TITLES AXD ABSTRACTS OF PAPERS 83 



WAR WORK BY THE DEPARTMENT OF GEOLOGY AT THE UNIVERSITY OF 



OREGON 



BY WARREN D. SMITH 



{Abstract) 



At Oregon we have a general situation probably without a parallel in other 

 State universities of the country, namely, a State university without a school 

 of engineering. Fortunately for the department of geology, one of its members 

 had had some experience in geographical and military map-making and read- 

 ing, and a class of sixty-five volunteer students in this subject was enrolled 

 before war was declared by the United States. Since the declaration of war 

 by America more than one thousand men have received this training. 



The second activity was in the line of geography. A year's course in eco- 

 nomic geography had been given for three years previously to our entrance 

 into the war, and the central theme of this had been the geography of Europe. 

 Geography had a few years before been dropped from the university cur- 

 riculum. 



The third and perhaps the most interesting phase of the work was the 

 prospectors' class in war minerals, held in the evening hours once a week dur- 

 ing the spring of 1918. As the United States swung more and more earnestly 

 into the war the department began to give the young men (such as came under 

 its instruction) planning to go to officers' training schools more and more ap- 

 plications of geology to military operations. And yet another field was entered 

 to a limited extent, which might have been more fruitful had time and energy 

 permitted, namely, the extension field. Several outside lectures, including one 

 at Fort Stevens, at the mouth of the Columbia, on the geography of the west- 

 ern theater, were undertaken. 



Read by title in the absence of the author. 



At 12.30 o'clock p. m. the session adjourned for noon recess and 

 luncheon, and reconvened at 2.10 o'clock p. m. to continue the reading 

 of papers. 



Afternoon Session, Friday, December 27, 1918 



titles and abstracts of papers presented before the afternoon 

 session and discussions thereon 



recent earthquakes of porto rico 



BY HARRY FIELDING REID AND STEPHEN TABER 



{Abstract) 



A series of earthquakes lasting about a month were felt in Porto Rico and 

 adjoining islands, beginning at 10.14 a. m. October 11, 1918. The origin of the 

 shocks was submarine, a few miles off the northwest corner of Porto Rico. 

 The first shock occurred without warning and was very severe, causing great 

 destruction of buildings in the northwestern part of the island, and some 

 minor damage, even as far as its eastern end. This was followed by many 



