MUSEUM OF COMPARATIVE ZOOLOGY. 15 



Harvard University. Three numbers of the Contributions from 

 the Station have been published during the year. 



During the April recess Professor Mark delivered a lecture at 

 Colgate University on "Some vestigial organs in man." 



Professor Parker spent much time during the year in perfecting 

 an appliance for the production of spectral light of measured 

 intensity. He also wrote for "Folia neurobiologica " reviews of 

 the American papers on the physiology of the nervous system. 



Professor Wheeler's assistant, Mr. W. Reiff, devoted one half 

 his time to a continuation of the study of the wilt disease of the 

 Gypsy moth, in cooperation with the State Forester, the other 

 half being given to work on the Bussey collection of insects. 



During November and December Professor Castle delivered 

 a course of eight lectures at the Lowell Institute in Boston on 

 "Heredity in relation to evolution and animal breeding." The 

 lectures are to be published. In February, 1911, he delivered a 

 lecture on "The nature of unit characters," before the Harvey 

 Society of New York, and in July, 1911, at the University of 

 Chicago, two lectures, on "The method of evolution," and on 

 " Heredity and sex." These three lectures are also to be published. 

 Professor Castle has had in his research work the cooperation of 

 Research Fellow, Dr. J. C. Phillips. 



Mr. Brues has devoted some time to the preparation of a poster 

 for the Women's Municipal League illustrating the activities of 

 the housefly. 



The Zoological Club held twenty-three meetings; twenty origi- 

 nal papers and seven reviews were presented. The average 

 attendance was between fourteen and fifteen. 



Publications. August 1, 1910 -July 31, 1911. 

 Contributions from the Zoological Laboratory. 



209. Parker, G. H. — Olfactory reactions in fishes. Journ. exp~ 



zobl, August, 1910, vol. 8, p. 535-542. 



210. Banta, A. M. — A comparison of the reactions of a species of 



surface isopod with those of a subterranean species. — Part 

 II. Journ. exp. zooL, August, 1910, vol. 8, p. 439-488. 



211. Hurwitz, S. H. — The reactions of earthworms to acids. Proc. 



Amer. acad. arts and sci., September, 1910, vol. 46, p. 65-81. 



212. Cole, L. W. — Reactions of frogs to chlorides of ammonium 



