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64. Greengard, H., The Chemistry and Physiology of Hormones (1944). Washing- 

 ton, A.A.A.S. pp. 174-178. Hormones and digestion, review. 



65. Grobstein, C., and Bellamy, A. W., Proc. Soc. Exper. Biol. & Med. 41:363-365 

 (1939). Thyroid and growth in fishes. 



65a. Grossman, M. I., Physiol. Rev. 30:33-90 (1950). Review of gastrointestinal 

 hormones. 



66. Gudernatsch, J. F., Arch. Entw. Mech. 35:457-483 (1912). Thyroid and am- 

 phibian metamorphosis. 



67. Hadorn, E., Proc. Nat. Acad. Sci. 23:478-484 (1937). Larval ring-gland and 

 dipteran development. 



68. Hadorn, E., and Neel, J., Arch. Entw. Mech. 138:281-304 (1938). Larval 

 ring gland and dipteran development. 



69. VON Hagen, p., Zool. ]ahrh., Aht. Anat. 61:467-538 (1936). Thyroid and meta- 

 morphosis in fishes. 



70. Hann, H. W., Bird Banding 10:122-124 (1939). Castration and bird migration. 



71. Hanstrom, B., Hormones in Invertebrates (1939). Oxford, Clarendon. 198 p. 



72. Harms, J. W., Ztschr. wiss. Zool. 146:417-462 (1935). Thyroid and growth in 

 fishes. 



73. Harms, W., Arch. Entw. Mech. 34:90-131 (1912). Testes and ditellum pro- 

 duction in earthworms. 



74. Hasler, a. D., Meyer, R. K., and Field, H. M., Endocrinology 25:978-983 

 (1939). Hypophyseal gonadotropins in fishes. 



75. Helff, O. M., /. Exper. Zool. 45:69-93 (1926). Influence of thyroxin on O2 

 consumption of frog tadpoles. 



76. Hess, W. N., Biol. BmH. 81:215-220(1941). Inhibition of molting in egg-bearing 

 female crustaceans. 



77. Hess, W. N., and Bacon, R. L., Anat. Rec. (suppl.) 78:150 (1940). Relation of 

 testes and seminal vesicles to clitellum production in earthworms. 



78. Heumann, a., Ztschr. wiss. Zool. 138:515-554 (1931). Testes and chtellum 

 production in earthworms. 



79. Hoover, E. E., and Hubbard, H. E., Copeia, pp. 206-210 (1937). Photoperiod- 

 ism and sexual cycle of trout. 



80. HosKiNS, E. R., and Morris, M., Anat. Rec. 11:363 (1917). Thyroid and am- 

 phibian metamorphosis. 



81. Host, P., Auk. 59:388-403 1942). Light periods and seasonal plumage changes 

 in the ptarmigan. 



82. HoussAY, B. A., C. R. Soc. Biol. Paris 106:1-377 (1931). Hypophyseal gonado- 

 tropins in fishes. 



83. HoussAY, B. A., Endocrinology 30:884-897 (1942). Hypophysis and carbohy- 

 drate metabolism, review. 



84. Hughes, T. E., /. Exper. Biol. 17:331-336 (1940). Influence of parasitic castra- 

 tion in crustaceans. 



85. Ingle, D. J., in The Chemistry and Physiology of Hormones (F. R. Moulton, ed.) 

 (1944). Washington, A.A.A.S. pp. 83-103. Physiology of adrenal hormones, 

 review. 



86. Irving, G. W., Jr., in The Chemistry and Physiology of Hormones (F. R. Moul- 

 ton, ed.) (1944). Washington, A.A.A.S. pp. 28-46. Functions of posterior lobe 

 of pituitary, review. 



87. Ivy, A. C, Physiol. Rev. 10:282-335 (1930). Hormones in digestion, review. 



88. Ivy, A. C, in Glandular Physiology and Therapy (1942). Chicago, American 

 Medical Association. Ch. 30. Hormones- in digestion, review. 



89. IwANOFF, P. P., and Mestscherskoja, K. A., Zool. Jahrh., Aht. allg. Zool. u. 

 Physiol. 55:281-348 (1935). Gonadal hormone in insect reproduction. 



90. Kendeigh, S. C, Ecol. Monog. 4:299-417 (1934). Environmental factors and 

 bird migration. 



91. Kleinholz, L. H., BioZ. Bull. 70:159-184(1936). Eyestalk-hormone and retinal 

 pigment migration in crustaceans. 



92. Kleinholz, L. H., Biol. Bull. 75:510-532 (1938). Hormonal control of crusta- 

 cean retinal-pigment movements. 



