MUSEUM OF COMPARATIVE ZOOLOGY. 15 



specimens in the laboratory collections. Mr. Y. G. Bergen donated 

 a number of volcanic rocks and minerals collected by him in the 

 district about Naples, Italy. 



The heirs of the late Dr. C. T. Jackson presented Professor 

 Woodworth with several instruments, geological models, and 

 charts, once used by that well-known geologist. Most of these 

 materials have been given to the Division of Geology, or deposited 

 for its use. 



Professor Woodworth was granted a leave of absence by the 

 Acting President of the University in February to attend the 

 Richmond, Va., meeting of the American Institute of Mining 

 Engineers as a representative of the U. S. Geological Survey. He 

 has continued to act during the year as an assistant of the N. Y. 

 State Museum, engaged in an investigation of the Pleistocene 

 geology of the Hudson and Champlain Valleys. Reports on this 

 work have been prepared for publication. A special report on the 

 Triassic coal areas of the Atlantic slope was also prepared for the 

 U. S. Geological Survey, and an article on the geological condi- 

 tions of mining in the Richmond area was prepared at the request 

 of the Director of the U. S. Geological Survey for the American 

 Institute of Mining Engineers. 



Mr. Woodman continued during the year his work upon a 

 report on the geology of parts of Nova Scotia. With Professor 

 Shaler, he also gave an elementary course in geology in the Summer 

 School, which was attended by 12 students. Mr. Boynton en- 

 gaged during the summer vacation in mining exploration in the 

 region north of Lake Superior. 



Course 22, advanced geological field work, under Dr. T. A. 

 Jaggar, doubled its attendance from five students in 1899-1900 

 to ten in 1900-01. The work accomplished by the class was an 

 accurate geological map of the Middlesex Fells, made on a large 

 scale topographical base of the Metropolitan Park Commission. 

 The same plan was followed as in 1899-1900, the students map- 

 ping an area in the fall and investigating a topic in the spring. It 

 was found advantageous to have them work in the field in pairs. 

 The work of this class is now definitely organized for eventual 

 publication by the United States Geological Survey. An appropri- 

 ation for compiling the work has been made, and the preparation 

 of a geological folio comprising the Boston and Boston Bay quad- 

 rangles assigned to Dr. Jaggar by the Director of the Survey. 



