10 ANNUAL REPORT OF THE 



Nine students were engaged in research (Zoology 20a) under 

 the supervision of Professor Mark. Three of these have com- 

 pleted papers which are ready for publication. Two students in 

 Kadcliffe College also carried on researches under direction of 

 Professor Mark, and a third, who was not enrolled, was assisted 

 during a part of the year in some researches in cytology. 



In future the duty of supervising the researches of advanced 

 students will not fall wholly on the Director of the Laboratory, 

 but will be shared by all the Faculty members of the department. 



Mr. H. Crawley, though not a student in the department during 

 the year, has published in the Proceedings of the Academy of Nat- 

 ural Sciences of Philadelphia a paper on u The Progressive Move- 

 ments of Gregarines," the work on which was begun here during 

 the year 1900-01. Mr. A. W. Peters has made good progress with 

 his work on the metabolism of Infusoria. The final paper on 

 Reissner's fibre by Mr. P. E. Sargent is nearly ready for publica- 

 tion. Mr. C. H. Lander has finished a study of the anatomy and 

 histology of Hcmiurus crenatus. Other papers were completed 

 by candidates for the Doctor's degree. 



During the current year Dr. Rand has published No. 126 of the 

 Contributions from this Laboratory, and also numerous abstracts 

 and reviews in the u American Naturalist." Professor Parker 

 had the editorial management of the "American Naturalist" 

 during the absence of Dr. W. McM. \Yood\vorth, from November 

 till March, and besides contributing reviews to that journal and to 

 "Science," has published No. 133 of the Contributions from this 

 Laboratory and also the results of work carried on for the U. S. 

 Fish Commission : " The Reactions of Copepods to Various Stim- 

 uli and the Bearing of this on Daily Depth Migrations," in Bull. 

 U. S. Fish Coram. 1901, pp. 103-123. 



In June, 1902, the degree of Doctor of Philosophy was conferred 

 upon two candidates in Zoology, Mr. Robert Stanley Breed, whose 

 thesis was on u The Changes which occur in the Muscles of a 

 Beetle (Thymalus marginicollis Chevr.) during Metamorphosis " ; 

 and Mr. William Martin Smallwood, whose thesis was entitled 

 u The Maturation, Fertilization, and Early Cleavage of Bulla 

 solitaria." 



Dr. Breed has been appointed Professor of Biology and Geology 

 in Allegheny College, Meadville, Pa., and Dr. Smallwood has re- 

 ceived an appointment as Assistant Professor of Zoology in the 

 University of Syracuse. 



