1. Artificial insemination of chickens and turkeys;Burrows;U.S.D.A. Circular 525.,1939
2. Preliminary studies on the preservation of semen of stallions;Gonzaga;Philippine Jour. Anim. Indust. 371-377.,1936
3. Life duration of cock spermatozoa outside the body;Ishikawa;Proc. 4th World's Poul. Congress.,1930
4. Resistance of spermatozoa to very low temperatures;Jocknel;Klin. Wochschs.,1938
5. Physiological investigation of spermatozoa of cattle, Exp;Komatso;Sta. Rec.,1930