8 ANNUAL REPORT OF THE 



Aside from ordinary revision, the lectures in Zoology 1 were 

 the same as those given in 1901-02; but a change was made in 

 the laboratory exercises by devoting half an hour at the beginning 

 of each three-hour period to a quiz on the subject matter of the 

 exercise and a brief exposition of the work about to be entered 

 upon. Professor Parker had as Chief Assistant in this course in 

 Harvard College Mr. Grant Smith, and as Sub-Assistants, Messrs. 

 A. D. Howard, C. W. Halm, and A. P. Larrabee. The Assistant 

 in the course to Radcliffe students was Mr. J. A. Long. 



In Zoology 2, given by Dr. Castle, the third optional hour for 

 lectures was used for about half of the time. Two changes were 

 made in the laboratory work : for the study of the clam was sub- 

 stituted with noticeable advantage that of the squid, and the study 

 of vertebrate anatomy, hitherto pursued on the frog alone, was 

 supplemented by the examination and drawing of typical cross 

 sections of Amblystoma. It is proposed to add next year the same 

 treatment of Amphioxus. A study of the metamorphosis of the 

 frog was omitted this year. A voluntary excursion to the sea- 

 shore was participated in by about one-third of the class. The 

 Chief Assistant was Mr. A. W. Peters ; the Sub-Assistants, Messrs. 

 F. TV\ Carpenter and A. P. Larrabee. 



Dr. Rand largely revised his lectures in Zoology 3, but the 

 laboratory work was not much modified from that of the preced- 

 ing year. With the assistance of the Department Preparator, 

 Mr. M. Reitz, a beginning has been made in preparing skeletons of 

 some of the Vertebrates studied, so that each student may have a 

 set for study without the loss of time involved in making his own 

 preparations. It is proposed to increase this collection till it fully 

 meets the needs of the whole class. The Harvard College Assist- 

 ant was Mr. F. W. Carpenter; the Radcliffe College Assistant, 

 Mr. J. A. Long. 



The laboratory w r ork in Zoology 4 was supervised by Dr. Rand, 

 and was as usual on the leech Glossiphonia. There were a few 

 lectures by Dr. Rand on the anatomy and histology of this animal; 

 the remaining lectures were on technique, including bibliographic 

 methods ; but owing to want of time methods of reconstruction 

 were omitted. 



In Zoology 5 the laboratory work was on the development of 

 the chick during the first four days of incubation, and was con- 

 ducted by Dr. Rand. The lectures, by Professor Mark, covered 

 about the same ground as in previous years. 



