MUSEUM OF COMPARATIVE ZOOLOGY. 9 



It is especially gratifying to record the promotion of Assistant 

 Professor Parker to be Professor of Zoology, and the promotion 

 of Dr. Rand to a seat in the Faculty of Arts and Sciences. 



Zoology 1 was conducted by Assistant Professor Parker essen- 

 tially as in the year 1904-05. The chief assistant in Harvard 

 University was Mr. L. J. Cole ; the sub-assistants were Messrs. 

 E. D. Congdon, A. S. Pearse, and H. MacCurdy. In Radcliffe 

 College the assistant was Mr. J. A. Long. 



Zoology 2 was given by Assistant Professor Castle, substan- 

 tially as in previous years. Mr. I. A. Field was chief assistant, 

 and Mr. A. M. Banta, sub-assistant in the Harvard class. Mr. 

 H. MacCurdy had charge of the laboratory work in Radcliffe 

 College. 



Dr. Rand was in charge of Zoology 3, and conducted the course 

 in the same way as in the previous year, making satisfactory use 

 of occasional " quizzes." The lighting of the laboratory was much 

 improved. The assistant in Harvard College was Mr. H. E. 

 Walter ; in Radcliffe, Mr. M. Copeland. 



As announced in the Report for 1904-05, several of the courses 

 (Zoology 5, 10, 11, and 13) have been expanded or altered in 

 scope. The changes there announced as proposed changes have 

 been carried out so far as they relate to the year 1905-06. 



The course in technique (Zoology 4) was carried on as usual 

 by Professor Mark with the aid of Dr. Rand, who had charge of 

 the laboratory instruction and gave a few lectures on the histology 

 of Glossiphonia, the animal studied in this course. 



Zoology 6 (Organogeny of Vertebrates) was given for the first 

 time ; it is in future to alternate with Zoology 5. The laboratory 

 work was confined to the study of the development of the more 

 important organs in the chick up to the fifth day of incubation, 

 and was in charge of Dr. Rand. The lectures were given by Pro- 

 fessor Mark ; the subject was treated in a comparative way. 



In Zoology 11a and 115, given by Assistant Professor Castle, 

 three of the Graduate students enrolled in the course, attended 

 the lectures without doing the laboratory work, and were allowed 

 to count the two half courses without laboratory as the equivalent 

 of one half course. Several of the investigations, which were 

 chiefly on questions of heredity, will be presented for publication. 



The work by one of the students in these courses, together with 

 that carried on by students in Courses 10 and 11 in previous years 

 and by the instructor, has been published as one of the Contribu- 



