784 REPRODUCTION AND MIGRATION IN BIRDS 



Bissonnette, T. H. 1933. Does increased light absorption cause increased egg 

 production in the fowl? Poultry Sci., 12, 396-99. 



Byerly, T. C, and O. K. Moore. 1941. Clutch length in relation to period of 

 illumination in the domestic fowl. Poultry Sci., 20, 387-90. 



Callenbach, E. W., J. E. Nicholas, and R. R. Murphy. 1943. Effect of light 

 and availability of feed on egg production. Penn. Agr. Expt. Sta. Bull. 455. 



Carson, J. R., and G. Beall. 1955. Absence of response by breeder hens to 

 ultraviolet energy. Poultry Sci., 34, 256-62. 



Dobie, J. B., J. S. Carver, and June Roberts. 1946. Poultry lighting for egg 

 production. Wash. Agr. Expt. Sta. Bull. 471. 



Everett, J. W. 1956. The time of release of ovulating hormone from the rat 

 hypophysis. Endocrinology, 59, 580-85. 



Everett, J. W., and C. H. Sawyer. 1950. A 24-hour periodicity in the "LH- 

 release apparatus" of female rats, disclosed by barbiturate sedation. Endo- 

 crinology, 47, 198-218. 



Earner. D. S., L. R. Mewaldt, and S. D. Irving. 1953a. The roles of darkness 

 and light in the activation of avian gonads. Science, 118, 351-52. 



. 1953b. The roles of darkness and light in the photoperiodic response 



of the testes of white-crowned sparrows. Biol. Bull., 105, 434-41. 



Fraps, R. M. 1954. Neural basis of diurnal periodicity in release of ovulation- 

 inducing hormone in fowl. Proc. Natl. Acad. Sci. U. S., 40, 348-56. 



. 1955a. The varying effects of sex hormones in birds. Mem. Soc. Endo- 

 crinol., 4, 205-19. 



1955b. Egg production and fertility in poultry. Progress in the 



Physiology of Farm Animals, 2, 661-740. Butterworths Scientific Publica- 

 tions, London. 

 Fraps, R. M., and H. L. Fevold. 1955. Delaying action of gonadotrophins on 



ovulation in the hen. Proc. Soc. Exptl. Biol. Med., 90, 440-46. 

 Fraps, R. M., B. H. Neher, and I. Rothchild. 1947. The imposition of diurnal 



ovulatory and temperature rhythms by periodic feeding of hens maintained 



under continuous light. Endocrinology, 40, 241-50. 

 Goodale, H. D. 1923. The influence of certain methods of management on egg 



production. I. Their influence on winter egg production. Poultry Sci., 3, 173- 



79. 

 Greer, M. A. 1957. Studies on the influence of the central nervous system on 



anterior pituitary function. Recent Progr. Hormone Research, 13, 67-104. 

 Hammond, J., Jr. 1954. Light regulations of hormone secretion. Vitamins and 



Hormones. 12, 157-206. 

 Harris, G. W. 1955. Neural Control of the Pituitary Gland. Monographs 



Physiological Society, No. 3. Edward Arnold Ltd., London. 

 Heywang, B. W. 1938. The time factor in egg production. Poultry Sci., 17, 



240-47. 

 Huston, T. M. and A. V. Nalbandov. 1953. Neurohumoral control of the 



pituitary in the fowl. Endocrinology, 52, 149-56. 

 Hutt, F. C. 1949. Genetics of the Fowl. McGraw-Hill, New York. 

 Jull, M. A. 1952. Poultry Breeding. Wiley, New York. 

 Kennard, D. C, and V. D. Chamberlin. 1931. All-night light for layers. Ohio 



Agr. Expt. Sta. Bull. 476. 



