O 2

Standard Scheme of Descent. (After Galton.)

O 3

Comparison of Mr. Booth's Classification of All London with the Normal Classes. (After Galton.)

O 4

Descent of Qualities in a Population. (After Galton.)

O 5

Inheritance of Ability, as exemplified in the Darwin, Galton, and Wedgwood Families. (After Whetham and Marshall.)

P

Exhibited by the American Breeders' Association—Eugenics Section.