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sections of from fifteen to twent}^ students, under the charge of 

 Mr. R. E. Dodge, Assistant in the Department. They are in 

 effect recitations, and they have clearly served to secure ends 

 which experience shows are unattainable by a lecture system 

 alone, however fully that method may be supplemented by fre- 

 quent examinations. 



In the course of Advanced Geology (Geol. 8), Mr. J. B. Wood- 

 worth has done a task similar to that effected by Mr. Dodge in 

 the elementary course; but in addition to holding special meet- 

 ings in small sections for recitation and review, he has supervised 

 the preparation of theses which the members of the class are re- 

 quired to write, and he has also aided Professor Wolff in the 

 field instruction. 



Early in the year, Dr. R. T. Jackson was employed to take 

 charge of the laboratory work in the first course in Palaeontology 

 (Geol. 14), and of the considerable collection which has grad- 

 ually been provided for the use of that class. By his aid, the 

 detailed instruction which is intended to supplement the lectures 

 and book-work has been at length brought to a satisfactory state. 

 The collection has been increased by the purchase of specimens 

 needed to extend the series of fossils which are of the most im- 

 portance for the use of students, and which could not be spared 

 from the general collections of the Museum. Dr. Jackson has 

 also rendered assistance to the student in Historical Geology 

 (Geol. 15) and Palaeontological Research (Geol. 24). 



The large magic lanterns placed in the Geological Lecture- 

 room have been used throughout the year in the elementary 

 courses (Geol. 4 and 5) with profit and success. Five cases, 

 accommodating ninety-six trays, have been placed in Room 2, 

 for the use of the Palseontological Assistant, and several volumes 

 needed for laboratory work have been added to the library in the 

 same room. 



A number of specimens illustrating geological phenomena 

 have been added to the teaching collection in the Geological 

 Laboratory. Among the most important is a second block from 

 Kelly's Island in Lake Erie, showing glacial fluting and striation, 

 given by Benjamin Cook, Esq. A portion of a mastodon's jaw, 

 with several teeth attached, from the Pleistocene deposits of 

 Iowa, was presented by Mr. John A. Mott. 



The collection of photographs and lantern views has been 



