THE INFLUENCE OF HORMONES ON 



THE SEXUAL BEHAVIOR OF 



DOMESTIC FOWL 



By 



DAVID E. DAVIS 



Felloiu, International Health Division, Rockefeller Foundation 

 Rio cle Janeiro, Brazil 



AND 



L. V. DOMM 



From the 



WHITMAN LABORATORY OF EXPERIMENTAL ZOOLOGY 



THE UNIVERSITY OF CHICAGO 



CHICAGO, ILLINOIS 



