1. The relation of keel bone to egg production;Asmundson;Sci. Agr.,1921
2. The relation of some head characters and egg production among Cantonese fowls;Fronda;Philippine Agr.,1931
3. A study of the relation between body conformation in laying fowls and size and shape of egg laid;Hall;Cornell Univ. Thesis. Cited by Rice, Hall, and Marble (1930).,1923
4. Sex dimorphism and variability in the appendicular skeleton of the Leghorn fowl;Hutt;Poul. Sci.,1921
5. The selection of breeding stock in relation to the inheritance of form and function in the domestic fowl;Jull;Poul. Sci.,1925