MUNICIPAL BOND FUND SERIES 42
485B24E, 1996-05-07
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                                                     File No. 2-59679
                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549
                         POST EFFECTIVE AMENDMENT NO. 19
                                       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:
      THE MUNICIPAL BOND FUND, SERIES 42
  B.  Name of Depositor:
      PAINEWEBBER INCORPORATED
  C.  Complete address of Depositor's principal executive office:
      PAINEWEBBER INCORPORATED
      1285 Avenue of the Americas
      New York, New York 10019
  D.  Name and complete address of agents for service:
      PAINEWEBBER INCORPORATED
      Attention: Mr. Robert E. Holley
      1200 Harbor Blvd.
      Weehawken, New Jersey 07087
  (x) Check if it is proposed that this filing should become effective        
      (immediately upon filing or on MAY 7, 1996) pursuant to paragraph       
      (b) of Rule 485.                                                        
  E.  Total and amount of securities being registered:                        
      7,625 Units                                                             
  F.  Proposed maximum offering price to the public of the securities being   
      registered:                                                             
      $2,475,990.00*                                                          
  *   Estimated solely for the purpose of calculating the registration fee, at
      $324.72 per unit.                                                       
  G.  Amount of filing fee, computed at one-twenty-ninth of 1 percent of the
      proposed maximum aggregate offering price to the public:
      $100.00*
  H.  Approximate date of proposed sale to public:
      AS SOON AS PRACTICABLE AFTER THE EFFECTIVE DATE OF THE
      REGISTRATION STATEMENT.
  *   The method of calculation is made pursuant to Rule 24e-2 under the      
      Investment Company Act of 1940.The total amount of units redeemed or    
      repurchased during the previous fiscal year ending 1995 is 6,732. There 
      have been no previous filings of post-effective amendments during the   
      current fiscal year 6,732 redeemed or repurchased units are being used  
      to reduce the filing fee for this amendment.                            
    
                       THE MUNICIPAL BOND FUND, SERIES 42
                              Cross Reference Sheet
                     Pursuant to Rule 404(c) of Regulation C
                        under the Securities Act of 1933
                  (Form N-8B-2 Items required by Instruction 1
                          as to Prospectus on 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
        (b)Title of securities issued   )
  2.    Name and address of             )  Back Cover
        Depositor
  3.    Name and address of             )  Back Cover
        Trustee
  4.    Name and address of             )  Back Cover
        Principal
        Underwriter                     )
  5.    Organization of Trust           )  Nature of Trust
  6.    Execution and                   )  Nature of Trust
        termination of
        Trust Agreement                 )  Termination of the Trust
  7.    Changes of name                 )  *
  8.    Fiscal Year                     )  *
  9.    Litigation                      )  *
     II.       General Description of the Trust and Securities of the Trust
  10.   General Information             )  The Trust Portfolio
        regarding
        Trust's Securities and          )  Rights of Certificate-
        Rights
        of Holders                      )  holders
  (a)   Type of Securities              )  Nature of Trust
        (Registered or Bearer)          )
  (b)   Type of Securities              )  Nature of Trust
        (Registered or Bearer)          )
  *   Not applicable, answer negative or not required.
  (c)   Rights of Holders as to         )  Rights of Certificate-
        Withdrawal or                   )  holders
        Redemption
                                        )  Redemption of Units by
                                        )  the Trustee
                                        )  The Municipal Bond Trust
                                        )  Reinvestment Program
  (d)   Rights of Holders as to         )  Secondary Market for
        conversion, transfer, etc.      )  Units Exchange Option
  (e)   Rights of Trust issues          )
        periodic payment plan           )  *
        certificates                    )
  (f)   Voting rights as to             )  Rights of Certificate-
        Securi-
        ties, under the Indenture       )  holders
  (g)   Notice to Holders as to         )
        change in                       )
        (1)Assets of Trust              )  Amendment of the
                                           Indenture
        (2)Terms and Conditions         )  Supervision of Trust
           of Trust's Securities        )  Investments
        (3)Provisions of Trust          )  Amendment of the
                                           Indenture
        (4)Identity of Depositor        )  Administration of the and
                                           Trustee
                                        )  Trust
 
  (h)   Consent of Security             )
        Holders
        required to change              )
        (1)Composition of assets        )  Amendment of the
                                           Indenture
           of Trust                     )
        (2)Terms and conditions         )  Amendment of the
                                           Indenture
           of Trust's Securities        )
        (3)Provisions of Indenture      )  Amendment of the
                                           Indenture
        (4)Identity of Depositor        )  Administration of the Trust
           and Trustee                  )
  (i)   Other provisions                )  The Trust-Part B
  11.   Type of Securities              )  Front Cover-The Trust-
        Comprising Units                   Portfolio
  12.   Type of securities              )  *
        comprising
        periodic payment                )
        certificates
  13.   (a)Load, fees, expenses, etc.   )  Public Offering Price of
                                        )  Units; Expenses of the
                                        )  Trust
  *   Not applicable, answer negative or not required.
        (b)Certain information          )  *
           regarding periodic payment   )  *
           certificates                 )
        (c)Certain percentages          )  *
        (d)Certain other fees, etc.     )  Expenses of the Trust
        payable by holders              )
        (e)Certain profits receivable   )  Public Offering Price of
           by depositor, principal      )  Units
           underwriters, trustee or     )  Public Offering of Units
           affiliated persons           )
        (f)Ratio of annual charges to   )  *
           income                       )
  14.   Issuance of Trust's             )  Nature of the Trust
        securities
                                        )  Public Offering of Units
  15.   Receipt and handling of         )  *
        payments from                   )
        purchasers
  16.   Acquisition and                 )  Acquisition of Securities
        disposition of
        underlying securities           )  for the Trust; Supervision
                                        )  of Trust Investments.
  17.   Withdrawal or                   )  Redemption of Units
        redemption
                                        )  by Trustee
  18.   (a)Receipt and disposition of   )  Distributions of Certifi-
           income                       )  cateholders
        (b)Reinvestment of distritions  )  *
        (c)Reserves or special fund     )  Distributions to Certifi-
                                        )  cateholders
        (d)Schedule of distribution     )  *
  19.   Records, accounts and           )  Statements to Certificate-
        report
                                        )  holders; Administration
                                        )  of the Trust
  20.   Certain miscellaneous           )  Administration of the Trust
        pro-
        visions of Trust                )
        agreement
 
  21.   Loans to security               )  *
        holders
  22.   Limitations on liability        )  Limitation of Liabilities
  23.   Bonding arrangements            )  Included in Form N-8B-2
  24.   Other material                  )  *
        provisions of
        trust agreement                 )
  *   Not applicable, answer negative or not required.
 
                     III.        Organization Personnel and
                            Affiliated Persons of Depositor
  25.   Organization of                 )  Sponsor
        Depositor
  26.   Fees received by                )  Public Offering Price of
        Depositor
                                        )  Units Expenses of the Trust
  27.   Business of Depositor           )  Sponsor
  28.   Certain information as to       )  Sponsor
        officials and affiliated        )
        persons of Depositor            )
  29.   Voting securities of            )  *
        Depositor
  30.   Persons controlling             )  Sponsor
        Depositor
  31.   Payments by Depositor           )  *
        for
        certain other services          )
        rendered to Trust               )
  32.   Payments 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 certian services            )
        rendered
        to Trust                        )
              IV.        Distribution and Redemption of Securities
  35.   Distribution of Trust's         )  Public Offering of Units
        securities by states            )
  36.   Suspension of sales of          )  *
        Trust's
        securities                      )
  37.   Revocation of authority         )  *
        to
        distribute                      )
  38.   (a)Method of distribution       )  Public Offering of Units
        (b)Underwriting agreements      )
        (c)Selling agreements           )
  *   Not applicable, answer negative or not required.
  39.   (a)Organization of principal    )  Sponsor
           underwriter                  )
        (b)N.A.S.D. membership of       )  Sponsor
           principal underwriter        )
  40.   Certain fees received by        )  Public Offering Price of
        principal underwriter           )  Units
  41.   (a)Business of principal        )  Sponsor
           underwriter                  )
        (b)Branch officers of           )  *
           principal underwriter        )
        (c)Salesman of principal        )  *
           underwriter                  )
  42.   Ownership of Trust's            )  *
        securities
        by certain persons              )
  43.   Certain brokerage               )  *
        commissions
 
        received by principal           )
        underwriter                     )
  44.   (a)Method of valuation          )  Public Offering Price of
                                        )  Units
        (b)Schedule as to offering      )  *
           price                        )
        (c)Variation in Offering        )  Public Offering Price of
           price to certain persons     )  Units
  45.   Suspension of                   )  *
        redemption rights
  46.   (a)Redemption valuation         )  Redemption of Units by
                                        )  Trustee
        (b)Schedule as to redemption    )  *
           price                        )
            V.        Information concerning the Trustee or Custodian
  47.   Maintenance of position         )  Secondary Market for Units
        in
        underlying securities           )  Redemption of Units by
                                        )  Trustee
                                        )  Evaluation of the Trust
  48.   Organization and                )  Administration of the Trust
        regulation of
        Trustee                         )  Trustee
  49.   Fees and expenses of            )  Expenses of the Trust
        Trustee
  50.   Trustee's lien                  )  Expenses of the Trust
  *   Not applicable, answer negative or not required.
 
      VI.        Information concerning Insurance of Holders of Securities
  51.   (a)Name and address of          )  *
        Insurance Company               )
        (b)Type of policies             )  *
        (c)Type of risks insured and    )  *
           excluded                     )
        (d)Coverage of policies         )  *
        (e)Beneficiaries of policies    )  *
        (f)Terms and manner of          )  *
           cancellation                 )
        (g)Method of determining        )  *
           premiums                     )
        (h)Amount of aggregate          )  *
           premiums paid                )
        (i)Who receives any part of     )  *
           premiums                     )
        (j)Other material provisions    )  *
           of the Trust relating to     )
           insurance                    )
                         VII.       Policy of Registrant
  52.   (a)Method of selecting and      )  Acquisition of Securities
           eliminating securities       )  for the Trust
           from the Trust               )
        (b)Elimination of securities    )  *
           from the Trust               )
        (c)Policy of Trust regarding    )  Supervision of Trust
           substitution and             )  Investments
           elimination of securities    )
        (d)Description of any funda-    )  Acquisition of Securities
           mental policy of the Trust   )  for the Trust
                                        )  Supervision of Trust
                                        )  Investments
  53.   (a)Taxable status of the        )  Tax status of the Trust
           Trust                        )
        (b)Qualification of the Trust   )  Tax status of the Trust
           as a mutual investment       )
           company                      )
  *   Not applicable, answer negative or not required.
 
                VIII.       Financial and Statistical Information
  54.   Information regarding           )  *
        the
        Trust's past ten fiscal         )
        years
  55.   Certain information             )  *
        regarding
        periodic payment plan           )
        certificates                    )
  56.   Certain information             )  *
        regarding
        periodic payment plan           )
        certificates                    )
  57.   Certain information             )  *
        regarding
        periodic payment plan           )
        certificates                    )
  58.   Certain information             )  *
        regarding
        periodic payment plan           )
        certi-
        ficates                         )
  59.   Financial statements            )  Statement of Financial
        (Instruction 1(c) to            )  Condition
        Form S-6)
  *   Not applicable, answer negative or not required.
   
               THE MUNICIPAL BOND FUND
                 SERIES 42

This Prospectus consists of two parts. Part A 
contains Essential Information Regarding the 
Trust including descriptive material relating to 
the Trust, Financial Statements of the Trust, and 
a Schedule of Investments. Part B contains 
general information about the Trust.  Part A may 
not be distributed unless accompanied by Part B.


Interest income to the Trust and to 
Certificateholders is excludable, in the opinion 
of counsel, from gross             9,626
income for present Federal income tax purposes 
under existing law, but may be subject to state 
and                 UNITS
local taxation. Capital gains, if any, are 
subject to tax.


THE INITIAL PUBLIC OFFERING OF UNITS IN THE TRUST 
HAS BEEN COMPLETED. THE UNITS OFFERED HEREBY ARE 
ISSUED AND OUTSTANDING UNITS WHICH HAVE BEEN 
ACQUIRED BY THE SPONSOR EITHER BY PURCHASE FROM 
THE TRUSTEE OF UNITS TENDERED FOR REDEMPTION OR 
IN THE SECONDARY MARKET.


THE OBJECTIVES OF THE MUNICIPAL BOND FUND, SERIES 
42--The Municipal Bond Fund, Series 42 (the 
"Fund" or the "Trust") is a unit investment 
trust formed for the purpose of gaining Federally 
tax-exempt interest income consistent with the 
preservation of capital and diversification of 
risk through investment in a fixed portfolio of 
"investment grade" (as of the Date of Deposit) 
interest-bearing municipal bonds (the "Bonds"). 
The payment of interest and the preservation of 
capital is dependent upon the continuing ability 
of the respective issuers of such Bonds to meet 
their obligations. Since PaineWebber Incorporated 
(the "Sponsor") and The Chase Manhattan Bank, 
N.A. (the "Trustee") do not have control over the 
source of payment of the Bonds, they cannot 
guarantee that the objectives of the Trust will 
be achieved. Each Unit at the date hereof 
represents 1/9,626th fractional undivided 
interest in the $3,080,000 principal amount of 
bonds and net income of the Trust in the ratio of 
1 Unit for each $319.97 par value of Bonds in the 
Trust. (See "Nature of Trust" in Part B). The 
aggregate market value, based on the bid side of 
the market, of the Bonds in the Trust was, as of 
February 1, 1996, $3,216,809.

PUBLIC OFFERING PRICE--The Public Offering Price 
of Units is equal to the aggregate of the bid 
prices of the underlying Bonds divided by the 
number of Units outstanding plus a sales charge 
of up to 5.82% of the net amount invested (5.50% 
of the Public Offering Price). Units are offered 
at the Public Offering Price plus accrued 
interest. (See "Public Offering Price of Units" 
and "Secondary Market for Units" in Part B).

MARKET FOR UNITS--Although under no obligation to 
do so, the Sponsor intends to maintain a market 
for Units at prices based on the aggregate bid 
price of the Bonds in the Trust. If such market 
is terminated, a Certificateholder may be able to 
dispose of his Units only through redemption. 
(See "Secondary Market for Units" and "Redemption 
of Units by Trustee" in Part B).

DISTRIBUTIONS--Distributions of interest received 
by the Trust, less expenses, will be made on a 
monthly basis unless the Certificateholder elects 
to receive interest on a quarterly or semi-annual 
basis. Distribution of principal, if any, will be 
made on a semi-annual or more frequent basis. See 
"Essential Information" in Part A and 
"Distributions to Certificateholders" in Part B 
for details of optional interest distributions.

ESTIMATED CURRENT RETURN--The Estimated Current 
Return per Unit is determined by dividing the net 
annual interest income per Unit by the Public 
Offering Price per Unit. Any change in either 
amount will result in a change in Estimated 
Current Return. (See "Estimated Current Return 
per Unit" in Part B).

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



SPONSOR:

 PaineWebber
   Incorporated

      Read and retain both parts of this 
prospectus for future reference.


Prospectus Part A dated May 7, 1996


ESSENTIAL INFORMATION REGARDING THE FUND
Securities in the Trust Portfolio
 The Trust consists of the Securities indicated 
under "Schedule of Investments", all 
undistributed interest received or accrued on the 
Securities, and any undistributed cash realized 
from the sale, redemption or other disposition of 
the Securities. The Trust portfolio consists of 
10 issues of Bonds by issuers located in 8 states 
of the United States. All of the Bonds in the 
Fund were, as of the Date of Deposit, "investment 
grade" municipal bonds.
 On February 1, 1996, the aggregate market value 
of the Securities in the Fund, based on the bid 
side of the market, was $3,216,809.
 All ten issues of Bonds in the Fund are revenue 
bonds payable from revenues derived by the 
issuers, and while income to pay such Bonds may 
be derived from more than one source, the primary 
source of such income, along with the number of 
issues of the Trust portfolio deriving income 
from such source are as follows: 1 Airport 
facility; 1 Health and Hospital facility; 1 
Housing facility; 5 Escrowed to Maturity; 1 
Transportation facility and 1 Refunded Bond. The 
Trust may be considered "concentrated" in the 
following categories of Bonds:
                           Percentage of
                           Aggregate    
                           Market Value 
                           of Trust     
Category of Bond           Portfolio    
Escrowed to Maturity       53%          


See "Summary of Portfolio" contained in Part B 
for a summary of the Investment risks associated 
with the Securities contained in the Trust.

Ratings
 On the Date of Deposit, all of the Bonds were 
rated a minimum of A by Standard & Poor's 
Corporation or Moody's Investors Service, Inc. 
The ratings may have changed and may continue to 
change after the Date of Deposit. On February 1, 
1996, the percentage of the total aggregate 
market value of bonds in the portfolio in each 
rating category was as follows: AAA, 35%; AA, 
11%; A, 32%; Aaa (Moody's), 15%; A (Moody's), 6%; 
and NR, 1%. (See "Summary of Portfolio" and "Bond 
Ratings" in Part B and "Schedule of Investments" 
in Part A).
    
Tax Status of the Trust
 At the time of issuance of the Securities, 
opinions regarding the validity of such 
Securities and the exemption from federal income 
tax of interest on such Securities were rendered 
by bond counsel to the respective issuers. Except 
in certain instances in which Orrick, Herrington 
& Sutcliffe acted as bond counsel to issuers of 
Securities, neither the Sponsor, the Trustee, nor 
counsel to either has made any review of the 
proceedings relating to the issuance of the 
Securities or the basis for such opinions. In the 
case of certain Securities in the Trust, the 
opinions of bond counsel indicate that interest 
on such obligations received by a "substantial 
user" of the facilities being financed with the 
proceeds of such obligations, or "related 
person," for periods such obligations are held by 
such "substantial user" or "related person," will 
not be exempt from federal income tax. Interest 
income attributable to such Securities received 
by a Unitholder who is a "substantial user" or 
"related person" may be taxable to such 
Unitholder.
 In the opinion of Orrick, Herrington & 
Sutcliffe, counsel to the Sponsor, under existing 
law:
 1. The Trust is not an association taxable as a 
corporation for Federal income tax purposes. 
Under the Internal Revenue Code of 1986, as 
amended (the "Code"), each holder of a 
certificate of ownership (a "Certificateholder") 
will be treated as the owner of a pro rata 
portion of the Trust, and income of the Trust 
will be treated as income of the 
Certificateholders. Interest on Securities in the 
Trust that is excludable from gross income for 
federal income tax purposes when received by the 
Trust will retain its status as excludable when 
distributed to Certificateholders, except that no 
opinion is expressed regarding the character of 
interest on any Security in the case of any 
Certificateholder who is a "related person" or a 
"substantial user", both as defined in Code 
Section 147(a).
 2. Each Certificateholder will have a taxable 
event when the Trust disposes of a Security 
(whether by sale, exchange, redemption, or 
payment at maturity), or when the 
Certificateholder redeems or sells its 
Certificates. For purposes of determining gain or 
loss, the total tax cost of each Unit to a 
Certificateholder is allocated among each of the 
Securities in accordance with the proportion of 
the Trust comprised by each Security, to 
determine the Certificateholder's per Unit tax 
cost for each Security. Further, the tax cost 
reduction requirements of the Code relating to 
amortization of bond premium will apply 
separately to the per Unit tax cost of each 
Security.
 3. The Trust is not an association taxable as a 
corporation for New York State income tax 
purposes. Under New York State law, each 
Certificateholder will be treated as the owner of 
a pro rata portion of the Trust, and income of 
the Trust will be treated as income of the 
Certificateholders. Interest on Securities in the 
Trust that is exempt from personal income tax 
under New York State law when received by the 
Trust will retain its tax-exempt status when 
distributed to Certificateholders.

Additional Tax Considerations
 Recognition of Gain.  The Code, by virtue of the 
Tax Reform Act of 1986, effects a substantial 
reduction in the number of income tax brackets 
and rate levels for individuals and corporations 
and adversely modifies the preferential treatment 
accorded the net gain from the sale or exchange 
of capital assets. The maximum rate for net 
capital gain of individuals in 1987 is limited to 
28%. Net capital gain recognized by corporations 
after 1986 and by individuals after 1987 will be 
taxed at the same tax rates applicable to 
ordinary income.
 As a result of the tax cost reduction 
requirements of the Code relating to amortization 
of bond premium, under certain circumstances 
Unitholders may realize a taxable gain upon 
disposition of Units even though such Units are 
sold or redeemed for an amount equal to or less 
than their original cost.
 Original Issue Discount and Market Discount.  
The portfolio may contain Securities originally 
issued at a discount ("original issue discount"). 
In general, original issue discount is defined as 
the difference between the price at which a bond 
is issued and its stated redemption price at 
maturity. With respect to tax-exempt obligations 
issued on or before September 3, 1982, original 
issue discount is deemed to accrue (be "earned") 
as tax-exempt interest ratably over the life of 
the obligations and is apportioned among the 
original holder of the obligation and subsequent 
purchasers in accordance with a ratio the 
numerator of which is the number of calendar days 
the obligation is owned by the holder and the 
denominator of which is the total number of 
calendar days from the date of issuance of the 
obligation to its maturity date. With respect to 
tax-exempt obligations issued after September 3, 
1982, original issue discount is deemed earned in 
a geometric progression over the life of the 
obligations, taking into account the semi-annual 
compounding of accrued interest, resulting in an 
increasing amount of interest in each year.
 In general, if a Unitholder acquires a pro rata 
interest in a Security for a price that is less 
than its stated redemption price at maturity (or 
less than the original issue price plus accrued 
original issue discount, if such Security was 
issued with original issue discount), such pro 
rata interest will be treated as having been 
purchased at a "market discount". If gain is 
realized upon the sale or other disposition of 
such pro rata interest, the market discount will 
constitute taxable gain. Such gain generally will 
be long-term capital gain to Unitholders, other 
than dealers in securities and certain financial 
institutions, if the Securities are held by the 
Trust for more than six months and such 
Unitholders have held their Units for more than 
one year.
 Interest on Borrowed Funds. Interest paid on 
funds borrowed to purchase or carry units of a 
unit investment trust that distributes tax-exempt 
interest income during a tax year is not 
deductible. Under rules of 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.
 Social Security Benefits. Code Section 86 
provides that a portion of social security 
benefits received after December 31, 1983, are 
includible in taxable income for taxpayers whose 
"modified adjusted gross income", combined with 
50% of their social security 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. Under Code Section 86, interest 
on tax-exempt bonds is to be added to adjusted 
gross income for purposes of determining whether 
an individual's income exceeds the base amount 
above which a portion of the benefits would be 
subject to tax. The amount of social security 
benefits that could be includible in taxable 
income would be the lesser of one-half of the 
benefits or one-half of the excess of the 
taxpayer's combined income (modified adjusted 
gross income plus one-half of benefits) over the 
base amount.
 Tax Reform Act of 1986--Effects on Tax-Exempt 
Interest. The Tax Reform Act of 1986, among other 
items, provided for the following: (1) Effective 
for taxable years beginning after December 
31,1986, the alternative minimum tax rate for 
individuals is increased to 21%, and the interest 
on certain Private Activity Bonds issued after 
August 7, 1986 is included in the calculation of 
the individual alternative minimum tax. Each 
Security in the Trust received or will receive an 
opinion of bond counsel to the effect that it is 
not a Private Activity Bond the interest on which 
is subject to the alternative minimum tax. (2) 
Effective for taxable years beginning after 
December 31, 1986, the alternative minimum tax 
rate for corporations is increased from 15% to 
20%, and for purposes of this tax, interest on 
certain Private Activity Bonds issued after 
August 7, 1986, and 50% of the excess of a 
corporation's net book income (adjusted) over its 
alternative minimum taxable income (adjusted) are 
classified as tax preference items. Net book 
income includes interest on all tax-exempt bonds, 
such as the Securities. In taxable years 
beginning after 1989, the use of adjusted net 
book income in determining such alternative 
minimum tax is to be replaced by the use of 
adjusted current earnings, and 75% of the amount 
by which adjusted current earnings exceed 
alternative minimum taxable income, as modified 
for this calculation, will be included in 
alternative minimum taxable income. Interest on 
the Securities is includible in the adjusted net 
book income and adjusted current earnings of a 
corporation for purposes of such alternative 
minimum tax. The Tax Reform Act of 1986 does not 
otherwise require corporations, and does not 
require taxpayers other than corporations, 
including individuals, to treat interest on the 
Securities as an item of tax preference in 
computing alternative minimum tax. (3) Subject to 
certain exceptions, financial institutions may 
not deduct that portion of the institution's 
interest expense allocable to tax-exempt interest 
on tax-exempt bonds acquired after August 7, 
1986. (4) The amount of the deduction allowed to 
property and casualty insurance companies for 
underwriting loss is decreased by an amount 
determined with regard to tax-exempt interest 
income and the deductible portion of dividends 
received by such companies, effective for taxable 
years beginning after December 31, 1986. (5) All 
taxpayers are required to report for 
informational purposes on their federal income 
tax returns the amount of tax-exempt interest 
they receive, effective for taxable years 
beginning after December 31, 1986. (6) An issuer 
must meet certain requirements on a continuing 
basis in order for interest on a tax-exempt bond 
to be tax exempt; failure to meet such 
requirements results in loss of tax exemption. 
(7) For taxable years beginning after December 
31, 1986, a branch profits tax is imposed on the 
U.S. branches of foreign corporations which, 
because of the manner in which the branch profits 
tax is calculated, may have the effect of 
subjecting the U.S. branch of a foreign 
corporation to federal income tax on the interest 
on bonds otherwise exempt from such tax.
 The Tax Reform Act of 1986 also significantly 
curtailed a taxpayer's ability to offset income 
with deductions and losses. In general, a lower 
overall rate of income taxation could make tax-
exempt bonds less attractive to investors and 
could decrease the value of tax-exempt Securities 
held by the Trust, while the limitations on the 
ability to offset taxable income may have the 
opposite effect. In addition, certain "S 
Corporations" may have a tax imposed on passive 
income including tax-exempt interest, such as 
interest on the Securities.
 Alternative Minimum Tax. Interest on the 
Securities in the Trust is not treated as a 
preference item for purposes of calculating the 
individual and corporate alternative minimum tax. 
However, the Code provides that for taxable years 
1988 and 1989, 50% (75% for taxable years 
beginning after 1989) of the excess of a 
corporation's adjusted net book income over its 
adjusted alternative minimum taxable income will 
be treated as a preference item in the 
calculation of alternative minimum taxable 
income. For taxable years beginning after 1989, 
the use of adjusted net book income will be 
replaced by the use of adjusted current earnings. 
The adjusted net book income and adjusted current 
earnings of a corporation include the amount of 
any income received that is otherwise exempt from 
tax, such as interest on the Securities.
 Superfund Revenue Act of 1986. The Superfund 
Revenue Act of 1986 (the "Superfund Act") imposed 
a deductible, broad-based tax on a corporation's 
alternative minimum taxable income (before net 
operating losses and any deduction for the tax) 
at a rate of $12 per $10,000 (0.12%) of 
alternative minimum taxable income in excess of 
$2,000,000. The tax is imposed for tax years 
beginning after 1986 and beginning before 1992. 
The tax is imposed even if the corporation pays 
no alternative minimum tax. For purposes of the 
Superfund Act, alternative minimum taxable income 
includes interest on all tax-exempt bonds to the 
same extent and in the same manner as does the 
Tax Reform Act of 1986. The Superfund Act does 
not impose an alternative minimum tax on 
taxpayers other than corporations.
 Branch Profits Tax. The Code provides that 
interest on exempt obligations such as the 
Securities is included in effectively connected 
earnings and profits for purposes of computing 
the branch profits tax on certain foreign 
corporations doing business in the United States.
 Property and Casualty Companies. The Code 
contains provisions relating to property and 
casualty companies whereunder the amount of 
certain loss deductions otherwise allowed is 
reduced (in certain cases below zero) by a 
specified percentage of, among other things, 
interest on tax-exempt obligations acquired after 
August 7, 1986.
 Financial Institutions. The Code provides that 
commercial banks, thrift institutions and other 
financial institutions may not deduct the portion 
of their interest expense allocable to tax-exempt 
obligations after August 7, 1986 (other than 
certain "qualified" obligations). The Securities 
are not qualified for this purpose.
 S Corporations. The Code imposes a tax on excess 
net passive income of certain S corporations that 
have subchapter C earnings and profits. Passive 
investment income includes interest on tax-exempt 
obligations.
 Information Reporting. All taxpayers are 
required to report for informational purposes on 
their federal income tax returns the amount of 
tax-exempt interest they receive.
 Future Legislation. Various proposals have been 
introduced before Congress from time to time to 
restrict or eliminate the federal income tax 
exemption for interest on municipal securities 
such as those deposited in the Trust. Such 
proposals may be introduced in the future. The 
Sponsor cannot predict what additional 
legislation, if any, may be proposed with respect 
to the tax-exempt status of interest on municipal 
securities, nor can it predict whether any 
legislation, if enacted, would apply to 
Securities in the Trust.
 State Tax. The exemption from gross income of 
interest on municipal bonds for federal income 
tax purposes does not necessarily result in an 
exemption under the income tax laws of any state 
or local government. The laws of the several 
states vary with respect to the taxation of 
municipal bonds, and Unitholders are advised to 
consult with their tax advisors regarding such 
taxation.

Trustee
 The Trustee is The Chase Manhattan Bank, N.A. 
(formerly, United States Trust Company of New 
York), 770 Broadway, New York, New York 10003. 
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.
   
ESSENTIAL INFORMATION REGARDING THE TRUST
AS OF FEBRUARY 1, 1996

Date of Deposit and of Trust Indenture and Agreement
December 7, 1977

Principal amount of Bonds in Trust
$3,080,000

Number of Units Outstanding
9,626

Minimum Purchase
1 Unit

Fractional undivided interest in Trust represented
by each Unit
1/9,626th

Public Offering Price
Aggregate Bid Price of Bonds in Trust   $3,210,158 *~
Divided By 9,626 Units                  $333.49 *~
Plus Sales Charge of
3.20% of Public Offering Price          11.04
Public Offering Price per Unit          $344.53 *~



Redemption Value per Unit
$333.49 *~

Excess of Public Offering Price per Unit over
Redemption Value Per Unit
$11.04

Sponsor's Repurchase Price per Unit
$333.49 *~

Excess of Public Offering Price per Unit over
Sponsor's Repurchase Price Per Unit
$11.04

Minimum Principal Distribution
No distribution need be made from Principal
Account if balance in Account is less than $20,000.

Evaluation Time
4 P.M. New York Time

Mandatory Termination Date * *
January 1, 2027

Discretionary Termination
Indenture may be terminated if value of Trust is
less than $4,000,000.







<TABLE>
INFORMATION BASED UPON INTEREST DISTRIBUTION PLAN
<CAPTION>


                                                                                     
                                                                      Monthly        
                                                                                     
<S>                                                                   <C>            
Gross annual interest income per unit                                 $19.29         
Less estimated annual fees and expenses per unit * * * *              .81            
Estimated net annual interest income per unit                         $18.48         
Estimated interest distribution per unit                              $1.54          
Daily rate at which estimated net interest accrues per unit           $.0513         
Estimated current return * * *                                        5.36%          
Record dates                                                          1st of         
                                                                      each month     
Interest distribution dates                                           15th of        
                                                                      each month     
Trustee's annual fee per $1,000 principal amount of bonds * * * *     $1.02          
Evaluator's daily fee per bond * * * *                                .30            

 __________________

          * Plus accrued interest.
       * * The actual termination of the trust 
may be considerably earlier (see "Termination 
of the Trust" in Part B).
     * * * The estimated current return is 
increased for transactions entitled to a 
reduced sales charge (see "Public 
 Offering Price of Units" in Part B).
   * * * * See "Expenses of the Trust" in 
Part B.
          ~ Includes overdistributed principal 
funds.
</TABLE>
<TABLE>
               FINANCIAL SUMMARY


The following sets forth a summary of 
distributions and redemption values per unit 
for The Municipal Bond Fund, Series 42.
<CAPTION>
                                               
                                             DISTRIBUTIONS
               YEAR  ENDING                  PER  UNIT
<S>            <C>                           <C>
MONTHLY        February 1, 1994              $34.90
               February 1, 1995              21.49
               February 1, 1996              27.00
PRINCIPAL      February 1, 1994              215.94
               February 1, 1995              139.67
               February 1, 1996              8.70



As of December 31, 1994, 1995 and February 1, 
1996, the redemption values per unit were 
$325.67, $337.92, and $333.49 plus accrued 
interest to the respective dates.
</TABLE>
<TABLE>
                                        REPORT OF INDEPENDENT AUDITORS
<C>                                      <S>
THE CERTIFICATEHOLDERS, SPONSOR AND TRUSTEE 
THE MUNICIPAL BOND FUND, SERIES 42:

 We have audited the accompanying statement of 
financial condition, including the schedule of 
investments, of The Municipal Bond Fund, Series 
42 as of February 1, 1996 and the related 
statements of operations and changes in net 
assets for each of the three years in the period 
then ended.  These financial statements are the 
responsibility of the Trustee.  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 the securities owned as of February 1, 1996 as 
shown in the statement of financial condition and 
schedule of investments by correspondence with 
the Trustee.  An audit also includes assessing 
the accounting principles used and significant 
estimates made by the Trustee, 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 The Municipal 
Bond Fund, Series 42 at February 1, 1996 and the 
results of its operations and changes in its net 
assets for each of the three years in the period 
then ended, in conformity with generally accepted 
accounting principles.


           ERNST & YOUNG LLP


New York, New York
April 29, 1996
</TABLE>
<TABLE>
              THE MUNICIPAL BOND FUND
                 SERIES 42
           STATEMENT OF FINANCIAL CONDITION
               February 1, 1996

                  ASSETS
<S>                                                                          <C>       <C>
Investment in municipal bonds - at market value (Cost $2,924,878)                       
(note 4 to schedule of investments)                                                    $3,216,809
Accrued interest receivable                                                            34,658
Cash                                                                                   63,174
Total Assets                                                                           $3,314,641
                                                                                        


             LIABILITIES AND NET ASSETS
                                                                                        
Distribution payable (note E)                                                          $59,775
Accrued expenses payable                                                               1,013
Total Liabilities                                                                      $60,788
Net assets (9,626 units of fractional undivided interest outstanding):                  
Cost to Investors (note B)                                                 $3,095,106   
Less gross underwriting commissions (note C)                               (170,228)    
                                                                           2,924,878    
Net unrealized market appreciation of investments (note D)                 291,931      
                                                                           3,216,809    
Undistributed investment income-net                                        43,695       
Overdistributed proceeds from bonds sold or redeemed                       (6,651)      
Net Assets                                                                             3,253,853
Total Liabilities and Net Assets                                                       $3,314,641
                                                                                        
Net Asset Value Per Unit                                                               $338.03









              STATEMENT OF OPERATIONS
<CAPTION>
                                                                 Year Ended February 1,
                                                                                             
                                                                  1996         1995         1994
                                                                                             
<S>                                                               <C>          <C>          <C>
Investment Income - Interest                                      $193,030     $219,873     $366,305
                                                                                             
Less Expenses:                                                                               
Trustee's fees and expenses                                       6,191        6,209        9,111
Evaluator's fees                                                  837          930          1,169
Total expenses                                                    7,028        7,139        10,280
Investment Income-net                                             186,002      212,734      356,025
Realized and unrealized gain (loss) on investments-net:                                      
Net realized gain (loss) on securities transactions               (12,596)     4,102        13,093
Net change in unrealized market appreciation (depreciation)       152,766      (192,130)    151,194
Net gain (loss) on investments                                    140,170      (188,028)    164,287
Net increase in net assets resulting from operations              $326,172     $24,706      $520,312



See accompanying notes to financial statements.
</TABLE>
<TABLE>
              THE MUNICIPAL BOND FUND
                 SERIES 42
STATEMENT OF CHANGES IN NET ASSETS
<CAPTION>

                                                                 Year Ended February 1,
                                                                                             
                                                                  1996         1995         1994
<S>                                                               <C>          <C>          <C>
Operations:                                                                                  
Investment Income-net                                             $186,002     $212,734     $356,025
Net realized gain (loss) on securities transactions               (12,596)     4,102        13,093
Net change in unrealized market appreciation (depreciation)       152,766      (192,130)    151,194
Net increase in net assets resulting from operations              326,172      24,706       520,312
Less: Distributions to Certificateholders                                                    
Investment Income-net                                             262,968      207,077      355,518
Proceeds from securities sold or redeemed                         84,201       1,424,738    2,271,357
Total Distributions                                               347,169      1,631,815    2,626,875
Less: Units Redeemed by Certificateholders (Note F)                                          
Value of units at date of redemption                              66,017       160,821      298,531
Accrued interest at date of redemption                            1,224        5,773        6,596
Total Redemptions                                                 67,241       166,594      305,127
Decrease in net assets                                            (88,238)     (1,773,703)  (2,411,690)
Net Assets:                                                                                  
Beginning of period                                               3,342,091    5,115,794    7,527,484
End of period                                                     $3,253,853   $3,342,091   $5,115,794




See accompanying notes to financial statements.







            NOTES TO FINANCIAL STATEMENTS

               February 1, 1996

(A) The financial statements of the Trust are 
prepared on the accrual basis of accounting.  
Security transactions are   accounted for on the 
date the securities are purchased or sold.
(B) Cost to the investors represents the initial 
public offering price as of the date of deposit 
computed on the basis set 
  forth under "Public Offering Price Of Units" 
included in Part B, adjusted for bonds called or 
sold since the date of 
  deposit.
(C) The aggregate sales charge was computed on 
the basis set forth under "Public Offering Price 
of Units" included in 
      Part B.
(D) At February 1, 1996 the gross unrealized 
market appreciation was $323,561 and the gross 
unrealized market
  depreciation was ($31,630). The net unrealized 
market appreciation was $291,931.
(E) Distributions of the net investment income to 
Certificateholders are declared and paid monthly. 
See the Financial
  Summary included in Part A.
(F) The following units were redeemed with 
proceeds of bonds sold as follows:
<CAPTION>
                                                                 Year Ended February 1,
                                                                                             
                                                                  1996         1995         1994
                                                                                             
<S>                                                               <C>          <C>          <C>
Number of units redeemed                                          197          458          503
Redemption amount                                                 $67,241      $166,594     $305,127
</TABLE>
<TABLE>

THE MUNICIPAL BOND FUND, SERIES 42
Schedule of Investments as of February 1, 1996
<CAPTION>
                                                               Coupon      Redemption
       Aggregate                                               Rate/       Features(3)
Lot    Principal                                              Maturity     C-Callable        Market
No.     Amount             Description           Rating(1)     Date(5)   S.F.-Sinking Fund   Value(4)
<C>    <C>         <S>                              <C>      <C>          <C>               <C>
1.     $575,000    ORLANDO, FLORIDA, UTILITIES
                   COMMISSION, WATER AND
                   ELECTRIC BONDS OF 1971           AAA      3 1/2%       (6)               $573,080
                                                             04/01/1998   S.F.  NONE

2.     500,000     ILLINOIS HEALTH FACILITIES
                   AUTHORITY, REVENUE BONDS, 1977
                   (MACNEAL MEMORIAL HOSPITAL
                   ASSOCIATION PROJECT) (RE-
                   FUNDED)                          AAA      6 1/2%       C.08/01/01@1      557,255
                                                             08/01/2001   S.F.  NONE

3.     415,000     CITY OF WICHITA, KANSAS,
                   HOSPITAL REVENUE BONDS, SERIES
                   A, 1977 (ST. FRANCIS HOSPITAL AND
                   SCHOOL OF NURSING, INC.)         A+       6 3/4%       (6)               423,686
                                                             10/01/2007   S.F.  10/01/1999

4.     260,000     MASSACHUSETTS BAY TRANS-
                   PORTATION AUTHORITY, GENERAL
                   TRANSPORTATION SYSTEM BONDS,
                   1977 SERIES A                    A+       5 1/4%       C.03/01/96@101    254,306
                                                             03/01/2016   S.F.  NONE

5.     340,000     MINNESOTA HOUSING FINANCE
                   AGENCY, MULTI-FAMILY HOUSING
                   BONDS, SERIES 1977-A             AA+      6 3/8%       C.08/01/96@102    345,732
                                                             02/01/2020   S.F.  02/01/2009

6.     145,000     CITY OF CLEVELAND, OHIO, AIRPORT
                   SYSTEM REVENUE BONDS 1976
                   SERIES A                         A        7.00%        C.03/01/96@101    146,768
                                                             01/01/2006   S.F.  01/01/1997

7.     415,000     BLAIR COUNTY HOSPITAL AU-
                   THORITY, PENNSYLVANIA, HOSPITAL
                   REVENUE BONDS, SERIES OF 1977
                   (THE ALTOONA HOSPITAL)           Aaa(2)   6.90%        (6)               466,194
                                                             07/01/2008   S.F.  07/01/1996

8.     215,000     THE GREENVILLE HOSPITAL AU-
                   THORITY, PENNSYLVANIA HOSPITAL
                   GROSS REVENUE BONDS, SERIES
                   OF 1977 (THE GREENVILLE
                   HOSPITAL, SUBLESSEE)             A        6 3/8%       C.03/01/96@100    215,219
                                                             09/01/2004   S.F.  09/01/1996


                                                                                             (Continued)

</TABLE>
<TABLE>
THE MUNICIPAL BOND FUND, SERIES 42
Schedule of Investments as of February 1, 1996
<CAPTION>
                                                               Coupon      Redemption
       Aggregate                                               Rate/       Features(3)
Lot    Principal                                              Maturity     C-Callable        Market
No.     Amount             Description           Rating(1)     Date(5)   S.F.-Sinking Fund   Value(4)
<C>    <C>         <S>                              <C>      <C>          <C>               <C>
9.     $30,000     SCRANTON-LACKAWANNA, PENN-
                   SYLVANIA, HEALTH AND WELFARE
                   AUTHORITY, HOSPITAL REVENUE
                   BONDS (THE MOSES TAYLOR
                   HOSPITAL) SERIES OF 1977         NR       6 5/8%       (6)               $33,331
                                                             07/01/2009   S.F.  07/01/1996

10.    185,000     KNOXVILLE, TENNESSEE, COM-
                   MUNITY DEVELOPMENT CORP-
                   ORATION (SUCCESSOR TO KNOX-
                   VILLE HOUSING AUTHORITY) FIRST
                   MORTGAGE REVENUE BONDS           A(2)     8 1/4%       (6)               201,238
                                                             11/01/1998   S.F.  11/01/1996

     $3,080,000                                                                           $3,216,809

 (1) All ratings are by Standard & 
Poor's Corporation unless otherwise 
indicated.  A brief description of 
applicable rating symbols is given under 
"Bond Ratings" included in Part B.  For 
concentration of credit risk, see 
"Securities in the Trust Portfolio" in 
Part A.
 (2) Moody's Investors Service, Inc.'s 
rating.  A brief description of 
applicable rating symbols is given under 
"Bond Ratings" included in Part B.
 (3) C._Indicates the first year in 
which an issue of bonds is redeemable in 
whole, or in part, by the operation of 
the optional call provisions, and the 
redemption price for that year; unless 
otherwise indicated, each issue 
continues to be redeemable at declining 
prices thereafter but not below par.  
S.F._Indicates the next date in which 
an issue of bonds is subject to 
scheduled sinking fund redemption and 
the redemption price for that date; 
unless otherwise indicated, such issue 
of bonds is subject to scheduled sinking 
fund redemption at par.
 Bonds listed as non-callable, as well 
as those listed as callable, may also be 
redeemable at par, under certain 
circumstances, from special redemption 
payments.
       (4) The Market Value is 
determined by the Evaluator on the bid 
side of the market, on a basis identical 
to that set forth under "Public Offering 
Price of Units" included in Part B.
 (5) The Maturity Date noted for all 
Refunded Bonds is the date on which such 
Bonds have been irrevocably called for 
redemption by the issuers thereof.
 (6) Escrowed to maturity.
</TABLE>
    



              MUNICIPAL BOND TRUST
               PROSPECTUS PART B 

PART B OF THIS PROSPECTUS MAY NOT BE DISTRIBUTED
            UNLESS ACCOMPANIED BY PART A.

               NATURE OF THE TRUST
  Each series of The Municipal Bond Trust is a 
separate but similar unit investment trust, 
formed for the purpose of obtaining federally 
tax-exempt interest income consistent with the 
preservation of capital and diversification of 
risk through investment in a fixed portfolio 
comprised of "investment grade" (as of the Date 
of Deposit) interest-bearing Bonds. State Trusts 
were formed for the additional purpose of 
obtaining interest income exempt from state 
income taxes for purchasers who qualify as 
residents of the state for which each such Trust 
is named. The Sponsor and the Trustee do not have 
control over the course of payment of the 
principal of and interest on the Securities, 
therefore they cannot guarantee that the 
objectives of the Trust will be achieved. The 
interest on the Bonds, in the opinion of counsel 
to the issuers of such Bonds, is, or upon their 
issuance and delivery will be, exempt from 
present Federal income taxes. Capital gains, if 
any, will be subject to taxation.
  The portfolio of the Trust consists of 
interest-bearing Securities, issued by or on 
behalf of states, counties and municipalities 
within the United States, and authorities, 
agencies and other such political subdivisions.

              CREATION OF THE TRUST
  The Trust was created under the laws of the 
State of New York pursuant to a Trust Indenture 
and Agreement* (the "Indenture"), dated as of the 
Date of Deposit, among PaineWebber Incorporated, 
as Sponsor, the Trustee identified in Part A of 
this prospectus and Kenny Information Systems, 
Inc., a division of J.J. Kenny Co., Inc. as 
Evaluator.
  On the Date of Deposit, the Sponsor deposited 
with the Trustee the Securities or confirmations 
of contracts for the purchase of the Securities 
at prices determined by the Evaluator on the 
basis of current offering prices of the 
Securities. Confirmations of contracts for the 
purchase of the Bonds were delivered to the 
Trustee together with an irrevocable letter of 
credit drawn on a commercial bank in an amount 
sufficient for their purchase. Following the 
deposit, the Trustee delivered to the Sponsor 
registered Certificates for Units evidencing the 
entire ownership of the Trust. Each Unit 
represents a fractional undivided interest in the 
Trust in an amount equal to one divided by the 
total number of Units outstanding. On the Date of 
Deposit there was one Unit for each $1,000 face 
amount of Securities deposited in the Trust.

              SUMMARY OF PORTFOLIO
  An investment in Units of the Trust should be 
made with an understanding of the risks which an 
investment in fixed rate long-term debt 
obligations may entail, including the risk that 
the value of the Trust portfolio and hence of the 
Units will decline with increases in interest 
rates. The recent period of high inflation, 
together with the fiscal measures adopted to 
attempt to deal with it, has seen wide 
fluctuations in interest rates and thus in the 
value of fixed rate long-term debt obligations 
generally. The Sponsor cannot predict whether 
such fluctuations will continue in the future.
  As set forth under "Essential Information" and 
"Schedule of Investments" in Part A, the Trust 
may contain or be concentrated in one or more of 
the categories of Securities referred to below. 
The types of issuers and percentages of any 
concentrations for this Trust are set forth in 
Part A. These categories are described in Part B 
because an investment in Units of the Trust 
should be made with an understanding of the risks 
which these investments may entail. Part B also 
contains a description of the features of this 
Trust.

General Obligation Bonds
 General obligation debt of an issuer that is a 
political subdivision or instrumentality of a 
state is typically secured by the full faith and 
credit of the issuer, encompassing its ability to 
levy an unlimited ad valorem tax on real property 
or other revenue streams, such as sales or income 
taxes. The fiscal condition of an issuer may be 
affected by socioeconomic factors beyond the 
issuer's control (such as relocation by a major 
employer) or other unanticipated events, 
including: imposition of tax rate decreases or 
appropriations limitations by legislation or 
initiative; increased expenditures mandated by 
Federal or state law or by judicial decree; 
reduction of unrestricted federal or state aid 
and of revenue-sharing programs due to subsequent 
legislative changes in appropriations or aid 
formulas; or disallowances by the Federal or 
state governments for categorical grants. The 
fiscal condition of an issuer that is a political 
subdivision or instrumentality of a state (such 
as a county, city, school district or other 
entity providing public services) is related to 
the size and diversification of its tax and 
revenue base and to such other factors as: the 
effect of inflation on the general operating 
budget and of other costs, including salaries and 
fringe benefits, energy and solid waste disposal; 
changes in state law and statutory 
interpretations affecting traditional home rule 
powers (which vary from state to state); levels 
of unrestricted state aid or revenue-sharing 
programs and state categorical grants subject to 
annual appropriation by a state legislature; 
increased expenditures mandated by state law or 
judicial decree; and

____________
 *Reference is hereby made to said Trust 
Indenture and Agreement and any statements 
contained herein are qualified in their entirety 
by the provisions of said Trust Indenture and 
Agreement.
disallowances for expenses incurred under Federal 
or state categorical grant programs.  The local 
economy may be or become concentrated (i) in a 
single industry, which may be affected by natural 
or other disasters or by fluctuations in 
commodity prices, or (ii) in a particular 
company, the operations of which may be impaired 
due to labor disputes, relocation, bankruptcy or 
corporate take-over. Such economic factors may, 
in turn, affect local tax collections and service 
demands. The ability of an issuer to levy 
additional taxes may be subject to state 
constitutional provisions, assent of the state 
legislature or voter approval in a local 
referendum, or constrained by economic or 
political considerations.

Housing Facility Securities
  These Securities are typically secured by 
mortgage revenues derived by state housing 
finance agencies, municipal housing authorities 
or certain non-profit organizations from 
repayments on mortgage and home improvement loans 
made by such entities. Special considerations 
affecting housing securities include: the 
condition of the local housing market, 
competition from conventional mortgage lenders, 
fluctuations in interest rates, increasing 
construction costs and the ability of the 
Issuers, lenders, servicers and borrowers to 
maintain program compliance under applicable 
statutory provisions. Securities issued on or 
before April 24, 1979 are subject to few 
restrictions on the use of proceeds. Federal tax 
legislation adopted during the 1980s imposed 
progressively more restrictive requirements for 
post-issuance compliance necessary to maintain 
the tax exemption on both single family and 
multi-family housing securities. IRS regulations 
provide, however, that retroactive taxation will 
not occur if the issuer corrects any 
noncompliance occurring after the issuance of a 
security within a reasonable period after such 
noncompliance is first discovered or should have 
been discovered by the issuer. To maintain the 
security's tax exemption, the issuer may be 
required pursuant to the legal documents 
governing the Security to redeem all or a portion 
of such obligations at par from (i) unexpended 
proceeds of the issue within a stated period that 
typically does not exceed three years from the 
date of issuance of such security or (ii) 
optional prepayments by mortgagors. If the 
issuers of such securities are unable to or 
choose not to reloan these monies, they will 
generally redeem such securities at par in an 
amount approximately equal to such unexpended 
proceeds or prepayments. The Sponsor is unable to 
predict whether such redemptions will occur, or 
what effect, if any, such redemptions would have 
on any such Securities in the Trust.

Single Family Housing Securities. 
  Securities issued after April 24, 1979 and 
prior to August 15, 1986 are subject to the 
requirements of Section 103A of the Internal 
Revenue Code of 1954, as amended (the "1954 
Code"). Enacted in 1980 and subsequently amended, 
Section 103A established stringent criteria for 
the origination or assumption of mortgage loans 
and subjected Issuers to annual IRS reporting 
requirements. The Technical and Miscellaneous 
Revenue Act of 1988 may inhibit the ability of 
Issuers to make home mortgage loans after 
December 31, 1990 (and thereby increase the 
likelihood of redemptions from unexpended 
proceeds). Additional considerations include: the 
underwriting and management ability of the 
issuers, lenders and servicers (i.e., the initial 
soundness of the loan and the effective use of 
available remedies should there be a default in 
loan payments); the financial condition and 
credit rating of the private mortgage insurer 
underwriting the insurance on the underlying 
mortgage or pool of mortgages; and special risks 
attendant to lending to mortgagors, most of whom 
are first time home buyers of low or moderate 
means.  During periods of declining interest 
rates, there may be increased redemptions of 
single family housing securities from unexpended 
proceeds due to insufficient demand, because 
conventional mortgage loans may become available 
at interest rates equal to or less than the 
interest rates charged on the mortgage loans made 
available from bond proceeds. In addition, 
certain mortgage loans may be prepaid earlier 
than their maturity dates, because mortgage loans 
made with bond proceeds usually do not carry 
prepayment penalties.

Multi-Family Housing Securities. 
  Enacted in 1980, Section 103(b)(4)(A) of the 
1954 Code, among other things, required that at 
least 20% of the Units in each rental housing 
project financed pursuant to its provisions be 
occupied, in effect, by persons with low and 
moderate incomes. The 1986 Code further 
restricted the amount of bond proceeds that can 
be spent on unqualified costs in a housing 
project, and extended existing and added certain 
post-issuance compliance requirements, such as 
the low or moderate income occupancy 
requirements, the determination of income 
limitations, continuous rental requirements, 
annual current income determinations and the 
arbitrage rebate requirement. The IRS has 
undertaken a review of a representative 
statistical sample of multi-family housing bonds 
issued in 1984, primarily to determine post-
issuance compliance matters. If a bond issue is 
determined by the IRS to not be in compliance 
with the Code, income derived from such 
securities may be deemed to be taxable income. 
The Sponsor is unable to determine whether the 
IRS will expand its review, the outcome of any 
such review, or whether such review will have an 
impact on any of the Securities in the Trust. 
Authorizing state statutes may have imposed 
additional program requirements. Additional 
considerations include: increasing operating 
costs; the ability or failure to increase rental 
charges; and the financial condition of housing 
authority Issuers and their ability to meet 
certain requirements under the Section 8 program 
of the United States Housing Act of 1937, as 
amended.
 Multi-family housing securities may also be 
subject to full or partial redemption at par from 
the proceeds of the sale, assignment or 
disposition of a defaulted mortgage loan or 
acceleration of principal payments thereunder; a 
condemnation or insurance award; or a result of 
the reduction of a required reserve fund.

Airport Facilities
  Bonds in the airport facilities category are 
payable from and secured by revenues derived from 
the gross airport operating income. The major 
portion of gross airport operating income is 
generally derived from fees received from 
signatory airlines pursuant to use agreements 
which consist of annual payments for airport use, 
occupancy of certain terminal space, facilities, 
service fees, concessions and leases. Airport 
operating income may be affected by local 
economic conditions, air traffic patterns, noise 
abatement restrictions or the ability of the 
airlines to meet their obligations under the use 
agreements. The air transport industry is 
experiencing significant variations in earnings 
and traffic due to deregulation, recent 
consolidations through mergers and acquisitions, 
fair competition, excess industry capacity, 
fluctuations in fuel and other costs, traffic 
constraints and other factors. In particular, 
facilities with use agreements involving airlines 
experiencing financial difficulty may experience 
a reduction in revenue due to the possible 
inability of these airlines to meet their use 
agreement obligations. Additionally, the FAA has 
established a schedule for retrofitting certain 
existing aircraft to comply with operating noise 
standard. The Sponsor is now unable to predict 
what effect, if any, air transport industry 
conditions will have on the airport Bonds in the 
Trust.

Hospital Facility Securities 
  Bonds in the hospital facilities category are 
payable from revenues derived from hospital and 
health care facilities which, generally, were 
constructed or are being constructed with bond 
proceeds. The continuing availability of 
sufficient revenues is dependent upon several 
factors affecting all such facilities generally, 
including, among other factors: utilization 
rates; the cost and availability of malpractice 
insurance and the outcome of malpractice 
litigation; curtailment of operations due to 
shortages in qualified medical staff or labor 
disputes; changes in Federal, state and private 
reimbursement regulations and health care 
delivery programs. The extent of the AIDS 
epidemic is undetermined, and the Sponsor cannot 
predict its full impact on the health care system 
or particular issuers. Utilization rates for a 
particular facility may be determined by cost 
containment programs implemented by third party 
governmental providers or private insurers; long-
term advances in health care delivery reducing 
demand for in-patient services; technological 
developments which may be effectively rationed by 
the scarcity of equipment or specialists; 
governmental approval and the ability to finance 
equipment acquisitions; increased competition due 
to elimination of certain certificate of need 
requirements in some states; and physicians' and 
public perceptions as to standards of care. 
Requirements for Federal or state licenses, 
certifications and contract eligibility and for 
accreditation are subject to change, and may 
require participating facilities to effect costly 
modifications in operations. Prior to June 30, 
1984, participating facilities in the Medicare 
program were reimbursed for their reasonable 
costs of furnishing services; thereafter, the 
Social Security Amendments Act of 1983 mandated 
implementation over a four year period of a 
prospective payment system, based upon diagnosis 
related groups ("DRGs"), for most in-patient 
services. DRG reimbursement rates, because they 
are set by the Federal government, may not fully 
cover the actual cost of furnishing services by 
any particular hospital, and Federal law 
prohibits health care providers from passing 
along the excess costs to Medicare beneficiaries. 
Medicare payments have been, and may continue to 
be, reduced under legislation adopting deficit 
reduction measures. Additionally, certain states 
have recently implemented prospective payment 
systems for their Medicaid programs, and have 
adopted other changes, including enrollment 
restrictions. The Sponsor cannot predict the 
effect, if any, of the DRG system or of further 
reductions in Medicare and Medicaid payments on 
the revenues of Issuers of hospital Securities in 
the Trust. Many hospitals, including certain 
issuers (or the conduit obligors) of Securities 
in the Trust, have been experiencing significant 
financial difficulties in recent years. The 
number of hospital closings has increased during 
the late 1980s, particularly among smaller 
institutions located in rural or inner-city 
areas. Hospital revenues nationwide are primarily 
derived from private insurers, many of which have 
experienced significant operating losses in 
recent years. The Medicare program accounts for 
an increasing share of hospital revenues 
nationwide, and is financed by the Hospital 
Insurance Trust Fund through payroll taxes. Based 
upon preliminary projections including increased 
payroll taxes effective in 1991 (but not 
accounting for any recession) the Fund's trustees 
have forecast that expenditures will exceed tax 
revenues by 1999 and that the Fund will be 
insolvent in 2005. Generally, a number of 
additional legislative proposals concerning 
health care may be introduced in Congress at any 
time. Recently, these proposals have covered a 
wide range of topics, including cost controls, 
national health insurance, incentives for 
competition in the provision of health care 
services, tax incentives and penalties related to 
health care insurance premiums, and promotion of 
prepaid health care plans. The Sponsor is unable 
to predict the effect of any of these proposals, 
if enacted, on any of the Bonds in the Trust 
portfolio. 

Power and Electric Facility Securities 
  These Securities are typically secured by 
revenues derived from power generating 
facilities, which generally include revenues from 
the sale of electricity generated and distributed 
by power agencies using hydroelectric, nuclear, 
fossil fuel or other power sources. Certain 
aspects of the operation of such facilities, 
particularly with regard to generation and 
transmission at the wholesale level, are 
regulated by the Federal Energy Regulatory 
Commission ("FERC"); more extensive regulation 
(affecting retail rate structures) is provided by 
state public service commissions. Special 
considerations include: restrictions on 
operations and increased costs and delays 
attributable to environmental statues and 
regulations; the difficulties of the utilities in 
financing or refinancing large construction 
programs and of the capital markets in absorbing 
utility debt and equity securities; fluctuations 
in fuel supplies and costs, and costs associated 
with conversion to alternate fuel sources; 
uncertainties with regard to demand projections 
due to changing economic conditions, 
implementation of energy conservation measures 
and competitive cogeneration projects; and other 
technical and cost factors. Recent scientific 
breakthroughs in fusion energy and 
superconductive materials may cause current 
technologies for the generation and transmission 
of electricity to become obsolete during the life 
of the Securities in the Portfolio. Issuers 
relying upon hydroelectric generation may 
encounter contests when applying for periodic 
renewal of licenses from FERC to operate dams. 
Issuers relying upon coal as a fuel source may be 
subject to significant costs and operating 
restrictions to comply with emission standards 
which may be adopted to alleviate the problems 
associated with acid rain. Issuers relying upon 
fossil fuel sources and located in air quality 
regions designated as nonattainment areas may 
become subject to pollution control measures 
(which could include abandonment of construction 
projects in progress, plant shutdowns or 
relocation of facilities) ordered pursuant to the 
Clean Air Act. In addition, such Securities are 
sometimes secured by payments to be made to state 
and local joint action power agencies pursuant to 
"take or pay" agreements. Such agreements have 
been held unenforceable by state courts in Idaho, 
Vermont and Washington, which may cause an 
examination of the legal structure of certain 
projects in other states and could possibly lead 
to litigation challenging the enforceability of 
such agreements. 
 Some of the issuers of Securities in the Trust 
may own, operate or participate on a contractual 
basis with nuclear generating facilities, which 
are licensed and regulated by the Nuclear 
Regulatory Commission (the "NRC"). Issuers of 
such securities may incur substantial 
expenditures as a result of complying with NRC 
requirements. Additional considerations include: 
the frequency and duration of plant shutdowns and 
associated costs due to maintenance or safety 
considerations; the problems and associated costs 
related to the use and disposal of radioactive 
materials and wastes in compliance with Federal 
and local law; the implementation of emergency 
evacuation plans for areas surrounding nuclear 
facilities; and other issues associated with 
construction, licensing, regulation, operation 
and eventual decommissioning of such facilities. 
These Securities may be subject to industry-wide 
fluctuations in market value as a consequence of 
market perception of certain highly publicized 
events, as in the Washington Public Power Supply 
System's defaults on its Project 4 and 5 revenue 
bonds and the 1988 bankruptcy filing by the 
Public Service Corporation of New Hampshire. 
Federal, state or municipal governmental 
authorities, or voters by initiative, may from 
time to time impose additional regulations or 
take such other governmental action which might 
cause delays in the licensing, construction or 
operation of nuclear power plants, or the 
suspension or cessation of operations of 
facilities which have been or are being financed 
by proceeds of certain Securities in the Trust. 

Industrial Development/Pollution Control 
Securities 
  These Securities were generally issued prior to 
the enactment of 1986 Code restrictions, and are 
typically secured by payments made under a loan 
agreement entered into between the issuer and the 
obligor. In some cases, the Securities were 
additionally secured by guarantees provided by 
corporate guarantors or by a stand-by letter of 
credit issued by a bank. Special considerations 
include: the financial condition of the corporate 
obligor (or guarantor), especially as it may be 
affected by subsequent corporate restructuring or 
changes in corporate control.

Public Facilities Securities 
  These Securities are typically secured by 
revenues derived from either (i) payments 
appropriated by governmental entities for the use 
of equipment or facilities, such as 
administrative or correctional buildings, or (ii) 
user charges or other revenues derived from such 
operations as parking facilities, convention 
centers or sports arenas. In the first instance, 
the pledged revenues may be subject to annual 
appropriation by legislative body. In the latter 
case, the collection of revenues may be dependent 
upon the reliability of feasibility forecasts and 
assumptions concerning utilization rates. 

Resource Recovery/Solid Waste Securities 
 These Securities are typically secured by 
revenues derived from the sale of electricity or 
steam generated as a by-product of the process of 
incinerating solid waste, and from contractual 
tipping fees, user charges and ancillary 
recycling earnings. Special considerations 
include: the supply of solid waste at levels 
sufficient for the facility to operate at design 
capacity; the frequency and duration of plant 
shutdowns for maintenance; the treatment and 
disposal of fly ash which contains toxic 
substances, especially dioxin; compliance with 
air pollution control standards; unanticipated 
problems associated with the use of developing 
technologies; and the continuation of FERC 
policies facilitating congeneration and its 
certification of any particular qualifying 
facility. Governmental service contract payments 
may be subject to annual appropriation by a 
legislative body. Older facilities may require 
retrofitting to accommodate new technological 
developments or to comply with environmental 
standards. 

Water and Sewer Facility Securities 
 Bonds described as "water and sewer" facilities 
Bonds are typically secured by a pledge of the 
net revenues derived from connection fees and 
user charges imposed by the enterprise. Such 
Bonds are subject to the risks typically 
associated with construction projects. Among the 
factors which may affect net revenues are the 
destruction of facilities due to natural or other 
disasters; relocation out of the service area by 
a major customer or customers due to economic 
factors beyond the issuer's control; or costs 
incurred due to prior periods of deferred 
maintenance or compliance with Federal or state 
environmental standards. Water system revenues 
may be additionally affected by the terms of 
supply allocations and service agreements with 
major wholesale customers and the imposition of 
mandatory conservation measures in response to 
drought. Sewer system revenues may be 
additionally affected by costs to comply with 
effluent and other standards pursuant to the 
Federal and state laws.
Refunded Bonds 
  Refunded bonds (including bonds escrowed to a 
call date or maturity date) are bonds that 
originally had been issued generally as revenue 
bonds but have been refunded for reasons which 
may include changing the issuer's debt service 
requirements and removing restrictive bond 
covenants. Typically, a refunded bond is no 
longer secured by a pledge of revenues received 
by an issuer but rather by an escrow fund 
consisting of U.S. Government Obligations. In 
such cases the issuer establishes an escrow fund 
which is irrevocable and which cannot be depleted 
by the issuer so long as debt service on the 
refunded bonds is required to be paid. Each 
escrow fund is funded with U.S. Government 
Obligations which are designed to make payments 
on the refunded bonds and which cannot be 
affected by a default of the issuer. An escrow 
agent pays principal, redemption premium, if any, 
and interest on the refunded bond from the 
principal of and interest on the U.S. Government 
Obligations in the escrow fund. The Trust, as 
holder of the refunded bonds, is entitled to 
receive such payment of principal, redemption 
premium, if any, and interest on the refunded 
bonds as it is paid by the escrow agents out of 
the respective refunded bond escrow funds. 

Student Loan Securities 
  Student loan revenue securities are issued 
either by non profit corporations organized for 
the purpose of acquiring student loans originated 
under the Higher Education Act or public agencies 
or instrumentalities of a state created to 
provide loans for educational purposes. Proceeds 
of securities issued by such entities generally 
are used to make or acquire student loans which 
are guaranteed by guaranty agencies; the 
obligation of such guaranty agency is reinsured 
by the U.S. Secretary of Education (the 
"Secretary"); such reinsurance obligation may 
range from 80% to 100% based on the default 
levels for loans serviced by such a guaranty 
agency. In addition, some loans may be insured 
directly by the Secretary. Bonds issued by such 
entities are generally secured by and dependent 
upon such state guarantee programs, Federal 
insurance and reimbursement programs, the 
proceeds from payment of principal and interest 
on the underlying student loans and federal 
interest subsidy and/or special allowance 
payments. Failure by the servicers of student 
loans on the guaranty agencies guaranteeing such 
loans to properly service and enforce the loans 
may cause the reimbursements to decline or be 
withheld by the Secretary. 
 Both the Higher Education Act and the 
regulations promulgated thereunder have been the 
subject of extensive amendments in recent years, 
and the Sponsor can give no assurance that 
further amendment will not materially change the 
provisions or the effect thereof. There can be no 
assurance that the other provisions of the Higher 
Education Act affecting the Federal Guaranteed 
Student Loan Program will be continued in their 
present form. 
 The availability of various Federal payments in 
connection with the Federal Guaranteed Student 
Loan Program is subject to federal budgetary 
appropriation. In recent years, legislation has 
been enacted which has provided, subject to 
certain Federal budget expenditures (including 
expenditures in connection with the Federal 
Guaranteed Student Loan Program), for the 
recovery of certain advances previously made by 
the Federal government to state guaranty agencies 
in order to achieve deficit reduction. No 
representation is made as to the effect, if any, 
or future Congressional appropriation or 
legislation upon expenditures by the Department 
of Education or upon the financial condition of 
any guaranty agency.

Lease Payment Bonds
  Certain Bonds may be principally secured by 
governmental lease payments which in turn are 
subject to the budget appropriations of the 
participating governmental entity. A governmental 
entity that enters into a lease agreement cannot 
obligate future governments to make lease 
payments but generally will covenant to take such 
action as is necessary to include all lease 
payments due under an agreement in its annual 
budgets and to make the appropriations therefor. 
The failure of a governmental entity to meet its 
obligations under a lease could result in an 
insufficient amount of funds to cover payment of 
the Bonds secured by such lease payments. 

Tax Allocation Bonds 
  Bonds described as "tax allocation" securities 
are payable from and secured by incremental 
(increased) tax revenues collected on property 
within the areas where redevelopment projects, 
financed by bond proceeds, are located ("project 
areas"). Payments on these bonds are expected to 
be made from projected increases in tax revenues 
derived from higher assessed value of property 
resulting from development in the particular 
project area and not from an increase in the tax 
rates. Among the factors which could result in a 
reduction of the allocated tax revenues which 
secure a tax allocation Bond are: (i) reduction 
of, or a less than anticipated increase in, 
taxable values of property in the project area, 
caused either by economic factors beyond the 
issuer's control (such as a relocation out of the 
project area by one or more major property 
owners) or by destruction of property due to 
natural or other disasters; (ii) successful 
appeals by property owners of assessed 
valuations; (iii) substantial delinquencies in 
the payment of property taxes; or (iv) imposition 
of any constitutional or legislative property tax 
rate decrease. Such reduction of tax revenues 
could have an adverse effect on an issuer's 
ability to make timely payments of principal and 
of interest on the Bonds. 

Crossover Refunding Bonds 
  Certain Bonds in the Trust may be cross-over 
refunding Bonds. Prior to a specified date, (the 
"Crossover Date"), such bonds are payable solely 
from an escrow fund invested in specified 
securities. After the Crossover Date the Bonds 
are payable from a designated source of revenues. 
Such bonds are categorized in Part A as payable 
from such source of revenues.
Bonds Backed by Letters of Credit 
  The Trust may contain securities that are 
secured by letters of credit issued by commercial 
or savings banks which may be drawn upon (i) if 
an issuer fails to make payments of principal of, 
premium, if any, or interest on a Bond backed by 
such a letter of credit or (ii) in the event 
interest on a Bond is deemed to be taxable and 
full payment of principal and any premium due is 
not made by the issuer. The letters of credit are 
irrevocable obligations of the issuing banks. 
Banks are subject to extensive governmental 
regulations. The profitability of the banking 
industry is largely dependent upon the 
availability and cost of capital funds for the 
purpose of financing lending operations under 
prevailing money market conditions. Also, general 
economic conditions play an important part in the 
operations of the banking industry and exposure 
to credit losses arising from possible financial 
difficulties of borrowers or other issuers having 
letters of credit might affect a bank's ability 
to meet its obligations under a letter of credit.

                  ****
  An amendment to the Federal Bankruptcy Act 
relating to the adjustment of indebtedness owed 
by any political subdivision or public agency or 
instrumentality of any state, including 
municipalities, became effective in 1979. Among 
other things, this amendment facilitates the use 
of proceedings under the Federal Bankruptcy Act 
by any such entity to restructure or otherwise 
alter the terms of its obligations, including 
those of the type comprising the Trust's 
portfolio. The Sponsor is unable to predict at 
this time what effect, if any, this legislation 
will have on the Trust.
  Each of the Bonds in the Trust was, as of the 
Date of Deposit, rated "A" or higher by either 
Standard & Poor's Corporation or Moody's 
Investors Service, Inc. (see "Schedule of 
Investments") or were Bonds which the Sponsor 
reasonably believed would have obtained such 
minimum rating soon thereafter. Ratings indicated 
on the Schedule of Investments are Standard & 
Poor's Corporation ratings unless no rating was 
given to a Bond by such rating service or the 
rating category assigned by Moody's Investors 
Service, Inc. was higher, in which case the 
Moody's Investors Service, Inc. rating was 
indicated. Certain Bonds may, in addition to 
their rating, be designated either "p" by 
Standard & Poor's Corporation or "Con" by Moody's 
Investors Service, Inc. Such designations do not 
affect the rating assigned by the respective 
rating services to such Bonds but provide certain 
additional information (see "Bond Ratings" in 
Part B and "Schedule of Investments" in Part A).



ACQUISITION OF SECURITIES FOR THE TRUST
  In selecting Bonds for deposit in the Trust 
many factors were considered, and based upon the 
experience and judgment of the Sponsor, the 
following requirements, among others, were deemed 
to be of primary importance: 
  1. Minimum Standard & Poor's Corporation's 
rating of "A-" or minimum Moody's Investors 
Service, Inc.'s rating of "A" ("investment grade" 
municipal bonds) or Bonds which the Sponsor 
reasonably believes will obtain such minimum 
ratings in the near future;
  2. Reasonable value relative to other issues of 
similar quality and maturity;
  3. Diversification as to the purpose of each 
issue and the location of each issuer; and 
  4. Income to the Unitholders of the Trust. 
  Cash, if any, received from Unitholders prior 
to the settlement date for the purchase of Units 
or prior to the payment for Bonds upon their 
delivery may be used in the Sponsor's business 
subject to the limitations of 17 C.F.R. Section 
240. 15c3-3 under the Securities and Exchange Act 
of 1934 and may be of benefit to the Sponsor.
  The Trustee has not participated in the 
selection of Securities for the Trust, and 
neither the Sponsor nor the Trustee will be 
liable in any way for any default, failure or 
defect in any Securities.
  To the best knowledge of the Sponsor, there was 
no litigation pending as of the Date of Deposit 
in respect of any Securities which might 
reasonably be expected to have a material adverse 
effect upon the Trust. At any time after the Date 
of Deposit, litigation may have been initiated on 
a variety of grounds with respect to Securities 
in the Trust. Such litigation may affect the 
validity of such Securities or the tax-exempt 
status of the interest thereon. While the outcome 
of litigation of such nature cannot be predicted, 
opinions of the bond counsel are delivered with 
respect to each Security on the date of issuance 
to the effect that such Security has been validly 
issued and that the interest thereon is exempt 
from Federal income tax. If legal proceedings are 
instituted after the Date of Deposit seeking, 
among other things, to restrain or enjoin the 
payment of any of the Bonds or attacking their 
validity or the authorization or existence of the 
issuer, the Sponsor may, in accordance with the 
Indenture, direct the Trustee to sell such Bonds 
and distribute the proceeds of such sale to 
Unitholders. In addition, other factors may arise 
from time to time which potentially may impair 
the ability of issuers to meet obligations 
undertaken with respect to Bonds.
            PUBLIC OFFERING PRICE OF UNITS
  The Public Offering Price per Unit during the 
secondary market will be computed by dividing the 
aggregate of the bid prices of the Bonds in the 
Trust plus any money in the Principal Account 
other than money required to redeem the tendered 
Units, by the number of Units outstanding, and 
then adding the appropriate sales charge. If the 
primary offering period, the Public Offering 
Price was determined on the basis of the offering 
prices of bonds plus a sales charge ranging from 
3.5% to 5.5% of the Public Offering Price. 
  The sales charge is determined in accordance 
with the table set forth below based upon the 
number of years remaining to the maturity of each 
Bond. There is no sales charge with respect to 
cash held in the Interest or Principal Accounts. 
For purposes of this calculation, Bonds will be 
deemed to mature on their stated maturity dates 
unless: (a) the Bonds have been called for 
redemption or funds or securities have been 
placed in escrow to redeem them on an earlier 
call date ("Refunded Bonds"), in which case such 
call date shall be deemed to be the date upon 
which they mature; or (b) such Bonds are subject 
to a "mandatory put", in which case such 
mandatory put date shall be deemed to be the date 
upon which they mature. 
 The effect of this method of sales charge 
calculation will be that different sales charge 
rates will be applied to the various Bonds in a 
Trust portfolio based upon the maturities of such 
Bonds, in accordance with the following schedule:
                     Maximum                
                     Percent of             
Remaining            Public       Percent of
Years to             Offering     Net Mount 
Maturity             Price        Invested  
Less than 1          0%           0%        
1 but less than 6    3.50         3.63      
6 but less than 11   4.00         4.17      
More than 11         5.50         5.82      



 For example, the sales charge on a Trust 
consisting entirely of Bonds maturing in 13 to 16 
years would be 5.50% (5.82% of the net amount 
invested) and that on a Trust consisting entirely 
of Bonds maturing in three to five years would be 
3.50% (3.63% of the net amount invested). The 
actual sales charge included in the Public 
Offering Price of any particular Trust will 
depend on the maturities of the Bonds in the 
portfolio of such Trust. 
 Due to the realization of economies of scale in 
sales effort and sales related expenses with 
respect to the purchase of Units by employees of 
the Sponsor, the Sponsor intends to permit 
employees of the Sponsor and certain of their 
relatives to purchase Units of the Trust at a 
price equal to the bid-side evaluation of the 
Securities in the Trust divided by the number of 
Units outstanding plus a reduced sales charge of 
$5.00 per Unit. 
  A proportionate share of accrued interest and 
undistributed interest on the Units to the 
Unitholder's settlement date (the Unitholder's 
settlement date is the date so specified in the 
confirmation of sale of the Units to a 
Unitholder, normally five business days after 
purchase) is added to the Public Offering Price. 
Such proportionate share will be an asset of the 
Unitholder and will be received in subsequent 
distributions and upon the sale of his Units.
  Aggregate bid prices of the Securities will be 
determined for the Trust by the Evaluator on the 
basis of: (1) the current bid prices for the 
Securities; (2) the current bid prices for 
comparable bonds, if bid prices are not available 
for any of the Securities; (3) determining the 
value of the Securities on the bid side of the 
market by appraisal; or (4) any combination of 
the above. Such evaluations and computations will 
be made each business day as of the Evaluation 
Time, effective for all sales or redemptions made 
subsequent to the last preceding determination.
 In addition to the sales charges, on the Date of 
Deposit, the Sponsor realized a profit or loss 
resulting from the difference between the 
purchase price paid by the Sponsor to buy the 
Securities and the cost of the Securities to the 
Trust as determined by the Evaluator. The Sponsor 
may realize additional profit or loss as a result 
of the possible change in the daily evaluation of 
the Bonds in the Trust. All proceeds received 
from purchasers of Units of the Trust will be 
retained by the Sponsor.

             PUBLIC OFFERING OF UNITS
  The Sponsor intends to qualify Units for sale 
in all of the states of the United States, except 
that for state trusts, the Sponsor intends to 
qualify Units for sale only to residents of that 
state. Sales may be made to dealers who are 
members of the National Association of Securities 
Dealers, Inc. at prices which include a 
concession of 75% of the applicable sales charge 
subject to change from time to time. The 
difference between the dealer concession and the 
sales charge will be retained by the Sponsor. The 
Sponsor reserves the right to reject, in whole or 
in part, any order for the purchase of Units. 
  Initial Offering of Units. During the initial 
public offering period, Units were offered to the 
public by the Sponsor at the Public Offering 
Price calculated on each business day, plus 
accrued interest.
  Secondary Offering of Units. Upon the 
termination of the initial public offering 
period, unsold Units or Units acquired by the 
Sponsor in the secondary market referred to below 
may be offered to the public by the Sponsor by 
this Prospectus at the then current Public 
Offering Price, calculated daily, plus accrued 
interest.
             SECONDARY MARKET FOR UNITS
  While not obligated to do so, it is the 
Sponsor's present intention to maintain, at its 
expense, a secondary market for Units of this 
Series and to continuously offer to repurchase 
Units from Unitholders at the "Sponsor's 
Repurchase Price". The Sponsor's Repurchase Price 
is computed by dividing the value of the Trust by 
the number of Units outstanding (see "Evaluation 
of the Trust"). There is no sales charge incurred 
when a Unitholder sells Units back to the 
Sponsor. Any Units repurchased by the Sponsor at 
the Sponsor's Repurchase Price may be reoffered 
to the public by the Sponsor at the then current 
Public Offering Price, plus accrued interest. Any 
profit or loss resulting from the resale of such 
Units will belong to the Sponsor. 
  If the supply of Units exceeds demand, or for 
some other business reason, the Sponsor may at 
any time or occasionally from time to time 
discontinue the repurchase of Units of this 
Series at the Sponsor's Repurchase Price. In such 
event, although under no obligation to do so, the 
Sponsor may, as a service to Unitholders, offer 
to repurchase Units at the "Redemption Value". If 
the Sponsor repurchases Units in the secondary 
market at the "Redemption Value", it may reoffer 
these Units in the secondary market at the 
"Public Offering Price". In no event will the 
price offered by the Sponsor for the repurchase 
of Units be less than the current Redemption 
Value for those Units. See "Redemption of Units 
by Trustee" and "Comparison of Public Offering 
Price and Redemption Value".

ESTIMATED CURRENT RETURN AND ESTIMATED LONG TERM RETURN-
  The Sponsor may from time to time give 
investors Estimated Current Return and Estimated 
Long Term Return information, each of which give 
investors different information about the return. 
Estimated Current Return on a Unit represents 
annual cash receipts from coupon-bearing debt 
obligations in the Trust (after estimated annual 
expenses) divided by the Public Offering Price 
(including the sales charge). 
 Unlike Estimated Current Return, Estimated Long 
Term Return is a measure of the estimated return 
to the investor earned over the estimated life of 
the Trust. Estimated Long Term Return is 
calculated using a formula which (1) takes into 
consideration, and determines and factors in the 
relative weightings of, the market values, yields 
(which takes into account the amortization of 
premiums and the accretion of discounts) and 
estimated retirements of all of the Securities in 
the Trust and (2) takes into account the expenses 
and maximum sales charge associated with each 
Unit. The Estimated Long Term Return calculation 
does not take into account certain delays in 
distributions of income and the timing of other 
receipts and distributions on Units and may, 
depending on maturities, over or understate the 
impact of sales charges. Both of these factors 
may result in a lower figure. 
 Both Estimated Current Return and Estimated Long 
Term Return are subject to fluctuation with 
changes in Trust composition, changes in market 
value of the underlying Securities and changes in 
fees and expenses, including sales charges. The 
size of any difference between Estimated Current 
Return and Estimated Long Term Return can also be 
expected to fluctuate at least as frequently. In 
addition, both return figures may not be directly 
comparable to yield figures used to measure other 
investments, and, since the return figures are 
based on certain assumptions and variables, the 
actual returns received by a Unitholder may be 
higher or lower.

ESTIMATED NET ANNUAL INTEREST INCOME PER UNIT
  The estimated Net Annual Interest Income per 
Unit of the Trust is computed by dividing the 
total gross annual interest income to the Trust 
by the number of Units outstanding and then 
subtracting the per Unit estimated annual fees 
and expenses of the Trustee, the Sponsor and the 
Evaluator (see "Essential Information" in Part 
A). The estimated Net Annual Interest Income per 
Unit will be higher for Unitholders who do not 
elect the monthly plan (where alternate plans of 
distribution are available). This is the result 
of the differing expenses and fees of the Trustee 
in administering the distributions of interest. 
See "Essential Information" in Part A and 
"Distributions to Unitholders". 
  The estimated Net Annual Interest Income per 
Unit will change whenever Securities mature, are 
called for redemption, or are sold. In addition, 
any change in the Trustee's, the Sponsor's (where 
applicable) or Evaluator's fees or expenses will 
result in a change in the estimated Net Annual 
Interest Income per Unit (see "Expenses of the 
Trust").

            DISTRIBUTIONS TO UNITHOLDERS
  The Trustee will collect the interest on the 
Securities as it becomes payable and credit such 
interest to a separate Interest Account created 
by the Indenture. All moneys received by the 
Trustee from sources other than interest will be 
credited to a separate Principal Account. All 
funds collected or received will be held by the 
Trustee in trust without interest to Unitholders 
as part of the Trust or the Reserve Account 
referred to below until required to be disbursed 
in accordance with the provisions of the 
Indenture. Such funds will be segregated by 
separate recordation on the Trust ledger of the 
Trustee so long as such practice preserves a 
valid preference under applicable law, or, if 
such preference is not preserved the Trustee 
shall handle such funds in such other manner as 
shall constitute the segregation and holding 
thereof in trust within the meaning of the 
Investment Company Act of 1940, as the same may 
be from time to time amended. To the extent 
permitted by the Indenture and applicable banking 
regulations, such funds are available for use by 
the Trustee pursuant to normal banking 
procedures.
  The Trustee is authorized by the Indenture to 
withdraw from the Principal and/or Interest 
Accounts such amounts as it deems necessary to 
establish a reserve for any taxes or other 
governmental charges that may be payable out of 
the Trust, which amounts will be deposited in a 
separate Reserve Account. If the Trustee 
determines that the amount in the Reserve Account 
is greater than the amount necessary for payment 
of any taxes or other governmental charges, it 
will promptly deposit the excess in the Account 
from which it was withdrawn.
  The settlement date for the purchase of Units 
must occur on or prior to the Record Date in 
order for a purchaser to receive a distribution 
on the next Distribution Date. If the settlement 
date for the purchase of Units occurs after the 
Record Date, distribution will not occur until 
the second following Distribution Date. 

Interest Account 
  After deduction of the fees and expenses of the 
Trustee, the Sponsor (where applicable and as 
indicated under "Essential Information") and the 
Evaluator, the Trustee will distribute on each 
Distribution Date or shortly thereafter, to 
Unitholders of record on the preceding Record 
Date, an amount approximately equal to either 
one-twelfth, one-quarter or one-half of such 
Unitholder's pro rata share (depending on the 
distribution plans available and selected) of the 
estimated annual amount to be deposited in the 
Interest Account, computed as of the preceding 
Record Date. However, all Unitholders of record 
on the initial Record Date will receive the 
initial interest distribution on the initial 
Interest Distribution Date. The Trustee's fees 
and expenses will be higher for monthly interest 
distributions than for quarterly or semi-annual 
interest distributions, where available. 
Therefore, the amount distributed per Unit to 
Unitholders electing the monthly plan will be 
correspondingly lower than under the quarterly or 
semi-annual plan. All interest distributions 
following the initial interest distribution will 
be in approximately the amounts shown under 
"Essential Information", depending on the plan of 
distribution selected. See "Essential 
Information--Plan of Distribution" in Part A for 
details on electing available distribution plans. 
  Because the Securities in the Trust pay 
interest at varying semi-annual intervals and 
Units pay interest at constant monthly, quarterly 
or semi-annual intervals, the interest accrued on 
Units of the Trust will be greater than the 
amount available for distribution from the 
Interest Account. The Trustee will distribute on 
each Distribution Date an amount which will be 
less than the interest accrued to each Unitholder 
on the preceding Record Date. Pursuant to the 
Indenture, in order to accommodate regular 
interest distributions, the Trust will contain 
undistributed cash balances. The difference 
between the amount accrued to each Unitholder on 
a Record Date and the amount distributed on the 
following Distribution Date is an asset of the 
Unitholder and will be included as part of 
accrued interest which will be received in 
subsequent interest distributions, upon the sale 
of his Units or, in part, upon the sale, 
redemption, or maturity of Securities in the 
Trust. 
  The Trustee is authorized by the Indenture to 
advance such amounts as may be necessary to 
provide interest distributions of approximately 
equal amounts in accordance with the distribution 
plan selected. The Trustee will be reimbursed, 
without interest, for any such advances in the 
manner provided in the Indenture. 

Principal Account 
  The Trustee will distribute an amount equal to 
such Unitholder's pro rata share of the cash 
balance, if any, in the Principal Account on the 
principal Distribution Date specified under 
"Distribution" under "Essential Information". The 
pro rata share is computed as of the preceding 
Record Date. Except for moneys used to redeem 
tendered Units, proceeds received upon the 
disposition of any Securities subsequent to a 
Record Date and prior to the following principal 
Distribution Date will be held in the Principal 
Account and will not be distributed until the 
next succeeding principal Distribution Date. 
However, in the event of an early redemption of 
bonds, sale of bonds upon the occurrence of 
events set forth under "Supervision of Trust 
Investments", or maturity of bonds, there may 
occur a special principal distribution. Any 
special principal distribution will be made 
within 60 days of such event to Unitholders of 
record on the Record Date selected therefor by 
the Trustee as provided in the Indenture. No 
distribution need be made from the Principal 
Account if the cash balance therein is less than 
one-tenth of one per cent of the total principal 
amount of the Securities on the Date of Deposit. 
  Certain of the Bonds in the Trust are subject 
to sinking fund or special redemption by their 
issuers, as set forth under "Redemption Features" 
on the "Schedule of Investments in Part A". The 
redemption price of Bonds in the Trust called by 
an issuer pursuant to sinking fund or special 
redemption is normally equal to the principal 
amount of such Bonds, while the redemption price 
for Bonds called at the option of the issuer may 
include a redemption premium. In most cases Bonds 
are selected from among Bonds of like series and 
maturity either by lot or by such method as the 
bond trustee may adopt. A capital gain or loss 
may occur depending upon the price at which a 
Bond which is called was acquired by the Trust 
and the amount received by the Trust upon 
redemption (see "Tax Status of the Trust"). In 
general, optional redemption provisions are more 
likely to be exercised by an issuer when the 
offering side valuation is greater than par than 
when the offering side valuation is less than 
par. If future interest rates decline, an issuer 
of Bonds might find it advantageous to exercise 
its option to call Bonds prior to maturity even 
though, in most cases, the issuer must pay a 
premium. 

Reinvestment Program 
  Distributions are made to Unitholders monthly. 
The Unitholder has the option of receiving the 
monthly interest interest and/or principal 
distribution or reinvesting at net asset value in 
the PaineWebber Tax-Exempt Income Fund (the 
"Fund"), an open-end investment company 
registered under the Investment Company Act. The 
Fund's investment objective is to provide high 
current income exempt from Federal income tax, 
consistent with the preservation of capital and 
liquidity within the Fund's quality standards. 
Except under unusual market conditions, the Fund 
will invest at least 80% of its assets in 
municipal obligations with varying maturities, 
the interest from which, in the opinion of bond 
counsel to their respective issuers, is exempt 
from both Federal income tax and the Federal 
alternative minimum tax. There can be no 
assurance that the Fund will achieve its 
objective. For more information about the Fund, 
including a prospectus, Unitholders should 
contact their PaineWebber Investment Executive or 
call the Fund's shareholder service number at 1-
800-544-9300. 
  To participate in the Reinvestment Program, 
Unitholders must hold Units in their own name, 
must fill out an application establishing an 
account and notify the Trustee of the account 
number at least 10 days before the Record Date. 
Elections may be revoked upon similar notice.

                EXCHANGE OPTION
  Unitholders may elect to exchange any or all of 
their Units of this series for units of one or 
more of any series of PaineWebber Municipal Bond 
Fund First Series; PaineWebber Municipal Bond 
Fund Second Series; PaineWebber Municipal Bond 
Fund Third Series (the "PaineWebber Series"); The 
Municipal Bond Fund, Series One through Series 
Forty-Three; The Municipal Bond Trust, Series 
Forty-Four and subsequent series (the "National 
Series"); The Municipal Bond Trust, Multi-State 
Program Series One and subsequent series (the 
"Multi-State Series); The Municipal Bond Trust, 
California Series A and subsequent series (the 
"California Series"); The Municipal Bond Trust, 
Insured Series One and subsequent series (the 
"Insured Series"); The Corporate Bond Trust, 
Series One and subsequent series (the "Corporate 
Series"); The PaineWebber Pathfinders Trust, 
Treasury and Growth Stock, Series 1 and 
subsequent series (the "Pathfinders Trust"), the 
PaineWebber Federal Government Trust, GNMA Series 
1 and subsequent Series 1 (the "Federal 
Government Trust") or the PaineWebber Equity 
Trust, Growth Stock Series 1 and subsequent 
series (the "Equity Trust") (collectively 
referred to as the "Exchange Trusts"), at a 
Public Offering Price for the units of the 
Exchange Trusts to be acquired based on a reduced 
sales charge of $15 per unit. The purpose of such 
reduced sales charge is to permit the Sponsor to 
pass on to the Unitholder who wishes to exchange 
Units the cost savings resulting from such 
exchange of Units. The cost savings result from 
reductions in time and expense related to advice, 
financial planning and operational expense 
required for the Exchange Option. Each Exchange 
Trust has different investment objectives, 
therefore a Unitholder should read the prospectus 
for the applicable Exchange Trust carefully prior 
to executing this option. Exchange Trusts having 
as their objective the receipt of tax exempt 
interest income would not be suitable for tax 
deferred investment plans such as Individual 
Retirement Accounts. A Unitholder who purchased 
Units of a series and paid a per unit sales 
charge that was less than the per Unit sales 
charge of the series of Exchange Trusts for which 
such Unitholder desires to exchange into, will be 
allowed to exercise the Exchange Option at the 
Unit Offering Price plus the reduced sales 
charge, provided the Unitholder has held the 
Units for at least five months. Any such 
Unitholder who has not held the Units to be 
exchanged for the five-month period will be 
required to exchange them at the Unit Offering 
Price plus a sales charge based on the greater of 
the reduced sales charge, or an amount which, 
together with the initial sales charge paid in 
connection with the acquisition of the Units 
being exchanged, equals the sales charge of the 
series of the Exchange Trust for which such 
Unitholder desires to exchange into, determined 
as of the date of the exchange. 
  The Sponsor will permit exchanges at the 
reduced sales charge provided there is a 
secondary market maintained by the Sponsor in 
both the Units of this series and units of the 
applicable Exchange Trust and there are units of 
the applicable Exchange Trust available for sale. 
While the Sponsor has indicated that it intends 
to maintain a market for the units of the 
respective Trusts, there is no obligation on its 
part to maintain such a market. Therefore, there 
is no assurance that a market for units will in 
fact exist on any given date at which a 
Unitholder wishes to sell his Units of this 
series and thus there is no assurance that the 
Exchange Option will be available to a 
Unitholder. Exchanges will be effected in whole 
units only. Any excess proceeds from Unitholders' 
units being surrendered will be returned. 
Unitholders will be permitted to advance new 
money in order to complete an exchange. 
 An exchange of units pursuant to the Exchange 
Option will normally constitute a "taxable event" 
under the Code, i.e., a Unitholder will recognize 
a tax gain or loss which will be of a capital or 
ordinary nature depending upon among other things 
the length of time such Unitholder has held the 
Units. However, under the position taken by the 
Internal Revenue Service in Revenue Ruling 81-204 
(relating to the exchange of pools of residential 
mortgage loans by several savings and loan 
associations), an exchange of units for units of 
any other similar series of the PaineWebber 
Municipal Bond Trust, may not constitute a 
taxable event if the units exchanged do not 
differ materially either in kind or in extent 
from each other or if the exchange has no 
significant economic or business purpose or 
utility apart from the anticipated tax 
consequences. Unitholders are advised to consult 
their own tax advisors as to the tax consequences 
of exchanging units in their particular case. 
 The Sponsor reserves the right to modify, 
suspend or terminate this plan at any time 
without further notice to Unitholders. In the 
event the Exchange Option is not available to a 
Unitholder at the time he wishes to exercise it, 
the Unitholder will be immediately notified and 
no action will be taken with respect to his Units 
without further instruction from the Unitholder.
  To exercise the Exchange Option, a Unitholder 
should notify the Sponsor of his desire to 
exercise the Exchange Option and to use the 
proceeds from the sale of his Units of this 
series to purchase units of one or more of the 
Exchange Trusts. If units of the applicable 
outstanding series of the Exchange Trust are at 
that time available for sale, and if such units 
may lawfully be sold in the state in which the 
Unitholder is resident, the Unitholder may select 
the series or group of series for which he 
desires his investment to be exchanged. The 
Unitholder will be provided with a current 
prospectus or prospectuses relating to each 
series in which he indicates interest. 
  The exchange transaction will operate in a 
manner essentially identical to any secondary 
market transaction, i.e., Units will be 
repurchased at a price based on the aggregate bid 
price per Unit of the securities in the portfolio 
of the Trust. Units of the Exchange Trust, 
however, will be sold to the Unitholder at a 
reduced sales charge. Units sold under the 
Exchange Option will be sold at the bid prices 
per unit of the underlying securities in the 
particular portfolio involved plus a fixed charge 
of $15 per unit. Exchange transactions will be 
effected only in whole units; thus, any proceeds 
not used to acquire whole units will be paid to 
the selling Unitholder.
 For example, assume that a Unitholder, who has 
three units of a trust with a current price of 
$1,030 per unit based on the bid prices of the 
underlying securities, desires to sell his units 
and seeks to exchange the proceeds for units of a 
series of an Exchange Trust with a current price 
of $890 per unit based on the bid prices of the 
underlying securities. In this example, which 
does not contemplate rounding up to the next 
highest number of units, the proceeds from the 
Unitholder's units will aggregate $3,090. Since 
only whole units of an Exchange Trust may be 
purchased under the Exchange Option, the 
Unitholder would be able to acquire three units 
in the Exchange Trust for a total cost of $2,715 
($2,670 for the units and $45 for the sales 
charge). The remaining $375 would be returned to 
the Unitholder in cash.
               CONVERSION OPTION
 Owners of units of any registered unit 
investment trust sponsored by others which was 
initially offered at a maximum applicable sales 
charge of at least 3.0% ( a `Conversion Trust') 
may elect to apply the cash proceeds of the sale 
or redemption of those units directly to acquire 
available units of any Exchange Trust at a 
reduced sales charge of $15 per Unit, per 100 
Units in the case of Exchange Trusts having a 
Unit price of approximately $10, or per 1,000 
Units in the case of Exchange Trusts having a 
Unit price of approximately $1, subject to the 
terms and conditions applicable to the Exchange 
Option (except that no secondary market is 
required for Conversion Trust units). To exercise 
this option, the owner should notify his retail 
broker. He will be given a prospectus for each 
series in which he indicates interest and for 
which units are available. The dealer must sell 
or redeem the units of the Conversion Trust. Any 
dealer other than PaineWebber must certify that 
the purchase of units of the Exchange Trust is 
being made pursuant to and is eligible for the 
Conversion Option. The dealer will be entitled to 
two-thirds of the applicable reduced sales 
charge. The Sponsor reserves the right to modify, 
suspend or terminate the Conversion Option at any 
time without further notice, including the right 
to increase the reduced sales charge applicable 
to this option (but not in excess of $5 more per 
Unit, per 100 Units or per 1,000 Units, as 
applicable than the corresponding fee then being 
charged for the Exchange Option). For a 
description of the tax consequences of a 
conversion reference is made to the Exchange 
Option section herein.

              EXPENSES OF THE TRUST
  The cost of the preparation and printing of the 
Certificates, the Indenture and this Prospectus, 
the initial fees of the Trustee and the Trustee's 
counsel, the Evaluator's fees during the initial 
offering period, advertising expenses and 
expenses incurred in establishing the Trust, 
including legal and auditing fees, are paid by 
the Sponsor and not by the Trust. The Sponsor 
will receive no fee from the Trust for its 
services as Sponsor. 
  The Sponsor's fee, deducted only in trusts 
where the Date of Deposit is on or after November 
30, 1982, which is earned for portfolio 
supervisory services, is based upon the aggregate 
face amount of Bonds in the Trust at the 
beginning of each annual period. The Sponsor's 
fee, which is not to exceed the amount set forth 
under "Essential Information" in Part A, may 
exceed the actual costs of providing portfolio 
supervisory services for this Trust, but at no 
time will the total amount the Sponsor receives 
for portfolio supervisory services rendered to 
all series of the Municipal Bond Trust in any 
calendar year exceed the aggregate cost to it of 
supplying such services in such year. 
  For services performed under the Indenture, the 
Trustee will be paid by the Trust at the rate per 
$1,000 of principal amount of Securities in the 
Trust set forth under "Essential Information" in 
Part A. Such compensation will be computed 
monthly, quarterly or semi-annually (depending on 
available plans of distribution) on the basis of 
the greatest principal amount of the Securities 
in the Trust at any time during the preceding 
monthly or semi-annual period.  In no event will 
the Trustee be paid less than $2,000 in any one 
year. The Evaluator's fee for each daily 
evaluation is set forth under "Essential 
Information" in Part A. The fees of the Evaluator 
will be payable by the Trust. See "Essential 
Information" in Part A for the estimated annual 
fees and expenses per Unit under the various 
optional interest distribution plans. 
 The Sponsor's fee is payable annually, Trustee's 
fees are payable monthly, quarterly and semi-
annually (depending on available plans of 
distribution) and the Evaluator's fees are 
payable monthly on or before each Distribution 
Date from the Interest Account, to the extent 
funds are available, then from the Principal 
Account. Any of such fees may be increased 
without approval of the Unitholders by an amount 
not exceeding a proportionate increase in the 
category entitled "All Services Less Rent" in the 
Consumer Price Index published by the United 
States Department of Labor. 
  In addition to the above, the following charges 
are or may be incurred by the Trust and paid from 
the Interest Account, or, to the extent funds are 
not available in such Account, from the Principal 
Account: (1) fees for the Trustee for 
extraordinary services; (2) expenses of the 
Trustee (including legal and auditing expenses) 
and of counsel; (3) various governmental charges; 
(4) expenses and costs of any action taken by the 
Trustee to protect the Trust and the rights and 
interests of the Unitholders; (5) indemnification 
of the Trustee for any loss, liabilities or 
expenses incurred by it in the administration of 
the Trust without negligence, bad faith or 
willful misconduct on its part; and (6) expenses 
incurred in contacting Unitholders upon 
termination of the Trust. The fees and expenses 
set forth above are payable out of the Trust and 
when unpaid will be secured by a lien on the 
Trust. 
 The accounts of certain Trusts may be audited 
not less than annually by independent public 
accountants selected by the Sponsor. The expenses 
of the audit shall be an expense of the Trust. So 
long as the Sponsor maintains a secondary market, 
Sponsor will bear any audit expense which exceeds 
50 cents per Unit. Unitholders covered by the 
audit (if any) during the year may receive a copy 
of the audited financials upon request.

             DESCRIPTION OF CERTIFICATES
  Ownership of Units is evidenced by registered 
Certificates, executed by the Trustee and the 
Sponsor, issued in denominations of one Unit or 
any integral multiple thereof. A Unitholder may 
transfer its Certificate by presenting it to the 
Trustee at its corporate trust office. Such 
Certificate must be properly endorsed or 
accompanied by a written instrument or 
instruments of transfer executed by the 
Unitholder or its duly authorized attorney. A 
Unitholder may be required to pay $2.00 per 
Certificate transferred to cover the Trustee's 
costs in implementing such transfer and to pay 
any tax or other governmental charge that may be 
imposed in connection with any such transfer. The 
Trustee is required to execute and deliver a new 
Certificate in exchange and substitution for any 
Certificate mutilated, destroyed, stolen or lost, 
if and when the Unitholder furnishes the Trustee 
with proper identification and satisfactory 
indemnity, and pays such expenses as the Trustee 
may reasonably incur. Any mutilated Certificate 
must be presented to the Trustee before any 
substitute Certificate will be issued.

             STATEMENTS TO UNITHOLDERS
  With each distribution from the Interest and 
Principal Accounts, the Trustee will furnish each 
Unitholder with a statement setting forth the 
amount being distributed from each Account 
expressed as a dollar amount per Unit. 
  Promptly after the end of each calendar year, 
the Trustee will furnish to each person who at 
any time during the calendar year was a 
registered Unitholder a statement setting forth: 
  1. As to the Interest Account: 
  (a) the amount of interest received on the 
Securities and the percentage of such amount by 
states and territories in which the issuers of 
the Bonds are located; 
  (b) the amount paid from the Interest Account 
representing accrued interest for any 
Certificates redeemed; 
  (c) the deductions from the Interest Account 
for fees and expenses of the Trustee, the Sponsor 
and the Evaluator or for other various fees, 
charges or expenses relating to the Trust; 
  (d) the deductions from the Interest Account 
for payment into the Reserve Account; and 
  (e) the net amount remaining after such 
payments and deductions expressed as a total 
dollar amount outstanding on the last business 
day of such calendar year. 
  2. As to the Principal Account: 
  (a) the dates of the redemption, sale or 
maturity of any of the Securities and the net 
proceeds received therefrom, excluding any 
portion credited to the Interest Account; 
  (b) the amount paid from the Principal Account 
representing the principal of any Certificates 
redeemed; 
  (c) the deductions from the Principal Account 
for fees and expenses of the Trustee, the Sponsor 
and the Evaluator or for other various fees, 
charges or expenses relating to the Trust; 
  (d) the deductions from the Principal Account 
for payment into the Reserve Account; and 
  (e) the net amount remaining after such 
payments and deductions expressed as a total 
dollar amount outstanding on the last business 
day of such calendar year. 
  3. The following information: 
  (a) a list of the Securities as of the last 
business day of such calendar year; 
  (b) the number of Units outstanding on the last 
business day of such calendar year; 
  (c) the Unit Value based on the last evaluation 
of the Trust made on the last business day during 
such calendar year; and 
  (d) the amounts actually distributed during 
such calendar year from the Interest and 
Principal Accounts, separately stated, expressed 
both as total dollar amounts and as dollar 
amounts per Unit outstanding on the Record Dates 
for such distributions.

            REDEMPTION OF UNITS BY TRUSTEE
  A Unitholder who wishes to dispose of its Units 
should inquire through its broker as to the 
current market price for such Units prior to 
making a tender for redemption to the Trustee in 
order to determine if there is a market for Units 
in excess of the then current Redemption Value or 
Sponsor's Repurchase Price. After the initial 
offering period the Redemption Value will be the 
same as the Sponsor's Repurchase Price. 
  During the period in which the Sponsor 
maintains a secondary market for Units at the 
Sponsor's Repurchase Price, the Sponsor has 
agreed to repurchase any Unit presented for 
tender to the Trustee for redemption no later 
than the close of business on the second business 
day following such presentation. 
  The Trustee is irrevocably authorized in its 
discretion, in lieu of redeeming Units presented 
for tender at the redemption value, to sell such 
Units in the over-the-counter market for the 
account of a tendering Unitholder at prices which 
will return to the Unitholder amounts in cash, 
net after brokerage commissions, transfer taxes 
and other charges, equal to or in excess of the 
Redemption Value for such Units. In the event of 
any such sale the Trustee will pay the net 
proceeds thereof to the Unitholder on the day he 
would otherwise be entitled to receive payment of 
the Redemption Value.
  One or more Units represented by a Certificate 
may be redeemed at the Redemption Value upon 
tender of such Certificate to the Trustee at its 
corporate trust office, properly endorsed or 
accompanied by a written instrument of transfer 
in form satisfactory to the Trustee, and executed 
by the Unitholder or its authorized attorney. A 
Unitholder may tender its Units for redemption at 
any time after the settlement date for purchase, 
whether or not it has received a definitive 
Certificate. The Redemption Value per Unit is 
calculated by dividing the current bid prices for 
the Securities in the Trust (see "Evaluation of 
the Trust") plus any money in the Principal 
Account other than money required to redeem 
tendered Units, by the number of Units 
outstanding, plus a proportionate share of 
accrued interest and undistributed 
interest income on the Securities determined to 
the day of tender. There is no sales charge 
incurred when a Unitholder tenders his Units to 
the Trustee for redemption. Subject to the 
payment of any applicable tax or governmental 
charges, the Redemption Value of Units redeemed 
by the Trustee will be paid on the seventh 
calendar day following the day of tender. If such 
day of payment is not a business day, the 
Redemption Value will be paid on the first 
business day prior thereto. 
  The Trustee may, in its discretion, and will 
when so directed by the Sponsor, suspend the 
right of redemption, or postpone the date of 
payment of the Redemption Value, for more than 
seven calendar days following the day of tender 
for any period during which the New York Stock 
Exchange, Inc. is closed other than for weekend 
and holiday closings; or for any period during 
which the Securities and Exchange Commission 
determines that trading on the New York Stock 
Exchange, Inc. is restricted or for any period 
during which an emergency exists as a result of 
which disposal or evaluation of the Securities is 
not reasonably practicable; or for such other 
period as the Securities and Exchange Commission 
may by order permit for the protection of 
Unitholders. The Trustee is not liable to any 
person or in any way for any loss or damages 
which may result from any such suspension or 
postponement.
  Any amounts paid on redemption representing 
interest will be withdrawn from the Interest 
Account to the extent that funds are available 
for such purpose. All other amounts paid on 
redemption will be withdrawn from the Principal 
Account. The Trustee is empowered to sell 
Securities out of the Trust as selected by the 
Sponsor in order to make funds available for the 
redemption of Certificates, and, to the extent 
Securities are sold for such purpose, the size 
and diversity of the Trust will be reduced. Such 
sales may be required at a time when Securities 
would not otherwise be sold and may result in 
lower prices than might otherwise be realized. In 
addition, because of the minimum principal amount 
in which Securities may be required to be sold, 
the proceeds of such sales may exceed the amount 
necessary for payment of Units redeemed. Such 
excess proceeds will be distributed pro rata to 
all remaining Unitholders of record.

              EVALUATION OF THE TRUST
  The Evaluator is Kenny Information Systems, a 
division of J.J. Kenny Co., Inc., 65 Broadway, 
New York, New York 10006. 
  The value of the Trust is computed as of the 
Evaluation Time shown under "Essential 
Information" in Part A (1) on each June 30 and 
December 31 (or the last business day prior 
thereto), (2) on each business day as long as the 
Sponsor is maintaining a bid in the secondary 
market, (3) on the day on which any Unit is 
tendered for redemption and (4) on any other day 
desired by the Sponsor or the Trustee, by adding:
  1. The aggregate value of Securities in the 
Trust, as determined by the Evaluator: 
  (a) on the basis of current bid prices for the 
Securities, 
  (b) on the basis of current bid prices for 
comparable bonds, if bid prices are not available 
for any of the Securities, 
  (c) by determining the value of the Securities 
on the bid side of the market by appraisal, or 
  (d) by any combination of the above; 
  2. Money on hand in the Trust, other than money 
deposited to purchase Securities or money 
credited to the Principal Account which is 
required to redeem tendered Units; and 
  3. Accrued but unpaid interest on the 
Securities at the close of business on the date 
of such Evaluation. 
  The Trustee will deduct from the resulting 
figure: amounts representing any applicable taxes 
or governmental charges payable by the Trust for 
the purpose of making an addition to the Reserve 
Account; amounts representing estimated accrued 
expenses of the Trust; amounts representing 
unpaid fees of the Trustee, the Sponsor and the 
Evaluator; and cash held for distribution to 
Unitholders of record as of the business day 
prior to the Evaluation being made on the days or 
dates set forth above. 
  For the purpose of the redemption of Units, the 
value per Unit is computed by the Trustee by 
dividing the result of the above computation by 
the total number of Units outstanding on the date 
of such Evaluation.

COMPARISON OF PUBLIC OFFERING PRICE AND REDEMPTION VALUE
  While the Public Offering Price of Units during 
the initial offering period is determined on the 
basis of the current offering prices of the 
Securities, the Public Offering Price of Units in 
the secondary market and the Redemption Value is 
determined on the basis of the current bid prices 
of such Securities. On the date of the "Essential 
Information" page, the Public Offering Price per 
Unit (which figure includes the sales charge) 
exceeded the Redemption Value by the amount shown 
under "Essential Information" in Part A. The 
difference between the bid and offering prices of 
the Securities is expected to average 1-1/2% to 
2% of principal amount. This difference may vary 
between 3% or more of principal amount for 
inactively traded Securities and as little as 1/2 
of 1% for actively traded Securities. For this 
reason and others, including the fact that the 
Public Offering Price includes the sales charge, 
the amount realized by a Unitholder upon 
redemption of Units may be less than the price 
paid by the Unitholder for such Units.

           SUPERVISION OF TRUST INVESTMENTS
  The acquisition by the Trust of any securities 
other than the Securities initially deposited is 
prohibited by the Indenture. The Sponsor may 
direct the Trustee to sell or liquidate any of 
the Securities upon the happening of any of the 
following events (except for the limited right to 
replace securities in the case of a fail):
  1. Default by an issuer in the payment of 
principal of or interest on such Securities, or 
any other outstanding obligations of such issuer, 
when due and payable, 
  2. Institution of legal proceedings seeking to 
restrain or enjoin the payment of any of the 
Securities or attacking their validity,
  3. A breach of a covenant or warranty which 
could adversely affect the payment of debt 
service on the Securities,  4. In the case of 
revenue bonds, if the revenues, based upon 
official reports, fall substantially below the 
estimated revenues calculated to be necessary to 
pay principal of and interest on the Bonds,
  5. A decline in market price, or such other 
market or credit factor, as in the opinion of the 
Sponsor would make retention of any of the 
Securities detrimental to the Unitholders, or 
  6. In the event that any of the Bonds are the 
subject of an advance refunding.
  In addition, if a default in the payment of 
principal of or interest on any of the Securities 
occurs and the Sponsor fails to instruct the 
Trustee to sell or hold such Securities within 
thirty days after notification by the Trustee to 
the Sponsor of such default, the Indenture 
provides that the Trustee will sell the defaulted 
Securities promptly. The Trustee will not be 
liable or responsible in any way for depreciation 
or loss incurred by reason of any sale made by it 
either pursuant to a direction of the Sponsor or 
by reason of a failure of the Sponsor to give any 
such direction. 
  The Sponsor is required to instruct the Trustee 
to reject any offer made by an issuer of any of 
the Bonds to issue new obligations in exchange 
and substitution for any of the Bonds pursuant to 
a refunding or refinancing plan; however, the 
Sponsor may instruct the Trustee to accept or 
reject such an offer or to take any other action 
with respect thereto as the Sponsor deems proper 
if the issuer is in default with respect to the 
Securities or the issuer will, in the written 
opinion of the Sponsor, probably default with 
respect to the Bonds in the reasonably 
foreseeable future. 
 Any obligations received by the Trust in the 
event of such an exchange or substitution will be 
held by the Trustee and will be subject to the 
terms and conditions of the Indenture to the same 
extent as the Securities originally deposited. 
Within five days after any exchange and deposit, 
notice of such will be mailed by the Trustee to 
each registered Unitholder, which identifies the 
Securities eliminated and the Securities 
substituted.

             ADMINISTRATION OF THE TRUST
  Records and Accounts: Pursuant to the 
Indenture, the Trustee is required to keep proper 
books of record and account of all transactions 
relating to the Trust at its office. Such records 
will include the name and address of every 
Unitholder, a list of the Certificate numbers and 
the number of Units of each Certificate issued to 
Unitholders. The Trustee is also required to keep 
a certified copy or duplicate original of the 
Indenture and a current list of Securities held 
in the Trust on file at its office which will be 
open to inspection by any Unitholder during usual 
business hours.
  The Trustee is required to make annual or other 
reports as may from time to time be required 
under any applicable state or Federal statute, 
rule or regulation. 
  Successor Trustee: Under the Indenture, the 
Trustee may resign and be discharged of the Trust 
created by the Indenture by executing a notice of 
resignation in writing and filing it with the 
Sponsor. The resigning Trustee must also mail a 
copy of the notice of resignation to all 
Unitholders then of record, not less than sixty 
days before the effective resignation date 
specified in such notice. Such resignation will 
become effective only upon the appointment of and 
the acceptance of the Trust by a successor 
Trustee. The Sponsor, upon receiving notice of 
such resignation, is obligated to appoint a 
successor Trustee promptly. 
  If within thirty days after notice of 
resignation has been received by the Sponsor, no 
successor Trustee has been appointed or, if 
appointed, has not accepted the appointment, the 
resigning Trustee may apply to a court of 
competent jurisdiction for the appointment of a 
successor. In case the Trustee becomes incapable 
of acting as such or is adjudged a bankrupt or is 
taken over by any public authority, the Sponsor 
may discharge the Trustee and appoint a successor 
Trustee as provided in the Indenture. Notice of 
such discharge and appointment shall be mailed to 
each Unitholder by the Sponsor. 
  Upon a successor Trustee's execution of a 
written acceptance of an appointment as Trustee 
for the Trust, such successor Trustee will become 
vested with all the rights, powers, duties and 
obligations of the original Trustee. 
  A successor Trustee is required to be a 
corporation organized and doing business under 
the laws of the United States or of the State of 
New York; to be authorized under such laws to 
exercise corporate trust powers; to have at all 
times an aggregate capital, surplus and undivided 
profit of not less than $5,000,000; and to have 
its principal office in New York City. 
  Successor Sponsor: If at any time the Sponsor 
shall fail to undertake or perform or become 
incapable of undertaking or performing any of the 
duties which by the terms of the Indenture are 
required of it to be undertaken or performed, or 
if the Sponsor resigns, the Trustee may either 
appoint a successor Sponsor or Sponsors as will 
be satisfactory to the Trustee or it may 
terminate the Indenture and liquidate the Trust. 
Any successor Sponsor may be compensated at rates 
deemed by the Trustee to be reasonable. 
  The dissolution of the Sponsor or its ceasing 
to exist as a legal entity from, or for, any 
cause whatsoever will not cause the termination 
of the Indenture or the Trust unless the Trustee 
deems termination to be in the best interests of 
Unitholders. 
  Successor Evaluator: The Evaluator may resign 
or may be removed by the Sponsor or the Trustee, 
and the Sponsor and the Trustee are to use their 
best efforts to appoint a satisfactory successor. 
Such resignation or removal will become effective 
upon the acceptance of appointment by a 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 
Evaluator. Notice of such resignation or removal 
and appointment will be mailed by the Trustee to 
each Unitholder.

             LIMITATION OF LIABILITIES
  The Sponsor: The Indenture provides that the 
Sponsor will not be liable to the Trustee, the 
Trust or the Unitholders for taking any action or 
for refraining from taking any action made in 
good faith or for errors in judgment, but will be 
liable only for its own willful misfeasance, bad 
faith, gross negligence or willful disregard of 
its duties. The Sponsor will not be liable or 
responsible in any way for depreciation or loss 
incurred by reason of the sale of any Securities 
in the Trust. 
  The Trustee: The Indenture provides that the 
Trustee will not be liable for any action taken 
in good faith in reliance on properly executed 
documents or for the disposition of moneys, 
Securities or Certificates, except by reason of 
its own gross negligence, bad faith or willful 
misconduct, nor will the Trustee be liable or 
responsible in any way for depreciation or loss 
incurred by reason of the sale by the Trustee of 
any Securities in the Trust. In the event of the 
failure of the Sponsor to act, the Trustee may 
act and will not be liable for any such action 
taken by it in good faith. The Trustee will not 
be personally liable for any taxes or other 
governmental charges imposed upon or in respect 
of the Securities or upon the interest thereon or 
upon it as Trustee or upon or in respect of the 
Trust which the Trustee may be required to pay 
under any present or future law of the United 
States of America or of any other taxing 
authority having jurisdiction. In addition, the 
Indenture contains other customary provisions 
limiting the liability of the Trustee. The 
Trustee will be indemnified and held harmless 
against any loss or liability accruing to it 
without negligence, bad faith or willful 
misconduct on its part, arising out of or in 
connection with its acceptance or administration 
of the Trust, including the costs and expenses 
(including counsel fees) of defending itself 
against any claim of liability.
  The Evaluator: The Trustee, Sponsor, and 
Unitholders may rely on any evaluation furnished 
by the Evaluator and will have no responsibility 
for the accuracy thereof. The Indenture provides 
that the determinations made by the Evaluator 
will be made in good faith upon the basis of the 
best information available to it; provided, 
however, that the Evaluator will be under no 
liability to the Trustee, Sponsor or Unitholders 
for errors in judgment, but will be liable only 
for its gross negligence, lack of good faith or 
willful misconduct.

             AMENDMENT OF THE INDENTURE
  The Indenture may be amended by the Trustee and 
the Sponsor without the consent of any of the 
Unitholders to cure any ambiguity or to correct 
or supplement any provision thereof which may be 
defective or inconsistent or to make such other 
provisions as will not adversely affect the 
interest of the Unitholders; provided, however, 
that after the deposit of the Securities the 
Indenture may not be amended to increase the 
number of Units issued thereunder or to permit 
the deposit or acquisition of securities either 
in addition to or in substitution for any of the 
Securities initially deposited in the Trust, 
except for the substitution of certain refunding 
securities for the Securities. The Trustee will 
promptly notify Unitholders of the substance of 
any such amendment.

              RIGHTS OF UNITHOLDERS
  A Unitholder may at any time tender his 
Certificate to the Trustee for redemption. 
  The death or incapacity of any Unitholder will 
not operate to terminate the Trust nor entitle 
his legal representatives or heirs to claim an 
accounting or to take any action or proceeding in 
any court for a partition or winding up of the 
Trust. 
  No Unitholder will have the right to vote 
concerning the Trust, except with respect to 
termination, or in any manner control the 
operation and management of the Trust, nor shall 
any Unitholder ever be liable to any other person 
by reason of any action taken by the Sponsor or 
the Trustee.

             TERMINATION OF THE TRUST
  The Indenture provides that the Trust will 
terminate upon the maturity, redemption, sale or 
other disposition of the last of the Securities 
held in the Trust. If the value of the Trust as 
shown by any evaluation is less than twenty per 
cent (20%) of the par value of the Securities 
originally deposited in the Trust, the Trustee 
may in its discretion, and will when so directed 
by the Sponsor, terminate the Trust. The Trust 
may also be terminated at any time by the written 
consent of 100% of the Unitholders or by the 
Trustee upon the resignation or removal of the 
Sponsor if the Trustee determines termination to 
be in the best interest of the Unitholders. In no 
event will the Trust continue beyond the 
Mandatory Termination Date.
  Upon termination, the Trustee will sell the 
Securities then held in the Trust and credit the 
moneys derived from such sale to the Principal 
Account and the Interest Account. The Trustee 
will then, after deduction of any fees and 
expenses of the Trust and payment into the 
Reserve Account of any amount required for taxes 
or other governmental charges that may be payable 
by the Trust, distribute to each Unitholder, upon 
surrender for cancellation of his Certificate 
after due notice of such termination, such 
Unitholder's pro rata share in the Interest and 
Principal Accounts. The sale of Securities in the 
Trust upon termination may result in a lower 
amount than might otherwise be realized if such 
sale were not required at such time. For this 
reason, among others, the amount realized by a 
Unitholder upon termination may be less than the 
principal amount of Securities represented by the 
Units held by such Unitholder.

                  SPONSOR
  The Sponsor, PaineWebber Incorporated, is a 
corporation organized under the laws of the State 
of Delaware. The Sponsor is a member firm of the 
New York Stock Exchange, Inc. as well as other 
major securities and commodities exchanges and is 
a member of the National Association of 
Securities Dealers, Inc. The Sponsor is engaged 
in a security and commodity brokerage business as 
well as underwriting and distributing new issues. 
The Sponsor also acts as a dealer in unlisted 
securities and municipal bonds and, in addition 
to participating as a member 
of various selling groups or as an agent of other 
investment companies, executes orders on behalf 
of investment companies for the purchase and sale 
of securities of such companies and sells 
securities to such companies in its capacity as a 
broker or dealer in securities.
                LEGAL OPINION
  The legality of the Units offered hereby has 
been passed upon by Orrick, Herrington & 
Sutcliffe, 666 Fifth Avenue, New York, New York, 
as counsel for the Sponsor.

              INDEPENDENT AUDITORS
 The financial statements, including the schedule 
of investments, of the Trust included in Part A 
of this Prospectus have been audited by Ernst & 
Young LLP, independent auditors, for the period 
indicated in their report appearing herein. The 
financial statements audited by Ernst & Young LLP 
have been included in reliance on their report 
given on their authority as experts in accounting 
and auditing.
                BOND RATINGS*

 NR _ Securities which, while not rated by 
Standard & Poor's or Moody's, have been 
determined by the trusts sponsor to be of 
investment grade quality.

Standard & Poor's Corporation 
  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.
  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: 
  I. 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, and 
  II. Nature of and provisions of the obligation, 
 III. 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 in the majority of 
instances they differ from AAA issues only in 
small degree.
  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. 
  BB, B, CCC, CC--Debt rated BB, B, CCC and CC is 
regarded, on balance, as predominantly 
speculative with respect to capacity to pay 
interest and repay principal in accordance with 
the terms of the obligation. BB indicated the 
lowest degree of speculation and CC the highest 
degree of speculation. While such debt will 
likely have some quality and protective 
characteristics, these are outweighed by large 
uncertainties or major risk exposures to adverse 
conditions. 
  C--The rating C is reserved for income bonds on 
which no interest is being paid. 
  D--Debt rated D is in default, and payment of 
interest and/or repayment of principal in 
arrears. 
  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: The letter "p" following a 
rating indicates the rating is provisional. A 
provisional rating 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.

___________
 *As described by the rating agencies.
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.
  Ba--Bonds which are rated Ba are judged to have 
speculative elements; their future cannot be 
considered as well assured. Often the protection 
of interest and principal payments may be very 
moderate and thereby not well safeguarded during 
both good and bad times over the future. 
Uncertainty of position characterizes bonds in 
this class. 
  B--Bonds which are rated B generally lack the 
characteristics of a desirable investment. 
Assurance of interest and principal payments or 
of maintenance of other terms of the contract 
over any long period of time may be small. 
  Caa--Bonds which are rated Caa are in poor 
standing. Such issues may be in default or there 
may be present elements of danger with respect to 
principal or interest. 
  Ca--Bonds which are rated Ca represent 
obligations which are speculative in a high 
degree. Such issues are often in default or have 
other marked shortcomings. 
  C--Bonds which are rated C are the lowest rated 
class of bonds and issues so rated can be 
regarded as having extremely poor prospects of 
ever attaining any real investment standing. 
  Rating symbols may include numerical modifiers 
1, 2 or 3. The numerical modifier 1 indicates 
that the security ranks at the high end, 2 in the 
mid-range, and 3 nearer the low end of the 
generic category. These modifiers of rating 
symbols Aa, A and Baa are to give investors a 
more precise indication of relative debt quality 
in each of the historically defined categories. 
  Conditional ratings, indicated by "Con" are 
given to bonds for which the security depends 
upon the completion of some act or the 
fulfillment of some condition. These are bonds 
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. A 
parenthetical rating denotes probable credit 
stature upon completion of construction or 
elimination of basis of such condition. 
 The following summarizes the applicable 
designations used by Moody's for short term notes 
and short term loans:  MIG1--Loans bearing this 
designation are of the best quality, enjoying 
strong protection from established cash flows of 
funds for their servicing or from established and 
broad-based access to the market for refinancing, 
or both. 
 MIG2--Loans bearing this designation are of high 
quality, with margins of protection ample 
although not so large as the preceding group. 









 
                       CONTENTS OF REGISTRATION STATEMENT
          This registration statement comprises the following
  documents:
          The facing sheet.
          The Prospectus.
          The signatures.
          The following exhibits:
          EX-99.2     Opinion of Counsel as to legality of securities
                      being registered
          EX-99.C2    Consent of Kenny Information Systems
          EX-27       Financial Data Schedule
          EX-99.C1    Consent of Independent Auditors
                               FINANCIAL STATEMENTS
          1.      Statement of Condition of the Trust as shown in
                  the current Prospectus for this series.
          2.      Financial Statements of the Depositor.
                  PaineWebber Incorporated - Financial Statements
                  incorporated by reference to Form 10-k and
                  Form 10-Q (File No. 1-7367) respectively.
 
  SIGNATURES
  Pursuant to the requirements of the Securities Act of 1933, the
  registrant, The Municipal Bond Fund, Series 42 certifies that it meets
  all of the requirements for effectiveness of this Registration
  Statement pursuant to Rule 485(b) under the Securities Act of 1933
  and has duly caused this registration statement to be signed on its
  behalf by the undersigned thereunto duly authorized, and its seal to
  be hereunto affixed and attested, all in the City of New York, and the
  State of New York on the 7th day of May, 1996.
                      THE MUNICIPAL BOND FUND, SERIES 42
                                  (Registrant)
                              By: PaineWebber Incorporated
                                  (Depositor)
                              /s/ ROBERT E. HOLLEY
                                  Robert E. Holley
                                  Senior Vice President
  Pursuant to the requirements of the Securities Act of 1933, this
  Registration Statement has been signed on behalf of PaineWebber
  Incorporated, the Depositor, by the following persons in the
  following capacities and in the City of New York, and State of New
  York, on this 7th day of May, 1996.
  PAINEWEBBER INCORPORATED
       Name                        Office
  Donald B. Marron            Chairman, Chief Executive Officer,
                              Director & Member of the Executive
                              Committee *
  Regina A. Dolan             Senior Vice President, Chief Financial Officer
                              and Director *
  Joseph J. Grano, Jr.        President, Retail Sales & Marketing,
                              Director and Member of the Executive
                              Committee *
                              By:/s/ ROBERT E. HOLLEY
                                    Attorney-in-fact*
  *   Executed copies of the powers of attorney have been filed with the
      Securities and Exchange Commission in connection with the Registration
      Statement for File No. 33-19786.
 
  

  May 7, 1996
  PaineWebber Incorporated
  1200 Harbor Blvd.
  Weehawken, New Jersey 07087
  Ladies and Gentlemen:
  We have served as counsel for PaineWebber Incorporated as
  sponsor and depositor (the "Depositor") of The Municipal Bond
  Fund, Series 42 (hereinafter referred to as the "Trust"). The
  Depositor seeks by means of Post-Effective Amendment No. 19 to
  register for reoffering 7,625 Units acquired by the Depositor in the
  secondary market (hereinafter referred to as the "Units").
  In this regard, we have examined executed originals or copies of the
  following:
  (a)  The Restated Certificate of Incorporation, as amended, and the
       By-Laws of the Depositor, as amended;
  (b)  Resolutions of the Board of Directors of the Depositor adopted on
       December 3, 1971 relating to the Trust and the sale of the Units;
  (c)  Resolutions of the Executive Committee of the Depositor adopted
       on September 24, 1984;
  (d)  Powers of Attorney referred to in the Amendment;
  (e)  Post-Effective Amendment No. 19 to the Registration Statement on
       Form S-6 (File No. 2-59679) to be filed with the Securities and
       Exchange Commission (the "Commission") in accordance with
       the Securities Act of 1933, as amended, and the rules and
       regulations of the Commission promulgated thereunder
       (collectively, the "1933 Act") proposed to be filed on or about the
       date hereof (the "Amendment");
  (f)  The Notification of Registration of the Trust filed with the
       Commission under the Investment Company Act of 1940, as
       amended (collectively, the "1940 Act") on Form N-8A, as
       amended;
  (g)  The registration of the Trust filed with the Commission under the
       1940 Act on Form N-8B-2 (File No. 811-2599), as amended;
  (h)  The prospectus included in the Amendment (the "Prospectus");
  (i)  The Standard Terms and Conditions of the Trust dated as of
       October 30, 1975, as amended, among the Depositor, The Chase
       Manhattan Bank N.A. (the "Trustee"), and Standard
       & Poor's Corporation and Kenny Information Systems, a division
       of J.J. Kenny Co., Inc. (the "Evaluator") (the "Standard Terms");
  (j)  The Trust Indenture dated as of the Date of Deposit, among the
       Depositor, the Trustee and the Evaluator (the "Trust Indenture"
       and, collectively with the Standard Terms, the "Indenture and
       Agreement");
  (k)  The form of certificate of ownership for units (the "Certificate") to
       be issued under the Indenture and Agreement; and
  (l)  Such other pertinent records and documents as we have deemed
       necessary.
       With your permission, in such examination, we have assumed
  the following: (a) the authenticity of original documents and the
  genuineness of all signatures; (b) the conformity to the originals of
  all documents submitted to us as copies; (c) the truth, accuracy,
  and completeness of the information, representations, and warranties
  contained in the records, documents, instruments and certificates we
  have reviewed; (d) except as specifically covered in the opinions set
  forth below, the due authorization, execution, and delivery on behalf
  of the respective parties thereto of documents referred to herein and
  the legal, valid, and binding effect thereof on such parties; and (e)
  the absence of any evidence extrinsic to the provisions of the written
  agreement(s) between the parties that the parties intended a
  meaning contrary to that expressed by those provisions. However,
  we have not examined the securities deposited pursuant to the
  Indenture and Agreement (the "Securities") nor the contracts for the
  Securities.
       We express no opinion as to matters of law in jurisdictions other
  than the States of New York and California and the United States,
  except to the extent necessary to render the opinion as to the
  Depositor in paragraph (i) below with respect to Delaware law. As
  you know we are not licensed to practice law in the State of
  Delaware, and our opinion in paragraph (i) and (iii) as to Delaware
  law is based solely on review of the official statutes of the State of
  Delaware.
       Based upon such examination, and having regard for legal
  considerations which we deem relevant, we are of the opinion that:
  (i)  The Depositor is a corporation duly organized, validly existing, and
       in good standing under the laws of the State of Delaware with full
       corporate power to conduct its business as described in the
       Prospectus;
  (ii) The Depositor is duly qualified as a foreign corporation and is in
       good standing as such within the State of New York;
  (iii)The terms and provisions of the Units conform in all material
       respects to the description thereof contained in the Prospectus;
  (iv) The consummation of the transactions contemplated under the
       Indenture and Agreement and the fulfillment of the terms thereof
       will not be in violation of the Depositor's Restated Certificate of
       Incorporation, as amended, or By-Laws, as amended and will not
       conflict with any applicable laws or regulations applicable to the
       Depositor in effect on the date hereof; and
  (v)  The Certificates to be issued by the Trust, when duly executed by
       the Depositor and the Trustee in accordance with the Indenture
       and Agreement, upon delivery against payment therefor as
       described in the Prospectus will constitute fractional undivided
       interests in the Trust enforceable against the Trust in accordance
       with their terms, will be entitled to the benefits of the Indenture
       and Agreement and will be fully paid and non-assessable.
  Our opinion that any document is valid, binding, or enforceable in
  accordance with its terms is qualified as to:
  (a)  limitations imposed by bankruptcy, insolvency, reorganization,
       arrangement, fraudulent conveyance, moratorium, or other laws
       relating to or affecting the enforcement of creditors' rights
       generally;
  (b)  rights to indemnification and contribution which may be limited by
       applicable law or equitable principles; and
  (c)  general principles of equity, regardless of whether such
       enforceability is considered in a proceeding in equity or at law.
       We hereby represent that the Amendment contains no disclosure
  which would render it ineligible to become effective immediately
  upon filing pursuant to paragraph (b) of Rule 485 of the
  Commission.
       We hereby consent to the filing of this opinion as an exhibit to
  the Amendment and to the use of our name wherever it appears in
  the Amendment and the Prospectus.
  Very truly yours,
  /s/ ORRICK, HERRINGTON & SUTCLIFFE

  KENNY INFORMATION SYSTEMS
  (A Division of J.J. Kenny Co., Inc.)
  May 7, 1996,
  PaineWebber Incorporated
  Unit Trust Department
  1200 Harbor Blvd.
  Weehawken, New Jersey 07087
  RE: THE MUNICIPAL BOND FUND, SERIES 42
  Gentlemen:
  We have examined the post-effective Amendment to the Registration
  Statement File No. 2-59679 for the above-captioned trust. We hereby
  acknowledge that Kenny Information Systems, a division of J.J.
  Kenny Co., Inc. is currently acting as the evaluator for the trust. We
  hereby consent to the use in the Amendment of the reference to
  Kenny Information Systems, a division of J.J. Kenny Co. 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,
                              /s/ JOHN R. FITZGERALD
                              John R. Fitzgerald
                              Senior Vice President
  

<TABLE> <S> <C>
 
  <ARTICLE> 6 
  <SERIES> 
    <NUMBER> 42
    <NAME> THE MUNICIPAL BOND FUND 
  <MULTIPLIER> 1 
  <CURRENCY> U.S.Dollars 
          
  <S>                           <C>             <C>             <C> 
  <PERIOD-TYPE>                 YEAR            YEAR            YEAR 
  <FISCAL-YEAR-END>             FEB-01-1996     FEB-01-1995     FEB-01-1994 
  <PERIOD-START>                FEB-02-1995     FEB-02-1994     FEB-02-1993 
  <PERIOD-END>                  FEB-01-1996     FEB-01-1995     FEB-01-1994 
  <EXCHANGE-RATE>               1               1               1 
  <INVESTMENTS-AT-COST>         2,924,878       0               0                
  <INVESTMENTS-AT-VALUE>        3,216,809       0               0 
  <RECEIVABLES>                    34,658       0               0 
  <ASSETS-OTHER>                   63,174       0               0 
  <OTHER-ITEMS-ASSETS>                  0       0               0 
  <TOTAL-ASSETS>                3,314,641       0               0 
  <PAYABLE-FOR-SECURITIES>              0       0               0 
  <SENIOR-LONG-TERM-DEBT>               0       0               0 
  <OTHER-ITEMS-LIABILITIES>        60,788       0               0 
  <TOTAL-LIABILITIES>              60,788       0               0 
  <SENIOR-EQUITY>                       0       0               0 
  <PAID-IN-CAPITAL-COMMON>              0       0               0 
  <SHARES-COMMON-STOCK>             9,626       0               0 
  <SHARES-COMMON-PRIOR>             9,823       0               0 
  <ACCUMULATED-NII-CURRENT>        43,695       0               0 
  <OVERDISTRIBUTION-NII>                0       0               0 
  <ACCUMULATED-NET-GAINS>               0       0               0 
  <OVERDISTRIBUTION-GAINS>              0       0               0 
  <ACCUM-APPREC-OR-DEPREC>        291,931       0               0 
  <NET-ASSETS>                  3,253,853       0               0 
  <DIVIDEND-INCOME>                     0       0               0 
  <INTEREST-INCOME>               193,030       219,873         366,305 
  <OTHER-INCOME>                        0       0               0 
  <EXPENSES-NET>                    7,028       7,139           10,280 
  <NET-INVESTMENT-INCOME>         186,002       212,734         356,025 
  <REALIZED-GAINS-CURRENT>       (12,596)       4,102           13,093
  <APPREC-INCREASE-CURRENT>       152,766       (192,130)       151,194 
  <NET-CHANGE-FROM-OPS>           326,172       24,706          520,312 
  <EQUALIZATION>                        0       0               0 
  <DISTRIBUTIONS-OF-INCOME>       262,968       207,077         355,518
  <DISTRIBUTIONS-OF-GAINS>              0       0               0 
  <DISTRIBUTIONS-OTHER>            84,201       1,424,738       2,271,357 
  <NUMBER-OF-SHARES-SOLD>               0       0               0 
  <NUMBER-OF-SHARES-REDEEMED>         197       458             503 
  <SHARES-REINVESTED>                   0       0               0 
  <NET-CHANGE-IN-ASSETS>         (88,238)       (1,733,703)     (2,411,690)
  <ACCUMULATED-NII-PRIOR>               0       0               0                
  <ACCUMULATED-GAINS-PRIOR>             0       0               0 
  <OVERDISTRIB-NII-PRIOR>               0       0               0 
  <OVERDIST-NET-GAINS-PRIOR>            0       0               0 
  <GROSS-ADVISORY-FEES>                 0       0               0 
  <INTEREST-EXPENSE>                    0       0               0 
  <GROSS-EXPENSE>                       0       0               0 
  <AVERAGE-NET-ASSETS>                  0       0               0 
  <PER-SHARE-NAV-BEGIN>                 0       0               0 
  <PER-SHARE-NII>                       0       0               0 
  <PER-SHARE-GAIN-APPREC>               0       0               0 
  <PER-SHARE-DIVIDEND>                  0       0               0 
  <PER-SHARE-DISTRIBUTIONS>             0       0               0 
  <RETURNS-OF-CAPITAL>                  0       0               0 
  <PER-SHARE-NAV-END>                 338       0               0 
  <EXPENSE-RATIO>                       0       0               0 
  <AVG-DEBT-OUTSTANDING>                0       0               0 
  <AVG-DEBT-PER-SHARE>                  0       0               0 
                                        
  
</TABLE>

 
  INDEPENDENT AUDITORS' CONSENT
  We consent to the reference to our firm under the caption
  "Independent Auditors" and to the use of our report dated April 29,
  1996, in the Registration Statement and related Prospectus of The Municipal
  Bond Fund, Series 42.
  /s/ ERNST & YOUNG LLP
  New York, New York
  May 7, 1996


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