Upon the formation of a deaf variety of the human race
By: By Alexander Graham Bell
Published: 1884
Language: eng
Subjects: Genetic Selection; Persons With Hearing Impairments; Statistics & numerical data; Marriage; Deafness; Genetics; Deaf; Tables
Notes: In National academy of sciences, Washington, D.C. Memoirs. Washington, 1884 30 x 24 cm. v.2 (4th memoir) p. 177-262. tables, diagrs. (1 fold.).

Includes bibliographical references.