PAINEWEBBER MASTER SERIES INC
NSAR-B, 1996-10-30
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<PAGE>      PAGE  1
000 B000000 08/31/96
000 C000000 0000780403
000 D000000 N
000 E000000 NF
000 F000000 Y
000 G000000 N
000 H000000 N
000 I000000 3.0.a
000 J000000 A
001 A000000 PAINEWEBBER MASTER SERIES, INC.
001 B000000 811-4448
001 C000000 2127131074
002 A000000 1285 AVENUE OF THE AMERICAS
002 B000000 NEW YORK,
002 C000000 NY
002 D010000 10019
003  000000 N
004  000000 N
005  000000 N
006  000000 N
007 A000000 Y
007 B000000  2
007 C010100  1
007 C010200  2
007 C020200 PW BALANCED FUND (FORMERLY ASSET ALLOCATION)
007 C030200 N
007 C010300  3
007 C010400  4
007 C010500  5
007 C010600  6
007 C010700  7
007 C010800  8
007 C010900  9
007 C011000 10
008 A00AA01 MITCHELL HUTCHINS ASSET MANAGEMENT, INC.
008 B00AA01 A
008 C00AA01 801-13219
008 D01AA01 NEW YORK,
008 D02AA01 NY
008 D03AA01 10019
010 A00AA01 MITCHELL HUTCHINS ASSET MANAGEMENT, INC.
010 B00AA01 801-13219
010 C01AA01 NEW YORK,
010 C02AA01 NY
010 C03AA01 10019
011 A00AA01 PAINEWEBBER, INC.
011 B00AA01 8-16267
011 C01AA01 NEW YORK,
011 C02AA01 NY
011 C03AA01 10019
012 A00AA01 PFPC, INC.
<PAGE>      PAGE  2
012 B00AA01 85-0000000
012 C01AA01 WILMINGTON,
012 C02AA01 DE
012 C03AA01 19809
013 A00AA01 PRICE WATERHOUSE
013 B01AA01 NEW YORK,
013 B02AA01 NY
013 B03AA01 10036
014 A00AA01 PAINEWEBBER, INC.
014 B00AA01 8-16267
015 A00AA01 STATE STREET BANK & TRUST CO.
015 B00AA01 C
015 C01AA01 NORTH QUINCY,
015 C02AA01 MA
015 C03AA01 02171
015 E01AA01 X
018  00AA00 Y
019 A00AA00 Y
019 B00AA00   63
019 C00AA00 PAINEWEBBE
020 A000001 MERRILL LYNCH PIERCE FENNER & SMITH
020 B000001 13-5674085
020 C000001     15
020 A000002 SALOMON BROTHERS, INC.
020 B000002 13-3082694
020 C000002     11
020 A000003 BERNSTEIN (SANFORD C.) & CO., INC.
020 B000003 13-2625874
020 C000003     10
020 A000004 BEAR STEARNS SECURITIES CORP.
020 B000004 13-3299429
020 C000004     10
020 A000005 SMITH BARNEY
020 B000005 13-3371860
020 C000005      8
020 A000006 DILLON READ & CO.
020 B000006 13-1939216
020 C000006      8
020 A000007 BROWN (ALEX) & SONS, INC.
020 B000007 94-2411042
020 C000007      7
020 A000008 MORGAN STANLEY & CO., INC.
020 B000008 13-2655998
020 C000008      7
020 A000009 INTERSTATE/JOHNSON LANE CORP.
020 B000009 56-0276690
020 C000009      7
020 A000010 DONALDSON LUFKIN & JENRETTE
020 B000010 13-2741729
020 C000010      6
021  000000      134
<PAGE>      PAGE  3
022 A000001 DAIWA
022 B000001 13-5680329
022 C000001    802794
022 D000001         0
022 A000002 CITICORP SECURITIES MARKETS
022 B000002 00-0000000
022 C000002    597394
022 D000002       999
022 A000003 SALOMON BROTHERS, INC.
022 B000003 13-3082694
022 C000003    307631
022 D000003     16438
022 A000004 STATE STREET BANK & TRUST CO.
022 B000004 04-1867445
022 C000004     63947
022 D000004         0
022 A000005 GREENWICH SECURITIES
022 B000005 13-2697091
022 C000005     26248
022 D000005     22441
022 A000006 MERRILL LYNCH PIERCE FENNER & SMITH
022 B000006 13-5674085
022 C000006     23862
022 D000006     23952
022 A000007 DISCOUNT CORP. OF NEW YORK
022 B000007 13-5031465
022 C000007     42466
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022 A000008 DONALDSON LUFKIN & JENRETTE
022 B000008 13-2741729
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022 D000008     15293
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022 B000009 13-3299429
022 C000009     11698
022 D000009     11863
022 A000010 PRUDENTIAL SECURITIES, INC.
022 B000010 22-2347336
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<PAGE>      PAGE  6
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<PAGE>      PAGE  7
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<PAGE>      PAGE  9
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<PAGE>      PAGE  10
SIGNATURE   JULIAN SLUYTERS                              
TITLE       VP/TREASURER        
 


<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000780403
<NAME> PAINEWEBBER MASTER SERIES, INC.
<SERIES>
   <NUMBER> 1
   <NAME> PAINEWEBBER BALANCED FUND CLASS A
<MULTIPLIER> 1,000
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          AUG-31-1996
<PERIOD-START>                             MAR-01-1996
<PERIOD-END>                               AUG-31-1996
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<INVESTMENTS-AT-VALUE>                         162,994
<RECEIVABLES>                                    6,096
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<AVG-DEBT-PER-SHARE>                                 0
        

</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000780403
<NAME> PAINEWEBBER MASTER SERIES, INC.
<SERIES>
   <NUMBER> 2
   <NAME> PAINEWEBBER BALANCED FUND CLASS B
<MULTIPLIER> 1,000
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
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<PERIOD-START>                             MAR-01-1996
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<INVESTMENTS-AT-VALUE>                          23,081
<RECEIVABLES>                                      863
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<TOTAL-LIABILITIES>                              1,653
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                        20,159
<SHARES-COMMON-STOCK>                            2,141
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</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000780403
<NAME> PAINEWEBBER MASTER SERIES, INC.
<SERIES>
   <NUMBER> 3
   <NAME> PAINEWEBBER BALANCED FUND - CLASS C
<MULTIPLIER> 1,000
       
<S>                             <C>
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</TABLE>

               
      
      
      
      October 28, 1996
      
      To the Board of Directors of  PaineWebber Balaced Fund
      
      In planning and performing our audit of the financial statements of 
      PaineWebber Balanced Fund (the  Fund ) for the period ended August 
      31, 1996, we considered its internal control structure, including 
      procedures for safeguarding securities, in order to determine our
      auditing procedures for the purposes of expressing our opinion on 
      the financial statements and to comply with the requirements of 
      Form N-SAR, and not to provide assurance on the internal control 
      structure.
      
      The management of the Fund is responsible for establishing and 
      maintaining an internal control structure.  In fulfilling this 
      responsibility, estimates and judgments by management are required to 
      assess the expected benefits and related costs of internal control 
      structure policies and procedures.  Two of the objectives of an 
      internal control structure are to provide management with reasonable, 
      but not absolute, assurance that assets are appropriately safeguarded 
      against loss from unauthorized use or disposition and that transactions 
      are executed in accordance with management's authorization and recorded
      properly to permit preparation of financial statements in conformity 
      with generally accepted accounting principles.
      
      Because of inherent limitations in any internal control structure, 
      errors or irregularities may occur and not be detected.  Also, 
      projection of any evaluation of the structure to future periods is 
      subject to the risk that it may become inadequate because of changes 
      in conditions or that the effectiveness of the design and operation 
      may deteriorate.
      
      Our consideration of the internal control structure would not 
      necessarily disclose all matters in the internal control structure that 
      might be material weaknesses under standards established by the 
      American Institute of Certified Public Accountants.  A material weakness 
      is a condition in which the design or operation of the specific internal 
      control structure elements does not reduce to a relatively low level the 
      risk that errors or irregularities in amounts that would be material in 
      relation to the financial statements being audited may occur and not be 
      detected within a timely period by employees in the normal course of 
      performing their assigned functions.  However, we noted no matters 
      involving the internal control structure, including procedures for 
      safeguarding securities, that we consider to be material weaknesses as 
      defined above as of August 31, 1996.
      
      This report is intended solely for the information and use of management 
      and the Securities and Exchange Commission.
      
      
      
      
      PRICE WATERHOUSE LLP 


For period ending August 31, 1996 Attachment 77C
File Number 811-
PaineWebber Master Series, Inc. - Balanced Fund
                                       
                                       
A special meeting of shareholders was held on April 15, 1996, at which the 
following proposals were approved:

To vote for or against the following changes to the Fund s
fundamental investment restrictions and policies (the
enumeration below follows that used in the related proxy
statement):
                                             Shares     Shares     
                                             Voted      Voted       Shares
                                             For        Against     Abstain

1. Modification of Fundamental 
Restriction on Portfolio Diversification 
for Diversified Funds:                      8,648,607    160,215     813,345

2. Modification of Fundamental 
Restriction on Concentration:               8,648,607    160,215     813,345


3. Modification of Fundamental 
Restriction on Senior Securities and 
Borrowing:                                  8,648,607    160,215     813,345


4. Modification of Fundamental 
Restriction on Making Loans:                8,648,607    160,215     813,345


5. Modification of Fundamental 
Restriction on Underwriting Securities:     8,648,607    160,215     813,345


6. Modification of Fundamental 
Restriction on Real Estate Investments:     8,648,607    160,215     813,345


7. Modification of Fundamental  
Restriction on Investing in Commodities:    8,648,607    160,215     813,345


8. Elimination of Fundamental Restriction 
on Margin Transactions:                     8,648,607    160,215     813,345


9. Elimination of Fundamental Restriction 
on Short Sales:                             8,648,607    160,215     813,345


10.  Elimination of Fundamental Restriction 
on Investments in Oil, Gas and Mineral 
Leases and Programs:                        8,648,607    160,215     813,345


11.  Elimination of Fundamental Restriction 
on Investments in Other Investment 
Companies:                                  8,648,607    160,215     813,345


12.  Elimination of Fundamental Restriction 
Relating to Purchases of Securities Not 
Permitted under Investment Objective:       8,648,607    160,215     813,345


     In addition to the item noted above, the Fund s shareholders elected 
     board members.  Pursuant to Instruction 2 of Sub-Item 77C of Form N-SAR, 
     it is not necessary to provide in this exhibit details concerning 
     shareholder action on this proposal since there were no solicitations 
     in opposition to the registrant s nominees and all of the nominees were 
     elected.

     A more complete description of the proposal referred to above is hereby 
     incorporated by reference to the Fund s proxy materials dated February 
     28, 1996 relating to the Special Meeting of Shareholders.  These 
     Schedule 14A materials were filed with the Securities and Exchange 
     Commission via EDGAR on February 28, 1996; the accession code number 
     was 0000950112-96-000634. 

For period ending August 31,1996              Attachment 77D
File Number 811-



     PaineWebber Master Series - Balanced Fund amended its non-fundamental 
     investment policies to permit investments in options and futures.

     PaineWebber Master Series - Balanced Fund eliminated its policy of 
     generally not investing in stocks of issuers with market capitalization 
     below $300 million.

For filing period ended August 31, 1996                          Exhibit 77I

File number  811-


PaineWebber Master Series-Balanced Fund


     The Fund has taken actions during the period covered by this report 
     in an attempt to conform the nomenclature used for its share classes 
     with the uniform nomenclature system suggested by the Investment 
     Company Institute.

     Shares of the Fund outstanding prior to November 10, 1995, that had been 
     designated Class D shares were redesignated Class C shares as of that 
     date.

     In addition, on July 26, 1996, the Fund commenced offering a new class 
     of shares.  These new shares carry the designation Class Y shares and 
     they do not have initial or contingent deferred sales charges or 
     ongoing distribution and service fees.

     The current Prospectuses and Statements of Additional Information of the 
     Fund contain a complete description of the above referenced share classes 
     and are hereby incorporated by reference in response to this Item 77I 
     of Form N-SAR as follows:

     The Prospectus and Statement of Additional Information included in the 
     Registrant's Registration Statement on Form 485APOS filed with the 
     Securities and Exchange Commission through EDGAR on June 28, 1996, 
     (Accession No. :0000950112-96-002238 is incorporated herein by 
     reference in response to this Sub-Item.
FORM 10f-3     FUND:  PaineWebber Master Series-Balanced Fund    

Record of Securities Purchased Under the Fund's Rule 10f-3 Procedures


1.   Issuer:  Sterling Commerce                             

2.   Date of Purchase:  3/8/96            
3.  Date offering commenced: 3/8/96    

4.   Underwriters from whom purchased:  Alex Brown          

5.   "Affiliated Underwriter" managing or participating in syndicate:

     Paine Webber                                           

6.   Aggregate principal amount of purchase:  $96,000       

7.   Aggregate principal amount of offering:  $288,000,000  

8.   Purchase price (net of fees and expenses):  24         

9.   Initial public offering price:  24                     

10.  Commission, spread or profit:           %    $0.80     




11.  Have the following conditions been satisfied?            YES    NO


a. The securities are part of an issue registered under       _Y_   ___ 
   the Securities Act of 1933 which is being offered to
   the public or are "municipal securities" as defined in
   Section 3(a)(29) of the Securities Exchange Act   of
   1934.


b. The securities were purchased  prior to the end of the
   end first full  business day of  the offering  at  not
   more than the initial  offering price (or, if a  rights 
   offering, , the securities were  purchased  on or
   before the  fourth day preceding the  day  on which
   the offering terminated.                                   _Y_   ___


c. The underwriting was a firm commitment                     
   underwriting.                                              _Y_   ___


d. The commission, spread or profit was reasonable
   and fair in relation to that being received by others 
   for underwriting similar securities during the same
   period.                                                    _Y_   ___


e. (1) If securities are registered under the Securities
       Act of 1933, the issuer of the securities and its
       predecessor have been in continuous operation for
       not less than three years.                             _Y_   ___ 

   (2) If securities are municipal  securities,  the 
       issue of securities has received an  investment 
       grade rating from  a nationally recognized 
       statistical  rating organization or, if the  
       issuer or entity supplying the revenues from 
       which the issue  is to be paid shall have been 
       in  continuous operation for less than three years 
       (including any predecessor), the issue has received 
       one of the three highest ratings from at least one 
       such rating         organization.                      _NA_   ___


f. The amount of such securities purchased by all of
   the investment companies advised by Mitchell
   Hutchins did not exceed 4% of the principal amount
   of the offering or $500,000 in principal amount,
   whichever is greater, provided that in no event did
   such amount exceed 10% of the principal amount of
   the offering.                                              _Y_   ___   


g. The purchase price was less than 3% of the Fund's
   total assets.                                               _Y_   ___


h. No Affiliated Underwriter was a direct or indirect
   participant in or beneficiary of the sale or, with
   respect to municipal securities, no purchases were
   designated as group sales or otherwise allocated to
   the account of any Affiliated Underwriter.                  _Y_   ___









Approved:  Mark Tincher       Date:  4/9/96  



FORM 10f-3     FUND:  PaineWebber Master Series-Balanced Fund    

Record of Securities Purchased Under the Fund's Rule 10f-3 Procedures


1.   Issuer:  Trident                                       

2.   Date of Purchase:  2/26/96                             
3.  Date offering commenced:  2/26/96   

4.   Underwriters from whom purchased:  Prudential Securities    

5.   "Affiliated Underwriter" managing or participating in syndicate:

     Paine Webber                                           

6.   Aggregate principal amount of purchase:  $64,000       

7.   Aggregate principal amount of offering:  $48,000,000   

8.   Purchase price (net of fees and expenses):  $16        

9.   Initial public offering price:  $16                    

10.  Commission, spread or profit:           %    $0.66     




11.  Have the following conditions been satisfied?              YES    NO


a. The securities are part of an issue registered under
   the Securities Act of 1933 which is being offered to
   the public or are "municipal securities" as defined in
   Section 3(a)(29) of the Securities Exchange Act of 1934.     _Y_    ___




b. The securities were purchased  prior to the end of the
   end first full  business day of  the offering  at  not
   more than the initial  offering price (or, if a  rights 
   offering, , the securities were  purchased  on or
   before the  fourth day preceding the  day  on which
   the offering terminated.                                     _Y_    ___ 



c. The underwriting was a firm commitment
   underwriting.                                                _Y_    ___



d. The commission, spread or profit was reasonable
   and fair in relation to that being received by others
   for underwriting similar securities during the same
   period.                                                      _Y_    ___



e. (1) If securities are registered under the Securities
       Act of 1933, the issuer of the securities and its
       predecessor have been in continuous operation for
       not less than three years.                               _Y_    ___


   (2) If securities are municipal securities, the issue
       of securities has received an  investment grade 
       rating from  a nationally recognized statistical  
       rating organization or, if the issuer or entity 
       supplying the revenues from which the issue is to
       be paid shall have been in  continuous operation 
       for less than three years (including any predecessor),
       the issue has received one of the three highest 
       ratings from at least one such rating organization.      _NA_    ___


f. The amount of such securities purchased by all of
   the investment companies advised by Mitchell
   Hutchins did not exceed 4% of the principal amount
   of the offering or $500,000 in principal amount,
   whichever is greater, provided that in no event did
   such amount exceed 10% of the principal amount of
   the offering.                                               _Y_    ___ 



g. The purchase price was less than 3% of the Fund's
   total assets.                                               _Y_    ___


h. No Affiliated Underwriter was a direct or indirect
   participant in or beneficiary of the sale or, with
   respect to municipal securities, no purchases were
   designated as group sales or otherwise allocated to
   the account of any Affiliated Underwriter.                  _Y_    ___ 





Approved:  Mark Tincher       Date:  3/4/96  


FORM 10f-3     FUND:  PaineWebber Master Series-Balanced Fund    

Record of Securities Purchased Under the Fund's Rule 10f-3 Procedures


1.   Issuer:  Penske Motor Sport                            

2.   Date of Purchase:  3/26/96       3.  Date offering commenced:  3/26/96   
4.   Underwriters from whom purchased:  First Boston        

5.   "Affiliated Underwriter" managing or participating in syndicate:

     Paine Webber                                           

6.   Aggregate principal amount of purchase:  $36,000       

7.   Aggregate principal amount of offering:  $78,000,000   

8.   Purchase price (net of fees and expenses):  24         

9.   Initial public offering price:  24                     

10.  Commission, spread or profit:           %    $0.98     




11.  Have the following conditions been satisfied?             YES     NO


a. The securities are part of an issue registered under
   the Securities Act of 1933 which is being offered to
   the public or are "municipal securities" as defined in
   Section 3(a)(29) of the Securities Exchange Act   of
   1934.                                                        _Y_    ___ 


b. The securities were purchased  prior to the end of the
   end first full  business day of  the offering  at  not
   more than the initial  offering price (or, if a  rights 
   offering, , the securities were  purchased  on or
   before the  fourth day preceding the  day  on which
   the offering terminated.                                     _Y_    ___ 



c. The underwriting was a firm commitment
   underwriting.                                                _Y_    ___ 


d. The commission, spread or profit was reasonable
   and fair in relation to that being received by others 
   for underwriting similar securities during the same
   period.                                                      _Y_    ___ 



e. (1) If securities are registered under the Securities
       Act of 1933, the issuer of the securities and its
       predecessor have been in continuous operation for
       not less than three years.                               _Y_    ___ 


    (2)  If securities are municipal  securities, the issue
         of securities has received an  investment grade 
         rating from  a nationally recognized statistical  
         rating organization or, if the  issuer or entity 
         supplying the revenues from which the issue is to 
         be paid shall have been in continuous operation for 
         less than three years (including any predecessor), 
         the issue has received one of the three highest 
         ratings from at least one such rating organization.     _NA_    ___


f. The amount of such securities purchased by all of
   the investment companies advised by Mitchell
   Hutchins did not exceed 4% of the principal amount
   of the offering or $500,000 in principal amount,
   whichever is greater, provided that in no event did
   such amount exceed 10% of the principal amount of
   the offering.                                                 _Y_    ___ 



g. The purchase price was less than 3% of the Fund's
   total assets.                                                 _Y_    ___



h. No Affiliated Underwriter was a direct or indirect
   participant in or beneficiary of the sale or, with
   respect to municipal securities, no purchases were
   designated as group sales or otherwise allocated to
   the account of any Affiliated Underwriter.                    _Y_    ___ 





Approved:  Mark Tincher       Date:  4/9/96  

FORM 10f-3     FUND:  PaineWebber Master Series-Balanced Fund    

Record of Securities Purchased Under the Fund's Rule 10f-3 Procedures


1.   Issuer:  TWA                                           

2.   Date of Purchase:  3/18/96                             
3.  Date offering commenced:  3/18/96   

4.   Underwriters from whom purchased:  Alex Brown          

5.   "Affiliated Underwriter" managing or participating in syndicate:

     Paine Webber                                           

6.   Aggregate principal amount of purchase:  $750,000      

7.   Aggregate principal amount of offering:  $175,000,000  

8.   Purchase price (net of fees and expenses):  50         

9.   Initial public offering price:  50                     

10.  Commission, spread or profit:           %    $0.975    




11.  Have the following conditions been satisfied?              YES     NO


a. The securities are part of an issue registered under
   the Securities Act of 1933 which is being offered to
   the public or are "municipal securities" as defined in
   Section 3(a)(29) of the Securities Exchange Act   of
   1934.                                                        _Y_     ___



b. The securities were purchased  prior to the end of the
   end first full  business day of  the offering  at  not
   more than the initial  offering price (or, if a  rights 
   offering, , the securities were  purchased  on or
   before the  fourth day preceding the  day  on which
   the offering terminated.                                     _Y_     ___ 


c. The underwriting was a firm commitment
   underwriting.                                                _Y_     ___

d. The commission, spread or profit was reasonable
   and fair in relation to that being received by others 
   for underwriting similar securities during the same
   period.                                                      _Y_     ___


e. (1) If securities are registered under the Securities
       Act of 1933, the issuer of the securities and its
       predecessor have been in continuous operation for
       not less than three years.                               _Y_     ___


   (2) If securities are municipal  securities,  the issue
       of securities has received an  investment grade rating
       from  a nationally recognized statistical rating
       organization or, if the issuer or entity supplying the 
       revenues from which the issue  is to be paid shall
       have been in  continuous operation for less than 
       three years (including any predecessor), the issue
       has received one of the three  highest ratings from at
       least one such rating         organization.              _NA_     ___  


   f.  The amount of such securities purchased by all of
       the investment companies advised by Mitchell
       Hutchins did not exceed 4% of the principal amount
       of the offering or $500,000 in principal amount,
       whichever is greater, provided that in no event did
       such amount exceed 10% of the principal amount of
       the offering.                                            _Y_     ___


g. The purchase price was less than 3% of the Fund's
   total assets.                                                _Y_     ___



h. No Affiliated Underwriter was a direct or indirect
   participant in or beneficiary of the sale or, with
   respect to municipal securities, no purchases were
   designated as group sales or otherwise allocated to
   the account of any Affiliated Underwriter.                   _Y_     ___



Approved: Mark Tincher       Date:  4/9/96  



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