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

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000862502
<NAME> Salomon Brothers Small Cap Growth Fund
<SERIES>
   <NUMBER>011
   <NAME>Salomon Brothers Investment Series Funds Inc.

<S>                             <C>
<PERIOD-TYPE>                  6-MOS
<FISCAL-YEAR-END>                               Dec-31-2000
<PERIOD-END>                                    Jun-30-2000
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<SENIOR-LONG-TERM-DEBT>                                   0
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<SENIOR-EQUITY>                                           0
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<OVERDISTRIBUTION-NII>                                    0
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<OTHER-INCOME>                                            0
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<EQUALIZATION>                                            0
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<DISTRIBUTIONS-OTHER>                                     0
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<EXPENSE-RATIO>                                        2.10



</TABLE>