1. Barott, H. G., 1937. Effect of temperature, humid ty and other factors on hatch of hens’ eggs and on energy metabolism of chick embryos. Tech. Bull. 553, U.S. Dept. Agric. 45 pp.
2. The effect of thyroxin upon the general metabolism of the intact chick embryo;Beyer;Endocrinology,,1952
3. The effect of excessive amounts of dietary vitamin A on egg production in White Leghorn hens;Biely;Poultry Sci.,1962
4. Modified growth pattern of the muscularis complexus (hatching muscle) of chick embryos following thiourea treatment or hypophysectomy by partial decapitation;Brandstetter;Anat. Rec.,1962
5. Congenital anomalies in the rat produced by excessive intake of vitamin A during pregnancy;Cohlan;Pediatrics,,1954