MUSEUM OF COMPARATIVE ZOOLOGY. 15 



REPORT OF THE STURGIS HOOPER PROFESSOR OF 



GEOLOGY. 



By Reginald A. Daly. 



On assuming his duties on September 1, 1912, the writer was 

 engaged on two pieces of work which were begun during his term 

 of office at the Massachusetts Institute of Technology as Professor 

 of Physical Geology. The autumn months were partly occupied 

 with the proof-reading of a final report on the Geology of the 

 North American Cordillera at the Forty-ninth parallel of latitude, 

 in two volumes with a portfolio of maps and plates. The work 

 on this subject was begun in 1901 under the Canadian Commis- 

 sioner of International Boundary Surveys, but the final report 

 was largely written at the Institute of Technology. The writer's 

 sincere thanks are due to the Institute's Corporation for their 

 generosity in providing all available facilities for this work and 

 to several members of the Institute's Faculty for stimulus and sug- 

 gestion freely given in the years occupied with the writing. 



The second investigation noted is a study of the Canadian Cor- 

 dillera along the line of the Canadian Pacific railway. Begun 

 in 1911, the field work was finished in September, 1912. During 

 the winter a preliminary report of the 1912 season was sent to 

 press and a fuller account of the Cordilleran geology in this section 

 was prepared for the guide book of the International Geological 

 Congress. The writer, as delegate of the University and of the 

 Museum, attended the Congress at Toronto, August, 1912, and 

 took part in four of the official excursions, acting as guide for the 

 Congress party traversing the Selkirk and Columbia ranges and 

 the Interior Plateaus, British Columbia. 



Most of the year was occupied with the writing of a book on 

 Igneous rocks and their origin; the manuscript, with 205 text 

 figures and 2 plates, was sent to the publisher in July. 



Owing to the kindness of Prof. E. L. Mark, the writer was 

 enabled to study the core of a 1280-foot boring in Bermuda. 

 It was found that the Recent and Tertiary limestones of that island 

 rest on a basaltic volcano, the lava of which is remarkably fer- 



