EQUITY INVESTOR FUND PREMIER WORLD PORTFOLIO DEF ASSET FUNDS
485BPOS, 1999-11-12
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   AS FILED WITH THE SECURITIES AND EXCHANGE COMMISSION ON NOVEMBER 10, 1999

                                                      REGISTRATION NO. 333-19655
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------

                       SECURITIES AND EXCHANGE COMMISSION

                             WASHINGTON, D.C. 20549

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

                         POST-EFFECTIVE AMENDMENT NO. 2
                                       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:

                              EQUITY INVESTOR FUND
                           PREMIER WORLD PORTFOLIO--1
                              DEFINED ASSET FUNDS

B. NAMES OF DEPOSITORS:

                   MERRILL LYNCH, PIERCE, FENNER & SMITH INC.
                           SALOMON SMITH BARNEY INC.
                       PRUDENTIAL SECURITIES INCORPORATED
                            PAINEWEBBER INCORPORATED
                           DEAN WITTER REYNOLDS INC.

C. COMPLETE ADDRESSES OF DEPOSITORS' PRINCIPAL EXECUTIVE OFFICES:


 MERRILL LYNCH, PIERCE,
     FENNER & SMITH
      INCORPORATED
   DEFINED ASSET FUNDS
  POST OFFICE BOX 9051
PRINCETON, NJ 08543-9051                          SALOMON SMITH BARNEY INC.
                                                        388 GREENWICH
                                                     STREET--23RD FLOOR
                                                     NEW YORK, NY 10013



  PRUDENTIAL SECURITIES  PAINEWEBBER INCORPORATED DEAN WITTER REYNOLDS INC.
      INCORPORATED          1285 AVENUE OF THE         TWO WORLD TRADE
   ONE NEW YORK PLAZA            AMERICAS            CENTER--59TH FLOOR
   NEW YORK, NY 10292       NEW YORK, NY 10019       NEW YORK, NY 10048


D. NAMES AND COMPLETE ADDRESSES OF AGENTS FOR SERVICE:


  TERESA KONCICK, ESQ.       ROBERT E. HOLLEY         MICHAEL KOCHMANN
      P.O. BOX 9051          1200 HARBOR BLVD.        388 GREENWICH ST.
PRINCETON, NJ 08543-9051    WEEHAWKEN, NJ 07087      NEW YORK, NY 10013

                                COPIES TO:           DOUGLAS LOWE, ESQ.
                          PIERRE DE SAINT PHALLE, DEAN WITTER REYNOLDS INC.
   LEE B. SPENCER, JR.             ESQ.                TWO WORLD TRADE
   ONE NEW YORK PLAZA      450 LEXINGTON AVENUE      CENTER--59TH FLOOR
   NEW YORK, NY 10292       NEW YORK, NY 10017       NEW YORK, NY 10048


The issuer has registered an indefinite number of Units under the Securities Act
of 1933 pursuant to Rule 24f-2 and filed the Rule 24f-2 Notice for the most
recent fiscal year on March 23, 1999.

Check box if it is proposed that this filing will become effective on November
19, 1999 pursuant to paragraph (b) of Rule 485.  / x /

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<PAGE>
                                     DEFINED ASSET FUNDSSM
- --------------------------------------------
- ----------------------------------


                              EQUITY INVESTOR FUND
                              PREMIER WORLD PORTFOLIO--1
                              (A UNIT INVESTMENT TRUST)
                              O   SEMI-ANNUAL INCOME
                              O   PROFESSIONAL SELECTION
                              O   DIVERSIFICATION
                              O   REINVESTMENT OPTION



SPONSORS:
Merrill Lynch,
Pierce, Fenner & Smith         -------------------------------------------------
Incorporated                   The Securities and Exchange Commission has not
Salomon Smith Barney Inc.      approved or disapproved these Securities or
Prudential Securities          passed upon the adequacy of this prospectus. Any
Incorporated                   representation to the contrary is a criminal
PaineWebber Incorporated       offense.
Dean Witter Reynolds Inc.      Prospectus dated November 19, 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 or 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, risk tolerance 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 ON THIS PROSPECTUS IS AS OF THE EVALUATION DATE, JULY
31, 1999.


CONTENTS
                                                                PAGE
                                                          -----------
Risk/Return Summary.....................................           3
What You Can Expect From Your Investment................           5
   Income...............................................           5
   Records and Reports..................................           5
The Risks You Face......................................           5
   Concentration Risk...................................           5
   Foreign Issuer Risk..................................           5
   European Risk Factors................................           6
   Litigation and Legislation Risks.....................           6
Selling Units...........................................           6
   Sponsors' Secondary Market...........................           7
   Selling Units to the Trustee.........................           7
How The Fund Works......................................           7
   Pricing..............................................           7
   Evaluations..........................................           7
   Income...............................................           8
   Expenses.............................................           8
   Portfolio Changes....................................           8
   Fund Termination.....................................           9
   Certificates.........................................           9
   Trust Indenture......................................           9
   Legal Opinion........................................          10
   Auditors.............................................          10
   Sponsors.............................................          10
   Trustee..............................................          10
   Underwriters' and Sponsors' Profits..................          10
   Public Distribution..................................          11
   Code of Ethics.......................................          11
   Year 2000 Issues.....................................          11
Taxes...................................................          11
Supplemental Information................................          12
Financial Statements....................................         D-1


                                       2
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RISK/RETURN SUMMARY


       1.  WHAT IS THE PORTFOLIO'S OBJECTIVE?
        O  The objective of this Defined Fund is total return through a
           combination of capital appreciation and, to a lesser extent,
           dividend income by investing in a diversified portfolio of
           common stocks issued primarily by some of the largest
           non-U.S. companies with records of uninterrupted dividends
           over at least ten years.
       2.  WHAT IS THE FUND'S INVESTMENT STRATEGY?
        O  The Portfolio contains    common stocks issued primarily by
           companies that are among the largest non-U.S. companies in
           annual revenue, with established records of earnings and
           uninterrupted dividend payments over at least 10 years as of
           the initial deposit, August 7, 1997. The stocks contained in
           the Portfolio are generally considered to be 'blue chip'
           stocks.
           -- The Fund is designed for investors who want to invest a
              portion of their equity portfolio in securities of
              foreign issuers.
           -- Since all of the Portfolio stocks are in the
               international sector, this Fund is not designed to be a
              complete equity investment program.
        o  The Fund plans to hold the stocks in the Portfolio for
           approximately two years. The Fund will terminate by August
           31, 2001.
       3.  WHAT COUNTRIES AND INDUSTRY SECTORS ARE REPRESENTED IN THE
           PORTFOLIO?
           Based upon current market values, the following countries
           are represented in the Portfolio:



                                                 APPROXIMATE
                                                  PORTFOLIO
                                                  PERCENTAGE
/ / France                                            %
/ / United Kingdom
/ / Germany
/ / Netherlands
/ / Japan
/ / Switzerland
/ / Finland
/ / Spain
/ / Australia
/ / Canada
/ / Sweden
/ / Hong Kong


Based upon the principal business of each issuer and current market values, the
following industries are represented in the Portfolio:


                                                  APPROXIMATE
                                                   PORTFOLIO
                                                   PERCENTAGE
/ / Financial Services/Insurance/Banking               %
/ / Utilities/Telecommunications
/ / Food/Beverage
/ / Machinery/Automotive/Aerospace
/ / Manufacturing
/ / Retail
/ / Chemical/Pharmaceutical
/ / Building Materials
/ / Natural Resources
/ / Oil
/ / Other



       4.  WHAT ARE THE SIGNIFICANT RISKS?
           YOU CAN LOSE MONEY BY INVESTING IN THE FUND. THIS CAN HAPPEN
           FOR VARIOUS REASONS, INCLUDING:
        o  Stock prices can be volatile.
        o  Dividend rates on the stocks or share prices may decline
           during the life of the Fund.
        o  Because the Portfolio is concentrated in the sector, adverse
           developments in this industry may affect the value of your
           units.
        o  The Fund may continue to hold the stocks originally selected
           even though their market value or yield may have changed.
        o  Investments in securities of foreign issuers involve risks
           that are different from investments in securities of
           domestic issuers (see The Risks You Face in the back of the
           prospectus).
       5.  IS THIS FUND APPROPRIATE FOR YOU?
           Yes, if you want semi-annual income from foreign stocks. You
           will benefit from a professionally selected and supervised
           portfolio whose risk is reduced by investing in equity
           securities of different foreign issuers.
           The Fund is not appropriate for you if you are unwilling to
           take the risk involved with an international equity
           investment.
       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.


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           ESTIMATED ANNUAL OPERATING EXPENSES
                                                           AMOUNT
                                                     PER 1,000 UNITS
                                                     ---------------
                                                        $      0.
           Trustee's Fee
                                                        $      0.
           Portfolio Supervision,
           Bookkeeping and
           Administrative Fees
           (including updating
           and organizational
           expenses)
                                                        $      0.
           Other Operating Expenses
                                                     ---------------
                                                        $      1.
           TOTAL


           The Sponsors historically paid organization costs and
           updating expenses.
           You will pay an initial up-front sales fee of
           approximately 2.75% and a deferred sales charge of $1.625
           per 1,000 units ($6.50 annually) to be deducted from the
           net asset value of the Portfolio quarterly on the 10th of
           each February, May, August and November. The fee will be
           reduced for quantity purchases, as follows:



                                              YOUR MAXIMUM
                                                 SALES FEE
                    IF YOU INVEST:                WILL BE:
           --------------------------------  -----------------
           Less than $250,000                         2.75%
           $250,000 to $499,999                       2.25%
           $500,000 to $749,999                       1.75%
           $750,000 to $999,999                       1.25%
           $1,000,000 or more                         1.00%



       7.  IS THE FUND MANAGED?
           Unlike a mutual fund, the Fund is not managed and stocks are
           not sold because of market changes. The Sponsors monitor the
           portfolio and may instruct the Trustee to sell securities
           under certain limited circumstances.

       8.  HOW DO I BUY UNITS?
           The minimum investment is $250.
           You can buy units from the Sponsors.
           UNIT PRICE PER 1,000 UNITS            $
           (as of July 31, 1999)
           Unit price is based on the net asset value of the Fund plus
           the up-front sales fee.
           The Portfolio stocks are valued by the Trustee on the basis
           of their closing prices at 4:00 p.m. Eastern time every
           business day. Unit price changes every day with changes in
           the prices of the stocks.

       9.  HOW DO I SELL UNITS?
           You may sell your units at any time to the Sponsors or the
           Trustee for the net asset value determined at the close of
           business on the date of sale, less the costs of liquidating
           securities to meet the redemption.

      10.  HOW ARE DISTRIBUTIONS MADE AND TAXED?
           The Fund pays monthly distributions of any dividend income,
           net of expenses, on the 25th of June and December each year,
           if you own units on the 10th of those months. Distributions
           of ordinary income will be dividends for federal income tax
           purposes and may be eligible for the dividends-received
           deduction for corporations. Distributions to foreign
           investors will generally be subject to withholding taxes.
      11.  WHAT OTHER SERVICES ARE AVAILABLE?
           REINVESTMENT
           You may choose to reinvest your distributions into
           additional units of the Fund. Unless you choose
           reinvestment, you will receive your distributions in cash.
           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 designated exchanges.


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WHAT YOU CAN EXPECT FROM YOUR INVESTMENT

INCOME

Because the Fund generally pays dividends as they are received, individual
income payments will fluctuate based upon the amount of dividends declared and
paid by each issuer. Other reasons your income may vary are:
   o changes to the Portfolio because of sales of securities;
   o changes in the Fund's expenses; and
   o the amount of dividends declared and paid.

There can be no assurance that any dividends will be declared or paid.

RECORDS AND REPORTS

You will receive:
o a notice from the Trustee if new equity securities are deposited in exchange
  or substitution for equity securities originally deposited;
o annual reports on Fund activity; and
o annual tax information. This will also be sent to the IRS. You must report the
  amount of income received during the year. Please contact your tax advisor in
  this regard.

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

THE RISKS YOU FACE

CONCENTRATION RISK

When stocks in a particular industry make up 25% or more of the Portfolio, it is
said to be 'concentrated' in that industry, which makes the Portfolio less
diversified.

FOREIGN ISSUER RISK

Investments in securities of foreign issuers involve risks that are different
from investments in securities of domestic issuers. They may include:
   o adverse political and economic developments;
   o possibility of withholding taxes;
   o exchange controls or other governmental restrictons on the payment of
     dividends;
   o conversion of local currency to U.S. dollars upon the sale of Portfolio
      Securities;
   o less publicly available information; and
   o absence of uniform accounting, auditing and financial reporting standards,
      practices and requirements.

American Depositary Shares and Receipts

American depositary shares and receipts are issued by an American bank or trust
company to evidence ownership of underlying common stock issued by a foreign
corporation and deposited in a depositary facility. The terms and conditions of
the depositary facility may result in less liquidity or lower market prices for
the ADRs than for the underlying shares. Certain of the Portfolio Securities
were purchased in ADR form in the United States.

Foreign Currency Risk

Because securities of non-U.S. issuers generally pay dividends and trade in
foreign currencies, there is the risk that the U.S. dollar value of these
securities will vary widely with fluctuations in foreign exchange rates.

At the present time the Sponsor does not believe that any of the Portfolio
Securities is subject to exchange control restrictions which would materially
interfere with payment to the Portfolio of amounts due on the Portfolio
Securities. The adoption of exchange control regulations or other legal
restrictions could have an adverse impact on the marketability of international
securities in the Portfolio and on the ability of the Portfolio to satisfy
redemptions. There can be no assurance that

                                       5
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exchange control regulations might not be adopted in the future that would
adversely affect payments to the Portfolio.

EUROPEAN RISK FACTORS

The economies of individual European countries may differ unfavorably from the
U.S. economy in gross national product, growth of gross national product, rate
of inflation, capital reinvestment, resource self-sufficiency and balanceof
payments position.

For a number of years, certain European countries have been seeking economic and
political unification which would reduce barriers between countries, increase
competition among companies, reduce government subsidies in certain industries
and reduce or eliminate currency fluctuations among these European countries.

On January 1, 1999, the European Monetary Union (EMU) introduced a new single
currency, the euro. A newly created European Central Bank (ECB) has the
authority to direct the monetary policy for this region, including the
determination of interest rates. These changes may affect the European capital
markets, and the related risks may increase the volatility in European capital
and currency markets. This, in turn, may affect the Portfolio's performance.

No assurances can be given that changes planned for Europe can be successfully
implemented or that these changes will not result in lower market prices for the
securities in the Portfolio.

Risks associated with investing in European securities may be heightened in the
case of investments in smaller European securities markets because of risks due
to the inexperience of financial intermediaries, the lack of modern technology,
the lack of a sufficient capital base and the possibility of permanent or
temporary termination of trading in those markets.

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 Fund by:
   o reducing the dividends-received deduction or
   o increasing the corporate tax rate resulting in less money available for
     dividend payments.

SELLING UNITS

You can sell your units at any time for a price based on their net asset value.
Your net asset value is calculated each business day by:
   o adding the value of the Portfolio securities, 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.

SPONSORS' SECONDARY MARKET

While we are not obligated to do so, we will buy back units at net asset value
less any remaining deferred sales fee and the cost of liquidating securities to
meet the redemption. We may resell the units to other buyers or to the Trustee.

We have maintained a secondary market continuously for more than 28 years, but
we

                                       6
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could discontinue it without prior notice for any business reason.

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 contacting your broker, dealer or financial
institution that holds your units in street name. 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 will sell your units in the over-the-counter market if it
believes it can obtain a higher price. In that case, you will receive the net
proceeds of the sale.

If the Fund does not have cash available to pay you for the units you are
selling we will select securities to be sold. These sales could be made at times
when the securities would not otherwise be sold and may result in your receiving
less than you paid for your unit 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
     securities not reasonably practicable; and
   o for any other period permitted by SEC order.

HOW THE FUND WORKS

PRICING

Units are charged a combination of initial and deferred sales fees.

The deferred sales fee is generally a quarterly charge of $1.625 per 1,000
units.

It is anticipated that securities will not be sold to pay the deferred sales fee
until after the date of the last installment. Investors will be at risk for
market price fluctuations in the securities from the several installment accrual
dates to the dates of actual sale of securities to satisfy this liability.

EVALUATIONS

The Trustee values the securities on each business day (i.e., any day other than
Saturdays, Sundays and the following holidays as observed by the New York Stock
Exchange: New Year's Day, Martin Luther King, Jr. Day, Presidents' Day, Good
Friday, Memorial Day, Independence Day, Labor Day, Thanksgiving and Christmas).
In addition, for individual stocks, 'business day' shall also exclude various
local holidays in the relevant foreign countries. If the securities are listed
on a national securities exchange or the Nasdaq National Market, evaluations are
generally based on closing sales prices on that exchange or that system or, if
closing sales prices are not

                                       7
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available, at the mean between the closing bid and offer prices.

INCOME
o The annual U.S. dollar income per unit, after deducting estimated annual
  Portfolio expenses per unit, will depend primarily upon the amount of
  dividends declared and paid by the issuers of the securities, fluctuations in
  U.S. dollar exchange rates and changes in the expenses of the Portfolio and,
  to a lesser degree, upon the level of purchases of additional securities and
  sales of securities. There is no assurance that dividends on the securities
  will continue at their current levels or be declared at all.
o Each unit receives an equal share of distributions of dividend income net of
   estimated expenses. Because dividends on the securities are not received at a
  constant rate throughout the year, any distribution may be more or less than
  the amount then credited to the income account. The Trustee credits dividends
  received to an Income Account which are converted into U.S. dollars at the
  current exchange rate and other receipts to a Capital Account after conversion
  into U.S.dollars at the current rate. 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 a fee monthly. It also benefits when it holds cash for the
Fund in non-interest bearing accounts. The Trustee may also receive additional
amounts:
   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 70 cents per 1,000 units 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 Fund's registration statement yearly are now chargeable to the
Fund. 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. Certain of these expenses were previously paid for
by the Sponsors.

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

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 expenses and
may sell securities if cash is not available.

PORTFOLIO CHANGES

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

                                       8
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will affect the size and composition of the portfolio.

We decide whether 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; and
   o cost of maintaining a current prospectus.

FUND TERMINATION

When the Fund is about to terminate you will receive a notice, and you will be
unable to sell your units after that time. Unless you choose to receive an
in-kind distribution of securities, we will sell any remaining securities, and
you will receive your final distribution in cash.

You will pay your share of the expenses associated with termination, including
brokerage costs in selling securities. 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 deliverying 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 and the Trustee, 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;
   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 Trustee may
resign or be removed by the Sponsors without the consent of investors. The
resignation or removal of the Trustee 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 may petition a court to appoint a successor.

                                       9
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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 and the Sponsors.

LEGAL OPINION

Davis Polk & Wardwell, 450 Lexington Avenue, New York, New York 10017, as
special counsel for the Sponsor, 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:
MERRILL LYNCH, PIERCE, FENNER & SMITH INCORPORATED (a wholly-owned subsidiary of
Merrill Lynch & Co., Inc.)
P.O. Box 9051,
Princeton, NJ 08543-9051
SALOMON SMITH BARNEY INC. (an indirectly wholly-owned subsidiary of Citigroup
Inc.)
388 Greenwich Street--23rd Floor,
New York, NY 10013
PRUDENTIAL SECURITIES INCORPORATED (an
indirect wholly-owned subsidiary of the
Prudential Insurance Company of America)
One New York Plaza
New York, NY 10292
DEAN WITTER REYNOLDS INC. (a principal operating subsidiary of Morgan Stanley
Dean Witter & Co.)
Two World Trade Center--59th Floor,
New York, NY 10048
PAINEWEBBER INCORPORATED (a wholly-owned subsidiary of PaineWebber Group Inc.)
1285 Avenue of the Americas,
New York, NY 10019

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 Bank of New York,101 Barclay Street-- 17W, New York, New York 10268, 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.

                                       10
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UNDERWRITERS' AND SPONSORS' PROFITS

Underwriters receive sales charges when they sell units. Any cash made available
by you to the Sponsors before the settlement date for your units may be used in
the Sponsors' businesses to the extent permitted by federal law and may benefit
the Sponsors.

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
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 Fund, but we cannot predict whether any impact will be material
to the Fund as a whole.

TAXES

The following summarizes the material income tax consequences of holding Units.
It assumes that you are not a dealer, financial institution, insurance company
or other investor with special circumstances or subject to special rules. You
should consult your own tax adviser about your particular circumstances.

GENERAL TREATMENT OF THE FUND AND YOUR INVESTMENT

The Fund intends to quality for special tax treatment as a regulated investment
company so that it will not be subject to federal income tax on the portion of
its taxable income that it distributes to investors in a timely manner.

DISTRIBUTIONS

Distributions to you of the Fund's dividend income and of the Fund's gains from
Securities it has held for one year or less will generally be taxed to you as
ordinary income, to the extent of the Fund's taxable income not attributable to
the Fund's net capital gain. Distributions to you in excess of the Fund's
taxable income will be treated as a return of capital and will reduce your basis
in your Units. To the extent such distributions exceed your basis, they will be
treated as gain from the sale of your Units.

Distributions to you that are treated as ordinary income will constitute
dividends for federal income tax purposes. Corporate investors may be eligible
for the 70% dividends-received deduction with respect to

                                       11
<PAGE>
these distributions. You should consult your tax adviser.

Distributions to you of the Fund's net capital gain will generally be taxable to
you as long-term capital gain, regardless of how long you have held your Units.

GAIN OR LOSS UPON DISPOSITION

You will generally recognize capital gain or loss when you dispose of your
Units. If you receive Securities upon redemption of your Units, you will
generally recognize capital gain or loss equal to the difference between your
basis in your Units and the fair market value of the Securities received in
redemption.

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 or loss that you recognize on a disposition of your Units will be
long-term if you have held your Units for more than one year and short-term
otherwise. Because the deductibility of capital losses is subject to
limitations, you may not be able to deduct all of your capital losses. You
should consult your tax adviser in this regard.

YOUR BASIS IN THE SECURITIES

Your aggregate basis in the Units will generally be equal to the cost of your
Units, including the initial sales charge. You should not increase your basis in
your Units by deferred sales charges or organizational expenses.

FOREIGN INVESTORS

If you are a foreign investor and you are not engaged in a U.S. trade or
business, you will generally be subject to 30% withholding tax (or a lower
applicable treaty rate) on distributions. You should consult your tax adviser
about the possible application of federal, state and local, and foreign taxes.

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
and general information about the structure and operation of the Fund. The
supplemental information is also available from the SEC.

                                       12
<PAGE>
 EQUITY INVESTOR FUND,
 PREMIER WORLD PORTFOLIO
 DEFINED ASSET FUNDS


 REPORT OF INDEPENDENT ACCOUNTANTS

 The Sponsors, Trustee and Holders
   of Equity Investor Fund,
   Premier World Portfolio
   Defined Asset Funds:

 We have audited the accompanying statement of condition of Equity
 Investor Fund, Premier World Portfolio Defined Asset Funds, including
 the portfolio, as of July 31, 1999 and the related statements of
 operations and of changes in net assets for the year ended
 July 31, 1999 and the period August 8, 1997 to July 31, 1998. 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 July 31, 1999, as shown in such portfolio, were
 confirmed to us by The Bank of New York, 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 Equity
 Investor Fund, Premier World Portfolio, Defined Asset Funds at
 July 31, 1999 and the results of its operations and changes in
 its net assets for the above-stated periods in conformity with generally
 accepted accounting principles.


 DELOITTE & TOUCHE LLP
 New York, NY

 October 19, 1999




                                                   D - 1


<PAGE>

 EQUITY INVESTOR FUND,
 PREMIER WORLD PORTFOLIO
 DEFINED ASSET FUNDS

 STATEMENT OF CONDITION
 AS OF JULY 31, 1999

<TABLE>
<S>                                               <C>          <C>
 TRUST PROPERTY:
   Investment in marketable securities - at value
     (cost $40,247,408) (Note 1)...................                $59,122,557
   Dividends receivable............................                    415,494
   Receivable for securities sold..................                    630,194
   Deferred organization cost (Note 5).............                     65,467
                                                                  _____________

             Total trust property..................                 60,233,712


 Less Liabilities:
   Accrued expenses payable........................  $    43,308
   Redemption Payable..............................      566,026
   Advanced from Trustee...........................      194,995
   Other liabilities (Note 5)......................        8,982       813,311
                                                    ____________  _____________
 NET ASSETS, REPRESENTED BY:
   41,840,148 units of fractional undivided
     interest outstanding (Note 3).................   59,046,218
   Undistributed net investment income.............      374,183
                                                    ____________
                                                                   $59,420,401
                                                                 ==============

 UNIT VALUE ($59,420,401/41,840,148 units).........                   $1.42018
                                                                 ==============


</TABLE>

                           See Notes to Financial Statements.



                                                   D - 2

<PAGE>

 EQUITY INVESTOR FUND,
 PREMIER WORLD PORTFOLIO
 DEFINED ASSET FUNDS

 STATEMENTS OF OPERATIONS

<TABLE>
<CAPTION>

                                                                         August 8,
                                                          Year             1997
                                                          Ended             to
                                                         July 31,         July 31,
                                                          1999             1998
<S>                                               <C>             <C>
 INVESTMENT INCOME:
   Dividend income.................................    $1,209,022     $ 1,125,075
   Trustee's fees and expenses.....................       (48,905)       (173,618)
   Sponsors' fees .................................       (27,574)        (20,495)
                                                    ______________   ______________

   Net investment income...........................     1,132,543         930,962
                                                    ______________   ______________

 REALIZED AND UNREALIZED GAIN ON
   INVESTMENTS:
   Realized gain on securities sold ...............     3,554,168         700,388
   Unrealized appreciation of investments..........     4,299,357      14,575,792
                                                    ______________   ______________

   Net realized and unrealized gain on
     investments...................................     7,853,525      15,276,180
                                                    ______________   ______________

 NET INCREASE IN NET ASSETS RESULTING
   FROM OPERATIONS.................................    $8,986,068     $16,207,142
                                                    ==============   ==============


</TABLE>


                                     See Notes to Financial Statements.



                                                   D - 3

<PAGE>


 EQUITY INVESTOR FUND,
 PREMIER WORLD PORTFOLIO
 DEFINED ASSET FUNDS

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


                                                                       August 8,
                                                                          1997
                                                       Year Ended          to
                                                         July 31,        July 31,
1999 1998
<S>                                               <C>             <C>

OPERATIONS:
   Net investment income...........................  $ 1,132,543     $   930,962
   Realized gain on securities sold or redeemed....    3,554,168         700,388
   Unrealized appreciation of investments..........    4,299,357      14,575,792
                                                    _____________    _____________

   Net increase in net assets resulting
      from operations..............................    8,986,068      16,207,142
                                                    _____________    _____________

 DISTRIBUTION TO HOLDERS (Note 2):
 Income...........................................      (797,680)       (867,207)
 Principal........................................      (106,630)           -
                                                    _____________    _____________
 Total distributions..............................      (904,310)       (867,207)
                                                    _____________    _____________

 CAPITAL SHARE TRANSACTIONS:
   Issuance of 56,436,764 additional units
     (Note 1).....................................        -          54,263,317
   Redemptions of 13,200,213 and 2,460,909 units,
     respectively.................................   (15,847,497)    (2,793,592)
   Deferred sales charge (Note 7).................      (317,141)      (264,206)
   Organization costs.............................       (32,733)       (32,733)
                                                    _____________   _____________

 NET CAPITAL SHARE TRANSACTIONS....................  (16,197,371)    51,172,786
                                                    _____________   _____________

 NET (DECREASE) INCREASE IN NET ASSETS.............   (8,115,613)    66,512,721

 NET ASSETS AT BEGINNING OF PERIOD.................   67,536,014      1,023,293
                                                    _____________   _____________

 NET ASSETS AT END OF PERIOD.......................  $59,420,401    $67,536,014
                                                    =============   =============
 PER UNIT:
   Income distributions during period..............      $.01766        $.01627
                                                    =============   =============
   Principal distributions during period...........      $.00219          -
                                                    =============   =============
   Net asset value at end of period................     $1.42018       $1.22703
                                                    =============   =============
 TRUST UNITS OUTSTANDING AT END OF PERIOD..........   41,840,148     55,040,361
                                                    =============   =============

</TABLE>

                                 See Notes to Financial Statements.

                                                   D - 4


<PAGE>

 EQUITY INVESTOR FUND,
 PREMIER WORLD PORTFOLIO
 DEFINED ASSET FUNDS


 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: for securities listed on a national
         securities exchange, value is based on the closing sale price on such
         exchange and, for securities not so listed, value is based on current
         bid price on the over-the-counter market. Realized gains or losses on
         sales of securities are determined using the first-in, first-out cost
         method.

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

     (c) Dividend income is recorded on the ex-dividend dates.

  2. DISTRIBUTIONS

     A distribution of net investment income is made to Holders on the
     twenty-fifth day of each month. Receipts other than dividends, after
     deductions for redemptions and applicable expenses, are also distributed
     periodically.

  3. NET CAPITAL
<TABLE>
<S>                                                                                   <C>
     Cost of 41,840,148 units at Date of Deposit........................................  $40,381,151
     Less sales charge including deferred sales charge..................................      610,282
                                                                                          ____________
                                                                                           39,770,869
     Redemptions of units - net cost of 15,661,122 units redeemed less redemption
       amounts..........................................................................   (3,682,260)
     Principal distribution.............................................................     (106,630)
     Realized gain on securities sold or redeemed.......................................    4,254,556
     Net unrealized appreciation of investments.........................................   18,875,149
     Organization expense...............................................................      (65,466)
                                                                                       _______________

     Net capital applicable to Holders..................................................  $59,046,218
                                                                                       ===============

</TABLE>

                                                   D - 5

<PAGE>

EQUITY INVESTOR FUND,
PREMIER WORLD PORTFOLIO
DEFINED ASSET FUNDS


NOTES TO FINANCIAL STATEMENTS

4. INCOME TAX

As of July 31, 1999, net unrealized appreciation of investments, based
on cost for Federal income tax purposes, aggregated $18,875,149, of which
$1,673,323 related to depreciated securities and $20,548,472 related to
appreciated securities. The aggregate cost of investment securities for
Federal income tax purposes was $40,247,408 at July 31, 1999.

5. ORGANIZATION COSTS

Deferred organization costs are being amortized over the life of the Fund.
Included in "Other liabilities" in the accompanying Statement of Condition
is $8,982 payable to the Trustee for reimbursement of costs related to the
organization of the Trust.

6. REINVESTMENT PLAN

Holders may participate in the Fund's Reinvestment Plan, subject to its
terms, by filing an appropriate notice of election.

7. DEFERRED SALES CHARGE

The deferred portion of the sales charge is $1.625 per 1,000 units payable by
the Fund on behalf of the investors out of net asset value of the Fund
quarterly  on the 10th of each February, May, August and November, until the
Fund terminates.


                                                   D - 6


<PAGE>

EQUITY INVESTOR FUND
PREMIER WORLD PORTFOLIO
DEFINED ASSET FUNDS

PORTFOLIO
AS OF JULY 31, 1999
<TABLE>
<CAPTION>

  Portfolio No. and Title of                 Number of
         Securities                           Shares              Cost               Market Value(1)
<S>                                  <C>              <C>                    <C>
United Kingdom
1  Barclays PLC                               36,800        $   881,088                 $ 1,088,611
2  Bass PLC                                   60,710            932,526                     882,194
3  British Aerospace PLC                      74,900            469,333                     494,669
4  Diageo PLC                                 72,728            822,118                     740,549
5  Imperial Chemicals Industries PLC          44,600            742,151                     519,634
6  Inchcape PLC (10)                          27,450            756,755                     170,377
7  Legal & General Group PLC (4)             243,100            469,287                     585,800
8  Lloyds TSB Group PLC                       33,300            410,984                     433,368
9  P & O Steam Navigation                     74,700            814,150                   1,210,945
10  Tesco PLC                                166,000            392,468                     437,050
11  Wolseley PLC                              59,500            462,897                     531,029
Japan
12  Aisin Seiki Co., Ltd.                     39,000            539,713                     501,186
13  The Bank of Tokyo - Mitsubishi, Ltd.      39,000            730,288                     595,030
14  Bridgestone Corporation                   39,000            929,464                   1,200,262
15  Honda Motor Co., Ltd.                     39,000          1,285,493                   1,689,887
16  Mitsubishi Corporation                    39,000            401,160                     317,916
17  Mitsui & Company                          39,000            341,616                     277,454
18  Takeda Chemical Industries                38,000          1,128,837                   2,060,680
19  Toyota Motor Corporation                  39,000          1,098,897                   1,373,670
Netherlands
20  ABN Amro Holding N.V.                     55,000          1,258,648                   1,235,734
21  Aegon NV                                  13,400            545,636                   1,032,956
22  Buhrmann (5)                              22,200            673,541                     451,284
23  Royal Dutch Petroleum Company             29,700          1,626,230                   1,855,720
24  Unilever NV (6)                           13,661            835,951                     967,552


</TABLE>
                                                                 D - 7


<PAGE>


EQUITY INVESTOR FUND
PREMIER WORLD PORTFOLIO
DEFINED ASSET FUNDS

PORTFOLIO
AS OF JULY 31, 1999
<TABLE>
<CAPTION>

  Portfolio No. and Title of                 Number of
         Securities                           Shares              Cost               Market Value(1)
<S>                                  <C>              <C>                    <C>
France
25  Compagnie de Saint Gobain                   7,800       $ 1,184,408                 $ 1,414,515
26  Credit Commercial de France                11,300           658,579                   1,323,841
27  Pinault-Printemps-Redoute SA               20,800         2,011,204                   3,471,611
28  Societe Generale                           15,600         2,257,875                   2,930,841
Germany
29  Deutsche Telekom (9)                       66,500         1,496,987                   2,735,656
30  Dresdner Bank AG                            7,300           330,343                     313,192
31  Mannesmann AG                              39,950         1,835,073                   6,073,710
32  VEBA AG                                     6,900           407,277                     423,744
Australia
33  Broken Hill Proprietary Company limited    45,400           572,794                     501,734
34  Coles Myer Ltd.                            78,000           386,482                     454,144
35  Rio Tinto Limited                          78,000         1,205,518                   1,394,065
Switzerland
36  Nestle SA                                     800         1,073,393                   1,572,539
37  Novartis AG                                   800         1,233,223                   1,155,269
38  Zurich Versicherungs - Gesellschaft         2,025           844,758                   1,174,326
Spain
39  Banco Santander SA (2)                     76,800           554,335                     761,700
40  Telefonica S.A. (3)(8)                    105,913           921,410                   1,697,474
Canada
41  Nortel Networks Corp. Telecom - ADR (7)    30,650         1,585,279                   2,716,356
Finland
42  Nokia AB - ADR (2)                         75,950         1,657,899                   6,460,497

</TABLE>


                                                                 D - 8

<PAGE>

EQUITY INVESTOR FUND
PREMIER WORLD PORTFOLIO
DEFINED ASSET FUNDS

PORTFOLIO
AS OF JULY 31, 1999
<TABLE>
<CAPTION>

  Portfolio No. and Title of                 Number of
         Securities                           Shares              Cost               Market Value(1)
<S>                                  <C>              <C>                    <C>
Sweden
43  Telefonaktiebolage LM Ericcson ADR        42,300        $   967,369                 $ 1,356,244
Hong Kong
44  HSBC Holdings PLC (3)                     45,600            513,971                     537,542

                                                          ________________         ________________
                                                            $40,247,408                $59,122,557
                                                          ================         ================
</TABLE>


(1)  See Notes to Financial Statements.
(2)  Adjusted for a 2 for 1 Stock split.
(3)  Adjusted for a 3 for 1 Stock split.
(4)  Adjusted for a 4 for 1 Stock split.
(5)  Adjusted for a 4 for 5 reverse split.
(6)  Adjusted for a 25 for 28 reverse split.
(7)  Name changed from Northern Telecom Limited
(8)  Received two 50 for 1 bonus issues
(9)  Received a 1 for 1 rights issue
(10)  Adjusted for a 1 for 6 Consolidation.

<PAGE>




                             Defined
                             Asset FundsSM


HAVE QUESTIONS ?                         EQUITY INVESTOR FUND
Request the most                         PREMIER WORLD PORTFOLIO--1
recent free Information                  (A Unit Investment Trust)
Supplement that gives more               ---------------------------------------
details about the Fund,                  This Prospectus does not contain
by calling:                              complete information about the
The Bank of New York                     investment company filed with the
1-800-221-7771                           Securities and Exchange Commission in
                                         Washington, D.C. under the:
                                         o Securities Act of 1933 (file no.
                                         333-19655) and
                                         o Investment Company Act of 1940 (file
                                         no. 811-3044).
                                         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.


                                                     11311--11/99
<PAGE>
                       CONTENTS OF REGISTRATION STATEMENT
This Post-Effective Amendment to the Registration Statement on Form S-6
comprises the following papers and documents:

     The facing sheet of Form S-6.

     The Cross-Reference Sheet (incorporated by reference to the Cross-Reference
Sheet to the Registration Statement of Defined Asset Funds Municipal Insured
Series, 1933 Act File No. 33-54565).

     The Prospectus.

     The Signatures.

The following exhibits:


1.1.1          --Form of Standard Terms and Conditions of Trust Effective
                 October 21, 1993 (incorporated by reference to Exhibit 1.1.1 to
                 the Registration Statement of Municipal Investment Trust Fund,
                 Multistate Series--48, 1933 Act File No. 33-50247).
5.1            --Consent of independent accountants.
9.1            --Information Supplement (incorporated by reference to Exhibit
                 9.1 to the Registration Statement of Equity Investor Fund,
                 Select Ten Portfolio 1999 International Series A (United
                 Kingdom Portfolio), 1933 Act File No. 333-70593).


                                      R-1
<PAGE>
                              EQUITY INVESTOR FUND
                           PREMIER WORLD PORTFOLIO--1
                              DEFINED ASSET FUNDS

                                   SIGNATURES

     PURSUANT TO THE REQUIREMENTS OF THE SECURITIES ACT OF 1933, THE REGISTRANT,
EQUITY INVESTOR FUND, PREMIER WORLD PORTFOLIO--1, DEFINED ASSET FUNDS, 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 OR AMENDMENT TO THE REGISTRATION STATEMENT TO
BE SIGNED ON ITS BEHALF BY THE UNDERSIGNED THEREUNTO DULY AUTHORIZED IN THE CITY
OF NEW YORK AND STATE OF NEW YORK ON THE 10TH DAY OF NOVEMBER, 1999.

             SIGNATURES APPEAR ON PAGE R-3, R-4, R-5, R-6 AND R-7.

     A majority of the members of the Board of Directors of Merrill Lynch,
Pierce, Fenner & Smith Incorporated has signed this Registration Statement or
Amendment to the Registration Statement pursuant to Powers of Attorney
authorizing the person signing this Registration Statement or Amendment to the
Registration Statement to do so on behalf of such members.

     A majority of the members of the Board of Directors of Salomon Smith Barney
Inc. has signed this Registration Statement or Amendment to the Registration
Statement pursuant to Powers of Attorney authorizing the person signing this
Registration Statement or Amendment to the Registration Statement to do so on
behalf of such members.

     A majority of the members of the Board of Directors of Prudential
Securities Incorporated has signed this Registration Statement or Amendment to
the Registration Statement pursuant to Powers of Attorney authorizing the person
signing this Registration Statement or Amendment to the Registration Statement
to do so on behalf of such members.

     A majority of the members of the Executive Committee of the Board of
Directors of PaineWebber Incorporated has signed this Registration Statement or
Amendment to the Registration Statement pursuant to Powers of Attorney
authorizing the person signing this Registration Statement or Amendment to the
Registration Statement to do so on behalf of such members.

     A majority of the members of the Board of Directors of Dean Witter Reynolds
Inc. has signed this Registration Statement or Amendment to the Registration
Statement pursuant to Powers of Attorney authorizing the person signing this
Registration Statement or Amendment to the Registration Statement to do so on
behalf of such members.

                                      R-2
<PAGE>
               MERRILL LYNCH, PIERCE, FENNER & SMITH INCORPORATED
                                   DEPOSITOR


By the following persons, who constitute  Powers of Attorney have been filed
  a majority of                             under
  the Board of Directors of Merrill         Form SE and the following 1933 Act
  Lynch, Pierce,                            File
  Fenner & Smith Incorporated:              Number: 333-70593


      HERBERT M. ALLISON, JR.
      GEORGE A. SCHIEREN
      JOHN L. STEFFENS
      J. DAVID MEGLEN
      (As authorized signatory for Merrill Lynch, Pierce,
      Fenner & Smith Incorporated and
      Attorney-in-fact for the persons listed above)

                                      R-3
<PAGE>
                           SALOMON SMITH BARNEY INC.
                                   DEPOSITOR


By the following persons, who constitute a majority of      Powers of Attorney
  the Board of Directors of Salomon Smith Barney Inc.:        have been filed
                                                              under the 1933 Act
                                                              File Numbers:
                                                              333-63417 and
                                                              333-63033


      MICHAEL A. CARPENTER
      DERYCK C. MAUGHAN

      By GINA LEMON
       (As authorized signatory for
       Salomon Smith Barney Inc. and
       Attorney-in-fact for the persons listed above)

                                      R-4
<PAGE>
                       PRUDENTIAL SECURITIES INCORPORATED
                                   DEPOSITOR


By the following persons, who constitute a majority of      Powers of Attorney
  the Board of Directors of Prudential Securities             have been filed
  Incorporated:                                               under Form SE and
                                                              the following 1933
                                                              Act File Numbers:
                                                              33-41631 and
                                                              333-15919


      ROBERT C. GOLDEN
      ALAN D. HOGAN
      A. LAURENCE NORTON, JR.
      LELAND B. PATON
      VINCENT T. PICA II
      MARTIN PFINSGRAFF
      HARDWICK SIMMONS
      LEE B. SPENCER, JR.
      BRIAN M. STORMS

      By RICHARD R. HOFFMANN
       (As authorized signatory for Prudential Securities
       Incorporated and Attorney-in-fact for the persons
       listed above)

                                      R-5
<PAGE>
                            PAINEWEBBER INCORPORATED
                                   DEPOSITOR


By the following persons, who constitute  Powers of Attorney have been filed
  the Board of Directors of PaineWebber     under
  Incorporated:                             the following 1933 Act File
                                            Number: 33-55073


      MARGO N. ALEXANDER
      TERRY L. ATKINSON
      BRIAN M. BAREFOOT
      STEVEN P. BAUM
      MICHAEL CULP
      REGINA A. DOLAN
      JOSEPH J. GRANO, JR.
      EDWARD M. KERSCHNER
      JAMES P. MacGILVRAY
      DONALD B. MARRON
      ROBERT H. SILVER
      MARK B. SUTTON
      By
       ROBERT E. HOLLEY
       (As authorized signatory for
       PaineWebber Incorporated
       and Attorney-in-fact for the persons listed above)

                                      R-6
<PAGE>
                           DEAN WITTER REYNOLDS INC.
                                   DEPOSITOR


By the following persons, who constitute  Powers of Attorney have been filed
  a majority of                             under Form SE and the following 1933
  the Board of Directors of Dean Witter     Act File Numbers: 33-17085 and
  Reynolds Inc.:                            333-13039


      RICHARD M. DeMARTINI
      ROBERT J. DWYER
      CHRISTINE A. EDWARDS
      JAMES F. HIGGINS
      MITCHELL M. MERIN
      STEPHEN R. MILLER
      RICHARD F. POWERS III
      PHILIP J. PURCELL
      THOMAS C. SCHNEIDER
      WILLIAM B. SMITH
      By
       MICHAEL D. BROWNE
       (As authorized signatory for
       Dean Witter Reynolds Inc.
       and Attorney-in-fact for the persons listed above)

                                      R-7

 <PAGE>
                                                                     Exhibit 5.1
                       CONSENT OF INDEPENDENT ACCOUNTANTS
The Sponsors and Trustee of Equity Investor Fund,
Premier World Portfolio--1, Defined Asset Funds

We consent to the use in this Post-Effective Amendment No. 2 to Registration
Statement No. 333-19655 of our opinion dated October 19, 1999 appearing in the
Prospectus, which is part of such Registration Statement, and to the reference
to us under the heading 'How The Fund Works--Auditors' in such Prospectus.

DELOITTE & TOUCHE LLP
New York, N.Y.
November 10, 1999


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