218 bulletin: museum of compakative zoology. 



Tschermak, E. 



:00. Ucber Kiiustliclic Kreuzung bei Pisuni sativum. Zeit. f. landwirths. 

 Versucbswesen in Oester., Bd. 3, pp. 465-555. 



Tutt, J. W. 



'98. Some Results of Recent Experiments in Hybridising Tepbrosia bistor- 

 tata and Tepbrosia crepuscnlaria. Trans. Ent. Soc. Lend. I'or tbc Year 

 1S9S, pt. 1, Apr. 20, pp. 17-4-;i. 



Wedekind, W. 



:02. Die Partlieuogcnese uud das Scxuali:cesctz. Verb. V. luternat. Zool.- 

 Congresses zu Berlin, 12-16 Aug. 1901, pp. 403-409. 



Weismann, A. 



'93. The Germ-pksm, A Theory of Heredity. Translated by W. N. Parker, 

 xxii + 477 pp., 24 fig. New York. 



Weismann, A., und Ischikawa, C. 



'88. Wciterc UntcrsucbungCMi zum Zablengesetz der Ricbtungskorper. 

 Zool. Jabrb., Abtb. f. Anal u. Oniog., Bd. 3, Heft 3, 30. Nov., pp. 575- 

 610, Taf. 25-28. 



