MUSEUM OF COMPARATIVE ZOOLOGY. 9 



Dr. R. T. Jackson reports that the collections used in teaching 

 Palaeontology are in good condition. Two additional cases for 

 holding teaching collections were built. A fine series of Cam- 

 brian fossils from St. John, New Brunswick, was purchased of 

 Mr. G. F. Matthew. 



Mr. J. B. Woodworth reports as follows upon the instruction in 

 General Geology : — 



The instruction given by me this year included Courses 5, 8, 

 and 16, and the supervision of the studies of certain students in 

 Courses 22 a and 22 5, and of instruction given in Radcliffe 

 College. 



Coarse 5, Elementary Field and Laboratory Geology, was given 

 in the second half year. It was attended by ninety-three students. 

 The field work was conducted under the immediate charge of Mr. 

 Woodman, who also acted as Assistant in the Laboratory. Mr. C. 

 H. White was also assigned to this course as an Assistant in the 

 Laboratory and the field. I wish to make especial mention of 

 the services of Mr. H. T. Burr, and Ernest Haycock, both 

 of whom gave voluntary assistance in the laboratory teach- 

 ing, and in the field. These students placed themselves under 

 the direction of the instructor in the course, with the view of 

 obtaining experience in teaching. The experiment, as tried this 

 year, was satisfactory to both parties. It is obviously an advan- 

 tage to advanced students and to the Department for one of its 

 officers to have a knowledge of the capacity to teach on the part 

 of prospective applicants for positions in other institutions. 



Course 8, General Critical Geology, was taken by sixteen men. 

 In addition to the usual field and library work, some additional 

 pains was taken to instruct students in the use of geological maps 

 and reports, a work which was supervised by Mr. Woodman in 

 the Library of the Museum. As in previous years, the attempt 

 was made to make the field excursions illustrative of phenomena 

 discussed theoretically in the Lecture Room, and at the same time 

 to give the student training in the observation and interpretation 

 of rocks and rock structures. The following localities were 

 visited. In the autumn : (1) the Medford diabase dike ; (2) the 

 Mystic River quarries ; (3) the westward extension of the Somer- 

 ville quarries ; (4) the Auburndale esker, and the Woodland sand- 

 plain, a study of glacial deposits. In the spring : (1) a basal 



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