DEFINED ASSET FUNDS MUNICIPAL INSURED SERIES
497, 1999-05-28
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                                     DEFINED ASSET FUNDSSM
- --------------------------------------------
- -----------------------------------


                              MUNICIPAL INSURED SERIES
                              (A UNIT INVESTMENT TRUST)
                              O   PORTFOLIO OF INSURED LONG TERM MUNICIPAL BONDS
                              O   DESIGNED FOR FEDERALLY TAX-FREE INCOME
                              O   MONTHLY INCOME DISTRIBUTIONS



SPONSORS:                      -------------------------------------------------
Merrill Lynch,                 The Securities and Exchange Commission has not
Pierce, Fenner & Smith         approved or disapproved these Securities or
Incorporated                   passed upon the adequacy of this prospectus. Any
PaineWebber Incorporated       representation to the contrary is a criminal
Prudential Securities          offense.
Incorporated                   Prospectus dated May 28, 1999.


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Defined Asset FundsSM
Defined Asset FundsSM is America's oldest and largest family of unit investment
trusts, with over $160 billion sponsored over the last 28 years. Defined Asset
Funds has been a leader in unit investment trust research and product
innovation. Our family of Funds helps investors work toward their financial
goals with a full range of quality investments, including municipal, corporate
and government bond portfolios, as well as domestic and international equity
portfolios.

Defined Asset Funds offer a number of advantages:
   o A disciplined strategy of buying and holding with a long-term view is the
     cornerstone of Defined Asset Funds.
   o Fixed portfolio: Defined Funds follow a buy and hold investment strategy;
     funds are not managed and portfolio changes are limited.
o Defined Portfolios: We choose the stocks and bonds in advance, so you know
  what you're investing in.
o Professional research: Our dedicated research team seeks out stocks or bonds
      appropriate for a particular fund's objectives.
o Ongoing supervision: We monitor each portfolio on an ongoing basis.
No matter what your investment goals, tolerance for risk or time horizon,
there's probably a Defined Asset Fund that suits your investment style. Your
financial professional can help you select a Defined Asset Fund that works best
for your investment portfolio.

THE FINANCIAL INFORMATION IN THIS PROSPECTUS IS AS OF THE EVALUATION DATE,
JANUARY 31, 1999.


CONTENTS
                                                              PAGE
                                                         ---------
Risk/Return Summary....................................          3
What You Can Expect From Your Investment...............          7
   Monthly Income......................................          7
   Return Figures......................................          7
   Records and Reports.................................          7
The Risks You Face.....................................          8
   Interest Rate Risk..................................          8
   Call Risk...........................................          8
   Reduced Diversification Risk........................          8
   Liquidity Risk......................................          8
   Concentration Risk..................................          8
   Bond Quality Risk...................................          9
   Insurance Related Risk..............................          9
   Litigation and Legislation Risks....................          9
Selling or Exchanging Units............................          9
   Sponsors' Secondary Market..........................          9
   Selling Units to the Trustee........................         10
   Exchange Option.....................................         10
How The Fund Works.....................................         10
   Pricing.............................................         10
   Evaluations.........................................         11
   Income..............................................         11
   Expenses............................................         11
   Portfolio Changes...................................         12
   Fund Termination....................................         12
   Certificates........................................         12
   Trust Indenture.....................................         12
   Legal Opinion.......................................         13
   Auditors............................................         13
   Sponsors............................................         13
   Trustee.............................................         14
   Underwriters' and Sponsors' Profits.................         14
   Public Distribution.................................         14
   Code of Ethics......................................         14
   Year 2000 Issues....................................         14
Taxes..................................................         14
Supplemental Information...............................         16
Financial Statements...................................        D-1


                                       2
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RISK/RETURN SUMMARY


       1.  WHAT IS THE FUND'S OBJECTIVE?
           The Fund seeks to provide interest income that is exempt
           from regular federal income taxes by investing in a fixed
           portfolio consisting primarily of long-term insured
           municipal revenue bonds.
       2.  WHAT ARE MUNICIPAL REVENUE BONDS?
           Municipal revenue bonds are bonds issued by states,
           municipalities and public authorities to finance the cost
           of buying, building or improving various projects intended
           to generate revenue, such as airports, health care
           facilities, housing and municipal electric, water and sewer
           utilities. Generally, payments on these bonds depend solely
           on the revenues generated by the projects, excise taxes or
           state appropriations, and are not backed by the
           government's taxing power.
       3.  WHAT IS THE FUND'S INVESTMENT STRATEGY?
        O  The Fund plans to hold to maturity 11 insured long-term
           tax-exempt municipal bonds, and some short-term bonds
           reserved to pay the deferred sales charge, with a current
           aggregate face amount of $4,830,000.
        o  The Fund is a unit investment trust which means that,
           unlike a mutual fund, the Fund's portfolio is not managed.
        o  The bonds are rated AAA or Aaa by Standard & Poor's,
           Moody's or Fitch.
        o  100% of the bonds are insured by insurance companies.
           Insurance guarantees timely payments of principal and
           interest on the bonds (but not Fund units or the market
           value of the bonds before they mature).

           The Portfolio consists of municipal bonds of the following
           types:



                                                 APPROXIMATE
                                                  PORTFOLIO
                                                  PERCENTAGE



        o  Hospital/Health Care                           44%
        o  Housing                                          18%
o          Industrial Development Revenue              18%
o          Refunded Bonds                                 16%
        o  Special Tax                                        2%
        o  Municipal Electric Utilities                     1%
o          Universities/Colleges                             1%



       4.  WHAT ARE THE SIGNIFICANT RISKS?
           YOU CAN LOSE MONEY BY INVESTING IN THE FUND. THIS CAN
           HAPPEN FOR VARIOUS REASONS, INCLUDING:
        o  Rising interest rates, an issuer's worsening financial
           condition or a drop in bond ratings can reduce the price of
           your units.
        o  Because the Fund is concentrated in hospital/health care
           bonds, adverse developments in this sector may affect the
           value of your units.
        o  Assuming no changes in interest rates, when you sell your
           units, they will generally be worth less than your cost
           because your cost included a sales fee.
        o  The Fund will receive early returns of principal if bonds
           are called or sold before they mature. If this happens your
           income will decline and you may not be able to reinvest the
           money you receive at as high a yield or as long a maturity.



       5.  IS THIS FUND APPROPRIATE FOR YOU?
           Yes, if you want monthly income free from regular federal
           income tax. You will benefit from a professionally selected
           and supervised portfolio whose risk is reduced by investing
           in bonds of several different issuers.
           The Fund is not appropriate for you if you want a
           speculative investment that changes to take advantage of
           market movements, if you do not want a tax-advantaged
           investment or if you cannot tolerate any risk.


                                       3
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           DEFINING YOUR INCOME


           WHAT YOU MAY EXPECT (PAYABLE ON THE 25TH DAY OF
           EACH MONTH):
           Regular Monthly Income per unit                   $    3.90
           Annual Income per unit                            $   46.82
           RECORD DAY: 10th day of each month
           These figures are estimates on the evaluation date; actual
           payments may vary.



       6.  WHAT ARE THE FUND'S FEES AND EXPENSES?
           This table shows the costs and expenses you may pay,
           directly or indirectly, when you invest in the Fund.
           INVESTOR FEES
           Maximum Sales Fee (Load) on new
           purchases (as a percentage of
           $1,000 invested)                                  2.90%
           You will pay an up-front sales fee of 0.80% as well as a
           deferred sales fee of $2.75 per unit quarterly November,
           February, May and August, through February, 2000.
           Employees of some of the Sponsors and their affiliates may
           be charged a reduced sales fee of no less than $5.00 per
           unit.
           ESTIMATED ANNUAL FUND OPERATING EXPENSES



                                                        AMOUNT
                                                      PER UNIT
                                                    -----------
                                                     $    0.63
           Trustee's Fee
                                                     $    0.42
           Portfolio Supervision,
           Bookkeeping and
           Administrative Fees
           (including updating
           expenses)
                                                     $    0.26
           Evaluator's Fee
                                                     $    0.31
           Other Operating Expenses
                                                    -----------
                                                     $    1.62
           TOTAL


           The Sponsors historically paid updating expenses.


       7.  HOW HAVE SIMILAR FUNDS PERFORMED IN THE PAST?
           In the following chart we show past performance of prior
           municipal Insured Series, which had the same investment
           objectives, strategies and types of bonds as this Fund but
           a different sales charge structure. These prior Insured
           Series were offered between January 5, 1988 and October 17,
           1996 and were outstanding on March 31, 1999. OF COURSE,
           PAST PERFORMANCE OF PRIOR SERIES IS NO GUARANTEE OF FUTURE
           RESULTS OF THIS FUND.

           AVERAGE ANNUAL COMPOUND TOTAL RETURNS
           FOR PRIOR SERIES
           Reflecting all expenses. For periods ended 3/31/99.



                   WITH SALES FEE                    NO SALES FEE
            1 YEAR     5 YEARS   10 YEARS    1 YEAR     5 YEARS   10 YEARS


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High         4.22%      7.44%      6.98%      7.02%      8.64%      7.58%
Average      2.01       5.67       6.81       5.38       6.73       7.41
Low          -0.65      4.26       6.70       2.98       5.08       7.30


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Average
Sales fee    3.35%      5.19%      5.82%


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Note: All returns represent changes in unit price with distributions reinvested
 into the Municipal Fund Investment Accumulation Program.


       8.  IS THE FUND MANAGED?
           Unlike a mutual fund, the Fund is not managed and bonds are
           not sold because of market changes. Rather, experienced
           Defined Asset Funds financial analysts regularly review the
           bonds in the Fund. The Fund may sell a bond if certain
           adverse credit or other conditions exist.
       9.  HOW DO I BUY UNITS?
           The minimum investment is one unit.
           You can buy units from any of the Sponsors and other
           broker-dealers. The Sponsors are listed later in this
           prospectus. Some banks may offer units for sale through
           special arrangements with the Sponsors, although certain
           legal restrictions may apply.


                                       4
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           UNIT PRICE PER UNIT                       $950.24
           (as of January 31, 1999)
           Unit price is based on the net asset value of the Fund plus
           the sales fee. An amount equal to any principal cash, as
           well as net accrued but undistributed interest on the unit,
           is added to the unit price. An independent evaluator prices
           the bonds at 3:30 p.m. Eastern time every business day.
           Unit price changes every day with changes in the prices of
           the bonds in the Fund.

      10.  HOW DO I SELL UNITS?
           You may sell your units at any time to any
           Sponsor or the Trustee for the net asset
           value determined at the close of business on
           the date of sale, less any remaining deferred
           sales fee. You will not pay any other fee
           when you sell your units.
      11.  HOW ARE DISTRIBUTIONS MADE AND TAXED?
           The Fund pays income monthly. In the opinion of bond
           counsel when each bond was issued, interest on the bonds in
           this Fund is generally 100% exempt from regular federal
           income tax.
           A portion of the income may also be exempt from state and
           local personal income taxes, depending on where you live.
           You will also receive principal payments if bonds are sold
           or called or mature, when the cash available is more than
           $5.00 per unit. You will be subject to tax on any gain
           realized by the Fund on the disposition of bonds.
      12.  WHAT OTHER SERVICES ARE AVAILABLE?
           REINVESTMENT
           You will receive your monthly income in cash unless you
           choose to compound your income by reinvesting with no sales
           fee in the Municipal Fund Investment Accumulation Program,
           Inc. This program is an open-end mutual fund with a
           comparable investment objective, but those bonds generally
           will not be insured. Income from this program will
           generally be subject to state and local income taxes. For
           more complete information about the program, including
           charges and fees, ask the Trustee for the program's
           prospectus. Read it carefully before you invest. The
           Trustee must receive your written election to reinvest at
           least 10 days before the record day of an income payment.
           EXCHANGE PRIVILEGES
           You may exchange units of this Fund for units of certain
           other Defined Asset Funds. You may also exchange into this
           Fund from certain other funds. We charge a reduced sales
           fee on exchanges.

                                       5
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    TAX-FREE VS. TAXABLE INCOME: A COMPARISON OF TAXABLE AND TAX-FREE YIELDS

<TABLE>
<CAPTION>

                                  EFFECTIVE
TAXABLE INCOME 1999*               % TAX                         TAX-FREE YIELD OF
  SINGLE RETURN    JOINT RETURN   BRACKET    3%     3.5%     4%     4.5%     5%     5.5%     6%     6.5%
                                                        IS EQUIVALENT TO A TAXABLE YIELD OF
- ----------------------------------------------------------------------------------------------------------
<S>        <C>    <C>       <C>      <C>       <C>    <C>      <C>    <C>      <C>    <C>      <C>     <C>
 $      0- 25,750 $      0- 43,050   15.00     3.53   4.12     4.71   5.29     5.88   6.47     7.06    7.65
- ----------------------------------------------------------------------------------------------------------
$ 25,751- 62,450 $ 43,051-104,050   28.00     4.17   4.86     5.56   6.25     6.94   7.64     8.33    9.03
- ----------------------------------------------------------------------------------------------------------
$ 62,451-130,250 $104,051-158,550   31.00     4.35   5.07     5.80   6.52     7.25   7.97     8.70    9.42
- ----------------------------------------------------------------------------------------------------------
$130,251-283,150 $158,551-283,150   36.00     4.69   5.47     6.25   7.03     7.81   8.59     9.38   10.16
- ----------------------------------------------------------------------------------------------------------
OVER $283,151       OVER $283,151   39.60     4.97   5.79     6.62   7.45     8.28   9.11     9.93   10.76
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</TABLE>


To compare the yield of a taxable security with the yield of a federally
tax-free security, find your taxable income and read across. The table
incorporates 1999 federal income tax rates and assumes that all income would
otherwise be taxed at a U.S. investor's highest tax rate. Yield figures are for
example only.

*Based upon net amount subject to federal income tax after deductions and
exemptions. This table does not reflect the possible effect of other tax
factors, such as alternative minimum tax, personal exemptions, the phase-out of
exemptions, itemized deductions, the possible partial disallowance of deductions
or state and local taxation. Consequently, investors are urged to consult their
own tax advisers in this regard.

                                       6
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WHAT YOU CAN EXPECT FROM YOUR INVESTMENT

MONTHLY INCOME

The Fund will pay you regular monthly income. Your monthly income may vary
because of:
   o elimination of one or more bonds from the Fund's portfolio because of
     calls, redemptions or sales;
   o a change in the Fund's expenses; or
   o the failure by a bond's issuer to pay interest.

Changes in interest rates generally will not affect your monthly income because
the portfolio is fixed.

Along with your monthly income, you will receive your share of any available
bond principal.

RETURN FIGURES

We cannot predict your actual return, which will vary with unit price, how long
you hold your investment and changes in the portfolio, interest income and
expenses.

Estimated Current Return equals the estimated annual cash to be received from
the bonds in the Fund less estimated annual Fund expenses, divided by the Unit
Price (including the maximum sales fee):


 Estimated Annual                  Estimated
 Interest Income        -       Annual Expenses
- -------------------------------------------------
                   Unit Price


Estimated Long Term Return is a measure of the estimated return over the
estimated life of the Fund. Unlike Estimated Current Return, Estimated Long Term
Return reflects maturities, discounts and premiums of the bonds in the Fund. It
is an average of the yields to maturity (or in certain cases, to an earlier call
date) of the individual bonds in the portfolio, adjusted to reflect the Fund's
maximum sales fee and estimated expenses. We calculate the average yield for the
portfolio by weighting each bond's yield by its market value and the time
remaining to the call or maturity date.

Yields on individual bonds depend on many factors including general conditions
of the bond markets, the size of a particular offering and the maturity and
quality rating of the particular issues. Yields can vary among bonds with
similar maturities, coupons and ratings.

These return quotations are designed to be comparative rather than predictive.

RECORDS AND REPORTS

You will receive:
o a monthly statement of income payments and any principal payments;
o a notice from the Trustee when new bonds are deposited in exchange or
  substitution for bonds originally deposited;
o an annual report on Fund activity; and
o annual tax information. This will also be sent to the IRS. You must report the
  amount of tax-exempt interest received during the year.

You may request:
o copies of bond evaluations to enable you to comply with federal and state tax
  reporting requirements; and
o audited financial statements of the Fund.

You may inspect records of Fund transactions at the Trustee's office during
regular business hours.

                                       7
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THE RISKS YOU FACE

INTEREST RATE RISK

Investing involves risks, including the risk that your investment will decline
in value if interest rates rise. Generally, bonds with longer maturities will
change in value more than bonds with shorter maturities. Bonds in the Fund are
more likely to be called when interest rates decline. This would result in early
returns of principal to you and may result in early termination of the Fund. Of
course, we cannot predict how interest rates may change.

CALL RISK

Many bonds can be prepaid or 'called' by the issuer before their stated
maturity.

For example, an issuer might call its bonds if it no longer needs the money for
the original purpose or, during periods of falling interest rates, if the
issuer's bonds have a coupon higher than current market rates. If the bonds are
called, your income will decline and you may not be able to reinvest the money
you receive at as high a yield or as long a maturity. An early call at par of a
premium bond will reduce your return.

REDUCED DIVERSIFICATION RISK

If many investors sell their units, the Fund will have to sell bonds. This could
reduce the diversification of your investment and increase your share of Fund
expenses.

LIQUIDITY RISK

The bonds will generally trade in the over-the-counter market. We cannot assure
you that a liquid trading market will exist, especially since current law may
restrict the Fund from selling bonds to any Sponsor. The value of the bonds, and
of your investment, may be reduced if trading in bonds is limited or absent.

CONCENTRATION RISK

When a certain type of bond makes up 25% or more of the portfolio, the Fund is
said to be 'concentrated' in that bond type, which makes the Fund less
diversified.

Here is what you should know about the Fund's concentration in hospital and
health care bonds:
   o payment for these bonds depends on revenues from private third-party payors
      and government programs, including Medicare and Medicaid, which have
      generally undertaken cost containment measures to limit payments to
     healthcare providers;
   o hospitals face increasing competition resulting from hospital mergers and
      affiliations;
   o hospitals need to reduce costs as HMOs increase market penetration and
     hospital supply and drug companies raise prices;
   o hospitals and health care providers are subject to various legal claims by
     patients and others and are adversely affected by increasing costs of
     insurance;
   o many hospitals are aggressively buying physician practices and assuming
     risk contracts to gain market share. If revenues do not increase
     accordingly, this practice could reduce profits;
   o Medicare is changing its reimbursement system for nursing homes. Many
     nursing home providers are not sure how they will be treated. In many
     cases, the providers may receive lower reimbursements and these would have
     to cut expenses to maintain profitability; and
   o most retirement/nursing home providers rely on entrance fees for operating
      revenues. If people live longer than

                                       8
<PAGE>
      expected and turnover is lower than budgeted, operating revenues would be
      adversely affected by less than expected entrance fees.

Changes to the portfolio from bond redemptions, maturities and sales may affect
the Fund's concentration over time.

BOND QUALITY RISK

A reduction in a bond's rating may decrease its value and, indirectly, the value
of your investment in the Fund.

INSURANCE RELATED RISK

The bonds are backed by insurance companies (as shown under Defined Portfolio).
Insurance policies generally make payments only according to a bond's original
payment schedule and do not make early payments when a bond defaults or becomes
taxable. Although the federal government does not regulate the insurance
business, various state laws and federal initiatives and tax law changes could
significantly affect the insurance business. The claims-paying ability of the
insurance companies is generally rated A or better by Standard & Poor's or
another nationally recognized rating organization. The insurance company ratings
are subject to change at any time at the discretion of the rating agencies.

LITIGATION AND LEGISLATION RISKS

We do not know of any pending litigation that might have a material adverse
effect upon the Fund.

Future tax legislation could affect the value of the portfolio by:
   o limiting real property taxes,
   o reducing tax rates,
   o imposing a flat or other form of tax, or
   o exempting investment income from tax.

SELLING OR EXCHANGING UNITS

You can sell your units at any time for a price based on net asset value. Your
net asset value is calculated each business day by:
   o adding the value of the bonds, net accrued interest, cash and any other
     Fund assets;
   o subtracting accrued but unpaid Fund expenses, unreimbursed Trustee
      advances, cash held to buy back units or for distribution to investors and
     any other Fund liabilities; and
   o dividing the result by the number of outstanding units.

Your net asset value when you sell may be more or less than your cost because of
sales fees, market movements and changes in the portfolio.

If you sell your units before the final deferred sales fee installment, the
amount of any remaining installments will be deducted from your proceeds.

SPONSORS' SECONDARY MARKET

While we are not obligated to do so, we will buy back units at net asset value
without any other fee or charge other than any remaining deferred sales fee. We
may resell the units to other buyers or to the Trustee. You should consult your
financial professional for current market prices to determine if other broker-
dealers or banks are offering higher prices.

We have maintained a secondary market continuously for over 28 years, but we
could discontinue it without prior notice for any business reason.

                                       9
<PAGE>
SELLING UNITS TO THE TRUSTEE

Regardless of whether we maintain a secondary market, you can sell your units to
the Trustee at any time by sending the Trustee a letter (with any outstanding
certificates if you hold unit certificates). You must properly endorse your
certificates (or execute a written transfer instrument with signatures
guaranteed by an eligible institution). Sometimes, additional documents are
needed such as a trust document, certificate of corporate authority, certificate
of death or appointment as executor, administrator or guardian.

Within seven days after your request and the necessary documents are received,
the Trustee will mail a check to you. Contact the Trustee for additional
information.

As long as we are maintaining a secondary market, the Trustee will sell your
units to us at a price based on net asset value. If there is no secondary
market, the Trustee may sell your units in the over-the-counter market for a
higher price, but it is not obligated to do so. In that case, you will receive
the net proceeds of the sale.

If the Fund does not have cash available to pay you for units you are selling,
the agent for the Sponsors will select bonds to be sold. Bonds will be selected
based on market and credit factors. These sales could be made at times when the
bonds would not otherwise be sold and may result in your receiving less than the
unit par value and also reduce the size and diversity of the Fund.

There could be a delay in paying you for your units:
   o if the New York Stock Exchange is closed (other than customary weekend and
      holiday closings);
   o if the SEC determines that trading on the New York Stock Exchange is
     restricted or that an emergency exists making sale or evaluation of the
     bonds not reasonably practicable; and
   o for any other period permitted by SEC order.

EXCHANGE OPTION

You may exchange units of certain Defined Asset Funds for units of this Fund at
a maximum exchange fee of 1.90%. You may exchange units of this Fund for units
of certain other funds at a reduced sales fee if your investment goals change.
To exchange units, you should talk to your financial professional about what
funds are exchangeable, suitable and currently available.

Normally, an exchange is taxable and you must recognize any gain or loss on the
exchange. However, the IRS may try to disallow a loss if the portfolios of the
two funds are not materially different; you should consult your own tax adviser.

We may amend or terminate this exchange option at any time without notice.

HOW THE FUND WORKS

PRICING

The price of a unit includes interest accrued on the bonds, less expenses, from
the most recent Record Day up to, but not including, the settlement date, which
is usually three business days after the purchase date of the unit.

                                       10
<PAGE>
A portion of the price of a unit consists of cash so that the Trustee can
provide you with regular monthly income. When you sell your units you will
receive your share of this cash.

EVALUATIONS

An independent Evaluator values the bonds on each business day (excluding
Saturdays, Sundays and the following holidays as observed by the New York Stock
Exchange: New Year's Day, Presidents' Day, Martin Luther King, Jr. Day, Good
Friday, Memorial Day, Independence Day, Labor Day, Thanksgiving and Christmas).
Bond values are based on current bid or offer prices for the bonds or comparable
bonds. In the past, the difference between bid and offer prices of publicly
offered tax-exempt bonds has ranged from 0.5% of face amount on actively traded
issues to 3.5% on inactively traded issues; the difference has averaged between
1 and 2%.

INCOME

The Trustee credits interest to an Income Account and other receipts to a
Capital Account. The Trustee may establish a Reserve Account by withdrawing from
these accounts amounts it considers appropriate to pay any material liability.
These accounts do not bear interest.

EXPENSES

The Trustee is paid monthly. It also benefits when it holds cash for the Fund in
non-interest bearing accounts. The Trustee may also receive additional amounts:
   o to reimburse the Trustee for the Fund's operating expenses;
   o for extraordinary services and costs of indemnifying the Trustee and the
      Sponsors;
   o costs of actions taken to protect the Fund and other legal fees and
     expenses;
   o expenses for keeping the Fund's registration statement current; and
   o Fund termination expenses and any governmental charges.

The Sponsors are currently reimbursed up to 45 cents per $1,000 face amount
annually for providing portfolio supervisory, bookkeeping and administrative
services and for any other expenses properly chargeable to the Fund. Legal,
typesetting, electronic filing and regulatory filing fees and expenses
associated with updating the Portfolio's registration statement yearly are also
now chargeable to the Portfolio. While this fee may exceed the amount of these
costs and expenses attributable to this Fund, the total of these fees for all
Series of Defined Asset Funds will not exceed the aggregate amount attributable
to all of these Series for any calendar year. The Fund also pays the Evaluator's
fees.

The Trustee's, Sponsors' and Evaluator's fees may be adjusted for inflation
without investors' approval.

Any quarterly deferred sales charges you owe are paid with interest and
principal from certain bonds. If these amounts are not enough, the rest will be
paid out of distributions to you from the Fund's Capital and Income Accounts.

The Sponsors will pay advertising and selling expenses at no charge to the Fund.
If Fund expenses exceed initial estimates, the Fund will owe the excess. The
Trustee has a lien on Fund assets to secure reimbursement of Fund

                                       11
<PAGE>
expenses and may sell bonds if cash is not available.

PORTFOLIO CHANGES

The Sponsors and Trustee are not liable for any default or defect in a bond.

Unlike a mutual fund, the portfolio is designed to remain intact and we may keep
bonds in the portfolio even if their credit quality declines or other adverse
financial circumstances occur. However, we may sell a bond in certain cases if
we believe that certain adverse credit conditions exist or if a bond becomes
taxable.

If we maintain a secondary market in units but are unable to sell the units that
we buy in the secondary market, we will redeem units, which will affect the size
and composition of the portfolio. Units offered in the secondary market may not
represent the same face amount of bonds that they did originally.

We decide whether or not to offer units for sale that we acquire in the
secondary market after reviewing:
   o diversity of the portfolio;
   o size of the Fund relative to its original size;
   o ratio of Fund expenses to income;
   o current and long-term returns;
   o degree to which units may be selling at a premium over par; and
   o cost of maintaining a current prospectus.

FUND TERMINATION

The Fund will terminate following the stated maturity or sale of the last bond
in the portfolio. The Fund may also terminate earlier with the consent of
investors holding 51% of the units or if total assets of the Fund have fallen
below 40% of the face amount of bonds deposited. We will decide whether to
terminate the Fund early based on the same factors used in deciding whether or
not to offer units in the secondary market.

When the Fund is about to terminate you will receive a notice, and you will be
unable to sell your units after that time. On or shortly before termination, we
will sell any remaining bonds, and you will receive your final distribution. Any
bond that cannot be sold at a reasonable price may continue to be held by the
Trustee in a liquidating trust pending its final sale.

You will pay your share of the expenses associated with termination, including
brokerage costs in selling bonds. This may reduce the amount you receive as your
final distribution.

CERTIFICATES

Certificates for units are issued on request. You may transfer certificates by
complying with the requirements for redeeming certificates, described above. You
can replace lost or mutilated certificates by delivering satisfactory indemnity
and paying the associated costs.

TRUST INDENTURE

The Fund is a 'unit investment trust' governed by a Trust Indenture, a contract
among the Sponsors, the Trustee and the Evaluator, which sets forth their duties
and obligations and your rights. A copy of the Indenture is available to you on
request to the Trustee. The following summarizes certain provisions of the
Indenture.

The Sponsors and the Trustee may amend the Indenture without your consent:
   o to cure ambiguities;

                                       12
<PAGE>
   o to correct or supplement any defective or inconsistent provision;
   o to make any amendment required by any governmental agency; or
   o to make other changes determined not to be materially adverse to your best
     interest (as determined by the Sponsors).

Investors holding 51% of the units may amend the Indenture. Every investor must
consent to any amendment that changes the 51% requirement. No amendment may
reduce your interest in the Fund without your written consent.

The Trustee may resign by notifying the Sponsors. The Sponsors may remove the
Trustee without your consent if:
   o it fails to perform its duties and the Sponsors determine that its
     replacement is in your best interest; or
   o it becomes incapable of acting or bankrupt or its affairs are taken over by
      public authorities.
Investors holding 51% of the units may remove the Trustee. The Evaluator may
resign or be removed by the Sponsors and the Trustee without the consent of
investors. The resignation or removal of either becomes effective when a
successor accepts appointment. The Sponsors will try to appoint a successor
promptly; however, if no successor has accepted within 30 days after notice of
resignation, the resigning Trustee or Evaluator may petition a court to appoint
a successor.

Any Sponsor may resign as long as one Sponsor with a net worth of $2 million
remains and agrees to the resignation. The remaining Sponsors and the Trustee
may appoint a replacement. If there is only one Sponsor and it fails to perform
its duties or becomes bankrupt the Trustee may:
   o remove it and appoint a replacement Sponsor;
   o liquidate the Fund; or
   o continue to act as Trustee without a Sponsor.

Merrill Lynch, Pierce, Fenner & Smith Incorporated acts as agent for the
Sponsors.

The Trust Indenture contains customary provisions limiting the liability of the
Trustee, the Sponsors and the Evaluator.

LEGAL OPINION

Davis Polk & Wardwell, 450 Lexington Avenue, New York, New York 10017, as
special counsel for the Sponsors, has given an opinion that the units are
validly issued.

AUDITORS

Deloitte & Touche LLP, 2 World Financial Center, New York, New York 10281,
independent accountants, audited the Statement of Condition included in this
prospectus.

SPONSORS

The Sponsors are:
MERRILL LYNCH, PIERCE, FENNER & SMITH INCORPORATED (a wholly-owned subsidiary of
Merrill Lynch & Co., Inc.)
P.O. Box 9051,
Princeton, NJ 08543-9051
PRUDENTIAL SECURITIES INCORPORATED (an indirect wholly-owned subsidiary of the
Prudential Insurance Company of America)
One New York Plaza
New York, NY 10292
PAINEWEBBER INCORPORATED (a wholly-owned subsidiary of PaineWebber Group Inc.)
1285 Avenue of the Americas,
New York, NY 10019

                                       13
<PAGE>
Each Sponsor is a Delaware corporation and it, or its predecessor, has acted as
sponsor to many unit investment trusts. As a registered broker-dealer each
Sponsor buys and sells securities (including investment company shares) for
others (including investment companies) and participates as an underwriter in
various selling groups.

TRUSTEE

The Chase Manhattan Bank, Unit Investment Trust Department, 4 New York
Plaza--6th Floor, New York, New York 10004, is the Trustee.

It is supervised by the Federal Deposit Insurance Corporation, the Board of
Governors of the Federal Reserve System and New York State banking authorities.

UNDERWRITERS' AND SPONSORS' PROFITS

Underwriters receive sales charges when they sell units. The Sponsors also
realized a profit or loss on the initial deposit of the bonds. Any cash made
available by you to the Sponsors before the settlement date for those units may
be used in the Sponsors' businesses to the extent permitted by federal law and
may benefit the Sponsors.

A Sponsor or Underwriter may realize profits or sustain losses on bonds in the
Fund which were acquired from underwriting syndicates of which it was a member.

In maintaining a secondary market, the Sponsors will also realize profits or
sustain losses in the amount of any difference between the prices at which they
buy units and the prices at which they resell or redeem them.

PUBLIC DISTRIBUTION

The Sponsors do not intend to qualify units for sale in any foreign countries.
This prospectus does not constitute an offer to sell units in any country where
units cannot lawfully be sold.

CODE OF ETHICS

Merrill Lynch, as agent for the Sponsors, has adopted a code of ethics requiring
preclearance and reporting of personal securities transactions by its employees
with access to information on portfolio transactions. The goal of the code is to
prevent fraud, deception or misconduct against the Fund and to provide
reasonable standards of conduct.

YEAR 2000 ISSUES

Many computer systems were designed in such a way that they may be unable to
distinguish between the year 2000 and the year 1900 (commonly known as the 'Year
2000 Problem'). We do not expect that the computer system changes necessary to
prepare for the Year 2000 will cause any major operational difficulties for the
Fund. The Year 2000 Problem may adversely affect the issuers of the securities
contained in the Portfolio, but we cannot predict whether any impact will be
material to the Portfolio as a whole.

TAXES

The following summary describes some of the important income tax consequences of
holding units. It assumes that you are not a dealer, financial institution,
insurance company or other investor with special circumstances. You should
consult your own

                                       14
<PAGE>
tax adviser about your particular circumstances.

At the date of issue of each bond, counsel for the issuer delivered an opinion
to the effect that interest on the bond is exempt from regular federal income
tax. However, interest may be subject to state and local taxes and federal
alternative minimum tax. Neither we nor our counsel have reviewed the issuance
of the bonds, related proceedings or the basis for the opinions of counsel for
the issuers. We cannot assure you that the issuer (or other users) have complied
or will comply with any requirements necessary for a bond to be tax-exempt. If
any of the bonds were determined not to be tax-exempt, you could be required to
pay income tax for current and prior years, and if the Fund were to sell the
bond, it might have to sell it at a substantial discount.

In the opinion of our counsel, under existing law:

GENERAL TREATMENT OF THE FUND AND YOUR INVESTMENT

The Fund will not be taxed as a corporation for federal income tax purposes, and
you will be considered to own directly your share of each bond in the Fund.

INCOME OR LOSS UPON DISPOSITION

When all or part of your share of a bond is disposed of (for example, when the
Fund sells, exchanges or redeems a bond or when you sell or exchange your
units), you will generally recognize capital gain or loss. Your gain, however,
will generally be ordinary income to the extent of any accrued 'market
discount'. Generally you will have market discount to the extent that your basis
in a bond when you purchase a unit is less than its stated redemption price at
maturity (or, if it is an original issue discount bond, the issue price
increased by original issue discount that has accrued on the bond before your
purchase). You should consult your tax adviser in this regard.

If your net long-term capital gains exceed your net short-term capital losses,
the excess may be subject to tax at a lower rate than ordinary income. Any
capital gain from the Fund will be long-term if you are considered to have held
your investment on each bond for more than one year and short-term if you held
it for one year or less. If you are an individual and sell your units after
holding them for more than one year, you may be entitled to a 20% maximum
federal tax rate on any resulting gains. Consult your tax adviser in this
regard. Because the deductibility of capital losses is subject to limitations,
you may not be able to deduct all of your capital losses.

YOUR BASIS IN THE BONDS

Your aggregate basis in the bonds will be equal to the cost of your units,
including any sales charges and the organizational expenses you pay, adjusted to
reflect any accruals of 'original issue discount,' 'acquisition premium' and
'bond premium'. You should consult your tax adviser in this regard.

EXPENSES

If you are not a corporate investor, you will not be entitled to a deduction for
your share of fees and expenses of the Fund. Also, if you borrowed money in
order to purchase or carry your units, you will not be able to deduct the
interest on this borrowing for federal income tax purposes. The IRS may treat
your

                                       15
<PAGE>
purchase of units as made with borrowed money even if the money is not directly
traceable to the purchase of units.

STATE AND LOCAL TAXES

Under the income tax laws of the State and City of New York, the Fund will not
be taxed as a corporation. If you are a New York taxpayer, your income from the
Fund will not be tax-exempt in New York except to the extent that the income is
earned on bonds that are tax-exempt for New York purposes. Depending on where
you live, your income from the Fund may be subject to state and local taxation.
You should consult your tax adviser in this regard.

SUPPLEMENTAL INFORMATION

You can receive at no cost supplemental information about the Fund by calling
the Trustee. The supplemental information includes more detailed risk disclosure
about the types of bonds that may be in the Fund's portfolio, general risk
disclosure concerning any insurance securing certain bonds, and general
information about the structure and operation of the Fund. The supplemental
information is also available from the SEC.

                                       16

          DEFINED ASSET FUNDS,
          MUNICIPAL INSURED SERIES

          REPORT OF INDEPENDENT ACCOUNTANTS

          The Sponsors, Trustee and Holders
          of Defined Asset Funds,
          Municipal Insured Series:

          We have audited the accompanying statement of condition of
          Defined Asset Funds, Municipal Insured Series, including
          the portfolio, as of January 31, 1999 and the related
          statements of operations and of changes in net assets for
          the years ended January 31, 1999, 1998 and 1997. 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. Securities owned at January
          31, 1999, as shown in such portfolio, were confirmed to us
          by The Chase Manhattan Bank, 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 Defined Asset Funds, Municipal
          Insured Series at January 31, 1999 and the results of its
          operations and changes in its net assets for the
          above-stated years in conformity with generally accepted
          accounting principles.




          DELOITTE & TOUCHE LLP


          New York, N.Y.
          May 24, 1999






                                                      D - 1.

     DEFINED ASSET FUNDS,
     MUNICIPAL INSURED SERIES


     STATEMENT OF CONDITION
     As of January 31, 1999

<TABLE>
     <S>                                                                                <C>             <C>
TRUST PROPERTY:
  Investment in marketable securities -
     at value (cost $ 4,545,920 )(Note 1).........                                                 $ 5,103,847
  Accrued interest ...............................                                                      73,964
  Accrued interest on Segregated Bond (Note 5) ...                                                       1,630
  Cash - income ..................................                                                      21,013
  Cash - income on Segregated Bond ...............                                                      10,088
  Cash - principal ...............................                                                      54,981
                                                                                                   -----------
    Total trust property .........................                                                   5,265,523


LESS LIABILITIES:
  Income advance from Trustee.....................                                 $    76,701
  Other advance from Trustee (Note 5) ............                                       5,146
  Accrued Sponsors' fees .........................                                         197          82,044
                                                                                   -----------     -----------


NET ASSETS, REPRESENTED BY:
  5,349 units of fractional undivided
     interest outstanding (Note 3)................                                   5,165,400

  Undistributed net investment income ............                                      18,079     $ 5,183,479
                                                                                   -----------     ===========

UNIT VALUE ($ 5,183,479 / 5,349 units )...........                                                 $    969.06
                                                                                                   ===========


</TABLE>


                 See Notes to Financial Statements.

















                                                      D - 2.

     DEFINED ASSET FUNDS,
     MUNICIPAL INSURED SERIES



     STATEMENTS OF OPERATIONS
<TABLE>
<CAPTION>


                                                                               Years Ended January 31,
                                                                        1999              1998              1997
                                                                        ----              ----              ----

     <S>                                                            <C>               <C>               <C>
INVESTMENT INCOME:
  Interest income ........................                     $   310,985       $   440,010       $   547,034
  Interest income on Segregated
    Bond (Note 5) ........................                          20,319            23,233            26,821
  Trustee's fees and expenses ............                          (7,266)           (9,120)          (10,556)
  Sponsors' fees .........................                          (2,650)           (4,224)           (3,937)
                                                               ------------------------------------------------
  Net investment income ..................                         321,388           449,899           559,362
                                                               ------------------------------------------------


REALIZED AND UNREALIZED GAIN (LOSS)
  ON INVESTMENTS:
  Realized gain on
    securities sold or redeemed ..........                         158,647           145,330            12,314
  Unrealized appreciation (depreciation)
    of investments .......................                        (142,833)          330,813          (336,059)
                                                               ------------------------------------------------
  Net realized and unrealized
    gain (loss) on investments ...........                          15,814           476,143          (323,745)
                                                               ------------------------------------------------


NET INCREASE IN NET ASSETS
  RESULTING FROM OPERATIONS ..............                     $   337,202       $   926,042       $   235,617
                                                               ================================================


</TABLE>


                  See Notes to Financial Statements.















                                                      D - 3.

     DEFINED ASSET FUNDS,
     MUNICIPAL INSURED SERIES



     STATEMENTS OF CHANGES IN NET ASSETS
<TABLE>
<CAPTION>


                                                                               Years Ended January 31,
                                                                        1999              1998              1997
                                                                        ----              ----              ----

     <S>                                                            <C>               <C>               <C>
OPERATIONS:
  Net investment income ..................                     $   321,388       $   449,899       $   559,362
  Realized gain on
    securities sold or redeemed ..........                         158,647           145,330            12,314
  Unrealized appreciation (depreciation)
    of investments .......................                        (142,833)          330,813          (336,059)
                                                               ------------------------------------------------
  Net increase in net assets
    resulting from operations ............                         337,202           926,042           235,617
                                                               ------------------------------------------------
DISTRIBUTIONS TO HOLDERS (Note 2):
  Income  ................................                        (302,932)         (427,834)         (532,524)
  Principal ..............................                          (1,509)         (889,924)           (9,819)
                                                               ------------------------------------------------
  Total distributions ....................                        (304,441)       (1,317,758)         (542,343)
                                                               ------------------------------------------------
SHARE TRANSACTIONS:
  Deferred sales charge (Note 5):
    Income ...............................                         (21,602)                             (27,739)
    Principal ............................                         (49,882)          (91,878)           (77,237)

  Redemption amounts:
    Income ...............................                          (3,858)           (5,143)           (1,214)
    Principal ............................                      (1,851,161)       (1,934,916)         (395,905)
                                                               ------------------------------------------------
  Net share transactions .................                      (1,926,503)       (2,031,937)         (502,095)
                                                               ------------------------------------------------

NET DECREASE IN NET ASSETS ...............                      (1,893,742)       (2,423,653)         (808,821)

NET ASSETS AT BEGINNING OF YEAR ..........                       7,077,221         9,500,874        10,309,695
                                                               ------------------------------------------------
NET ASSETS AT END OF YEAR ................                     $ 5,183,479       $ 7,077,221       $ 9,500,874
                                                               ================================================
PER UNIT:
  Income distributions during
    year .................................                     $     47.70       $     51.97       $     55.94
                                                               ================================================
  Principal distributions during
    year .................................                     $      0.28       $    106.46       $      1.05
                                                               ================================================
  Net asset value at end of
    year .................................                     $    969.06       $    973.22       $  1,028.57
                                                               ================================================
TRUST UNITS:
  Redeemed during year ...................                           1,923             1,965               387
  Outstanding at end of year .............                           5,349             7,272             9,237
                                                               ================================================
</TABLE>
                      See Notes to Financial Statements.

                                                            D - 4.

          DEFINED ASSET FUNDS,
          MUNICIPAL INSURED SERIES

          NOTES TO FINANCIAL STATEMENTS

     1.   SIGNIFICANT ACCOUNTING POLICIES

     The Fund is registered  under the Investment  Company Act of 1940 as a Unit
Investment Trust. The following is a summary of significant  accounting policies
consistently   followed  by  the  Fund  in  the  preparation  of  its  financial
statements.  The policies are in conformity with generally  accepted  accounting
principles.
           (A)      Securities are stated at value as determined by the
                    Evaluator based on bid side evaluations for the securities.

           (B)      The Fund is not subject to income taxes. Accordingly, no
                    provision for such taxes is required.

           (C)      Interest income is recorded as earned.

     2.   DISTRIBUTIONS

     A  distribution  of net  investment  income is made to Holders  each month.
Receipts other than interest,  after  deductions for  redemptions and applicable
expenses, are also distributed periodically.

     3.   NET CAPITAL
<TABLE>
     <S>                                                                                                <C>
     {Original Units and Unit Cost at Date of Deposit ...........                        9,624       9,609,759   }
     Cost of 5,349 units at Date of Deposit .....................                                  $ 5,341,085
     Transfer to capital of interest on Segregated Bond (Note 5)                                        99,646
     Transfer to capital of interest ............................                                       13,429
     Redemptions of units - net cost of 4,275 units redeemed
       less redemption amounts (principal).......................                                       86,695
     Deferred sales charge (Note 5) .............................                                     (347,736)
     Realized gain on securities sold or redeemed ...............                                      315,606
     Principal distributions ....................................                                     (901,252)
     Unrealized appreciation of investments......................                                      557,927
                                                                                                   -----------

     Net capital applicable to Holders ..........................                                  $ 5,165,400
                                                                                                   ===========
</TABLE>
     4.   INCOME TAXES

     As of January 31, 1999,  unrealized  appreciation of investments,  based on
cost for Federal income tax purposes,  aggregated $557,927, all of which related
to appreciated securities.  The cost of investment securities for Federal income
tax purposes was $4,545,920 at January 31, 1999.

                                                      D - 5.

          DEFINED ASSET FUNDS,
          MUNICIPAL INSURED SERIES

          NOTES TO FINANCIAL STATEMENTS

     5.   DEFERRED SALES CHARGE

     $326,073 face amount of Clark Cnty., NV, Las  Vegas-McCarran  Intl. Airport
Passenger Fac. Charge Rev.  Bonds,  1992 Ser. A have been segregated to fund the
deferred sales  charges.  The sales charges are being paid for with the interest
received  and by periodic  sales or maturity of these  bonds.  A deferred  sales
charge  of $2.75  per Unit is  charged  on a  quarterly  basis,  and paid to the
Sponsors annually,  by the Trustee on behalf of the Holders,  up to an aggregate
of $55.00 per Unit over the first  five years of the life of the Fund.  Should a
Holder  redeem Units prior to the end of the fourth  anniversary  of the Fund, a
contingent deferred sales charge of $25, $15, $10 or $5 per Unit will be charged
in the first,  second,  third or fourth year of the Fund,  respectively,  and is
included  with  principal  redemption  amounts  in  the  accompanying  financial
statements.



                                                     D - 6.

     DEFINED ASSET FUNDS,
     MUNICIPAL INSURED SERIES

     PORTFOLIO
     As of January 31, 1999

<TABLE>
<CAPTION>

                                               Rating                             {PE VER C.}     Optional
     Portfolio No. and Title of              of Issues      Face                                 Redemption
            Securities                        (1) (4)      Amount    Coupon       Maturities(3) Provisions(3)    Cost      Value(2)
            ----------                       ---------  ----------- -----------   ------------  ------------  ----------  ---------

<S>                                          <C>        <C>         <C>           <C>          <C>          <C>         <C>
   1 Department of Wtr. and Pwr. of the City    AAA     $    40,000     6.125 %      2033      01/15/03     $    39,640 $    43,799
     of Los Angeles, CA, Elec. Plant Rev.                    {544508KD5  }                     @  102.000
     Bonds, Iss. of 1993 (Financial Guaranty
     Ins.)

   2 Illinois Dev. Fin. Auth., Poll. Ctl.       AAA         735,000     5.900        2028      06/01/03         706,357     786,377
     Rev. Rfdg. Bonds (Central IL Pub. Serv.                 {451888CF6  }                     @  102.000
     Co.), 1993 Ser. B-2 (MBIA Ins.)

   3 Illinois Hlth. Fac. Auth., Central         AAA         325,000     5.750        2022      11/02/02         304,918     339,674
     Dupage Hlth. Sys. Rev. Bonds, Ser. 1992                 {45200KBA5  }                     @  102.000
     (Wyndemere Retirement Comm. Proj.)
     (MBIA Ins.)

   4 City of Cedar Rapids, IA, Poll. Ctl.       AAA          60,000     5.500        2023      11/01/03          54,952      62,534
     Rev. Rfdg. Bonds (Iowa Elec. Light and                  {150560AR1  }                     @  102.000
     Pwr. Co. Proj.), Ser. 1993 (MBIA Ins.)


   5 Maine State Hsg. Auth., Mtge. Purchase     AAA         820,000     5.700        2026      02/01/04         764,379     843,181
     Rev. Bonds, 1994 Ser. A, (MBIA Ins.)                     {560523W65  }                    @  102.000

   6 Clark Cnty., NV, Las Vegas-McCarran        AAA         785,000     6.000        2022(6)   07/01/02         767,950     861,961
     Intl. Airport Passenger Fac. Charge                     {181006AZ0  }                     @  102.000
     Rev. Bonds, 1992 Ser. A (AMBAC Ins.)
     (5)

   7 New Hampshire Higher Educl. and Hlth.      AAA         855,000     5.750        2023      08/15/04         806,573     904,770
     Fac. Auth., Hosp. Rev. Bonds, Mary                      {644618U40  }                     @  102.000
     Hitchcock Mem. Hosp. Iss., Ser. 1994
     (Financial Guaranty Ins.)

   8 Rhode Island Depositors Econ. Prot.        AAA          80,000     5.750        2021      None              74,846      89,092
     Corp., Spec. Oblig. Rfdg. Bonds, 1993                   {76218KFC2  }
     Ser. A (MBIA Ins.)


</TABLE>


                                                   D - 7.

     DEFINED ASSET FUNDS,
     MUNICIPAL INSURED SERIES

     PORTFOLIO
     As of January 31, 1999

<TABLE>
<CAPTION>

                                              Rating                             {PE VER C.}     Optional
     Portfolio No. and Title of              of Issues      Face                                 Redemption
            Securities                        (1) (4)       Amount    Coupon      Maturities(3) Provisions(3)    Cost      Value(2)
            ----------                       ---------  ----------- -----------   ------------  ------------  ----------  ---------

<S>                                          <C>        <C>         <C>           <C>          <C>          <C>         <C>
   9 Rhode Island Hlth. and Educl. Bldg.        AAA     $   250,000     6.500 %      2024(6)   11/15/02     $   253,285 $   280,515
     Corp., Higher Educ. Fac. Rev. Bonds,                    {762242XB6  }                     @  102.000
     Roger Williams Univ. Iss., Ser. 1992
     (Connie Lee Ins.)                                       70,000     6.500        2024      11/15/02          70,920      77,513
                                                             {762242XL4  }                     @  102.000

  10 Wisconsin Hlth. and Educl. Fac. Auth.      AAA         810,000     5.250        2023      08/15/03         702,100     814,431
     (Aurora Hlth. Care Oblig. Grp.), Rev.                   {97710AUK8  }                     @  102.000
     Bonds, Ser. 1993 (MBIA Ins.)

                                                        -----------                                           ---------   ---------
     TOTAL                                              $ 4,830,000                                         $ 4,545,920 $ 5,103,847
                                                        ===========                                           =========   =========

                                                                           See Notes to Portfolio.
</TABLE>






                                                                 D - 8.

     DEFINED ASSET FUNDS,
     MUNICIPAL INSURED SERIES

     NOTES TO PORTFOLIO
     As of January 31, 1999

(1)  The  ratings of the bonds are by  Standard & Poor's  Ratings  Group,  or by
     Moody's Investors Service, Inc. if followed by "(m)", or by Fitch Investors
     Service,  Inc. if followed by "(f)";  "NR"  indicates that this bond is not
     currently  rated  by any  of the  above-mentioned  rating  services.  These
     ratings have been  furnished by the Evaluator  but not  confirmed  with the
     rating agencies.

(2)  See Notes to Financial Statements.

(3)  Optional redemption provisions, which may be exercised in whole or in part,
     are initially at prices of par plus a premium,  then subsequently at prices
     declining to par.  Certain  securities  may provide for  redemption  at par
     prior or in  addition  to any  optional or  mandatory  redemption  dates or
     maturity,  for  example,   through  the  operation  of  a  maintenance  and
     replacement fund, if proceeds are not able to be used as contemplated,  the
     project is  condemned  or sold or the project is  destroyed  and  insurance
     proceeds are used to redeem the securities. Many of the securities are also
     subject to mandatory sinking fund redemption  commencing on dates which may
     be  prior  to the  date on which  securities  may be  optionally  redeemed.
     Sinking fund redemptions are at par and redeem only part of the issue. Some
     of the  securities  have  mandatory  sinking funds which  contain  optional
     provisions  permitting  the  issuer to  increase  the  principal  amount of
     securities  called  on  a  mandatory  redemption  date.  The  sinking  fund
     redemptions   with  optional   provisions   may,  and  optional   refunding
     redemptions  generally  will,  occur at times when the redeemed  securities
     have an offering side  evaluation  which  represents a premium over par. To
     the extent that the  securities  were  acquired at a price  higher than the
     redemption  price, this will represent a loss of capital when compared with
     the Public  Offering Price of the Units when acquired.  Distributions  will
     generally be reduced by the amount of the income which would otherwise have
     been paid with respect to redeemed securities and there will be distributed
     to Holders any  principal  amount and premium  received on such  redemption
     after  satisfying any  redemption  requests for Units received by the Fund.
     The estimated current return may be affected by redemptions.

(4)  Insured by the indicated municipal bond insurance company.

(5)  A portion of these bonds have been  segregated  to fund the deferred  sales
     charges.

(6)  Bonds with an aggregate  face amount of $1,035,000  have been  pre-refunded
     and are expected to be called for  redemption  on the  optional  redemption
     provision dates shown.


                              D - 9.

<PAGE>
                             Defined
                             Asset FundsSM


HAVE QUESTIONS ?                         MUNICIPAL INSURED SERIES
Request the most recent free             (A Unit Investment Trust)
Information Supplement                   ---------------------------------------
that gives more details about            This Prospectus does not contain
the Fund, by calling:                    complete information about the
The Chase Manhattan Bank                 investment company filed with the
1-800-323-1508                           Securities and Exchange Commission in
                                         Washington, D.C. under the:
                                         o Securities Act of 1933 (file no.
                                         33-54565) and
                                         o Investment Company Act of 1940 (file
                                         no. 811-1777).
                                         TO OBTAIN COPIES AT PRESCRIBED RATES--
                                         WRITE: Public Reference Section of the
                                         Commission
                                         450 Fifth Street, N.W., Washington,
                                         D.C. 20549-6009
                                         CALL: 1-800-SEC-0330.
                                         VISIT: http://www.sec.gov.
                                         ---------------------------------------
                                         No person is authorized to give any
                                         information or representations about
                                         this Fund not contained in this
                                         Prospectus or the Information
                                         Supplement, and you should not rely on
                                         any other information.
                                         ---------------------------------------
                                         When units of this Fund are no longer
                                         available, this Prospectus may be used
                                         as a preliminary prospectus for a
                                         future series, but some of the
                                         information in this Prospectus will be
                                         changed for that series.
                                         Units of any future series may not be
                                         sold nor may offers to buy be accepted
                                         until that series has become effective
                                         with the Securities and Exchange
                                         Commission. No units can be sold in any
                                         State where a sale would be illegal.


                                                      15059--5/99


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