MUSEUM OF COMPARATIVE ZOOLOGY. 11 



in Zoology 146, four in Harvard and one in RadclifTe took the 

 laboratory work, the others presented theses. 



In the University Extension Course in Elementary Zoology by 

 Professor Parker there were twenty-four students. Mr. H. G. 

 Coar was the assistant. 



Work in research, though in several cases interrupted by war 

 demands, was counted as the equivalent of courses as follows: — 

 in Harvard, Zoology 20a and 206, under Professor Mark, eight 

 courses; Zoology 20c, under Professor Parker, nine and a half 

 courses; Zoology 20d, under Professor Castle, one course; Zoology 

 20e and 20g, under Assistant Professor Rand, seven and a half 

 courses: Zoology 20f, under Professor Wheeler and Assistant 

 Professor Brues, six courses; in Radcliffe, Zoology 20a, under 

 Professor Mark, one course ; Zoology 20c, under Professor Parker, 

 two and a half courses; Zoology 20g, under Assistant Professor 

 Rand, a half course. Courses 20d and 20f were carried on at the 

 Bussey Institution. 



The degree of Ph.D. was conferred in February on Alfred 

 Clarence Redfield, whose thesis was on "The physiology of the 

 melanophores of the horned toad," and in June on Selig Hecht, 

 whose thesis was entitled " The physiology of Ascidia atra Lesueur", 

 and on Dwight Elmer Minnich, whose thesis was on "The photic 

 reactions of the honey bee, Apis meUifera L. A quantitative 

 study in circus movements." 



Owing to the demands of the war, only one Harvard student in 

 addition to the Resident Xaturalist was at work at the Bermuda 

 Biological Station during the summer. Aid from the Humboldt 

 Fund to the amount of SI 50 was granted during the year. 



The Harvard Table at the Marine Biological Laboratory, 

 Woods Hole, was occupied by a research student in physiology, 

 and the Radcliffe table was shared by a RadclifTe Senior, pursu- 

 ing physiology, and a Radcliffe Junior, who took the course in 

 embryology. 



At the twenty-seven meetings held at the Zoological Club the 

 average attendance was about 18. Thirty-three original papers 

 and eleven reviews were presented. 



Lists of the Contributions from the Zoological Laboratory and 

 from the Bermuda Biological Station for Research are given on 

 p. 33-35; other papers by members of the Department are listed 

 under the authors' names. 



