PUTNAM HEALTH SCIENCES TRUST
NSAR-A, 1996-04-29
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SIGNATURE   PAUL BUCAVALAS                               
TITLE       VICE PRESIDENT      
 

WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.

<TABLE> <S> <C>

<ARTICLE> 6
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM  Putnam Health Sciences Trust Class A AND IS QUALIFIED IN ITS EN
TIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
       
<S>                                   <C>
<PERIOD-TYPE>                         OTHER
<FISCAL-YEAR-END>	AUG-31-1996
<PERIOD-END>	FEB-29-1996
<INVESTMENTS-AT-COST >                                                            	779,078,794	   <INVESTMENTS-AT-VALUE>	1,418,525,1
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??  

</TABLE>
WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.

<TABLE> <S> <C>

<ARTICLE> 6
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM  Putnam Health Sciences Trust Class B AND IS QUALIFIED IN ITS EN
TIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
       
<S>                                   <C>
<PERIOD-TYPE>                         OTHER
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??  

</TABLE>
WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.

<TABLE> <S> <C>

<ARTICLE> 6
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM  Putnam Health Sciences Trust Class M AND IS QUALIFIED IN ITS EN
TIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
       
<S>                                   <C>
<PERIOD-TYPE>                         OTHER
<FISCAL-YEAR-END>	AUG-31-1996
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??  

</TABLE>


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