8 
Seniors, 34 Juniors, 25 Sophomores, 2 Freshmen, 2 Unmatricu- 
lated, and 2 Scientific Students. 
In Dr. Mark’s course on Embryology, the lectures were at- 
tended by three fourth-year students of the Lawrence Scientific 
School. ‘The laboratory work was pursued by the three students 
attending the lectures, and by another who had previously at- 
tended the same course. The work consisted largely in the 
investigation of special topics proposed by the instructor at the 
beginning of the year. 
These studies have resulted in the production of the following 
papers : — 
1. On the Development of QMicanthus niveus, and its Para- 
site, Teleas. By Howard Ayers. Mem. Bost. Soc. Nat. Hist., 
Vole iil Ne: 8: 
2. On the Development of the Posterior Fissure of the Spinal 
Cord, and the Reduction of the Central Canal, in the Pig. By 
William Barnes. 
3. Notes on the Development of Phryganide. By William 
Patten. 
4. The Relation of the External Meatus, Tympanum, and 
Kustachian Tube to the First Visceral Cleft. By Albert H. 
Tuttle, of Boston. 
The papers of Messrs. Barnes and Tuttle are in press in the 
Proceedings of the American Academy of Arts and Sciences. 
Professor Shaler and Mr. W. M. Davis gave the usual courses, 
as follows : — 
In Physical Geography, attended by sixty students. (Mr. 
Davis.) 
In Elementary Geology, with field-work, attended by one 
hundred and eighty-five students. (Prof. Shaler and Mr. 
Davis. ) 
A course in Advanced Geology, with field work, attended by 
twenty-five students. (Prof. Shaler and Mr. Davis.) 
A course in Paleontology, attended by seven persons. (Prof. 
Shaler.) 
Professor Whitney lectured twice a week on Applied Geology, 
throughout the year. He was assisted in this course by Dr. 
Wadsworth, who also gave a course of lectures on Advanced 
Lithology, and took charge of the instruction of a small class of 
special students in Microscopic Lithology. 
