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SUPPLEMENT TO THE COMMON CLASS PROSPECTUS
WARBURG PINCUS EMERGING GROWTH FUND
WARBURG PINCUS SMALL COMPANY VALUE FUND
WARBURG PINCUS SMALL COMPANY GROWTH FUND
WARBURG PINCUS POST-VENTURE CAPITAL FUND
The following supersedes contrary information in the section in the funds'
Common Class Prospectus entitled "Other Information -- About the Distributor".
Effective January 3, 2000, Provident Distributors, Inc., located at Four Falls
Corporate Center, West Conshohocken, PA 19428-2961, became the funds'
distributor, and is responsible for making the funds available to you.
Credit Suisse Asset Management Securities, Inc. (CSAMSI) provides certain
shareholder and other services related to the sale of the Common Class for which
it is paid the distribution and service (12b-1) fee described in the Prospectus.
Portfolio Manager Changes. The following information replaces certain
information in the funds' Common Class Prospectus:
WARBURG PINCUS SMALL COMPANY GROWTH FUND
Stephen J. Lurito and Sammy Oh serve as Co-Portfolio Managers of the fund.
Elizabeth B. Dater no longer serves as Co-Portfolio Manager of the fund.
Dated: January 7, 2000 WPUSS-16-0100A
