10 ANNUAL REPORT OF THE 



REPORT ON THE ZOOLOGICAL LABORATORY. 



By E. L. Mark. 



The instruction in zoology was altered rather fundamentally 

 in the year 1912-1913. Zoology 2 was established several years 

 ago as a part of a course in Biology, — then designated Natural 

 History 5, — and was intended to give students seriously interested 

 in biological subjects an opportunity to get substantial and accu- 

 rate knowledge of the morphology of all the chief types of animals 

 by means of dissections. Much stress was laid upon laboratory 

 work, though not to the exclusion of formal lectures intended to 

 supplement and correlate the information got in the laboratory. 

 Originally the work was inseparable from a correspondingly 

 organized course in botany. The rule that students to count 

 either the botanical or zoological part of the course must take both, 

 was relaxed. It has now been decided to give up Zoology 2, and 

 to incorporate so much of it as is possible in Zoology 1, a course 

 hitherto given to large numbers of students desiring a general- 

 survey course in the subject. 



A further reduction in the formal instruction offered primarily 

 for undergraduates was effected by reducing the time given to the 

 Comparative Anatomy of Vertebrates (Zoology 3) from a full 

 course to a half course. 



The title of Zoology 4 was changed from Microscopical Anatomy 

 to General Histology, thus expressing a change in the content of 

 the course, which was described in the Report for 1911-1912. 



A new course, taking the number of the abandoned Zoology 2, 

 Genetics and Eugenics, was given by Professor Castle and was 

 made accessible to students who had had any elementary course 

 in biology (zoology, botany, or physiology). 



Aside from the changes noted above, the courses in Zoology 

 were substantially the same as those offered in previous years. 



The enrollment in courses is given below, as usual, in tabular 

 form. Table I gives the statistics for students in Harvard Uni- 

 versity, Table II for those in Radcliffe College. 



