MERRILL LYNCH CALIFORNIA BOND FUND OF ML CALIF MUN SERIES TR
N-30D, 1997-10-16
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MERRILL LYNCH 
CALIFORNIA 
MUNICIPAL
BOND FUND


[FUND LOGO]
STRATEGIC
          Performance

Annual Report
August 31, 1997

Officers and Trustees
Arthur Zeikel, President and Trustee
James H. Bodurtha, Trustee
Herbert I. London, Trustee
Robert R. Martin, Trustee
Joseph L. May, Trustee
Andre F. Perold, Trustee
Terry K. Glenn, Executive Vice President
Vincent R. Giordano, Senior Vice President 
Donald C. Burke, Vice President
Kenneth A. Jacob, Vice President
Walter C. O'Connor, Vice President
Gerald M. Richard, Treasurer
Robert E. Putney, III, Secretary

Custodian
The Bank of New York
90 Washington Street, 12th Floor
New York, NY 10286

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

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. Statements and other information herein 
are as dated and are subject to change.

Merrill Lynch California
Municipal Bond Fund
Merrill Lynch California
Municipal Series Trust
Box 9011
Princeton, NJ
08543-9011                                            #10329 -- 8/97



[RECYCLE LOGO]
Printed on post-consumer recycled paper



Merrill Lynch California Municipal Bond Fund        August 31, 1997

TO OUR SHAREHOLDERS

The Municipal Market Environment
During the six months ended August 31, 1997, a number of very 
favorable factors combined to push both tax-exempt and taxable bond 
yields lower. A slowing domestic economy, a continued benign, if not 
improving, inflationary environment, a declining Federal budget 
deficit with resultant reduced Treasury borrowing needs, and a 
successful Congressional budget accord all resulted in significant 
declines in fixed-income yields. By the end of July, 30-year US 
Treasury bond yields had declined approximately 50 basis points 
(0.50%) to 6.30%, their lowest level in over a year. Similarly, as 
measured by the Bond Buyer Revenue Bond Index, long-term municipal 
revenue bond yields fell over 50 basis points to 5.49%, their lowest 
level since early 1994.

However, during August the fixed-income markets retraced a part of 
their earlier gains. Investors and traders developed new fears that 
domestic economic growth would reaccelerate during the remainder of 
the calendar year and cause the Federal Reserve Board to raise 
interest rates prior to 1998. During August, long-term US Treasury 
bond yields increased by approximately 30 basis points to end the 
period at 6.61%. Long-term, tax-exempt revenue bond yields rose by 
approximately 20 basis points to end the August 31, 1997 period at 
5.60%. Over the last six months, the overall positive combination of 
moderate economic growth and minimal inflation fostered a decline in 
long-term US Treasury bond yields of approximately 20 basis points, 
while long-term municipal bond yields fell approximately 25 basis 
points.

The decline in tax-exempt yields in recent months was even more 
impressive given that the municipal market lost much of the technical 
support it enjoyed for over a year. In previous quarters, new tax-
exempt bond issuance declined, or remained stable. During the six 
months ended August 31, 1997, approximately $100 billion in new long-
term municipal securities was underwritten, an increase of over 12% 
versus the comparable period in 1996. As tax-exempt bond yields 
declined, many municipal bond issuers took this opportunity to both 
issue new debt as well as refinance older, higher-couponed debt with 
new, lower-yielding issues. This refinancing led to a surge in tax-
exempt issuance in recent months. Over the three months ended August 
31, 1997, new long-term, tax-exempt bond issuance totaled 
approximately $55 billion, an increase of over 25% versus the August 
31, 1996 quarter.

The decline in municipal bond yields also resulted in some reduction 
in retail investor demand. In earlier episodes of rapidly declining 
interest rates, individual investor demand initially fell until 
investors became more acclimated to the lower interest rate levels. 
Should interest rates stabilize, we expect investor demand to increase 
once again. Also, this past June and July, municipal bond investors 
received over $50 billion in assets from coupon income payments, bond 
maturities, and the proceeds from early bond redemptions. Despite the 
continued attraction of the US equity market, much of these assets 
should be reallocated to the municipal bond market as investors adjust 
to the new investment environment.

Looking ahead, given the extent of the recent bond market rally, some 
retrenchment or at least a period of consolidation is likely. However, 
the positive backdrop of modest economic growth and low inflation 
suggests that any such adjustment is not likely to be excessive. 
Despite recent increases in new bond issuance, supply for all of 1997 
is not expected to be materially different than earlier estimates of 
approximately $175 billion. It is likely that the recent increase in 
issuance is largely borrowed from financings that originally were 
scheduled for later this year. Additionally, any significant increase 
in tax-exempt bond yields will preclude further bond refinancings, 
reducing future supply. Unless the current positive economic 
fundamentals undergo immediate and meaningful deterioration, we are 
likely to view any increase in municipal bond yields as an opportunity 
to purchase more attractively priced tax-exempt securities.

Fiscal Year in Review 
As 1997 began, Treasury bond yields rose in excess of 7% as an 
improving economy caused inflationary concerns to mount. We identified 
this level as the lower price end of the trading range, and began 
buying long-term municipal bonds.

One interesting note during the fiscal year was that municipal bonds 
outperformed Treasury issues. This was most likely caused by a 
decreased amount of issuance in a year where many municipal bonds were 
redeemed, or called from the marketplace. 

A rally into the six months ended August 31, 1997 brought municipal 
interest rates back down to levels where they historically lose retail 
support. In our experience, professional traders and arbitrageurs 
normally account for most trading activity at these prices. When this 
occurred, we reduced the Fund's exposure to the long-term end of the 
market, protecting net asset valuation. We presently expect to 
maintain this position until the Federal Reserve Board completes its 
tightening phase and a more sustained drop in yields can be forecast. 
During the fiscal year, our strategy benefited the Fund's total 
returns, enabling Class A Shares to closely match the California 
municipal bond fund industry average of 8.90%. (Results shown do not 
reflect sales charges and would be lower if sales charges were 
included. Complete performance information, including average annual 
total returns, can be found on pages 3 -- 6 of this report to 
shareholders.)

Portfolio Strategy
During the past several months, the municipal market was characterized 
by enormous volatility within an abnormally tight trading range. Lack 
of significant primary supply, combined with an equally disinterested 
demand side at low interest rates created a stagnant marketplace where 
a low volume of activity fostered inefficient price movements. During 
the six months ended August 31, 1997, our portfolio strategy was aimed 
at identifying and capturing the relevant municipal bond trading range 
that corresponds to Treasury bond yields ranging from 7% to 6.50%. 
When Treasury yields are at these levels, municipal bonds tend to have 
a corresponding range of 5.50% -- 5.90%. We presently aim to buy 
municipal bonds when yields approach the 5.90% level and sell when 
they reach the latter level. During the August period, this formula 
worked well on several occasions. We remain focused on achieving as 
high a level of income as possible. To this end, we seek to invest in 
higher-yielding California bonds that comply with the Fund's credit 
constraints. We are currently neutral on the prospects for the fixed-
income market, with a bias toward becoming more aggressively postured 
as interest rates move higher in anticipation of another possible 
Federal Funds rate increase this fall. Should this event provide us 
with a buying opportunity, we would expect to reenter the California 
bond market by extending the Fund's duration, since the municipal bond 
market's prospects appear very favorable for 1998. 

In Conclusion
We appreciate your investment in Merrill Lynch California Municipal 
Bond Fund, and we look forward to assisting you with your financial 
needs in the months and years ahead.

Sincerely,

/S/ARTHUR ZEIKEL
Arthur Zeikel
President

/S/VINCENT R. GIORDANO
Vincent R. Giordano
Senior Vice President 

/S/WALTER C. O'CONNOR
Walter C. O'Connor
Vice President and Portfolio Manager

October 3, 1997



PERFORMANCE DATA

About Fund Performance

Investors are able to purchase shares of the Fund through the Merrill 
Lynch Select PricingSM System, which offers four pricing alternatives:

[bullet] Class A Shares incur a maximum initial sales charge (front-
end load) of 4% and bear no ongoing distribution or account 
maintenance fees. Class A Shares are available only to eligible 
investors.

[bullet] Class B Shares are subject to a maximum contingent deferred 
sales charge of 4% if redeemed during the first year, decreasing 1% 
each year thereafter to 0% after the fourth year. In addition, Class B 
Shares are subject to a distribution fee of 0.25% and an account 
maintenance fee of 0.25%. These shares automatically convert to Class 
D Shares after approximately 10 years. (There is no initial sales 
charge for automatic share conversions.)

[bullet] Class C Shares are subject to a distribution fee of 
0.35% and an account maintenance fee of 0.25%. In addition, Class C 
Shares are subject to a 1% contingent deferred sales charge if 
redeemed within one year of purchase.

[bullet] Class D Shares incur a maximum initial sales charge of 4% and 
an account maintenance fee of 0.10% (but no distribution fee.

None of the past results shown should be considered a representation 
of future performance. Figures shown in the "Average Annual Total 
Return" tables as well as the total returns and cumulative total 
returns in the "Performance Summary" tables assume reinvestment of all 
dividends and capital gains distributions at net asset value on the 
payable date. Investment return and principal value of shares will 
fluctuate so that shares, when redeemed, may be worth more or less 
than their original cost. Dividends paid to each class of shares will 
vary because of the different levels of account maintenance, 
distribution and transfer agency fees applicable to each class, which 
are deducted from the income available to be paid to shareholders.



<TABLE>
<CAPTION>

Recent Performance Results

                                                                            12 Month   3 Month
                                              8/31/97   5/31/97   8/31/96   % Change   % Change
<S>                                           <C>       <C>       <C>       <C>        <C>
Class A Shares*                               $11.81    $11.61    $11.49    +2.79%     +1.72%
Class B Shares*                                11.82     11.62     11.49    +2.87      +1.72
Class C Shares*                                11.82     11.62     11.49    +2.87      +1.72
Class D Shares*                                11.82     11.62     11.49    +2.87      +1.72
Class A Shares -- Total Return*                                             +8.55(1)   +3.11(2)
Class B Shares -- Total Return*                                             +8.09(3)   +2.98(4)
Class C Shares -- Total Return*                                             +7.98(5)   +2.95(6)
Class D Shares -- Total Return*                                             +8.53(7)   +3.08(8)
Class A Shares -- Standardized 30-day Yield     4.26%
Class B Shares -- Standardized 30-day Yield     3.93%
Class C Shares -- Standardized 30-day Yield     3.82%
Class D Shares -- Standardized 30-day Yield     4.16%

  * Investment results shown do not reflect sales charges; results shown would be lower 
    if a sales charge was included.
(1) Percent change includes reinvestment of $0.638 per share ordinary income dividends.
(2) Percent change includes reinvestment of $0.158 per share ordinary income dividends.
(3) Percent change includes reinvestment of $0.579 per share ordinary income dividends.
(4) Percent change includes reinvestment of $0.143 per share ordinary income dividends.
(5) Percent change includes reinvestment of $0.567 per share ordinary income dividends.
(6) Percent change includes reinvestment of $0.140 per share ordinary income dividends.
(7) Percent change includes reinvestment of $0.626 per share ordinary income dividends.
(8) Percent change includes reinvestment of $0.155 per share ordinary income dividends.

</TABLE>

[GRAPHIC OMITTED: line chart Total Return Based on a $10,000 Investment]
Total Return Based on a $10,000 Investment

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

                                         10/25/88**         8/97

ML California Municipal Bond       
Fund+ -- Class A Shares*                   $9,600          $18,426

Lehman Brothers Municipal Bond Index++    $10,000          $19,921


                                           8/87             8/97

ML California Municipal Bond       
Fund+ -- Class B Shares*                  $10,000          $19,924

Lehman Brothers Municipal Bond Index++    $10,000          $22,059


                                        10/21/94**          8/97

ML California Municipal Bond       
Fund+ -- Class C Shares*                  $10,000          $12,453

ML California Municipal Bond       
Fund+ -- Class D Shares*                   $9,600          $12,130

Lehman Brothers Municipal Bond Index++    $10,000          $12,932

 * Assuming maximum sales charge, transaction costs and other 
   operating expenses, including advisory fees.
** Commencement of Operations.
 + ML California Municipal Bond Fund invests primarily in long-term
   investment-grade obligations issued by or on behalf of the State of
   California, 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.
   Past performance is not predictive of future performance.


Average Annual Total Return

                         % Return Without     % Return With
                           Sales Charge      Sales Charge**
Class A Shares*
Year Ended 6/30/97            +8.15%              +3.82%
Five Years Ended 6/30/97      +6.71               +5.84
Inception (10/25/88)
through 6/30/97               +7.57               +7.07

 * Maximum sales charge is 4%.
** Assuming maximum sales charge.


                           % Return             % Return
                         Without CDSC          With CDSC**
Class B Shares*
Year Ended 6/30/97            +7.60%              +3.60%
Five Years Ended 6/30/97      +6.18               +6.18
Ten Years Ended 6/30/97       +7.06               +7.06

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


                              % Return           % Return
                            Without CDSC        With CDSC**
Class C Shares*
Year Ended 6/30/97             +7.49%             +6.49%
Inception (10/21/94)
through 6/30/97                +7.79              +7.79

 * Maximum contingent deferred sales charge is 1% and is reduced 
   to 0% after 1 year.
** Assuming payment of applicable contingent deferred sales charge.


                          % Return Without     % Return With
                            Sales Charge      Sales Charge**
Class D Shares*
Year Ended 6/30/97            +8.04%              +3.72%
Inception (10/21/94) 
through 6/30/97               +8.34               +6.71

 * Maximum sales charge is 4%.
** Assuming maximum sales charge.

<TABLE>
<CAPTION>

Performance Summary -- Class A Shares

                          Net Asset Value           Capital Gains
Period Covered        Beginning        Ending        Distributed        Dividends Paid*        % Change**
<S>                    <C>             <C>          <C>                 <C>                    <C>
10/25/88 -- 12/31/88   $11.02          $10.99            --                 $0.148              + 1.08%
1989                    10.99           11.31            --                  0.761              +10.14
1990                    11.31           11.22            --                  0.755              + 6.14
1991                    11.22           11.61          $0.031                0.751              +10.79
1992                    11.61           11.64           0.125                0.807              + 8.58
1993                    11.64           12.13           0.158                0.808              +12.78
1994                    12.13           10.62            --                  0.662              - 7.08
1995                    10.62           11.83            --                  0.636              +17.77
1996                    11.83           11.69            --                  0.637              + 4.39
1/1/97-- 8/31/97        11.69           11.81            --                  0.416              + 4.79
                                                 Total $0.314         Total $6.381
                                                       Cumulative total return as of 8/31/97:  + 91.93%**
 * Figures may include short-term capital gains distributions.
** Figures do not include sales charge; results would be lower if sales charge was included.

</TABLE>


<TABLE>
<CAPTION>

Performance Summary -- Class B Shares

                           Net Asset Value          Capital Gains
Period Covered        Beginning        Ending        Distributed        Dividends Paid*        % Change***
<S>                    <C>             <C>          <C>                 <C>                    <C>
9/30/85 -- 12/31/85    $10.00          $10.60             --                $0.175             + 8.00%
1986                    10.60           11.63           $0.046               0.763             +17.80
1987                    11.63           10.73             --                 0.745             - 1.45
1988                    10.73           10.99             --                 0.707             + 9.28
1989                    10.99           11.32             --                 0.705             + 9.69
1990                    11.32           11.22             --                 0.698             + 5.51
1991                    11.22           11.62            0.031               0.694             +10.33
1992                    11.62           11.64            0.125               0.748             + 7.94
1993                    11.64           12.13            0.158               0.747             +12.22
1994                    12.13           10.63             --                 0.606             - 7.50
1995                    10.63           11.83             --                 0.578             +17.07
1996                    11.83           11.69             --                 0.578             + 3.87
1/1/97-- 8/31/97        11.69           11.82             --                 0.377             + 4.53
                                                  Total $0.360        Total $8.121
                                                      Cumulative total return as of 8/31/97:  +149.18%***

</TABLE>


<TABLE>
<CAPTION>

Performance Summary -- Class C Shares

                           Net Asset Value          Capital Gains
Period Covered           Beginning     Ending        Distributed        Dividends Paid*       % Change***
<S>                    <C>             <C>          <C>                 <C>                   <C>
10/21/94 -- 12/31/94   $10.94          $10.63            --                $0.116              - 1.76%
1995                    10.63           11.83            --                 0.566              +16.95
1996                    11.83           11.69            --                 0.566              + 3.76
1/1/97 -- 8/31/97       11.69           11.82            --                 0.370              + 4.46
                                                                     Total $1.618
                                                       Cumulative total return as of 8/31/97:  +24.53%***

</TABLE>


<TABLE>
<CAPTION>

Performance Summary -- Class D Shares
                            Net Asset Value         Capital Gains
Period Covered           Beginning     Ending        Distributed        Dividends Paid*       % Change**
<S>                    <C>             <C>          <C>                 <C>                   <C>
10/21/94 -- 12/31/94   $10.94          $10.63            --                $0.127              - 1.65%
1995                    10.63           11.83            --                 0.623              +17.53
1996                    11.83           11.69            --                 0.625              + 4.29
1/1/97 -- 8/31/97       11.69           11.82            --                 0.408              + 4.81
                                                                     Total $1.783
                                                       Cumulative total return as of 8/31/97:  +26.35%**

  * Figures may include short-term capital gains distributions.
 ** Figures do not include sales charge; results would be lower if sales charge was included.
*** Figures do not reflect deduction of any sales charge; results would be lower if sales charge was deducted.

</TABLE>

<TABLE>
<CAPTION>

Merrill Lynch California Municipal Bond Fund                                                                     August 31, 1997

SCHEDULE OF INVESTMENTS                                                                                           (in Thousands)

S&P      Moody's      Face                                                                                              Value
Ratings  Ratings     Amount                                          Issue                                             (Note 1a)

California -- 100.6%
<S>       <C>        <C>        <C>                                                                                       <C>
NR*       NR*        $3,750     Alameda, California, Public Financing Authority, Local Agency Special Tax Revenue 
                                Refunding Bonds (Community Facility #1), Series A, 7% due 8/01/2019                       $4,034
AAA       Aaa         3,000     Anaheim, California, Public Financing Authority, Tax Allocation Revenue Bonds, 
                                RITES, 9.12% due 12/28/2018 (c)(j)                                                         3,536
                                Antioch, California, Improvement Bonds (1915 Assessment District No. 27 -- Lone Tree):
NR*       NR*           655     Series D, 6.40% due 9/02/2003                                                                681
NR*       NR*         4,955     Series D, 7.30% due 9/02/2013                                                              5,142
NR*       NR*         3,995     Series E, 7.125% due 9/02/2016                                                             4,139
AAA       Aaa         3,140     Brea, California, Public Financing Authority, Tax Allocation Revenue Bonds 
                                (Redevelopment Project AB), Series A, 6.75% due 8/01/2022 (c)                              3,438
AAA       Aaa         2,025     Brentwood, California, GO, Unified School District, 6.85% due 2/01/1999 (a)(d)             2,149 
                                California HFA, Home Mortgage Revenue Bonds:
AA-       Aa          3,620     AMT, Series A, 7.70% due 8/01/2030                                                         3,802
AA-       Aa            445     AMT, Series B, 8% due 8/01/2029                                                              465
AA-       Aa         10,115     AMT, Series F-1, 7% due 8/01/2026                                                         10,819
AA-       Aa            655     AMT, Series G, 8.15% due 8/01/2019                                                           677
AA-       Aa          2,035     Series A, 8.125% due 8/01/2019                                                             2,113
AA-       Aa          1,720     Series D, 7.25% due 8/01/2017                                                              1,814
                                California HFA, Revenue Bonds, AMT:
AA-       Aa          4,050     RIB, 8.945% due 8/01/2023 (j)                                                              4,430
AAA       Aaa           980     Series A, 7.20% due 2/01/2026 (c)                                                          1,037
                                California Health Facilities Financing Authority Revenue Bonds, Series A:
AAA       Aaa         4,350     (Kaiser Permanente), 7% due 10/01/2018 (c)(k)                                              4,652
BB        Aaa         5,150     Refunding (Good Samaritan Health System), 7.50% due 5/01/2000 (a)                          5,681
AAA       Aaa         4,000     Refunding (Sutter Health), 5.25% due 8/15/2027 (f)                                         3,843
NR*       A           5,780     (Scripps Research Institute), 6.625% due 7/01/2014                                         6,323
NR*       NR*         5,000     California Pollution Control Financing Authority, PCR, Refunding (Laidlaw 
                                Environmental), AMT, Series A, 6.70% due 7/01/2007                                         5,092
                                California Pollution Control Financing Authority, Resource Recovery Revenue 
                                Bonds, VRDN, AMT (b):
A1        VMIG1+      3,000     (Atlantic Richfield Company Project), Series A, 3.55% due 12/01/2024                       3,000
NR*       Aa1         1,500     (Delano Project), 3.55% due 8/01/2019                                                      1,500
NR*       P1          1,400     Refunding (Ultra Power Rocklin Project), Series A, 3.55% due 6/01/2017                     1,400
NR*       P1          1,000     Refunding (Ultra Power Rocklin Project), Series B, 3.55% due 6/01/2017                     1,000
A1+       VMIG1+      2,200     California Pollution Control Financing Authority, Solid Waste Disposal Revenue 
                                Bonds (Shell Oil Co. -- Martinez Project), VRDN, AMT, Series A, 3.45% due 10/01/2024 (b)   2,200
AA        Aa2        10,000     California State Department of Water Resources, Water System Revenue Bonds 
                                (Central Valley Project), Series O, 5% due 12/01/2022                                      9,425
A+        A1          5,000     California State, GO, Refunding, 6.75% due 6/01/2006                                       5,767
                                California State Public Works Board, Lease Revenue Bonds:
A         Aaa        10,675     (Department of Corrections -- Monterey County Soledad II), Series A, 
                                7% due 11/01/2004 (a)                                                                     12,515
A         A           3,555     High Technology Facilities (San Jose Facilities), Series A, 7.75% due 8/01/2006            4,078
A         Aaa         7,000     (Various Community College Projects), Series B, 7% due 3/01/2004 (a)                       8,160
                                California State, Veterans' Bonds, AMT, UT:
A+        A1         16,300     Series AW, 7.70% due 4/01/2009                                                            16,946
AAA       Aaa         7,500     Series BD, BE and BF, 6.375% due 2/01/2027 (d)                                             7,711
AA        Aa          4,750     California Statewide Communities Development Authority Revenue Bonds 
                                (Saint Joseph Health System Group), COP, 6.625% due 7/01/2021                              5,231
NR*       Aa2         5,500     California Statewide Communities Development Authority, Solid Waste Facilities 
                                Revenue Bonds (Chevron U.S.A. Inc. Project), VRDN, AMT, 3.50% due 12/15/2024 (b)           5,500
                                Central Coast, California, Water Authority Revenue Bonds (State Water Project 
                                Regional Facilities) (d):
AAA       Aaa         5,000     6.60% due 10/01/2002 (a)                                                                   5,616
AAA       Aaa         3,000     Refunding, Series A, 5% due 10/01/2022                                                     2,824
AAA       Aaa         6,420     Series A, 5% due 10/01/2016                                                                6,146
BBB       NR*         1,000     Contra Costa County, California, Public Financing Authority, Tax Allocation 
                                Revenue Refunding Bonds, Series A, 7.10% due 8/01/2022                                     1,088
                                Corona, California, COP (Corona Community):
AAA       Aaa         1,915     8% due 3/01/2009 (a)                                                                       2,430
AAA       Aaa         2,065     8% due 3/01/2010 (a)                                                                       2,636
AAA       Aaa         2,230     8% due 3/01/2011 (a)                                                                       2,863
AAA       Aaa         2,410     8% due 3/01/2012 (a)                                                                       3,106
AAA       Aaa         2,605     8% due 3/01/2013 (a)                                                                       3,368
AAA       Aaa         2,810     8% due 3/01/2014 (a)                                                                       3,649
AAA       Aaa         3,035     8% due 3/01/2015 (i)                                                                       3,958
AAA       Aaa         5,000     East Bay, California, Municipal Utility District, Water System Subordinated, 
                                Revenue Refunding Bonds, 5% due 6/01/2026 (e)                                              4,675
AAA       Aaa         5,000     El Cajon, California, Redevelopment Agency, Tax Allocation Bonds (El Cajon 
                                Redevelopment Project), 6.60% due 10/01/2022 (d)                                           5,461
AAA       Aaa         5,000     El Dorado County, California, Public Agency Financing Authority, Revenue 
                                Refunding Bonds, 5.50% due 2/15/2021 (e)                                                   4,980
AAA       Aaa         2,230     Irvine, California, Unified School District, Special Tax Community Facilities Bonds 
                                (District No. 86-1), Series A, 8.10% due 11/15/1998 (a)(c)                                 2,383
                                Long Beach, California, Improvement Bonds (1915 Assessment District 90-2):
NR*       NR*           465     7% due 9/02/2001                                                                             485
NR*       NR*           495     7.05% due 9/02/2002                                                                          516
NR*       NR*           530     7.10% due 9/02/2003                                                                          553
NR*       NR*           570     7.15% due 9/02/2004                                                                          590
NR*       NR*           610     7.20% due 9/02/2005                                                                          632
NR*       NR*           655     7.25% due 9/02/2006                                                                          678
NR*       NR*         4,065     7.50% due 9/02/2011                                                                        4,234
NR*       NR*         5,695     Long Beach, California, M/F Housing Redevelopment Agency Revenue Bonds 
                                (Pacific Court Apartments), Issue B, AMT, 6.95% due 9/01/2023 (l)                          3,702
NR*       NR*         4,545     Long Beach, California, Special Tax Community Facilities Bonds (District No. 3 -- Pine 
                                Avenue), 6.375% due 9/01/2023                                                              4,653
AAA       Aaa         5,150     Los Angeles, California, Community Redevelopment Agency, Tax Allocation Refunding 
                                Bonds (Bunker Hill), Series H, 6.50% due 12/01/2016 (f)                                    5,694
AAA       Aaa        17,050     Los Angeles, California, Convention and Exhibition Center Authority, COP, 
                                9% due 12/01/2005 (a)                                                                     22,276
AAA       Aaa        10,000     Los Angeles, California, Convention and Exhibition Center Authority, Lease 
                                Revenue Refunding Bonds, Series A, 5.125% due 8/15/2021 (c)                                9,478
A+        Aa3        20,000     Los Angeles, California, Department of Water and Power, Electric Plant Revenue 
                                Refunding Bonds, 6.375% due 2/01/2020                                                     21,383
AAA       Aaa         5,000     Los Angeles, California, Department of Water and Power, Waterworks Revenue 
                                Bonds, 6.30% due 7/01/2024 (c)                                                             5,398
                                Los Angeles, California, Harbor Department Revenue Bonds:
AAA       NR*        10,000     7.60% due 10/01/2018 (i)                                                                  12,472
AAA       Aaa         5,000     AMT, RITR, Series 7, 8.795% due 11/01/2026 (c)(j)                                          5,938
                                Los Angeles, California, Wastewater System Revenue Bonds, Series D (c):
AAA       Aaa         8,000     6.70% due 12/01/2000 (a)                                                                   8,773
AAA       Aaa         7,890     6.625% due 12/01/2012                                                                      8,543
                                Los Angeles County, California, Metropolitan Transportation Authority, Sales Tax 
                                Revenue Bonds:
AAA       Aaa        18,000     (Proposition C), Second Series A, 5% due 7/01/2025 (d)                                    16,772
AAA       Aaa        10,000     Refunding (Proposition A), Series A, 5% due 7/01/2021 (e)                                  9,352
AAA       Aaa         6,250     Marysville, California, Hospital Revenue Bonds (Fremont -- Rideout Health Group), 
                                Series A, 6.30% due 1/01/2022 (d)                                                          6,680
                                Metropolitan Water District, Southern California, Waterworks Revenue Bonds:
AA        Aa         11,650     RIB, 7.682% due 8/05/2022 (j)                                                             12,451
AA        Aa          5,500     Series C, 5% due 7/01/2027                                                                 5,144
AAA       Aaa         5,635     Ontario, California, Redevelopment Financing Authority Revenue Bonds 
                                (Cimarron Project No. 1 -- Center City), 6.375% due 8/01/2020 (c)                          6,090
A         NR*         2,500     Palmdale, California, Civic Authority, Revenue Refunding Bonds (Merged 
                                Redevelopment Project), Series A, 6.60% due 9/01/2034                                      2,816
AAA       Aaa        11,620     Pittsburg, California, Redevelopment Agency, Residential Mortgage Revenue 
                                Bonds, 9.60% due 6/01/2016 (i)                                                            16,634
NR*       NR*         8,315     Pleasanton, California, Joint Powers Financing Authority, Revenue Reassessment 
                                Bonds, Sub-Series B, 6.75% due 9/02/2017                                                   8,839
AAA       Aaa         3,450     Rancho, California, Water District Financing Authority Revenue Bonds, RITES, 
                                8.974% due 9/11/2001 (a)(d)(j)                                                             4,088
                                Redwood City, California, Public Financing Authority, Local Agency Revenue Bonds:
AAA       Aaa         1,500     Refunding, Series A, 6.50% due 7/15/2011 (d)                                               1,628
A-        NR*         2,500     Series B, 7.25% due 7/15/2001 (a)                                                          2,816
BBB       NR*         2,430     Riverside County, California, Redevelopment Agency Bonds (Tax Allocation 
                                Redevelopment Project No. 4), Series A, 7.50% due 10/01/2026                               2,645
AAA       Aaa         3,000     Rohnert Park, California, Community Development Agency, Tax Allocation 
                                Refunding Bonds (Rohnert Park Redevelopment Project), 6.50% due 8/01/2020 (d)              3,220
                                Sacramento, California, Municipal Utility District, Electric Revenue Bonds:
AAA       Aaa         7,000     INFLOS, 8.868% due 8/15/2018 (e)(j)                                                        8,076
AAA       Aaa         5,000     Series B, 6.375% due 8/15/2002 (a)(c)                                                      5,554
AA        Aa          2,500     San Bernardino, California, Health Care System Revenue Bonds (Sisters of Charity), 
                                Series A, 7% due 7/01/2001 (a)                                                             2,789
AAA       Aaa         2,245     San Diego, California, Public Facilities Financing Authority, Sewer Revenue Bonds, 
                                5% due 5/15/2020 (e)                                                                       2,106
                                San Francisco, California, City and County Airport Commission, International 
                                Airport Revenue Bonds, Second Series:
AAA       Aaa         3,240     AMT, Issue 6, 6.50% due 5/01/2018 (d)                                                      3,513
AAA       Aaa         8,000     AMT, Issue 6, 6.60% due 5/01/2020 (d)                                                      8,719
AAA       Aaa         2,000     AMT, Issue 10A, 5.70% due 5/01/2026 (c)                                                    2,016
A+        A1          6,000     AMT, Issue 12A, 5.80% due 5/01/2021                                                        6,066
AAA       Aaa         8,500     Refunding, Issue 1, 6.30% due 5/01/2011 (d)                                                9,186
                                San Francisco, California, City and County, Public Utilities Commission, Water 
                                Revenue Refunding Bonds, Series A:
AA-       Aa          8,870     5% due 11/01/2021                                                                          8,394
AA-       Aa          6,990     5% due 11/01/2026                                                                          6,581
NR*       NR*         1,280     San Francisco, California, City and County Redevelopment Agency, Community 
                                Facilities District Special Tax No. 1 Bonds (South Beach), 8.20% due 8/01/2013             1,346
AAA       Aaa         5,000     San Francisco, California, State Building Authority, Lease Revenue Bonds (San 
                                Francisco Civic Center Complex), Series A, 5.25% due 12/01/2021 (d)                        4,833
AAA       Aaa         4,150     Santa Clara, California, Electric Revenue Bonds, Series A, 6.50% due 7/01/2021 (c)         4,502
AAA       Aaa        10,000     Santa Clara County, California, Financing Authority, Lease Revenue Bonds 
                                (VMC Facility Replacement Project), Series A, 6.75% due 11/15/2020 (d)                    11,285
AA        A1          1,000     Santa Clara County, California, Transportation District, Sales Tax Revenue Bonds, 
                                Series A, 6.75% due 6/01/2011                                                              1,090
AAA       Aaa         2,000     Santa Fe Springs, California, Redevelopment Agency, Tax Allocation Bonds 
                                (Consolidated Redevelopment Project), Series A, 6.40% due 9/01/2022 (c)                    2,178
AAA       Aaa        10,000     Santa Rosa, California, Wastewater Revenue Refunding Bonds (Subregional 
                                Wastewater Project), 5% due 9/01/2022 (e)                                                  9,390
                                Southern California Home Financing Authority, S/F Mortgage Revenue Bonds, AMT (h):
AAA       NR*         3,425     (Mortgage-Backed Security), Series A, 7.625% due 10/01/2023                                3,612
AAA       NR*         2,450     (Mortgage-Backed Security), Series A, 7.35% due 9/01/2024 (g)                              2,591
AAA       NR*         1,025     Series B, 7.75% due 3/01/2024 (g)                                                          1,085
BBB+      NR*        19,300     Stanislaus, California, Waste-to-Energy Financing Agency, Solid Waste Facility 
                                Revenue Refunding Bonds (Ogden Martin System Inc. Project), 7.625% due 1/01/2010          20,698
AAA       Aaa         6,500     Stockton, California, Revenue Bonds (Wastewater Treatment Plant Expansion), 
                                COP, Series A, 6.80% due 9/01/2024 (e)                                                     7,268
AAA       Aaa         4,000     Tri-City, California, Hospital District Revenue Bonds (Tri-City Hospital), 
                                7.50% due 2/01/2002 (a)(c)                                                                 4,584
                                University of California Revenue Bonds (Multiple Purpose Projects):
A-        NR*        14,700     Refunding, Series A, 6.875% due 9/01/2002 (a)                                             16,633
AAA       Aaa         8,000     Series D, 6.25% due 9/01/2012 (c)                                                          8,659
AAA       Aaa        11,845     Series D, 6.375% due 9/01/2024 (c)                                                        12,886
AAA       Aaa         2,940     University of California Revenue Bonds, RITR, Series 13, 9.17% due 9/01/2019 (c)(j)        3,429
A         A2          6,000     West Covina, California, COP (Queen of the Valley Hospital), 6.95% due 8/15/2023           6,720
AAA       Aaa         6,000     West Sacramento, California, Redevelopment Agency, Tax Allocation Bonds 
                                (West Sacramento Redevelopment Project), 6.25% due 9/01/2010 (c)                           6,447

Puerto Rico -- 0.9%

A        Baa1         5,000     Puerto Rico Commonwealth, GO, UT, 6.45% due 7/01/2017                                      5,481

Total Investments (Cost -- $580,294) -- 101.5%                                                                           626,373

Variation Margin on Financial Futures Contracts** -- 0.0%                                                                    (45)
Liabilities in Excess of Other Assets -- (1.5%)                                                                           (9,454)
                                                                                                                       ---------
Net Assets -- 100.0%                                                                                                    $616,874
                                                                                                                       =========

(a) Prerefunded.
(b) The interest rate is subject to change periodically based upon 
    prevailing market rates. The interest rate shown is the rate in 
    effect at August 31, 1997.
(c) MBIA Insured.
(d) AMBAC Insured.
(e) FGIC Insured.
(f) FSA Insured.
(g) FNMA Collateralized.
(h) GNMA Collateralized.
(i) Escrowed to Maturity.
(j) The interest rate is subject to change periodically and inversely
    based upon prevailing market rates. The interest rate shown is 
    the rate in effect at August 31, 1997.
(k) All or portion of security held as collateral in connection with open financial futures contracts.
(l) Non-income producing security.
  * Not Rated.
 ** Financial futures contracts purchased as of August 31, 1997 
    were as follows:                              (in Thousands)

                                                         Value 
Number of                              Expiration       (Notes 
Contracts            Issue                Date          1a & 1b)

   100       Municipal Bond Index     December 1997     $11,781

Total Financial Futures Contracts Purchased
(Total Contract Price -- $11,826)                       $11,781
                                                       ========
  + Highest short-term rating by Moody's Investors Service, Inc. 
    Ratings of issues shown have not been audited by Deloitte & Touche LLP.

    See Notes to Financial Statements.


To simplify the listings of Merrill Lynch California 
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 below and at right. 

PORTFOLIO ABBREVIATIONS

AMT      Alternative Minimum Tax (subject to)
COP      Certificates of Participation
GO       General Obligation Bonds
HFA      Housing Finance Agency
INFLOS   Inverse Floating Rate Municipal Bonds
M/F      Multi-Family
PCR      Pollution Control Revenue Bonds
RIB      Residual Interest Bonds
RITES    Residual Interest Tax-Exempt Securities
RITR     Residual Interest Trust Receipts
S/F      Single-Family
UT       Unlimited Tax
VRDN     Variable Rate Demand Notes




</TABLE>
<TABLE>
<CAPTION>

FINANCIAL INFORMATION

Statement of Assets and Liabilities as of August 31, 1997
<S>                  <C>                                                                            <C>             <C>
Assets:              Investments, at value (identified cost -- $580,294,043) (Note 1a)                              $626,372,705
                     Cash                                                                                                 82,178
                     Receivables:
                     Interest                                                                       $10,463,792
                     Securities sold                                                                  9,247,508
                     Beneficial interest sold                                                           422,185       20,133,485
                                                                                                    -----------
                     Prepaid registration fees and other assets (Note 1e)                                                114,190
                                                                                                                    ------------
                     Total assets                                                                                    646,702,558
                                                                                                                    ------------

Liabilities:         Payables:
                     Securities purchased                                                            27,657,449
                     Beneficial interest redeemed                                                       899,044
                     Dividends to shareholders (Note 1f)                                                590,865
                     Investment adviser (Note 2)                                                        296,202
                     Distributor (Note 2)                                                               188,018
                     Variation margin (Note 1b)                                                          45,094       29,676,672
                                                                                                    -----------
                     Accrued expenses and other liabilities                                                              151,514
                                                                                                                    ------------
                     Total liabilities                                                                                29,828,186
                                                                                                                    ------------

Net Assets:          Net assets                                                                                     $616,874,372
                                                                                                                    ============

Net Assets           Class A Shares of beneficial interest, $.10 par value, unlimited number of
Consist of:          shares authorized                                                                                  $377,984
                     Class B Shares of beneficial interest, $.10 par value, unlimited number of 
                     shares authorized                                                                                 3,181,980
                     Class C Shares of beneficial interest, $.10 par value, unlimited number of 
                     shares authorized                                                                                    92,284
                     Class D Shares of beneficial interest, $.10 par value, unlimited number of 
                     shares authorized                                                                                 1,568,230
                     Paid-in capital in excess of par                                                                577,532,952
                     Accumulated realized capital losses on investments -- net (Note 5)                              (11,912,626)
                     Unrealized appreciation on investments -- net                                                    46,033,568
                                                                                                                    ------------
                     Net assets                                                                                     $616,874,372
                                                                                                                    ============

Net Asset Value:     Class A -- Based on net assets of $44,652,364 and 3,779,839 shares of 
                     beneficial interest outstanding                                                                      $11.81
                                                                                                                    ============
                     Class B -- Based on net assets of $376,018,231 and 31,819,804 shares of 
                     beneficial interest outstanding                                                                      $11.82
                                                                                                                    ============
                     Class C -- Based on net assets of $10,903,527 and 922,838 shares of 
                     beneficial interest outstanding                                                                      $11.82
                                                                                                                    ============
                     Class D -- Based on net assets of $185,300,250 and 15,682,302 shares of 
                     beneficial interest outstanding                                                                      $11.82
                                                                                                                    ============
                     See Notes to Financial Statements.

</TABLE>

<TABLE>
<CAPTION>

Statement of Operations
                                                                                             For the Year Ended August 31, 1997
<S>                  <C>                                                                            <C>             <C>
Investment Income    Interest and amortization of premium and discount earned                                       $38,438,745
(Note 1d):

Expenses:            Investment advisory fees (Note 2)                                               $3,422,246
                     Account maintenance and distribution fees -- Class B (Note 2)                    2,104,015
                     Transfer agent fees -- Class B (Note 2)                                            159,145
                     Account maintenance fees -- Class D (Note 2)                                       155,124
                     Registration fees (Note 1e)                                                         90,645
                     Professional fees                                                                   69,545
                     Accounting services (Note 2)                                                        64,769
                     Custodian fees                                                                      62,832
                     Account maintenance and distribution fees -- Class C (Note 2)                       54,528
                     Transfer agent fees -- Class D (Note 2)                                             47,820
                     Trustees' fees and expenses                                                         39,267
                     Printing and shareholder reports                                                    25,413
                     Transfer agent fees -- Class A (Note 2)                                             13,348
                     Transfer agent fees -- Class C (Note 2)                                              3,680
                     Pricing fees                                                                         3,663
                                                                                                    -----------
                     Total expenses                                                                                    6,316,040
                                                                                                                    ------------
                     Investment income -- net                                                                         32,122,705
                                                                                                                    ------------

Realized &           Realized gain on investments -- net                                                               7,326,062
Unrealized Gain on   Change in unrealized appreciation on investments -- net                                          10,038,184
Investments -- Net                                                                                                  ------------
(Notes 1b, 1d & 3):  Net Increase in Net Assets Resulting from Operations                                            $49,486,951
                                                                                                                    ============

                     See Notes to Financial Statements.

</TABLE>

<TABLE>
<CAPTION>

Statements of Changes in Net Assets

                                                                                                    For the Year Ended August 31,
Increase (Decrease) in Net Assets:                                                                       1997           1996
<S>                  <C>                                                                            <C>             <C>
Operations:          Investment income -- net                                                       $32,122,705      $33,842,706
                     Realized gain on investments -- net                                              7,326,062        4,306,220
                     Change in unrealized appreciation on investments -- net                         10,038,184        1,206,892
                                                                                                   ------------     ------------
                     Net increase in net assets resulting from operations                            49,486,951       39,355,818
                                                                                                   ------------     ------------

Dividends to         Investment income -- net:
Shareholders         Class A                                                                         (2,365,153)      (2,457,264)
(Note 1f):           Class B                                                                        (20,956,944)     (27,350,656)
                     Class C                                                                           (442,724)        (287,834)
                     Class D                                                                         (8,357,884)      (3,746,952) 
                                                                                                   ------------     ------------
                     Net decrease in net assets resulting from dividends to shareholders            (32,122,705)     (33,842,706)
                                                                                                   ------------     ------------

Beneficial Interest  Net decrease in net assets derived from beneficial interest transactions       (43,754,648)     (29,652,521)
Transactions                                                                                       ------------     ------------
(Note 4):

Net Assets:          Total decrease in net assets                                                   (26,390,402)     (24,139,409)
                     Beginning of year                                                              643,264,774      667,404,183
                                                                                                   ------------     ------------
                     End of year                                                                   $616,874,372     $643,264,774
                                                                                                   ============     ============
                     See Notes to Financial Statements.

</TABLE>

<TABLE>
<CAPTION>

Financial Highlights

                                                                                          Class A
The following per share data and ratios have been derived
from information provided in the financial statements.                          For the Year Ended August 31,     

Increase (Decrease) in Net Asset Value:                           1997         1996         1995         1994        1993

<S>                 <C>                                        <C>          <C>          <C>          <C>          <C>
Per Share           Net asset value, beginning of year           $11.49       $11.40       $11.32       $12.38       $11.80
Operating                                                      --------     --------     --------     --------     --------
Performance:        Investment income -- net                        .64          .64          .64          .68          .70
                    Realized and unrealized gain (loss) on 
                    Investments -- net                              .32          .09          .08         (.78)         .78
                                                               --------     --------     --------     --------     --------
                    Total from investment operations                .96          .73          .72         (.10)        1.48
                                                               --------     --------     --------     --------     --------
                    Less dividends and distributions:
                    Investment income -- net                       (.64)        (.64)        (.64)        (.68)        (.70)
                    Realized gain on investments -- net              --           --           --         (.19)        (.20)
                    In excess of realized gain on 
                    investments -- net                               --           --           --         (.09)          --
                                                               --------     --------     --------     --------     --------
                    Total dividends and distributions              (.64)        (.64)        (.64)        (.96)        (.90) 
                                                               --------     --------     --------     --------     --------
                    Net asset value, end of year                 $11.81       $11.49       $11.40       $11.32       $12.38
                                                               ========     ========     ========     ========     ========

Total Investment    Based on net asset value per share             8.55%        6.53%        6.75%        (.92%)      13.19%
Return:*                                                       ========     ========     ========     ========     ========

Ratios to Average   Expenses                                        .63%         .65%         .65%         .62%         .63%
Net Assets:                                                    ========     ========     ========     ========     ========
                    Investment income -- net                       5.49%        5.51%        5.83%        5.65%        5.87%
                                                               ========     ========     ========     ========     ========

Supplemental        Net assets, end of year (in thousands)      $44,652      $42,668      $44,228      $60,017      $64,526
Data:                                                          ========     ========     ========     ========     ========
                    Portfolio turnover                            73.60%       53.79%       53.40%       75.66%       61.24%
                                                               ========     ========     ========     ========     ========

</TABLE>

<TABLE>
<CAPTION>

                                                                                          Class B
The following per share data and ratios have been derived
from information provided in the financial statements.                          For the Year Ended August 31,     

Increase (Decrease) in Net Asset Value:                           1997         1996         1995         1994         1993

<S>                 <C>                                        <C>          <C>          <C>          <C>          <C>
Per Share           Net asset value, beginning of year           $11.49       $11.40       $11.32       $12.38       $11.80
Operating                                                      --------     --------     --------     --------     --------
Performance:        Investment income -- net                        .58          .58          .59          .61          .64
                    Realized and unrealized gain (loss) on 
                    Investments -- net                              .33          .09          .08         (.78)         .78
                                                               --------     --------     --------     --------     --------
                    Total from investment operations                .91          .67          .67         (.17)        1.42
                                                               --------     --------     --------     --------     --------
                    Less dividends and distributions:
                    Investment income -- net                       (.58)        (.58)        (.59)        (.61)        (.64)
                    Realized gain on investments -- net              --           --           --         (.19)        (.20)
                    In excess of realized gain on 
                    investments -- net                               --           --           --         (.09)          --
                                                               --------     --------     --------     --------     --------
                    Total dividends and distributions              (.58)        (.58)        (.59)        (.89)        (.84)
                                                               --------     --------     --------     --------     --------
                    Net asset value, end of year                 $11.82       $11.49       $11.40       $11.32       $12.38
                                                               ========     ========     ========     ========     ========

Total Investment    Based on net asset value per share             8.09%        5.99%        6.25%       (1.50%)      12.62%
Return:*                                                       ========     ========     ========     ========     ========

Ratios to Average   Expenses                                       1.14%        1.16%        1.16%        1.13%        1.13%
Net Assets:                                                    ========     ========     ========     ========     ========
                    Investment income -- net                       4.98%        5.01%        5.32%        5.15%        5.38%
                                                               ========     ========     ========     ========     ========

Supplemental        Net assets, end of year (in thousands)     $376,018     $480,668     $616,199     $726,888     $821,220
Data:                                                          ========     ========     ========     ========     ========
                    Portfolio turnover                            73.60%       53.79%       53.40%       75.66%       61.24%
                                                               ========     ========     ========     ========     ========
                  * Total investment returns exclude the effects of sales loads.

                    See Notes to Financial Statements.

</TABLE>



<TABLE>
<CAPTION>

                                                                      Class C                                Class D
                                                                                 For the                                For the
                                                                                 Period                                 Period
                                                                                 Oct. 21,                               Oct. 21,
The following per share data and ratios have been derived   For the Year Ended   1994+ to        For the Year Ended     1994+ to
from information provided in the financial statements.          August 31,       Aug. 31,             August 31,        Aug. 31,

Increase (Decrease) in Net Asset Value:                      1997       1996       1995           1997         1996       1995

<S>                <C>                                      <C>        <C>        <C>            <C>          <C>        <C>
Per Share          Net asset value, beginning of period     $11.49     $11.40     $10.94         $11.49       $11.40     $10.94
Operating                                                  -------    -------    -------       --------     --------    -------
Performance:       Investment income -- net                    .57        .57        .49            .63          .63        .54
                   Realized and unrealized gain on 
                   investments -- net                          .33        .09        .46            .33          .09        .46
                                                           -------    -------    -------       --------     --------    -------
                   Total from investment operations            .90        .66        .95            .96          .72       1.00
                                                           -------    -------    -------       --------     --------    -------
                   Less dividends from investment 
                   income -- net                              (.57)      (.57)      (.49)          (.63)        (.63)      (.54)
                                                           -------    -------    -------       --------     --------    -------
                   Net asset value, end of period           $11.82     $11.49     $11.40         $11.82       $11.49     $11.40
                                                           =======    =======    =======       ========     ========    =======

Total Investment   Based on net asset value per share         7.98%      5.88%      8.91%++++      8.53%        6.43%      9.39%++++
Return:**                                                  =======    =======    =======       ========     ========    =======

Ratios to Average  Expenses                                   1.24%      1.26%      1.27%*          .73%         .75%       .76%*
Net Assets:                                                =======    =======    =======       ========     ========    =======
                   Investment income -- net                   4.87%      4.91%      5.04%*         5.39%        5.42%      5.59%*
                                                           =======    =======    =======       ========     ========    =======

Supplemental       Net assets, end of period 
Data:              (in thousands)                          $10,904     $8,112     $3,131       $185,300     $111,817     $3,846
                                                           =======    =======    =======       ========     ========    =======
                   Portfolio turnover                        73.60%     53.79%     53.40%         73.60%       53.79%     53.40%
                                                           =======    =======    =======       ========     ========    =======
                 * Annualized.
                ** Total investment returns exclude the effects of sales loads.
                 + Commencement of Operations.
              ++++ Aggregate total investment return.
           
                   See Notes to Financial Statements.



Merrill Lynch California Municipal Bond Fund           August 31, 1997

NOTES TO FINANCIAL STATEMENTS

1. Significant Accounting Policies:
Merrill Lynch California Municipal Bond Fund (the "Fund") is part of 
Merrill Lynch California Municipal Series Trust (the "Trust"). The 
Fund is registered under the Investment Company Act of 1940 as a 
diversified, open-end management investment company. The Fund offers 
four classes of shares under the Merrill Lynch Select PricingSM 
System. Shares of Class A and Class D are sold with a front-end sales 
charge. Shares of Class B and Class C may be subject to a contingent 
deferred sales charge. All classes of shares have identical voting, 
dividend, liquidation and other rights and the same terms and 
conditions, except that Class B, Class C and Class D Shares bear 
certain expenses related to the account maintenance of such shares, 
and Class B and Class C Shares also bear certain expenses related to 
the distribution of such shares. Each class has exclusive voting 
rights with respect to matters relating to its account maintenance and 
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. 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.

(b) Derivative financial instruments -- The Fund may engage in various 
portfolio strategies to seek to increase its return by hedging its 
portfolio against adverse movements in the debt markets. Losses 
may arise due to changes in the value of the contract or if the 
counterparty does not perform under the contract.

[bullet] 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 securities 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 
deposits and maintains as collateral such initial margin as required 
by the exchange on which the transaction is effected. Pursuant to the 
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) Prepaid registration fees -- 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.

2. Investment Advisory Agreement and Transactions with Affiliates:
The Fund has entered into an Investment Advisory Agreement with Fund 
Asset Management, L.P. ("FAM"). The general partner of FAM is 
Princeton Services, Inc. ("PSI"), an indirect wholly-owned subsidiary 
of Merrill Lynch & Co., Inc. ("ML & Co."), which is the limited 
partner. The Fund has also entered into a Distribution Agreement and 
Distribution Plans with Merrill Lynch Funds Distributor, Inc. ("MLFD" 
or "Distributor"), a wholly-owned subsidiary of Merrill Lynch Group, 
Inc.

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 a monthly fee based upon the average daily 
value of the Fund's net assets 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.

Pursuant to the distribution plans (the "Distribution Plans") adopted 
by the Fund in accordance with Rule 12b-1 under the Investment Company 
Act of 1940, the Fund pays the Distributor ongoing account maintenance 
and distribution fees. The fees are accrued daily and paid monthly at 
annual rates based upon the average daily net assets of the shares as 
follows:

                Account        Distribution 
            Maintenance Fee        Fee

Class B          0.25%            0.25%
Class C          0.25%            0.35%
Class D          0.10%             --

Pursuant to a sub-agreement with the Distributor, Merrill Lynch, 
Pierce, Fenner & Smith Incorporated ("MLPF&S"), a subsidiary of ML & 
Co., also provides account maintenance and distribution services to 
the Fund. The ongoing account maintenance fee compensates the 
Distributor and MLPF&S for providing account maintenance services to 
Class B, Class C and Class D shareholders. The ongoing distribution 
fee compensates the Distributor and MLPF&S for providing shareholder 
and distribution-related services to Class B and Class C shareholders.

For the year ended August 31, 1997, MLFD earned underwriting discounts 
and MLPF&S earned dealer concessions on sales of the Fund's Class A 
and Class D Shares as follows:

                  MLFD       MLPF&S

Class A          $1,003     $10,677
Class D          $4,949     $45,618

For the year ended August 31, 1997, MLPF&S received contingent 
deferred sales charges of $367,638 and $5,077 relating to transactions 
in Class B and Class C Shares, respectively.

Merrill Lynch Financial Data Services, Inc. ("MLFDS"), 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, PSI, MLFDS, MLFD, and/or ML & Co.

3. Investments:
Purchases and sales of investments, excluding short-term securities, 
for the year ended August 31, 1997 were $446,440,270 and $466,703,274, 
respectively.

Net realized and unrealized gains (losses) as of August 31, 1997 were 
as follows:

                                      Realized     Unrealized
                                       Gains          Gains
                                      (Losses)       (Losses)

Long-term investments                $9,399,671    $46,078,662
Short-term investments                   (3,046)            --
Financial futures contracts          (2,070,563)       (45,094)
                                     ----------    -----------
Total                                $7,326,062    $46,033,568
                                     ==========    ===========

As of August 31, 1997, net unrealized appreciation for Federal income 
tax purposes aggregated $45,973,320, of which $48,037,058 related to 
appreciated securities and $2,063,738 related to depreciated 
securities. The aggregate cost of investments at August 31, 1997 for 
Federal income tax purposes was $580,399,385.

4. Beneficial Interest Transactions:
Net decrease in net assets derived from beneficial interest 
transactions was $43,754,648 and $29,652,521 for the years ended 
August 31, 1997 and August 31, 1996, respectively.

Transactions in shares of beneficial interest for each class were as 
follows:

Class A Shares for the Year                          Dollar
Ended August 31, 1997                Shares          Amount

Shares sold                          784,082       $9,128,183
Shares issued to shareholders 
in reinvestment of dividends          90,013        1,049,006
                                  ----------    -------------
Total issued                         874,095       10,177,189
Shares redeemed                     (807,960)      (9,396,731) 
                                  ----------    -------------
Net increase                          66,135         $780,458
                                 ===========    =============

Class A Shares for the Year                          Dollar
Ended August 31, 1996                Shares          Amount

Shares sold                          343,484       $3,993,921
Shares issued to shareholders 
in reinvestment of dividends          91,475        1,056,965
                                  ----------    -------------
Total issued                         434,959        5,050,886
Shares redeemed                     (602,254)      (6,955,693) 
                                  ----------    -------------
Net decrease                        (167,295)     $(1,904,807) 
                                 ===========    =============

Class B Shares for the Year                          Dollar
Ended August 31, 1997                Shares          Amount

Shares sold                        3,032,901      $35,356,868
Shares issued to shareholders 
in reinvestment of dividends         801,637        9,343,192
                                  ----------    -------------
Total issued                       3,834,538       44,700,060
Automatic conversion 
of shares                         (6,809,790)     (79,213,998)
Shares redeemed                   (7,027,468)     (81,817,493) 
                                  ----------    -------------
Net decrease                     (10,002,720)   $(116,331,431) 
                                 ===========    =============

Class B Shares for the Year                          Dollar
Ended August 31, 1996                Shares          Amount

Shares sold                        3,684,831      $42,602,905
Shares issued to shareholders 
in reinvestment of dividends       1,050,882       12,150,317
                                  ----------    -------------
Total issued                       4,735,713       54,753,222
Automatic conversion 
of shares                         (9,424,309)    (109,009,248)
Shares redeemed                   (7,544,434)     (87,132,865) 
                                  ----------    -------------
Net decrease                     (12,233,030)   $(141,388,891) 
                                 ===========    =============

Class C Shares for the Year                          Dollar
Ended August 31, 1997                 Shares         Amount

Shares sold                          528,637       $6,169,836
Shares issued to shareholders 
in reinvestment of dividends          21,632          252,331
                                  ----------    -------------
Total issued                         550,269        6,422,167
Shares redeemed                     (333,381)      (3,882,185) 
                                  ----------    -------------
Net increase                         216,888       $2,539,982
                                 ===========    =============

Class C Shares for the Year                          Dollar
Ended August 31, 1996                 Shares         Amount

Shares sold                          544,866       $6,303,679
Shares issued to shareholders    
in reinvestment of dividends          12,095          139,565
                                  ----------    -------------
Total issued                         556,961        6,443,244
Shares redeemed                     (125,720)      (1,452,025) 
                                  ----------    -------------
Net increase                         431,241       $4,991,219
                                 ===========    =============

Class D Shares for the Year                           Dollar
Ended August 31, 1997                Shares           Amount

Shares sold                          788,405       $9,195,140
Automatic conversion of shares     6,809,790       79,213,998
Shares issued to shareholders 
in reinvestment of dividends         310,139        3,617,224
                                  ----------    -------------
Total issued                       7,908,334       92,026,362
Shares redeemed                   (1,956,003)     (22,770,019) 
                                  ----------    -------------
Net increase                       5,952,331      $69,256,343
                                 ===========    =============

Class D Shares for the Year                           Dollar
Ended August 31, 1996                Shares           Amount

Shares sold                          623,197       $7,211,474
Automatic conversion 
of shares                          9,424,309      109,009,248
Shares issued to shareholders 
in reinvestment of dividends         142,594        1,645,562
                                  ----------    -------------
Total issued                      10,190,100      117,866,284
Shares redeemed                     (797,598)      (9,216,326) 
                                  ----------    -------------
Net increase                       9,392,502     $108,649,958
                                 ===========    =============

5. Capital Loss Carryforward:
At August 31, 1997, the Fund had a net capital loss carryforward of 
approximately $9,723,000, of which $2,578,000 expires in 2003 and 
$7,145,000 expires in 2004. This amount will be available to offset 
like amounts of any future taxable gains.



INDEPENDENT AUDITORS' REPORT 

The Board of Trustees and Shareholders, 
Merrill Lynch California Municipal Bond Fund of Merrill Lynch 
California Municipal Series Trust:

We have audited the accompanying statement of assets and liabilities, 
including the schedule of investments, of Merrill Lynch California 
Municipal Bond Fund of Merrill Lynch California Municipal Series Trust 
as of August 31, 1997, 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 five-year period then ended. 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 August 31, 1997 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 California Municipal Bond Fund of Merrill Lynch 
California Municipal Series Trust as of August 31, 1997, 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
October 8, 1997


IMPORTANT TAX INFORMATION (unaudited)

All of the net investment income distributions 
paid monthly by Merrill Lynch California Municipal Bond Fund during 
its taxable year ended August 31, 1997 qualify as tax-exempt interest 
dividends for Federal income tax purposes.

Additionally, there were no capital gains distributions made by the 
Fund during the year.

Please retain this information for your records.



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