Sinnott, Edmund Ware, 1888- Principles of genetics / by Edmund Ware Sinnot, L.C. Dunn. - 4th ed. - New York : MacGraw-Hill , 1950. - xiv, 505 p. : ill., ports. ; 24 cm. - MacGraw-Hill publications in the botanical sciences. . Includes bibliographical references and index Subjects--Topical Terms: Heredity. Variation (Biology). Eugenics. Dewey Class. No.: 575.1 SIN