MUSEUM OF COMPARATIVE ZOOLOGY. 



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entering upon geological research work in the University, and 

 Geology 226, intended for more experienced men. The work of 

 the first course was closely supervised by Mr. Jaggar, and the 

 students were individually given much time in the field and 

 laboratory by the instructor. In the fall they were offered a 

 series of seven general excursions conducted by the officers of the 

 department to various carefully studied localities in New England, 

 so that by note-taking, collateral reading, and conferences each 

 student attained at the outset a somewhat varied field experience 

 as a basis for original work. During the winter months a short 

 course of lectures was given by Mr. Jaggar on the experimen- 

 tal or synthetic method of interpreting geological processes, and 

 this was supplemented by regular laboratory work in devising, 

 constructing, and applying special apparatus for the solution of 

 problems in dynamical geology. During the spring season the 

 northwestern part of the Boston basin was carefully studied in 

 three sections, especially with a view to discovering the source of 

 the remarkable series of fragments included in the younger erup- 

 tive rocks which cut the Somerville slate ; the adjacent crystalline 

 rocks of Belmont, Arlington, and Med ford were found to contain 

 many types identical with these inclusions, and the results of this 

 investigation will be published in the near future. 



In course 226, Mr. J. E. Woodman prepared, under the super- 

 vision of Professor Shaler, a report " On the Geologic Forces and 

 Forms of the North Jersey Coast," based upon field work done 

 during the previous summer. 



Following the plan carried out by Mr. Ward in Meteorology, 

 Mr. Jaggar, at the request of Mr. W. A. Baldwin, Superintendent 

 of Schools in Belmont and Danvers, gave a course of lectures to a 

 class of fifteen teachers in Danvers, Mass., on " Physiographic 

 Types, as illustrated in Southern New England." At the close of 

 the season an extended excursion was made with the class in 

 Essex County, where examples of many typical geographical forms 

 were seen and studied in the field. 



Mr. Jaggar has devoted much time to the construction and 

 arrangement of special pieces of apparatus, with the view of estab- 

 lishing a Laboratory of Experimental Geology. Two basement 

 rooms in the Museum have served well for this purpose, being 

 immediately associated with the motor, dynamo, petrographical 

 workshop, and photographic room. 



