3 1 10 an introduction to biology SIMPSON, GEORGE GAYLORD Additional Author PITTENDRIGH, COLIN S. Additional Author TIFFANY, LEWIS H. Additional Author mixed material New York HARCOURT, BRACE AND COMPANY 1957 SIMPSON, GEORGE GAYLORD Additional Author BECK, WILLIAM S. Additional Author mixed material New York HARCOURT BRACE & WORLD INC 1965 SIMPSON, GEORGE GAYLORD Additional Author mixed material 0716715643 New York SIENTIFIC AMERICAN LIBRARY 1983