THE SPERMATOCIENESLS OF DÜ1IESTIC MAMMALS. 249 



Vom Rath, 0., 1811: inj3r «lie Konstanz ilcr Chromosomenzfthl bsi Tieren. liiol. Cenlbr. Bil. Ifi. 



.Stevevs, N. M., 1908: A study of the germ cells of certain Diptern, with reference to the 



heterochromosomes nml the phcnomeun of syiiniisis. .lour. exp. Zool. Vol. 5. 



, 1910: The chromosomes in the germ-cells of culci. Ibid. Vol. 8. 



, 1911: Heterochromosomes in the gninea-pig. Hiol. Bull. Vol. 21. 



SoBOTTA, J., 1895 : Befruchtung und Furohung des Eies der Maus. Arch. mikr. An.it. Bd. 45. 

 SuTTON, W. S., 1902 : On the morphology of the chromosome group in Brochyatuln mngnn. 



Biol. Bull. Vol. 1. 

 Walker, Ch. Ed., 1911 : On the variation in chromosomes. Arch. Zellf. Bd. 6. 

 ■WiEiuv, H. Ij., 1917: The chromosomes of human spermatogenesis. Am. Jour, .\jiat. Vol. 21. 

 Wilson, Ed. B., 1910 : Studies on chromosomes. 



VI. A new type of chromosome combinatiou in Mempoilins. .lour. exj). Zool. Vol. 9. 



, 1911 n: The sex-chromosomes. .\roh. mikr. .\nat. JM. 77. 



WrL-soN, Ed. B., 1911b: Studies on chromosomes. 



Vn. A review of the chromosomes o£ Neznrn, with some more general consideration. .Jour. 

 Morph- Vol. 22. 

 . , 1912: Studies on chromosomes. 



Vin. Observation on the maturation-phenomena in certain Hemiptera and other form, with 

 oonsideratiou on synapsis and reduction. .Tour. exp. Zool. Vol. 13. 

 . , 1919: The cell in development and inheritance. Clumb. Uuiver. 



Wi.viwAT.TEB, n., 1900 : Le corpuscle intermediaire et le nombre des chromosomes du Lipins, 



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 WoDSEDALEK, J. E., 1913 : Spermatogenesis of pig with special reference to the accessory 



chromosomes. Biol. Bull. Vol. 25. 

 , 1914 : Spermatogenesis of the horse with special reference to the accessory chromosome 



and chromatoid body. Ibid. Vol. 27. 

 , 1920 : Studies on the cells of cattle with special reference to spermatogenesis, oögonia 



and sex-determin ition. Ibid. Vol. 38. 

 YoexM, B., 1917 : Some phase of spermatogenesis in the mouse. Amr. Calf. PubL 



