22 ANNUAL REPORT OF THE 



and Messrs. R. E. Dodge, J. B. Woodworth, J. H. Sears, and F. 

 M. Lowe. Purchases of material include sixty species of fossils 

 from the coal measures of Peoria, 111., mostly Invertebrates ; a 

 number of well preserved Trilobites and Brachiopods, showing 

 spires, hinge structure, muscular impressions, etc. 



The most pressing needs of the palaeontological collections in 

 use by the instructors are well preserved fossils showing structu- 

 ral details, and microscopic sections of fossils exhibiting minute 

 structure. Additional cases are needed for storage. Several 

 palasontological reports of State surveys, constantly in demand 

 in the laboratory, could with advantage be added to the working 

 library. 



Dr. Jackson spent a considerable share of his time working in 

 the palgeontological department of the Museum of Comparative 

 Zoology. During his sickness, in the autumn and early winter, he 

 was replaced by Dr. C. R. Eastman, who resigned a fellowship at 

 Yale in order to assist the department at this time of need ; for 

 the remainder of the year Dr. Eastman was occupied on collec- 

 tions of fossil Vertebrates in the Museum. 



During the past year, Mr. J. B. Woodworth was in charge of 

 the second course in General Geology (Geol. 8) and of the course 

 in Glacial Geology (Geol. 16). Owing to the destruction of sev- 

 eral of the most instructive geological exposures in the immediate 

 vicinity of the University by the advance of quarrying and grad- 

 ing, it has been necessary to visit more distant points in the ex- 

 cursions of Course 8. The Carboniferous rocks of the Norfolk 

 County Basin, at Pondville and Canton Junction, were selected 

 for new teaching localities. During the April recess, a voluntary 

 excursion — allowed to count as the equivalent of four spring 

 half-day excursions — was made to the Cambrian and Carbon- 

 iferous rocks near Attleborough, Mass. 



Course 16, Glacial Geology, was given to four students for the 

 first time this year. It was devoted mainly to a study and exposi- 

 tion of the glacial deposits as they exist in this country, with par- 

 ticular reference to training students in the discrimination and 

 description of these deposits, and of attendant glacial phenomena 

 in the field. The University is favorably located for this kind of 

 investigation, and with the recent advances made in the interpre- 

 tation of the stratified drift deposits, almost every square mile in 

 Eastern Massachusetts affords opportunity for instruction. One 



