Supplement to:
Calvert Social Investment Fund prospectus dated
January 31, 1996
Date of this Supplement: October 8, 1996
Replace the second paragraph on page 27 with the following:
Specifically, CAMCO has retained a pool of five investment sub-advisors
("Sub-Advisors"), including U.S. Trust, to manage the Managed Growth Portfolio's
assets, through they will not necessarily be managing the Portfolio's money
at the same time. CAMCO has retained U.S. Trust, NCM Capital Management Group,
Inc., Brown Capital Management, Inc., Fortaleza Asset Management, Inc. and
Frontier Capital Management, Inc. as sub-advisors for the Portfolio.
