162 THE MAMMALIAN EGG 



Hamilton, W. J., & Laing, J. A. (1946) 'Development of the egg of the cow up to the 



stage of blastocyst formation.' J. Anat., Land. 80, 194. [57, 78] 

 Hamilton, W. J., & Samuel, D. M. (1956) 'The early development of the golden hamster 



(Cricetus auratus).' J. Anat., Lond. 90, 395. [31, 41, 69] 

 Hammond, J. : 



(1934) 'The fertilization of rabbit ova in relation to time. A method of controlling the 

 litter size, the duration of pregnancy and the weight of the young at birth.' J. exp. 

 Biol. 11, 140. [11, 101] 

 (1950a) 'Problems concerning the transplantation of fertilized ova or "artificial pregnancy".' 



An. Fac. Med. Montevideo, 35, 810. [109] 

 (1950b) 'The possibility of artificial pregnancy in cattle.' J. Minist. Agric. 57, 67. [109] 

 Hammond, J., & Walton, A. (1934) 'Notes on ovulation and fertilization in the ferret.' 



J. exp. Biol. 11, 307. [10] 

 Hammond, J., Jr.: 



(1949a) 'Recovery and culture of tubal mouse ova.' Nature, Lond. 163, 28.' [146] 

 (1949b) 'Survival of mouse ova in vitro: and induced multiple pregnancies in cattle.' Proc. 

 1st not. Egg-Transfer Breed. Con/., Texas, p. 22. [146] 

 Hancock, J. L. : 



(1958) 'The examination of pig ova.' Vet. Rec. 70, 1200. [69, 107] 



(1959) 'Polyspermy of pig ova.' Aniw. Prod. 1, 103. [41, 43] 



(1961) 'Fertilization in the pig.' J. Reprod. Fertil. 2. (In press.) [32, 41, 43, 70] 

 Hansson, A. (1947) 'The physiology of reproduction in mink (Mustela vison Skreb) with 



special reference to delayed implantation.' Acta zool. 28, 1. [10] 

 Harrison, R. J. (1948) 'The changes occurring in the ovary of the goat during the estrous 



cycle and in early pregnancy.' J. Anat., Lond. 82, 21. [20] 

 Harter, B. T. (1948) 'Glycogen and carbohydrate-protein complexes in the ovary of the 



white rat during the oestrous cycle.' Anat. Rec. 102, 349. [90] 

 Hartman, C. G. : 



(1916) 'Studies in the development of the opossum Didelphis virginiana L. I, II.' J. Morph. 



27, 1. [102] 

 (1919) 'Studies in the development of the opossum Didelphis virginiana L. Ill, IV.' J. 



Morph. 32, 1. [55, 84, 102] 

 (1924) 'Observations on the viability of the mammalian ovum.' Anwr.J. Ohstet. Gynec. 7. 



40. [13] 

 (1926) 'Polynuclear ova and polyovular follicles in the opossum and other mammals, with 

 special reference to the problem of fecundity.' Amer.J. Anat. 37, 1. [20] 



(1928) 'The breeding season of the opossum, Didelphis virginiana, and the rate of intra- 

 uterine and postnatal development.' J. Morph. 46, 143. [13] 



(1929) 'How large is the mammalian egg?' Quart. Rev. Biol. 4, 373. [15] 



(1953) 'Early death of the mammalian ovum with special reference to the aplacental 

 opossum.' Mammalian Germ Cells, p. 253. Ed. G. E. W. Wolstenholme, M. P. Cameron 

 and J. S. Freeman. Churchill, London. [85] 

 Harvey, Elmer B. (1958) 'Tubal ovum in Ochotonidae (Lagomorpha).' Anat. Rec. 132, 



113. [92] 

 Harvey, Ethel B. : 



(1936) 'Parthenogenetic mcrogony or cleavage without nuclei in Arhacia punetulataJ 1 Biol. 



Bull., Woods Hole, 71, 101. [67] 

 (1956) The American Arhacia and other sea urchins.' Princeton University Press, New Jersey. 

 [153] 

 Harvey, W. (1651) Exercitationes de generatione animalium. Amstelodami, and Londini. [1] 

 Hay, M. F., Adams, C. E., & Lutwak-Mann, C. (I960) 'The effect of certain agents upon 

 the early rabbit embryo.' J. Endocrin. 20, ii. [82] 



