LIST OF REFERENCES II5 



^^ HAMMOND, J. 1925. Reproduction in the Rabbit. London. 



02 1938. J. Yorks. Agric. Soc, p. 2.. 



03 and DAY, F. T. 1944. y. Endocrin., 4, 53. 



0* HANSSON, A. 1947. Acta. ZooL, 28, I. 



0^ HARTMAN, c. G. 1939- Chap. 9 of Sex and Internal Secre- 

 tions. Edited by allen, e. 2nd edition. Baltimore. 



0^ HASLER, A. D., and MAYER, R. K. I942. J. Exp. ZooL, 91, 



391- 



07 HEAPE, w. 1900. Quart, y. Micr. Sci., 44, i. 



08 HiCKLiNG, c. F. 1935.^. Mar. Biol. Assoc, 20, 443. 



09 HILL, M., and PARKES, A. s. 1930. Proc. Roy. Soc. Land., By 



107, 39. 

 10 1934. Proc. Roy. Soc. Lond., B, 115, 14. 



11 HOOVER, E. E., and HUBBARD, H. E. 1937- Copeia, 4, 206. 



12 HOWARD, H. E. 1920. Territory in Bird Life. London. 



13 HUXLEY, J. 1935. Biol. Rev., 10, 427. 



1* IVANOVA, s. 1935. Arch. Exp. Path. Pharmak., 179, 349. 



1^ JASKI, c. J. 1939. Proc. Kon. Neder. Akad. Amsterdam, 



42, I. 

 16 JENKINS, J. T. 1925. The Fishes of the British Isles 



London. 

 1' JONES, F. w. 1923-5. The Mammals of South Australia. 



Adelaii^e. 



18 KERR, T. 1948. Quart, y. Micr. Set., 89, 129. 



19 KiRSCHBAUM, A., and RiNGOEN, A. R. 1936. Anat. Rec, 



64, 453. 



20 KLUijvER, H. N. 1 93 3. Versl. PlZiekt. Dtenst Wagentngen, 



69, I. 



21 KOCH, E. c. 1939. Chap. 12 of Sex and Internal Secretions. 



Edited by allen, e. 2nd edition. Baltimore. 



22 LACK, D. 1933. Proc. Zool. Soc. Lond., p. 231. 



23 1939. Proc. Zool. Soc. Lond., A, 109, 169. 



24 LAURIE, E. M. o. 1946. Proc. Roy. Soc. Lond., B, 133, 248. 



25 LEATHEM, J. H. 1 938. Endocrinology, 22, 559. 



26 LEBLOND, c. P. 1 93 8. Compt. Rend. Soc. Biol. Paris, 127, 



1248. 

 2' LiPSCHiJTZ, A. 1935. Compt. Rend. Soc. Biol. Paris, 118, 



331. 



28 LOWTHER, F. 1940. Zoologica, 25, 435. 



29 MARSHALL, A. J. 1947. Proc. Linn. Soc. {Zool.) Lond., 159, 



103. 



30 MARSHALL, F. H. A. 1 936. Phil. Trans. Roy. Soc. Lond., 



B, 226, 423. 



