1. For bibliography see: Pickford, G. E., and Atz, J., The Physiology of the Pituitary Gland of Fishes (New York Zool. Soc., New York, 1957). Olivereau, M., Gen. Comp. Endocrin., 3, 312 (1963).
2. Szentagothai, J., Flerko, B., Mess, B., and Halasz, B., Hypothalamic Control of the Anterior Pituitary (Akademiai Kiado, Budapest, 1962).
3. Yamada, T., and Greer, M. A., Endocrinology, 64, 559 (1959).
4. Bogdanove, E. M., and Crabill, E. V., Endocrinology, 69, 581 (1961).
5. Ball, J. N., Olivereau, M., and Kallman, K. D., Nature, 199, 618 (1963).