MUSEUM OF COMPAKATIVE ZOOLOGY. 35 



The topics for more extended consideration will not be the same 

 in successive years. The special topic for 1895-96 will be the 

 Sense Organs. 



An account of the work in Zoology 20 c is contained in the Re- 

 port on Osteology, by Dr. Slade. 



All the students engaged on special problems (Zoology 20 a) 

 made satisfactory progress in their work, except in the case of one 

 Scientific School student, who was compelled by the condition of 

 his eyes to give up Zoology. 



The degree of Doctor of Philosophy was conferred at the last 

 Commencement upon three students in Zoology, two of whom now 

 have college positions. The degree of A. M. was conferred on four 

 zoological students. 



The Zoological Club seems to have become a permanent and 

 valuable adjunct to the department. Its meetings are well attended, 

 and the interest in them does not diminish. 



By a special appropriation from the Corporation of the Uni- 

 versity, and a generous gift from the Curator of the Museum, it 

 was possible to publish in the Museum Bulletin a portion of the 

 Contributions from the Zoological Laboratory that had not been 

 provided for at the end of last year. The Contributions published 

 since my last report are, Nos. XL1I.-XLIX., as follows : — 



XLII. On the Cell Lineage of the Ascidian Egg. A Preliminary 

 Notice. By W. E. Castle. Proc. Amer. Acad., Vol. XXX. pp. 200-216. 

 2 Pis. October, 1894. 



XLIII. On the Blastodermic Vesicle of Sus scrofa domesticus. By 

 A. W. Weysse. Proc. Amer. Acad., Vol. XXX. pp. 283-323. 4 Pis. 

 December, 1894. 



XLIV. Spermatogenesis of Caloptenus femur-rubrum. Preliminary 

 Notice. By E. V. Wilcox. Anatomischer Anzeiger, Bd. X. No. 9, 

 pp. 303, 304. Dec. 19, 1894. 



XLV. On the Introitus Vaginae of certain Muridaa. By Gerrit S. 

 Miller, Jr. Proc. Bost. Soc. Nat. Hist., Vol. XXVI. pp. 459-468, 

 PI. 5. February, 1895. 



XLVI. Studies in Morphogenesis. — III. On the Acclimatization of 

 Organisms to high Temperatures. By C. B. Davenport and W. E. Castle. 

 Archiv fur Entwickelungsmechanik der Organismen, Bd. II. Heft 2, 

 pp. 227-249. July 23, 1895. 



XLVIT. Spermatogenesis of Caloptenus femur-rubrum and Cicada 

 tibicen. By E. V. Wilcox. ,Bull. Mus. Comp. Zool., Vol. XXVII. No. 1, 

 pp. 1-32. 5 Pis. May, 1895. 



