Hunter, Laboratory Problems in Civic Biology. American Book Company.
Bailey, Plant Breeding. Macmillan and Company.
Harwood, New Creations in Plant Life. The Macmillan Company.
Jordan, The Heredity of Richard Roe. American Unitarian Association.
Sharpe, Laboratory Manual, pp. 64-72, 345-347. American Book Company.
advanced
Allen, Civics and Health. Ginn and Company.
Coulter, Castle, East, Tower, and Davenport, Heredity and Eugenics. University of Chicago Press.
Davenport, Heredity in Relation to Eugenics. Henry Holt and Company.
De Vries, Plant Breeding. Open Court Publishing Company.