1. The relation between latitude and breeding seasons in birds;Baker;Proc. Zool. Soc. London, Series A,1938
2. The effect of environmental conditions on winter egg production;Bruckner;Poultry Sci.,1936
3. The relation of external temperature to spermatogenesis in the male starling;Burger;J. Exp. Zool.,1948
4. A review of experimental investigations on seasonal reproduction in birds;Burger;Wilson Bul.,1949
5. The effects of ambient temperature on production and fertilizing capacity of turkey spermatozoa;Burrows;Physiol. Zool.,1953