34 ANNUAL REPORT OF THE 



lian Brains by Means of Formol and Alcohol, which will appear 

 in the " Anatomischer Anzeiger." 



The demand for instruction in microscopical technique exceeded 

 the accommodations of the room devoted to that work, so that it 

 was with considerable inconvenience that places — some of which 

 were unsuitable — were provided for most of the applicants for 

 Zoology 4. In this course Dr. W. McM. Woodworth, as usual, had 

 charge of the laboratory work and gave part of the lectures. 



Zoology 5 was elected by all the students who took Zoology 4, 

 except in the case of a Graduate student in Botany. Dr. Wood- 

 worth conducted the laboratory work in this course also. His 

 duties were considerably greater than in previous years, owing to 

 the increased size of these two classes. 



In Zoology 6, by Dr. Davenport, there were four constant at- 

 tendants upon the lectures, who were not regularly enrolled, and 

 who undertook no laboratory work. In connection with this course 

 the following paper, among others, was prepared: On Acclimatiza- 

 tion of Organisms to Poisonous Chemical Substances. By C. B. 

 Davenport and H. V. Neal. 



It is intended to divide the subject matter of this course in the 

 future, so that those problems of Morphogenesis which relate to 

 the development of the individual (Ontogenetic Part) and those 

 which relate to the evolution of the race (Phylogenetic Part) shall 

 be treated of in alternate years. This will allow a more thorough 

 and exhaustive treatment of the whole field, and will be equivalent 

 to offering to advanced students an additional course. 



Zoology 7 consisted in a course of lectures by Dr. Parker, given 

 in the first half-year, as previously, and covering the same ground. 

 It is proposed in this course, also, to divide the subject so that in 

 alternate years the lectures will be different. These will consist 

 of a general introduction to the study of the nervous system, 

 followed by a fuller treatment of one or more of its main di- 

 visions. In the introductory lectures the following topics will be 

 presented : — 



(1) Methods for the study of the nervous system. 



(2) General structure and functions of the nervous system. 



(3) Types of sense organs and the origin of afferent impulses. 



(4) Central organs and the transmission and translation of impulses. 



(5) Terminal organs of efferent nerves : muscles, luminous organs, 

 glands, etc. 



