EXHIBIT 10
AUGUST 3, 2000
SECURITIES AND EXCHANGE COMMISSION
JUDICIARY PLAZA
450 FIFTH STREET, N.W.
WASHINGTON, D.C. 20549
RE: EXHIBIT 10, FORM N-1A
CALVERT SOCIAL INVESTMENT FUND
TECHNOLOGY FUND
2-75106 AND 811-3334
LADIES AND GENTLEMEN:
AS COUNSEL TO CALVERT GROUP, LTD., IT IS MY OPINION THAT THE
SECURITIES BEING REGISTERED BY THIS POST-EFFECTIVE AMENDMENT NO. 31 WILL BE
LEGALLY ISSUED, FULLY PAID AND NON-ASSESSABLE WHEN SOLD. MY OPINION IS BASED
ON AN EXAMINATION OF DOCUMENTS RELATED TO CALVERT SOCIAL INVESTMENT FUND (THE
"TRUST"), INCLUDING ITS DECLARATION OF TRUST, ITS BY-LAWS, OTHER ORIGINAL OR
PHOTOSTAT COPIES OF TRUST RECORDS, CERTIFICATES OF PUBLIC OFFICIALS,
DOCUMENTS, PAPERS, STATUTES, AND AUTHORITIES AS DEEMED NECESSARY TO FORM THE
BASIS OF THIS OPINION.
THEREFORE, I CONSENT TO FILING THIS OPINION OF COUNSEL WITH THE
SECURITIES AND EXCHANGE COMMISSION AS AN EXHIBIT TO THE TRUST'S POST-EFFECTIVE
AMENDMENT NO. 31 TO ITS REGISTRATION STATEMENT.
SINCERELY,
/S/JENNIFER STREAKS
ASSOCIATE GENERAL COUNSEL
