MERRILL LYNCH OHIO MUNICIPAL BOND FUND OF MLMSMST
N-30D, 1994-09-08
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MERRILL
LYNCH
OHIO
MUNICIPAL
BOND FUND




Annual Report   July 31, 1994



This report is not authorized for use as an offer of sale or a
solicitation of an offer to buy shares of the Fund unless
accompanied or preceded by the Fund's current prospectus. Past
performance results shown in this report should not be considered a
representation of future performance. Investment return and
principal value of shares will fluctuate so that shares, when
redeemed, may be worth more or less than their original cost.




Merrill Lynch Ohio
Municipal Bond Fund
Merrill Lynch Multi-State
Municipal Series Trust
Box 9011
Princeton, New Jersey
08543-9011
<PAGE>



TO OUR SHAREHOLDERS

The expectation of increasing inflationary pressures and higher
interest rates initially heightened investor concerns and increased
financial market volatility during the July quarter. However, as the
quarter progressed, it was the weakness of the US dollar in foreign
exchange markets that dominated the financial news and prolonged
stock and bond market declines. Although the US dollar had
strengthened slightly by July quarter-end, which may have improved
investor confidence in the stock and bond markets, the possibility
of continued tightening by the Federal Reserve Board resurfaced
following Chairman Alan Greenspan's recent congressional testimony.
Nevertheless, as the quarter drew to a close, a lower-than-expected
rate of growth reported for the US economy during the second
calendar quarter allayed investor concerns and led to stock and bond
market rallies.

During the July quarter, the US dollar's weakness relative to other
major currencies reflected the deteriorating US trade deficit and
widening net long-term capital outflows. In 1993, an expanding US
economy and recession in other industrial countries led to a higher
level of imports and weaker export growth, widening the US trade
deficit further. In addition, global investors favored non-US dollar
denominated assets throughout 1993, which has further depressed the
dollar's value. This trend is not improving significantly thus far
in 1994 since foreign inflows into US capital markets continue to
decline, although US investors are investing outside of the United
States to a lesser degree.

Over the longer term, if the economies of the United States' major
trading partners expand (improving the prospects for US export
growth), the outlook for the US dollar is likely to improve. In the
near term, central banks have attempted to reverse the dollar's
decline through currency market intervention. These efforts have met
with limited success thus far, giving rise to the concern that the
Federal Reserve Board will be forced to continue to raise short-term
interest rates to attract investment capital back to the United
States and bolster the dollar's value. However, further interest
rate increases may jeopardize the US economic expansion. Despite
evidence of a moderating trend in the US economy, Federal Reserve
Board Chairman Alan Greenspan indicated in his July Humphrey-Hawkins
testimony that the central bank would prefer to err on the side of
too much monetary tightening rather than too little. In the weeks
ahead, investors will continue to assess economic data and
inflationary trends as they focus on the US dollar in order to gauge
whether further increases in short-term interest rates are imminent.
Continued indications of moderate and sustainable levels of economic
growth would be positive for the US capital markets.
<PAGE>
The Municipal Market
Long-term tax-exempt bond yields ended the July quarter essentially
unchanged. The Bond Buyer Revenue Bond Index rose five basis points
(0.05%) to 6.47%. The Index, however, failed to capture the dramatic
bond rally on July 29, 1994, when municipal bond yields had their
largest one-day decline thus far this year. Responding to reports of
a continued mild inflationary outlook and a potentially weakening
economy, municipal bond yields declined by approximately 10 basis
points. US Treasury bonds displayed a similar pattern over the last
three months, ending with an equally dramatic rally on July 29,
1994. Long-term US Treasury bonds ended the quarter yielding
approximately 7.40%.

The tax-exempt bond market has continued to be very volatile with
yields fluctuating by as much as 15 basis points from week to week.
This continued volatility is largely a reflection of the same lack
of conviction regarding the near-term direction of interest rates
that has prevailed for much of 1994. Throughout this past quarter,
the municipal bond market had been unable to maintain a consensus
regarding either the potential strength of the current economic
recovery or the resultant response by the Federal Reserve Board.
However, a number of economic indicators released in late July began
to suggest that the robust pace of recent economic growth was
slowing. This promoted a more positive market environment,
culminating in the market rally on July 29.

The municipal bond market's technical position has remained
supportive. Approximately $40 billion in long-term securities were
issued during the three months ended July 31, 1994. This represents
a decline of over 50% versus the July quarter from the previous
year. As discussed in earlier reports, this reduction in new-issue
supply has minimized the selling pressure by larger institutional
investors who fear being unable to purchase sizable amounts of
securities in the future. Such a significant decline in issuance
would normally be expected to trigger a decline in yields as
investors chase a commodity in scarce supply. Investor demand,
however, has also diminished somewhat in recent months as net flows
into long-term municipal bond funds have dramatically slowed or, in
some instances, reversed. Consequently, the supply/demand
relationship within the municipal bond market has remained in
balance, promoting the overall stability in yield levels seen in the
past months.

With after-tax equivalents in excess of 10%, long-term tax-exempt
bonds continue to represent considerable value relative to other
investment alternatives. We continue to anticipate that municipal
bond yields will decline further in late 1994 and into 1995. The
economic impact of the significant interest rate increases
experienced since early February have yet to be totally realized.
The resultant drag on the economy should provide the foundation for
further interest rate declines. Under such a scenario, current tax-
exempt bond yields should prove to represent considerable value.
<PAGE>
Fiscal Year in Review
Municipal bond prices declined during the fiscal year ended July 31,
1994, with the yield on the Bond Buyer Revenue Index rising from
5.87% on July 31, 1993, to 6.47% on July 29, 1994. Price declines
for Ohio municipal bonds were somewhat muted by a combination of
strong demand by Ohio retail investors and a 40% reduction in new-
issue supply of long-term Ohio bonds from the previous year.

Over the course of the fiscal year, as the change in bond market
psychology became clearly evident, we became more cautious regarding
the direction of interest rates. With the yield curve flattening
substantially, we were able to sell longer-term bonds (that is,
those with maturities beyond 25 years) and replace them with bonds
with maturities in the 20-year--25-year range, without sacrificing
yield. By shortening the average maturity and raising the average
coupon of our holdings, we were able to enhance the Fund's Class A
and Class B Shares' total returns and maintain an attractive yield
during the fiscal year. Additionally, increasing the cash position
over the 12-month period to approximately 5% permitted the Fund to
accumulate positions of long-term Ohio municipal bonds during
periods of temporary weakness in the market. We believe these
holdings should provide attractive returns well into the future.

Merrill Lynch Ohio Municipal Bond Fund continues to attract new
investors. For the year ended July 31, 1994, total net assets have
increased from $61.8 million to $75.0 million, representing a 21%
increase.

We appreciate your ongoing interest in Merrill Lynch Ohio Municipal
Bond Fund, and we look forward to assisting you with your financial
needs in the months and years ahead.



Sincerely,


(Arthur Zeikel)
Arthur Zeikel
President


(Vincent R. Giordano)
Vincent R. Giordano
Vice President and Portfolio Manager

August 23, 1994
<PAGE>



IMPORTANT TAX INFORMATION


All of the net investment income distributions paid monthly by
Merrill Lynch Ohio Municipal Bond Fund during its taxable year ended
July 31, 1994 qualify as tax-exempt interest dividends for Federal
tax purposes.

Additionally, the Fund distributed short-term capital gains of
$.079727 per share and long-term capital gains of $.012991 per share
to shareholders of record on December 22, 1993.

Please retain this information for your records.



PERFORMANCE DATA

None of the past results shown should be considered a representation
of future performance. Investment return and principal value of
Class A and Class B Shares will fluctuate so that shares, when
redeemed, may be worth more or less than their original cost.


Average Annual Total Return--Class A Shares*

                              % Return Without       % Return With
                                Sales Charge         Sales Charge**

Year Ended 6/30/94                 -0.98%                 -4.94%
Inception (2/28/92)
through 6/30/94                    +7.52                  +5.66

[FN]
 *Maximum sales charge is 4%.
**Assuming maximum sales charge.


Total Return Based on a $10,000 Investment--Class A Shares*

GRAPHIC MATERIAL APPEARS HERE.
SEE APPENDIX GRAPHIC AND IMAGE MATERIAL ITEM 1.
<PAGE>


Average Annual Total Return--Class B Shares*

                                 % Return               % Return
                                Without CDSC            With CDSC**

Year Ended 6/30/94                 -1.48%                 -5.20%
Inception (2/28/92)
through 6/30/94                    +6.99                  +6.20

[FN]
 *Maximum contingent deferred sales charge is 4% and is reduced
  to 0% after 4 years.
**Assuming payment of applicable contingent deferred sales charge.


Total Return Based on a $10,000 Investment--Class B Shares*

GRAPHIC MATERIAL APPEARS HERE.
SEE APPENDIX GRAPHIC AND IMAGE MATERIAL ITEM 2.




PERFORMANCE DATA (concluded)

<TABLE>
Performance Summary--Class A Shares
<CAPTION>
                           Net Asset Value          Capital Gains
Period Covered          Beginning      Ending        Distributed        Dividends Paid*      % Change**
<C>                      <C>          <C>             <C>                   <C>              <C>
2/28/92--12/31/92        $10.00       $10.40              --                $0.525           + 9.46%
1993                      10.40        11.22          $0.013                 0.648           +14.53
1/1/94--7/31/94           11.22        10.50              --                 0.310           - 3.56
                                                      ------                ------
                                                Total $0.013          Total $1.483

                                                      Cumulative total return as of 7/31/94: +20.89%**

<FN>
 *Figures may include short-term capital gains distributions.
**Figures assume reinvestment of all dividends and capital gains
  distributions at net asset value on the payable date, and do not
  include sales charge; results would be lower if sales charge was included.
</TABLE>
<PAGE>

<TABLE>
Performance Summary--Class B Shares
<CAPTION>
                           Net Asset Value          Capital Gains
Period Covered          Beginning      Ending        Distributed        Dividends Paid*      % Change**
<C>                      <C>          <C>             <C>                   <C>              <C>
2/28/92--12/31/92        $10.00       $10.40              --                $0.481           + 8.99%
1993                      10.40        11.22          $0.013                 0.592           +13.95
1/1/94--7/31/94           11.22        10.50              --                 0.279           - 3.84
                                                      ------                ------
                                                Total $0.013          Total $1.352

                                                      Cumulative total return as of 7/31/94: +19.43%**

<FN>
 *Figures may include short-term capital gains distributions.
**Figures assume reinvestment of all dividends and capital gains
  distributions at net asset value on the payable date, and do not
  reflect deduction of any sales charge; results would be lower if
  sales charge was deducted.
</TABLE>


<TABLE>
Recent Performance Results*
<CAPTION>
                                                                                 12 Month     3 Month
                                                7/31/94   4/30/94    7/31/93     % Change     % Change
<S>                                             <C>       <C>        <C>         <C>           <C>
Class A Shares                                  $10.50    $10.37     $11.02      -4.61%(1)     +1.25%
Class B Shares                                   10.50     10.37      11.02      -4.61(1)      +1.25
Class A Shares--Total Return                                                     +1.10(2)      +2.57(3)
Class B Shares--Total Return                                                     +0.59(4)      +2.44(5)
Class A Shares--Standardized 30-day Yield         4.89%
Class B Shares--Standardized 30-day Yield         4.60%

<FN>
  *Investment results shown for the 3-month and 12-month periods are
   before the deduction of any sales charges.
(1)Percent change includes reinvestment of $0.013 per share capital
   gains distributions.
(2)Percent change includes reinvestment of $0.637 per share ordinary
   income dividends and $0.013 per share capital gains distributions.
(3)Percent change includes reinvestment of $0.135 per share ordinary
   income dividends.
(4)Percent change includes reinvestment of $0.582 per share ordinary
   income dividends and $0.013 per share capital gains distributions.
(5)Percent change includes reinvestment of $0.122 per share ordinary
   income dividends.
</TABLE>
<PAGE>



PORTFOLIO ABBREVIATIONS

To simplify the listings of Merrill Lynch Ohio Municipal Bond Fund's
portfolio holdings in the Schedule of Investments, we have
abbreviated the names of many of the securities according to the
list at right.

AMT               Alternative Minimum Tax (subject to)
GO                General Obligation Bonds
IDR               Industrial Development Revenue Bonds
LEVRRS            Leveraged Reverse Rate Securities
M/F               Multi-Family
PCR               Pollution Control Revenue Bonds
RIB               Residual Interest Bonds
UT                Unlimited Tax
VRDN              Variable Rate Demand Notes


<TABLE>
SCHEDULE OF INVESTMENTS                                                                                     (in Thousands)
<CAPTION>
S&P     Moody's  Face                                                                                             Value
Ratings Ratings  Amount                                Issue                                                     (Note 1a)

Ohio--95.1%
<S>     <S>     <C>      <S>                                                                                      <C>           
NR      Baa1    $  900   Ashtabula County, Ohio, IDR, Refunding (Ashland Oil Inc. Project), Series
                         A, 6.90% due 5/01/2010                                                                   $   924

NR      A        1,000   Barberton, Ohio, Hospital Facilities Revenue Bonds (Barberton Citizens
                         Hospital Company Project), 7.25% due 1/01/2012                                             1,084

NR      A        1,000   Bedford, Ohio, City School District, GO, UT, 6.25% due 12/01/2013                          1,003

BBB     NR       1,000   Bellefontaine, Ohio, Hospital Revenue Refunding Bonds (Mary Rutan Health
                         Association), 6% due 12/01/2002                                                              997

NR      Aa         500   Berea, Ohio, Various Purpose, GO, UT, Bank Qualified, 6.125% due 12/01/2012                  512

A1      NR         200   Cincinnati and Hamilton County, Ohio, Port Authority, Economic Development
                         Revenue Bonds (Kenwood Office Association Project), VRDN, 2.75% due 9/01/2025 (a)            200

AAA     Aaa      2,300   Cleveland, Ohio, Waterworks Revenue Bonds (First Mortgage), Series F-92-A,
                         6.50% due 1/01/2002 (b) (e)                                                                2,513

AA-     A1         700   Columbus, Ohio, Water System Revenue Refunding Bonds, 6.375% due 11/01/2010                  713
<PAGE>
NR      Aa         500   Cuyahoga County, Ohio, GO, 6.50% due 10/01/2012                                              520

NR      NR       2,000   Cuyahoga County, Ohio, GO, Light County Building Improvement, 6.70% due
                         10/01/l999 (e)                                                                             2,196

A       A1         500   Cuyahoga County, Ohio, Hospital Revenue Bonds (Meridia Health System), 7.25%
                         due 8/15/2019                                                                                523

A       A1       2,000   Cuyahoga County, Ohio, Hospital Revenue Health Bonds (Cleveland--Fairview
                         General Hospital and Lutheran Medical Center), 6.25% due 8/15/2010                         2,011

                         Cuyahoga County, Ohio, Hospital Revenue Improvement Bonds:
NR      VMIG1    2,500     (Cleveland University Hospital), VRDN, 2.90% due 1/01/2016 (a)                           2,500
AA      Aa         900     (University Hospital Health Project), 6.50% due 1/15/2019                                  914

NR      NR       1,400   Cuyahoga County, Ohio, IDR, AMT, VRDN, 3.15% due 3/01/2019 (a)                             1,400

A-      A        1,220   Erie County, Ohio, Hospital Improvement Revenue Refunding Bonds (Firelands
                         Community Hospital Project), 6.75% due 1/01/2015                                           1,226

NR      NR       1,500   Franklin County, Ohio, Courthouse Revenue Bonds, 6.375% due 12/01/2001(e)                  1,641

AAA     Aaa      3,500   Franklin County, Ohio, GO, Refunding Bonds, 5.375% due 12/01/2020                          3,216

NR      VMIG1      100   Franklin County, Ohio, Health System Revenue Bonds (Franciscan Sisters--
                         Saint Anthony Medical Center), Series B, VRDN, 2.80% due 7/01/2015 (a)                       100

NR      Aa       1,000   Franklin County, Ohio, Hospital Revenue Refunding Bonds (Riverside United
                         Methodist Church), Series A, 5.75% due 5/15/2020                                             940
</TABLE>
<PAGE>

<TABLE>
SCHEDULE OF INVESTMENTS (continued)                                                                         (in Thousands)
<CAPTION>
S&P     Moody's  Face                                                                                             Value
Ratings Ratings  Amount                                Issue                                                     (Note 1a)

Ohio (continued)
<S>     <S>     <C>      <S>                                                                                      <C>           
A       A       $1,000   Garfield Heights, Ohio, Hospital Revenue Refunding and Improvement Bonds
                         (Marymont Hospital Project), Series B, 6.65% due 11/15/2011                              $ 1,027

                         Hamilton County, Ohio, Health System Revenue Bonds:
NR      VMIG1      400     (Franciscan Sisters Poor Health), Series A, VRDN, 2.90% due 3/01/2017 (a)                  400
BBB-    Baa      1,000     Refunding (Providence Hospital--Franciscan), 6.875% due 7/01/2015                          988

                         Hamilton County, Ohio, Hospital Facilities, Revenue Refunding Bonds:
A       A1       1,000     (Bethesda Hospital), Series A, 6.25% due 1/01/2012                                       1,003
NR      Aa2        500     (Episcopal Retirement Homes), 6.80% due 1/01/2008                                          519

NR      Aa         500   Lake County, Ohio, GO, Refunding, 6.60% due 12/01/2010                                       525

NR      Aa         425   Lakewood, Ohio, GO, 6.50% due 12/01/2012                                                     442

                         Lakota, Ohio, Local School District Revenue Bonds, GO, UT (b):
AAA     Aaa      1,000     7% due 12/01/2008                                                                        1,130
AAA     Aaa      1,740     7% due 12/01/2010                                                                        1,960

A-      NR       1,750   Lorain County, Ohio, Hospital Improvement Revenue Refunding Bonds (Lakeland
                         Community Hospital Inc.), 6.50% due 11/15/2012                                             1,752

A       NR       2,000   Lorain County, Ohio, M/F Revenue Refunding Bonds (Elderly Housing Corporation),
                         Harr Plaza & International, Series A, 6.375% due 7/15/2019                                 1,957

A       NR         840   Loveland, Ohio, City School District, GO, UT, 6.65% due 12/01/2015                           874

BBB+    NR       1,500   Lucas County, Ohio, Hospital Revenue Bonds (Flower Hospital), 6.125% due  
                         12/01/2013                                                                                 1,410

BBB+    NR         750   Marion County, Ohio, IDR, Refunding (K mart Corporation Project), 6.70% due
                         2/01/2007                                                                                    763

BBB+    Baa1     2,000   Moraine, Ohio, Solid Waste Disposal Revenue Bonds (General Motors Corporation
                         Project), AMT, 6.75% due 7/01/2014                                                         2,027

AAA     Aaa      1,000   Mount Vernon, Ohio, City School District Revenue Bonds, Bank Qualified, GO,
                         UT, 5.85% due 12/01/2019 (c)                                                                 982

AAA     Aaa      2,000   North Royalton, Ohio, City School District Revenue Bonds, GO, UT, 6.10%
                         due 12/01/2019 (d)                                                                         2,015
<PAGE>
AAA     Aaa        750   Ohio Capital Corporation for Housing, Mortgage Revenue Refunding Bonds, Series
                         J, 6.50% due 1/01/2025 (d)                                                                   753

AAA     Aaa      2,820   Ohio Municipal Electric Generation Agency, Joint Venture, Electric Revenue
                         Bonds, 5.375% due 2/15/2024(b)                                                             2,506

                         Ohio State Air Quality Development Authority, Revenue Bonds:
AAA     Aaa      2,000     (Columbus & Southern Ohio Power Company Project), Series A, 6.375% due
                           12/01/2020 (c)                                                                           2,052
BBB     Baa3     1,000     (Columbus & Southern Ohio Power Company Project), Series B, 6.25% due 12/01/2020           953
NR      Baa1     1,000     Refunding (Ashland Oil Inc., Project), 6.85% due 4/01/2010                               1,029
AA-     A1       1,500     Refunding (Coll--Dayton Power & Light Project), Series B, 6.40% due 8/15/2027            1,503
BBB-    NR       1,000     Refunding (Owens-Corning Fiberglass Project), 6.25% due 6/01/2004                        1,016
BBB-    Baa2     2,000     Refunding, PCR (Ohio--Edison), Series A, 5.95% due 5/15/2029                             1,772

                         Ohio State Building Authority, State Facilities Revenue Bonds (Adult Correctional
                         Building), Series A:
A+      A1       1,000     6.30% due 10/01/2011                                                                     1,015
A+      A1       2,000     6.125% due 10/01/2012                                                                    2,000
</TABLE>



<TABLE>
SCHEDULE OF INVESTMENTS (concluded)                                                                         (in Thousands)
<CAPTION>
S&P     Moody's  Face                                                                                             Value
Ratings Ratings  Amount                                Issue                                                     (Note 1a)

Ohio (concluded)
<S>     <S>     <C>      <S>                                                                                      <C>           
AA-     Aa      $2,500   Ohio State Higher Educational Facilities, Revenue Refunding Bonds (Case Western
                         Reserve University), 6.25% due 10/01/2017                                                $ 2,613

AAA     Aaa        900   Ohio State Higher Educational Facility, Community Mortgage Revenue Bonds
                         (University of Dayton Project), 6.60% due 12/01/2017 (c)                                     946

BBB+    NR         505   Ohio State IDR, Mortgage Revenue Refunding Bonds (K mart Corporation), Series A,
                         6.75% due 10/01/2007                                                                         519

AA-     A1       1,415   Ohio State Turnpike Commission, Turnpike Revenue Bonds, Series A, 5.75% due
                         2/15/2024                                                                                  1,338

                         Student Loan Funding Corporation, Cincinnati, Ohio, Student Loan Revenue Bonds,
                         VRDN (a):
A1      VMIG1      100     Series 1983 A, 2.60% due 12/29/1998                                                        100
NR      VMIG1      300     Series A-1, AMT, 2.90% due 1/01/2007                                                       300
NR      VMIG1    2,700     Series A-3, AMT, 2.90% due 1/01/2007                                                     2,700
<PAGE>
NR      NR         475   Student Loan Funding Corporation, Cincinnati, Ohio, Student Loan Revenue
                         Refunding Bonds, Sub-Series B, Refunding, AMT, 6.75% due 1/01/2007                           485

BBB+    NR         500   Trumbull County, Ohio, IDR, Refunding (K mart Corporation Project), 5.60% due
                         5/15/2006                                                                                    472

AAA     Aaa      1,275   Twin Valley, Ohio, Community Local School District, GO, Bank Qualified, 6.15% due
                         12/01/2016 (c)                                                                             1,280

AAA     Aaa      1,000   Wooster, Ohio, City School District, GO, UT, 6.50% due 12/01/2017 (b)                      1,040


Puerto Rico -- 6.3%

AAA     NR         700   Puerto Rico Commonwealth, Public Improvement, GO, UT, Series A, 6.50% due
                         7/01/l999 (e)                                                                                752

AAA     Aaa      1,500   Puerto Rico Commonwealth, RIB, 8.49% due 7/01/2020 (f)(g)                                  1,414

                         Puerto Rico Electric Power Authority, Power Revenue Bonds:
AAA     Aaa        900     LEVRRS, 8.778% due 7/01/2023 (f)(g)                                                        870
A-      Baa1       500     Refunding, Series S, 7% due 7/01/2007                                                      559

AAA     Aaa      1,000   Puerto Rico Public Buildings Authority, Guaranteed Public Education and Health
                         Facilities Authority Revenue Bonds, Series L, 6.875% due 7/01/0002 (e)                     1,126

Total Investments (Cost--$75,529)--101.4%                                                                          76,020

Liabilities in Excess of Other Assets--(1.4%)                                                                      (1,037)
                                                                                                                  -------
Net Assets--100.0%                                                                                                $74,983
                                                                                                                  =======

<FN>
(a)The interest rate is subject to change periodically based upon
   the prevailing market rate. The interest rates shown are the
   rates in effect at July 31, 1994.
(b)AMBAC Insured.
(c)FGIC Insured.
(d)MBIA Insured.
(e)Prerefunded.
(f)FSA Insured.
(g)The interest rate is subject to change periodically and inversely
   based upon the prevailing market rate. The interest rates shown
   are the rates in effect at July 31, 1994.
NR--Not Rated.
   Ratings of issues shown have not been audited by Deloitte & Touche
   LLP.


See Notes to Financial Statements.
</TABLE>



FINANCIAL INFORMATION

<TABLE>
Statement of Assets and Liabilities as of July 31, 1994
<S>             <S>                                                                            <C>            <C>
Assets:         Investments, at value (identified cost--$75,528,839) (Note 1a)                                $76,020,493
                Cash                                                                                                6,475
                Receivables:
                  Interest                                                                     $  934,913
                  Beneficial interest sold                                                        157,428       1,092,341
                                                                                               ----------
                Deferred organization expenses (Note 1e)                                                           30,481
                Prepaid registration fees and other assets (Note 1e)                                               13,539
                                                                                                              -----------
                Total assets                                                                                   77,163,329
                                                                                                              -----------

Liabilities:    Payables:
                  Securities purchased                                                          1,999,762
                  Dividends to shareholders (Note 1f)                                              56,549
                  Distributor (Note 2)                                                             27,388
                  Investment adviser (Note 2)                                                      21,914
                  Beneficial interest redeemed                                                     20,210       2,125,823
                                                                                               ----------
                Accrued expenses and other liabilities                                                             54,950
                                                                                                              -----------
                Total liabilities                                                                               2,180,773
                                                                                                              -----------

Net Assets:     Net assets                                                                                    $74,982,556
                                                                                                              ===========

Net Assets      Class A Shares of beneficial interest, $.10 par value, unlimited number
Consist of:     of shares authorized                                                                          $    89,269
                Class B Shares of beneficial interest, $.10 par value, unlimited number
                of shares authorized                                                                              624,898
                Paid-in capital in excess of par                                                               74,207,760
                Accumulated distributions in excess of realized capital gains--net                               (431,025)
                Unrealized appreciation on investments--net                                                       491,654
                                                                                                              -----------
                Net assets                                                                                    $74,982,556
                                                                                                              ===========

Net Asset       Class A--Based on net assets of $9,372,533 and 892,692 shares of
Value:          beneficial interest outstanding                                                               $     10.50
                                                                                                              ===========
                Class B--Based on net assets of $65,610,023 and 6,248,977 shares of
                beneficial interest outstanding                                                               $     10.50
                                                                                                              ===========

                See Notes to Financial Statements.
</TABLE>



FINANCIAL INFORMATION (continued)

<TABLE>
Statement of Operations
<CAPTION>
                                                                                                                  For the
                                                                                                               Year Ended
                                                                                                            July 31, 1994
<S>             <S>                                                                                          <C>      
Investment      Interest and amortization of premium and discount earned                                     $  4,085,404
Income
(Note 1d):

Expenses:       Investment advisory fees (Note 2)                                                                 389,433
                Distribution fees--Class B (Note 2)                                                               308,004
                Printing and shareholder reports                                                                   53,758
                Professional fees                                                                                  51,345
                Accounting services (Note 2)                                                                       49,715
                Transfer agent fees--Class B (Note 2)                                                              31,145
                Registration fees (Note 1e)                                                                        16,364
                Custodian fees                                                                                     12,314
                Amortization of organization expenses (Note 1e)                                                    11,836
                Pricing fees                                                                                        7,574
                Transfer agent fees--Class A (Note 2)                                                               4,038
                Trustees' fees and expenses                                                                         2,977
                Other                                                                                               1,817
                                                                                                             ------------
                Total expenses before reimbursement                                                               940,320
                Reimbursement of expenses (Note 2)                                                               (165,672)
                                                                                                             ------------
                Total expenses after reimbursement                                                                774,648
                                                                                                             ------------
                Investment income--net                                                                          3,310,756
                                                                                                             ------------

Realized &      Realized loss on investments--net                                                                (276,074)
Unrealized      Change in unrealized appreciation/depreciation on investments--net                             (2,899,454)
Loss On                                                                                                      ------------
Investments     Net Increase in Net Assets Resulting from Operations                                         $    135,228
- --Net (Notes                                                                                                 ============
1d & 3):


                See Notes to Financial Statements.
</TABLE>
<PAGE>


FINANCIAL INFORMATION (continued)

<TABLE>
Statements of Changes in Net Assets
<CAPTION>
                                                                                             For the Year Ended July 31,
Increase (Decrease) in Net Assets:                                                                1994            1993
<S>             <S>                                                                          <C>             <C>
Operations:     Investment income--net                                                       $  3,310,756    $  2,167,480
                Realized gain (loss) on investments--net                                         (276,074)        521,730
                Change in unrealized appreciation/depreciation on
                investments--net                                                               (2,899,454)      1,973,664
                                                                                             ------------    ------------
                Net increase in net assets resulting from operations                              135,228       4,662,874
                                                                                             ------------    ------------

Dividends &     Investment income--net:
Distributions     Class A                                                                        (470,881)       (317,057)
to Shareholders   Class B                                                                      (2,839,875)     (1,850,423)
(Note 1f):      Realized gain on investments--net:
                  Class A                                                                              --         (13,015)
                  Class B                                                                              --         (89,139)
                In excess of realized gain on investments--net:
                  Class A                                                                         (76,803)             --
                  Class B                                                                        (515,879)             --
                                                                                             ------------    ------------
                Net decrease in net assets resulting from dividends and
                distributions to shareholders                                                  (3,903,438)     (2,269,634)
                                                                                             ------------    ------------

Beneficial      Net increase in net assets derived from beneficial interest
Interest        transactions                                                                   16,963,612      28,940,785
Transactions                                                                                 ------------    ------------
(Note 4):


Net Assets:     Total increase in net assets                                                   13,195,402      31,334,025
                Beginning of year                                                              61,787,154      30,453,129
                                                                                             ------------    ------------
                End of year                                                                  $ 74,982,556    $ 61,787,154
                                                                                             ============    ============


                See Notes to Financial Statements.
</TABLE>
<PAGE>

FINANCIAL INFORMATION (concluded)

<TABLE>
Financial Highlights 
<CAPTION>
                                                                              Class A                        Class B
                                                                                     For the                       For the
                                                                                      Period                        Period
The following per share data and ratios have been derived                             Feb 28,                       Feb 28,
from information provided in the financial statements.              For the Year    1992++ to      For the Year   1992++ to
                                                                    Ended July 31,   July 31,     Ended July 31,   July 31,
Increase (Decrease) in Net Asset Value:                            1994      1993      1992       1994      1993     1992
<S>             <S>                                              <C>       <C>       <C>        <C>       <C>       <C>
Per Share       Net asset value, beginning of period             $ 11.02   $ 10.56   $ 10.00    $ 11.02   $ 10.56   $ 10.00
Operating                                                        -------   -------   -------    -------   -------   -------
Performance:      Investment income--net                             .56       .58       .25        .50       .52       .23
                  Realized and unrealized gain (loss)
                  on investments--net                               (.43)      .49       .56       (.43)      .49       .56
                                                                 -------   -------   -------    -------   -------   -------
                Total from investment operations                     .13      1.07       .81        .07      1.01       .79
                                                                 -------   -------   -------    -------   -------   -------
                Less dividends and distributions:
                  Investment income--net                            (.56)     (.58)     (.25)      (.50)     (.52)     (.23)
                  Realized gain on investments--net                   --      (.03)       --         --      (.03)       --
                In excess of realized gain on invest-
                  ments--net                                        (.09)       --        --       (.09)       --        --
                                                                 -------   -------   -------    -------   -------   -------
                Total dividends and distributions                   (.65)     (.61)     (.25)      (.59)     (.55)     (.23)
                                                                 -------   -------   -------    -------   -------   -------
                Net asset value, end of period                   $ 10.50   $ 11.02   $ 10.56    $ 10.50   $ 11.02   $ 10.56
                                                                 =======   =======   =======    =======   =======   =======

Total           Based on net asset value per share                 1.10%    10.51%     8.21%+++   0.59%     9.96%     7.98%+++
Investment                                                       =======   =======   =======    =======   =======   =======
Return:**


Ratios to       Expenses, excluding distribution fees
Average           and net of reimbursement                            --        --        --       .66%      .52%      .17%*
Net Assets:                                                      =======   =======   =======    =======   =======   =======
                Expenses, net of reimbursement                      .65%      .51%      .16%      1.16%     1.02%      .67%*
                                                                 =======   =======   =======    =======   =======   =======
                Expenses                                            .89%     1.04%     1.36%      1.39%     1.55%     1.86%*
                                                                 =======   =======   =======    =======   =======   =======
                Investment income--net                             5.12%     5.44%     5.75%      4.61%     4.93%     5.26%*
                                                                 =======   =======   =======    =======   =======   =======

Supplemental    Net assets, end of period (in thousands)         $ 9,373   $ 8,446   $ 4,209    $65,610   $53,341  $ 26,244
Data:                                                            =======   =======   =======    =======   =======   =======
                Portfolio turnover                                44.83%    41.51%    13.21%     44.83%    41.51%    13.21%
                                                                 =======   =======   =======    =======   =======   =======

             <FN>
               *Annualized.
              **Total investment returns exclude the effects of sales loads.
              ++Commencement of Operations.
             +++Aggregate total investment return.

                See Notes to Financial Statements.
</TABLE>
<PAGE>

NOTES TO FINANCIAL STATEMENTS

1. Significant Accounting Policies:
Merrill Lynch Ohio Municipal Bond Fund (the "Fund") is part of
Merrill Lynch Multi-State Municipal Series Trust (the "Trust"). The
Fund is registered under the Investment Company Act of 1940 as a non-
diversified, open-end management investment company. The Fund offers
both Class A and Class B Shares. Class A Shares are sold with a
front-end sales charge. Class B Shares may be subject to a
contingent deferred sales charge. Both classes of shares have
identical voting, dividend, liquidation and other rights and the
same terms and conditions, except that Class B Shares bear certain
expenses related to the distribution of such shares and have
exclusive voting rights with respect to matters relating to such
distribution expenditures. The following is a summary of significant
accounting policies followed by the Fund.

(a) Valuation of investments--Municipal bonds and other portfolio
securities in which the Fund invests are traded primarily in the
over-the-counter municipal bond and money markets and are valued at
the last available bid price in the over-the-counter market or on
the basis of yield equivalents as obtained from one or more dealers
that make markets in the securities. Financial futures contracts and
options thereon, which are traded on exchanges, are valued at their
settlement prices as of the close of such exchanges. Short-term
investments with remaining maturities of sixty days or less are
valued at amortized cost, which approximates market value. Options,
which are traded on exchanges, are valued at their last sale price
as of the close of such exchanges or, lacking any sales, at the last
available bid price. Securities and assets for which market
quotations are not readily available are valued at fair value as
determined in good faith by or under the direction of the Board of
Trustees of the Trust, including valuations furnished by a pricing
service retained by the Trust, which may utilize a matrix system for
valuations. The procedures of the pricing service and its valuations
are reviewed by the officers of the Trust under the general
supervision of the Trustees.
<PAGE>
(b) Financial futures contracts--The Fund may purchase or sell
interest rate futures contracts and options on such futures
contracts for the purpose of hedging the market risk on existing or
the intended purchase of securities. Futures contracts are contracts
for delayed delivery of securities at a specific future date and at
a specific price or yield. Upon entering into a contract, the Fund
agrees to receive from or pay to the broker an amount of cash equal
to the daily fluctuation in value of the contract. Such receipts or
payments are known as variation margin and are recorded by the Fund
as unrealized gains or losses. When the contract is closed, the Fund
records a realized gain or loss equal to the difference between the
value of the contract at the time it was opened and the value at the
time it was closed.

(c) Income taxes--It is the Fund's policy to comply with the
requirements of the Internal Revenue Code applicable to regulated
investment companies and to distribute substantially all of its
taxable income to its shareholders. Therefore, no Federal income tax
provision is required.

(d) Security transactions and investment income--Security
transactions are recorded on the dates the transactions are entered
into (the trade dates). Interest income is recognized on the accrual
basis. Discounts and market premiums are amortized into interest
income. Realized gains and losses on security transactions are
determined on the identified cost basis.

(e) Deferred organization expenses and prepaid registration fees--
Deferred organization expenses are charged to expense on a straight-
line basis over a five-year period. Prepaid registration fees are
charged to expense as the related shares are issued.

(f) Dividends and distributions--Dividends from net investment
income are declared daily and paid monthly. Distributions of capital
gains are recorded on the ex-dividend dates. Distributions in excess
of realized capital gains are due primarily to differing tax
treatments for futures transactions and post October losses.

2. Investment Advisory Agreement and Transactions with Affiliates:
The Fund has entered into an Investment Advisory Agreement with Fund
Asset Management, L.P. ("FAM"). Effective January 1, 1994, the
investment advisory business of FAM was reorganized from a
corporation to a limited partnership. Both prior to and after the
reorganization, ultimate control of FAM was vested with Merrill
Lynch & Co., Inc. ("ML & Co."). The general partner of FAM is
Princeton Services, Inc. ("PSI"), an indirect wholly-owned
subsidiary of ML & Co. The limited partners are ML & Co. and Fund
Asset Management, Inc. ("FAMI"), which is also an indirect wholly-
owned subsidiary of ML & Co. The Fund has also entered into
Distribution Agreements and a Distribution Plan with Merrill Lynch
Funds Distributor, Inc. ("MLFD" or "Distributor"), a wholly-owned
subsidiary of Merrill Lynch Investment Management, Inc. ("MLIM"),
which is also an indirect wholly-owned subsidiary of ML & Co.
<PAGE>
FAM is responsible for the management of the Fund's portfolio and
provides the necessary personnel, facilities, equipment and certain
other services necessary to the operations of the Fund. For such
services, the Fund pays at the following annual rates: 0.55% of the
Fund's average daily net assets not exceeding $500 million; 0.525%
of average daily net assets in excess of $500 million but not
exceeding $1 billion; and 0.50% of average daily net assets in
excess of $1 billion. The Investment Advisory Agreement obligates
FAM to reimburse the Fund to the extent the Fund's expenses
(excluding interest, taxes, distribution fees, brokerage fees and
commissions, and extraordinary items) exceed 2.5% of the Fund's
first $30 million of average daily net assets, 2.0% of the next $70
million of average daily net assets, and 1.5% of the average daily
net assets in excess thereof. FAM's obligation to reimburse the Fund
is limited to the amount of the management fee. No fee payment will
be made during any fiscal year which will cause such expenses to
exceed expense limitations at the time of such payment. For the year
ended July 31, 1994, FAM earned fees of $389,433, of which $165,672
was voluntarily waived.

The Fund has adopted a Plan of Distribution (the "Plan") in
accordance with Rule 12b-1 under the Investment Company Act of 1940,
pursuant to which the Fund pays the Distributor ongoing account
maintenance and distribution fees relating to Class B Shares, which
are accrued daily and paid monthly at the annual rates of 0.25% and
0.25%, respectively, of the average daily net assets of the Class B
Shares of the Fund. Pursuant to a sub-agreement with the
Distributor, Merrill Lynch, Pierce, Fenner & Smith Inc. ("MLPF&S"),
an affiliate of ML & Co., also provides account maintenance and
distribution services to the Fund. The ongoing distribution and
account maintenance fees compensate the Distributor and Merrill
Lynch for providing distribution and account maintenance services to
Class B Shareholders. As authorized by the Plan, the Distributor has
entered into an agreement with MLPF&S, which provides for the
compensation of MLPF&S for providing distribution-related services
to the Fund. For the year ended July 31, 1994, MLFD earned
underwriting discounts of $3,919, and MLPF&S earned dealer
concessions of $36,095 on sales of the Fund's Class A Shares.

MLPF&S also received contingent deferred sales charges of $111,978
relating to Class B Share transactions during the year.

Financial Data Services, Inc. ("FDS"), a wholly-owned subsidiary of
ML & Co., is the Fund's transfer agent.

Accounting services are provided to the Fund by FAM at cost.

Certain officers and/or trustees of the Fund are officers and/or
directors of FAM, FAMI, MLIM, PSI, MLFD, FDS, MLPF&S, and/or ML &
Co.
<PAGE>
NOTES TO FINANCIAL STATEMENTS (concluded)

3. Investments:
Purchases and sales of investments, excluding short-term securities,
for the year ended July 31, 1994 were $41,879,323 and $29,760,008,
respectively.

Net realized and unrealized gains (losses) as of July 31, 1994 were
as follows:
                                       Realized        Unrealized
                                    Gains (Losses)       Gains

Long-term investments                $ (754,246)       $  491,654
Financial futures contracts             478,172                --
                                     ----------        ----------
Total                                $ (276,074)       $  491,654
                                     ==========        ==========

As of July 31, 1994, net unrealized appreciation for Federal income
tax purposes aggregated $491,654, of which $1,744,396 related to
appreciated securities and $1,252,742 related to depreciated
securities. The aggregate cost of investments at July 31, 1994 for
Federal income tax purposes was $75,528,839.

4. Beneficial Interest Transactions:
Net increase in net assets derived from beneficial interest
transactions was $16,963,612 and $28,940,785 for the years ended
July 31, 1994 and July 31, 1993, respectively.

Transactions in shares of beneficial interest for Class A and Class
B Shares were as follows:

Class A Shares for the Year                              Dollar
Ended July 31, 1994                     Shares           Amount

Shares sold                              337,482     $  3,657,739
Shares issued to shareholders
in reinvestment of dividends
and distributions                         26,056          285,141
                                      ----------     ------------
Total issued                             363,538        3,942,880
Shares redeemed                         (237,374)      (2,563,654)
                                      ----------     ------------
Net increase                             126,164     $  1,379,226
                                      ==========     ============

<PAGE>
Class A Shares for the Year                              Dollar
Ended July 31, 1993                     Shares           Amount

Shares sold                              391,700      $ 4,184,535
Shares issued to shareholders
in reinvestment of dividends
and distributions                         19,119          202,971
                                      ----------      -----------
Total issued                             410,819        4,387,506
Shares redeemed                          (42,747)        (457,176)
                                      ----------      -----------
Net increase                             368,072      $ 3,930,330
                                      ==========      ===========


Class B Shares for the Year                              Dollar
Ended July 31, 1994                     Shares           Amount

Shares sold                            1,957,432      $21,477,219
Shares issued to shareholders
in reinvestment of dividends
and distributions                        180,104        1,968,660
                                      ----------      -----------
Total issued                           2,137,536       23,445,879
Shares redeemed                         (729,706)      (7,861,493)
                                      ----------      -----------
Net increase                           1,407,830      $15,584,386
                                      ==========      ===========


Class B Shares for the Year                              Dollar
Ended July 31, 1993                     Shares           Amount

Shares sold                            2,554,298      $27,098,873
Shares issued to shareholders
in reinvestment of dividends
and distributions                        103,855        1,101,321
                                      ----------      -----------
Total issued                           2,658,153       28,200,194
Shares redeemed                         (301,529)      (3,189,739)
                                      ----------      -----------
Net increase                           2,356,624      $25,010,455
                                      ==========      ===========

<PAGE>
<AUDIT-REPORT>
INDEPENDENT AUDITORS' REPORT

The Board of Trustees and Shareholders,
Merrill Lynch Ohio Municipal Bond Fund of
Merrill Lynch Multi-State Municipal Series Trust:

We have audited the accompanying statement of assets and
liabilities, including the schedule of investments, of Merrill Lynch
Ohio Municipal Bond Fund of Merrill Lynch Multi-State Municipal
Series Trust as of July 31, 1994, the related statements of
operations for the year then ended and changes in net assets for
each of the years in the two-year period then ended, and the
financial highlights for each of the years in the two-year period
then ended and for the period February 28, 1992 (commencement of
operations) to July 31, 1992. These financial statements and the
financial highlights are the responsibility of the Fund's management.
Our responsibility is to express an opinion on these financial
statements and the financial highlights 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 and the financial highlights are free of material
misstatement. An audit includes examining, on a test basis, evidence
supporting the amounts and disclosures in the financial statements.
Our procedures included confirmation of securities owned at July 31,
1994 by correspondence with the custodian and brokers. An audit also
includes assessing the accounting principles used and significant
estimates made by management, as well as evaluating the overall
financial statement presentation. We believe that our audits provide
a reasonable basis for our opinion.

In our opinion, such financial statements and financial highlights
present fairly, in all material respects, the financial position of
Merrill Lynch Ohio Municipal Bond Fund of Merrill Lynch Multi-State
Municipal Series Trust as of July 31, 1994, the results of its
operations, the changes in its net assets, and the financial
highlights for the respective stated periods in conformity with
generally accepted accounting principles.


Deloitte & Touche LLP
Princeton, New Jersey
August 29, 1994
</AUDIT-REPORT>
<PAGE>

OFFICERS AND TRUSTEES

Arthur Zeikel, President and Trustee
Kenneth S. Axelson, Trustee
Herbert I. London, Trustee
Robert R. Martin, Trustee
Joseph L. May, Trustee
Andre F. Perold, Trustee
Terry K. Glenn, Executive Vice President
Donald C. Burke, Vice President
Vincent R. Giordano, Vice President
Kenneth A. Jacob, Vice President
Gerald M. Richard, Treasurer
Jerry Weiss, Secretary

Custodian
National Westminster Bank NJ
Exchange Place Centre
10 Exchange Place
Jersey City, New Jersey 07302

Transfer Agent
Financial Data Services, Inc.
4800 Deer Lake Drive East
Jacksonville, Florida 32246-6484
(800) 637-3863


APPENDIX: GRAPHIC AND IMAGE MATERIAL.

Item 1:

Total Return Based on a $10,000 Investment--Class A Shares*

A line graph depicting the growth of an investment in the Fund's
Class A Shares compared to growth of an investment in the Lehman
Brothers Municipal Bond Index. Beginning and ending values are:

                                     2/28/92**        7/94

ML Ohio Municipal Bond Fund++        $ 9,600        $11,606

Lehman Brothers 
  Municipal Bond Index++++           $10,000        $11,857

<PAGE>
[FN]
   *Assuming maximum sales charge, transaction costs and other 
    operating expenses including advisory fees.
  **Commencement of Operations.
  ++ML Ohio Municipal Bond Fund invests primarily in long-term
    obligations issued by or on behalf of the State of Ohio, its 
    political subdivisions, agencies and instrumentalities and 
    obligations of other qualifying issuers.
++++This unmanaged Index consists of long-term revenue bonds,
    prerefunded bonds, general obligation bonds and insured bonds.


Item 2:

Total Return Based on a $10,000 Investment--Class B Shares*

A line graph depicting the growth of an investment in the Fund's
Class B Shares compared to growth of an investment in the Lehman
Brothers Municipal Bond Index. Beginning and ending values are:

                                     2/28/92**        7/94

ML Ohio Municipal Bond Fund++        $10,000        $11,743

Lehman Brothers 
  Municipal Bond Index++++           $10,000        $11,857


[FN]
   *Assuming maximum sales charge, transaction costs and other 
    operating expenses including advisory fees.
  **Commencement of Operations.
  ++ML Ohio Municipal Bond Fund invests primarily in long-term
    obligations issued by or on behalf of the State of Ohio, 
    its political subdivisions, agencies and instrumentalities 
    and obligations of other qualifying issuers.
++++This unmanaged Index consists of long-term revenue bonds,
    prerefunded bonds, general obligation bonds and insured bonds.






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