    Trust); and (3) reducing the average yield for the portfolio of the Trust
    in order to reflect estimated fees and expenses of the Trust and the
    maximum sales charge paid by investors.  The resulting Estimated Long Term
    Return represents a measure of the return to investors earned over the
    estimated life of the Trust.  (For the Estimated Long Term Return to
    Certificateholders under the monthly, semi-annual and annual distribution
    plans, see "Summary of Essential Information".)

          Estimated Current Return is a measure of the Trust's cash flow. 
    Estimated Current Return is computed by dividing the Estimated Net Annual
    Interest Income per Unit by the Public Offering Price per Unit.  In
    contrast to the Estimated Long Term Return, the Estimated Current Return
    does not take into account the amortization of premium or accretion of
    discount, if any, on the Bonds in the portfolio of the Trust.  Moreover,
    because interest rates on Bonds purchased at a premium are generally
    higher than current interest rates on newly issued bonds of a similar type
    with comparable rating, the Estimated Current Return per Unit may be
    affected adversely if such Bonds are redeemed prior to their maturity.  

          The Estimated Net Annual Interest Income per Unit of the Trust will
    vary with changes in the fees and expenses of the Trustee and the
    Evaluator applicable to the Trust and with the redemption, maturity, sale
    or other disposition of the Bonds in the Trust.  The Public Offering Price
    will vary with changes in the bid prices of the Bonds.  Therefore, there
    is no assurance that the present Estimated Current Return or Estimated
    Long Term Return will be realized in the future.  (For the Estimated
    Current Return to Certificateholders under the monthly, semi-annual and
    annual distribution plans, see "Summary of Essential Information".  See
    "Estimated Long Term Return and Estimated Current Return" in Part B of
    this Prospectus.)

          A schedule of cash flow projections is available from the Sponsor
    upon request.

          DISTRIBUTIONS.  Distributions of interest income, less expenses,
    will be made by the Trust either monthly, semi-annually or annually
    depending upon the plan of distribution applicable to the Unit purchased. 
    A purchaser of a Unit in the secondary market will initially receive
    distributions in accordance with the plan selected by the prior owner of
    such Unit and may thereafter change the plan as provided in "Interest and
    Principal Distributions" in Part B of this Prospectus.  Distributions of
    principal, if any, will be made semi-annually on June 15 and December 15
    of each year.  (See "Rights of Certificateholders--Interest and Principal
    Distributions" in Part B of this Prospectus.  For estimated monthly, semi-
    annual and annual interest distributions, see "Summary of Essential
    Information".)

          MARKET FOR UNITS.  The Sponsor, although not obligated to do so,
    intends to maintain a market for the Units at prices based upon the
    aggregate bid price of the Bonds in the portfolio of the Trust.  The
    Secondary Market repurchase price is based on the aggregate bid price of
    the Bonds in the Trust portfolio, and the reoffer price is based on the
    aggregate bid price of the Bonds plus a sales charge of 4.9% of the Public
    Offering Price (5.152% of the net amount invested) plus net accrued
    interest.  If such a market is not maintained, a Certificateholder will be
    able to redeem his Units with the Trustee at a price also based upon the
    aggregate bid price of the Bonds.  (See "Sponsor Repurchase" and "Public
    Offering--Offering Price" in Part B of this Prospectus.)

          TOTAL REINVESTMENT PLAN.  Certificateholders under the semi-annual
    and annual plans of distribution have the opportunity to have their
    interest distributions and principal distributions, if any, reinvested in
    available series of "Insured Municipal Securities Trust" or "Municipal
    Securities Trust."  (See "Total Reinvestment Plan" and for residents of
    Texas, see "Total Reinvestment Plan for Texas Residents" in Part B of this
    Prospectus.)  The Plan is not designed to be a complete investment
    program. 
        

    <PAGE>
       
                            MUNICIPAL SECURITIES TRUST
                                     SERIES 38

               SUMMARY OF ESSENTIAL INFORMATION AS OF JUNE 30, 1994

    Date of Deposit:  July 21, 1988            Weighted Average Life to
    Principal Amount of Bonds ...$1,900,000     Maturity:  14.9 Years.
    Number of Units .............1,990         Minimum Value of Trust:
    Fractional Undivided Inter-                 Trust may be terminated if
      est in Trust per Unit .....1/1990         value of Trust is less than
    Principal Amount of                         $800,000 in principal amount of
      Bonds per Unit ............$954.77        Bonds.
    Secondary Market Public                    Mandatory Termination Date:
      Offering Price**                          The earlier of December 31,
      Aggregate Bid Price                       2037 or the disposition of the
        of Bonds in Trust .......$1,921,769+++  last Bond in the Trust.
      Divided by 1,990 Units ....$965.71       Trustee***:  United States Trust
      Plus Sales Charge of 4.9%                  Company of New York.
        of Public Offering Price $49.76        Trustee's Annual Fee:  Monthly
      Public Offering Price                     plan $1.05 per $1,000; semi-
        per Unit ................$1,015.46+     annual plan $.60 per $1,000;
    Redemption and Sponsor's                    and annual plan is $.35 per
      Repurchase Price                          $1,000.
      per Unit ..................$965.71+      Evaluator:  Kenny S&P Evaluation
                                          +++   Services. 
                                          ++++ Evaluator's Fee for Each
    Excess of Secondary Market                  Evaluation:  Minimum of $15
      Public Offering Price                     plus $.25 per each issue of
      over Redemption and                       Bonds in excess of 50 issues
      Sponsor's Repurchase                      (treating separate maturities
      Price per Unit ............$49.76++++     as separate issues).
    Difference between Public                  Sponsor:  Bear, Stearns & Co.
      Offering Price per Unit                   Inc.
      and Principal Amount per                 Sponsor's Annual Fee:  Maximum of
      Unit Premium/(Discount) ...$60.69         $.25 per $1,000 principal
    Evaluation Time:  4:00 p.m.                 amount of Bonds (see "Trust
      New York Time.                            Expenses and Charges" in Part B
    Minimum Principal Distribution:             of this Prospectus).
      $1.00 per Unit.


        PER UNIT INFORMATION BASED UPON INTEREST DISTRIBUTION PLAN ELECTED

                                            Monthly   Semi-Annual   Annual
                                            Option      Option      Option

    Gross annual interest income# ......... $84.04      $84.04      $84.04
    Less estimated annual fees and
      expenses ............................   2.41        1.83        1.56
    Estimated net annual interest           ______      ______      ______
      income (cash)# ...................... $81.63      $82.21      $82.48
    Estimated interest distribution# ......   6.80       41.10       82.48
    Estimated daily interest accrual# .....  .2267       .2283       .2291
    Estimated current return#++ ...........  8.04%       8.10%       8.12%
    Estimated long term return++ ..........  5.64%       5.69%       5.72%
    Record dates .......................... 1st of      Dec. 1 and   Dec. 1
                                            each month  June 1
    Interest distribution dates ........... 15th of     Dec. 15 and  Dec. 15
                                            each month  June 15
        
    <PAGE>
       *  The Date of Deposit is the date on which the Trust Agreement was
          signed and the deposit of the Bonds with the Trustee made. 

      **  For information regarding offering price per unit and applicable
          sales charge under the Total Reinvestment Plan, see "Total
          Reinvestment Plan" in Part B of this Prospectus. 

     ***  The Trustee maintains its corporate trust office at 770 Broadway,
          New York, New York 10003 (tel. no.:  1-800-428-8890).  For
          information regarding redemption by the Trustee, see "Trustee
          Redemption" in Part B of this Prospectus.
       
       +  Plus accrued interest to expected date of settlement (approximately
          five business days after purchase) of $14.80 monthly, $21.50 semi-
          annually and $62.75 annually. 
        
      ++  The estimated current return and estimated long term return are
          increased for transactions entitled to a discount (see "Employee
          Discounts" in Part B of this Prospectus), and are higher under the
          semi-annual and annual options due to lower Trustee's fees and
          expenses.

     +++  Based solely upon the bid side evaluation of the underlying Bonds
          (including, where applicable, undistributed cash in the principal
          account).  Upon tender for redemption, the price to be paid will be
          calculated as described under "Trustee Redemption" in Part B of this
          Prospectus. 

    ++++  See "Comparison of Public Offering Price, Sponsor's Repurchase Price
          and Redemption Price" in Part B of this Prospectus. 

       #  Does not include income accrual from original issue discount bonds,
          if any.

    <PAGE>
       
                          INFORMATION REGARDING THE TRUST
                                AS OF JUNE 30, 1994


    DESCRIPTION OF PORTFOLIO*

          The portfolio of the Trust consists of 11 issues representing
    obligations of issuers located in 9 states.  The Sponsor has not
    participated as a sole underwriter or manager, co-manager or member of an
    underwriting syndicate from which any of the initial aggregate principal
    amount of the Bonds were acquired.  None of the Bonds are obligations of
    state and local housing authorities; approximately 10.5% are hospital
    revenue bonds; approximately 15.8% are issued in connection with the
    financing of nuclear generating facilities; and none are "mortgage
    subsidy" bonds.  All of the Bonds in the Trust are subject to redemption
    prior to their stated maturity dates pursuant to sinking fund or call
    provisions.  The Bonds may also be subject to other calls, which may be
    permitted or required by events which cannot be predicted (such as
    destruction, condemnation, termination of a contract, or receipt of excess
    or unanticipated revenues).  One issue representing $100,000 of the
    principal amount of the Bonds is a general obligation bond.  All 10 of the
    remaining issues representing $1,800,000 of the principal amount of the
    Bonds are payable from the income of a specific project or authority and
    are not supported by the issuer's power to levy taxes.  The portfolio is
    divided for purpose of issue as follows:  Airport Facilities 3, Coal
    Power 1, Hospital 1, Industrial Development 1, Nuclear Power 2, Parking 1
    and Toll 1.  For an explanation of the significance of these factors see
    "The Trust--Portfolio" in Part B of this Prospectus. 


    *     Changes in the Trust Portfolio:  From July 1, 1994 to September 23,
          1994, 64 Units have been redeemed from the Trust.


          As of June 30, 1994, $500,000 (approximately 26.3% of the aggregate
    principal amount of the Bonds) were original issue discount bonds.  Of
    these original issue discount bonds, none are Zero Coupon Bonds.  None of
    the aggregate principal amount of the Bonds in the Trust were purchased at
    a "market" discount from par value at maturity, approximately 73.7% were
    purchased at a premium and none were purchased at par.  For an explanation
    of the significance of these factors see "Discount and Zero Coupon Bonds"
    in Part B of this Prospectus.
        
          None of the Bonds in the Trust are subject to the federal individual
    alternative minimum tax under the Tax Reform Act of 1986.  See "Tax
    Status" in Part B of this Prospectus.

    <PAGE>
                       FINANCIAL AND STATISTICAL INFORMATION


    Selected data for each Unit outstanding for the periods listed below:

                                                                    Distribu-
                                                                    tions of
                                          Distributions of Interest Principal
                                         During the Period (per Unit) During
                             Net Asset*            Semi-              the
                  Units Out-   Value     Monthly   Annual   Annual   Period
    Period Ended   standing   Per Unit   Option    Option   Option  (Per Unit)
       

    June 30, 1992    2,000   $1,039.59   $81.24    $81.84   $82.15    -0-  
    June 30, 1993    1,990    1,046.43    81.20     81.83    82.04    -0-  
    June 30, 1994    1,990      985.97    81.60     82.19    82.31    -0-  


    *     Net Asset Value per Unit is calculated by dividing net assets as
          disclosed in the "Statement of Net Assets" by the number of Units
          outstanding as of the date of the Statement of Net Assets.  See
          Note 5 of Notes to Financial Statements for a description of the
          components of Net Assets.
        
<PAGE>

Independent Auditors' Report


The Sponsor, Trustee and Certificateholders
Municipal Securities Trust, Series 38:


We have audited the accompanying statement of net assets, including the
portfolio, of Municipal Securities Trust, Series 38 as of June 30, 1994,
and the related statements of operations, and changes in net assets for
each of the years in the three year period then ended .  These financial
statements are the responsibility of the Trustee (see note 2).  Our
responsibility is to express an opinion on these financial statements
based on our audits.

We conducted our audits in accordance with generally accepted auditing
standards.  Those standards require that we plan and perform the audit to
obtain reasonable assurance about whether the financial statements are
free of material misstatement.  An audit includes examining, on a test
basis, evidence supporting the amounts and disclosures in the financial
statements.  Our procedures included confirmation of securities owned
as of June 30, 1994, by correspondence with the Trustee.  An audit also
includes assessing the accounting principles used and significant
estimates made by management, as well as evaluating the overall financial
statement presentation.  We believe that our audits provide a reasonable
basis for our opinion.

In our opinion, the financial statements referred to above present
fairly, in all material respects, the financial position of Municipal
Securities Trust, Series 38 as of June 30, 1994, and the results of
its operations and the changes in its net assets for each of the years
in the three year period then ended, in conformity with generally
accepted accounting principles.




KPMG Peat Marwick LLP


New York, New York
September 15, 1994
<PAGE>




                MUNICIPAL SECURITIES TRUST, SERIES 38

                   MUNICIPAL SECURITIES TRUST, SERIES 38

                        Statement of Net Assets

                           June 30, 1994

Investments in marketable securities,
   at market value (cost    $1,940,612)                 $   1,930,392

Excess of other assets over total liabilities                  31,683
                                                         ------------

Net assets (1,990 units of fractional undivided
   interest outstanding, $985.97 per  unit)             $   1,962,075
                                                         ============

See accompanying notes to financial statements.
<PAGE>
<TABLE> 
                          MUNICIPAL SECURITIES TRUST,SERIES 38

                              Statements of Operations
<CAPTION>
                                                      Years ended June 30,
                                             ---------- -- -----------  -- -----------
                                                1994          1993            1992
                                             ----------    -----------     -----------
<S>                                       <C>              <C>             <C> 
Investment income - interest              $    167,250        167,250         167,251
                                             ----------    -----------     -----------

Expenses:
   Trustee's fees                                3,022          3,156           3,149
   Evaluator's fees                              1,047            995             882
   Sponsor's advisory fee                          475            475             475
                                             ----------    -----------     -----------

          Total expenses                         4,544          4,626           4,506
                                             ----------    -----------     -----------

          Investment income, net               162,706        162,624         162,745
                                             ----------    -----------     -----------

Realized and unrealized gain (loss)
   on investments:
     Unrealized appreciation
        (depreciation) for the year           (120,293)        13,715          57,418
                                             ----------    -----------     -----------

          Net gain (loss) on
            investments                       (120,293)        13,715          57,418
                                             ----------    -----------     -----------

          Net increase in net
            assets resulting
            from operations               $    162,706        176,339         162,745
                                             ==========    ===========     ===========

See accompanying notes to financial statements.
</TABLE> 

<PAGE>
<TABLE> 
                       MUNICIPAL SECURITIES TRUST, SERIES 38

                        Statements of Changes in Net Assets
<CAPTION>
                                                        Years ended June 30,
                                           ------------  -- ------------  --- -------------
                                               1994             1993              1992
                                           ------------     ------------      -------------
<S>                                      <C>                <C>               <C> 
Operations:
   Investment income, net                $     162,706          162,624            162,745
   Unrealized appreciation
     (depreciation) for the year              (120,293)          13,715             57,418
                                           ------------     ------------      -------------

               Net increase in net
                 assets resulting
                 from operations                42,413          176,339            220,163
                                           ------------     ------------      -------------

Distributions to certificateholders
    of investment income                       162,733          162,621            162,694

Redemptions:
    Interest                                    -                   163             -
    Principal                                   -                10,332             -
                                           ------------     ------------      -------------

               Total distributions
                and redemptions                162,733          173,116            162,694
                                           ------------     ------------      -------------

               Total increase (decrease)      (120,320)           3,223             57,469

Net assets at beginning of year              2,082,395        2,079,172          2,021,703
                                           ------------     ------------      -------------

Net assets at end of year (including
   undistributed net investment
   income of $40,306,    $40,333 and
   $40,493, respectively)                $   1,962,075        2,082,395          2,079,172
                                           ============     ============      =============

See accompanying notes to financial statements.
</TABLE> 
<PAGE>

Notes to Financial Statements

June 30, 1994, 1993 and 1992


(1)  Organization and Financial and Statistical Information

Municipal Securities Trust, Series 38 (Trust) was organized on July 21, 
1988 by Bear Stearns and Co. Inc. under the laws of the State of New 
York by a Trust Indenture and Agreement, and is registered under the 
Investment Company Act of 1940.

(2) Summary of Significant Accounting Policies

United States Trust Company of New York (Trustee) has custody of and
responsibility for the accounting records and financial statements of the
Trust and is responsible for establishing and maintaining a system of 
internal control related thereto.

The Trustee is also responsible for all estimates of expenses and accruals
reflected in the Trust's financial statements.  The accompanying financial
statements have been adjusted to record the unrealized appreciation
(depreciation) of investments and to record interest income and 
expenses on the accrual basis.

Investments are carried at market value which is determined by either 
Standard and Poor's Corporation or Moody's Investors Service, Inc. 
(Evaluator), as discussed in the footnotes to the portfolio.  The 
market value of the investment is based upon the bid prices for the 
bonds at the end of the period, except that the market value on the
date of deposit represents the cost to the Trust based on the offering 
prices for investments at that date.

The difference between cost and market value is reflected as unrealized
appreciation (depreciation) of investments.  Securities transactions are
recorded on the trade date.  Realized gains (losses) from securities
transactions are determined on the basis of average cost of the securities
sold or redeemed.

(3) Income Taxes

The Trust is not subject to Federal income taxes as provided for by the
Internal Revenue Code.

(4) Trust Administration

The fees and expenses of the Trust are incurred and paid on the basis set
forth under "Trust Expenses and Charges" in Part B of this Prospectus.

The Trust Indenture and Agreement provides for interest distributions as 
often as monthly (depending upon the distribution plan elected by the
Certificateholders).

The Trust Indenture and Agreement further requires that principal 
received from the disposition of bonds, other than those bonds sold 
in connection with the redemption of units, be distributed to 
Certificateholders.

See "Financial and Statistical Information" in Part A of this Prospectus 
for the amounts of per unit distributions during the years ended June 30, 
1994, 1993 and 1992.

The Trust Indenture and Agreement also requires the Trust to redeem units
tendered.  No units were redeemed in the year ended 1994.  10 units were
redeemed during the year ended June 30, 1993.  No units were
redeemed in the year ended June 30, 1992.

(5)   Net Assets

At June 30, 1994, the net assets of the Trust represented the interests of
Certificateholders as follows:

Original cost to Certificateholders            $       2,042,542
Less initial gross underwriting commission             (100,080)

                                                       1,942,462

Cost of securities sold or called                         (1,850)
Net unrealized depreciation                              (10,220)
Undistributed net investment income                       40,306
Distributions/Redemptions in excess of proceeds
    from bonds sold or called                             (8,623)

            Total                              $       1,962,075


The original cost to Certificateholders, less the initial gross 
underwriting commission, represents the aggregate initial public 
offering price net of the applicable sales charge on 2,000 units of 
fractional undivided interest of the Trust as of the date of deposit.
<PAGE>

<TABLE> 



MUNICIPAL SECURITIES TRUST, SERIES 38

MUNICIPAL SECURITIES TRUST,  SERIES 38
Portfolio
June 30, 1994

<CAPTION>

Port-  Aggregate                                      Coupon Rate/   Redemption Feature
folio  Principal       Name of Issuer       Ratings   Date(s) of     S.F.--Sinking Fund        Market
No.     Amount       and Title of Bonds       (1)     Maturity(2)    Ref.--Refunding(2) (7)    Value(3)
- --     ---------    ---------------------   -------   -----------    ----------------------    ----------
<S>   <C>           <C>                     <C>       <C>            <C>                    <C> 
1     $  200,000    Reg. Arpt. Imprvment.    BA1*     11.250%        No Sinking Fund        $     219,424
                    Corp. Facs. Subleases             11/01/2025     11/01/95 @ 103 Ref.
                    Rev. Bonds, 1985
                    Issue Western Air
                    Lines, Inc. (L.A.
                    Internat'l. Airport)

2        200,000    Douglas Cnty. Colo.       AA*     11.000         10/01/97 @ 100 S.F.          209,764
                    Indus. Dev. Rev.                  10/01/2002     10/01/94 @ 103 Ref.
                    Rfndg. Bonds (Mercy
                    Highlands Ranch Med.
                    Bldg. Prjt.) Series
                    1985 (5)

3        100,000    Burke Cnty. Ga. Dev.      AA-     9.250          1/01/11 @ 100 S.F.           104,557
                    Auth. Poll. Cntrl.                1/01/2016      1/01/95 @ 102 Ref.
                    Rev. Bonds
                    (Oglethorpe Pwr.
                    Corp. Vogtle Prjt.)
                    Series 1985

4        200,000    Michigan State Hosp.      AAA     10.000         10/01/01 @ 100 S.F.          216,854
                    Finc. Auth. Hosp.                 10/01/2016     10/01/95 @ 102 Ref.
                    Rev. Rfndg. Bonds
                    (Harper-Grace & Huron
                    Valley Hosps.) Series
                    1985 A (5)

5        200,000    N.C. Eastern Muni.       AAA*     4.500          7/01/20 @ 100 S.F.           153,230
                    Pwr. Agncy. Pwr. Sys.             1/01/2024      1/01/2022 @ 100 Ref.
                    Rev. Rfndg. Bonds
                    Series 1987A (5)

6        200,000    Tulsa Ok. Muni. Arpt.    BAA2*    9.375          6/01/03 @ 100 S.F.           213,674
                    Trust Rev. Indus.                 6/01/2004      12/01/95 @ 102 Ref.
                    Dev. Rev. Bonds -
                    American Airlines

7        200,000    Lancaster Penn. Prkg.      A      9.500          1/01/06 @ 100 S.F.           214,614
                    Auth. Prkg. Rfndg.                1/01/2012      1/01/96 @ 100 Ref.
                    Bonds Series 1985

8        100,000    Dallas-Ft. Worth Tx.      A1*     11.000         11/01/05 @ 100 S.F.          105,845
                    Reg. Arpt. Joint Rev.             11/01/2012     11/01/94 @ 102.5 Ref.
                    Rfndg. Bonds Series
                    1984

9        200,000    Harris Cnty. Tx. Toll    AAA      9.250          8/01/08 @ 100 S.F.           211,386
                    Rd. Unlmtd. Tax and               8/01/2014      2/01/95 @ 103 Ref.
                    Subordinate Lien Rev.
                    Rfndg. Bonds Series
                    1985F (5)

10       100,000    Houston Tx. Ltd. Tax      AA*     5.250          No Sinking Fund               94,418
                    Pub. Improvmt. Bonds              3/01/2007      3/01/97 @ 102 Ref.
                    Gen. Oblig.

11       200,000    Intermountain Pwr.        AA      6.000          7/01/20 @ 100 S.F.           186,626
       ---------                                                                               ----------
                    Agncy. Pwr. Supl.                 7/01/2021      7/01/95 @ 100 Ref.
                    Rev. Rfndg. Bonds
                    1985 Series I

    $  1,900,000                                                                            $   1,930,392
       =========                                                                               ==========

See accompanying footnotes to portfolio and notes to financial statements.
</TABLE> 

<PAGE>

Footnotes to Portfolio

June 30, 1994


(1)   All ratings are by Standard & Poor's Corporation except for
those identified by an asterisk (*) which are by Moody's Investors Service,
Inc.  A brief description of the ratings symbols and their meanings is set
forth under "Description of Bond Ratings" in Part B of this Prospectus.

(2)  See "The Trust - Portfolio" in Part B of this Prospectus for an
explanation of redemption features.  See "Tax Status" in Part B of this
Prospectus for a statement of the Federal tax consequences to a
Certificateholder upon the sale, redemption or maturity of a bond.

(3)  At June 30, 1994, the net unrealized depreciation of all the
bonds was comprised of the following:

Gross unrealized appreciation                $        96,290
Gross unrealized depreciation                       (106,510)

Net unrealized depreciation                  $       (10,220)

(4)  The annual interest income, based upon bonds held at June 30,
1994, to the Trust is $167,250.

(5)  The bonds have been prerefunded and will be redeemed at the
next refunding call date.

(6) Bonds sold or called after June 30, 1994 are noted in a
footnote "Changes in Trust Portfolio" under "Description of Portfolio" 
in Part A of this Prospectus.

(7) The Bonds may also be subject to other calls, which may be
permitted or required by events which cannot be predicted (such as
destruction, condemnation, termination of a contract, or receipt of 
excess or unanticipated revenues).
<PAGE>


                 Note:  Part A of this Prospectus May Not Be     
                        Distributed Unless Accompanied by Part B.


                            MUNICIPAL SECURITIES TRUST

                               66TH DISCOUNT SERIES
                              (MULTIPLIER PORTFOLIO)

    __________________________________________________________________

       
               The Trust is a unit investment trust designated 66th Discount
    Series ("Municipal Discount Trust") with an underlying portfolio of long-
    term tax-exempt bonds and was formed to preserve capital and to provide
    interest income (including, where applicable, earned original issue
    discount) which, in the opinions of bond counsel to the respective
    issuers, is, with certain exceptions, currently exempt from regular
    federal income tax under existing law but may be subject to state and
    local taxes.  (See "Tax Status" and "The Trust--Portfolio" in Part B of
    this Prospectus.)  The Sponsor is Bear, Stearns & Co. Inc.  The value of
    the Units of the Trust will fluctuate with the value of the bonds. 
    Minimum purchase:  1 Unit.

    __________________________________________________________________


               This Prospectus consists of two parts.  Part A contains the
    Summary of Essential Information as of June 30, 1994 (the "Evaluation
    Date"), a summary of certain specific information regarding the Trust and
    audited financial statements of the Trust, including the related
    portfolio, as of the Evaluation Date.  Part B of this Prospectus contains
    a general summary of the Trust. 

                    Investors should retain both parts of this
                         Prospectus for future reference.

    __________________________________________________________________


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

                     Prospectus Part A Dated October 28, 1994


        
    <PAGE>

       
               THE TRUST.  The Trust is a unit investment trust formed to
    preserve capital and to provide interest income (including, where
    applicable, earned original issue discount) which, in the opinions of bond
    counsel to the respective issuers, is, with certain exceptions, currently
    exempt from regular federal income tax under existing law through
    investment in a fixed, diversified portfolio of long-term bonds (the
    "Bonds") issued by or on behalf of states, municipalities and public
    authorities.  Although the Supreme Court has determined that Congress has
    the authority to subject interest on bonds such as the Bonds in the Trust
    to regular federal income taxation, existing law excludes such interest
    from regular federal income tax.  Such interest income may, however, be
    subject to the federal corporate alternative minimum tax and to state and
    local taxes.  (See "Description of Portfolio" in this Part A for a
    description of those Bonds which pay interest income subject to the
    federal individual alternative minimum tax.  See also "Tax Status" in
    Part B of this Prospectus.)  The Bonds were acquired at prices which
    resulted in the portfolio as a whole being purchased at a deep discount
    from par value.  The portfolio may also include bonds issued at a
    substantial original issue discount some of which may be "Zero Coupon
    Bonds", which are original issue discount bonds that provide for payment
    at maturity at par value, but do not provide for the payment of current
    interest.  Some of the Bonds in the portfolio may have been purchased at
    an aggregate premium over par.  Some of the Bonds in the Trust have been
    issued with optional refunding or refinancing provisions ("Refunded
    Bonds") whereby the issuer of the Bond has the right to call such Bond
    prior to its stated maturity date (and other than pursuant to sinking fund
    provisions) and to issue new bonds ("Refunding Bonds") in order to finance
    the redemption.  Issuers typically utilize refunding calls in order to
    take advantage of lower interest rates in the marketplace.  Some of these
    Refunded Bonds may be called for redemption pursuant to pre-refunding
    provisions ("Pre-Refunded Bonds") whereby the proceeds from the issue of
    the Refunding Bonds are typically invested in government securities in
    escrow for the benefit of the holders of the Pre-Refunded Bonds until the
    refunding call date.  Usually, Pre-Refunded Bonds will bear a triple-A
    rating because of this escrow.  The issuers of Pre-Refunded Bonds must
    call such Bonds on their refunding call date.  Therefore, as of such date,
    the Trust will receive the call price for such bonds but will cease
    receiving interest income with respect to them.  For a list of those Bonds
    which are Pre-Refunded Bonds as of the Evaluation Date, if any, see "Notes
    to Financial Statements" in this Part A.  All of the Bonds in the Trust
    were rated "A" or better by Standard & Poor's Corporation or Moody's
    Investors Service, Inc. at the time originally deposited in the Trust. 
    For a discussion of the significance of such ratings see "Description of
    Bond Ratings" in Part B of this Prospectus and for a list of ratings on
    the Evaluation Date see the "Portfolio".  The payment of interest and
    preservation of capital are, of course, dependent upon the continuing
    ability of the issuers of the Bonds to meet their obligations.  There can
    be no assurance that the Trust's objectives will be achieved.  Investment
    in the Trust should be made with an understanding of the risks which an
    investment in long-term fixed rate obligations may entail, including the
    risk that the value of the underlying portfolio will decline with
    increases in interest rates, and that the value of Zero Coupon Bonds is
    subject to greater fluctuations than coupon bonds in response to changes
    in interest rates.  Each Unit in the Trust represents a 1/9990th undivided
    interest in the principal and net income of the Trust.  The principal
    amount of Bonds deposited in the Trust per Unit is reflected in the
    Summary of Essential Information.  (See "The Trust--Organization" in
    Part B of this Prospectus.)  The Units being offered hereby are issued and
    outstanding Units which have been purchased by the Sponsor in the
    secondary market. 

               PUBLIC OFFERING PRICE.  The secondary market Public Offering
    Price of each Unit is equal to the aggregate bid price of the Bonds in the
    Trust divided by the number of Units outstanding, plus a sales charge of
    5.5% of the Public Offering Price, which is the same as 5.820% of the net
    amount invested in Bonds per Unit.  In addition, accrued interest to
    expected date of settlement including earned original issue discount is
    added to the Public Offering Price.  If Units had been purchased on the
    Evaluation Date, the Public Offering Price per Unit would have been
    $543.09 plus accrued interest of $9.14 under the monthly distribution
    plan, $12.60 under the semi-annual distribution plan and $34.91 under the
    annual distribution plan, for a total of $552.23, $555.69 and $578.00,
    respectively.  The Public Offering Price per Unit can vary on a daily
    basis in accordance with fluctuations in the aggregate bid price of the
    Bonds.  (See the "Summary of Essential Information" and "Public Offering--
    Offering Price" in Part B of this Prospectus.)

               ESTIMATED LONG TERM RETURN AND ESTIMATED CURRENT RETURN.  Units
    of each Trust are offered to investors on a "dollar price" basis (using
    the computation method previously described under "Public Offering Price")
    as distinguished from a "yield price" basis often used in offerings of tax
    exempt bonds (involving the lesser of the yield as computed to maturity of
    bonds or to an earlier redemption date).  Since they are offered on a
    dollar price basis, the rate of return on an investment in Units of each
    Trust is measured in terms of "Estimated Current Return" and "Estimated
    Long Term Return". 

               Estimated Long Term Return is calculated by:  (1) computing the
    yield to maturity or to an earlier call date (whichever results in a lower
    yield) for each Bond in the Trust's portfolio in accordance with accepted
    bond practices, which practices take into account not only the interest
    payable on the Bond but also the amortization of premiums or accretion of
    discounts, if any; (2) calculating the average of the yields for the Bonds
    in the Trust's portfolio by weighing each Bond's yield by the market value
    of the Bond and by the amount of time remaining to the date to which the
    Bond is priced (thus creating an average yield for the portfolio of the
    Trust); and (3) reducing the average yield for the portfolio of the Trust
    in order to reflect estimated fees and expenses of the Trust and the
    maximum sales charge paid by investors.  The resulting Estimated Long Term
    Return represents a measure of the return to investors earned over the
    estimated life of the Trust.  (For the Estimated Long Term Return to
    Certificateholders under the monthly, semi-annual and annual distribution
    plans, see "Summary of Essential Information".)

               Estimated Current Return is a measure of the Trust's cash flow. 
    Estimated Current Return is computed by dividing the Estimated Net Annual
    Interest Income per Unit by the Public Offering Price per Unit.  In
    contrast to the Estimated Long Term Return, the Estimated Current Return
    does not take into account the amortization of premium or accretion of
    discount, if any, on the Bonds in the portfolio of the Trust.  Moreover,
    because interest rates on Bonds purchased at a premium are generally
    higher than current interest rates on newly issued bonds of a similar type
    with comparable rating, the Estimated Current Return per Unit may be
    affected adversely if such Bonds are redeemed prior to their maturity.  

               The Estimated Net Annual Interest Income per Unit of the Trust
    will vary with changes in the fees and expenses of the Trustee and the
    Evaluator applicable to the Trust and with the redemption, maturity, sale
    or other disposition of the Bonds in the Trust.  The Public Offering Price
    will vary with changes in the bid prices of the Bonds.  Therefore, there
    is no assurance that the present Estimated Current Return or Estimated
    Long Term Return will be realized in the future.  (For the Estimated
    Current Return to Certificateholders under the monthly, semi-annual and
    annual distribution plans, see "Summary of Essential Information".  See
    "Estimated Long Term Return and Estimated Current Return" in Part B of
    this Prospectus.)

               A schedule of cash flow projections is available from the
    Sponsor upon request. 

               DISTRIBUTIONS.  Distributions of interest income, less
    expenses, will be made by the Trust either monthly, semi-annually or
    annually depending upon the plan of distribution applicable to the Unit
    purchased.  A purchaser of a Unit in the secondary market will initially
    receive distributions in accordance with the plan selected by the prior
    owner of such Unit and may thereafter change the plan as provided under
    "Interest and Principal Distributions" in Part B of the Prospectus. 
    Distributions of principal, if any, will be made semi-annually on June 15
    and December 15 of each year.  (See "Rights of Certificateholders--
    Interest and Principal Distributions" in Part B of this Prospectus.  For
    estimated monthly, semi-annual and annual interest distributions, see
    "Summary of Essential Information.")  

               MARKET FOR UNITS.  The Sponsor, although not obligated to do
    so, intends to maintain a market for the Units at prices based upon the
    aggregate bid price of the Bonds in the portfolio of the Trust.  The
    secondary market repurchase price is based on the aggregate bid price of
    the Bonds in the Trust portfolio, and the reoffer price is based on the
    aggregate bid price of the Bonds plus a sales charge of 5.5% (5.820% of
    the net amount invested) plus net accrued interest.  If such a market is
    not maintained, a Certificateholder will be able to redeem his Units with
    the Trustee at a price also based upon the aggregate bid price of the
    Bonds.  (See "Sponsor Repurchase" and "Public Offering--Offering Price" in
    Part B of this Prospectus.)

               TOTAL REINVESTMENT PLAN.  Certificateholders under the semi-
    annual and annual plans of distribution have the opportunity to have their
    interest distributions and principal distributions, if any, reinvested in
    available series of "Municipal Securities Trust."  (See "Total
    Reinvestment Plan" and for residents of Texas, see "Total Reinvestment
    Plan for Texas Residents" in Part B of this Prospectus.)  The Plan is not
    designed to be a complete investment program.

        
    <PAGE>

                            MUNICIPAL SECURITIES TRUST
                               66TH DISCOUNT SERIES
       
               SUMMARY OF ESSENTIAL INFORMATION AS OF JUNE 30, 1994

     Date of Deposit:  July 21, 1988            Minimum Principal Distribution:
     Principal Amount of Bonds ...$6,110,000     $1.00 per Unit.
     Number of Units .............9,990         Weighted Average Life
     Fractional Undivided Inter-                 to Maturity:  12.3 Years.
       est in Trust per Unit .....1/9990        Minimum Value of Trust:
     Principal Amount of                         Trust may be terminated if
       Bonds per Unit ............$611.61        value of Trust is less than
     Secondary Market Public                     $4,000,000 in principal
       Offering Price**                          amount of Bonds.
       Aggregate Bid Price                      Mandatory Termination Date:
         of Bonds in Trust .......$5,127,027+++  The earlier of December 31,
       Divided by 9,990 Units ... $513.22        2037 or the disposition of
       Plus Sales Charge of 5.5%                 the last Bond in the Trust.
         of Public Offering Price $29.86        Trustee***:  United States
       Public Offering Price                      Trust Company of New York.
         per Unit ................$543.09+      Trustee's Annual Fee:  Monthly 
     Redemption and Sponsor's                    plan $.96 per $1,000; semi-
       Repurchase Price                          annual plan $.50 per $1,000;
       per Unit ..................$513.22+       and annual plan is $.32 per
                                         +++     $1,000.
                                         ++++   Evaluator: Kenny S&P Evaluation
     Excess of Secondary Market                  Services. 
       Public Offering Price                    Evaluator's Fee for Each
       over Redemption and                       Evaluation:  Minimum of $15
       Sponsor's Repurchase                      plus $.25 per each issue of
       Price per Unit ............$29.86++++     Bonds in excess of 50 issues
     Difference between Public                   (treating separate maturities
       Offering Price per Unit                   as separate issues).
       and Principal Amount per                 Sponsor:  Bear, Stearns & Co.
       Unit Premium/(Discount) ...$(68.52)       Inc.
     Evaluation Time:  4:00 p.m.                Sponsor's Annual Fee:  Maximum
       New York Time.                            of $.25 per $1,000 principal
                                                 amount of Bonds (see "Trust
                                                 Expenses and Charges" in
                                                 Part B of this Prospectus).

        PER UNIT INFORMATION BASED UPON INTEREST DISTRIBUTION PLAN ELECTED

                                            Monthly   Semi-Annual   Annual
                                            Option      Option      Option


    Gross annual interest income# ......... $45.61      $45.61      $45.61
    Less estimated annual fees and
      expenses ............................   1.42         .99         .86
    Estimated net annual interest           ______      ______      ______
      income (cash)# ...................... $44.19      $44.62      $44.75
    Estimated interest distribution# ......   3.68       22.31       44.75
    Estimated daily interest accrual# .....  .1227       .1239       .1243
    Estimated current return#++ ...........  8.14%       8.22%       8.24%
    Estimated long term return++ ........... 4.45%       4.53%       4.55%
    Record dates .......................... 1st of      Dec. 1 and   Dec. 1
                                            each month  June 1
    Interest distribution dates ........... 15th of     Dec. 15 and  Dec. 15
                                            each month  June 15

        

    <PAGE>
       *  The Date of Deposit is the date on which the Trust Agreement was
          signed and the deposit of the Bonds with the Trustee made. 

      **  For information regarding offering price per unit and applicable
          sales charge under the Total Reinvestment Plan, see "Total
          Reinvestment Plan" in Part B of this Prospectus. 

     ***  The Trustee maintains its corporate trust office at 770 Broadway,
          New York, New York 10003 (tel. no.:  1-800-428-8890).  For
          information regarding redemption by the Trustee, see "Trustee
          Redemption" in Part B of this Prospectus.
       
       +  Plus accrued interest to expected date of settlement (approximately
          five business days after purchase) of $9.14 monthly, $12.60 semi-
          annually and $34.91 annually. 
        
      ++  The estimated current return and estimated long term return are
          increased for transactions entitled to a discount (see "Employee
          Discounts" in Part B of this Prospectus), and are higher under the
          semi-annual and annual options due to lower Trustee's fees and
          expenses. 

     +++  Based solely upon the bid side evaluation of the underlying Bonds
          (including, where applicable, undistributed cash in the principal
          account).  Upon tender for redemption, the price to be paid will be
          calculated as described under "Trustee Redemption" in Part B of this
          Prospectus. 

    ++++  See "Comparison of Public Offering Price, Sponsor's Repurchase Price
          and Redemption Price" in Part B of this Prospectus. 

       #  Does not include income accrual from original issue discount bonds,
          if any.

    <PAGE>
       
                          INFORMATION REGARDING THE TRUST
                                AS OF JUNE 30, 1994


    DESCRIPTION OF PORTFOLIO*

          The portfolio of the Trust consists of 12 issues representing
    obligations of issuers located in 11 states.  The Sponsor has not
    participated as a sole underwriter or manager, co-manager or member of an
    underwriting syndicate from which any of the initial aggregate principal
    amount of the Bonds were acquired.  None of the Bonds are obligations of
    state and local housing authorities; approximately 15.5% are hospital
    revenue bonds; approximately 9.8% are issued in connection with the
    financing of nuclear generating facilities; and none are "mortgage
    subsidy" bonds.  All of the Bonds in the Trust are subject to redemption
    prior to their stated maturity dates pursuant to sinking fund or call
    provisions.  The Bonds may also be subject to other calls, which may be
    permitted or required by events which cannot be predicted (such as
    destruction, condemnation, termination of a contract, or receipt of excess
    or unanticipated revenues).  None of the Bonds are general obligation
    bonds.  Twelve issues representing $6,110,000 of the principal amount of
    the Bonds are payable from the income of a specific project or authority
    and are not supported by the issuer's power to levy taxes.  The portfolio
    is divided for purpose of issue as follows:  Airport Facilities 2, Coal
    Power 1, Electric and Gas 1, Hospital 3, Industrial Development 2, Nuclear
    Power 1, Parking 1 and Toll 1.  For an explanation of the significance of
    these factors see "The Trust--Portfolio" in Part B of this Prospectus. 
    *     Changes in the Trust Portfolio:  From July 1, 1994 to September 23,
          1994 14 Units have been redeemed from the trust.
          As of June 30, 1994, $1,500,000 (approximately 24.5% of the
    aggregate principal amount of the Bonds) were original issue discount
    bonds.  Of these original issue discount bonds, $1,500,000 (approximately
    24.5% of the aggregate principal amount of the Bonds) were Zero Coupon
    Bonds.  Zero Coupon Bonds do not provide for the payment of any current
    interest and provide for payment at maturity at par value unless sooner
    sold or redeemed.  The market value of Zero Coupon Bonds is subject to
    greater fluctuations than coupon bonds in response to changes in interest
    rates.  None of the aggregate principal amount of the Bonds in the Trust
    were purchased at a "market" discount from par value at maturity,
    approximately 75.5% were purchased at a premium and none were purchased at
    par.  For an explanation of the significance of these factors see
    "Discount and Zero Coupon Bonds" in Part B of this Prospectus. 

          None of the Bonds in the Trust are subject to the federal individual
    alternative minimum tax under the Tax Reform Act of 1986.  See "Tax
    Status" in Part B of this Prospectus.
        
    <PAGE>
                       FINANCIAL AND STATISTICAL INFORMATION


    Selected data for each Unit outstanding for the periods listed below:

                                                                    Distribu-
                                                                    tions of
                                          Distributions of Interest Principal
                                         During the Period (per Unit) During
                             Net Asset*            Semi-              the
                  Units Out-   Value     Monthly   Annual   Annual   Period
    Period Ended   standing   Per Unit   Option    Option   Option  (Per Unit)

       
    June 30, 1992        10,000  $613.15  $48.80   $49.41   $49.64    -0-
    June 30, 1993        10,000   559.13   46.72    47.32    49.52 $50.44
    June 30, 1994         9,990   525.81   43.92    44.48    45.07   8.71

        

    *     Net Asset Value per Unit is calculated by dividing net assets as
          disclosed in the "Statement of Net Assets" by the number of Units
          outstanding as of the date of the Statement of Net Assets.  See
          Note 5 of Notes to Financial Statements for a description of the
          components of Net Assets.
<PAGE>


Independent Auditors' Report


The Sponsor, Trustee and Certificateholders
Municipal Securities Trust, 66th Discount Series:


We have audited the accompanying statement of net assets, including the
portfolio, of Municipal Securities Trust, 66th Discount Series as of
June 30, 1994, and the related statements of operations, and changes in
net assets for each of the years in the three year period then ended.
These financial statements are the responsibility of the Trustee
(see note 2).  Our responsibility is to express an opinion on these
financial statements based on our audits.

We conducted our audits in accordance with generally accepted auditing
standards.  Those standards require that we plan and perform the audit to
obtain reasonable assurance about whether the financial statements are
free of material misstatement.  An audit includes examining, on a test
basis, evidence supporting the amounts and disclosures in the financial
statements.  Our procedures included confirmation of securities owned
as of June 30, 1994, by correspondence with the Trustee.  An audit also
includes assessing the accounting principles used and significant
estimates made by management, as well as evaluating the overall
financial statement presentation.  We believe that our audits provide
a reasonable basis for our opinion.

In our opinion, the financial statements referred to above present
fairly, in all material respects, the financial position of Municipal
Securities Trust, 66th Discount Series as of June 30, 1994, and the
results of its operations and the changes in its net assets for each
of the years in the three year period then ended, in conformity with
generally accepted accounting principles.




KPMG Peat Marwick LLP


New York, New York
September 15, 1994
<PAGE>



            MUNICIPAL SECURITIES TRUST, 66TH DISCOUNT SERIES

                        Statement of Net Assets

                           June 30, 1994

Investments in marketable securities,
   at market value (cost   $5,372,705)               $   5,127,004

Excess of other assets over total liabilities              125,843
                                                      ------------

Net assets (9,990 units   of fractional undivided
   interest outstanding,  $525.81 per   unit)         $   5,252,847
                                                       ============

See accompanying notes to financial statements.
<PAGE>

<TABLE> 
                  MUNICIPAL SECURITIES TRUST, 66TH DISCOUNT SERIES

                               Statements of Operations
<CAPTION>
                                                           Years ended June 30,
                                                ----------- --  ----------  --  -------------
                                                   1994            1993             1992
                                                -----------     ----------      -------------
<S>                                          <C>                <C>             <C> 
Investment income - interest                 $     476,932        500,404            523,092
                                                -----------     ----------      -------------

Expenses:
   Trustee's fees                                    8,549          9,044              8,791
   Evaluator's fees                                  3,168          3,270              2,898
   Sponsor's advisory fee                            2,016          2,138              2,139
                                                -----------     ----------      -------------

           Total expenses                           13,733         14,452             13,828
                                                -----------     ----------      -------------

           Investment income, net                  463,199        485,952            509,264
                                                -----------     ----------      -------------

Realized and unrealized gain (loss)
   on investments:
     Net realized loss
       on bonds sold or called                      (3,334)       (39,567)              (884)
     Unrealized appreciation
       (depreciation) for the year                (264,570)       (12,087)            66,807
                                                -----------     ----------      -------------

           Net gain (loss) on investments         (267,904)       (51,654)            65,923
                                                -----------     ----------      -------------

           Net increase in net
             assets resulting
             from operations                 $     195,295        434,298            575,187
                                                ===========     ==========      =============

See accompanying notes to financial statements.
</TABLE> 
<PAGE>
<TABLE> 
                  MUNICIPAL SECURITIES TRUST, 66TH DISCOUNT SERIES

                         Statements of Changes in Net Assets
<CAPTION>
                                                         Years ended June 30,
                                             ------------ -- ------------  -- -------------
                                                 1994            1993             1992
                                             ------------    ------------     -------------
<S>                                        <C>               <C>              <C> 
Operations:
   Investment income, net                  $     463,199         485,952           509,264
   Net realized loss on
     bonds sold or called                         (3,334)        (39,567)             (884)
   Unrealized appreciation
     (depreciation) for the year                (264,570)        (12,087)           66,807
                                             ------------    ------------     -------------

                Net increase in net
                  assets resulting
                  from operations                195,295         434,298           575,187
                                             ------------    ------------     -------------

Distributions to Certificateholders:
     Investment income                           441,358         470,144           490,295
     Principal                                    87,013         504,400            -

Redemptions:
     Interest                                        112          -                 -
     Principal                                     5,244          -                 -
                                             ------------    ------------     -------------

  Total distributions and redemptions            533,727         974,544           490,295
                                             ------------    ------------     -------------

                Total increase (decrease)       (338,432)       (540,246)           84,892

Net assets at beginning of year                5,591,279       6,131,525         6,046,633
                                             ------------    ------------     -------------

Net assets at end of year (including
   undistributed net investment
   income of  $190,194,  $207,598 and
   $191,790 respectively)                  $   5,252,847       5,591,279         6,131,525
                                             ============    ============     =============

See accompanying notes to financial statements.
</TABLE> 
<PAGE>
Notes to Financial Statements

June 30, 1994, 1993 and 1992

(1)  Organization and Financial and Statistical Information

Municipal Securities Trust, 66th Discount Series (Trust) was
organized on July 21, 1988 by Bear Stearns and Co. Inc. (Sponsor)
under the laws of the State of New York by a Trust Indenture and
Agreement, and is registered under the Investment Company Act
of 1940.

(2) Summary of Significant Accounting Policies

United States Trust Company of New York (Trustee) has custody of and
responsibility for the accounting records and financial statements of
the Trust and is responsible for establishing and maintaining a
system of internal control related thereto.

The Trustee is also responsible for all estimates of expenses and
accruals reflected in the Trust's financial statements.  The
accompanying financial statements have been adjusted to record the
unrealized appreciation (depreciation) of investments and to record
interest income and expenses on the accrual basis.

The discount on the zero-coupon bonds is accreted by the interest
method over the respective lives of the bonds.  The accretion of such
discount is included in interest income; however, it is not
distributed until realized in cash upon maturity or sale of the
respective bonds.

Investments are carried at market value which is determined by either
Standard and Poor's Corporation, or Moody's Investors Service, Inc.
(Evaluator), as discussed in the footnotes to the portfolio. The
market value of the portfolio is based upon the bid prices for the
bonds at the end of the period, except that the market value on the
date of deposit represents the cost to the Trust based on the
offering prices for investments at that date.  The difference between
cost (including accumulated accretion of original issue discount on
zero-coupon bonds) and market value is reflected as unrealized
appreciation (depreciation) of investments.  Securities transactions
are recorded on the trade date.  Realized gains (losses) from
securities transactions are determined on the basis of average cost
of the securities sold or redeemed.

(3) Income Taxes

The Trust is not subject to Federal income taxes as provided for by
the Internal Revenue Code.

(4)  Trust Administration

The fees and expenses of the Trust are incurred and paid on the basis
set forth under "Trust Expenses and Charges" in Part B of this
Prospectus.

The Trust Indenture and Agreement provides for interest distributions
as often as monthly (depending upon the distribution plan elected by
the Certificateholders).

The Trust Indenture and Agreement further requires that principal
received from the disposition of bonds, other than those bonds sold
in connection with the redemption of units, be distributed to
Certificateholders.

See "Financial and Statistical Information" in Part A of this
Prospectus for the amounts of per unit distributions during the years
ended June 30, 1994, 1993 and 1992.

The Trust Indenture and Agreement also requires the Trust to redeem
units tendered.  10 units were redeemed during the year ended June
30, 1994.  No units were redeemed during the years ended June 30,
1993 and 1992.

(5)  Net Assets

At June 30, 1994, the net assets of the Trust represented the
interests of Certificateholders as follows:

Original cost to Certificateholders             $   6,300,435
Less initial gross underwriting commission           (346,600)

                                                     5,953,835

Cost of securities sold or called                     (645,504)
Net unrealized depreciation                           (245,701)
Undistributed net investment income                    190,194
Undistributed proceeds from bonds sold or called            23

                     Total                       $   5,252,847


The original cost to Certificateholders, less the initial gross
underwriting commission, represents the aggregate initial public
offering price net of the applicable sales charge on 10,000 units
of fractional undivided interest of the Trust as of the date of
deposit.

Undistributed net investment income includes accumulated accretion
of original issue discount of $64,374.
<PAGE>
<TABLE> 



MUNICIPAL SECURITIES TRUST, 66TH DISCOUNT SERIES

MUNICIPAL SECURITIES TRUST, 66TH DISCOUNT SERIES
Portfolio
June 30, 1994
<CAPTION>
Port-  Aggregate                                      Coupon Rate/   Redemption Feature
folio  Principal       Name of Issuer       Ratings   Date(s) of     S.F.--Sinking Fund        Market
No.      Amount      and Title of Bonds       (1)     Maturity(2)    Ref.--Refunding(2)(7)     Value(3)
- --     ----------   ---------------------   -------   -----------    ----------------------    -----------
<S>    <C>          <C>                     <C>       <C>            <C>                    <C> 
1      $  540,000   Reg. Arpts. Imprvmt.     BA1*     11.250%        11/01/06 @ 100 S.F.    $      592,445
                    Corp. Facs. Sublease              11/01/2025     11/01/95 @ 103 Ref.
                    Rev. Bonds 1985 Issue
                    Western Air Lines
                    Inc. (L.A. Intrntl.
                    Arpt.)

2         300,000   Douglas Cnty. Colo.       AA*     11.000         10/01/97 @ 100 S.F.           314,646
                    Inc. Dev. Rev. Rfndg.             10/01/2002     10/01/94 @ 103 Ref.
                    Bonds (Mercy
                    Highlands Ranch Med.
                    Bldg. Prjt.) Series
                    1985 (5)

3         350,000   Leesburg Fla. Rfndg.     AAA*     8.600          7/01/09 @ 100 S.F.            382,813
                    & Cap. Imprvmt. Hosp.             7/01/2018      7/01/96 @ 102 Ref.
                    Rev. Bonds (Leesburg
                    Reg. Med. Cntr.
                    Prjt.) Series 1988B
                    (5)

4         600,000   Burke Cnty. Ga. Dev.      AA-     9.250          1/01/11 @ 100 S.F.            627,342
                    Auth. Poll. Cntrl.                1/01/2016      1/01/95 @ 102 Ref.
                    Rev. Bonds
                    (Ogelthorpe Pwr.
                    Corp. Vogtle Prjt.)
                    Series 1985

5         445,000   Michigan State Hosp.      AAA     10.000         10/01/01 @ 100 S.F.           482,499
                    Finc. Auth. Hosp.                 10/01/2016     10/01/95 @ 102 Ref.
                    Rev. Rfnd. Bonds
                    (Harper-Grace & Huron
                    Valley Hospt.) Series
                    1985A (5)

5A         55,000   Michigan State Hosp.      A*      10.000         10/01/01 @ 100 S.F.            59,571
                    Finc. Auth. Hosp.                 10/01/2016     10/01/95 @ 102 Ref.
                    Rev. Rfnd Bonds
                    (Harper-Grace & Huron
                    Valley Hospt) Series
                    1985A

6         470,000   St. Ann Mo. Inc. Dev.    BA2*     10.625         1/15/89 @ 100 S.F.            499,742
                    Auth. Rev. Bonds (K&M             1/15/2015      1/15/95 @ 103 Ref.
                    Dev. Co. Prjt.)
                    Series 1984A

7         250,000   Salem Cnty. N.J.          A2*     10.500         No Sinking Fund               260,890
                    Indus Poll. Cntrl.                11/01/2014     11/01/94 @ 102 Ref.
                    Fncg. Auth. Rev.
                    Bonds Pub. Serv. Elec
                    & Gas  Co. Prjt.
                    Series C.

8         500,000   Tulsa Ok. Muni. Arpt.    BAA2*    9.375          6/01/03 @ 100 S.F.            534,185
                    Trust Rev. Indus.                 6/01/2004      12/01/95 @ 102  Ref.
                    Dev. Rev.
                    Bonds-American
                    Airlines
9         500,000   Lancaster Penn Prkg.       A      9.500          1/01/06 @ 100 S.F.            536,535
                    Auth Prkg. Rev.                   1/01/2012      1/01/96 @ 100 Ref.
                    Rfngd. Bonds Series
                    1985

10        100,000   Bexar Cntr. Tx. Hlth.      A      9.500          11/01/00 @ 100 S.F.           107,606
                    Facs Dev. Corp.                   11/01/2015     11/01/95 @ 102 Ref.
                    Incarnate Word Hlth.
                    Serv. Rfndg. Rev.
                    Bonds

11        500,000   Harris Cnty. Tx. Toll     AAA     9.250          8/01/08 @ 100 S.F.            528,465
                    Rd. Unlmtd. Tax and               8/01/2014      2/01/95 @ 103 Ref.
                    Subordinate Lien Rev.
                    Rfndg. Bonds Series
                    1985F (5)


12  $   1,500,000   Intermountain Utah        AAA     0.000%         1.01/13 @ 50.753 S.F.  $      200,265
                    Pwr. Agncy Pwr. Sply.             7/01/2020      7/01/02 @ 20.620 Ref.
                    Rev. Rfndg. Bonds
                    1987C (5)

       ----------                                                                              -----------
    $   6,110,000                                                                           $    5,127,004
       ==========                                                                              ===========

See accompanying footnotes to portfolio and notes to financial statements.
</TABLE> 
<PAGE>

Footnotes to Portfolio

June 30, 1994


(1)  All ratings are by
Standard & Poor's Corporation, except for those identified by an
asterisk (*) which are by Moody's Investors Service, Inc.  A brief
description of the ratings symbols and their meanings is set forth
under "Description of Bond Ratings" in Part B of this Prospectus.

(2)  See "The Trust -
Portfolio" in Part B of this Prospectus for an explanation of
redemption features.  See "Tax Status" in Part B of this Prospectus
for a statement of the Federal tax consequences to a
Certificateholder upon the sale, redemption or maturity of a bond.

(3)  At June 30, 1994, the
net unrealized depreciation of all the bonds was comprised of the
following:

Gross unrealized appreciation                   $   64,121
Gross unrealized depreciation                     (309,822)

Net unrealized depreciation                       (245,701)

(4) The annual interest
income, based upon bonds held at June 30, 1994 (excluding accretion
of original issue discount on zero-coupon bonds), to the Trust is
$455,663.

(5) The bonds have been
prerefunded and will be redeemed at the next refunding call date.

(6)  Bonds sold or called
after June 30, 1994 are noted in a footnote "Changes in Trust
Portfolio" under "Description of Portfolio" in Part A of this
Prospectus.

(7)  The Bonds may also be
subject to other calls, which may be permitted or required by events
which cannot be predicted (such as destruction, condemnation,
termination of a contract, or receipt of excess or unanticipated
revenues).
<PAGE>




                 Note:  Part A of This Prospectus May Not Be     
                        Distributed Unless Accompanied by Part B.


                            MUNICIPAL SECURITIES TRUST

                                     SERIES 39

    __________________________________________________________________

       
          The Trust is a unit investment trust designated Series 39
    ("Municipal Trust") with an underlying portfolio of long-term tax-exempt
    bonds issued by or on behalf of states, municipalities and public
    authorities, and was formed to preserve capital and to provide interest
    income (including, where applicable, earned original issue discount)
    which, in the opinions of bond counsel to the respective issuers, is, with
    certain exceptions, currently exempt from regular Federal income tax
    (including where applicable earned original discount) under existing law
    but may be subject to state and local taxes.  Such interest income may,
    however, be a specific preference item for purposes of Federal individual
    and/or corporate alternative minimum tax.  Investors may recognize taxable
    capital gain upon maturity or earlier redemption of the underlying bonds. 
    (See "Tax Status" and "The Trust--Portfolio" in Part B of this
    Prospectus.)  The Sponsor is Bear, Stearns & Co. Inc.  The value of the
    Units of the Trust will fluctuate with the value of the underlying bonds. 
    Minimum purchase:  1 Unit. 

    __________________________________________________________________


          This Prospectus consists of two parts.  Part A contains the Summary
    of Essential Information as of June 30, 1994 (the "Evaluation Date"), a
    summary of certain specific information regarding the Trust and audited
    financial statements of the Trust, including the related portfolio, as of
    the Evaluation Date.  Part B of this Prospectus contains a general summary
    of the Trust. 

                    Investors should retain both parts of this
                         Prospectus for future reference.

    __________________________________________________________________

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


                     Prospectus Part A Dated October 28, 1994
        
    <PAGE>

       
          THE TRUST.  The Trust is a unit investment trust formed to preserve
    capital and to provide interest income (including, where applicable,
    earned original issue discount) which, in the opinions of bond counsel to
    the respective issuers, is, with certain exceptions, currently exempt from
    regular federal income tax under existing law through investment in a
    fixed, diversified portfolio of long-term bonds (the "Bonds") issued by or
    on behalf of states, municipalities and public authorities.  A Trust
    designated as a short/intermediate-term trust must have a dollar-weighted
    average portfolio maturity of more than two years but less than five
    years; a Trust designated as an intermediate-term trust must have a
    dollar-weighted average portfolio maturity of more than three years but
    not more than ten years; a Trust designated as an intermediate/long-term
    trust must have a dollar-weighted average portfolio maturity of more than
    ten years but less than fifteen years; and a Trust designated as a long-
    term trust must have a dollar-weighted average portfolio maturity of more
    than ten years.  Although the Supreme Court has determined that Congress
    has the authority to subject interest on bonds such as the Bonds in the
    Trust to regular federal income taxation, existing law excludes such
    interest from regular federal income tax.  Such interest income may,
    however, be subject to the federal corporate alternative minimum tax and
    to state and local taxes.  (See "Description of Portfolio" in this Part A
    for a description of those Bonds which pay interest income subject to the
    federal individual alternative minimum tax.  See also "Tax Status" in
    Part B of this Prospectus.)  Some of the Bonds in the portfolio may be
    "Zero Coupon Bonds", which are original issue discount bonds that provide
    for payment at maturity at par value, but do not provide for the payment
    of any current interest.  Some of the Bonds in the portfolio may have been
    purchased at an aggregate premium over par.  Some of the Bonds in the
    Trust have been issued with optional refunding or refinancing provisions
    ("Refunded Bonds") whereby the issuer of the Bond has the right to call
    such Bond prior to its stated maturity date (and other than pursuant to
    sinking fund provisions) and to issue new bonds ("Refunding Bonds") in
    order to finance the redemption.  Issuers typically utilize refunding
    calls in order to take advantage of lower interest rates in the
    marketplace.  Some of these Refunded Bonds may be called for redemption
    pursuant to pre-refunding provisions ("Pre-Refunded Bonds") whereby the
    proceeds from the issue of the Refunding Bonds are typically invested in
    government securities in escrow for the benefit of the holders of the Pre-
    Refunded Bonds until the refunding call date.  Usually, Pre-Refunded Bonds
    will bear a triple-A rating because of this escrow.  The issuers of Pre-
    Refunded Bonds must call such Bonds on their refunding call date. 
    Therefore, as of such date, the Trust will receive the call price for such
    bonds but will cease receiving interest income with respect to them.  For
    a list of those Bonds which are Pre-Refunded Bonds, if any, as of the
    Evaluation Date, see "Notes to Financial Statements" in this Part A.  All
    of the Bonds in the Trust were rated "A" or better by Standard & Poor's
    Corporation or Moody's Investors Service, Inc. at the time originally
    deposited in the Trust.  For a discussion of the significance of such
    ratings see "Description of Bond Ratings" in Part B of this Prospectus and
    for a list of ratings on the Evaluation Date see the "Portfolio".  The
    payment of interest and preservation of capital are, of course, dependent
    upon the continuing ability of the issuers of the Bonds to meet their
    obligations.  There can be no assurance that the Trust's objectives will
    be achieved.  Investment in the Trust should be made with an understanding
    of the risks which an investment in long-term fixed rate obligations may
    entail, including the risk that the value of the underlying portfolio will
    decline with increases in interest rates, and that the value of Zero
    Coupon Bonds is subject to greater fluctuations than coupon bonds in
    response to changes in interest rates.  Each Unit in the Trust represents
    a 1/2495th undivided interest in the principal and net income of the
    Trust.  The principal amount of Bonds deposited in the Trust per Unit is
    reflected in the Summary of Essential Information.  (See "The Trust--
    Organization" in Part B of this Prospectus.)  The Units being offered
    hereby are issued and outstanding Units which have been purchased by the
    Sponsor in the secondary market. 

          PUBLIC OFFERING PRICE.  The secondary market Public Offering Price
    of each Unit is equal to the aggregate bid price of the Bonds in the Trust
    divided by the number of Units outstanding, plus a sales charge of 4.9% of
    the Public Offering Price, which is the same as 5.152% of the net amount
    invested in Bonds per Unit.  In addition, accrued interest to expected
    date of settlement is added to the Public Offering Price.  If Units had
    been purchased for sale on the Evaluation Date, the Public Offering Price
    per Unit would have been $967.96 plus accrued interest of $14.27 under the
    monthly distribution plan, $20.46 under the semi-annual distribution plan
    and $58.95 under the annual distribution plan, for a total of $982.23,
    $988.42 and $1,026.91, respectively.  The Public Offering Price per Unit
    can vary on a daily basis in accordance with fluctuations in the aggregate
    bid price of the Bonds.  (See the "Summary of Essential Information" and
    "Public Offering--Offering Price" in Part B of this Prospectus.)

          ESTIMATED LONG TERM RETURN AND ESTIMATED CURRENT RETURN.  Units of
    each Trust are offered to investors on a "dollar price" basis (using the
    computation method previously described under "Public Offering Price") as
    distinguished from a "yield price" basis often used in offerings of tax
    exempt bonds (involving the lesser of the yield as computed to maturity of
    bonds or to an earlier redemption date).  Since they are offered on a
    dollar price basis, the rate of return on an investment in Units of each
    Trust is measured in terms of "Estimated Current Return" and "Estimated
    Long Term Return".

          Estimated Long Term Return is calculated by:  (1) computing the
    yield to maturity or to an earlier call date (whichever results in a lower
    yield) for each Bond in the Trust's portfolio in accordance with accepted
    bond practices, which practices take into account not only the interest
    payable on the Bond but also the amortization of premiums or accretion of
    discounts, if any; (2) calculating the average of the yields for the Bonds
    in the Trust's portfolio by weighing each Bond's yield by the market value
    of the Bond and by the amount of time remaining to the date to which the
    Bond is priced (thus creating an average yield for the portfolio of the
    Trust); and (3) reducing the average yield for the portfolio of the Trust
    in order to reflect estimated fees and expenses of the Trust and the
    maximum sales charge paid by investors.  The resulting Estimated Long Term
    Return represents a measure of the return to investors earned over the
    estimated life of the Trust.  (For the Estimated Long Term Return to
    Certificateholders under the monthly, semi-annual and annual distribution
    plans, see "Summary of Essential Information".)

          Estimated Current Return is a measure of the Trust's cash flow. 
    Estimated Current Return is computed by dividing the Estimated Net Annual
    Interest Income per Unit by the Public Offering Price per Unit.  In
    contrast to the Estimated Long Term Return, the Estimated Current Return
    does not take into account the amortization of premium or accretion of
    discount, if any, on the Bonds in the portfolio of the Trust.  Moreover,
    because interest rates on Bonds purchased at a premium are generally
    higher than current interest rates on newly issued bonds of a similar type
    with comparable rating, the Estimated Current Return per Unit may be
    affected adversely if such Bonds are redeemed prior to their maturity.  

          The Estimated Net Annual Interest Income per Unit of the Trust will
    vary with changes in the fees and expenses of the Trustee and the
    Evaluator applicable to the Trust and with the redemption, maturity, sale
    or other disposition of the Bonds in the Trust.  The Public Offering Price
    will vary with changes in the bid prices of the Bonds.  Therefore, there
    is no assurance that the present Estimated Current Return or Estimated
    Long Term Return will be realized in the future.  (For the Estimated
    Current Return to Certificateholders under the monthly, semi-annual and
    annual distribution plans, see "Summary of Essential Information".  See
    "Estimated Long Term Return and Estimated Current Return" in Part B of
    this Prospectus.)

          A schedule of cash flow projections is available from the Sponsor
    upon request.

          DISTRIBUTIONS.  Distributions of interest income, less expenses,
    will be made by the Trust either monthly, semi-annually or annually
    depending upon the plan of distribution applicable to the Unit purchased. 
    A purchaser of a Unit in the secondary market will initially receive
    distributions in accordance with the plan selected by the prior owner of
    such Unit and may thereafter change the plan as provided in "Interest and
    Principal Distributions" in Part B of this Prospectus.  Distributions of
    principal, if any, will be made semi-annually on June 15 and December 15
    of each year.  (See "Rights of Certificateholders--Interest and Principal
    Distributions" in Part B of this Prospectus.  For estimated monthly, semi-
    annual and annual interest distributions, see "Summary of Essential
    Information".)

          MARKET FOR UNITS.  The Sponsor, although not obligated to do so,
    intends to maintain a market for the Units at prices based upon the
    aggregate bid price of the Bonds in the portfolio of the Trust.  The
    Secondary Market repurchase price is based on the aggregate bid price of
    the Bonds in the Trust portfolio, and the reoffer price is based on the
    aggregate bid price of the Bonds plus a sales charge of 4.9% of the Public
    Offering Price (5.152% of the net amount invested) plus net accrued
    interest.  If such a market is not maintained, a Certificateholder will be
    able to redeem his Units with the Trustee at a price also based upon the
    aggregate bid price of the Bonds.  (See "Sponsor Repurchase" and "Public
    Offering--Offering Price" in Part B of this Prospectus.)

          TOTAL REINVESTMENT PLAN.  Certificateholders under the semi-annual
    and annual plans of distribution have the opportunity to have their
    interest distributions and principal distributions, if any, reinvested in
    available series of "Insured Municipal Securities Trust" or "Municipal
    Securities Trust."  (See "Total Reinvestment Plan" and for residents of
    Texas, see "Total Reinvestment Plan for Texas Residents" in Part B of this
    Prospectus.)  The Plan is not designed to be a complete investment
    program. 

        

    <PAGE>
                            MUNICIPAL SECURITIES TRUST
                                     SERIES 39
       
               SUMMARY OF ESSENTIAL INFORMATION AS OF JUNE 30, 1994

     Date of Deposit:  October 13, 1988         Minimum Principal Distribution:
     Principal Amount of Bonds ...$2,275,000     $1.00 per Unit.
     Number of Units .............2,495         Weighted Average Life to
     Fractional Undivided Inter-                Maturity:
       est in Trust per Unit .....1/2495         21.9 Years.
     Principal Amount of                        Minimum Value of Trust:
       Bonds per Unit ............$911.82        Trust may be terminated if
     Secondary Market Public                     value of Trust is less than
       Offering Price**                          $1,000,000 in principal
       Aggregate Bid Price                       amount of Bonds.
         of Bonds in Trust .......$2,296,717+++ Mandatory Termination Date:
       Divided by 2,495 Units ....$920.53        The earlier of December 31,
       Plus Sales Charge of 4.9%                 2037 or the disposition of
         of Public Offering Price $47.43         the last Bond in the Trust.
       Public Offering Price                    Trustee***:  United States
         per Unit ................$967.96+       Trust Company of New York.
     Redemption and Sponsor's                   Trustee's Annual Fee:  Monthly 
       Repurchase Price                          plan $1.05 per $1,000; semi-
       per Unit ..................$920.53+       annual plan $.60 per $1,000;
                                         +++     and annual plan is $.35 per
                                         ++++    $1,000.
     Excess of Secondary Market                 Evaluator: Kenny S&P Evaluation
       Public Offering Price                     Services. 
       over Redemption and                      Evaluator's Fee for Each
       Sponsor's Repurchase                      Evaluation:  Minimum of $15
       Price per Unit ............$47.43++++     plus $.25 per each issue of
     Difference between Public                   Bonds in excess of 50 issues
       Offering Price per Unit                   (treating separate maturities
       and Principal Amount per                  as separate issues).
       Unit Premium/(Discount) ...$56.14        Sponsor:  Bear, Stearns & Co.
     Evaluation Time:  4:00 p.m.                 Inc.
       New York Time.                           Sponsor's Annual Fee:  Maximum
                                                 of $.25 per $1,000 principal
                                                 amount of Bonds (see "Trust
                                                 Expenses and Charges" in
                                                 Part B of this Prospectus).

        PER UNIT INFORMATION BASED UPON INTEREST DISTRIBUTION PLAN ELECTED

                                            Monthly   Semi-Annual   Annual
                                            Option      Option      Option


    Gross annual interest income# ......... $78.25      $78.25      $78.25
    Less estimated annual fees and
      expenses ............................   2.17        1.59        1.34
    Estimated net annual interest           ______      ______      ______
      income (cash)# ...................... $76.08      $76.66      $76.91
    Estimated interest distribution# ......   6.34       38.33       76.91
    Estimated daily interest accrual# .....  .2113       .2129       .2136
    Estimated current return#++ ...........  7.86%       7.92%       7.95%
    Estimated long term return++ ..........  5.95%       6.01%       6.03%
    Record dates .......................... 1st of      Dec. 1 and   Dec. 1
                                            each month  June 1
    Interest distribution dates ........... 15th of     Dec. 15 and  Dec. 15
                                            each month  June 15
        
    <PAGE>
       *  The Date of Deposit is the date on which the Trust Agreement was
          signed and the deposit of the Bonds with the Trustee made. 

      **  For information regarding offering price per unit and applicable
          sales charge under the Total Reinvestment Plan, see "Total
          Reinvestment Plan" in Part B of this Prospectus. 

     ***  The Trustee maintains its corporate trust office at 770 Broadway,
          New York, New York 10003 (tel. no.:  1-800-428-8890).  For
          information regarding redemption by the Trustee, see "Trustee
          Redemption" in Part B of this Prospectus.
       
       +  Plus accrued interest to expected date of settlement (approximately
          five business days after purchase) of $14.27 monthly, $20.46 semi-
          annually and $58.35 annually. 
        
      ++  The estimated current return and estimated long term return are
          increased for transactions entitled to a discount (see "Employee
          Discounts" in Part B of this Prospectus), and are higher under the
          semi-annual and annual options due to lower Trustee's fees and
          expenses.

     +++  Based solely upon the bid side evaluation of the underlying Bonds
          (including, where applicable, undistributed cash in the principal
          account).  Upon tender for redemption, the price to be paid will be
          calculated as described under "Trustee Redemption" in Part B of this
          Prospectus. 

    ++++  See "Comparison of Public Offering Price, Sponsor's Repurchase Price
          and Redemption Price" in Part B of this Prospectus. 

       #  Does not include income accrual from original issue discount bonds,
          if any.

    <PAGE>
       
                          INFORMATION REGARDING THE TRUST
                                AS OF JUNE 30, 1994


    DESCRIPTION OF PORTFOLIO

          The portfolio of the Trust consists of 10 issues not representing
    obligations of issuers located in 9 states.  The Sponsor has not
    participated as a sole underwriter or manager, co-manager or member of an
    underwriting syndicate from which any of the initial aggregate principal
    amount of the Bonds were acquired.  None of the Bonds are obligations of
    state and local housing authorities; approximately 29.7% are hospital
    revenue bonds; approximately 22% are issued in connection with the
    financing of nuclear generating facilities; and none are "mortgage
    subsidy" bonds.  All of the Bonds in the Trust are subject to redemption
    prior to their stated maturity dates pursuant to sinking fund or call
    provisions.  The Bonds may also be subject to other calls, which may be
    permitted or required by events which cannot be predicted (such as
    destruction, condemnation, termination of a contract, or receipt of excess
    or unanticipated revenues).  None of the Bonds are general obligation
    bonds.  Ten issues representing $2,275,000 of the principal amount of the
    Bonds are payable from the income of a specific project or authority and
    are not supported by the issuer's power to levy taxes.  The portfolio is
    divided for purpose of issue as follows:  Airport Facilities 3, Bond
    Bank 1, Electric and Gas 1, Hospital 3 and Nuclear Power 2.  For an
    explanation of the significance of these factors see "The Trust--
    Portfolio" in Part B of this Prospectus. 

          As of June 30, 1994, $675,000 (approximately 29.7% of the aggregate
    principal amount of the Bonds) were original issue discount bonds.  None
    of the aggregate principal amount of the Bonds in the Trust were purchased
    at a "market" discount from par value at maturity, approximately 70.3%
    were purchased at a premium and none were purchased at par.  For an
    explanation of the significance of these factors see "Discount and Zero
    Coupon Bonds" in Part B of this Prospectus.

          None of the Bonds in the Trust are subject to the federal individual
    alternative minimum tax under the Tax Reform Act of 1986.  See "Tax
    Status" in Part B of this Prospectus.
        
    <PAGE>
                       FINANCIAL AND STATISTICAL INFORMATION


    Selected data for each Unit outstanding for the periods listed below:

       
    June 30, 1992         2,500$1,009.68  $78.90   $79.54    -0-    -0-  
    June 30, 1993         2,500   992.04   77.84    78.48    -0-   $35.84
    June 30, 1994         2,495   940.59   75.97    76.59    -0-    -0-  

        
<PAGE>


Independent Auditors' Report


The Sponsor, Trustee and Certificateholders
Municipal Securities Trust, Series 39:


We have audited the accompanying statement of net assets, including the
portfolio, of Municipal Securities Trust, Series 39 as of June 30, 1994,
and the related statements of operations, and changes in net assets for
each of the years in the three year period then ended.  These financial
statements are the responsibility of the Trustee (see note 2).  Our
responsibility is to express an opinion on these financial statements
based on our audits.

We conducted our audits in accordance with generally accepted auditing
standards.  Those standards require that we plan and perform the audit
to obtain reasonable assurance about whether the financial statements
are free of material misstatement.  An audit includes examining, on a
test basis, evidence supporting the amounts and disclosures in the
financial statements.  Our procedures included confirmation of
securities owned as of June 30, 1994, by correspondence with the
Trustee.  An audit also includes assessing the accounting principles
used and significant estimates made by management, as well as evaluating
the overall financial statement presentation.  We believe that our
audits provide a reasonable basis for our opinion.

In our opinion, the financial statements referred to above present
fairly, in all material respects, the financial position of Municipal
Securities Trust, Series 39 as of June 30, 1994, and the results of
its operations and the changes in its net assets for each of the years
in the three year period then ended, in conformity with generally
accepted accounting principles.




                                       KPMG Peat Marwick LLP


New York, New York
September 15, 1994
<PAGE>


                  MUNICIPAL SECURITIES TRUST, SERIES 39

                         Statement of Net Assets

                            June 30, 1994

Investments in marketable securities,
   at market value (cost    $2,332,128)                  $   2,299,400

Excess of other assets over total liabilities                   47,377
                                                          ------------

Net assets ( 2,495 units   of fractional undivided
   interest outstanding,   $940.59 per   unit)           $   2,346,777
                                                          ============

See accompanying notes to financial statements.
<PAGE>
<TABLE> 

                       MUNICIPAL SECURITIES TRUST, SERIES 39

                               Statements of Operations
<CAPTION>
                                                         Years ended June 30,
                                             ----------- --  ------------ -- -----------
                                                1994             1993           1992
                                             -----------     ------------    -----------
<S>                                       <C>                <C>             <C> 
Investment income - interest              $     195,250          200,021        203,179
                                             -----------     ------------    -----------

Expenses:
   Trustee's fees                                 3,557            3,699          3,645
   Evaluator's fees                                 899              924            819
   Sponsor's advisory fee                           616              621            621
                                             -----------     ------------    -----------

           Total expenses                         5,072            5,244          5,085
                                             -----------     ------------    -----------

           Investment income, net               190,178          194,777        198,094
                                             -----------     ------------    -----------

Realized and unrealized gain (loss)
   on investments:
     Net realized loss
       on bonds sold or called                         -          (4,097)          (171)
     Unrealized appreciation
       (depreciation) for the year             (128,430)          49,852         61,393
                                             -----------     ------------    -----------

           Net gain (loss) on investments      (128,430)          45,755         61,222
                                             -----------     ------------    -----------

           Net increase in net
             assets resulting
             from operations              $      61,748          240,532        259,316
                                             ===========     ============    ===========

See accompanying notes to financial statements.
</TABLE> 

<PAGE>
<TABLE> 
                        MUNICIPAL SECURITIES TRUST, SERIES 39

                         Statements of Changes in Net Assets
<CAPTION>
                                                          Years ended June 30,
                                            ------------- -- --------------  -- ------------
                                                1994              1993              1992
                                            -------------    --------------     ------------
<S>                                       <C>                <C>                <C> 
Operations:
   Investment income, net                 $      190,178           194,777          198,094
   Net realized loss on
     bonds sold or called                         -                 (4,097)            (171)
   Unrealized appreciation
     (depreciation) for the year                (128,430)           49,852           61,393
                                            -------------    --------------     ------------

                Net increase in net
                  assets resulting
                  from operations                 61,748           240,532          259,316
                                            -------------    --------------     ------------

Distributions to Certificateholders:
     Investment income                           190,061           195,036          197,686
     Principal                                    -                 89,600           -

Redemptions:
     Interest                                         91           -                 -
     Principal                                     4,912           -                 -
                                            -------------    --------------     ------------

  Total distributions and redemptions            195,064           284,636          197,686
                                            -------------    --------------     ------------

                Total increase (decrease)       (133,316)          (44,104)          61,630

Net assets at beginning of year                2,480,093         2,524,197        2,462,567
                                            -------------    --------------     ------------

Net assets at end of year (including
   undistributed net investment
   income of  $50,061,   $50,035 and
   $51,499, respectively)                 $    2,346,777         2,480,093        2,524,197
                                            =============    ==============     ============

See accompanying notes to financial statements.
</TABLE> 

<PAGE>
Notes to Financial Statements

June 30, 1994, 1993 and 1992





(1)  Organization and Financial and Statistical Information

Municipal Securities Trust, Series 39 (Trust) was organized on
October 13, 1988 by Bear, Stearns & Co. Inc. (Sponsor) under the laws
of the State of New York by a Trust Indenture and Agreement, and is
registered under the Investment Company Act of 1940.

(2)  Summary of Significant Accounting Policies

United States Trust Company of New York (Trustee) has custody of and
responsibility for the accounting records and financial statements of
the Trust and is responsible for establishing and maintaining a
system of internal control related thereto.

The Trustee is also responsible for all estimates of expenses and
accruals reflected in the Trust's financial statements.  The
accompanying financial statements have been adjusted to record the
unrealized appreciation (depreciation) of investments and to record
interest income and expenses on the accrual basis.

Investments are carried at market value which is determined by either
Standard & Poor's Corporation or Moody's Investors Service, Inc.
(Evaluator) as discussed in Footnotes to Portfolio. The market value
of the investments is based upon the bid prices for the bonds at the
end of the period, except that the market value on the date of
deposit represents the cost to the Trust based on the offering prices
for investments at that date.  The difference between cost and market
value is reflected as unrealized appreciation (depreciation) of
investments.  Securities transactions are recorded on the trade date.
Realized gains (losses) from securities transactions are determined
on the basis of average cost of the securities sold or redeemed.

(3) Income Taxes

The Trust is not subject to Federal income taxes as provided for by
the Internal Revenue Code.

(4)  Trust Administration

The fees and expenses of the Trust are incurred and paid on the basis
set forth under "Trust Expenses and Charges" in Part B of this
Prospectus.

The Trust Indenture and Agreement provides for interest distributions
as often as monthly (depending upon the distribution plan elected by
the Certificateholders).

The Trust Indenture and Agreement further requires that principal
received from the disposition of bonds, other than those bonds sold
in connection with the redemption of units, be distributed to
Certificateholders.

See "Financial and Statistical Information" in Part A of this
Prospectus for the amounts of per unit distributions during the years
ended June 30, 1994, 1993 and 1992.

The Trust Indenture and Agreement also requires the Trust to redeem
units tendered.  5 units were redeemed during the year ended June 30,
1994.  No units were redeemed during the years ended June 30, 1993
and 1992.

(5)  Net Assets

At June 30, 1994, the net assets of the Trust represented the
interests of Certificateholders as follows:

Original cost to Certificateholders            $  2,569,042
Less initial gross underwriting commission         (125,875)
                                                   2,443,167

Cost of securities sold or called                  (111,039)
Net unrealized depreciation                         (32,728)
Undistributed net investment income                  50,061
Distribution in excess
of proceeds from bonds sold or called                (2,684)

                     Total                      $  2,346,777


The original cost to Certificateholders, less the initial gross
underwriting commission, represents the aggregate initial public
offering price net of the applicable sales charge on 2,500 units of
fractional undivided interest of the Trust as of the date of
deposit.
<PAGE>
<TABLE> 

MUNICIPAL SECURITIES TRUST, SERIES 39

MUNICIPAL SECURITIES TRUST,  SERIES 39
Portfolio
June 30, 1994

<CAPTION>

Port-  Aggregate                                      Coupon Rate/   Redemption Feature
folio  Principal       Name of Issuer       Ratings   Date(s) of     S.F.--Sinking Fund       Market
No.      Amount      and Title of Bonds       (1)     Maturity(2)    Ref.--Refunding(2)(7)    Value(3)
- --     ----------   ---------------------   -------   ------------   ---------------------    -----------
<S> <C>             <C>                    <C>        <C>            <C>                  <C>  
1   $     250,000   Reg. Arpts. Imprvmt.     BA1*     11.250%        11/01/06 @ 100 S.F.   $      274,279
                    Corp. Faces Sublease              11/01/2025     11/01/95 @ 103 Ref.
                    Rev. Bonds, 1985
                    Issue Western Air
                    Lines, Inc. (L.A.
                    Intrnt. Arpt.)

2         250,000   Burke Cnty. Ga. Dev.      AA-     9.875          1/01/06 @ 100 S.F.           262,178
                    Auth. Poll Cntrl.                 1/01/2010      1/01/95 @ 102 Ref.
                    Rev. Bonds
                    (Oglethorpe Pwr.
                    Corp. Vogtle
                    Prjt.)Series 1985

3         250,000   Indiana Bond Bank          A      9.250          2/01/06 @ 100 S.F.           268,739
                    1985B Series                      2/01/2016      8/01/95 @ 103 Ref.

4         250,000   Salem Cnty. N.J.          A2*     10.500         No Sinking Fund              260,890
                    Indus Poll. Cntrl.                11/01/2014     11/01/94 @ 102 Ref.
                    Fncg. Auth. Rev.
                    Bonds (Publ Serv.
                    Elec. & Gas Co. Prjt
                    1984 Series C

5         250,000   N.C. Eastern Muni.        AAA     4.500          7/01/20 @ 100 S.F.           188,898
                    Pwr. Agncy. Pwr. Sys.             1/01/2024      1/01/22 @ 100 Ref.
                    Rev. Rfndg. Bonds
                    Series 1987A
                    (Financial Guaranty),
                    (5).

6         100,000   Philadelphia Penn.        BBB     9.000          6/15/06 @ 100 S.F.           106,671
                    Arpt. Rev. Bonds                  6/15/2015      6/15/95 @ 103 Ref.
                    Series 1985
                    (Philadelphia Arpt.
                    Systems)

7         175,000   Westmoreland Cnty.        A*      6.500          7/01/99 @ 100 S.F.           171,082
                    Penn. Indus. Dev.                 7/01/2015      7/01/97 @ 102 Ref.
                    Auth. Hosp. Rfndg.
                    Bonds (Citizens Gen.
                    Hosp.) Series A 1987

8         250,000   Metro. Nashville         BAA2*    9.875          No Sinking Fund              267,475
                    Tenn. Arpt. Auth.                 10/01/2005     10/01/95 @ 102 Ref.
                    Special Fac. Rev.
                    Bonds (American
                    Airlines Inc. Prjt.)
                    Series 1985

9         250,000   Wichita Cnty. Tx.         A*      6.000          9/01/10 @ 100 S.F.           223,083
                    Hosp. Rev. Rfndg.                 9/01/2013      9/01/97 @ 102 Ref.
                    Bonds (Wichita Falls
                    Gen. Hosp. Brd.)
                    Series 1987

10        250,000   Peninsula Ports           AAA     8.700          2/01/95 @ 100 S.F.           276,105
       ----------                                                                             -----------
                    Authority of Virginia             8/01/2023      8/01/97 @ 102 Ref.
                    Hosp. Rev. Rfndg.
                    Bonds 1987 Series
                    (Whittaker Mem. Hosp.
                    Prjt. - FHA Insrd.
                    Mtg.)

    $   2,275,000                                                                          $    2,299,400
       ==========                                                                             ===========

       See accompanying footnotes to portfolio and notes to financial statements.
</TABLE> 
<PAGE>
Footnotes to Portfolio

June 30, 1994

(1) All ratings are by Standard & Poor's
Corporation excpet for those identified by an asterisk (*) which are
by Moody's Investors Service Inc.  A brief description of the ratings
symbols and their meanings is set forth under "Description of Bond
Ratings" in Part B of this Prospectus.

(2) See "The Trust - Portfolio" in
Part B of this Prospectus for an explanation of redemption features.
See "Tax Status" in Part B of this Prospectus for a statement of the
Federal tax consequences to a Certificateholder upon the sale,
redemption or maturity of a bond.

(3) At June 30, 1994, the net unrealized
depreciation of all the bonds was comprised of the following:

   Gross unrealized appreciation                    $   88,585
   Gross unrealized depreciation                      (121,313)

   Net unrealized depreciation                      $  (32,728)

(4)  The annual interest income, based
upon bonds held at June 30, 1994, to the Trust is $195,250.

(5)  The bonds have been prerefunded and
will be redeemed at the next refunding call date.

(6)  Bonds sold or called after June 30,
1994 are noted in a footnote "Changes in Trust Portfolio" under
"Description of Portfolio" in Part A of this Prospectus.

(7)  The Bonds may also be subject to
other calls, which may be permitted or required by events which
cannot be predicted (such as destruction, condemnation, termination
of a contract, or receipt of excess or unanticipated revenues). 

<PAGE>



                 Note:  Part A of this Prospectus May Not Be     
                        Distributed Unless Accompanied by Part B.


                            MUNICIPAL SECURITIES TRUST

                               67TH DISCOUNT SERIES
                              (MULTIPLIER PORTFOLIO)

    __________________________________________________________________

       
               The Trust is a unit investment trust designated 67th Discount
    Series ("Municipal Discount Trust") with an underlying portfolio of long-
    term tax-exempt bonds and was formed to preserve capital and to provide
    interest income (including, where applicable, earned original issue
    discount) which, in the opinions of bond counsel to the respective
    issuers, is, with certain exceptions, currently exempt from regular
    federal income tax under existing law but may be subject to state and
    local taxes.  (See "Tax Status" and "The Trust--Portfolio" in Part B of
    this Prospectus.)  The Sponsor is Bear, Stearns & Co. Inc.  The value of
    the Units of the Trust will fluctuate with the value of the bonds. 
    Minimum purchase:  1 Unit.

    __________________________________________________________________


               This Prospectus consists of two parts.  Part A contains the
    Summary of Essential Information as of June 30, 1994 (the "Evaluation
    Date"), a summary of certain specific information regarding the Trust and
    audited financial statements of the Trust, including the related
    portfolio, as of the Evaluation Date.  Part B of this Prospectus contains
    a general summary of the Trust. 

                    Investors should retain both parts of this
                         Prospectus for future reference.

    __________________________________________________________________


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

                     Prospectus Part A Dated October 28, 1994

        
    <PAGE>

       
               THE TRUST.  The Trust is a unit investment trust formed to
    preserve capital and to provide interest income (including, where
    applicable, earned original issue discount) which, in the opinions of bond
    counsel to the respective issuers, is, with certain exceptions, currently
    exempt from regular federal income tax under existing law through
    investment in a fixed, diversified portfolio of long-term bonds issued by
    or on behalf of states, municipalities and public authorities (the
    "Bonds").  Although the Supreme Court has determined that Congress has the
    authority to subject interest on bonds such as the Bonds in the Trust to
    regular federal income taxation, existing law excludes such interest from
    regular federal income tax.  Such interest income may, however, be subject
    to the federal corporate alternative minimum tax and to state and local
    taxes.  (See "Description of Portfolio" in this Part A for a description
    of those Bonds which pay interest income subject to the federal individual
    alternative minimum tax.  See also "Tax Status" in Part B of this
    Prospectus.)  The Bonds were acquired at prices which resulted in the
    portfolio as a whole being purchased at a deep discount from par value. 
    The portfolio may also include bonds issued at a substantial original
    issue discount some of which may be "Zero Coupon Bonds", which are
    original issue discount bonds that provide for payment at maturity at par
    value, but do not provide for the payment of current interest.  Some of
    the Bonds in the portfolio may have been purchased at an aggregate premium
    over par.  Some of the Bonds in the Trust have been issued with optional
    refunding or refinancing provisions ("Refunded Bonds") whereby the issuer
    of the Bond has the right to call such Bond prior to its stated maturity
    date (and other than pursuant to sinking fund provisions) and to issue new
    bonds ("Refunding Bonds") in order to finance the redemption.  Issuers
    typically utilize refunding calls in order to take advantage of lower
    interest rates in the marketplace.  Some of these Refunded Bonds may be
    called for redemption pursuant to pre-refunding provisions ("Pre-Refunded
    Bonds") whereby the proceeds from the issue of the Refunding Bonds are
    typically invested in government securities in escrow for the benefit of
    the holders of the Pre-Refunded Bonds until the refunding call date. 
    Usually, Pre-Refunded Bonds will bear a triple-A rating because of this
    escrow.  The issuers of Pre-Refunded Bonds must call such Bonds on their
    refunding call date.  Therefore, as of such date, the Trust will receive
    the call price for such bonds but will cease receiving interest income
    with respect to them.  For a list of those Bonds which are Pre-Refunded
    Bonds as of the Evaluation Date, if any, see "Notes to Financial
    Statements" in this Part A.  All of the Bonds in the Trust were rated "A"
    or better by Standard & Poor's Corporation or Moody's Investors Service,
    Inc. at the time originally deposited in the Trust.  For a discussion of
    the significance of such ratings see "Description of Bond Ratings" in
    Part B of this Prospectus and for a list of ratings on the Evaluation Date
    see the "Portfolio".  The payment of interest and preservation of capital
    are, of course, dependent upon the continuing ability of the issuers of
    the Bonds to meet their obligations.  There can be no assurance that the
    Trust's objectives will be achieved.  Investment in the Trust should be
    made with an understanding of the risks which an investment in long-term
    fixed rate obligations may entail, including the risk that the value of
    the underlying portfolio will decline with increases in interest rates,
    and that the value of Zero Coupon Bonds is subject to greater fluctuations
    than coupon bonds in response to changes in interest rates.  Each Unit in
    the Trust represents a 1/9000th undivided interest in the principal and
    net income of the Trust.  The principal amount of Bonds deposited in the
    Trust per Unit is reflected in the Summary of Essential Information.  (See
    "The Trust--Organization" in Part B of this Prospectus.)  The Units being
    offered hereby are issued and outstanding Units which have been purchased
    by the Sponsor in the secondary market. 

               PUBLIC OFFERING PRICE.  The secondary market Public Offering
    Price of each Unit is equal to the aggregate bid price of the Bonds in the
    Trust divided by the number of Units outstanding, plus a sales charge of
    5.5% of the Public Offering Price, which is the same as 5.820% of the net
    amount invested in Bonds per Unit.  In addition, accrued interest to
    expected date of settlement including earned original issue discount is
    added to the Public Offering Price.  If Units had been purchased on the
    Evaluation Date, the Public Offering Price per Unit would have been
    $516.80 plus accrued interest of $8.63 under the monthly distribution
    plan, $11.84 under the semi-annual distribution plan and $32.45 under the
    annual distribution plan, for a total of $525.43, $528.64 and $549.25,
    respectively.  The Public Offering Price per Unit can vary on a daily
    basis in accordance with fluctuations in the aggregate bid price of the
    Bonds.  (See the "Summary of Essential Information" and "Public Offering--
    Offering Price" in Part B of this Prospectus.)

               ESTIMATED LONG TERM RETURN AND ESTIMATED CURRENT RETURN.  Units
    of each Trust are offered to investors on a "dollar price" basis (using
    the computation method previously described under "Public Offering Price")
    as distinguished from a "yield price" basis often used in offerings of tax
    exempt bonds (involving the lesser of the yield as computed to maturity of
    bonds or to an earlier redemption date).  Since they are offered on a
    dollar price basis, the rate of return on an investment in Units of each
    Trust is measured in terms of "Estimated Current Return" and "Estimated
    Long Term Return". 

               Estimated Long Term Return is calculated by:  (1) computing the
    yield to maturity or to an earlier call date (whichever results in a lower
    yield) for each Bond in the Trust's portfolio in accordance with accepted
    bond practices, which practices take into account not only the interest
    payable on the Bond but also the amortization of premiums or accretion of
    discounts, if any; (2) calculating the average of the yields for the Bonds
    in the Trust's portfolio by weighing each Bond's yield by the market value
    of the Bond and by the amount of time remaining to the date to which the
    Bond is priced (thus creating an average yield for the portfolio of the
    Trust); and (3) reducing the average yield for the portfolio of the Trust
    in order to reflect estimated fees and expenses of the Trust and the
    maximum sales charge paid by investors.  The resulting Estimated Long Term
    Return represents a measure of the return to investors earned over the
    estimated life of the Trust.  (For the Estimated Long Term Return to
    Certificateholders under the monthly, semi-annual and annual distribution
    plans, see "Summary of Essential Information".)

               Estimated Current Return is a measure of the Trust's cash flow. 
    Estimated Current Return is computed by dividing the Estimated Net Annual
    Interest Income per Unit by the Public Offering Price per Unit.  In
    contrast to the Estimated Long Term Return, the Estimated Current Return
    does not take into account the amortization of premium or accretion of
    discount, if any, on the Bonds in the portfolio of the Trust.  Moreover,
    because interest rates on Bonds purchased at a premium are generally
    higher than current interest rates on newly issued bonds of a similar type
    with comparable rating, the Estimated Current Return per Unit may be
    affected adversely if such Bonds are redeemed prior to their maturity.  

               The Estimated Net Annual Interest Income per Unit of the Trust
    will vary with changes in the fees and expenses of the Trustee and the
    Evaluator applicable to the Trust and with the redemption, maturity, sale
    or other disposition of the Bonds in the Trust.  The Public Offering Price
    will vary with changes in the bid prices of the Bonds.  Therefore, there
    is no assurance that the present Estimated Current Return or Estimated
    Long Term Return will be realized in the future.  (For the Estimated
    Current Return to Certificateholders under the monthly, semi-annual and
    annual distribution plans, see "Summary of Essential Information".  See
    "Estimated Long Term Return and Estimated Current Return" in Part B of
    this Prospectus.)

               A schedule of cash flow projections is available from the
    Sponsor upon request.

               DISTRIBUTIONS.  Distributions of interest income, less
    expenses, will be made by the Trust either monthly, semi-annually or
    annually depending upon the plan of distribution applicable to the Unit
    purchased.  A purchaser of a Unit in the secondary market will initially
    receive distributions in accordance with the plan selected by the prior
    owner of such Unit and may thereafter change the plan as provided under
    "Interest and Principal Distributions" in Part B of the Prospectus. 
    Distributions of principal, if any, will be made semi-annually on June 15
    and December 15 of each year.  (See "Rights of Certificateholders--
    Interest and Principal Distributions" in Part B of this Prospectus.  For
    estimated monthly, semi-annual and annual interest distributions, see
    "Summary of Essential Information.")  

               MARKET FOR UNITS.  The Sponsor, although not obligated to do
    so, intends to maintain a market for the Units at prices based upon the
    aggregate bid price of the Bonds in the portfolio of the Trust.  The
    secondary market repurchase price is based on the aggregate bid price of
    the Bonds in the Trust portfolio, and the reoffer price is based on the
    aggregate bid price of the Bonds plus a sales charge of 5.5% (5.820% of
    the net amount invested) plus net accrued interest.  If such a market is
    not maintained, a Certificateholder will be able to redeem his Units with
    the Trustee at a price also based upon the aggregate bid price of the
    Bonds.  (See "Sponsor Repurchase" and "Public Offering--Offering Price" in
    Part B of this Prospectus.)

               TOTAL REINVESTMENT PLAN.  Certificateholders under the semi-
    annual and annual plans of distribution have the opportunity to have their
    interest distributions and principal distributions, if any, reinvested in
    available series of "Municipal Securities Trust."  (See "Total
    Reinvestment Plan" and for residents of Texas, see "Total Reinvestment
    Plan for Texas Residents" in Part B of this Prospectus.)  The Plan is not
    designed to be a complete investment program.
        

    <PAGE>
                            MUNICIPAL SECURITIES TRUST
                               67TH DISCOUNT SERIES
       
               SUMMARY OF ESSENTIAL INFORMATION AS OF JUNE 30, 1994

     Date of Deposit:  October 13, 1988         Minimum Principal Distribution:
     Principal Amount of Bonds ...$4,955,000     $1.00 per Unit.
     Number of Units .............9,000         Weighted Average Life
     Fractional Undivided Inter-                 to Maturity:  15.9 Years.
       est in Trust per Unit .....1/9000        Minimum Value of Trust:
     Principal Amount of                         Trust may be terminated if
       Bonds per Unit ............$550.56        value of Trust is less than
     Secondary Market Public                     $3,600,000 in principal
       Offering Price**                          amount of Bonds.
       Aggregate Bid Price                      Mandatory Termination Date:
         of Bonds in Trust .......$4,395,462+++  The earlier of December 31,
       Divided by 9,000 Units ....$488.38        2037 or the disposition of
       Plus Sales Charge of 5.5%                 the last Bond in the Trust.
         of Public Offering Price $28.42        Trustee***:  United States
       Public Offering Price                     Trust Company of New York.
         per Unit ................$516.80+      Trustee's Annual Fee:  Monthly 
     Redemption and Sponsor's                    plan $.96 per $1,000; semi-
       Repurchase Price                          annual plan $.50 per $1,000;
       per Unit ..................$488.38+       and annual plan is $.32 per
                                         +++     $1,000.
                                         ++++   Evaluator: Kenny S&P Evaluation
     Excess of Secondary Market                  Services. 
       Public Offering Price                    Evaluator's Fee for Each
       over Redemption and                       Evaluation:  Minimum of $15
       Sponsor's Repurchase                      plus $.25 per each issue of
       Price per Unit ............$28.42++++     Bonds in excess of 50 issues
     Difference between Public                   (treating separate maturities
       Offering Price per Unit                   as separate issues).
       and Principal Amount per                 Sponsor:  Bear, Stearns & Co.
       Unit Premium/(Discount) ...$(33.76)       Inc.
     Evaluation Time:  4:00 p.m.                Sponsor's Annual Fee:  Maximum
       New York Time.                            of $.25 per $1,000 principal
                                                 amount of Bonds (see "Trust
                                                 Expenses and Charges" in
                                                 Part B of this Prospectus).

        PER UNIT INFORMATION BASED UPON INTEREST DISTRIBUTION PLAN ELECTED

                                            Monthly   Semi-Annual   Annual
                                            Option      Option      Option


    Gross annual interest income# ......... $42.22      $42.22      $42.22
    Less estimated annual fees and
      expenses ............................   1.43        1.03         .90
    Estimated net annual interest           ______      ______      ______
      income (cash)# ...................... $40.79      $41.19      $41.32
    Estimated interest distribution# ......   3.39       20.59       41.32
    Estimated daily interest accrual# .....  .1133       .1144       .1147
    Estimated current return#++ ...........  7.89%       7.97%       8.00%
    Estimated long term return++ ........... 4.73%       4.81%       4.83%
    Record dates .......................... 1st of      Dec. 1 and   Dec. 1
                                            each month  June 1
    Interest distribution dates ........... 15th of     Dec. 15 and  Dec. 15
                                            each month  June 15
        
    <PAGE>
       *  The Date of Deposit is the date on which the Trust Agreement was
          signed and the deposit of the Bonds with the Trustee made. 

      **  For information regarding offering price per unit and applicable
          sales charge under the Total Reinvestment Plan, see "Total
          Reinvestment Plan" in Part B of this Prospectus. 

     ***  The Trustee maintains its corporate trust office at 770 Broadway,
          New York, New York 10003 (tel. no.:  1-800-428-8890).  For
          information regarding redemption by the Trustee, see "Trustee
          Redemption" in Part B of this Prospectus.
       
       +  Plus accrued interest to expected date of settlement (approximately
          five business days after purchase) of $8.63 monthly, $11.84 semi-
          annually and $32.45 annually. 
        
      ++  The estimated current return and estimated long term return are
          increased for transactions entitled to a discount (see "Employee
          Discounts" in Part B of this Prospectus), and are higher under the
          semi-annual and annual options due to lower Trustee's fees and
          expenses. 

     +++  Based solely upon the bid side evaluation of the underlying Bonds
          (including, where applicable, undistributed cash in the principal
          account).  Upon tender for redemption, the price to be paid will be
          calculated as described under "Trustee Redemption" in Part B of this
          Prospectus. 

    ++++  See "Comparison of Public Offering Price, Sponsor's Repurchase Price
          and Redemption Price" in Part B of this Prospectus. 

       #  Does not include income accrual from original issue discount bonds,
          if any.

    <PAGE>
       
                          INFORMATION REGARDING THE TRUST
                                AS OF JUNE 30, 1994


    DESCRIPTION OF PORTFOLIO

          The portfolio of the Trust consists of 11 issues representing
    obligations of issuers located in 10 states.  The Sponsor has not
    participated as a sole underwriter or manager, co-manager or member of an
    underwriting syndicate from which any of the initial aggregate principal
    amount of the Bonds were acquired.  None of the Bonds are obligations of
    state and local housing authorities; approximately 10.0% are hospital
    revenue bonds; approximately 10.0% are issued in connection with the
    financing of nuclear generating facilities; and none are "mortgage
    subsidy" bonds.  All of the Bonds in the Trust are subject to redemption
    prior to their stated maturity dates pursuant to sinking fund or call
    provisions.  The Bonds may also be subject to other calls, which may be
    permitted or required by events which cannot be predicted (such as
    destruction, condemnation, termination of a contract, or receipt of excess
    or unanticipated revenues).  One issue representing $145,000 of the
    aggregate principal amount of the Bonds is a general obligation bond.  All
    ten of the remaining issues representing $4,810,000 of the principal
    amount of the Bonds are payable from the income of a specific project or
    authority and are not supported by the issuer's power to levy taxes.  The
    portfolio is divided for purpose of issue as follows:  Airport
    Facilities 4, Coal Power 2, Electric and Gas 1, Hospital 1, Nuclear
    Power 1 and Sales Tax 1.  For an explanation of the significance of these
    factors see "The Trust--Portfolio" in Part B of this Prospectus. 

          As of June 30, 1994, $1,000,000 (approximately 20.1% of the
    aggregate principal amount of the Bonds) were original issue discount
    bonds.  Of these original issue discount bonds, $1,000,000 (approximately
    20.1% of the aggregate principal amount of the Bonds) were Zero Coupon
    Bonds.  Zero Coupon Bonds do not provide for the payment of any current
    interest and provide for payment at maturity at par value unless sooner
    sold or redeemed.  The market value of Zero Coupon Bonds is subject to
    greater fluctuations than coupon bonds in response to changes in interest
    rates.  None of the aggregate principal amount of the Bonds in the Trust
    were purchased at a "market" discount from par value at maturity,
    approximately 79.9% were purchased at a premium and none were purchased at
    par.  For an explanation of the significance of these factors see
    "Discount and Zero Coupon Bonds" in Part B of this Prospectus. 

          None of the Bonds in the Trust are subject to the federal individual
    alternative minimum tax under the Tax Reform Act of 1986.  See "Tax
    Status" in Part B of this Prospectus.

        
    <PAGE>
                       FINANCIAL AND STATISTICAL INFORMATION


    Selected data for each Unit outstanding for the periods listed below:

                                                                    Distribu-
                                                                    tions of
                                          Distributions of Interest Principal
                                         During the Period (per Unit) During
                             Net Asset*            Semi-              the
                  Units Out-   Value     Monthly   Annual   Annual   Period
    Period Ended   standing   Per Unit   Option    Option   Option  (Per Unit)

       
    June 30, 1992         9,000  $598.84  $46.56   $47.17   $47.44 $ 2.23
    June 30, 1993         9,000   556.01   44.71    45.29    46.89  42.35
    June 30, 1994         9,000   500.10   40.77    41.31    43.05  37.24



    *     Net Asset Value per Unit is calculated by dividing net assets as
          disclosed in the "Statement of Net Assets" by the number of Units
          outstanding as of the date of the Statement of Net Assets.  See
          Note 5 of Notes to Financial Statements for a description of the
          components of Net Assets.
        
<PAGE>


Independent Auditors' Report


The Sponsor, Trustee and Certificateholders
Municipal Securities Trust, 67th Discount Series:


We have audited the accompanying statement of net assets, including the
portfolio, of Municipal Securities Trust, 67th Discount Series as of
June 30, 1994, and the related statements of operations, and changes
in net assets for each of the years in the three year period then ended.
These financial statements are the responsibility of the Trustee
(see note 2).  Our responsibility is to express an opinion on these
financial statements based on our audits.

We conducted our audits in accordance with generally accepted auditing
standards.  Those standards require that we plan and perform the
audit to obtain reasonable assurance about whether the financial
statements are free of material misstatement.  An audit includes
examining, on a test basis, evidence supporting the amounts and
disclosures in the financial statements.  Our procedures included
confirmation of securities owned as of June 30, 1994, by correspondence
with the Trustee.  An audit also includes assessing the accounting
principles used and significant estimates made by management, as
well as evaluating the overall financial statement presentation.
We believe that our audits provide a reasonable basis for our opinion.

In our opinion, the financial statements referred to above present
fairly, in all material respects, the financial position of Municipal
Securities Trust, 67th Discount Series as of June 30, 1994, and the
results of its operations and the changes in its net assets for each
of the years in the three year period then ended, in conformity with
generally accepted accounting principles.




KPMG Peat Marwick LLP


New York, New York
September 15, 1994
<PAGE>



          MUNICIPAL SECURITIES TRUST, 67TH DISCOUNT SERIES

                    Statement of Net Assets

                        June 30, 1994

Investments in marketable securities,
   at market value (cost     $4,559,788)                 $   4,395,379

Excess of other assets over total liabilities                  105,527
                                                          ------------

Net assets (  9,000 units   of fractional undivided
   interest outstanding,    $500.10 per  unit)          $   4,500,906
                                                         ============

See accompanying notes to financial statements.
<PAGE>
<TABLE> 

                          MUNICIPAL SECURITIES TRUST, 67TH DISCOUNT SERIES

                               Statements of Operations
<CAPTION>
                                                               Years ended June 30,
                                                  ------------ --  ------------ --  ------------
                                                      1994             1993             1992
                                                  ------------     ------------     ------------
<S>                                            <C>                <C>               <C> 
Investment income - interest                   $      394,537          431,755          450,131
                                                  ------------     ------------     ------------

Expenses:
   Trustee's fees                                       7,010            8,345            8,329
   Evaluator's fees                                     3,505            3,341            2,961
   Sponsor's advisory fee                               1,913            1,993            1,998
                                                  ------------     ------------     ------------

           Total expenses                              12,428           13,679           13,288
                                                  ------------     ------------     ------------

           Investment income, net                     382,109          418,076          436,843
                                                  ------------     ------------     ------------

Realized and unrealized gain (loss)
   on investments:
     Net realized loss
       on bonds sold or called                        (18,410)         (18,539)          (2,659)
     Unrealized appreciation
       (depreciation) for the year                   (162,971)             406           65,955
                                                  ------------     ------------     ------------

           Net gain (loss) on investments            (181,381)         (18,133)          63,296
                                                  ------------     ------------     ------------

           Net increase in net
             assets resulting
             from operations                   $      200,728          399,943          500,139
                                                  ============     ============     ============

See accompanying notes to financial statements.
</TABLE> 

<PAGE>
<TABLE> 
                 MUNICIPAL SECURITIES TRUST, 67TH DISCOUNT SERIES

                        Statements of Changes in Net Assets
<CAPTION>
                                                         Years ended June 30,
                                            ------------- -- ------------    ------------
                                                1994             1993            1992
                                            -------------    ------------    ------------
<S>                                       <C>                <C>             <C> 
Operations:
   Investment income, net                 $      382,109         418,076         436,843
   Net realized loss on
     bonds sold or called                        (18,410)        (18,539)         (2,659)
   Unrealized appreciation
     (depreciation) for the year                (162,971)            406          65,955
                                            -------------    ------------    ------------

               Net increase in net
                 assets resulting
                 from operations                 200,728         399,943         500,139
                                            -------------    ------------    ------------

Distributions:
   To Certificateholders:
     Investment income                           368,733         404,312         420,416
     Principal                                   335,160         381,150          20,070
                                            -------------    ------------    ------------

               Total distributions               703,893         785,462         440,486
                                            -------------    ------------    ------------

               Total increase (decrease)        (503,165)       (385,519)         59,653

Net assets at beginning of year                5,004,071       5,389,590       5,329,937
                                            -------------    ------------    ------------

Net assets at end of year (including
   undistributed net investment
   income of $146,882,   $161,173 and
   $156,830, respectively)                $    4,500,906       5,004,071       5,389,590
                                            =============    ============    ============

See accompanying notes to financial statements.
</TABLE> 

<PAGE>

Notes to Financial Statements

June 30, 1994, 1993 and 1992


(1) Organization and Financial and Statistical Information

Municipal Securities Trust, 67th Discount Series (Trust) was
organized on October 13, 1988 by Bear Stearns & Co Inc. (Sponsor)
under the laws of the State of New York by a Trust Indenture and
Agreement, and is registered under the Investment Company Act
of 1940.

(2) Summary of Significant Accounting Policies

The Trustee has custody of and responsibility for the accounting
records and financial statements of the Trust and is responsible for
establishing and maintaining a system of internal control related
thereto.

United States Trust Company of New York (Trustee) is also responsible
for all estimates of expenses and accruals reflected in the Trust's
financial statements.  The accompanying financial statements have
been adjusted to record the unrealized appreciation (depreciation) of
investments and to record interest income and expenses on the accrual
basis.

The discount on the zero-coupon bonds is accreted by the interest
method over the respective lives of the bonds.  The accretion of such
discount is included in interest income; however, it is not
distributed until realized in cash upon maturity or sale of the
respective bonds.

Investments are carried at market value which is determined by either
Standard & Poor's Corporation or Moody's Investors Service Inc.
(Evaluator) as discussed in Footnotes to Portfolio.  The market value
of the investments is based upon the bid prices for the bonds at the
end of the period, except that the market value on the date of
deposit represents the cost to the Trust based on the offering prices
for investments at that date.  The difference between cost (including
accumulated accretion of original issue discount on zero-coupon
bonds) and market value is reflected as unrealized appreciation
(depreciation) of investments.  Securities transactions are recorded
on the trade date.  Realized gains (losses) from securities
transactions are determined on the basis of average cost of the
securities sold or redeemed.

(3)  Income Taxes

The Trust is not subject to Federal income taxes as provided for by
the Internal Revenue Code.

(4) Trust Administration

The fees and expenses of the Trust are incurred and paid on the basis
set forth under "Trust Expenses and Charges" in Part B of this
Prospectus.

The Trust Indenture and Agreement provides for interest distributions
as often as monthly (depending upon the distribution plan elected by
the Certificateholders).

The Trust Indenture and Agreement further requires that principal
received from the disposition of bonds, other than those bonds sold
in connection with the redemption of units, be distributed to
Certificateholders.

See "Financial and Statistical Information" in Part A of this Prospectus
for the amounts of per unit distributions during the years ended June
30, 1994, 1993 and 1992.

The Trust Indenture and Agreement also requires the Trust to redeem
units tendered.  No units have been redeemed since the inception of
the Trust.


(5)   Net Assets

At June 30, 1994, the net assets of the Trust represented the
interests of Certificateholders as follows:

Original cost to Certificateholders               $ 5,663,516
Less initial gross underwriting commission           (311,490)

                                                    5,352,026

Cost of securities sold or called                     (833,676)
Net unrealized depreciation                           (164,409)
Undistributed net investment income                    146,882
Undistributed proceeds from bonds sold or called            83

                      Total                       $  4,500,906


The original cost to Certificateholders, less the initial gross
underwriting commission, represents the aggregate initial public
offering price net of the applicable sales charge on 9,000 units of
fractional undivided interest of the Trust as of the date of
deposit.

Undistributed net investment income includes accumulated accretion
of original issue discount of $41,438.

<PAGE>
<TABLE> 

MUNICIPAL SECURITIES TRUST, 67TH DISCOUNT SERIES
Portfolio
June 30, 1994

<CAPTION>

Port    Aggregate                                      Coupon Rate/    Redemption Feature
folio   Principal       Name of Issuer      Ratings    Date(s) of      S.F.--Sinking Fund        Market
No.      Amount       and Title of Bonds      (1)      Maturity(2)     Ref.--Refunding(2) (7)    Value(3)
- ---     ---------    ---------------------   ------    ------------    ----------------------    ----------
<S>    <C>           <C>                     <C>       <C>             <C>                    <C> 
 1     $  500,000    Reg. Arpts.              BA1*     11.250%         11/01/06 @ 100 S.F.    $     548,560
                     Improvement Corp.                 11/01/2025      11/01/95 @ 103 Ref.
                     Facs. Sublease Rev.
                     Bonds 1985 Issue
                     Western Air Lines
                     Inc. (L.A.
                     International
                     Airport)

 2        500,000    Burke Cnty. Ga. Rev.     AA-      9.875           01/01/06 @ 100 S.F.          524,355
                     Auth. Poll. Cntrl.                01/01/2010      01/01/95 @ 102 Ref.
                     Rev. Bonds
                     (Oglethorpe Pwr.
                     Corp. Vogtle Prjt.)
                     Series 1985

 3        360,000    Jefferson La. Sales      AAA      8.250           07/01/98 @ 100 S.F.          400,666
                     Tax District                      07/01/2002      07/01/99 @ 100 Ref.
                     (Jefferson Parish
                     La.) Spec. Sales Tax
                     Dev. Rfndg. Bonds
                     1986 Series A (5)

 4        500,000    Salem Cnty. N.J.         A2*      10.500          No Sinking Fund              521,780
                     Indus. Poll.  Cntrl.              11/01/2014      11/01/94 @ 102 Ref.
                     Fncg. Auth.  Rev.
                     Bonds Publ Serv.
                     Elec. & Gas Co. Prjt.
                     Series C

 5        145,000    Springfield Lane          A*      8.700           No Sinking Fund              154,719
                     Cnty. Or. Advance                 06/01/2004      06/01/96 @ 100 Ref.
                     Rfndg. Gen. Oblig.
                     Imprvmt. Bonds Series
                     1987 (5)

 6        200,000    Philadelphia Penn        BBB      9.000           06/15/06 @ 100 S.F.          213,342
                     Arpt. Rev. Bonds                  06/15/2015      06/15/95 @ 103 Ref.
                     Series 1985
                     (Philadelphia Airport
                     Systems)

 7        500,000    Metro. Nashville        BAA2*     9.875           No Sinking Fund              534,950
                     Tenn. Arpt. Auth.                 10/01/2005      10/01/95 @ 102 Ref.
                     Special Fac. Rev.
                     Bonds (American
                     Airlines Inc. Prjt.)
                     Series 1985

 8        500,000    Dallas-Ft. Worth Tx.     A1*      9.125           11/01/06 @ 100 S.F.          542,890
                     Intrnt. Arpt. Brd.                11/01/2015      11/01/95 @ 102.5 Ref.
                     Joint Rev. Bonds
                     Series 1985

 9        250,000    Sam Rayburn Tx. Muni.    AAA      9.250           09/01/04  @ 100 S.F.         268,398
                     Pwr. Agncy. Pwr.                  09/01/2008      09/01/95 @ 102 Ref.
                     Supl. Sys. Rev. Bonds
                     (MBIA) (5)

10        500,000    Peninsula Ports          AAA      8.700           02/01/95 @ 100 S.F.          552,210
                     Authority of Virginia             08/01/2023      08/01/97 @ 102 Ref.
                     Hosp. Rfndg. Bonds
                     1987 Series
                     (Whittaker Mem. Hosp.
                     Prjt. - FHA Insrd.
                     Mtg.)

11      1,000,000    Intermountain Utah      AAAAAA    0.000           01/01/13  @ 50.753           133,509
                     Pwr. Agency Pwr.                  07/01/2020      S.F.  07/01/02 @
                     Sply. Ref. Rfndg.                                 20.620 Ref.
                     Bonds 1987C (5)
        ---------                                                                                ----------

     $  4,955,000                                                                             $   4,395,379
        =========                                                                                ==========
See accompanying footnotes to portfolio and notes to financial statements.
</TABLE> 

<PAGE>
Footnotes to Portfolio

June 30, 1994




(1)  All ratings are by Standard & Poor's Corporation, except for 
those identified by an asterisk (*) which are by Moody's Investors 
Service, Inc.  A brief description of the ratings symbols and 
their meanings is set forth under "Description of Bond Ratings" 
in Part B of this Prospectus.

(2)  See "The Trust - Portfolio" in Part B of this Prospectus for an
explanation of redemption features.  See "Tax Status" in Part B of
this Prospectus for a statement of the Federal tax consequences to a
Certificateholder upon the sale, redemption or maturity of a bond.

(3)  At June 30, 1994, the net unrealized depreciation of all the 
bonds was comprised of the following:

Gross unrealized appreciation              $   78,422
Gross unrealized depreciation                (242,831)

Net unrealized depreciation                 $(164,409)

(4)   The annual interest income based on bonds held at June 30, 1994,
(excluding accretion of original issue discount on zero-coupon bonds),
to the Trust is $380,065.

(5) The bonds have been prerefunded and will be redeemed at the next
refunding call date.

(6)  Bonds sold or called after June 30, 1994 are noted in a footnote
"Changes in Trust Portfolio" under "Description of Portfolio" in Part A
of this Prospectus.

(7) The Bonds may also be subject to other calls, which may be 
permitted or required by events which cannot be predicted (such 
as destruction, condemnation, termination of a contract, or receipt
of excess or unanticipated revenues).
<PAGE>




                 Note:  Part A of This Prospectus May Not Be     
                        Distributed Unless Accompanied by Part B.


                            MUNICIPAL SECURITIES TRUST

                                     SERIES 40

    __________________________________________________________________

       
          The Trust is a unit investment trust designated Series 40
    ("Municipal Trust") with an underlying portfolio of long-term tax-exempt
    bonds issued by or on behalf of states, municipalities and public
    authorities, and was formed to preserve capital and to provide interest
    income (including, where applicable, earned original issue discount)
    which, in the opinions of bond counsel to the respective issuers, is, with
    certain exceptions, currently exempt from regular Federal income tax
    (including where applicable earned original discount) under existing law
    but may be subject to state and local taxes.  Such interest income may,
    however, be a specific preference item for purposes of Federal individual
    and/or corporate alternative minimum tax.  Investors may recognize taxable
    capital gain upon maturity or earlier redemption of the underlying bonds. 
    (See "Tax Status" and "The Trust--Portfolio" in Part B of this
    Prospectus.)  The Sponsor is Bear, Stearns & Co. Inc.  The value of the
    Units of the Trust will fluctuate with the value of the underlying bonds. 
    Minimum purchase:  1 Unit. 

    __________________________________________________________________


          This Prospectus consists of two parts.  Part A contains the Summary
    of Essential Information as of June 30, 1994 (the "Evaluation Date"), a
    summary of certain specific information regarding the Trust and audited
    financial statements of the Trust, including the related portfolio, as of
    the Evaluation Date.  Part B of this Prospectus contains a general summary
    of the Trust. 

                    Investors should retain both parts of this
                         Prospectus for future reference.

    __________________________________________________________________


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



                     Prospectus Part A Dated October 28, 1994

        
    <PAGE>

       
          THE TRUST.  The Trust is a unit investment trust formed to preserve
    capital and to provide interest income (including, where applicable,
    earned original issue discount) which, in the opinions of bond counsel to
    the respective issuers, is, with certain exceptions, currently exempt from
    regular federal income tax under existing law through investment in a
    fixed, diversified portfolio of long-term bonds (the "Bonds") issued by or
    on behalf of states, municipalities and public authorities.  A Trust
    designated as a short/intermediate-term trust must have a dollar-weighted
    average portfolio maturity of more than two years but less than five
    years; a Trust designated as an intermediate-term trust must have a
    dollar-weighted average portfolio maturity of more than three years but
    not more than ten years; a Trust designated as an intermediate/long-term
    trust must have a dollar-weighted average portfolio maturity of more than
    ten years but less than fifteen years; and a Trust designated as a long-
    term trust must have a dollar-weighted average portfolio maturity of more
    than ten years.  Although the Supreme Court has determined that Congress
    has the authority to subject interest on bonds such as the Bonds in the
    Trust to regular federal income taxation, existing law excludes such
    interest from regular federal income tax.  Such interest income may,
    however, be subject to the federal corporate alternative minimum tax and
    to state and local taxes.  (See "Description of Portfolio" in this Part A
    for a description of those Bonds which pay interest income subject to the
    federal individual alternative minimum tax.  See also "Tax Status" in
    Part B of this Prospectus.)  Some of the Bonds in the portfolio may be
    "Zero Coupon Bonds", which are original issue discount bonds that provide
    for payment at maturity at par value, but do not provide for the payment
    of any current interest.  Some of the Bonds in the portfolio may have been
    purchased at an aggregate premium over par.  Some of the Bonds in the
    Trust have been issued with optional refunding or refinancing provisions
    ("Refunded Bonds") whereby the issuer of the Bond has the right to call
    such Bond prior to its stated maturity date (and other than pursuant to
    sinking fund provisions) and to issue new bonds ("Refunding Bonds") in
    order to finance the redemption.  Issuers typically utilize refunding
    calls in order to take advantage of lower interest rates in the
    marketplace.  Some of these Refunded Bonds may be called for redemption
    pursuant to pre-refunding provisions ("Pre-Refunded Bonds") whereby the
    proceeds from the issue of the Refunding Bonds are typically invested in
    government securities in escrow for the benefit of the holders of the Pre-
    Refunded Bonds until the refunding call date.  Usually, Pre-Refunded Bonds
    will bear a triple-A rating because of this escrow.  The issuers of Pre-
    Refunded Bonds must call such Bonds on their refunding call date. 
    Therefore, as of such date, the Trust will receive the call price for such
    bonds but will cease receiving interest income with respect to them.  For
    a list of those Bonds which are Pre-Refunded Bonds, if any, as of the
    Evaluation Date, see "Notes to Financial Statements" in this Part A.  All
    of the Bonds in the Trust were rated "A" or better by Standard & Poor's
    Corporation or Moody's Investors Service, Inc. at the time originally
    deposited in the Trust.  For a discussion of the significance of such
    ratings see "Description of Bond Ratings" in Part B of this Prospectus and
    for a list of ratings on the Evaluation Date see the "Portfolio".  The
    payment of interest and preservation of capital are, of course, dependent
    upon the continuing ability of the issuers of the Bonds to meet their
    obligations.  There can be no assurance that the Trust's objectives will
    be achieved.  Investment in the Trust should be made with an understanding
    of the risks which an investment in long-term fixed rate obligations may
    entail, including the risk that the value of the underlying portfolio will
    decline with increases in interest rates, and that the value of Zero
    Coupon Bonds is subject to greater fluctuations than coupon bonds in
    response to changes in interest rates.  Each Unit in the Trust represents
    a 1/4000th undivided interest in the principal and net income of the
    Trust.  The principal amount of Bonds deposited in the Trust per Unit is
    reflected in the Summary of Essential Information.  (See "The Trust--
    Organization" in Part B of this Prospectus.)  The Units being offered
    hereby are issued and outstanding Units which have been purchased by the
    Sponsor in the secondary market. 

          PUBLIC OFFERING PRICE.  The secondary market Public Offering Price
    of each Unit is equal to the aggregate bid price of the Bonds in the Trust
    divided by the number of Units outstanding, plus a sales charge of 4.9% of
    the Public Offering Price, which is the same as 5.152% of the net amount
    invested in Bonds per Unit.  In addition, accrued interest to expected
    date of settlement is added to the Public Offering Price.  If Units had
    been purchased on the Evaluation Date, the Public Offering Price per Unit
    would have been $930.57 plus accrued interest of $14.16 under the monthly
    distribution plan, $20.12 under the semi-annual distribution plan and
    $58.49 under the annual distribution plan, for a total of $944.73, $950.69
    and $989.06, respectively.  The Public Offering Price per Unit can vary on
    a daily basis in accordance with fluctuations in the aggregate bid price
    of the Bonds.  (See the "Summary of Essential Information" and "Public
    Offering--Offering Price" in Part B of this Prospectus.)

          ESTIMATED LONG TERM RETURN AND ESTIMATED CURRENT RETURN.  Units of
    each Trust are offered to investors on a "dollar price" basis (using the
    computation method previously described under "Public Offering Price") as
    distinguished from a "yield price" basis often used in offerings of tax
    exempt bonds (involving the lesser of the yield as computed to maturity of
    bonds or to an earlier redemption date).  Since they are offered on a
    dollar price basis, the rate of return on an investment in Units of each
    Trust is measured in terms of "Estimated Current Return" and "Estimated
    Long Term Return".

          Estimated Long Term Return is calculated by:  (1) computing the
    yield to maturity or to an earlier call date (whichever results in a lower
    yield) for each Bond in the Trust's portfolio in accordance with accepted
    bond practices, which practices take into account not only the interest
    payable on the Bond but also the amortization of premiums or accretion of
    discounts, if any; (2) calculating the average of the yields for the Bonds
    in the Trust's portfolio by weighing each Bond's yield by the market value
    of the Bond and by the amount of time remaining to the date to which the
    Bond is priced (thus creating an average yield for the portfolio of the
    Trust); and (3) reducing the average yield for the portfolio of the Trust
    in order to reflect estimated fees and expenses of the Trust and the
    maximum sales charge paid by investors.  The resulting Estimated Long Term
    Return represents a measure of the return to investors earned over the
    estimated life of the Trust.  (For the Estimated Long Term Return to
    Certificateholders under the monthly, semi-annual and annual distribution
    plans, see "Summary of Essential Information".)

          Estimated Current Return is a measure of the Trust's cash flow. 
    Estimated Current Return is computed by dividing the Estimated Net Annual
    Interest Income per Unit by the Public Offering Price per Unit.  In
    contrast to the Estimated Long Term Return, the Estimated Current Return
    does not take into account the amortization of premium or accretion of
    discount, if any, on the Bonds in the portfolio of the Trust.  Moreover,
    because interest rates on Bonds purchased at a premium are generally
    higher than current interest rates on newly issued bonds of a similar type
    with comparable rating, the Estimated Current Return per Unit may be
    affected adversely if such Bonds are redeemed prior to their maturity.  

          The Estimated Net Annual Interest Income per Unit of the Trust will
    vary with changes in the fees and expenses of the Trustee and the
    Evaluator applicable to the Trust and with the redemption, maturity, sale
    or other disposition of the Bonds in the Trust.  The Public Offering Price
    will vary with changes in the bid prices of the Bonds.  Therefore, there
    is no assurance that the present Estimated Current Return or Estimated
    Long Term Return will be realized in the future.  (For the Estimated
    Current Return to Certificateholders under the monthly, semi-annual and
    annual distribution plans, see "Summary of Essential Information".  See
    "Estimated Long Term Return and Estimated Current Return" in Part B of
    this Prospectus.)

          A schedule of cash flow projections is available from the Sponsor
    upon request.

          DISTRIBUTIONS.  Distributions of interest income, less expenses,
    will be made by the Trust either monthly, semi-annually or annually
    depending upon the plan of distribution applicable to the Unit purchased. 
    A purchaser of a Unit in the secondary market will initially receive
    distributions in accordance with the plan selected by the prior owner of
    such Unit and may thereafter change the plan as provided in "Interest and
    Principal Distributions" in Part B of this Prospectus.  Distributions of
    principal, if any, will be made semi-annually on June 15 and December 15
    of each year.  (See "Rights of Certificateholders--Interest and Principal
    Distributions" in Part B of this Prospectus.  For estimated monthly, semi-
    annual and annual interest distributions, see "Summary of Essential
    Information".)

          MARKET FOR UNITS.  The Sponsor, although not obligated to do so,
    intends to maintain a market for the Units at prices based upon the
    aggregate bid price of the Bonds in the portfolio of the Trust.  The
    Secondary Market repurchase price is based on the aggregate bid price of
    the Bonds in the Trust portfolio, and the reoffer price is based on the
    aggregate bid price of the Bonds plus a sales charge of 4.9% of the Public
    Offering Price (5.152% of the net amount invested) plus net accrued
    interest.  If such a market is not maintained, a Certificateholder will be
    able to redeem his Units with the Trustee at a price also based upon the
    aggregate bid price of the Bonds.  (See "Sponsor Repurchase" and "Public
    Offering--Offering Price" in Part B of this Prospectus.)

          TOTAL REINVESTMENT PLAN.  Certificateholders under the semi-annual
    and annual plans of distribution have the opportunity to have their
    interest distributions and principal distributions, if any, reinvested in
    available series of "Insured Municipal Securities Trust" or "Municipal
    Securities Trust."  (See "Total Reinvestment Plan" and for residents of
    Texas, see "Total Reinvestment Plan for Texas Residents" in Part B of this
    Prospectus.)  The Plan is not designed to be a complete investment
    program.
         

    <PAGE>
                            MUNICIPAL SECURITIES TRUST
                                     SERIES 40

       
               SUMMARY OF ESSENTIAL INFORMATION AS OF JUNE 30, 1994

     Date of Deposit:  December 15, 1988        Minimum Principal Distribution:
     Principal Amount of Bonds ...$3,550,000     $1.00 per Unit.
     Number of Units .............4,000         Weighted Average Life to
     Fractional Undivided Inter-                Maturity:
       est in Trust per Unit .....1/4000         15 Years.
     Principal Amount of                        Minimum Value of Trust:
       Bonds per Unit ............$887.50        Trust may be terminated if
     Secondary Market Public                     value of Trust is less than
       Offering Price**                          $1,600,000 in principal
       Aggregate Bid Price                       amount of Bonds.
         of Bonds in Trust .......$3,539,901+++ Mandatory Termination Date:
       Divided by 4,000 Units ....$884.98        The earlier of December 31,
       Plus Sales Charge of 4.9%                 2037 or the disposition of
         of Public Offering Price $45.60         the last Bond in the Trust.
       Public Offering Price                    Trustee***:  United States
         per Unit ................$930.57+        Trust Company of New York.
     Redemption and Sponsor's                   Trustee's Annual Fee:  Monthly 
       Repurchase Price                          plan $1.05 per $1,000; semi-
       per Unit ..................$884.98+       annual plan $.60 per $1,000;
                                         +++     and annual plan is $.35 per
                                         ++++    $1,000.
     Excess of Secondary Market                 Evaluator: Kenny S&P Evaluation
       Public Offering Price                     Services. 
       over Redemption and                      Evaluator's Fee for Each
       Sponsor's Repurchase                      Evaluation:  Minimum of $15
       Price per Unit ............$45.60++++     plus $.25 per each issue of
     Difference between Public                   Bonds in excess of 50 issues
       Offering Price per Unit                   (treating separate maturities
       and Principal Amount per                  as separate issues).
       Unit Premium/(Discount) ...$43.07        Sponsor:  Bear, Stearns & Co.
     Evaluation Time:  4:00 p.m.                  Inc.
       New York Time.                           Sponsor's Annual Fee:  Maximum 
                                                 of $.25 per $1,000 principal
                                                 amount of Bonds (see "Trust
                                                 Expenses and Charges" in
                                                 Part B of this Prospectus).

        PER UNIT INFORMATION BASED UPON INTEREST DISTRIBUTION PLAN ELECTED

                                            Monthly   Semi-Annual   Annual
                                            Option      Option      Option


    Gross annual interest income# ......... $75.52      $75.52      $75.52
    Less estimated annual fees and
      expenses ............................   1.91        1.35        1.10
    Estimated net annual interest           ______      ______      ______
      income (cash)# ...................... $73.61      $74.17      $74.42
    Estimated interest distribution# ......   6.13       37.08       74.42
    Estimated daily interest accrual# .....  .2044       .2060       .2067
    Estimated current return#++ ...........  7.91%       7.97%       8.00%
    Estimated long term return++ ..........  5.71%       5.77%       5.80%
    Record dates .......................... 1st of      Dec. 1 and   Dec. 1
                                            each month  June 1
    Interest distribution dates ........... 15th of     Dec. 15 and  Dec. 15
                                            each month  June 15

        

    <PAGE>
       *  The Date of Deposit is the date on which the Trust Agreement was
          signed and the deposit of the Bonds with the Trustee made. 

      **  For information regarding offering price per unit and applicable
          sales charge under the Total Reinvestment Plan, see "Total
          Reinvestment Plan" in Part B of this Prospectus. 

     ***  The Trustee maintains its corporate trust office at 770 Broadway,
          New York, New York 10003 (tel. no.:  1-800-428-8890).  For
          information regarding redemption by the Trustee, see "Trustee
          Redemption" in Part B of this Prospectus.
       
       +  Plus accrued interest to expected date of settlement (approximately
          five business days after purchase) of $14.16 monthly, $20.12 semi-
          annually and $58.49 annually. 
        
      ++  The estimated current return and estimated long term return are
          increased for transactions entitled to a discount (see "Employee
          Discounts" in Part B of this Prospectus), and are higher under the
          semi-annual and annual options due to lower Trustee's fees and
          expenses.

     +++  Based solely upon the bid side evaluation of the underlying Bonds
          (including, where applicable, undistributed cash in the principal
          account).  Upon tender for redemption, the price to be paid will be
          calculated as described under "Trustee Redemption" in Part B of this
          Prospectus. 

    ++++  See "Comparison of Public Offering Price, Sponsor's Repurchase Price
          and Redemption Price" in Part B of this Prospectus. 

       #  Does not include income accrual from original issue discount bonds,
          if any.

    <PAGE>
       
                          INFORMATION REGARDING THE TRUST
                                AS OF JUNE 30, 1994


    DESCRIPTION OF PORTFOLIO

          The portfolio of the Trust consists of 15 issues representing
    obligations of issuers located in 11 states.  The Sponsor has not
    participated as a sole underwriter or manager, co-manager or member of an
    underwriting syndicate from which any of the initial aggregate principal
    amount of the Bonds were acquired.  None of the Bonds are obligations of
    state and local housing authorities; approximately 13% are hospital
    revenue bonds; approximately 11.2% are issued in connection with the
    financing of nuclear generating facilities; and approximately 7.8% are
    "mortgage subsidy" bonds.  All of the Bonds in the Trust are subject to
    redemption prior to their stated maturity dates pursuant to sinking fund
    or call provisions.  The Bonds may also be subject to other calls, which
    may be permitted or required by events which cannot be predicted (such as
    destruction, condemnation, termination of a contract, or receipt of excess
    or unanticipated revenues).  None of the Bonds are general obligation
    bonds.  Fifteen issues representing $3,550,000 of the principal amount of
    the Bonds are payable from the income of a specific project or authority
    and are not supported by the issuer's power to levy taxes.  The portfolio
    is divided for purpose of issue as follows:  Airport Facilities 3, Coal
    Power 1, Convention Center 1, Electric and Gas 1, Hospital 3, Housing 1,
    Industrial Development Revenue 1, Nuclear Power 1, Power 2 and Solid
    Waste 1.  For an explanation of the significance of these factors see "The
    Trust--Portfolio" in Part B of this Prospectus. 

          As of June 30, 1994, $750,000 (approximately 21.1% of the aggregate
    principal amount of the Bonds) were original issue discount bonds.  Of
    these original issue discount bonds, none are Zero Coupon Bonds. 
    Approximately 7.8% of the aggregate principal amount of the Bonds in the
    Trust were purchased at a "market" discount from par value at maturity,
    approximately 71.1% were purchased at a premium and none were purchased at
    par.  For an explanation of the significance of these factors see
    "Discount and Zero Coupon Bonds" in Part B of this Prospectus.

          None of the Bonds in the Trust are subject to the federal individual
    alternative minimum tax under the Tax Reform Act of 1986.  See "Tax
    Status" in Part B of this Prospectus.
        
    <PAGE>
                       FINANCIAL AND STATISTICAL INFORMATION


    Selected data for each Unit outstanding for the periods listed below:

                                                                    Distribu-
                                                                    tions of
                                          Distributions of Interest Principal
                                         During the Period (per Unit) During
                             Net Asset*            Semi-              the
                  Units Out-   Value     Monthly   Annual   Annual   Period
    Period Ended   standing   Per Unit   Option    Option   Option  (Per Unit)

       
    June 30, 1992         4,000$1,021.83  $79.68   $80.32   $80.64  -0-  
    June 30, 1993         4,000 1,004.63   71.34    78.43    79.72 $25.50
    June 30, 1994         4,000   904.30   76.64    77.27    78.44  40.86

        

    *     Net Asset Value per Unit is calculated by dividing net assets as
          disclosed in the "Statement of Net Assets" by the number of Units
          outstanding as of the date of the Statement of Net Assets.  See
          Note 5 of Notes to Financial Statements for a description of the
          components of Net Assets.
<PAGE>

Independent Auditors' Report


The Sponsor, Trustee and Certificateholders
Municipal Securities Trust, Series 40:


We have audited the accompanying statement of net assets, including the
portfolio, of Municipal Securities Trust, Series 40 as of June 30, 1994,
and the related statements of operations, and changes in net assets for
each of the years in the three year period then ended.  These financial
statements are the responsibility of the Trustee (see note 2).  Our
responsibility is to express an opinion on these financial statements
based on our audits.

We conducted our audits in accordance with generally accepted auditing
standards.  Those standards require that we plan and perform the audit to
obtain reasonable assurance about whether the financial statements are
free of material misstatement.  An audit includes examining, on a test
basis, evidence supporting the amounts and disclosures in the financial
statements.  Our procedures included confirmation of securities owned
as of June 30, 1994, by correspondence with the Trustee.  An audit also
includes assessing the accounting principles used and significant
estimates made by management, as well as evaluating the overall
financial statement presentation.  We believe that our audits provide
a reasonable basis for our opinion.

In our opinion, the financial statements referred to above present
fairly, in all material respects, the financial position of Municipal
Securities Trust, Series 40 as of June 30, 1994, and the results of
its operations and the changes in its net assets for each of the years
in the three year period then ended, in conformity with generally
accepted accounting principles.




KPMG Peat Marwick LLP


New York, New York
September 15, 1994
<PAGE>



                MUNICIPAL SECURITIES TRUST, SERIES 40

                        Statement of Net Assets

                           June 30, 1994

Investments in marketable securities,
   at market value (cost  $3,581,195)                     $  3,539,869

Excess of other assets over total liabilities                   77,319
                                                           -----------

Net assets (4,000 units   of fractional undivided
   interest outstanding, $904.30 per unit)               $  3,617,188
                                                          ===========

See accompanying notes to financial statements.
<PAGE>
<TABLE> 
                        MUNICIPAL SECURITIES TRUST, SERIES 40

                              Statements of Operations
<CAPTION>
                                                      Years Ended June 30,
                                              ------------ --  ----------- -- -----------

                                                  1994            1993           1992
                                              ------------     -----------    -----------
<S>                                        <C>                 <C>            <C> 
Investment income - interest               $      314,196         319,558        327,586
                                              ------------     -----------    -----------

Expenses:
   Trustee's fees                                   5,082           5,204          5,135
   Evaluator's fees                                 1,124           1,066            945
   Sponsor's advisory fee                             975           1,000          1,000
                                              ------------     -----------    -----------

          Total expenses                            7,181           7,270          7,080
                                              ------------     -----------    -----------

          Investment income, net                  307,015         312,288        320,506
                                              ------------     -----------    -----------

Realized and unrealized gain (loss)
   on Investments:
     Net Realized gain (loss)
         on bonds sold or called                  (22,187)            566          -

Unrealized appreciation
  (depreciation)  for the year                   (214,923)         32,378        107,263
                                              ------------     -----------    -----------

          Net gain (loss) on investments         (237,110)         32,944        107,263
                                              ------------     -----------    -----------

          Net increase in net
            assets resulting
            from operations                $       69,905         345,232        427,769
                                              ============     ===========    ===========

See accompanying notes to financial statements.
</TABLE> 
<PAGE>
<TABLE> 
                        MUNICIPAL SECURITIES TRUST, SERIES 40

                         Statements of Changes in Net Assets
<CAPTION>
                                                       Years ended June 30,
                                            -----------  -- ----------- -- ------------
                                               1994            1993            1992
                                            -----------     -----------    ------------
<S>                                       <C>               <C>            <C> 
Operations:
   Investment income, net                 $    307,015         312,288         320,506
   Net realized gain (loss) on
     bonds sold or called                      (22,187)            566          -
   Unrealized appreciation
     (depreciation) for the year              (214,923)         32,378         107,263
                                            -----------     -----------    ------------

              Net increase in net
                assets resulting
                from operations                 69,905         345,232         427,769
                                            -----------     -----------    ------------

Distributions to certificateholders:
     Investment income                         307,782         312,033         319,521
     Principal                                 163,440         102,000          -
                                            -----------     -----------    ------------

              Total distributions              471,222         414,033         319,521
                                            -----------     -----------    ------------

              Total increase (decrease)       (401,317)        (68,801)        108,248

Net assets at beginning of year              4,018,505       4,087,306       3,979,058
                                            -----------     -----------    ------------

Net assets at end of year (including
   undistributed net investment
   income of  $77,287,   $81,915 and
   $81,660, respectively)                 $  3,617,188       4,018,505       4,087,306
                                            ===========     ===========    ============

See accompanying notes to financial statements.
</TABLE> 
<PAGE>

Notes to Financial Statements

June 30, 1994, 1993 and 1992


(1)  Organization and Financial and Statistical Information

Municipal Securities Trust, Series 40 (Trust) was organized on
December 15, 1988 by Bear, Stearns & Co. Inc. (Sponsor) under the
laws of the State of New York by a Trust Indenture and Agreement, and
is registered under the Investment Company Act of 1940.


(2)  Summary of Significant Accounting Policies

United States Trust Company of New York (Trustee) has custody of and
responsibility for the accounting records and financial statements of
the Trust and is responsible for establishing and maintaining a
system of internal control related thereto.

The Trustee is also responsible for all estimates of expenses and
accruals reflected in the Trust's financial statements.  The
accompanying financial statements have been adjusted to record the
unrealized appreciation (depreciation) of investments and to record
interest income and expenses on the accrual basis.

The discount on the zero-coupon bonds is accreted by the interest
method over the respective lives of the bonds.  The accretion of such
discount is included in interest income; however, it is not
distributed until realized in cash upon maturity or sale of the
respective bonds.

Investments are carried at market value which is determined by either
Standard & Poor's Corporation or Moody's Investors Service, Inc.
(Evaluator) as discussed in Footnotes to Portfolio.  The market value
of the investments is based upon the bid prices for the bonds at the
end of the period, except that the market value on the date of
deposit represents the cost to the Trust based on the offering prices
for investments at that date.  The difference between cost (including
accumulated accretion of original issue discount on zero-coupon
bonds) and market value is reflected as unrealized appreciation
(depreciation) of investments.  Securities transactions are recorded
on the trade date.  Realized gains (losses) from securities
transactions are determined on the basis of average cost of the
securities sold or redeemed.

(3)  Income Taxes

The Trust is not subject to Federal income taxes as provided for by
the Internal Revenue Code.

(4)  Trust Administration

The fees and expenses of the Trust are incurred and paid on the basis
set forth under "Trust Expenses and Charges" in Part B of this
Prospectus.

The Trust Indenture and Agreement provides for interest distributions
as often as monthly (depending upon the distribution plan elected by
the Certificateholders).

The Trust Indenture and Agreement further requires that principal
received from the disposition of bonds, other than those bonds sold
in connection with the redemption of units, be distributed to
Certificateholders.

See "Financial and Statistical Information" in Part A of this
Prospectus for the amounts of per unit distributions during the years
ended June 30, 1994, 1993 and 1992.

The Trust Indenture and Agreement also requires the Trust to redeem
units tendered.  No units have been redeemed since the inception of
the Trust.

(5)  Net Assets

At June 30, 1994, the net assets of the Trust represented the
interests of Certificateholders as follows:

Original cost to Certificateholders           $   4,063,540
Less initial gross underwriting commission         (199,113)

                                                   3,864,427

Accumulated cost of bonds sold or called           (283,232)
Net unrealized depreciation                         (41,326)
Undistributed net investment income                  77,287
Undistributed proceeds from bonds sold or called         32

                    Total                      $  3,617,188


The original cost to Certificateholders, less the initial gross
underwriting commission, represents the aggregate initial public
offering price net of the applicable sales charge on 4,000 units of
fractional undivided interest of the Trust as of the date of
deposit.
<PAGE>
<TABLE> 

MUNICIPAL SECURITIES TRUST,  SERIES 40
Portfolio
June 30, 1994

<CAPTION>

PORT-   Aggregate                                      Coupon Rate/   Redemption Feature
FOLIO   Principal       Name of Issuer      Ratings    Date(s) of     S.F.--Sinking Fund         Market
No.       Amount      and Title of Bonds      (1)      Maturity(2)    Ref.--Refunding(2) (7)     Value(3)
- ----    ----------   ---------------------   ------    ------------   ----------------------     -----------
<S>   <C>            <C>                     <C>       <C>            <C>                     <C> 
  1   $    100,000   Maricopa Cnty. Ariz       A+      9.100%         No Sinking Fund         $      105,389
                     Indus.  Dev. Auth                 7/01/2001      7/01/95 @ 102 Ref.
                     (Mercy Hlth. Sys.)
                     Hlth. Fac. Rev. Bonds
                     Series 1985D

  2        250,000   Reg. Arpts. Imprvnt.     BA1*     11.250         11/01/06 @ 100 S.F.            274,280
                     Corp. Facs. Sublease              11/01/2025     11/01/95 @ 103 Ref.
                     Rev. Bonds Western
                     Airlines Inc. (L.A.
                     Intrnl Arpt.) 1985

  3        250,000   Palm Beach Fla. Solid    AAA      10.000         12/01/99 @ 100 S.F.            273,707
                     Waste Auth. Rfndg. &              12/01/2005     12/01/95 @102 Ref.
                     Imprvmt. Rev. Bonds
                     Series 1985 (5)

  4        250,000   Monroe Cnty. Ga. Dev.    A2*      10.500         No Sinking Fund                262,360
                     Auth. Poll. Cntrl.                12/01/2014     12/01/94 @ 102 Ref.
                     Rev. Bonds (Gulf Pwr.
                     Co. Plant Scherer
                     Prjt.) First Series
                     1984

  5        250,000   Ill. Hlth. Facs.         AAA*     10.000         4/01/97 @ 100 S.F.             264,943
                     Auth. Rev. Rfndg.                 4/01/2015      4/01/95 @ 102 Ref.
                     Bonds (Lutheran
                     Institute of Human,
                     Ecology) Series 1985A
                     (5)

  6        280,000   Ill. Hsg Dev. Auth.       A+      5.600          No Sinking Fund                253,341
                     Hsg. Dev. Bonds                   7/01/2009      1/01/95 @ 102  Ref.
                     Series 1972A

  7        250,000   Detroit Mi. Cnvtn.       AAA      9.000          9/30/03 @ 100 S.F.             260,949
                     Fac. Ltd. Tax Rev.                9/30/2010      9/30/94 @ 103 Ref.
                     Bonds (Cobo Hall
                     Expansion Prjt.)
                     Series 1985 (5)

  8        105,000   Univ. Dev. Auth.          A+      9.250          5/01/01 @ 100 S.F.             116,348
                     (Mo.) Pwr. Plant                  5/01/2005      5/01/96 @ 103 Ref.
                     Equip.   Leasehold
                     Rev. Bonds 1985
                     Series

  9        400,000   N.C. Eastern Muni.       AAA*     4.500          7/01/20 @ 100 S.F.             306,460
                     Pwr. Agency Pwr. Sys.             1/01/2024      01/01/22 @ 100 Ref.
                     Rev. Rfndg. Bonds
                     Series 1987A (5)

 10        200,000   Tulsa Ok. Muni.         BAA2*     9.375          6/01/03 @ 100 S.F.             213,674
                     Arpt. Trust Rev.                  6/01/2004      12/01/95 @ 102 Ref.
                     Indus. Dev. Rev.
                     Bonds-American
                     Airlines Series 1985

 11        250,000   Philadelphia Penn        BBB      9.000          6/15/06 @ 100 S.F.             266,678
                     Arpt. Rev. Bonds                  6/15/2015      6/15/95 @ 103 Ref.
                     Series 1985
                     (Philadelphia Arpt.
                     Sys.) Series 1984

 12        250,000   York Cnty. Penn.         A2*      10.375         No Sinking Fund                260,908
                     Indus. Dev. Auth.                 11/01/2012     11/01/94 @ 102 Ref.
                     Poll. Cntrl. Rev.
                     Bonds (Pub. Serv.
                     Elec. & Gas Co. Peach
                     Botton Prjt.) 1984
                     Series A

 13        250,000   Baytown Tex. Indus.       AA      10.625         11/01/95 @ 100 S.F.            263,680
                     Dev. Corp.  Indus.                11/01/2009     11/01/94 @ 103 Ref.
                     Dev. Rev. Bonds
                     Walmart Stores Inc.

 14        115,000   Richardson Tex. Hosp.     A+      10.000         12/01/00 @ 100 S.F.            125,654
                     Auth.  Hosp. Rev.                 12/01/2009     12/01/95 @ 102 Ref.
                     Rfndg. Bonds
                     (Richardson Med.
                     Cntr. BB Owen Mem.
                     Hosp.) (HIBI),  1985
                     (5)

 15        350,000   Intermountain Pwr.       AA*      5.000          7/01/12 @ 100 S.F.             291,498
                     Agency. Utah Pwr.                 7/01/2016      7/01/96 @ 100 Ref.
                     Supply Spec. Oblig.
                     First Crossover
                     Series 1986
        ----------                                                                               -----------

      $  3,550,000                                                                            $    3,539,869
        ==========                                                                               ===========

See accompanying footnotes to portfolio and notes to financial statements.
</TABLE> 

<PAGE>
Footnotes to Portfolio

June 30, 1994

(1)
All ratings are by Standard & Poor's Corporation, except for those
identified by an asterisk (*) which are by Moody's Investors Service,
Inc.  A brief description of the ratings symbols and their meanings
is set forth under "Description of Bond Ratings" in Part B of this
Prospectus.

(2)
See "The Trust - Portfolio" in Part B of this Prospectus for an
explanation of redemption features.  See "Tax Status" in Part B of
this Prospectus for a statement of the Federal tax consequences to a
Certificateholder upon the sale, redemption or maturity of a bond.

(3)
At June 30, 1994, the net unrealized depreciation of all the bonds
was comprised of the following:

Gross unrealized appreciation          $   142,447
Gross unrealized depreciation             (183,773)

Net unrealized depreciation            $   (41,326)

(4)
The annual interest income (excluding accretion of original issue
discount on zero-coupon bonds), based on bonds held at June 30, 1994,
to the Trust is $302,118.

(5)
The bonds have been prerefunded and will be redeemed at the next
refunding call date.

(6)
Bonds sold or called after June 30, 1994 are noted in a footnote
"Changes in Trust Portfolio" under "Description of Portfolio" in Part
A of this Prospectus.

(7)
The Bonds may also be subject to other calls, which may be permitted
or required by events which cannot be predicted (such as destruction,
condemnation, termination of a contract, or receipt of excess or
unanticipated revenues).
<PAGE>




                 Note:  Part A of this Prospectus May Not Be     
                        Distributed Unless Accompanied by Part B.


                            MUNICIPAL SECURITIES TRUST

                               68TH DISCOUNT SERIES
                              (MULTIPLIER PORTFOLIO)

    __________________________________________________________________

       
               The Trust is a unit investment trust designated 68th Discount
    Series ("Municipal Discount Trust") with an underlying portfolio of long-
    term tax-exempt bonds and was formed to preserve capital and to provide
    interest income (including, where applicable, earned original issue
    discount) which, in the opinions of bond counsel to the respective
    issuers, is, with certain exceptions, currently exempt from regular
    federal income tax under existing law but may be subject to state and
    local taxes.  (See "Tax Status" and "The Trust--Portfolio" in Part B of
    this Prospectus.)  The Sponsor is Bear, Stearns & Co. Inc.  The value of
    the Units of the Trust will fluctuate with the value of the bonds. 
    Minimum purchase:  1 Unit.

    __________________________________________________________________


               This Prospectus consists of two parts.  Part A contains the
    Summary of Essential Information as of June 30, 1994 (the "Evaluation
    Date"), a summary of certain specific information regarding the Trust and
    audited financial statements of the Trust, including the related
    portfolio, as of the Evaluation Date.  Part B of this Prospectus contains
    a general summary of the Trust. 

                    Investors should retain both parts of this
                         Prospectus for future reference.

    __________________________________________________________________


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

                     Prospectus Part A Dated October 28, 1994

        
    <PAGE>

       
               THE TRUST.  The Trust is a unit investment trust formed to
    preserve capital and to provide interest income (including, where
    applicable, earned original issue discount) which, in the opinions of bond
    counsel to the respective issuers, is, with certain exceptions, currently
    exempt from regular federal income tax under existing law through
    investment in a fixed, diversified portfolio of long-term bonds issued by
    or on behalf of states, municipalities and public authorities (the
    "Bonds").  Although the Supreme Court has determined that Congress has the
    authority to subject interest on bonds such as the Bonds in the Trust to
    regular federal income taxation, existing law excludes such interest from
    regular federal income tax.  Such interest income may, however, be subject
    to the federal corporate alternative minimum tax and to state and local
    taxes.  (See "Description of Portfolio" in this Part A for a description
    of those Bonds which pay interest income subject to the federal individual
    alternative minimum tax.  See also "Tax Status" in Part B of this
    Prospectus.)  The Bonds were acquired at prices which resulted in the
    portfolio as a whole being purchased at a deep discount from par value. 
    The portfolio may also include bonds issued at a substantial original
    issue discount some of which may be "Zero Coupon Bonds", which are
    original issue discount bonds that provide for payment at maturity at par
    value, but do not provide for the payment of current interest.  Some of
    the Bonds in the portfolio may have been purchased at an aggregate premium
    over par.  Some of the Bonds in the Trust have been issued with optional
    refunding or refinancing provisions ("Refunded Bonds") whereby the issuer
    of the Bond has the right to call such Bond prior to its stated maturity
    date (and other than pursuant to sinking fund provisions) and to issue new
    bonds ("Refunding Bonds") in order to finance the redemption.  Issuers
    typically utilize refunding calls in order to take advantage of lower
    interest rates in the marketplace.  Some of these Refunded Bonds may be
    called for redemption pursuant to pre-refunding provisions ("Pre-Refunded
    Bonds") whereby the proceeds from the issue of the Refunding Bonds are
    typically invested in government securities in escrow for the benefit of
    the holders of the Pre-Refunded Bonds until the refunding call date. 
    Usually, Pre-Refunded Bonds will bear a triple-A rating because of this
    escrow.  The issuers of Pre-Refunded Bonds must call such Bonds on their
    refunding call date.  Therefore, as of such date, the Trust will receive
    the call price for such bonds but will cease receiving interest income
    with respect to them.  For a list of those Bonds which are Pre-Refunded
    Bonds as of the Evaluation Date, if any, see "Notes to Financial
    Statements" in this Part A.  All of the Bonds in the Trust were rated "A"
    or better by Standard & Poor's Corporation or Moody's Investors Service,
    Inc. at the time originally deposited in the Trust.  For a discussion of
    the significance of such ratings see "Description of Bond Ratings" in
    Part B of this Prospectus and for a list of ratings on the Evaluation Date
    see the "Portfolio".  The payment of interest and preservation of capital
    are, of course, dependent upon the continuing ability of the issuers of
    the Bonds to meet their obligations.  There can be no assurance that the
    Trust's objectives will be achieved.  Investment in the Trust should be
    made with an understanding of the risks which an investment in long-term
    fixed rate obligations may entail, including the risk that the value of
    the underlying portfolio will decline with increases in interest rates,
    and that the value of Zero Coupon Bonds is subject to greater fluctuations
    than coupon bonds in response to changes in interest rates.  Each Unit in
    the Trust represents a 1/11988th undivided interest in the principal and
    net income of the Trust.  The principal amount of Bonds deposited in the
    Trust per Unit is reflected in the Summary of Essential Information.  (See
    "The Trust--Organization" in Part B of this Prospectus.)  The Units being
    offered hereby are issued and outstanding Units which have been purchased
    by the Sponsor in the secondary market. 

               PUBLIC OFFERING PRICE.  The secondary market Public Offering
    Price of each Unit is equal to the aggregate bid price of the Bonds in the
    Trust divided by the number of Units outstanding, plus a sales charge of
    5.5% of the Public Offering Price, which is the same as 5.820% of the net
    amount invested in Bonds per Unit.  In addition, accrued interest to
    expected date of settlement including earned original issue discount is
    added to the Public Offering Price.  If Units had been purchased on the
    Evaluation Date, the Public Offering Price per Unit would have been
    $530.17 plus accrued interest of $8.68 under the monthly distribution
    plan, $12.43 under the semi-annual distribution plan and $35.32 under the
    annual distribution plan, for a total of $538.85, $542.60 and $565.49,
    respectively.  The Public Offering Price per Unit can vary on a daily
    basis in accordance with fluctuations in the aggregate bid price of the
    Bonds.  (See the "Summary of Essential Information" and "Public Offering--
    Offering Price" in Part B of this Prospectus.)

               ESTIMATED LONG TERM RETURN AND ESTIMATED CURRENT RETURN.  Units
    of each Trust are offered to investors on a "dollar price" basis (using
    the computation method previously described under "Public Offering Price")
    as distinguished from a "yield price" basis often used in offerings of tax
    exempt bonds (involving the lesser of the yield as computed to maturity of
    bonds or to an earlier redemption date).  Since they are offered on a
    dollar price basis, the rate of return on an investment in Units of each
    Trust is measured in terms of "Estimated Current Return" and "Estimated
    Long Term Return".

               Estimated Long Term Return is calculated by:  (1) computing the
    yield to maturity or to an earlier call date (whichever results in a lower
    yield) for each Bond in the Trust's portfolio in accordance with accepted
    bond practices, which practices take into account not only the interest
    payable on the Bond but also the amortization of premiums or accretion of
    discounts, if any; (2) calculating the average of the yields for the Bonds
    in the Trust's portfolio by weighing each Bond's yield by the market value
    of the Bond and by the amount of time remaining to the date to which the
    Bond is priced (thus creating an average yield for the portfolio of the
    Trust); and (3) reducing the average yield for the portfolio of the Trust
    in order to reflect estimated fees and expenses of the Trust and the
    maximum sales charge paid by investors.  The resulting Estimated Long Term
    Return represents a measure of the return to investors earned over the
    estimated life of the Trust.  (For the Estimated Long Term Return to
    Certificateholders under the monthly, semi-annual and annual distribution
    plans, see "Summary of Essential Information".)

               Estimated Current Return is a measure of the Trust's cash flow. 
    Estimated Current Return is computed by dividing the Estimated Net Annual
    Interest Income per Unit by the Public Offering Price per Unit.  In
    contrast to the Estimated Long Term Return, the Estimated Current Return
    does not take into account the amortization of premium or accretion of
    discount, if any, on the Bonds in the portfolio of the Trust.  Moreover,
    because interest rates on Bonds purchased at a premium are generally
    higher than current interest rates on newly issued bonds of a similar type
    with comparable rating, the Estimated Current Return per Unit may be
    affected adversely if such Bonds are redeemed prior to their maturity.  

               The Estimated Net Annual Interest Income per Unit of the Trust
    will vary with changes in the fees and expenses of the Trustee and the
    Evaluator applicable to the Trust and with the redemption, maturity, sale
    or other disposition of the Bonds in the Trust.  The Public Offering Price
    will vary with changes in the bid prices of the Bonds.  Therefore, there
    is no assurance that the present Estimated Current Return or Estimated
    Long Term Return will be realized in the future.  (For the Estimated
    Current Return to Certificateholders under the monthly, semi-annual and
    annual distribution plans, see "Summary of Essential Information".  See
    "Estimated Long Term Return and Estimated Current Return" in Part B of
    this Prospectus.)

               A schedule of cash flow projections is available from the
    Sponsor upon request. 

               DISTRIBUTIONS.  Distributions of interest income, less
    expenses, will be made by the Trust either monthly, semi-annually or
    annually depending upon the plan of distribution applicable to the Unit
    purchased.  A purchaser of a Unit in the secondary market will initially
    receive distributions in accordance with the plan selected by the prior
    owner of such Unit and may thereafter change the plan as provided under
    "Interest and Principal Distributions" in Part B of the Prospectus. 
    Distributions of principal, if any, will be made semi-annually on June 15
    and December 15 of each year.  (See "Rights of Certificateholders--
    Interest and Principal Distributions" in Part B of this Prospectus.  For
    estimated monthly, semi-annual and annual interest distributions, see
    "Summary of Essential Information.")  

               MARKET FOR UNITS.  The Sponsor, although not obligated to do
    so, intends to maintain a market for the Units at prices based upon the
    aggregate bid price of the Bonds in the portfolio of the Trust.  The
    secondary market repurchase price is based on the aggregate bid price of
    the Bonds in the Trust portfolio, and the reoffer price is based on the
    aggregate bid price of the Bonds plus a sales charge of 5.5% (5.820% of
    the net amount invested) plus net accrued interest.  If such a market is
    not maintained, a Certificateholder will be able to redeem his Units with
    the Trustee at a price also based upon the aggregate bid price of the
    Bonds.  (See "Sponsor Repurchase" and "Public Offering--Offering Price" in
    Part B of this Prospectus.)

               TOTAL REINVESTMENT PLAN.  Certificateholders under the semi-
    annual and annual plans of distribution have the opportunity to have their
    interest distributions and principal distributions, if any, reinvested in
    available series of "Municipal Securities Trust."  (See "Total
    Reinvestment Plan" and for residents of Texas, see "Total Reinvestment
    Plan for Texas Residents" in Part B of this Prospectus.)  The Plan is not
    designed to be a complete investment program.

        
    <PAGE>
                            MUNICIPAL SECURITIES TRUST
                               68TH DISCOUNT SERIES
       
               SUMMARY OF ESSENTIAL INFORMATION AS OF JUNE 30, 1994

     Date of Deposit:  December 15, 1988        Minimum Principal Distribution:
     Principal Amount of Bonds ...$5,755,000     $1.00 per Unit.
     Number of Units .............11,988        Weighted Average Life
     Fractional Undivided Inter-                 to Maturity:  17 Years.
       est in Trust per Unit .....1/11988       Minimum Value of Trust:
     Principal Amount of                         Trust may be terminated if
       Bonds per Unit ............$480.06        value of Trust is less than
     Secondary Market Public                     $4,800,000 in principal
       Offering Price**                          amount of Bonds.
       Aggregate Bid Price                      Mandatory Termination Date:
         of Bonds in Trust .......$6,006,152+++  The earlier of December 31,
       Divided by 11,988 Units ...$501.01        2037 or the disposition of
       Plus Sales Charge of 5.5%                 the last Bond in the Trust.
         of Public Offering Price $29.16        Trustee***:  United States
       Public Offering Price                      Trust Company of New York.
         per Unit ................$530.17+      Trustee's Annual Fee:  Monthly 
     Redemption and Sponsor's                    plan $.84 per $1,000; semi-
       Repurchase Price                          annual plan $.38 per $1,000;
       per Unit ..................$501.01+       and annual plan is $.30 per
                                         +++     $1,000.
                                         ++++   Evaluator: Kenny S&P Evaluation
     Excess of Secondary Market                  Services. 
       Public Offering Price                    Evaluator's Fee for Each
       over Redemption and                       Evaluation:  Minimum of $15
       Sponsor's Repurchase                      plus $.25 per each issue of
       Price per Unit ............$29.16++++     Bonds in excess of 50 issues
     Difference between Public                   (treating separate maturities
       Offering Price per Unit                   as separate issues).
       and Principal Amount per                 Sponsor:  Bear, Stearns & Co.
       Unit Premium/(Discount) ...$50.11         Inc.
     Evaluation Time:  4:00 p.m.                Sponsor's Annual Fee:  Maximum
       New York Time.                            of $.25 per $1,000 principal
                                                 amount of Bonds (see "Trust
                                                 Expenses and Charges" in
                                                 Part B of this Prospectus).

        PER UNIT INFORMATION BASED UPON INTEREST DISTRIBUTION PLAN ELECTED

                                            Monthly   Semi-Annual   Annual
                                            Option      Option      Option


    Gross annual interest income# ......... $46.66      $46.66      $46.66
    Less estimated annual fees and
      expenses ............................   1.12         .76         .71
    Estimated net annual interest           ______      ______      ______
      income (cash)# ...................... $45.54      $45.90      $45.95
    Estimated interest distribution# ......   3.79       22.95       45.95
    Estimated daily interest accrual# .....  .1265       .1275       .1276
    Estimated current return#++ ...........  8.59%       8.66%       8.67%
    Estimated long term return++ ........... 5.16%       5.23%       5.24%
    Record dates .......................... 1st of      Dec. 1 and   Dec. 1
                                            each month  June 1
    Interest distribution dates ........... 15th of     Dec. 15 and  Dec. 15
                                            each month  June 15

        
    <PAGE>
       *  The Date of Deposit is the date on which the Trust Agreement was
          signed and the deposit of the Bonds with the Trustee made. 

      **  For information regarding offering price per unit and applicable
          sales charge under the Total Reinvestment Plan, see "Total
          Reinvestment Plan" in Part B of this Prospectus. 

     ***  The Trustee maintains its corporate trust office at 770 Broadway,
          New York, New York 10003 (tel. no.:  1-800-428-8890).  For
          information regarding redemption by the Trustee, see "Trustee
          Redemption" in Part B of this Prospectus.
       
       +  Plus accrued interest to expected date of settlement (approximately
          five business days after purchase) of $8.68 monthly, $12.43 semi-
          annually and $35.32 annually. 
        
      ++  The estimated current return and estimated long term return are
          increased for transactions entitled to a discount (see "Employee
          Discounts" in Part B of this Prospectus), and are higher under the
          semi-annual and annual options due to lower Trustee's fees and
          expenses. 

     +++  Based solely upon the bid side evaluation of the underlying Bonds
          (including, where applicable, undistributed cash in the principal
          account).  Upon tender for redemption, the price to be paid will be
          calculated as described under "Trustee Redemption" in Part B of this
          Prospectus. 

    ++++  See "Comparison of Public Offering Price, Sponsor's Repurchase Price
          and Redemption Price" in Part B of this Prospectus. 

       #  Does not include income accrual from original issue discount bonds,
          if any.

    <PAGE>
       

                          INFORMATION REGARDING THE TRUST
                                AS OF JUNE 30, 1994


    DESCRIPTION OF PORTFOLIO*

          The portfolio of the Trust consists of 12 issues representing
    obligations of issuers located in 10 states.  The Sponsor has not
    participated as a sole underwriter or manager, co-manager or member of an
    underwriting syndicate from which any of the initial aggregate principal
    amount of the Bonds were acquired.  None of the Bonds are obligations of
    state and local housing authorities; approximately 8.6% are hospital
    revenue bonds; approximately 5.2% are issued in connection with the
    financing of nuclear generating facilities; and none are "mortgage
    subsidy" bonds.  All of the Bonds in the Trust are subject to redemption
    prior to their stated maturity dates pursuant to sinking fund or call
    provisions.  The Bonds may also be subject to other calls, which may be
    permitted or required by events which cannot be predicted (such as
    destruction, condemnation, termination of a contract, or receipt of excess
    or unanticipated revenues).  None of the Bonds are general obligation
    bonds.  Twelve issues representing $5,755,000 of the principal amount of
    the Bonds are payable from the income of a specific project or authority
    and are not supported by the issuer's power to levy taxes.  The portfolio
    is divided for purpose of issue as follows:  Airport Facilities 4,
    Convention Center 1, Electric and Gas 1, Hospital 1, Industrial
    Development Revenue 1, Nuclear Power 1, Power 2 and Solid Waste 1.  For an
    explanation of the significance of these factors see "The Trust--
    Portfolio" in Part B of this Prospectus. 
    *     Changes in the Trust Portfolio:  From July 1, 1994 to September 23,
          1994, 164 Units have been redeemed from the Trust.
          As of June 30, 1994, $300,000 (approximately 5.2% of the aggregate
    principal amount of the Bonds) were original issue discount bonds.  Of
    these original issue discount bonds, none were Zero Coupon Bonds.  None of
    the aggregate principal amount of the Bonds in the Trust were purchased at
    a "market" discount from par value at maturity, approximately 94.8% were
    purchased at a premium and none were purchased at par.  For an explanation
    of the significance of these factors see "Discount and Zero Coupon Bonds"
    in Part B of this Prospectus. 

          None of the Bonds in the Trust are subject to the federal individual
    alternative minimum tax under the Tax Reform Act of 1986.  See "Tax
    Status" in Part B of this Prospectus.
        
    <PAGE>
                       FINANCIAL AND STATISTICAL INFORMATION


    Selected data for each Unit outstanding for the periods listed below:

                                                                    Distribu-
                                                                    tions of
                                          Distributions of Interest Principal
                                         During the Period (per Unit) During
                             Net Asset*            Semi-              the
                  Units Out-   Value     Monthly   Annual   Annual   Period
    Period Ended   standing   Per Unit   Option    Option   Option  (Per Unit)

       
    June 30, 1992        12,000  $597.88  $48.96   $49.42   $49.50  -0-  
    June 30, 1993        11,995   588.13   48.96    49.42    49.50  -0-  
    June 30, 1994        11,988   515.52   45.55    46.09    47.98 $45.10

        


    *     Net Asset Value per Unit is calculated by dividing net assets as
          disclosed in the "Statement of Net Assets" by the number of Units
          outstanding as of the date of the Statement of Net Assets.  See
          Note 5 of Notes to Financial Statements for a description of the
          components of Net Assets.
<PAGE>

Independent Auditors' Report


The Sponsor, Trustee and Certificateholders
Municipal Securities Trust, 68th Discount Series:


We have audited the accompanying statement of net assets, including the
portfolio, of Municipal Securities Trust, 68th Discount Series as of
June 30, 1994, and the related statements of operations, and changes
in net assets for each of the years in the three year period then
ended.  These financial statements are the responsibility of the
Trustee (see note 2).  Our responsibility is to express an opinion on
these financial statements based on our audits.

We conducted our audits in accordance with generally accepted auditing
standards.  Those standards require that we plan and perform the audit to
obtain reasonable assurance about whether the financial statements are
free of material misstatement.  An audit includes examining, on a test
basis, evidence supporting the amounts and disclosures in the financial
statements.  Our procedures included confirmation of securities owned
as of June 30, 1994, by correspondence with the Trustee.  An audit also
includes assessing the accounting principles used and significant
estimates made by management, as well as evaluating the overall financial
statement presentation.  We believe that our audits provide a reasonable
basis for our opinion.

In our opinion, the financial statements referred to above present fairly,
in all material respects, the financial position of Municipal Securities
Trust, 68th Discount Series as of June 30, 1994, and the results of its
operations and the changes in its net assets for each of the years in
the three year period then ended, in conformity with generally accepted
accounting principles.




KPMG Peat Marwick LLP


New York, New York
September 15, 1994
<PAGE>

               MUNICIPAL SECURITIES TRUST, 68TH DISCOUNT SERIES

                            Statement of Net Assets

                                   June 30, 1994

Investments in marketable securities,
   at market value (cost $6,402,042)                      $     6,006,110

Excess of other assets over total liabilities                     173,896
                                                            --------------

Net assets (11,988 units   of fractional undivided
   interest outstanding,   $515.52 per    unit)           $     6,180,006
                                                            ==============

See accompanying notes to financial statements.
<PAGE>
<TABLE>


                       MUNICIPAL SECURITIES TRUST, 68TH DISCOUNT SERIES

                               Statements of Operations
<CAPTION>
                                                             Years ended June 30,
                                                   ----------- -- ----------- -- -----------
                                                      1994           1993           1992
                                                   -----------    -----------    -----------
<S>                                             <C>               <C>            <C>
Investment income - interest                     $    568,796        612,601        611,753
                                                   -----------    -----------    -----------

Expenses:
   Trustee's fees                                       6,917          7,329          7,040
   Evaluator's fees                                     3,356          3,199          2,836
   Sponsor's advisory fee                               2,125          2,125          2,125
                                                   -----------    -----------    -----------

          Total expenses                               12,398         12,653         12,001
                                                   -----------    -----------    -----------

           Investment income, net                     556,398        599,948        599,752
                                                   -----------    -----------    -----------

Realized and unrealized gain (loss)
   on investments:
    Net realized loss on bonds
    sold or called                                  (47,417)           -              -
  Unrealized appreciation
       (depreciation) for the year                  (286,643)       (126,041)        87,408
                                                   -----------    -----------    -----------

      Net gain (loss)
             on investments                         (334,060)       (126,041)        87,408
                                                   -----------    -----------    -----------

           Net increase in net
             assets resulting
             from operations                     $    222,338        473,907        687,160
                                                   ===========    ===========    ===========

See accompanying notes to financial statements.
</TABLE>
<PAGE>

<TABLE>
                  MUNICIPAL SECURITIES TRUST, 68TH DISCOUNT SERIES

                          Statements of Changes in Net Assets
<CAPTION>
                                                         Years ended June 30,
                                             ------------ -- ------------ -- --------------
                                                 1994            1993             1992
                                             ------------    ------------    --------------
<S>                                        <C>              <C>              <C>
Operations:
   Investment income, net                  $     556,398         599,948           599,752
   Net realized loss
    on bonds sold or called                      (47,417)         -                -
   Unrealized appreciation
     (depreciation) for the year                (286,643)       (126,041)           87,408
                                             ------------    ------------    --------------

                 Net increase in net
                   assets resulting
                   from operations               222,338         473,907           687,160
                                             ------------    ------------    --------------

Distributions:
   To certificateholders:
     Investment income                           552,268         590,884           590,632
     Principal                                   540,916          -                -

Redemptions:
     Interest                                        209              58           -
     Principal                                     3,591           2,865           -
                                             ------------    ------------    --------------

               Total distributions
               and redemptions                 1,096,984         593,807           590,632
                                             ------------    ------------    --------------

                 Total increase (decrease)      (874,646)       (119,900)           96,528

Net assets at beginning of year                7,054,652       7,174,552         7,078,024
                                             ------------    ------------    --------------

Net assets at end of year (including
   undistributed net investment
   income of   $173,854,  $214,537,
   $205,531 respectively)                  $   6,180,006       7,054,652         7,174,552
                                             ============    ============    ==============

See accompanying notes to financial statements.
</TABLE>

<PAGE>
Notes to Financial Statements

June 30, 1994, 1993 and 1992


(1) Organization and Financial and Statistical Information

Municipal Securities Trust, 68th Discount Series (Trust) was
organized on December 15, 1988 by Bear, Stearns & Co. Inc. (Sponsor)
under the laws of the State of New York by a Trust Indenture and
Agreement, and is registered under the Investment Company Act
of 1940.


(2)   Summary of Significant Accounting Policies

United States Trust Company of New York (Trustee) has custody of and
responsibility for the accounting records and financial statements of
the Trust and is responsible for establishing and maintaining a
system of internal control related thereto.

The Trustee is also responsible for all estimates of expenses and
accruals reflected in the Trust's financial statements.  The
accompanying financial statements have been adjusted to record the
unrealized appreciation (depreciation) of investments and to record
interest income and expenses on the accrual basis.

Investments are carried at market value which is determined by either
Standard & Poor's Corporation or Moody's Investor Service
Inc.,(Evaluator) as discussed in the footnotes to the portfolio. The
market value of investments is based upon the bid prices for the
bonds at the end of the period, except that the market value on the
date of deposit represents the cost to the Trust based on the
offering prices for investments at that date.  The difference between
cost and market value is reflected as unrealized appreciation
(depreciation) of investments.  Securities transactions are recorded
on the trade date.  Realized gains (losses) from securities
transactions are determined on the basis of average cost of the
securities sold or redeemed.

(3) Income Taxes

The Trust is not subject to Federal income taxes as provided for by
the Internal Revenue Code.


(4)   Trust Administration

The fees and expenses of the Trust are incurred and paid on the basis
set forth under "Trust Expenses and Charges" in Part B of this
Prospectus.

The Trust Indenture and Agreement provides for interest distributions
as often as monthly (depending upon the distribution plan elected by
the Certificateholders).

The Trust Indenture and Agreement further requires that principal
received from the disposition of bonds, other than those bonds sold
in connection with the redemption of units, be distributed to
Certificateholders.

The Trust Indenture and Agreement also requires the Trust to redeem
units tendered.  7 units were redeemed by the trust during the year
ended June 30, 1994. 5 and 0 units were redeemed during the years
ended June 30, 1993 and 1992.

See "Financial and Statistical Information" in Part A of this
Prospectus for the amounts of per unit distributions during the years
ended June 30, 1994, 1993 and 1992.

(5)   Net Assets

At June 30, 1994, the net assets of the Trust represented the
interests of Certificateholders as follows:

        Original cost to Certificateholders            $   7,432,468
        Less initial gross underwriting commission         (408,786)

                                                           7,023,682

        Cost of securities sold or called                  (621,640)
        Net unrealized depreciation                        (395,932)
        Undistributed net investment income                  173,854
        Distributions in excess of
        proceeds from bonds sold or called                       42

                    Total                                $6,180,006


The original cost to Certificateholders, less the initial gross
underwriting commission, represents the aggregate initial public
offering price net of the applicable sales charge on 12,000 units
of fractional undivided interest of the Trust as of the date of
deposit.

<PAGE>
<TABLE>


MUNICIPAL SECURITIES TRUST, 68TH DISCOUNT SERIES
Portfolio
June 30, 1994

<CAPTION>
Port-  Aggregate                                       Coupon Rate/   Redemption Feature
folio  Principal    Name of Issuer          Ratings    Date(s) of     S.F.--Sinking Fund        Market
No.    Amount       and Title of Bonds        (1)      Maturity(2)    Ref.--Refunding(2)(7)     Value(3)
- --     ---------    ---------------------   -------    ------------   ---------------------     ------------
<S>   <C>           <C>                     <C>        <C>            <C>                    <C>
1     $  500,000    Reg. Arpts. Imprvmt.     BA1*      11.250%        11/01/06 @ 100 S.F.    $       548,560
                    Corp. Facs. Sublease               11/01/2025     11/01/95 @ 103 Ref.
                    Rev. Bonds 1985
                    Issues Western Air
                    Lines Inc. (L.A.
                    Intrntl. Arpt.)

2        500,000    Denver Colo. Cty. &      BAA*      8.875          8/01/12 @ 100 S.F.             509,260
                    Cnty. Arpt. Rev.                   8/01/2015      8/01/94 @ 101.5 Ref.
                    Bonds

3        500,000    Palm Beach Fla. Solid     AAA      10.000         12/01/99 @ 100 S.F.            547,415
                    Waste Auth. Rfndg. &               12/01/2005     12/01/95 @ 102 Ref.
                    Imprvmt. Rev. Bonds
                    Series 1985 (5)

4        500,000    St. Lucie Fla. Pool.      A+       11.000         No Sinking Fund                524,475
                    Cntrl. Rev. Bonds                  10/01/2019     10/01/94 @ 103 Ref.
                    (Fla. Pwr. & Lt. Co.
                    Prjt.) Series 1984

5        455,000    Monroe Cnty. Ga. Dev.     A2*      10.500         No Sinking Fund                477,495
                    Auth. Poll. Cntrl.                 12/01/2014     12/01/94 @ 102 Ref.
                    Rev. Bonds (Gulf Pwr.
                    Co. Plant Scherer
                    Prjt.) First Series
                    1984

6        500,000    Ill. Hlth. Facs.         AAA*      10.000         4/01/97 @ 100 S.F.             529,885
                    Auth. Rev. Rfndg.                  4/01/2015      4/01/95 @ 102 Ref.
                    Bonds (Lutheran
                    Institute of Human
                    Ecology) Series 1985A
                    (5)

7        500,000    Detroit Mi. Cnvntn.       AAA      9.000          9/30/03 @ 100 S.F.             521,900
                    Fac. Ltd. Tax Rev.                 9/30/2010      9/30/94 @ 103 Ref.
                    Bonds (Cobo Hall
                    Expansion Prjt.)
                    Series 1985(5)

8        300,000    N.C. Eastern Muni.       AAA*      4.500          7/01/20 @ 100 S.F.             229,845
                    Pwr. Agncy. Powr.                  1/01/2024      1/01/22 @ 100 Ref.
                    Sys. Rev. Rfndg.
                    Bonds Series 1987A
                    (5)

9        500,000    Tulsa Ok. Muni. Arpt.    BAA2*     9.500          No Sinking Fund                534,745
                    Indus. Dev. Rev.                   6/01/2020      12/01/95 @ 102 Ref.
                    Bonds-American
                    Airlines

10       500,000    Philadelphia Penn.        BBB      9.000          6/15/06 @ 100 S.F.             533,355
                    Arpt. Rev. Bonds                   6/15/2015      6/15/95 @ 103 Ref.
                    Series 1985
                    (Philadelphia Arpt.
                    Sys.)

11       500,000    York Cnty. Penn.          A2*      10.375         No Sinking Fund                521,815
                    Indus. Dev. Auth.                  11/01/2012     11/01/94 @ 102 Ref.
                    Poll. Cntrl. Rev.
                    Bonds (Pub. Serv.
                    Elec. & Gas Co. Peach
                    Bottom Prjt.) 1984
                    Series A

12       500,000    Baytown Tex. Indus.       AA       10.625         11/01/95 @ 100 S.F.            527,360
       ---------                                                                                ------------
                    Dev. Corp. Indus.                  11/01/2009     11/01/94 @ 103 Ref.
                    Dev. Rev. Bonds
                    Walmart Stores Inc.

    $  5,755,000                                                                             $     6,006,110
       =========                                                                                ============

See accompanying footnotes to financial statements and portfolio.
</TABLE>
<PAGE>
Footnotes to Portfolio

June 30, 1994


(1)  All ratings are by Standard & Poor's Corporation, except for
those identified by an asterisk (*) which are by Moody's Investors
Service, Inc.  A brief description of the ratings symbols and their
meanings is set forth under "Description of Bond Ratings" in Part B
of this Prospectus.

(2)  See "The Trust - Portfolio" in Part B of this Prospectus for an
explanation of redemption features.  See "Tax Status" in Part B of
this Prospectus for a statement of the Federal tax consequences to a
Certificateholder upon the sale, redemption or maturity of a bond.

(3)  At June 30, 1994, the net unrealized depreciation of all the
bonds was comprised of the following:

            Gross unrealized appreciation  $            45,708
            Gross unrealized depreciation            (441,640)

            Net unrealized depreciation    $          (395,932)

(4)  The annual interest income, based upon bonds held at June
30,1994, to the Trust is $559,400.

(5) The bonds have been prerefunded and will be redeemed at the
next refunding call date.

(6) Bonds sold or called after June 30, 1994 are noted in a
footnote "Changes in Trust Portfolio" under "Description of
Portfolio" in Part A of this Prospectus.

(7)  The Bonds may also be subject to other calls, which may be
permitted or required by events which cannot predicted (such as
destruction, condemnation, termination of a contract, or receipt
of excess or unanticipated revenues).
<PAGE>
                   


                 Note:  Part B of This Prospectus May Not Be     
                        Distributed Unless Accompanied by Part A.

                         Please Read and Retain Both Parts
                     of This Prospectus for Future Reference.


                            MUNICIPAL SECURITIES TRUST

                                 Prospectus Part B
       
                             Dated:  October 28, 1994
        

                                     THE TRUST

    Organization

              "Municipal Securities Trust" (the "Trust") consists of the "unit
    investment trusts" designated as set forth in Part A.*  The Trust was
    created under the laws of the State of New York pursuant to a Trust
    Indenture and Agreements** (collectively, the "Trust Agreement"), dated
    the Date of Deposit, among Bear, Stearns & Co. Inc., as Sponsor, Kenny S&P
    Evaluation Services, as Evaluator, and, depending on the particular Trust,
    either The Bank of New York or United States Trust Company of New York, as
    Trustee.  The name of the Trustee for a particular Trust is contained in
    the "Summary of Essential Information" in Part A.  For a description of
    the Trustee for a particular Trust, see "Trust Administration--The
    Trustee."

    *    This Part B relates to the outstanding series of Municipal Securities
         Trust or Municipal Securities Trust Discount Series as reflected in
         Part A attached hereto.


    **   References in this Prospectus to the Trust Agreements are qualified
         in their entirety by the respective Trust Indentures and Agreements
         which are incorporated herein by reference.

              On the Date of Deposit the Sponsor deposited with the Trustee
    long-term bonds and/or delivery statements relating to contracts for the
    purchase of certain such bonds (the "Bonds") and cash or an irrevocable
    letter of credit issued by a major commercial bank in the amount required
    for such purchases.  Thereafter, the Trustee, in exchange for the Bonds so
    deposited, delivered to the Sponsor the Certificates evidencing the
    ownership of all Units of the Trust. 

              The Trust consists of the bonds described under "The Trust" in
    Part A of this Prospectus, the interest (including, where applicable
    earned original discount) on which, in the opinions of bond counsel to the
    respective issuers given at the time of original delivery of the Bonds, is
    exempt from regular federal income tax under existing law. 

              Each "Unit" outstanding on the Evaluation Date represented an
    undivided interest or pro rata share in the principal and interest of the
    Trust in the per Unit ratio set forth under "Summary of Essential
    Information" in Part A.  To the extent that any Units are redeemed by the
    Trustee, the fractional undivided interest or pro rata share in the Trust
    represented by each unredeemed Unit will increase, although the actual
    interest in the Trust represented by such fraction will remain unchanged. 
    Units will remain outstanding until redeemed upon tender to the Trustee by
    Certificateholders, which may include the Sponsor or until the termination
    of the Trust Agreement. 

    Objectives
       
              The Trust, one of a series of similar but separate unit
    investment trusts formed by the Sponsor, offers investors the opportunity
    to participate in a portfolio of long-term tax-exempt bonds with a greater
    diversification than they might be able to acquire themselves.  The
    objectives of the Trust are to preserve capital and to provide interest
    income (including, where applicable, earned original issue discount)
    which, in the opinions of bond counsel to the respective issuers given at
    the time of original delivery of the Bonds, is, with certain exceptions,
    exempt from regular federal income tax under existing law.  Such interest
    income may, however, be subject to the federal corporate alternative
    minimum tax and to state and local taxes.  An investor will realize
    taxable income upon maturity or early redemption of the market discount
    bonds in a Trust portfolio and will realize, where applicable, tax-exempt
    income to the extent of the earned portion of interest, including original
    issue discount earned on the bonds in a Trust portfolio.  Investors should
    be aware that there is no assurance the Trust's objectives will be
    achieved as these objectives are dependent on the continuing ability of
    the issuers of the Bonds to meet their interest and principal payment
    requirements, on the continuing satisfaction of the Bonds of the
    conditions required for the exemption of interest thereon from regular
    federal income tax, and on the market value of the Bonds, which can be
    affected by fluctuations in interest rates and other factors.  
        

              Since disposition of Units prior to final liquidation of the
    Trust may result in an investor receiving less than the amount paid for
    such Units (see "Comparison of Public Offering Price, Sponsor's Repurchase
    Price and Redemption Price"), the purchase of a Unit should be looked upon
    as a long-term investment.  Neither the Trust nor the Total Reinvestment
    Plan is designed to be a complete investment program. 

    Portfolio

              All of the Bonds in the Trust were rated "A" or better by
    Standard & Poor's Corporation or Moody's Investors Service, Inc. at the
    time originally deposited in the Trust.  For a list of the ratings of each
    Bond on the Evaluation Date, see "Portfolio" in Part A. 

              For information regarding (i) the number of issues in the Trust,
    (ii) the range of fixed maturities of the Bonds, (iii) the number of
    issues payable from the income of a specific project or authority and
    (iv) the number of issues constituting general obligations of a government
    entity, see "The Trust" and "Portfolio" in Part A. 

              When selecting Bonds for the Trust, the following factors, among
    others, were considered by the Sponsor on the Date of Deposit:  (a) the
    quality of the Bonds and whether such Bonds were rated "A" or better by
    either Standard & Poor's Corporation or Moody's Investors Service, Inc.,
    (b) the yield and price of the Bonds relative to other tax-exempt
    securities of comparable quality and maturity, (c) income to the Certifi-
    cateholders of the Trust and (d) the diversification of the Trust
    portfolio, as to purpose of issue and location of issuer, taking into
    account the availability in the market of issues which meet the Trust's
    quality, rating, yield and price criteria.  Subsequent to the Evaluation
    Date, a Bond may cease to be rated or its rating may be reduced below that
    specified above.  Neither event requires an elimination of such Bond from
    a Trust but may be considered in the Sponsor's determination to direct the
    Trustee to dispose of the Bond.  See "Portfolio Supervision".  For an
    interpretation of the bond ratings see "Description of Bond Ratings".

              Housing Bonds.  Some of the aggregate principal amount of the
    Bonds may consist of obligations of state and local housing authorities
    whose revenues are primarily derived from mortgage loans to rental housing
    projects for low to moderate income families.  Since such obligations are
    usually not general obligations of a particular state or municipality and
    are generally payable primarily or solely from rents and other fees,
    adverse economic developments including failure or inability to increase
    rentals, fluctuations of interest rates and increasing construction and
    operating costs may reduce revenues available to pay existing obligations. 
    See "Description of Portfolio" in Part A for the amount of rental housing
    bonds contained therein.

              Hospital Revenue Bonds.  Some of the aggregate principal amount
    of the Bonds may consist of hospital revenue bonds.  Ratings of hospital
    bonds are often initially based on feasibility studies which contain
    projections of occupancy levels, revenues and expenses.  Actual experience
    may vary considerably from such projections.  A hospital's gross receipts
    and net income will be affected by future events and conditions including,
    among other things, demand for hospital services and the ability of the
    hospital to provide them, physicians' confidence in hospital management
    capability, economic developments in the service area, competition,
    actions by insurers and governmental agencies and the increased cost and
    possible unavailability of malpractice insurance.  Additionally, a major
    portion of hospital revenue typically is derived from federal or state
    programs such as Medicare and Medicaid which have been revised
    substantially in recent years and which are undergoing further review at
    the state and federal level.
       
              The health care delivery system is undergoing considerable
    alteration and consolidation.  Consistent with that trend, the ownership
    or management of a hospital or health care facility may change, which
    could result in (i) an early redemption of bonds, (ii) alteration of the
    facilities financed by the Bonds or which secure the Bonds, (iii) a change
    in the tax exempt status of the Bonds or (iv) an inability to produce
    revenues sufficient to make timely payment of debt service on the Bonds.

              Proposals for significant changes in the health care system and
    the present programs for third party payment of health care costs are
    under consideration in Congress and many states.  Future legislation or
    changes in the areas noted above, among other things, would affect all
    hospitals to varying degrees and, accordingly, any adverse change in these
    areas may affect the ability of such issuers to make payment of principal
    and interest on such bonds.  See "Description of Portfolio" in Part A for
    the amount of hospital revenue bonds contained therein.
        
              Nuclear Power Facility Bonds.  Certain Bonds may have been
    issued in connection with the financing of nuclear generating facilities. 
    In view of recent developments in connection with such facilities,
    legislative and administrative actions have been taken and proposed
    relating to the development and operation of nuclear generating
    facilities.  The Sponsor is unable to predict whether any such actions or
    whether any such proposals or litigation, if enacted or instituted, will
    have an adverse impact on the revenues available to pay the debt service
    on the Bonds in the portfolio issued to finance such nuclear projects. 
    See "Description of Portfolio" in Part A for the amount of bonds issued to
    finance nuclear generating facilities contained therein.

              Mortgage Subsidy Bonds.  Certain Bonds may be "mortgage subsidy
    bonds" which are obligations of which all or a significant portion of the
    proceeds are to be used directly or indirectly for mortgages on owner-
    occupied residences.  Section 103A of the Internal Revenue Code of 1954,
    as amended, provided as a general rule that interest on "mortgage subsidy
    bonds" will not be exempt from Federal income tax.  An exception is
    provided for certain "qualified mortgage bonds."  Qualified mortgage bonds
    are bonds that are used to finance owner-occupied residences and that meet
    numerous statutory requirements.  These requirements include certain
    residency, ownership, purchase price and target area requirements, ceiling
    amounts for state and local issuers, arbitrage restrictions and (for bonds
    issued after December 31, 1984) certain information reporting,
    certification, public hearing and policy statement requirements.  In the
    opinions of bond counsel to the issuing governmental authorities, interest
    on all the Bonds in a Trust that might be deemed "mortgage subsidy bonds"
    will be exempt from Federal income tax when issued.  See "Description of
    Portfolio" in Part A for the amount of mortgage subsidy Bonds contained
    therein. 

              Mortgage Revenue Bonds.  Certain Bonds may be "mortgage revenue
    bonds."  Under the Internal Revenue Code of 1986, as amended (the "Code")
    (and under similar provisions of the prior tax law) "mortgage revenue
    bonds" are obligations the proceeds of which are used to finance owner-
    occupied residences under programs which meet numerous statutory
    requirements relating to residency, ownership, purchase price and target
    area requirements, ceiling amounts for state and local issuers, arbitrage
    restrictions, and certain information reporting certification, and public
    hearing requirements.  There can be no assurance that additional federal
    legislation will not be introduced or that existing legislation will not
    be further amended, revised, or enacted after delivery of these Bonds or
    that certain required future actions will be taken by the issuing
    governmental authorities, which action or failure to act could cause
    interest on the Bonds to be subject to federal income tax.  If any portion
    of the Bonds proceeds are not committed for the purpose of the issue,
    Bonds in such amount could be subject to earlier mandatory redemption at
    par, including issues of Zero Coupon Bonds (see "Discount and Zero Coupon
    Bonds").  See "Description of Portfolio" in Part A for the amount of
    mortgage revenue bonds contained therein.
       
              Private Activity Bonds.  The portfolio of the Trust may contain
    other Bonds which are "private activity bonds" (often called Industrial
    Revenue Bonds ("IRBs") if issued prior to 1987) which would be primarily
    of two types:  (1) Bonds for a publicly owned facility which a private
    entity may have a right to use or manage to some degree, such as an
    airport, seaport facility or water system and (2) facilities deemed owned
    or beneficially owned by a private entity but which were financed with
    tax-exempt bonds of a public issuer, such as a manufacturing facility or a
    pollution control facility.  In the case of the first type, bonds are
    generally payable from a designated source of revenues derived from the
    facility and may further receive the benefit of the legal or moral
    obligation of one or more political subdivisions or taxing jurisdictions. 
    In most cases of project financing of the first type, receipts or revenues
    of the Issuer are derived from the project or the operator or from the
    unexpended proceeds of the bonds.  Such revenues include user fees,
    service charges, rental and lease payments, and mortgage and other loan
    payments.
        
              The second type of issue will generally finance projects which
    are owned by or for the benefit of, and are operated by, corporate
    entities.  Ordinarily, such private activity bonds are not general
    obligations of governmental entities and are not backed by the taxing
    power of such entities, and are solely dependent upon the creditworthiness
    of the corporate user of the project or corporate guarantor.

              The private activity bonds in the Trust have generally been
    issued under bond resolutions, agreements or trust indentures pursuant to
    which the revenues and receipts payable under the issuer's arrangements
    with the users or the corporate operator of a particular project have been
    assigned and pledged to the holders of the private activity bonds.  In
    certain cases a mortgage on the underlying project has been assigned to
    the holders of the private activity bonds or a trustee as additional
    security.  In addition, private activity bonds are frequently directly
    guaranteed by the corporate operator of the project or by another
    affiliated company.  See "Description of Portfolio" in Part A for the
    amount of private activity bonds contained therein.

              Litigation.  Litigation challenging the validity under state
    constitutions of present systems of financing public education has been
    initiated in a number of states.  Decisions in some states have been
    reached holding such school financing in violation of state constitutions. 
    In addition, legislation to effect changes in public school financing has
    been introduced in a number of states.  The Sponsor is unable to predict
    the outcome of the pending litigation and legislation in this area and
    what effect, if any, resulting changes in the sources of funds, including
    proceeds from property taxes applied to the support of public schools, may
    have on the school bonds in a Trust. 
       
              Legal Proceedings Involving the Trusts.  The Sponsor has been
    notified of the following events involving the County of El Paso, Colorado
    Single Family Mortgage Revenue Bonds, 1982 Series A (the "El Paso Bonds")
    contained in the portfolio of several of the Trusts set forth in Part A of
    this Prospectus:

              The Sponsor has been notified by the bond trustee that the
    obligor on the El Paso Bonds failed to make to the bond trustee the full
    interest payment due on September 1, 1994.  The failure to make a full
    interest payment to the bond trustee constitutes an event of default under
    the terms of the bond indenture.  Accordingly, the Trusts containing the
    El Paso Bonds have stopped accruing interest on the El Paso Bonds. 

              Other than the event of default relating to the El Paso Bonds
    described above, as of the date of this Prospectus the Sponsor has not 
    been notified or made aware of any litigation pending with respect to 
    any Bonds which might reasonably be expected to have a material adverse 
    effect on a Trust.  Such litigation, as, for example, suits challenging 
    the issuance of pollution control revenue bonds under recently-enacted 
    environmental protection statutes, may affect the validity of such 
    Bonds or the tax-free nature of the interest thereon.  At any time after
    the date of this Prospectus litigation may be instituted on a variety 
    of grounds with respect to the El Paso Bonds or any other Bonds in a 
    Trust.  The Sponsor is unable to predict whether any such litigation 
    may be instituted or, if instituted, whether it might have a material 
    adverse effect on a Trust.
        
              Other Factors.  The Bonds in the Trust, despite their optional
    redemption provisions which generally do not take effect until 10 years
    after the original issuance dates of such bonds (often referred to as "ten
    year call protection"), do contain provisions which require the issuer to
    redeem such obligations at par from unused proceeds of the issue within a
    stated period.  In recent periods there have been increased redemptions of
    bonds, particularly housing bonds, pursuant to such redemption provisions. 
    In addition, the Bonds in the Trusts are also subject to mandatory
    redemption in whole or in part at par at any time that voluntary or
    involuntary prepayments of principal on the underlying collateral are made
    to the trustee for such bonds or that the collateral is sold by the bond
    issuer.  Prepayments of principal tend to be greater in periods of
    declining interest rates; it is possible that such prepayments could be
    sufficient to cause a bond to be redeemed substantially prior to its
    stated maturity date, earliest call date or sinking fund redemption date.

              The Bonds may also be subject to other calls, which may be
    permitted or required by events which cannot be predicted (such as
    destruction, condemnation, or termination of a contract).

              In 1976 the federal bankruptcy laws were amended so that an
    authorized municipal debtor could more easily seek federal court
    protection to assist in reorganizing its debts so long as certain
    requirements were met.  Historically, very few financially troubled
    municipalities have sought court assistance for reorganizing their debts;
    notwithstanding, the Sponsors are unable to predict to what extent
    financially troubled municipalities may seek court assistance in
    reorganizing their debts in the future and, therefore, what effect, if
    any, the applicable federal bankruptcy law provisions will have on the
    Trusts.
       
              The Trust may also include "moral obligation" bonds.  Under
    statutes applicable to such bonds, if an issuer is unable to meet its
    obligations, the repayment of such bonds becomes a moral commitment but
    not a legal obligation of the state or municipality in question.  See
    "Description of Portfolio" and "The Trust" in Part A of this Prospectus
    for the amount of moral obligations bonds contained in the Trust.
        
              Certain of the Bonds in the Trust are subject to redemption
    prior to their stated maturity dates pursuant to sinking fund or call
    provisions.  A sinking fund is a reserve fund appropriated specifically
    toward the retirement of a debt.  A callable bond is one which is subject
    to redemption or refunding prior to maturity at the option of the issuer. 
    A refunding is a method by which a bond is redeemed at or before maturity
    from the proceeds of a new issue of bonds.  In general, call provisions
    are more likely to be exercised when the offering side evaluation of a
    bond is at a premium over par than when it is at a discount from par.  A
    listing of the sinking fund and call provisions, if any, with respect to
    each of the Bonds is contained under "Portfolio" in Part A of this
    Prospectus.  Certificateholders will realize a gain or loss on the early
    redemption of such Bonds, depending upon whether the price of such Bonds
    is at a discount from or at a premium over par at the time Certificate-
    holders purchase their Units. 

              Neither the Sponsor nor the Trustee shall be liable in any way
    for any default, failure or defect in any of the Bonds.  Because certain
    of the Bonds from time to time may be redeemed or will mature in
    accordance with their terms or may be sold under certain circumstances, no
    assurance can be given that a Trust will retain its present size and
    composition for any length of time.  The proceeds from the sale of a Bond
    or the exercise of any redemption or call provision will be distributed to
    Certificateholders on the next distribution date, except to the extent
    such proceeds are applied to meet redemptions of Units.  See "Trustee
    Redemption".

    Discount and Zero Coupon Bonds
       
              Some of the Bonds in the Municipal Discount Trust and Municipal
    Trust may contain original issue discount bonds (see "Description of
    Portfolio" in the Part A).  The original issue discount, which is the
    difference between the initial purchase price of the Bonds and the face
    value, is deemed to accrue on a daily basis and the accrued portion will
    be treated as tax-exempt interest income for regular federal income tax
    purposes.  Upon sale or redemption, any gain realized that is in excess of
    the earned portion of original issue discount will be taxable as capital
    gain.  (See "Tax Status".)  The current value of an original issue
    discount bond reflects the present value of its face amount at maturity. 
    The market value tends to increase more slowly in early years and in
    greater increments as the Bonds approach maturity.  Of these original
    issue discount bonds, a portion of the aggregate principal amount of the
    Bonds in the Trust are Zero Coupon Bonds.  Zero Coupon Bonds do not
    provide for the payment of any current interest and provide for payment at
    maturity at face value unless sooner sold or redeemed.  The market value
    of Zero Coupon Bonds is subject to greater fluctuation than coupon bonds
    in response to changes in interest rates.  Zero Coupon Bonds generally are
    subject to redemption at compound accreted value based on par value at
    maturity.  Because the issuer is not obligated to make current interest
    payments, Zero Coupon Bonds may be less likely to be redeemed than coupon
    bonds issued at a similar interest rate. 
        
              Some of the Bonds in the Trust may have been purchased at a
    "market" discount from par value at maturity.  This is because the coupon
    interest rates on the discount bonds at the time they were purchased and
    deposited in the Trust were lower than the current market interest rates
    for newly issued bonds of comparable rating and type.  At the time of
    issuance the discount bonds were for the most part issued at then current
    coupon interest rates.  The current returns (coupon interest income as a
    percentage of market price) of discount bonds will be lower than the
    current returns of comparably rated bonds of similar type newly issued at
    current interest rates because discount bonds tend to increase in market
    value as they approach maturity and the full principal amount becomes
    payable.  A discount bond held to maturity will have a larger portion of
    its total return in the form of capital gain and less in the form of tax-
    exempt interest income than a comparable bond newly issued at current
    market rates.  Gain on the disposition of a Bond purchased at a market
    discount generally will be treated as ordinary income, rather than capital
    gain, to the extent of accrued market discount.  Discount bonds with a
    longer term to maturity tend to have a higher current return and a lower
    current market value than otherwise comparable bonds with a shorter term
    of maturity.  If interest rates rise, the value of discount bonds will
    decrease; and if interest rates decline, the value of discount bonds will
    increase.  The discount does not necessarily indicate a lack of market
    confidence in the issuer. 


                                  PUBLIC OFFERING

    Offering Price

              The secondary market Public Offering Price per Unit is computed
    by adding to the aggregate bid price of the Bonds in each Trust divided by
    the number of Units outstanding, an amount based on the applicable sales
    charge times such aggregate bid price of the Bonds in each Trust (see
    "Public Offering Price" in Part A for the applicable sales charge for the
    Trust).  A proportionate share of accrued interest on the Bonds to the
    expected date of settlement for the Units is added to the Public Offering
    Price.  Accrued interest is the accumulated and unpaid interest on a Bond
    from the last day on which interest was paid and is initially accounted
    for daily by the Trust at the daily rate set forth under "Summary of
    Essential Information" in Part A.  The secondary market Public Offering
    Price can vary on a daily basis from the amount stated in Part A in
    accordance with fluctuations in the prices of the Bonds.  The price to be
    paid by each investor will be computed on the basis of an evaluation made
    on the day the Units are purchased.  The aggregate bid price evaluation of
    the Bonds is determined in the manner set forth under "Trustee
    Redemption".

              The Evaluator may obtain current prices for the Bonds from
    investment dealers or brokers (including the Sponsor) that customarily
    deal in tax-exempt obligations or from any other reporting service or
    source of information which the Evaluator deems appropriate. 

    Accrued Interest

              An amount of accrued interest which represents accumulated
    unpaid or uncollected interest on a Bond from the last day on which
    interest was paid thereon will be added to the Public Offering Price and
    paid by the Certificateholder at the time the Units are purchased.  Since
    the Trust normally receives the interest on Bonds twice a year and the
    interest on the Bonds in the Trust is accrued on a daily basis, the Trust
    will always have an amount of interest accrued but not actually received
    and distributed to Certificateholders.  A Certificateholder will not
    recover his proportionate share of accrued interest until the Units are
    sold or redeemed, or the Trust is terminated.  At that time, the Certifi-
    cateholder will receive his proportionate share of the accrued interest
    computed to the settlement date in the case of a sale or termination and
    to the date of tender in the case of redemption. 

    Employee Discounts

              Employees (and their immediate families) of Bear, Stearns & Co.
    Inc. and of any underwriter of a Trust, pursuant to employee benefit
    arrangements, may purchase Units of a Trust at a price equal to the bid
    side evaluation of the underlying securities in the Trust divided by the
    number of Units outstanding plus a reduced sales charge of $10.00 per
    Unit.  Such arrangements result in less selling effort and selling
    expenses than sales to employee groups of other companies.  Resales or
    transfers of Units purchased under the employee benefit arrangements may
    only be made through the Sponsor's secondary market, so long as it is
    being maintained. 

    Distribution of Units

              Certain banks and thrifts will make Units of the Trust available
    to their customers on an agency basis.  A portion of the sales charge paid
    by their customers is retained by or remitted to the banks.  Under the
    Glass-Steagall Act, banks are prohibited from underwriting Units; however,
    the Glass-Steagall Act does permit certain agency transactions and the
    banking regulators have indicated that these particular agency
    transactions are permitted under such Act.  In addition, state securities
    laws on this issue may differ from the interpretations of federal law
    expressed herein and banks and financial institutions may be required to
    register as dealers pursuant to state law.

              The Sponsor intends to qualify the Units for sale in
    substantially all States through dealers who are members of the National
    Association of Securities Dealers, Inc.  Units may be sold to dealers at
    prices which represent a concession of up to (a) 4% of the Public Offering
    Price for the Municipal Securities Trust Series or (b) $25.00 per unit for
    the Municipal Securities Trust Discount Series, subject to the Sponsor's
    right to change the dealers' concession from time to time.  Such Units may
    then be distributed to the public by the dealers at the Public Offering
    Price then in effect.  In addition, for transactions of 1,000,000 Units or
    more, the Sponsor intends to negotiate the applicable sales charge and
    such charge will be disclosed to any such purchaser.  The Sponsor reserves
    the right to reject, in whole or in part, any order for the purchase of
    Units.  The Sponsor reserves the right to change the discounts from time
    to time.

    Sponsor's Profits

              The Sponsor will receive a gross commission on all Units sold in
    the secondary market equal to the applicable sales charge on each
    transaction.  (See "Offering Price".)  In addition, in maintaining a
    market for the Units (see "Sponsor Repurchase"), the Sponsor will realize
    profits or sustain losses in the amount of any difference between the
    price at which it buys Units and the price at which it resells such Units.


              Participants in the "Total Reinvestment Plan" can designate a
    broker as the recipient of a dealer concession.  See "Total Reinvestment
    Plan".

    Comparison of Public Offering Price, Sponsor's Repurchase Price
      and Redemption Price

              The secondary market Public Offering Price of Units will be
    determined on the basis of the current bid prices of the Bonds in the
    Trust, plus the applicable sales charge.  The value at which Units may be
    resold in the secondary market or redeemed will be determined on the basis
    of the current bid prices of such Bonds without any sales charge.  On the
    Evaluation Date, the Public Offering Price per Unit (based on the bid
    prices of the Bonds in the Trust plus the sales charge) exceeded the
    Repurchase and Redemption Price per Unit (based upon the bid prices of the
    Bonds in the Trust without the sales charge) by the amount shown under
    "Summary of Essential Information" in Part A of this Prospectus.  For this
    reason, among others (including fluctuations in the market prices of Bonds
    and the fact that the Public Offering Price includes the applicable sales
    charge), the amount realized by a Certificateholder upon any redemption or
    repurchase of Units may be less than the price paid for such Units. 


              ESTIMATED LONG TERM RETURN AND ESTIMATED CURRENT RETURN
       
              The rate of return on an investment in Units of each Trust is
    measured in terms of "Estimated Current Return" and "Estimated Long Term
    Return".
        
              Estimated Long Term Return is calculated by:  (1) computing the
    yield to maturity or to an earlier call date (whichever results in a lower
    yield) for each Bond in a Trust's portfolio in accordance with accepted
    bond practices, which practices take into account not only the interest
    payable on the Bond but also the amortization of premiums or accretion of
    discounts, if any; (2) calculating the average of the yields for the Bonds
    in each Trust's portfolio by weighing each Bond's yield by the market
    value of the Bond and by the amount of time remaining to the date to which
    the Bond is priced (thus creating an average yield for the portfolio of
    each Trust); and (3) reducing the average yield for the portfolio of each
    Trust in order to reflect estimated fees and expenses of that Trust and
    the maximum sales charge paid by Certificateholders.  The resulting
    Estimated Long Term Return represents a measure of the return to
    Certificateholders earned over the estimated life of each Trust.  The
    Estimated Long Term Return as of the day prior to the Evaluation Date is
    stated for each Trust under "Summary of Essential Information" in Part A.

              Estimated Current Return is computed by dividing the Estimated
    Net Annual Interest Income per Unit by the Public Offering Price per Unit. 
    In contrast to the Estimated Long Term Return, the Estimated Current
    Return does not take into account the amortization of premium or accretion
    of discount, if any, on the Bonds in the portfolios of each Trust. 
    Moreover, because interest rates on Bonds purchased at a premium are
    generally higher than current interest rates on newly issued bonds of a
    similar type with comparable rating, the Estimated Current Return per Unit
    may be affected adversely if such Bonds are redeemed prior to their
    maturity.  On the day prior to the Evaluation Date, the Estimated Net
    Annual Interest Income per Unit divided by the Public Offering Price
    resulted in the Estimated Current Return stated for each Trust under
    "Summary of Essential Information" in Part A.

              The Estimated Net Annual Interest Income per Unit of each Trust
    will vary with changes in the fees and expenses of the Trustee and the
    Evaluator applicable to each Trust and with the redemption, maturity, sale
    or other disposition of the Bonds in each Trust.  The Public Offering
    Price will vary with changes in the bid prices of the Bonds.  Therefore,
    there is no assurance that the present Estimated Current Return or
    Estimated Long Term Return will be realized in the future.

              A schedule of cash flow projections is available from the
    Sponsors upon request.


                           RIGHTS OF CERTIFICATEHOLDERS

    Certificates

              Ownership of Units of the Trust is evidenced by registered
    Certificates executed by the Trustee and the Sponsor.  Certificates may be
    issued in denominations of one or more Units and will bear appropriate
    notations on their faces indicating which plan of distribution has been
    selected by the Certificateholder.  Certificates are transferable by
    presentation and surrender to the Trustee properly endorsed and/or
    accompanied by a written instrument or instruments of transfer.  Although
    no such charge is presently made or contemplated, the Trustee may require
    a Certificateholder to pay $2.00 for each Certificate reissued or
    transferred and any governmental charge that may be imposed in connection
    with each such transfer or interchange.  Mutilated, destroyed, stolen or
    lost Certificates will be replaced upon delivery of satisfactory indemnity
    and payment of expenses incurred. 

    Interest and Principal Distributions

              Interest received by the Trust is credited by the Trustee to an
    Interest Account and a deduction is made to reimburse the Trustee without
    interest for any amounts previously advanced.  Proceeds representing
    principal received from the maturity, redemption, sale or other
    disposition of the Bonds are credited to a Principal Account.

              Distributions to each Certificateholder from the Interest
    Account are computed as of the close of business on each Record Date for
    the following Payment Date and consist of an amount substantially equal to
    one-twelfth, one-half or all of each Certificateholder's pro rata share of
    the Estimated Net Annual Interest Income in the Interest Account,
    depending upon the applicable plan of distribution.  Distributions from
    the Principal Account will be computed as of each semi-annual Record Date,
    and will be made to the Certificateholders on or shortly after the next
    semi-annual Payment Date.  Proceeds representing principal received from
    the disposition of any of the Bonds between a Record Date and a Payment
    Date which are not used for redemptions of Units will be held in the
    Principal Account and not distributed until the second succeeding semi-
    annual Payment Date.  No distributions will be made to Certificateholders
    electing to participate in the Total Reinvestment Plan, except as provided
    thereunder.  Persons who purchase Units between a Record Date and a
    Payment Date will receive their first distribution on the second Payment
    Date after such purchase.

              Because interest payments are not received by the Trust at a
    constant rate throughout the year, interest distributions may be more or
    less than the amount credited to the Interest Account as of a given Record
    Date.  For the purpose of minimizing fluctuations in the distributions
    from the Interest Account, the Trustee will advance sufficient funds,
    without interest, as may be necessary to provide interest distributions of
    approximately equal amounts.  All funds in respect of the Bonds received
    and held by the Trustee prior to distribution to Certificateholders may be
    of benefit to the Trustee and do not bear interest to Certificateholders. 

              As of the first day of each month, the Trustee will deduct from
    the Interest Account, and, to the extent funds are not sufficient therein,
    from the Principal Account, amounts necessary to pay the expenses of the
    Trust (as determined on the basis set forth under "Trust Expenses and
    Charges").  The Trustee also may withdraw from said accounts such amounts,
    if any, as it deems necessary to establish a reserve for any applicable
    taxes or other governmental charges that may be payable out of the Trust. 
    Amounts so withdrawn shall not be considered a part of the Trust's assets
    until such time as the Trustee shall return all or any part of such
    amounts to the appropriate accounts.  In addition, the Trustee may
    withdraw from the Interest and Principal Accounts such amounts as may be
    necessary to cover redemptions of Units by the Trustee. 

              The estimated monthly, semi-annual or annual interest
    distribution per Unit will be in the amount shown under Summary of
    Essential Information and will change and may be reduced as bonds mature
    or are redeemed, exchanged or sold, or as expenses of the Trust fluctuate. 
    No distribution need be made from the Principal Account until the balance
    therein is an amount sufficient to distribute $1.00 per Unit. 

    Distribution Elections

              Interest is distributed monthly, semi-annually or annually,
    depending upon the distribution plan applicable to the Unit purchased. 
    Record Dates are the first day of each month for monthly distributions,
    the first day of each June and December for semi-annual distributions and
    the first day of each December for annual distributions.  Payment Dates
    will be the fifteenth day of each month following the respective Record
    Dates.  Certificateholders purchasing Units in the secondary market will
    initially receive distributions in accordance with the election of the
    prior owner.  Every October each Certificateholder may change his
    distribution election by notifying the Trustee in writing of such change
    between October 1 and November 1 of each year.  (Certificateholders
    deciding to change their election should contact the Trustee by calling
    the number listed on the back cover hereof for information regarding the
    procedures that must be followed in connection with this written
    notification of the change of election.)  Failure to notify the Trustee on
    or before November 1 of each year will result in a continuation of the
    plan for the following 12 months.

    Records

              The Trustee shall furnish Certificateholders in connection with
    each distribution a statement of the amount of interest, if any, and the
    amount of other receipts, if any, which are being distributed, expressed
    in each case as a dollar amount per Unit.  Within a reasonable time after
    the end of each calendar year (normally prior to January 31 of the
    succeeding year), the Trustee will furnish to each person who at any time
    during the calendar year was a Certificateholder of record, a statement
    showing (a) as to the Interest Account:  interest received (including any
    earned original issue discount and amounts representing interest received
    upon any disposition of Bonds), amounts paid for redemptions of Units, if
    any, deductions for applicable taxes and fees and expenses of the Trust,
    and the balance remaining after such distributions and deductions,
    expressed both as a total dollar amount and as a dollar amount
    representing the pro rata share of each Unit outstanding on the last
    business day of such calendar year; (b) as to the Principal Account:  the
    dates of disposition of any Bonds and the net proceeds received therefrom
    (including any unearned original issue discount but excluding any portion
    representing accrued interest), deductions for payments of applicable
    taxes and fees and expenses of the Trust, amounts paid for redemptions of
    Units, if any, and the balance remaining after such distributions and
    deductions, expressed both as a total dollar amount and as a dollar amount
    representing the pro rata share of each Unit outstanding on the last
    business day of such calendar year; (c) a list of the Bonds held and the
    number of Units outstanding on the last business day of such calendar
    year; (d) the Redemption Price per Unit based upon the last computation
    thereof made during such calendar year; and (e) amounts actually
    distributed to Certificateholders during such calendar year from the
    Interest and Principal Accounts, separately stated, expressed both as
    total dollar amounts and as dollar amounts representing the pro rata share
    of each Unit outstanding on the last business day of such calendar year. 

              The Trustee shall keep available for inspection by Certificate-
    holders at all reasonable times during usual business hours, books of
    record and account of its transactions as Trustee, including records of
    the names and addresses of Certificateholders, Certificates issued or
    held, a current list of Bonds in the portfolio and a copy of the Trust
    Agreement. 


                                    TAX STATUS


              All Bonds acquired by the Trust were accompanied by copies of
    opinions of bond counsel to the issuing governmental authorities given at
    the time of original delivery of the Bonds to the effect that the interest
    thereon is exempt from regular federal income tax, but such interest may
    be subject to the federal corporate alternative minimum tax and to state
    and local taxes.  Neither the Sponsor nor the Trustee nor their respective
    counsel have made any review of the proceedings relating to the issuance
    of the Bonds or the bases for such opinions, and express no opinion as to
    these matters, and neither the Trustee nor the Sponsor nor their
    respective counsel have made an independent examination or verification
    that the federal income tax status of the Bonds has not been altered since
    the time of the original delivery of those opinions. 

              The Revenue Reconciliation Act of 1993 ("P.L. 103-66") was
    recently enacted.  P.L. 103-66 increases maximum marginal income tax rates
    for individuals and corporations (generally effective for taxable years
    beginning after December 31, 1992), extends the authority to issue certain
    categories of tax-exempt bonds (qualified small issue bonds and qualified
    mortgage bonds), limits the availability of capital gain treatment for
    tax-exempt bonds purchased at a market discount, increases the amount of
    Social Security benefits subject to tax (effective for taxable years
    beginning after December 31, 1993) and makes a variety of other changes. 
    Prospective investors are urged to consult their own tax advisors as to
    the effect of P.L. 103-66 on an investment in Units.

              In rendering the opinion set forth below, counsel has examined
    the Agreement, the final form of Prospectus dated the date hereof (the
    "Prospectus") and the documents referred to therein, among others, and has
    relied on the validity of said documents and the accuracy and completeness
    of the facts set forth therein. 

              In the opinion of Battle Fowler, counsel for the Sponsor, under
    existing law: 

         The Trust is not an association taxable as a corporation for federal
    income tax purposes under the Internal Revenue Code of 1986 (the "Code"),
    and income received by the Trust that consists of interest excludable from
    federal gross income under the Code will be excludable from the federal
    gross income of the Certificateholders of the Trust. 

         Each Certificateholder will be considered the owner of a pro rata
    portion of the Trust under Section 676(a) of the Code.  Thus, each Cer-
    tificateholder will be considered to have received his pro rata share of
    Bond interest when it is received by the Trust, and the net income
    distributable to Certificateholders that is exempt from federal income tax
    when received by the Trust will constitute tax-exempt income when received
    by the Certificateholders. 

         Gain (other than any earned original issue discount) realized on a
    sale or redemption of the Bonds or on a sale of a Unit is, however,
    includable in gross income for federal income tax purposes, generally as
    capital gain, although gain on the disposition of a Bond or a Unit
    purchased at a market discount generally will be treated as ordinary
    income, rather than capital gain, to the extent of accrued market
    discount.  (It should be noted in this connection that such gain does not
    include any amounts received in respect of accrued interest.)  Such gain
    may be long or short-term depending on the facts and circumstances. 
    Capital losses are deductible to the extent of capital gains; in addition,
    up to $3,000 of capital losses of non-corporate Certificateholders may be
    deducted against ordinary income.  Capital assets acquired on or after
    January 1, 1988 must be held for more than one year to qualify for long-
    term capital gain treatment.  Individuals who realize long-term capital
    gains will be subject to a maximum tax rate of 28% on such gain. 

         Each Certificateholder will realize taxable gain or loss when the
    Trust disposes of a Bond (whether by sale, exchange, redemption or payment
    at maturity), as if the Certificateholder had directly disposed of his pro
    rata share of such Bond.  The gain or loss is measured by the difference
    between (i) the tax cost of such pro rata share and (ii) the amount
    received therefor.  For this purpose, a Certificateholder's tax cost for
    each Bond is determined by allocating the total tax cost of each Unit
    among all of the Bonds held in the Trust (in accordance with the portion
    of the Trust comprised by each Bond).  In order to determine the amount of
    taxable gain or loss, the Certificateholder's amount received is similarly
    allocated at that time.  The Certificateholder may exclude from the amount
    received any amounts that represent accrued interest or the earned portion
    of any original issue discount but may not exclude amounts attributable to
    market discount.  Thus, when a Bond is disposed of by the Trust at a gain,
    taxable gain will equal the difference between (i) the amount received and
    (ii) the amount paid plus any original issue discount (limited, in the
    case of Bonds issued after June 8, 1980, to the portion earned from the
    date of acquisition to the date of disposition).  Gain on the disposition
    of a Bond purchased at a market discount generally will be treated as
    ordinary income, rather than capital gain, to the extent of accrued market
    discount.  No deduction is allowed for the amortization of bond premium on
    tax-exempt bonds such as the Bonds in computing regular federal income
    tax.

         Discount generally accrues based on the principle of compounding of
    accrued interest, not on a straight-line or ratable method, with the
    result that the amount of earned original issue discount is less in the
    earlier years and more in the later years of a bond term.  The tax basis
    of a discount bond is increased by the amount of accrued, tax-exempt
    original issue discount thus determined.  This method of calculation will
    produce higher capital gains (or lower losses) to a Certificateholder, as
    compared to the results produced by the straight-line method of accounting
    for original issue discount, upon an early disposition of a Bond by the
    Trust or of a Unit by a Certificateholder.

         A Certificateholder may also realize taxable income or loss when a
    Unit is sold or redeemed.  The amount received is allocated among all the
    Bonds in the Trust in the same manner as when the Trust disposes of Bonds
    and the Certificateholder may exclude accrued interest and the earned
    portion of any original issue discount (but not amounts attributable to
    market discount).  The return of a Certificateholder's tax cost is
    otherwise a tax-free return of capital. 
       
         A portion of social security benefits is includable in gross income
    for taxpayers whose "modified adjusted gross income" combined with a
    portion of their benefits exceeds a base amount.  The base amount is
    $25,000 for an individual, $32,000 for a married couple filing a joint
    return and zero for married persons filing separate returns.  Interest on
    tax-exempt bonds is to be added to adjusted gross income for purposes of
    computing the amount of benefits that are includable in gross income and
    determining whether an individual's income exceeds the base amount above
    which a portion of the benefits would be subject to tax.  For taxable
    years beginning after December 31, 1993, the amount of Social Security
    benefits subject to tax has been increased.
        
         Corporate Certificateholders are required to include in federal
    corporate alternative minimum taxable income 75 percent of the amount by
    which the adjusted current earnings (which will include tax-exempt
    interest) of the corporation exceeds alternative minimum taxable income
    (determined without this item).  Further, interest on the Bonds is
    includable in a 0.12% additional corporate minimum tax imposed by the
    Superfund Amendments and Reauthorization Act of 1986 for taxable years
    beginning before January 1, 1996.  In addition, in certain cases, Subchap-
    ter S corporations with accumulated earnings and profits from Subchapter C
    years will be subject to a minimum tax on excess "passive investment
    income" which includes tax-exempt interest.

         The Trust is not subject to the New York State Franchise Tax on
    Business Corporations or the New York City General Corporation Tax.  For a
    Certificateholder who is a New York resident, however, a pro rata portion
    of all or part of the income of the Trust will be treated as the income of
    the Certificateholder under the income tax laws of the State and City of
    New York.  Similar treatment may apply in other states. 

              The exemption of interest on municipal obligations for federal
    income tax purposes does not necessarily result in exemption under the
    income tax laws of any state or political subdivision.  In general,
    municipal bond interest exempt from federal income tax is taxable income
    to residents of the State or City of New York under the tax laws of those
    jurisdictions unless the bonds are issued by the State of New York or one
    of its political subdivisions or by the Commonwealth of Puerto Rico or one
    of its political subdivisions.  For corporations doing business in New
    York State, interest earned on state and municipal obligations that are
    exempt from federal income tax, including obligations of New York State,
    its political subdivisions and instrumentalities, must be included in
    calculating New York State and New York City entire net income for
    purposes of computing New York State and New York City franchise (income)
    tax.  The laws of the several states and local taxing authorities vary
    with respect to the taxation of such obligations and each Certificate-
    holder is advised to consult his own tax advisor as to the tax
    consequences of his Certificates under state and local tax laws. 

              In the case of Bonds that are industrial revenue bonds ("IRBs")
    or certain types of private activity bonds, the opinions of bond counsel
    to the respective issuing authorities indicate that interest on such Bonds
    is exempt from regular federal income tax.  However, interest on such
    Bonds will not be exempt from regular federal income tax for any period
    during which such Bonds are held by a "substantial user" of the facilities
    financed by the proceeds of such Bonds or by a "related person" thereof
    within the meaning of the Code.  Therefore, interest on any such Bonds
    allocable to a Certificateholder who is such a "substantial user" or
    "related person" thereof will not be tax-exempt.  Furthermore, in the case
    of Bonds that qualify for the "small issue" exemption, the "small issue"
    exemption will not be available or will be lost if, at any time during the
    three-year period beginning on the later of the date the facilities are
    placed in service or the date of issue, all outstanding tax-exempt IRBs,
    together with a proportionate share of any present issue, of an owner or
    principal user (or related person) of the facilities exceeds $40,000,000. 
    In the case of IRBs issued under the $10,000,000 "small issue" exemption,
    interest on such IRBs will become taxable if the face amount of the IRBs
    plus certain capital expenditures exceeds $10,000,000. 

              In addition, a Bond can lose its tax-exempt status as a result
    of other subsequent but unforeseeable events such as prohibited
    "arbitrage" activities by the issuer of the Bond or the failure of the
    Bond to continue to satisfy the conditions required for the exemption of
    interest thereon from regular federal income tax.  No investigation has
    been made as to the current or future owners or users of the facilities
    financed by the Bonds, the amount of such persons' outstanding tax-exempt
    IRBs, or the facilities themselves, and no assurance can be given that
    future events will not affect the tax-exempt status of the Bonds. 
    Investors should consult their tax advisors for advice with respect to the
    effect of these provisions on their particular tax situation. 

              Interest on indebtedness incurred or continued to purchase or
    carry the Units is not deductible for federal income tax purposes.  In
    addition, under rules used by the Internal Revenue Service for determining
    when borrowed funds are considered used for the purpose of purchasing or
    carrying particular assets, the purchase of Units may be considered to
    have been made with borrowed funds even though the borrowed funds are not
    directly traceable to the purchase of Units.  Also, in the case of certain
    financial institutions that acquire Units, in general no deduction is
    allowed for interest expense allocable to such Units. 

              From time to time proposals have been introduced before Congress
    to restrict or eliminate the federal income tax exemption for interest on
    debt obligations similar to the Bonds in the Trust, and it can be expected
    that similar proposals may be introduced in the future.

              In a 1988 decision (South Carolina v. Baker), the U.S. Supreme
    Court held that the federal government may constitutionally require states
    to register bonds they issue and subject the interest on such bonds to
    federal income tax if not registered, and that there is no constitutional
    prohibition against the federal government's taxing the interest earned on
    state or other municipal bonds.  The Supreme Court decision affirms the
    authority of the federal government to regulate and control bonds such as
    the Bonds in the Trust and to tax interest on such bonds in the future. 
    The decision does not, however, affect the current exemption from taxation
    of the interest earned on the Bonds in the Trust in accordance with Sec-
    tion 103 of the Code. 

              The opinions of bond counsel or special tax counsel to the
    issuing governmental authorities to the effect that interest on the Bonds
    is exempt from regular federal income tax may be limited to law existing
    at the time the Bonds were issued, and may not apply to the extent that
    future changes in law, regulations or interpretations affect such Bonds. 
    Investors are advised to consult their own tax advisors for advice with
    respect to the effect of any legislative changes.


                                     LIQUIDITY

    Sponsor Repurchase

              The Sponsor, although not obligated to do so, intends to
    maintain a secondary market for the Units.  The Sponsor's secondary market
    repurchase price will be based on the aggregate bid price of the Bonds in
    the Trust portfolio, determined by the Evaluator on a daily basis, and
    will be the same as the redemption price.  See "Trustee Redemption".  Cer-
    tificateholders who wish to dispose of their Units should inquire of the
    Sponsor prior to making a tender for redemption.  The Sponsor may
    discontinue repurchases of Units if the supply of Units exceeds demand, or
    for other business reasons.  The date of repurchase is deemed to be the
    date on which Certificates representing Units are physically received in
    proper form by the Sponsor, Bear, Stearns & Co. Inc., 245 Park Avenue, New
    York, N.Y. 10167.  Units received after 4:00 P.M., New York Time, will be
    deemed to have been repurchased on the next business day.  In the event a
    market is not maintained for the Units, a Certificateholder may be able to
    dispose of Units only by tendering them to the Trustee for redemption. 

              Prospectuses relating to certain other bond trusts indicate an
    intention by the respective Sponsors, subject to change, to repurchase
    units on the basis of a price higher than the bid prices of the bonds in
    the trust.  Consequently, depending on the prices actually paid, the
    secondary market repurchase price of other trusts may be computed on a
    somewhat more favorable basis than the repurchase price offered by the
    Sponsor for units of this Trust, although in all bond trusts, the purchase
    price of a unit depends primarily on the value of the bonds in the trust
    portfolio. 

              Units purchased by the Sponsor in the secondary market may be
    reoffered for sale by the Sponsor at a price based on the aggregate bid
    price of the Bonds in the Trust plus the applicable sales charge (see
    "Public Offering Price" in Part A) plus net accrued interest.  Any Units
    that are purchased by the Sponsor in the secondary market also may be
    redeemed by the Sponsor if it determines such redemption to be in its best
    interest. 

              The Sponsor may, under certain circumstances, as a service to
    Certificateholders, elect to purchase any Units tendered to the Trustee
    for redemption.  (See "Trustee Redemption".)  For example, if in order to
    meet redemptions of Units the Trustee must dispose of Bonds, and if such
    disposition cannot be made by the redemption date (seven calendar days
    after tender), the Sponsor may elect to purchase such Units.  Such
    purchase shall be made by payment to the Certificateholder not later than
    the close of business on the redemption date of an amount equal to the
    Redemption Price on the date of tender. 

    Trustee Redemption

              Units also may be tendered to the Trustee for redemption at its
    corporate trust office as set forth in Part A of this Prospectus, upon
    proper delivery of Certificates representing such Units and payment of any
    relevant tax.  At the present time there are no specific taxes related to
    the redemption of Units.  No redemption fee will be charged by the Sponsor
    or the Trustee.  Units redeemed by the Trustee will be cancelled. 

              Certificates representing Units to be redeemed must be delivered
    to the Trustee and must be properly endorsed or accompanied by proper
    instruments of transfer with signature guaranteed (or by providing
    satisfactory indemnity, as in the case of lost, stolen or mutilated
    Certificates).  Thus, redemptions of Units cannot be effected until
    Certificates representing such Units have been delivered by the person
    seeking redemption.  (See "Certificates".)  Certificateholders must sign
    exactly as their names appear on the faces of their Certificates.  In
    certain instances the Trustee may require additional documents such as,
    but not limited to, trust instruments, certificates of death, appointments
    as executor or administrator or certificates of corporate authority. 

              Within seven calendar days following a tender for redemption,
    or, if such seventh day is not a business day, on the first business day
    prior thereto, the Certificateholder will be entitled to receive in cash
    an amount for each Unit tendered equal to the Redemption Price per Unit
    computed as of the Evaluation Time on the date of tender.  The "date of
    tender" is deemed to be the date on which Units are received by the
    Trustee, except that with respect to Units received after the close of
    trading on the New York Stock Exchange, the date of tender is the next day
    on which such Exchange is open for trading, and such Units will be deemed
    to have been tendered to the Trustee on such day for redemption at the
    Redemption Price computed on that day. 

              Accrued interest paid on redemption shall be withdrawn from the
    Interest Account, or, if the balance therein is insufficient, from the
    Principal Account.  All other amounts paid on redemption shall be
    withdrawn from the Principal Account.  The Trustee is empowered to sell
    Bonds in order to make funds available for redemptions.  Such sales, if
    required, could result in a sale of Bonds by the Trustee at a loss.  To
    the extent Bonds are sold, the size and diversity of the Trust will be
    reduced. 

              The Redemption Price per Unit is the pro rata share of each Unit
    in the Trust determined by the Trustee on the basis of (i) the cash on
    hand in the Trust or moneys in the process of being collected, (ii) the
    value of the Bonds in the Trust based on the bid prices of such Bonds and
    (iii) interest accrued thereon, less (a) amounts representing taxes or
    other governmental charges payable out of the Trust, (b) the accrued
    expenses of the Trust and (c) cash allocated for the distribution to Cer-
    tificateholders of record as of the business day prior to the evaluation
    being made.  The Evaluator may determine the value of the Bonds in the
    Trust for purposes of redemption (1) on the basis of current bid prices of
    the Bonds obtained from dealers or brokers who customarily deal in bonds
    comparable to those held by the Trust, (2) on the basis of bid prices for
    bonds comparable to any Bonds for which bid prices are not available,
    (3) by determining the value of the Bonds by appraisal, or (4) by any
    combination of the above. 

              The Trustee is irrevocably authorized in its discretion, if the
    Sponsor does not elect to purchase a Unit tendered for redemption or if
    the Sponsor tenders a Unit for redemption, in lieu of redeeming such Unit,
    to sell such Unit in the over-the-counter market for the account of the
    tendering Certificateholder at prices which will return to the Certifi-
    cateholder an amount in cash, net after deducting brokerage commissions,
    transfer taxes and other charges, equal to or in excess of the Redemption
    Price for such Unit.  The Trustee will pay the net proceeds of any such
    sale to the Certificateholder on the day he would otherwise be entitled to
    receive payment of the Redemption Price. 

              The Trustee reserves the right to suspend the right of
    redemption and to postpone the date of payment of the Redemption Price per
    Unit for any period during which the New York Stock Exchange is closed,
    other than customary weekend and holiday closings, or trading on that
    Exchange is restricted or during which (as determined by the Securities
    and Exchange Commission) an emergency exists as a result of which disposal
    or evaluation of the Bonds is not reasonably practicable, or for such
    other periods as the Securities and Exchange Commission may by order
    permit.  The Trustee and the Sponsor are not liable to any person or in
    any way for any loss or damage which may result from any such suspension
    or postponement. 

              A Certificateholder who wishes to dispose of his Units should
    inquire of his bank or broker in order to determine if there is a current
    secondary market price in excess of the Redemption Price. 


                              TOTAL REINVESTMENT PLAN


              Under the Total Reinvestment Plan (the "Plan"), semi-annual and
    annual Certificateholders (except Texas residents*) may elect to have all
    regular interest and principal distributions, if any, with respect to
    their Units reinvested either in units of various series of "Municipal
    Securities Trust" which will have been created shortly before each semi-
    annual or annual Payment Date (a "Primary Series") or, if units of a
    Primary Series are not available, in units of a previously formed series
    of the Trust which have been repurchased by the Sponsor in the secondary
    market, including the units being offered hereby (a "Secondary Series")
    (Primary Series and Secondary Series are hereafter collectively referred
    to as "Available Series").  June 15 and December 15 of each year, in the
    case of semi-annual Certificateholders, and December 15 of each year in
    the case of annual Certificateholders, are the "Plan Reinvestment Dates". 

    *    Texas residents may elect to participate in the "Total Reinvestment
         Plan for Texas Residents" hereinafter described.

              Under the Plan (subject to compliance with applicable blue sky
    laws), fractional units ("Plan Units") will be purchased from the Sponsor
    at a price equal to the aggregate offering price per Unit of the bonds in
    the Available Series portfolio during the initial offering of the
    Available Series or at the aggregate bid price per Unit of the Available
    Series if its initial offering has been completed, plus a sales charge
    equal to 3.627% of the net amount invested in such bonds or 3-1/2% of the
    Reinvestment Price per Plan Unit, plus accrued interest, divided by one
    hundred (the "Reinvestment Price per Plan Unit").  All Plan Units will be
    sold at this reduced sales charge of 3-1/2% in comparison to the regular
    sales charge levied on primary and secondary market sales of units in any
    series of "Municipal Securities Trust".  Participants in the Plan will
    have the opportunity to designate, in the Authorization Form for the Plan,
    the name of a broker to whom the Sponsor will allocate a sales commission
    of 1-1/2% per Plan Unit, payable out of the 3-1/2% sales charge.  If no
    such designation is made, the Sponsor will retain the sales commission. 

              Under the Plan, the entire amount of a participant's income and
    principal distributions will be reinvested.  For example, a Certificate-
    holder who is entitled to receive $130.50 interest income from the Trust
    would acquire 13.05 Plan Units assuming that the Reinvestment Price per
    Plan Unit, plus accrued interest, was $10. 

              A semi-annual or annual Certificateholder may join the Plan at
    the time he invests in Units of the Trust or any time thereafter by
    delivering to the Trustee an Authorization Form which is available from
    brokers or the Sponsor.  In order that distributions may be reinvested on
    a particular Plan Reinvestment Date, the Authorization Form must be
    received by the Trustee not later than the 15th day of the month preceding
    such Date.  Authorization Forms not received in time for a particular Plan
    Reinvestment Date will be valid only for the second succeeding Plan
    Reinvestment Date.  Similarly, a participant may withdraw from the Plan at
    any time by notifying the Trustee (see below).  However, if written
    confirmation of withdrawal is not given to the Trustee prior to a
    particular distribution, the participant will be deemed to have elected to
    participate in the Plan with respect to that particular distribution and
    his withdrawal would become effective for the next succeeding
    distribution. 

              Once delivered to the Trustee, an Authorization Form will
    constitute a valid election to participate in the Plan with respect to
    Units purchased of the Trust (and with respect to Plan Units purchased
    with the distributions from the Units purchased of the Trust) for each
    subsequent distribution as long as the Certificateholder continues to
    participate in the Plan.  However, if an Available Series should
    materially differ from the Trust in the opinion of the Sponsor, the
    authorization will be voided and participants will be provided with both a
    notice of the material change and a new Authorization Form which would
    have to be returned to the Trustee before the Certificateholder would
    again be able to participate in the Plan.  The Sponsor anticipates that a
    material difference which would result in a voided authorization would
    include such facts as the inclusion of bonds in the Available Series
    portfolio the interest income on which was not exempt from federal income
    tax, or the inclusion of bonds which were not rated "A" or better by
    either Standard & Poor's Corporation or Moody's Investors Service, Inc. on
    the date such bonds were initially deposited in the Available Series
    portfolio. 

              The Sponsor has the option at any time to use units of a
    Secondary Series to fulfill the requirements of the Plan in the event
    units of a Primary Series are not available either because a Primary
    Series is not then in existence or because the registration statement
    relating thereto is not declared effective in sufficient time to
    distribute final prospectuses to Plan participants (see below).  It should
    be noted that there is no assurance that the quality and diversification
    of the Bonds in any Available Series or the estimated current return
    thereon will be similar to that of this Trust. 

              It is the Sponsor's intention that Plan Units will be offered on
    or about each semi-annual and annual Record Date for determining who is
    eligible to receive distributions on the related Payment Date.  Such
    Record Dates are June 1 and December 1 of each year for semi-annual Cer-
    tificateholders, and December 1 of each year for annual Certificate-
    holders.  On each Record Date, the Sponsor will send a current Prospectus
    relating to the Available Series being offered for the next Plan
    Reinvestment Date along with a letter which reminds each participant that
    Plan Units are being purchased for him as part of the Plan unless he
    notifies the Trustee in writing by that Plan Reinvestment Date that he no
    longer wishes to participate in the Plan.  In the event a Primary Series
    has not been declared effective in sufficient time to distribute a final
    Prospectus relating thereto and there is no Secondary Series as to which a
    registration statement is currently effective, it is the Sponsor's
    intention to suspend the Plan and distribute to each participant his
    regular semi-annual or annual distribution.  If the Plan is so suspended,
    it will resume in effect with the next Plan Reinvestment Date assuming
    units of an Available Series are then being offered. 

              To aid a participant who might desire to withdraw either from
    the Plan or from a particular distribution, the Trustee has established a
    toll free number (see below) for participants to use for notification of
    withdrawal, which must be confirmed in writing prior to the Plan
    Reinvestment Date.  Should the Trustee be so notified, it will make the
    appropriate cash disbursement.  Unless the withdrawing participant
    specifically indicates in his written confirmation that (a) he wishes to
    withdraw from the Plan for that particular distribution only, or (b) he
    wishes to withdraw from the Plan for less than all units of each series of
    "Municipal Securities Trust" which he might then own (and specifically
    identifies which series are to continue in the Plan), he will be deemed to
    have withdrawn completely from the Plan in all respects.  Once a
    participant withdraws completely, he will only be allowed to again
    participate in the Plan by submitting a new Authorization Form.  A sale or
    redemption of a portion of a participant's Plan Units will not constitute
    a withdrawal from the Plan with respect to the remaining Plan Units owned
    by such participant. 

              Unless a Certificateholder notifies the Trustee in writing to
    the contrary, each semi-annual and annual Certificateholder who has
    acquired Plan Units will be deemed to have elected the semi-annual and
    annual plan of distribution, respectively, and to participate in the Plan
    with respect to distributions made in connection with such Plan Units. 
    (Should the Available Series from which Plan Units are purchased for the
    account of an annual Certificateholder fail to have an annual distribution
    plan, such Certificateholder will be deemed to have elected the semi-
    annual plan of distribution, and to participate in the Plan with respect
    to distributions made in connection with such Plan Units.)  A participant
    who subsequently desires to have distributions made with respect to Plan
    Units delivered to him in cash may withdraw from the Plan with respect to
    such Plan Units and remain in the Plan with respect to units acquired
    other than through the Plan.  Assuming a participant has his distributions
    made with respect to Plan Units reinvested, all such distributions will be
    accumulated with distributions generated from the Units of the Trust used
    to purchase such additional Plan Units.  However, distributions related to
    units in other series of "Municipal Securities Trust" will not be
    accumulated with the foregoing distributions for Plan purchases.  Thus, if
    a person owns units in more than one series of "Municipal Securities
    Trust" (which are not the result of purchases under the Plan),
    distributions with respect thereto will not be aggregated for purchases
    under the Plan. 

              Although not obligated to do so, the Sponsor has maintained and
    intends to continue to maintain a market for the Plan Units and
    continuously to offer to purchase Plan Units at prices based upon the
    aggregate bid price of the bonds in the Available Series portfolio, during
    the initial offering of the Available Series, or at the aggregate bid
    price of the Bonds in the Available Series if its initial offering has
    been completed.  The Sponsor may discontinue such purchases at any time. 
    The aggregate bid price of the underlying bonds may be expected to be less
    than the aggregate offering prices.  In the event that a market is not
    maintained for Plan Units, a participant desiring to dispose of his Plan
    Units may be able to do so only by tendering such Plan Units to the
    Trustee for redemption at the Redemption Price of full units in the
    Available Series corresponding to such Plan Units, which is based upon the
    aggregate bid price of the underlying bonds as described in the "Municipal
    Securities Trust" Prospectus for the Available Series in question.  If a
    participant wishes to dispose of his Plan Units, he should inquire of the
    Sponsor as to current market prices prior to making a tender for
    redemption to the Trustee. 

              Any participant may tender his Plan Units for redemption to the
    Available Series trustee.  Participants may redeem Plan Units by making a
    written request to the Trustee, at the address listed in the "Summary of
    Essential Information" in Part A on the Redemption Form supplied by the
    Trustee.  The redemption price per Plan Unit will be determined as set
    forth in the "Municipal Securities Trust" Prospectus of the Available
    Series from which such Plan Unit was purchased following receipt of the
    request and adjusted to reflect the fact that it relates to a Plan Unit. 
    There is no charge for the redemption of Plan Units. 

              The Trust Agreement requires that the Trustee notify the Sponsor
    of any tender of Plan Units for redemption.  So long as the Sponsor is
    maintaining a bid in the secondary market, the Sponsor will purchase any
    Plan Units tendered to the Trustee for redemption by making payment
    therefor to the Certificateholder in an amount not less than the
    redemption price for such Plan Units on the date of tender not later than
    the day on which such Plan Units would otherwise have been redeemed by the
    Trustee. 

              Participants in the Plan will not receive individual
    certificates for their Plan Units unless the amount of Plan Units
    accumulated represents the principal amount of bonds originally underlying
    each Unit and, in such case, a written request for certificates is made to
    the Trustee.  All Plan Units will be accounted for by the Trustee on a
    book entry system.  Each time Plan Units are purchased under the Plan, a
    participant will receive a confirmation stating his cost, number of Units
    purchased and estimated current return.  Questions regarding a
    participant's statement should be directed to the Trustee by calling the
    Trustee at the number listed in the "Summary of Essential Information" in
    Part A.

              All expenses relating to the operation of the Plan are borne by
    the Sponsor.  Both the Sponsor and the Trustee reserve the right to
    suspend, modify or terminate the Plan at any time for any reason,
    including the right to suspend the Plan if the Sponsor is unable or
    unwilling to establish a Primary Series or is unable to provide Secondary
    Series units.  All participants will receive notice of any such
    suspension, modification or termination. 

    Total Reinvestment Plan for Texas Residents

              Except as specifically provided under this Section, and unless
    the context otherwise requires, all provisions and definitions contained
    under the heading "Total Reinvestment Plan" shall be applicable to the
    Total Reinvestment Plan for Texas Residents ("Texas Plan"). 

              Semi-annual and annual Certificateholders of the Trust who are
    residents of Texas have the option prior to any semi-annual or annual
    distribution to elect affirmatively to reinvest that distribution,
    including both interest and principal, if any, in an Available Series. 

              A resident of Texas who is a semi-annual Certificateholder may
    join the Texas Plan for any particular semi-annual or annual distribution
    by delivering to the Trustee an Authorization Form For Texas Residents
    ("Texas Authorization Form") specifically mentioning the date of the
    particular semi-annual or annual distribution he wishes to reinvest.  On
    or about each semi-annual or annual Record Date, Texas Authorization Forms
    shall be sent by the Trustee to every Certificateholder who is a resident
    of Texas.  In the event that the Sponsor suspends the Plan or the Texas
    Plan, no Texas Authorization Forms shall be sent.  In order that
    distributions may be reinvested on a particular Plan Reinvestment Date,
    the Texas Authorization Form must be received by the Trustee on or before
    such Date.  Texas Authorization Forms not received in time for the Plan
    Reinvestment Date will be deemed void.  A participant who delivers a Texas
    Authorization Form to the Trustee may thereafter withdraw said
    authorization by notifying the Trustee at its toll free telephone number
    prior to a Plan Reinvestment Date.  Such notification of a withdrawal must
    be confirmed in writing prior to the Plan Reinvestment Date.  Under no
    circumstances shall a Texas Authorization Form be provided or accepted by
    the Trustee which provides for the reinvestment of distributions for more
    than one Plan Reinvestment Date. 

              On or about each semi-annual and annual Record Date, the Sponsor
    will send a current Prospectus relating to the Available Series being
    offered on the next Plan Reinvestment Date along with a letter
    incorporating a Texas Authorization Form which specifies the funds
    available for reinvestment, reminds each participant that no Plan Units
    will be purchased for him unless the Texas Authorization Form is received
    by the Trustee on or before that particular Plan Reinvestment Date, and
    states that the Texas Authorization Form is valid only for that particular
    semi-annual or annual distribution.  If the Available Series should
    materially differ from the Trust, the participant will be provided with a
    notice of the material change and a new Texas Authorization Form which
    would have to be returned to the Trustee before the Certificateholder
    would again be able to participate in the Plan. 

              Each semi-annual and annual Certificateholder who has acquired
    Plan Units will be deemed to have elected the semi-annual and annual plan
    of distribution, respectively, with respect to such Units, but such Cer-
    tificateholder will not be deemed to participate in the Plan for any
    particular distribution unless and until he delivers to the Trustee a
    Texas Authorization Form pertaining to those Plan Units.  (Should the
    Available Series from which Plan Units are purchased for the account of an
    annual Certificateholder fail to have an annual distribution plan, such
    Certificateholder will be deemed to have elected the semi-annual plan of
    distribution, and to participate in the Plan with respect to distributions
    made, in connection with such Plan Units.)


                               TRUST ADMINISTRATION

    Portfolio Supervision

              The Sponsor may direct the Trustee to dispose of Bonds upon
    (i) default in payment of principal or interest on such Bonds,
    (ii) institution of certain legal proceedings with respect to the issuers
    of such Bonds, (iii) default under other documents adversely affecting
    debt service on such Bonds, (iv) default in payment of principal or
    interest on other obligations of the same issuer or guarantor, (v)  with
    respect to revenue Bonds, decline in revenues and income of any facility
    or project below the estimated levels calculated by proper officials
    charged with the construction or operation of such facility or project or
    (vi) decline in price or the occurrence of other market or credit factors
    which in the opinion of the Sponsor would make the retention of such Bonds
    in the Trust detrimental to the interests of the Certificateholders.  If a
    default in the payment of principal or interest on any of the Bonds occurs
    and if the Sponsor fails to instruct the Trustee to sell or hold such
    Bonds, the Trust Agreement provides that the Trustee may sell such Bonds. 

              The Sponsor is authorized by the Trust Agreement to direct the
    Trustee to accept or reject certain plans for the refunding or refinancing
    of any of the Bonds.  Any bonds received in exchange or substitution will
    be held by the Trustee subject to the terms and conditions of the
    Agreement to the same extent as the Bonds originally deposited.  Within
    five days after such deposit, notice of such exchange and deposit shall be
    given by the Trustee to each Certificateholder registered on the books of
    the Trustee, including an identification of the Bonds eliminated and the
    bonds substituted therefor.  Except as stated, the acquisition by the
    Trust of any securities other than the bonds initially deposited is
    prohibited. 

    Trust Agreement, Amendment and Termination

              The Trust Agreement may be amended by the Trustee, the Sponsor
    and the Evaluator without the consent of any of the Certificateholders: 
    (1) to cure any ambiguity or to correct or supplement any provision which
    may be defective or inconsistent; (2) to change any provision thereof as
    may be required by the Securities and Exchange Commission or any successor
    governmental agency; or (3) to make such other provisions in regard to
    matters arising thereunder as shall not adversely affect the interests of
    the Certificateholders. 

              The Trust Agreement may also be amended in any respect, or
    performance of any of the provisions thereof may be waived, with the
    consent of the holders of Certificates evidencing 66-2/3% of the Units
    then outstanding, for the purpose of modifying the rights of Certificate-
    holders; provided that no such amendment or waiver shall reduce any Cer-
    tificateholder's interest in the Trust without his consent or reduce the
    percentage of Units required to consent to any such amendment or waiver
    without the consent of the holders of all Certificates.  The Trust
    Agreement may not be amended, without the consent of the holders of all
    Certificates then outstanding, to increase the number of Units issuable or
    to permit the acquisition of any bonds in addition to or in substitution
    for those initially deposited in the Trust, except in accordance with the
    provisions of the Trust Agreement.  The Trustee shall promptly notify Cer-
    tificateholders, in writing, of the substance of any such amendment. 

              The Trust Agreement provides that the Trust shall terminate upon
    the maturity, redemption or other disposition, as the case may be, of the
    last of the Bonds held in the Trust but in no event is it to continue
    beyond the end of the calendar year preceding the fiftieth anniversary of
    the execution of the Trust Agreement.  If the value of the Trust shall be
    less than the minimum amount set forth under "Summary of Essential
    Information" in Part A, the Trustee may, in its discretion, and shall,
    when so directed by the Sponsor, terminate the Trust.  The Trust may also
    be terminated at any time with the consent of the holders of Certificates
    representing 100% of the Units then outstanding.  In the event of
    termination, written notice thereof will be sent by the Trustee to all
    Certificateholders.  Within a reasonable period after termination, the
    Trustee must sell any Bonds remaining in the Trust, and, after paying all
    expenses and charges incurred by the Trust, distribute to each Certifi-
    cateholder, upon surrender for cancellation of his Certificate for Units,
    his pro rata share of the Interest and Principal Accounts. 

    The Sponsor

              The Sponsor, Bear, Stearns & Co. Inc., a Delaware corporation,
    is engaged in the underwriting, investment banking and brokerage business
    and is a member of the National Association of Securities Dealers, Inc.
    and all principal securities and commodities exchanges, including the New
    York Stock Exchange, the American Stock Exchange, the Midwest Stock
    Exchange and the Pacific Stock Exchange.  Bear Stearns maintains its
    principal business offices at 245 Park Avenue, New York, New York 10167
    and, since its reorganization from a partnership to a corporation in
    October, 1985 has been a wholly-owned subsidiary of The Bear Stearns
    Companies Inc.  Bear Stearns, through its predecessor entities, has been
    engaged in the investment banking and brokerage business since 1923.  Bear
    Stearns is the sponsor for numerous series of unit investment trusts,
    including:  A Corporate Trust, Series 1; New York Municipal Trust,
    Series 1 (and Subsequent Series), Discount & Zero Coupon Fund-1st Series
    (and Subsequent Series); Municipal Securities Trust, Series 1 (and
    Subsequent Series), 1st Discount Series (and Subsequent Series), Multi-
    State Series 1 (and Subsequent Series), High Income Trust Series 1 (and
    Subsequent Series), Insured Municipal Securities Trust, Series 1-4
    (Multiplier Portfolio), Series 1 (and Subsequent Series), 5th Discount
    Series (and Subsequent Series), Navigator Series (and Subsequent Series),
    Mortgage Securities Trust, CMO Series 1 (and Subsequent Series) and Equity
    Securities Trust, Series 1, Signature Series, Gabelli Communications
    Income Trust (and Subsequent Series).  The information included herein is
    only for the purpose of informing investors as to the financial
    responsibility of the Sponsor and its ability to carry out its contractual
    obligations. 

              The Sponsor is liable for the performance of its obligations
    arising from its responsibilities under the Trust Agreement, but will be
    under no liability to Certificateholders for taking any action, or
    refraining from taking any action, in good faith pursuant to the Trust
    Agreement, or for errors in judgment except in cases of its own willful
    misfeasance, bad faith, gross negligence or reckless disregard of its
    obligations and duties. 

              The Sponsor may resign at any time by delivering to the Trustee
    an instrument of resignation executed by the Sponsor. 

              If at any time the Sponsor shall resign or fail to perform any
    of its duties under the Trust Agreement or becomes incapable of acting or
    becomes bankrupt or its affairs are taken over by public authorities, then
    the Trustee may either (a) appoint a successor Sponsor; (b) terminate the
    Trust Agreement and liquidate the Trust; or (c) continue to act as Trustee
    without terminating the Trust Agreement.  Any successor Sponsor appointed
    by the Trustee shall be satisfactory to the Trustee and, at the time of
    appointment, shall have a net worth of at least $1,000,000. 

    The Trustee
       
              For certain of the Trusts as set forth in the "Summary of
    Essential Information" in Part A, the Trustee is United States Trust
    Company of New York, with its principal place of business at 770 Broadway,
    New York, New York 10003.  United States Trust Company of New York has,
    since its establishment in 1853, engaged primarily in the management of
    trust and agency accounts for individuals and corporations.  The Trustee
    is a member of the New York Clearing House Association and is subject to
    supervision and examination by the Superintendent of Banks of the State of
    New York, the Federal Deposit Insurance Corporation and the Board of
    Governors of the Federal Reserve System.
        
              For certain other Trusts as set forth in the "Summary of
    Essential Information" in Part A, the Trustee is The Bank of New York, a
    trust company organized under the laws of New York, having its offices at
    101 Barclay Street, New York, New York 10286 (1-800-431-8002).  The Bank
    of New York is subject to supervision and examination by the
    Superintendent of Banks of the State of New York and the Board of
    Governors of the Federal Reserve System, and its deposits are insured by
    the Federal Deposit Insurance Corporation to the extent permitted by law. 
    The Trustee must be a banking corporation organized under the laws of the
    United States or any state which is authorized under such laws to exercise
    corporate trust powers and must have at all times an aggregate capital,
    surplus and undivided profits of not less than $5,000,000.  The duties of
    the Trustee are primarily ministerial in nature.  The Trustee did not
    participate in the selection of Securities for the portfolio of the Trust.

              The Trustee shall not be liable or responsible in any way for
    taking any action, or for refraining from taking any action, in good faith
    pursuant to the Trust Agreement, or for errors in judgment; or for any
    disposition of any moneys, Bonds or Certificates in accordance with the
    Trust Agreement, except in cases of its own willful misfeasance, bad
    faith, gross negligence or reckless disregard of its obligations and
    duties; provided, however, that the Trustee shall not in any event be
    liable or responsible for any evaluation made by the Evaluator.  In
    addition, the Trustee shall not be liable for any taxes or other
    governmental charges imposed upon or in respect of the Bonds or the Trust
    which it may be required to pay under current or future law of the United
    States or any other taxing authority having jurisdiction.  The Trustee
    shall not be liable for depreciation or loss incurred by reason of the
    sale by the Trustee of any of the Bonds pursuant to the Trust Agreement. 

              For further information relating to the responsibilities of the
    Trustee under the Trust Agreement, see "Rights of Certificateholders". 

              The Trustee may resign by executing an instrument in writing and
    filing the same with the Sponsor, and mailing a copy of a notice of
    resignation to all Certificateholders.  In such an event the Sponsor is
    obligated to appoint a successor Trustee as soon as possible.  In
    addition, if the Trustee becomes incapable of acting or becomes bankrupt
    or its affairs are taken over by public authorities, the Sponsor may
    remove the Trustee and appoint a successor as provided in the Trust
    Agreement.  Notice of such removal and appointment shall be mailed to each
    Certificateholder by the Sponsor.  If upon resignation of the Trustee no
    successor has been appointed and has accepted the appointment within
    thirty days after notification, the retiring Trustee may apply to a court
    of competent jurisdiction for the appointment of a successor.  The
    resignation or removal of the Trustee becomes effective only when the
    successor Trustee accepts its appointment as such or when a court of
    competent jurisdiction appoints a successor Trustee.  Upon execution of a
    written acceptance of such appointment by such successor Trustee, all the
    rights, powers, duties and obligations of the original Trustee shall vest
    in the successor. 

              Any corporation into which the Trustee may be merged or with
    which it may be consolidated, or any corporation resulting from any merger
    or consolidation to which the Trustee shall be a party, shall be the
    successor Trustee.  The Trustee must always be a banking corporation
    organized under the laws of the United States or any State and have at all
    times an aggregate capital, surplus and undivided profits of not less than
    $2,500,000. 

    The Evaluator

              The Evaluator is Kenny S&P Evaluation Services, a division of
    Kenny Information Systems, Inc. with main offices located at 65 Broadway,
    New York, New York 10006.  The Evaluator is a wholly-owned subsidiary of
    McGraw-Hill, Inc.  The Evaluator is a registered investment advisor and
    also provides financial information services.

              The Trustee, the Sponsor and Certificateholders may rely on any
    evaluation furnished by the Evaluator and shall have no responsibility for
    the accuracy thereof.  Determinations by the Evaluator under the Trust
    Agreement shall be made in good faith upon the basis of the best
    information available to it, provided, however, that the Evaluator shall
    be under no liability to the Trustee, the Sponsor, or Certificateholders
    for errors in judgment, except in cases of its own willful misfeasance,
    bad faith, gross negligence or reckless disregard of its obligations and
    duties. 

              The Evaluator may resign or may be removed by the Sponsor and
    the Trustee, and the Sponsor and the Trustee are to use their best efforts
    to appoint a satisfactory successor.  Such resignation or removal shall
    become effective upon the acceptance of appointment by the successor
    Evaluator.  If upon resignation of the Evaluator no successor has accepted
    appointment within thirty days after notice of resignation, the Evaluator
    may apply to a court of competent jurisdiction for the appointment of a
    successor. 


                            TRUST EXPENSES AND CHARGES


              At no cost to the Trust, the Sponsor has borne all the expenses
    of creating and establishing the Trust, including the cost of initial
    preparation and execution of the Trust Agreement, registration of the
    Trust and the Units under the Investment Company Act of 1940 and the
    Securities Act of 1933, preparation and printing of the Certificates, the
    fees of the Evaluator during the initial public offering, legal and
    auditing expenses, advertising and selling expenses, initial fees and
    expenses of the Trustee and other out-of-pocket expenses. 

              The Sponsor will not charge the Trust a fee for its services as
    such.  See "Sponsor's Profits".

              The Trustee will receive for its ordinary recurring services to
    the Trust an annual fee in the amount set forth under "Summary of
    Essential Information" in Part A of this Prospectus.  For a discussion of
    the services performed by the Trustee pursuant to its obligations under
    the Trust Agreement, see "Trust Administration" and "Rights of Certifi-
    cateholders". 

              The Evaluator will receive, for each daily evaluation of the
    Bonds in the Trust, a fee in the amount set forth under "Summary of
    Essential Information" in Part A of this Prospectus. 

              The Trustee's and Evaluator's fees are payable monthly as of the
    Record Date from the Interest Account to the extent funds are available
    and then from the Principal Account.  Both fees may be increased without
    approval of the Certificateholders by amounts not exceeding proportionate
    increases in consumer prices for services as measured by the United States
    Department of Labor's Consumer Price Index entitled "All Services Less
    Rent". 

              The following additional charges are or may be incurred by the
    Trust:  all expenses (including counsel and auditing fees) of the Trustee
    incurred and advances made in connection with its activities under the
    Trust Agreement, including the expenses and costs of any action undertaken
    by the Trustee to protect the Trust and the rights and interests of the
    Certificateholders; fees of the Trustee for any extraordinary services
    performed under the Trust Agreement; indemnification of the Trustee for
    any loss or liability accruing to it without gross negligence, bad faith
    or willful misconduct on its part, arising out of or in connection with
    its acceptance or administration of the Trust; indemnification of the
    Sponsor for any loss, liabilities and expenses incurred in acting as
    Sponsor of the Trust without gross negligence, bad faith or willful
    misconduct on its part; and all taxes and other governmental charges
    imposed upon the Bonds or any part of the Trust (no such taxes or charges
    are being levied, made or, to the knowledge of the Sponsor, contemplated). 
    The above expenses, including the Trustee's fees, when paid by or owing to
    the Trustee are secured by a first lien on the Trust.  In addition, the
    Trustee is empowered to sell Bonds in order to make funds available to pay
    all expenses. 


                      EXCHANGE PRIVILEGE AND CONVERSION OFFER

    Exchange Privilege

              Certificateholders may elect to exchange any or all of their
    Units of these Trusts for Units of one or more of any available series of
    Insured Municipal Securities Trust, Municipal Securities Trust, New York
    Municipal Trust, Mortgage Securities Trust, A Corporate Trust or Equity
    Securities Trust (upon receipt by Equity Securities Trust of an
    appropriate exemptive order from the Securities and Exchange Commission)
    (the "Exchange Trusts") at a reduced sales charge as set forth below. 
    Under the Exchange Privilege, the Sponsor's repurchase price of the Units
    being surrendered, and only after the initial offering period is
    completed, will be based on the aggregate bid price of the Bonds in the
    particular Trust portfolio.  Units in an Exchange Trust then will be sold
    to the Certificateholder at a price based on the aggregate offer price of
    the Bonds in the Exchange Trust portfolio during the initial public
    offering period of the Exchange Trust (or for Units of Equity Securities
    Trust, based on the market value of the underlying securities in the
    Equity Trust portfolio); or based on the aggregate bid price of the Bonds
    in the Exchange Trust portfolio if its initial public offering has been
    completed, plus accrued interest (or for Units of Equity Securities Trust,
    based on the market value of the underlying securities in the Equity Trust
    portfolio) and a reduced sales charge as set forth below.

              Except for unitholders who wish to exercise the Exchange
    Privilege within the first five months of their purchase of Units of
    Trust, the sales charge applicable to the purchase of units of an Exchange
    Trust shall be $15 per unit (or per 1,000 Units for the Mortgage
    Securities Trust or per 100 Units for the Equity Securities Trust)
    (approximately 1.5% of the price of each Exchange Trust unit (or 1,000
    Units for the Mortgage Securities Trust or 100 Units for the Equity
    Securities Trust)).  For unitholders who wish to exercise the Exchange
    Privilege within the first five months of their purchase of Units of
    Trust, the sales charge applicable to the purchase of units of an Exchange
    Trust shall be the greater of (i) $15 per unit (or per 1,000 Units for the
    Mortgage Securities Trust or per 100 Units for the Equity Securities
    Trust), or (ii) an amount which when coupled with the sales charge paid by
    the unitholder upon his original purchase of Units of the Trust at least
    equals the sales charge applicable in the direct purchase of units of an
    Exchange Trust.  The Exchange Privilege is subject to the following
    conditions:

              (1)  The Sponsor must be maintaining a secondary market in both
         the Units of the Trust held by the Certificateholder and the Units of
         the available Exchange Trust.  While the Sponsor has indicated its
         intention to maintain a market in the Units of all Trusts sponsored
         by it, the Sponsor is under no obligation to continue to maintain a
         secondary market and therefore there is no assurance that the
         Exchange Privilege will be available to a Certificateholder at any
         specific time in the future.  At the time of the Certificateholder's
         election to participate in the Exchange Privilege, there also must be
         Units of the Exchange Trust available for sale, either under the
         initial primary distribution or in the Sponsor's secondary market.

              (2)  Exchanges will be effected in whole units only.  Any excess
         proceeds from the Units surrendered for exchange will be remitted and
         the selling Certificateholder will not be permitted to advance any
         new funds in order to complete an exchange.  Units of the Mortgage
         Securities Trust may only be acquired in blocks of 1,000 Units. 
         Units of the Equity Securities Trust may only be acquired in blocks
         of 100 Units.

              (3)  The Sponsor reserves the right to suspend, modify or
         terminate the Exchange Privilege.  The Sponsor will provide
         unitholders of the Trust with 60 days' prior written notice of any
         termination or material amendment to the Exchange Privilege, provided
         that, no notice need be given if (i) the only material effect of an
         amendment is to reduce or eliminate the sales charge payable at the
         time of the exchange, to add one or more series of the Trust eligible
         for the Exchange Privilege or to delete a series which has been
         terminated from eligibility for the Exchange Privilege, (ii) there is
         a suspension of the redemption of units of an Exchange Trust under
         Section 22(e) of the Investment Company Act of 1940, or (iii) an
         Exchange Trust temporarily delays or ceases the sale of its units
         because it is unable to invest amounts effectively in accordance with
         its investment objectives, policies and restrictions.  During the 60
         day notice period prior to the termination or material amendment of
         the Exchange Privilege described above, the Sponsor will continue to
         maintain a secondary market in the units of all Exchange Trusts that
         could be acquired by the affected unitholders.  Unitholders may,
         during this 60 day period, exercise the Exchange Privilege in
         accordance with its terms then in effect.  In the event the Exchange
         Privilege is not available to a Certificateholder at the time he
         wishes to exercise it, the Certificateholder will immediately be
         notified and no action will be taken with respect to his Units
         without further instructions from the Certificateholder.

              To exercise the Exchange Privilege, a Certificateholder should
    notify the Sponsor of his desire to exercise his Exchange Privilege.  If
    Units of a designated, outstanding series of an Exchange Trust are at the
    time available for sale and such Units may lawfully be sold in the state
    in which the Certificateholder is a resident, the Certificateholder will
    be provided with a current prospectus or prospectuses relating to each
    Exchange Trust in which he indicates an interest.  He may then select the
    Trust or Trusts into which he desires to invest the proceeds from his sale
    of Units.  The exchange transaction will operate in a manner essentially
    identical to a secondary market transaction except that units may be
    purchased at a reduced sales charge.

              Example:  Assume that after the initial public offering has been
    completed, a Certificateholder has five units of a Trust with a current
    value of $700 per unit which he has held for more than 5 months and the
    Certificateholder wishes to exchange the proceeds for units of a secondary
    market Exchange Trust with a current price of $725 per unit.  The proceeds
    from the Certificateholder's original units will aggregate $3,500.  Since
    only whole units of an Exchange Trust may be purchased under the Exchange
    Privilege, the Certificateholder would be able to acquire four units (or
    4,000 Units of the Mortgage Securities Trust or 400 Units of the Equity
    Securities Trust) for a total cost of $2,960 ($2,900 for unit and $60 for
    the sales charge).  The remaining $540 would be remitted to the
    Certificateholder in cash.  If the Certificateholder acquired the same
    number of units at the same time in a regular secondary market
    transaction, the price would have been $3,068.80 ($2,900 for units and
    $168.80 for the sales charge, assuming a 5 1/2% sales charge times the
    public offering price).

    The Conversion Offer

              Unit owners of any registered unit investment trust for which
    there is no active secondary market in the units of such trust (a
    "Redemption Trust") may elect to redeem such units and apply the proceeds
    of the redemption to the purchase of available Units of one or more series
    of A Corporate Trust, Municipal Securities Trust, Insured Municipal
    Securities Trust, Mortgage Securities Trust, New York Municipal Trust or
    Equity Securities Trust (upon receipt by the Equity Securities Trust of an
    appropriate exemptive order from the Securities and Exchange Commission)
    sponsored by Bear, Stearns & Co. Inc. or the Sponsor (the "Conversion
    Trusts") at the Public Offering Price for units of the Conversion Trust
    based on a reduced sales charge as set forth below.  Under the Conversion
    Offer, units of the Redemption Trust must be tendered to the trustee of
    such trust for redemption at the redemption price, which is based upon the
    aggregate bid side evaluation of the underlying bonds in such trust and is
    generally about 1-1.2% to 2% lower than the offering price for such bonds
    (or for Units of Equity Securities Trust, based on the market value of the
    underlying securities in the Equity Trust portfolio).  The purchase price
    of the units in the Conversion Trust will be based on the aggregate offer
    price of the bonds in the Conversion Trust Portfolio during its initial
    offering price (or for Units of Equity Securities Trust, based on the
    market value of the underlying securities in the Equity Trust portfolio);
    or, at a price based on the aggregate bid price of the underlying bonds if
    the initial public offering of the Conversion Trust has been completed,
    plus accrued interest (or for Units of Equity Securities Trust, based on
    the market value of the underlying securities in the Equity Trust
    portfolio) and a sales charge as set forth below.

              Except for unitholders who wish to exercise the Conversion Offer
    within the first five months of their purchase of units of a Redemption
    Trust, the sales charge applicable to the purchase of Units of the
    Conversion Trust shall be $15 per Unit (or per 1,000 Units for the
    Mortgage Securities Trust or per 100 Units for the Equity Securities
    Trust).  For unitholders who wish to exercise the Conversion Offer within
    the first five months of their purchase of units of a Redemption Trust,
    the sales charge applicable to the purchase of Units of a Conversion Trust
    shall be the greater of (i) $15 per Unit (or per 1,000 Units for the
    Mortgage Securities Trust or per 100 Units for the Equity Securities
    Trust) or (ii) an amount which when coupled with the sales charge paid by
    the unitholder upon his original purchase of units of the Redemption Trust
    at least equals the sales charge applicable in the direct purchase of
    Units of a Conversion Trust.  The Conversion Offer is subject to the
    following limitations:

              (1)  The Conversion Offer is limited only to unit owners of any
         Redemption Trust, defined as a unit investment trust for which there
         is no active secondary market at the time the Certificateholder
         elects to participate in the Conversion Offer.  At the time of the
         unit owner's election to participate in the Conversion Offer, there
         also must be available units of a Conversion Trust, either under a
         primary distribution or in the Sponsor's secondary market.

              (2)  Exchanges under the Conversion Offer will be effected in
         whole units only.  Unit owners will not be permitted to advance any
         new funds in order to complete an exchange under the Conversion
         Offer.  Any excess proceeds from units being redeemed will be
         returned to the unit owner.  Units of the Mortgage Securities Trust
         may only be acquired in blocks of 1,000 units.  Units of the Equity
         Securities Trust may only be acquired in blocks of 100 Units.

              (3)  The Sponsor reserves the right to modify, suspend or
         terminate the Conversion Offer at any time without notice to unit
         owners of Redemption Trusts.  In the event the Conversion Offer is
         not available to a unit owner at the time he wishes to exercise it,
         the unit owner will be notified immediately and no action will be
         taken with respect to his units without further instruction from the
         unit owner.  The Sponsor also reserves the right to raise the sales
         charge based on actual increases in the Sponsor's costs and expenses
         in connection with administering the program, up to a maximum sales
         charge of $20 per unit (or per 1,000 units for the Mortgage
         Securities Trust or per 100 Units for the Equity Securities Trust).

              To exercise the Conversion Offer, a unit owner of a Redemption
    Trust should notify his retail broker of his desire to redeem his
    Redemption Trust Units and use the proceeds from the redemption to
    purchase Units of one or more of the Conversion Trusts.  If Units of a
    designated, outstanding series of a Conversion Trust are at that time
    available for sale and if such Units may lawfully be sold in the state in
    which the unit owner is a resident, the unit owner will be provided with a
    current prospectus or prospectuses relating to each Conversion Trust in
    which he indicates an interest.  He then may select the Trust or Trusts
    into which he decides to invest the proceeds from the sale of his Units. 
    The transaction will be handled entirely through the unit owner's retail
    broker.  The retail broker must tender the units to the trustee of the
    Redemption Trust for redemption and then apply the proceeds to the
    redemption toward the purchase of units of a Conversion Trust at a price
    based on the aggregate offer or bid side evaluation per Unit of the
    Conversion Trust, depending on which price is applicable, plus accrued
    interest and the applicable sales charge.  The certificates must be
    surrendered to the broker at the time the redemption order is placed and
    the broker must specify to the Sponsor that the purchase of Conversion
    Trust Units is being made pursuant to the Conversion Offer.  The unit
    owner's broker will be entitled to retain $5 of the applicable sales
    charge.

              Example:  Assume a unit owner has five units of a Redemption
    Trust which has held for more than 5 months with a current redemption
    price of $675 per unit based on the aggregate bid price of the underlying
    bonds and the unit owner wishes to participate in the Conversion Offer and
    exchange the proceeds for units of a secondary market Conversion Trust
    with a current price of $750 per Unit.  The proceeds from the unit owner's
    redemption of units will aggregate $3,375.  Since only whole units of a
    Redemption Trust may be purchased under the Conversion Offer, the unit
    owner will be able to acquire four units of the Conversion Trust (or 4,000
    units of the Mortgage Securities Trust or 400 Units for the Equity
    Securities Trust) for a total cost of $2,860 ($2,800 for units and $60 for
    the sales charge).  The remaining $515 would be remitted to the unit owner
    in cash.  If the unit owner acquired the same number of Conversion Trust
    units at the same time in a regular secondary market transaction, the
    price would have been $2,962.96 ($2,800 for units and $162.96 sales
    charge, assuming a 5 1/2% sales charge times the public offering price).

    Description Of The Exchange Trusts And The Conversion Trusts

              A Corporate Trust may be an appropriate investment vehicle for
    an investor who is more interested in a higher current return on his
    investment (although taxable) than a tax-exempt return (resulting from the
    fact that the current return from taxable fixed income securities is
    normally higher than that available from tax-exempt fixed income
    securities).  Municipal Securities Trust and New York Municipal Trust may
    be appropriate investment vehicles for an investor who is more interested
    in tax-exempt income.  The interest income from New York Municipal Trust
    is, in general, also exempt from New York State and local New York income
    taxes, while the interest income from Municipal Securities Trust is
    subject to applicable New York State and local New York taxes, except for
    that portion of the income which is attributable to New York obligations
    in the Trust portfolio, if any.  The interest income from each State Trust
    of the Municipal Securities Trust, Multi-State Series is, in general,
    exempt from state and local taxes when held by residents of the state
    where the issuers of bonds in such State Trusts are located.  The Insured
    Municipal Securities Trust combines the advantages of providing interest
    income free from regular federal income tax under existing law with the
    added safety of irrevocable insurance.  Insured Navigator Series further
    combines the advantages of providing interest income free from regular
    federal income tax and state and local taxes when held by residents of the
    state where issuers of bonds in such state trusts are located with the
    added safety of irrevocable insurance.  Mortgage Securities Trust offers
    an investment vehicle for investors who are interested in obtaining safety
    of capital and a high level of current distribution of interest income
    through investment in a fixed portfolio of collateralized mortgage
    obligations.  Equity Securities Trust offers investors an opportunity to
    achieve capital appreciation together with a high level of current income.

    Tax Consequences Of The Exchange Privilege And The Conversion Offer

              A surrender of units pursuant to the Exchange Privilege or the
    Conversion Offer normally will constitute a "taxable event" to the Cer-
    tificateholder under the Code.  The Certificateholder will recognize a tax
    gain or loss that will be of a long or short-term capital or ordinary
    income nature depending on the length of time the units have been held and
    other factors.  A Certificateholder's tax basis in the Units acquired
    pursuant to the Exchange Privilege or Conversion Offer will be equal to
    the purchase price of such Units.  Investors should consult their own tax
    advisors as to the tax consequences to them of exchanging or redeeming
    units and participating in the Exchange Privilege or Conversion Offer. 



                                   OTHER MATTERS

    Legal Opinions
       
              The legality of the Units originally offered and certain matters
    relating to federal tax law have been passed upon by Messrs. Battle
    Fowler, 75 East 55th Street, New York, New York 10022, or Berger Steingut
    Tarnoff & Stern, 600 Madison Avenue, New York, New York 10022, as counsel
    for the Sponsor.  Messrs. Carter, Ledyard & Milburn, Two Wall Street, New
    York, New York 10005 have acted as counsel for United States Trust Company
    of New York.  On the initial date of deposit, Messrs. Booth & Baron acted
    as counsel for The Bank of New York. 

    Independent Auditors

              The financial statements of the Trusts included in Part A of
    this Prospectus as of the dates set forth in Part A have been examined by
    KPMG Peat Marwick, independent certified public accountants for the
    periods indicated in its reports appearing herein.  The financial
    statements of KPMG Peat Marwick have been so included in reliance on its
    report given upon the authority of said firm as experts in accounting and
    auditing. 
        

                           DESCRIPTION OF BOND RATINGS*

    Standard & Poor's Corporation

              A brief description of the applicable Standard & Poor's
    Corporation rating symbols and their meanings is as follows: 

              A Standard & Poor's corporate or municipal bond rating is a
    current assessment of the creditworthiness of an obligor with respect to a
    specific debt obligation.  This assessment of creditworthiness may take
    into consideration obligors such as guarantors, insurers, or lessees.

    *    As described by the rating agencies.

              The bond rating is not a recommendation to purchase or sell a
    security, inasmuch as it does not comment as to market price. 

              The ratings are based on current information furnished to
    Standard & Poor's by the issuer and obtained by Standard & Poor's from
    other sources it considers reliable.  The ratings may be changed,
    suspended or withdrawn as a result of changes in, or unavailability of,
    such information. 

              The ratings are based, in varying degrees, on the following
    considerations: 

         (1)  Likelihood of default--capacity and willingness of the obligor
    as to the timely payment of interest and repayment of principal in
    accordance with the terms of the obligation. 

         (2)  Nature of and provisions of the obligation. 

         (3)  Protection afforded by, and relative position of, the obligation
    in the event of bankruptcy, reorganization or other arrangement under the
    laws of bankruptcy and other laws affecting creditors' rights. 

              AAA --  This is the highest rating assigned by Standard & Poor's
    to a debt obligation and indicates an extremely strong capacity to pay
    principal and interest. 

              AA --  Bonds rated AA also qualify as high-quality debt
    obligations.  Capacity to pay principal and interest is very strong, and
    they differ from AAA issues only in small degrees.

              A --  Bonds rated A have a strong capacity to pay principal and
    interest, although they are somewhat more susceptible to the adverse
    effects of changes in circumstances and economic conditions. 

              BBB --  Bonds rated BBB are regarded as having an adequate
    capacity to pay principal and interest.  Whereas they normally exhibit
    adequate protection parameters, adverse economic conditions or changing
    circumstances are more likely to lead to a weakened capacity to pay
    principal and interest for bonds in this category than for bonds in the A
    category. 

              Plus (+) or Minus (-):  To provide more detailed indications of
    credit quality, the ratings from "AA" to "BB" may be modified by the
    addition of a plus or minus sign to show relative standing within the
    major rating categories. 

              Provisional Ratings -- (Prov.) following a rating indicates the
    rating is provisional, which assumes the successful completion of the
    project being financed by the issuance of the bonds being rated and
    indicates that payment of debt service requirements is largely or entirely
    dependent upon the successful and timely completion of the project.  This
    rating, however, while addressing credit quality subsequent to completion,
    makes no comment on the likelihood of, or the risk of default upon failure
    of, such completion.  Accordingly, the investor should exercise his own
    judgment with respect to such likelihood and risk. 

    Moody's Investors Service, Inc.

              A brief description of the applicable Moody's Investors Service,
    Inc.'s rating symbols and their meanings is as follows: 

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

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

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

              Baa --  Bonds which are rated Baa are considered as medium grade
    obligations, i.e., they are neither highly protected nor poorly secured. 
    Interest payments and principal security appear adequate for the present
    but certain protective elements may be lacking or may be
    characteristically unreliable over any great length of time.  Such bonds
    lack outstanding investment characteristics and in fact have speculative
    characteristics as well. 
              Those bonds in the A and Baa group which Moody's believes
    possess the strongest investment attributes are designated by the symbol
    A 1 and Baa 1.  Other A bonds comprise the balance of the group.  These
    rankings (1) designate the bonds which offer the maximum in security
    within their quality group, (2) designate bonds which can be bought for
    possible upgrading in quality and (3) additionally afford the investor an
    opportunity to gauge more precisely the relative attractiveness of
    offerings in the market place. 

              Moody's applies numerical modifiers, 1, 2, and 3 in each generic
    rating classification from Aa through B in its corporate bond rating
    system.  The modifier 1 indicates that the security ranks in the higher
    end of its generic rating category; the modifier 2 indicates a mid-range
    ranking; and the modifier 3 indicates that the issue ranks in the lower
    end of its generic rating category. 

              Con-Bonds for which the security depends upon the completion of
    some act or the fulfillment of some condition are rated conditionally. 
    These are debt obligations secured by (a) earnings of projects under
    construction, (b) earnings of projects unseasoned in operating experience,
    (c) rentals which begin when facilities are completed, or (d) payments to
    which some other limiting condition attaches.  Rating denotes probable
    credit stature upon completion of construction or elimination of basis of
    condition. 


    <PAGE>
                      FOR USE WITH MUNICIPAL SECURITIES TRUST
                                    SERIES 1-25
                             1st-34th DISCOUNT SERIES


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


            AUTHORIZATION FOR INVESTMENT IN MUNICIPAL SECURITIES TRUST

                       TRP PLAN - TOTAL REINVESTMENT PLAN

    I hereby elect to participate in the TRP Plan and am the owner of _____
    units of Series ___/___ Discount Series.

    I hereby authorize The Bank of New York, Trustee, to pay all semi-annual
    or annual distributions of interest and principal (if any) with respect to
    such units to The Bank of New York, as TRP Plan Agent, who shall
    immediately invest the distributions in units of the available series of
    Municipal Securities Trust. 


    The foregoing authorization is subject in        Date ______________, 19__
    all respects to the terms and conditions of
    participation set forth in the prospectus
    relating to such available series. 


    ____________________________________         ___________________________
    Registered Holder (print)                    Registered Holder (print)


    _____________________________________        ____________________________
    Registered Holder Signature                  Registered Holder Signature
    (Two signatures if joint tenancy)


    My Brokerage Firm's Name                                                  

    Street Address                                                            

    City, State & Zip Code                                                    

    Salesman's Name ___________________________  Salesman's No.               


        UNIT HOLDERS NEED ONLY DATE AND SIGN THIS FORM AND MAIL THIS CARD. 


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


                                Mail to your Broker
                                        or
                               The Bank of New York
                                101 Barclay Street
                             New York, New York  10286

    <PAGE>
                      FOR USE WITH MUNICIPAL SECURITIES TRUST
                                   SERIES 26-44
                             35th-72nd DISCOUNT SERIES


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


            AUTHORIZATION FOR INVESTMENT IN MUNICIPAL SECURITIES TRUST

                        TRP PLAN - TOTAL REINVESTMENT PLAN


    I hereby elect to participate in the TRP Plan and am the owner of _____
    units of Series ___/___ Discount Series.

    I hereby authorize the United States Trust Company of New York, Trustee,
    to pay all semi-annual or annual distributions of interest and principal
    (if any) with respect to such units to the United States Trust Company of
    New York, as TRP Plan Agent, who shall immediately invest the
    distributions in units of the available series of Municipal Securities
    Trust. 


    The foregoing authorization is subject in        Date ______________, 19__
    all respects to the terms and conditions of
    participation set forth in the prospectus
    relating to such available series. 


    ___________________________________________                               
    Registered Holder (print)                    Registered Holder (print)


    ___________________________________________                               
    Registered Holder Signature                  Registered Holder Signature
                                          (Two signatures if joint tenancy)


    My Brokerage Firm's Name                                                  

    Street Address                                                            

    City, State & Zip Code                                                    

    Salesman's Name ___________________________  Salesman's No.               


        UNIT HOLDERS NEED ONLY DATE AND SIGN THIS FORM AND MAIL THIS CARD. 


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


                                Mail to your Broker
                                        or
                      United States Trust Company of New York
                          Attn:  UIT Reinvestment Unit A
                                   770 Broadway
                             New York, New York  10003


    <PAGE>

                           
                         INDEX                       MUNICIPAL SECURITIES TRUST
                                                      (Unit Investment Trust)
                                                             Prospectus
     Title                                   Page
                                                      Dated:  October 28, 1994
     Summary of Essential Information  . . .  A-4
     Information Regarding the Trust . . . .  A-6             Sponsor:
     Financial and Statistical Information .  A-7
     Audit and Financial Information                  Bear, Stearns & Co. Inc.
       Report of Independent Accountants . .  F-1         245 Park Avenue
       Statements of Net Assets  . . . . . .  F-2    New York, New York  10167
       Statements of Operations  . . . . . .  F-3           212-272-2500
       Statements of Changes in Net Assets .  F-4
       Notes to Financial Statements . . . .  F-5             Trustee:
       Portfolio . . . . . . . . . . . . . .  F-7
     The Trust . . . . . . . . . . . . . . .    1   United States Trust Company
     Public Offering . . . . . . . . . . . .    7           of New York
     Estimated Long Term Return and                         770 Broadway
       Estimated Current Return  . . . . . .    8    New York, New York  10003
     Rights of Certificateholders  . . . . .    9          1-800-428-8890
     Tax Status  . . . . . . . . . . . . . .   11                 
     Liquidity . . . . . . . . . . . . . . .   15                or
     Total Reinvestment Plan . . . . . . . .   17
     Trust Administration  . . . . . . . . .   21       The Bank of New York
     Trust Expenses and Charges  . . . . . .   25        101 Barclay Street
     Exchange Privilege and Conversion Offer   26    New York, New York  10286
     Other Matters . . . . . . . . . . . . .   30          1-800-431-8002
     Description of Bond Ratings . . . . . .   30
                                                             Evaluator:

     Parts A and B of this Prospectus do not            Kenny S&P Evaluation
     contain all of the information set forth in              Services
     the registration statement and exhibits                65 Broadway
     relating thereto, filed with the Securities     New York, New York  10006
     and Exchange Commission, Washington, D.C.,
     under the Securities Act of 1933, and to
     which reference is made. 

                       *   *   *


               This Prospectus does not constitute an offer to sell, or a
    solicitation of an offer to buy, securities in any state to any person to
    whom it is not lawful to make such offer in such state. 

                                     *   *   *

               No person is authorized to give any information or to make any
    representations not contained in Parts A and B of this Prospectus; and any
    information or representation not contained herein must not be relied upon
    as having been authorized by the Trust, the Trustee, the Evaluator, or the
    Sponsor.  The Trust is registered as a unit investment trust under the
    Investment Company Act of 1940.  Such registration does not imply that the
    Trust or any of its Units have been guaranteed, sponsored, recommended or
    approved by the United States or any state or any agency or officer
    thereof. 

</MODULE CONTENT>
[/DOCUMENT]


</DOCUMENT

                                      PART II

                        ADDITIONAL INFORMATION NOT REQUIRED
                                   IN PROSPECTUS

                        CONTENTS OF REGISTRATION STATEMENT


    This Post-Effective Amendment to the Registration Statements on Form S-6
    comprises the following papers and documents: 

    The facing sheet on Form S-6. 
    The Cross-Reference Sheet. 
    The Prospectus consisting of     pages. 
    Signatures. 
    Consent of Independent Auditors. 
    Consent of Counsel (included in Exhibit 99.3.1). 
    Consents of the Evaluator including Confirmation of Ratings (included in
      Exhibit 99.5.1).

    The following exhibits: 

    99.1.1      -- Reference Trust Agreement including certain Amendments
                   to the Trust Indenture and Agreement referred to under
                   Exhibit 1.1.1 below (filed as Exhibit 1.1 to Amendments
                   No. 1 to Form S-6 Registration Statements Nos. 33-21647,
                   33-24031 and 33-25127 of Municipal Securities Trust,
                   Series 38 & 66th Discount Series, Series 39 & 67th Discount
                   Series and Series 40 & 68th Discount Series, respectively,
                   on July 21, 1988, October 13, 1988 and December 15, 1988,
                   respectively, and incorporated herein by reference). 

    99.1.1.1    -- Trust Indenture and Agreement for Municipal Securities
                   Trust, Series 26 and Subsequent Series (filed as
                   Exhibit 1.1.1 to Amendment No. 1 to Form S-6 Registration
                   Statement No. 33-21346 of Municipal Securities Trust, 65th
                   Discount Series on May 5, 1988 and incorporated herein by
                   reference).
       
    99.1.3.4    -- Certificate of Incorporation of Bear, Stearns & Co. Inc.,
                   as amended (filed as Exhibit 99.1.3.4 to Form S-6
                   Registration Statement Nos. 33-50891 and 33-50901 of
                   Insured Municipal Securities Trust, New York Navigator
                   Insured Series 15 and New Jersey Navigator Insured Series
                   11; and Municipal Securities Trust, Multi-State Series 44,
                   respectively, on December 9, 1993 and incorporated herein
                   by reference).

    99.1.3.5    -- By-Laws of Bear, Stearns & Co. Inc., as amended (filed as
                   Exhibit 99.1.3.5 to Form S-6 Registration Statement Nos.
                   33-50891 and 33-50901 of Insured Municipal Securities
                   Trust, New York Navigator Insured Series 15 and New Jersey
                   Navigator Insured Series 11; and Municipal Securities
                   Trust, Multi-State Series 44, respectively, on December 9,
                   1993 and incorporated herein by reference).
        
    99.1.4      -- Form of Agreement Among Underwriters (filed as Exhibit 1.4
                   to Amendment No. 1 to Form S-6 Registration Statement
                   No. 33-10963 Municipal Securities Trust, Series 36 & 53rd
                   Discount Series on January 8, 1987 and incorporated herein
                   by reference). 

    99.2.1      -- Form of Certificates (filed as Exhibit 2.1 to Amendment
                   No. 1 to Form S-6 Registration Statement No. 33-11274 of
                   Municipal Securities Trust, 54th Discount Series on
                   February 5, 1987 and incorporated herein by reference).

    <PAGE>
    99.3.1      -- Opinion of Berger Steingut Tarnoff & Stern (formerly Berger
                   & Steingut) (formerly Baskin and Steingut, P.C.) (formerly
                   Baskin and Sears, P.C.) as to the legality of the
                   securities being registered including their consent to the
                   filing thereof and to the use of their name under the
                   heading "Legal Opinions" in the Prospectus (filed as
                   Exhibit 3.1 to Amendments No. 1 to Form S-6 Registration
                   Statements Nos. 33-21647, 33-24031 and 33-25127 of
                   Municipal Securities Trust, Series 38 & 66th Discount
                   Series, Series 39 & 67th Discount Series and Series 40 &
                   68th Discount Series, respectively, on July 21, 1988,
                   October 13, 1988 and December 15, 1988, respectively, and
                   incorporated herein by reference).

    
   99.3.1.2     -- Opinion of Battle Fowler as to tax status of securities
                   being registered including their consent to the filing
                   thereof and to the use of their name under the heading "Tax
                   Status" in the Prospectus (filed as Exhibit 3.1.2 to Post-
                   Effective Amendment No. 1 to Registration Statements
                   Nos. 33-21647, 33-24031 and 33-25127 of Municipal
                   Securities Trust, Series 38 & 66th Discount Series,
                   Series 39 & 67th Discount Series and Series 40 & 68th
                   Discount Series, respectively, on October 31, 1989 and
                   incorporated herein by reference).

    
   *99.5.1      -- Consents of the Evaluator including Confirmation of
                   Ratings. 

    99.6.0      -- Power of Attorney of Bear, Stearns & Co. Inc., the
                   Depositor, by its Officers and a majority of its Directors
                   (filed as Exhibit 6.0 to Post-Effective Amendment No. 8 to
                   Form S-6 Registration Statements Nos. 2-92113, 2-92660,
                   2-93073, 2-93884 and 2-94545 of Municipal Securities Trust,
                   Multi-State Series 4, 5, 6, 7 and 8, respectively on
                   October 30, 1992 and incorporated herein by reference).
       
    *27         -- Financial Data Schedule(s) (for EDGAR filing only).
        
    *    Being filed by this Amendment.

    <PAGE>
                                    SIGNATURES
       
            Pursuant to the requirements of the Securities Act of 1933, the
    registrants, Municipal Securities Trust, Series 38 & 66th Discount Series,
    Series 39 & 67th Discount Series and Series 40 & 68th Discount Series,
    certify that they have met all of the requirements for effectiveness of
    this Post-Effective Amendment to the Registration Statements pursuant to
    Rule 485(b) under the Securities Act of 1933.  The registrants have duly
    caused this Post-Effective Amendment to the Registration Statements to be
    signed on their behalf by the undersigned thereunto duly authorized, in
    the City of New York and State of New York on the 28th day of October,
    1994. 
        
         MUNICIPAL SECURITIES TRUST, SERIES 38 & 66th DISCOUNT SERIES,
         SERIES 39 & 67th DISCOUNT SERIES and SERIES 40 & 68th DISCOUNT SERIES
                (Registrants)

         BEAR, STEARNS & CO. INC.
                (Depositor)

         By:    /s/ PETER J. DeMARCO  
                Peter J. DeMarco
                (Authorized Signatory)

            Pursuant to the requirements of the Securities Act of 1933, this
    Post-Effective Amendment to the Registration Statement has been signed
    below by the following persons, who constitute the officers and a majority
    of the directors of Bear, Stearns & Co. Inc., the Depositor, in the
    capacities and on the dates indicated. 

       
    <TABLE> 
     <S>                     <C>                                    <C> 
     Name                    Title                                  Date

     ALAN C. GREENBERG       Chairman of the Board,             )
                             Director and Senior Managing       )
                             Director                           )
     JAMES E. CAYNE          President, Chief Executive         )
                             Officer, Director and Senior       )   October 28, 1994
                             Managing Director                  )
     JOHN C. SITES, JR.      Executive Vice President, Director )
                             and Senior Managing Director       )
     MICHAEL L. TARNOPOL     Executive Vice President, Director )
     VINCENT J. MATTONE      and Senior Managing Director       )   By:PETER J. DeMARCO 
                             Executive Vice President, Director )      Attorney-in-Fact
     ALAN D. SCHWARTZ        and Senior Managing Director       )
                             Executive Vice President, Director )
     DOUGLAS P.C. NATION     and Senior Managing Director       )
                             Director and Senior Managing       )
     WILLIAM J. MONTGORIS    Director                           )
                             Chief Operating Officer,           )
                             Chief Financial Officer, Senior    )
                             Vice President-Finance and Senior  )
     KENNETH L. EDLOW        Managing Director                  )
                             Secretary and Senior Managing      )
     MICHAEL MINIKES         Director                           )
                             Treasurer and Senior Managing      )
     MICHAEL J. ABATEMARCO   Director                           )
                             Controller, Assistant Secretary    )
     MARK E. LEHMAN          and Senior Managing Director       )
                             Senior Vice President - General    )
                             Counsel and Senior Managing        )
     FREDERICK B. CASEY      Director                           )
                             Assistant Treasurer and Senior     )
                             Managing Director                  )
        
    </TABLE>
    _______________

    *    An executed power of attorney was filed as Exhibit 6.0 to Post-
         Effective Amendment No. 8 to registration Statements Nos. 2-92113,
         2-92660, 2-93073, 2-93884 and 2-94545 on October 30, 1992.

    <PAGE>

CONSENT OF INDEPENDENT AUDITORS



We consent to the use in these Post-Effective Amendments to the Registration 
Statements of our reports on the financial statements of Municipal Securities 
Trust, Series 38; Municipal Securities Trust, Series 39; Municipal Securities 
Trust, Series 40; Municipal Securities Trust, 66th Discount Series; Municipal 
Securities Trust, 67th Discount Series; and Municipal Securities Trust, 68th 
Discount Series included herein and to the reference to our firm under the 
heading "Independent Auditors" in the Prospectus which is part of this 
Registration Statement.


                 

                                                        
KPMG Peat Marwick LLP


New York, New York
October 25, 1994

    <PAGE>

                                   EXHIBIT INDEX

    Exhibit         Description                                       Page No.

    99.1.1          Reference Trust Agreement including
                    certain Amendments to the Trust Indenture
                    and Agreement referred to under
                    Exhibit 1.1.1 below (filed as Exhibit 1.1
                    to Amendments No. 1 to Form S-6
                    Registration Statements Nos. 33-21647, 33-
                    24031 and 33-25127 of Municipal Securities
                    Trust, Series 38 & 66th Discount Series,
                    Series 39 & 67th Discount Series and
                    Series 40 & 68th Discount Series,
                    respectively, on July 21, 1988,
                    October 13, 1988 and December 15, 1988,
                    respectively, and incorporated herein by
                    reference). 

    99.1.1.1        Trust Indenture and Agreement for
                    Municipal Securities Trust, Series 26 and
                    Subsequent Series (filed as Exhibit 1.1.1
                    to Amendment No. 1 to Form S-6
                    Registration Statement No. 33-21346 of
                    Municipal Securities Trust, 65th Discount
                    Series on May 5, 1988 and incorporated
                    herein by reference).
       
    99.1.3.4        Certificate of Incorporation of Bear,
                    Stearns & Co. Inc., as amended (filed as
                    Exhibit 99.1.3.4 to Form S-6 Registration
                    Statement Nos. 33-50891 and 33-50901 of
                    Insured Municipal Securities Trust, New
                    York Navigator Insured Series 15 and New
                    Jersey Navigator Insured Series 11; and
                    Municipal Securities Trust, Multi-State
                    Series 44, respectively, on December 9,
                    1993 and incorporated herein by
                    reference).

    99.1.3.5        By-Laws of Bear, Stearns & Co. Inc., as
                    amended (filed as Exhibit 99.1.3.5 to Form
                    S-6 Registration Statement Nos. 33-50891
                    and 33-50901 of Insured Municipal
                    Securities Trust, New York Navigator
                    Insured Series 15 and New Jersey Navigator
                    Insured Series 11; and Municipal
                    Securities Trust, Multi-State Series 44,
                    respectively, on December 9, 1993 and
                    incorporated herein by reference).
        
    99.1.4          Form of Agreement Among Underwriters
                    (filed as Exhibit 1.4 to Amendment No. 1
                    to Form S-6 Registration Statement No. 33-
                    10963 Municipal Securities Trust,
                    Series 36 & 53rd Discount Series on
                    January 8, 1987 and incorporated herein by
                    reference).

    99.2.1          Form of Certificates (filed as Exhibit 2.1
                    to Amendment No. 1 to Form S-6
                    Registration Statement No. 33-11274 of
                    Municipal Securities Trust, 54th Discount
                    Series on February 5, 1987 and
                    incorporated herein by reference).

    99.3.1          Opinion of Berger Steingut Tarnoff & Stern
                    (formerly Berger & Steingut) (formerly
                    Baskin and Steingut, P.C.) (formerly
                    Baskin and Sears, P.C.) as to the legality
                    of the securities being registered
                    including their consent to the filing
                    thereof and to the use of their name under
                    the heading "Legal Opinions" in the
                    Prospectus (filed as Exhibit 3.1 to
                    Amendments No. 1 to Form S-6 Registration
                    Statement Nos. 33-21647, 33-24031 and 33-
                    25127 of Municipal Securities Trust,
                    Series 38 & 66th Discount Series,
                    Series 39 & 67th Discount Series and
                    Series 40 & 68th Discount Series,
                    respectively, on July 21, 1988,
                    October 13, 1988 and December 15, 1988,
                    respectively, and incorporated herein by
                    reference).

    99.3.1.2        Opinion of Battle Fowler as to tax status
                    of securities being registered including
                    their consent to the filing thereof and to
                    the use of their name under the heading
                    "Tax Status" in the Prospectus (filed as
                    Exhibit 3.1.2 to Post-Effective Amendment
                    No. 1 to Registration Statements Nos. 33-
                    21647, 33-24031 and 33-25127 of Municipal
                    Securities Trust, Series 38 & 66th
                    Discount Series, Series 39 & 67th Discount
                    Series and Series 40 & 68th Discount
                    Series, respectively, on October 31, 1989
                    and incorporated herein by reference).

    99.5.1          Consents of the Evaluator including
                    Confirmation of Ratings...................

    99.6.0          Power of Attorney of Bear, Stearns & Co.
                    Inc., the Depositor, by its Officers and a
                    majority of its Directors (filed as
                    Exhibit 6.0 to Post-Effective Amendment
                    No. 8 to Form S-6 Registration Statements
                    Nos. 2-92113, 2-92660, 2-93073, 2-93884
                    and 2-94545 of Municipal Securities Trust,
                    Multi-State Series 4, 5, 6, 7 and 8,
                    respectively on October 30, 1992 and
                    incorporated herein by reference).
       
    27              Financial Data Schedule(s) (for EDGAR
                    filing only)..............................
        

<TABLE> <S> <C>

<ARTICLE>                         6             
<LEGEND>                          The schedule contains summary financial 
                                  information extracted from the financial
                                  statements and supporting schedules as of
                                  the end of the most current period and is
                                  qualified in its entirity by reference 
                                  to such financial statements.     
</LEGEND>                                            
<CIK>                             0000832575
<NAME>                            MST, SERIES 38 AND 66TH DISCOUNT SERIES
<SERIES>
<NUMBER>                          38
<NAME>                            SERIES
       
<S>                               <C>
<FISCAL-YEAR-END>                 Jun-30-1994                              
<PERIOD-START>                    Jul-01-1993                              
<PERIOD-END>                      Jun-30-1994                              
<PERIOD-TYPE>                     YEAR                                     
<INVESTMENTS-AT-COST>             1940612                                  
<INVESTMENTS-AT-VALUE>            1930392                                  
<RECEIVABLES>                     51265                                    
<ASSETS-OTHER>                    0                                        
<OTHER-ITEMS-ASSETS>              0                                        
<TOTAL-ASSETS>                    1981657                                  
<PAYABLE-FOR-SECURITIES>          19370                                    
<SENIOR-LONG-TERM-DEBT>           0                                        
<OTHER-ITEMS-LIABILITIES>         212                                      
<TOTAL-LIABILITIES>               19582                                    
<SENIOR-EQUITY>                   0                                        
<PAID-IN-CAPITAL-COMMON>          0                                        
<SHARES-COMMON-STOCK>             1990                                     
<SHARES-COMMON-PRIOR>             1990                                     
<ACCUMULATED-NII-CURRENT>         40306                                    
<OVERDISTRIBUTION-NII>            0                                        
<ACCUMULATED-NET-GAINS>           0                                        
<OVERDISTRIBUTION-GAINS>          8623                                     
<ACCUM-APPREC-OR-DEPREC>          (10220)                                   
<NET-ASSETS>                      1962075                                  
<DIVIDEND-INCOME>                 0                                        
<INTEREST-INCOME>                 167250                                   
<OTHER-INCOME>                    0                                        
<EXPENSES-NET>                    4544                                     
<NET-INVESTMENT-INCOME>           162706                                   
<REALIZED-GAINS-CURRENT>          0                                        
<APPREC-INCREASE-CURRENT>         (120293)                                  
<NET-CHANGE-FROM-OPS>             42413                                    
<EQUALIZATION>                    0                                        
<DISTRIBUTIONS-OF-INCOME>         162733                                   
<DISTRIBUTIONS-OF-GAINS>          0                                        
<DISTRIBUTIONS-OTHER>             0                                        
<NUMBER-OF-SHARES-SOLD>           0                                        
<NUMBER-OF-SHARES-REDEEMED>       0                                        
<SHARES-REINVESTED>               0                                        
<NET-CHANGE-IN-ASSETS>            (120320)                                  
<ACCUMULATED-NII-PRIOR>           40333                                    
<ACCUMULATED-GAINS-PRIOR>         0                                        
<OVERDISTRIB-NII-PRIOR>           0                                        
<OVERDIST-NET-GAINS-PRIOR>        8623                                     
<GROSS-ADVISORY-FEES>             0                                        
<INTEREST-EXPENSE>                0                                        
<GROSS-EXPENSE>                   0       
<AVERAGE-NET-ASSETS>              2022235                                        
<PER-SHARE-NAV-BEGIN>             1046.43                                  
<PER-SHARE-NII>                   82.48                                    
<PER-SHARE-GAIN-APPREC>           0                                     
<PER-SHARE-DIVIDEND>              82.31                                    
<PER-SHARE-DISTRIBUTIONS>         0                                     
<RETURNS-OF-CAPITAL>              0                                        
<PER-SHARE-NAV-END>               985.97                                   
<EXPENSE-RATIO>                   0                                        
<AVG-DEBT-OUTSTANDING>            0                                        
<AVG-DEBT-PER-SHARE>              0                                     
        

</TABLE>

<TABLE> <S> <C>

<ARTICLE>                         6     
<LEGEND>                          The schedule contains summary financial
                                  information extracted from the financial
                                  statements and supporting schedules as of
                                  the end of the most current period and is
                                  qualified in its entirity by reference 
                                  to such financial statements.     
</LEGEND>                              
<CIK>                             0000832575
<NAME>                            MST, SERIES 38 AND 66TH DISCOUNT SERIES
<SERIES>
<NUMBER>                          66
<NAME>                            DISCOUNT
       
<S>                               <C>
<FISCAL-YEAR-END>                 Jun-30-1994                              
<PERIOD-START>                    Jul-01-1993                              
<PERIOD-END>                      Jun-30-1994                              
<PERIOD-TYPE>                     YEAR                                     
<INVESTMENTS-AT-COST>             5372705                                  
<INVESTMENTS-AT-VALUE>            5127004                                  
<RECEIVABLES>                     145428                                   
<ASSETS-OTHER>                    0                                        
<OTHER-ITEMS-ASSETS>              0                                        
<TOTAL-ASSETS>                    5272432                                  
<PAYABLE-FOR-SECURITIES>          19119                                    
<SENIOR-LONG-TERM-DEBT>           0                                        
<OTHER-ITEMS-LIABILITIES>         466                                      
<TOTAL-LIABILITIES>               19585                                    
<SENIOR-EQUITY>                   0                                        
<PAID-IN-CAPITAL-COMMON>          0                                        
<SHARES-COMMON-STOCK>             9990                                     
<SHARES-COMMON-PRIOR>             10000                                    
<ACCUMULATED-NII-CURRENT>         190194                                   
<OVERDISTRIBUTION-NII>            0                                        
<ACCUMULATED-NET-GAINS>           23                                       
<OVERDISTRIBUTION-GAINS>          0                                        
<ACCUM-APPREC-OR-DEPREC>          (245701)                                  
<NET-ASSETS>                      5252847                                  
<DIVIDEND-INCOME>                 0                                        
<INTEREST-INCOME>                 455950                                   
<OTHER-INCOME>                    20982                                    
<EXPENSES-NET>                    13733                                    
<NET-INVESTMENT-INCOME>           463199                                   
<REALIZED-GAINS-CURRENT>          (3334)                                    
<APPREC-INCREASE-CURRENT>         (264570)                                  
<NET-CHANGE-FROM-OPS>             195295                                   
<EQUALIZATION>                    0                                        
<DISTRIBUTIONS-OF-INCOME>         441470                                  
<DISTRIBUTIONS-OF-GAINS>          92257                                    
<DISTRIBUTIONS-OTHER>             0                                        
<NUMBER-OF-SHARES-SOLD>           0                                        
<NUMBER-OF-SHARES-REDEEMED>       10                                       
<SHARES-REINVESTED>               0                                        
<NET-CHANGE-IN-ASSETS>            (338432)                                  
<ACCUMULATED-NII-PRIOR>           207598                                   
<ACCUMULATED-GAINS-PRIOR>         27                                       
<OVERDISTRIB-NII-PRIOR>           0                                        
<OVERDIST-NET-GAINS-PRIOR>        0                                        
<GROSS-ADVISORY-FEES>             0                                        
<INTEREST-EXPENSE>                0                                        
<GROSS-EXPENSE>                   0       
<AVERAGE-NET-ASSETS>              5422063                                        
<PER-SHARE-NAV-BEGIN>             559.13                                   
<PER-SHARE-NII>                   44.75                                    
<PER-SHARE-GAIN-APPREC>           0                                     
<PER-SHARE-DIVIDEND>              45.07                                    
<PER-SHARE-DISTRIBUTIONS>         8.71                                     
<RETURNS-OF-CAPITAL>              0                                        
<PER-SHARE-NAV-END>               525.81                                   
<EXPENSE-RATIO>                   0                                        
<AVG-DEBT-OUTSTANDING>            0                                        
<AVG-DEBT-PER-SHARE>              0                                     
        

</TABLE>

<TABLE> <S> <C>

<ARTICLE>                         6 
<LEGEND>                          The schedule contains summary financial
                                  information extracted from the financial
                                  statements and supporting schedules as of
                                  the end of the most current period and is
                                  qualified in its entirity by reference 
                                  to such financial statements.   
</LEGEND>                                                                  
<CIK>                             0000838541
<NAME>                            MST, SERIES 39 AND 67TH DISCOUNT SERIES
<SERIES>
<NUMBER>                          39
<NAME>                            DISCOUNT
       
<S>                               <C>
<FISCAL-YEAR-END>                 Jun-30-1994                              
<PERIOD-START>                    Jul-01-1993                              
<PERIOD-END>                      Jun-30-1994                              
<PERIOD-TYPE>                     YEAR                                     
<INVESTMENTS-AT-COST>             2332128                                  
<INVESTMENTS-AT-VALUE>            2299400                                  
<RECEIVABLES>                     62446                                    
<ASSETS-OTHER>                    0                                        
<OTHER-ITEMS-ASSETS>              0                                        
<TOTAL-ASSETS>                    2361846                                  
<PAYABLE-FOR-SECURITIES>          14904                                    
<SENIOR-LONG-TERM-DEBT>           0                                        
<OTHER-ITEMS-LIABILITIES>         165                                      
<TOTAL-LIABILITIES>               15069                                    
<SENIOR-EQUITY>                   0                                        
<PAID-IN-CAPITAL-COMMON>          0                                        
<SHARES-COMMON-STOCK>             2495                                     
<SHARES-COMMON-PRIOR>             2500                                     
<ACCUMULATED-NII-CURRENT>         50061                                    
<OVERDISTRIBUTION-NII>            0                                        
<ACCUMULATED-NET-GAINS>           0                                        
<OVERDISTRIBUTION-GAINS>          2684                                     
<ACCUM-APPREC-OR-DEPREC>          (32728)                                   
<NET-ASSETS>                      2346777                                  
<DIVIDEND-INCOME>                 0                                        
<INTEREST-INCOME>                 195250                                   
<OTHER-INCOME>                    0                                        
<EXPENSES-NET>                    5072                                     
<NET-INVESTMENT-INCOME>           190178                                   
<REALIZED-GAINS-CURRENT>          0                                        
<APPREC-INCREASE-CURRENT>         (128430)                                  
<NET-CHANGE-FROM-OPS>             61748                                    
<EQUALIZATION>                    0                                        
<DISTRIBUTIONS-OF-INCOME>         190152                                   
<DISTRIBUTIONS-OF-GAINS>          4912                                   
<DISTRIBUTIONS-OTHER>             0                                        
<NUMBER-OF-SHARES-SOLD>           0                                        
<NUMBER-OF-SHARES-REDEEMED>       5                                        
<SHARES-REINVESTED>               0                                        
<NET-CHANGE-IN-ASSETS>            (133316)                                  
<ACCUMULATED-NII-PRIOR>           50035                                    
<ACCUMULATED-GAINS-PRIOR>         2228                                     
<OVERDISTRIB-NII-PRIOR>           0                                        
<OVERDIST-NET-GAINS-PRIOR>        0                                        
<GROSS-ADVISORY-FEES>             0                                        
<INTEREST-EXPENSE>                0                                        
<GROSS-EXPENSE>                   0       
<AVERAGE-NET-ASSETS>              2413435                                        
<PER-SHARE-NAV-BEGIN>             992.04                                   
<PER-SHARE-NII>                   76.91                                    
<PER-SHARE-GAIN-APPREC>           0                                     
<PER-SHARE-DIVIDEND>              0                                     
<PER-SHARE-DISTRIBUTIONS>         0                                     
<RETURNS-OF-CAPITAL>              0                                        
<PER-SHARE-NAV-END>               940.59                                   
<EXPENSE-RATIO>                   0                                        
<AVG-DEBT-OUTSTANDING>            0                                        
<AVG-DEBT-PER-SHARE>              0                                     
        

</TABLE>

<TABLE> <S> <C>

<ARTICLE>                         6                      
<LEGEND>                          The schedule contains summary financial
                                  information extracted from the financial
                                  statements and supporting schedules as of
                                  the end of the most current period and is
                                  qualified in its entirity by reference 
                                  to such financial statements.     
</LEGEND>                                                    
<CIK>                             0000838541
<NAME>                            MST, SERIES 39 AND 67TH DISCOUNT SERIES
<SERIES>
<NUMBER>                          67
<NAME>                            DISCOUNT
       
<S>                               <C>
<FISCAL-YEAR-END>                 Jun-30-1994                              
<PERIOD-START>                    Jul-01-1993                              
<PERIOD-END>                      Jun-30-1994                              
<PERIOD-TYPE>                     YEAR                                     
<INVESTMENTS-AT-COST>             4559788                                  
<INVESTMENTS-AT-VALUE>            4395379                                  
<RECEIVABLES>                     104239                                   
<ASSETS-OTHER>                    1931                                     
<OTHER-ITEMS-ASSETS>              0                                        
<TOTAL-ASSETS>                    4501549                                  
<PAYABLE-FOR-SECURITIES>          0                                        
<SENIOR-LONG-TERM-DEBT>           0                                        
<OTHER-ITEMS-LIABILITIES>         643                                      
<TOTAL-LIABILITIES>               643                                      
<SENIOR-EQUITY>                   0                                        
<PAID-IN-CAPITAL-COMMON>          0                                        
<SHARES-COMMON-STOCK>             9000                                     
<SHARES-COMMON-PRIOR>             9000                                     
<ACCUMULATED-NII-CURRENT>         146882                                   
<OVERDISTRIBUTION-NII>            0                                        
<ACCUMULATED-NET-GAINS>           83                                       
<OVERDISTRIBUTION-GAINS>          0                                        
<ACCUM-APPREC-OR-DEPREC>          (164409)                                  
<NET-ASSETS>                      4500906                                  
<DIVIDEND-INCOME>                 0                                        
<INTEREST-INCOME>                 380127                                   
<OTHER-INCOME>                    14410                                    
<EXPENSES-NET>                    12428                                    
<NET-INVESTMENT-INCOME>           382109                                   
<REALIZED-GAINS-CURRENT>          (18410)                                   
<APPREC-INCREASE-CURRENT>         (162971)                                  
<NET-CHANGE-FROM-OPS>             200728                                   
<EQUALIZATION>                    0                                        
<DISTRIBUTIONS-OF-INCOME>         368733                                   
<DISTRIBUTIONS-OF-GAINS>          335160                                   
<DISTRIBUTIONS-OTHER>             0                                        
<NUMBER-OF-SHARES-SOLD>           0                                        
<NUMBER-OF-SHARES-REDEEMED>       0                                        
<SHARES-REINVESTED>               0                                        
<NET-CHANGE-IN-ASSETS>            (503165)                                  
<ACCUMULATED-NII-PRIOR>           161173                                   
<ACCUMULATED-GAINS-PRIOR>         17439                                    
<OVERDISTRIB-NII-PRIOR>           0                                        
<OVERDIST-NET-GAINS-PRIOR>        0                                        
<GROSS-ADVISORY-FEES>             0                                        
<INTEREST-EXPENSE>                0                                        
<GROSS-EXPENSE>                   0       
<AVERAGE-NET-ASSETS>              4752489                                        
<PER-SHARE-NAV-BEGIN>             556.01                                   
<PER-SHARE-NII>                   41.32                                    
<PER-SHARE-GAIN-APPREC>           0                                     
<PER-SHARE-DIVIDEND>              43.05                                    
<PER-SHARE-DISTRIBUTIONS>         37.24                                    
<RETURNS-OF-CAPITAL>              0                                        
<PER-SHARE-NAV-END>               500.10                                   
<EXPENSE-RATIO>                   0                                        
<AVG-DEBT-OUTSTANDING>            0                                        
<AVG-DEBT-PER-SHARE>              0                                     
        

</TABLE>

<TABLE> <S> <C>

<ARTICLE>                         6               
<LEGEND>                          The schedule contains summary financial
                                  information extracted from the financial
                                  statements and supporting schedules as of
                                  the end of the most current period and is
                                  qualified in its entirity by reference   
                                  to such financial statements.     
</LEGEND>                                                
<CIK>                             0000841718
<NAME>                            MST, SERIES 40 AND 68TH DISCOUNT SERIES
<SERIES>
<NUMBER>                          40
<NAME>                            SERIES
       
<S>                               <C>
<FISCAL-YEAR-END>                 Jun-30-1994                              
<PERIOD-START>                    Jul-01-1993                              
<PERIOD-END>                      Jun-30-1994                              
<PERIOD-TYPE>                     YEAR                                     
<INVESTMENTS-AT-COST>             3581195                                  
<INVESTMENTS-AT-VALUE>            3539869                                  
<RECEIVABLES>                     64086                                    
<ASSETS-OTHER>                    13569                                    
<OTHER-ITEMS-ASSETS>              0                                        
<TOTAL-ASSETS>                    3617524                                  
<PAYABLE-FOR-SECURITIES>          0                                        
<SENIOR-LONG-TERM-DEBT>           0                                        
<OTHER-ITEMS-LIABILITIES>         336                                      
<TOTAL-LIABILITIES>               336                                      
<SENIOR-EQUITY>                   0                                        
<PAID-IN-CAPITAL-COMMON>          0                                        
<SHARES-COMMON-STOCK>             4000                                     
<SHARES-COMMON-PRIOR>             4000                                     
<ACCUMULATED-NII-CURRENT>         77287                                    
<OVERDISTRIBUTION-NII>            0                                        
<ACCUMULATED-NET-GAINS>           32                                       
<OVERDISTRIBUTION-GAINS>          0                                        
<ACCUM-APPREC-OR-DEPREC>          (41326)                                   
<NET-ASSETS>                      3617188                                  
<DIVIDEND-INCOME>                 0                                        
<INTEREST-INCOME>                 313393                                   
<OTHER-INCOME>                    803                                      
<EXPENSES-NET>                    7181                                     
<NET-INVESTMENT-INCOME>           307015                                   
<REALIZED-GAINS-CURRENT>          (22187)                                   
<APPREC-INCREASE-CURRENT>         (214923)                                  
<NET-CHANGE-FROM-OPS>             69905                                    
<EQUALIZATION>                    0                                        
<DISTRIBUTIONS-OF-INCOME>         307782                                   
<DISTRIBUTIONS-OF-GAINS>          163440                                   
<DISTRIBUTIONS-OTHER>             0                                        
<NUMBER-OF-SHARES-SOLD>           0                                        
<NUMBER-OF-SHARES-REDEEMED>       0                                        
<SHARES-REINVESTED>               0                                        
<NET-CHANGE-IN-ASSETS>            (401317)                                  
<ACCUMULATED-NII-PRIOR>           81915                                    
<ACCUMULATED-GAINS-PRIOR>         0                                        
<OVERDISTRIB-NII-PRIOR>           0                                        
<OVERDIST-NET-GAINS-PRIOR>        0                                        
<GROSS-ADVISORY-FEES>             0                                        
<INTEREST-EXPENSE>                0                                        
<GROSS-EXPENSE>                   0       
<AVERAGE-NET-ASSETS>              3817847                                       
<PER-SHARE-NAV-BEGIN>             1004.63                                  
<PER-SHARE-NII>                   74.42                                    
<PER-SHARE-GAIN-APPREC>           0                                     
<PER-SHARE-DIVIDEND>              78.44                                    
<PER-SHARE-DISTRIBUTIONS>         40.86                                    
<RETURNS-OF-CAPITAL>              0                                        
<PER-SHARE-NAV-END>               904.30                                   
<EXPENSE-RATIO>                   0                                        
<AVG-DEBT-OUTSTANDING>            0                                        
<AVG-DEBT-PER-SHARE>              0                                     
        

</TABLE>

<TABLE> <S> <C>

<ARTICLE>                         6
<LEGEND>                          The schedule contains summary financial
                                  information extracted from the financial
                                  statements and supporting schedules as of
                                  the end of the most current period and is
                                  qualified in its entirity by reference
                                  to such financial statements. 
</LEGEND>                                             
<CIK>                             0000841718
<NAME>                            MST, SERIES 40 AND 68TH DISCOUNT SERIES
<SERIES>
<NUMBER>                          68
<NAME>                            DISCOUNT
       
<S>                               <C>
<FISCAL-YEAR-END>                 Jun-30-1994                              
<PERIOD-START>                    Jul-31-1993                              
<PERIOD-END>                      Jun-30-1994                              
<PERIOD-TYPE>                     YEAR                                     
<INVESTMENTS-AT-COST>             6402042                                  
<INVESTMENTS-AT-VALUE>            6006110                                  
<RECEIVABLES>                     102292                                   
<ASSETS-OTHER>                    72168                                    
<OTHER-ITEMS-ASSETS>              0                                        
<TOTAL-ASSETS>                    6180570                                  
<PAYABLE-FOR-SECURITIES>          0                                        
<SENIOR-LONG-TERM-DEBT>           0                                        
<OTHER-ITEMS-LIABILITIES>         564                                      
<TOTAL-LIABILITIES>               564                                      
<SENIOR-EQUITY>                   0                                        
<PAID-IN-CAPITAL-COMMON>          0                                        
<SHARES-COMMON-STOCK>             11988                                    
<SHARES-COMMON-PRIOR>             11995                                    
<ACCUMULATED-NII-CURRENT>         173854                                   
<OVERDISTRIBUTION-NII>            0                                        
<ACCUMULATED-NET-GAINS>           42                                       
<OVERDISTRIBUTION-GAINS>          0                                        
<ACCUM-APPREC-OR-DEPREC>          (395932)                                  
<NET-ASSETS>                      6180006                                  
<DIVIDEND-INCOME>                 0                                        
<INTEREST-INCOME>                 559522                                   
<OTHER-INCOME>                    9274                                     
<EXPENSES-NET>                    12398                                    
<NET-INVESTMENT-INCOME>           556398                                   
<REALIZED-GAINS-CURRENT>          (47417)                                   
<APPREC-INCREASE-CURRENT>         (286643)                                  
<NET-CHANGE-FROM-OPS>             222338                                   
<EQUALIZATION>                    0                                        
<DISTRIBUTIONS-OF-INCOME>         552477                                   
<DISTRIBUTIONS-OF-GAINS>          544507                                   
<DISTRIBUTIONS-OTHER>             0                                        
<NUMBER-OF-SHARES-SOLD>           0                                        
<NUMBER-OF-SHARES-REDEEMED>       7                                        
<SHARES-REINVESTED>               0                                        
<NET-CHANGE-IN-ASSETS>            (874646)                                  
<ACCUMULATED-NII-PRIOR>           214537                                   
<ACCUMULATED-GAINS-PRIOR>         0                                        
<OVERDISTRIB-NII-PRIOR>           0                                        
<OVERDIST-NET-GAINS-PRIOR>        2778                                     
<GROSS-ADVISORY-FEES>             0                                        
<INTEREST-EXPENSE>                0                                        
<GROSS-EXPENSE>                   0       
<AVERAGE-NET-ASSETS>              6617329                                        
<PER-SHARE-NAV-BEGIN>             588.13                                   
<PER-SHARE-NII>                   45.95                                    
<PER-SHARE-GAIN-APPREC>           0                                     
<PER-SHARE-DIVIDEND>              47.98                                    
<PER-SHARE-DISTRIBUTIONS>         45.10                                    
<RETURNS-OF-CAPITAL>              0                                        
<PER-SHARE-NAV-END>               515.52                                   
<EXPENSE-RATIO>                   0                                        
<AVG-DEBT-OUTSTANDING>            0                                        
<AVG-DEBT-PER-SHARE>              0                                     
                  

</TABLE>


    KENNY S&P EVALUATION SERVICES
    A Division of Kenny Information Systems, Inc.

    65 Broadway
    New York, New York 10006-2511
    Telephone 212/770-4440
    Fax: 212/797-8681

    John R. Fitzgerald
    Vice President


                                  October 28, 1994

    Bear, Stearns & Co., Inc.
    245 Park Avenue
    New York, NY 10167

              RE:  Municipal Securities Trust
                   Series 38 and 66th Discount Series


    Gentlemen:

               We  have examined the post-effective Amendment to  the
    Registration  Statement File No. 33-21647 for the above-captioned
    trust.  We hereby acknowledge that Kenny S&P Evaluation Services,
    a division of Kenny Information Systems, Inc. is currently acting
    as  the evaluator for the trust.  We hereby consent to the use in
    the  Amendment of the reference to Kenny S&P Evaluation Services,
    a division of Kenny Information Systems, Inc. as evaluator.

               In  addition,  we  hereby  confirm  that  the  ratings
    indicated  in  the above-referenced Amendment to the Registration
    Statement for the respective bonds comprising the trust portfolio
    are the ratings currently indicated in our KENNYBASE database.

              You are hereby authorized to file a copy of this letter
    with the Securities and Exchange Commission.

                                  Sincerely,



                                  John R. Fitzgerald

    JRF/cns
    <PAGE>
    KENNY S&P EVALUATION SERVICES
    A Division of Kenny Information Systems, Inc.

    65 Broadway
    New York, New York 10006-2511
    Telephone 212/770-4440
    Fax: 212/797-8681

    John R. Fitzgerald
    Vice President


                                  October 28, 1994

    Bear, Stearns & Co., Inc.
    245 Park Avenue
    New York, NY 10167


              RE:  Municipal Securities Trust
                   Series 39 and 67th Discount Series


    Gentlemen:

               We  have examined the post-effective Amendment to  the
    Registration  Statement File No. 33-24031 for the above-captioned
    trust.  We hereby acknowledge that Kenny S&P Evaluation Services,
    a division of Kenny Information Systems, Inc. is currently acting
    as  the evaluator for the trust.  We hereby consent to the use in
    the  Amendment of the reference to Kenny S&P Evaluation Services,
    a division of Kenny Information Systems, Inc. as evaluator.

               In  addition,  we  hereby  confirm  that  the  ratings
    indicated  in  the above-referenced Amendment to the Registration
    Statement for the respective bonds comprising the trust portfolio
    are the ratings currently indicated in our KENNYBASE database.

              You are hereby authorized to file a copy of this letter
    with the Securities and Exchange Commission.

                                  Sincerely,



                                  John R. Fitzgerald

    JRF/cns
    <PAGE>
    KENNY S&P EVALUATION SERVICES
    A Division of Kenny Information Systems, Inc.

    65 Broadway
    New York, New York 10006-2511
    Telephone 212/770-4440
    Fax: 212/797-8681

    John R. Fitzgerald
    Vice President


                                  October 28, 1994

    Bear, Stearns & Co., Inc.
    245 Park Avenue
    New York, NY 10167


              RE:  Municipal Securities Trust
                   Series 40 and 68th Discount Series


    Gentlemen:

               We  have examined the post-effective Amendment to  the
    Registration  Statement File No. 33-25127 for the above-captioned
    trust.  We hereby acknowledge that Kenny S&P Evaluation Services,
    a division of Kenny Information Systems, Inc. is currently acting
    as  the evaluator for the trust.  We hereby consent to the use in
    the  Amendment of the reference to Kenny S&P Evaluation Services,
    a division of Kenny Information Systems, Inc. as evaluator.

               In  addition,  we  hereby  confirm  that  the  ratings
    indicated  in  the above-referenced Amendment to the Registration
    Statement for the respective bonds comprising the trust portfolio
    are the ratings currently indicated in our KENNYBASE database.

              You are hereby authorized to file a copy of this letter
    with the Securities and Exchange Commission.

                                  Sincerely,



                                  John R. Fitzgerald

    JRF/cns
    <PAGE>




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