156 bulletin: museum of comparative zoology. 



Sinety, R. de. 



:01. Recherches siir la Biologie et rAnatomie des Phasmes. La Cellule^ 

 Tom. 19, pp. 117-278, 5 pi. 

 Spichardt, C. 



'86. Beitrag zu der Entwicklung der mannlichen Genitalien und ihrer 

 Ausfiihrgange bei Lepidopteren. Verhand. d. naturh. Ver., Bonn., 

 Jahrg. 43, pp. 1-34, Taf. 1 

 Stevens, Nellie M. 



:03. On the Ovogenesis and Spermatogenesis of Sagitta bipunctata. 

 Zool. Jahrb., Abth. f. Anat., Bd. 18, pp. 227-240, Taf. 20, 21. 

 Stevens, Nellie M. 



:04. On the Germ Cells and the Embryology of Planaria simplissima. 

 Proc. Acad. Nat. Sci., Phila., Vol. 56, pp. 208-220, pi. 13-16, 5 textfig. 

 Stevens, Nellie M. 



:04''. Further Studies on the Ovogenesis of Sagitta. Zool. Jahrb., 

 Abth. f. Anat., Bd. 21, pp. 243-252, Taf. 16. 

 Stevens, Nellie M. 



:05. A Study of the Germ Cells of Aphis rosae and Aphis oenotherae. 

 Jour. Exp. Zool., Vol. 2, pp. 313-333, 4 pi. 

 Stevens, Nellie M. 



lOS". Studies in Spermatogenesis with especial Reference to the "Ac- 

 cessory Chromosome." Carnegie Inst. Washington, Publ. 36, [Part 1], 

 32 p., 7 pi. 

 Stevens, Nellie M. 



:06. Studies on the Germ Cells of Aphids. Carnegie Inst. Wasliington, 

 Publ. 51, 28 p., 4 pi. 

 Stevens, Nellie M. 



:06''. Studies in Spermatogenesis. Part 2. Sex Determination. Car- 

 negie Inst. Washington, Publ. 36, Part 2, pp. 33-94, pi. 8-15. 

 Struckmann, C. 



:05. Eibildung, Samenbildung und Befruchtung von Strongylus filaria. 

 Zool. Jahrb., Abth. f. Anat., Bd. 22, pp. 577-628, Taf. 29-31, 18 Textfig. 

 Sutton, W. S. 



:00. The Spermatogonia! Divisions in Brachystola magna. Kansas 

 Univ. Quart., Vol. 9, pp. 135-160, pi. 32-35. 

 Sutton, W. S. 



:02. On the Morphology of the Chromosome Group in Brachystola 

 magna. Biol. Bull., Vol. 4, pp. 24-39, 11 textfig. 

 Sutton, W. S. 



:03. The Chromosomes in Heredity. Biol. Bull., Vol. 4, pp. 231-251. 

 Tichomirow, A. 



'98. Zur Anatomie des Insektenhodens. Zool. Anz., Bd. 21, pp. 623- 

 030. 5 Textfig. 

 Toyama, K. 



'94. On the Spermatogenesis of the Silk- Worm. Bull. Coll. Agric.,. 

 Imp. Univ. Japan, Vol. 2, pp. 125-157, pi. 3, 4. 



