14 ANNUAL REPORT OF THE 



REPORT OF THE STURGIS HOOPER PROFESSOR OF 



GEOLOGY. 



By Reginald A. Daly. 



In addition to his duties as a Museum officer, the writer has 

 continued to act as chairman of the Department of Geology and 

 Geography, and to give instruction. During the year he con- 

 ducted the following courses : — Geology 4, Geology 9, and Geology 

 20c. Three students enrolled in Course 20c completed theses 

 for the doctor's degree. Their titles are: — The Acadian Triassic 

 by Sidney Powers; The Glamorgan Gabbro body and its associ- 

 ated rocks [Ontario] by Wilbur G. Foye; and The geology of the 

 Walker Mountain overthrust block in Southwestern Virginia 

 by Ellis W. Shuler. Mr. Shuler's work was supervised more 

 especially by Professors Wood worth and Raymond. 



In the autumn the proof-reading of a volume on the geology 

 along the Canadian Pacific Railway between Golden and Kam- 

 loops (a distance of 200 miles) was completed; the book has since 

 been issued as a memoir of the Geological Survey of Canada. 

 Manuscripts describing the results of three new researches were 

 prepared for publication. One of these relates to the origin 

 of the iron ore at Kiruna, Sweden, where the required field work 

 was done in 1914. A rather full statement of The glacial-control 

 theory of coral reefs was written. Much of the year was spent 

 on a compilation of existing geographical and geological data on 

 the Pacific islands. Special care was taken to secure all available 

 information as to the islands showing "continental" rock types, 

 and as to the detailed petrography of the volcanic islands. The 

 results, prepared in tabular form, are completed. Some of the 

 material collected was used in writing an address given on August 

 3rd at a general meeting of the American Association for the 

 Advancement of Science at San Francisco, the subject being 

 Problems of the Pacific Islands. The paper, part or all of which 

 will be published, presents a plan for the systematic exploration 

 of all the oceanic islands of the Pacific. 



