Vol. 69.] ANNIVERSARY ADDRESS OF THE PRESIDENT. lxfil 



and Physical Geography at Cornell University, and Professor of 

 the same subjects there in 1896, occupying the chair of Physical 

 Geography up to the time of his death. As an inspiring and 

 sympathetic teacher, his influence upon his students was great, 

 and has been acknowledged by them in many touching tributes to 

 his memory. He was the author of some excellent textbooks of 

 physical geography, geology, and economic geology, which have had 

 wide circulation in this country as well as iu America. 



In 1896 Tarr had charge of the Cornell Expedition to Greenland,, 

 and wrote a series of illuminating papers on the glacial phenomena 

 of the district visited. 



In 1905-1906 he undertook researches in Alaska, in collaboration 

 with his brother-in-law (Prof. L. Martin) and other assistants, for 

 the United States Geological Survey, summarizing the results in 

 1909 in a monograph on the physiography and glacial geology of the 

 Yakutat-Bay region, which is well known as a mine of information 

 for all interested in glacial geology. Returning with Prof. Martin 

 to the same district in 1909 and 1911, under the auspices of the 

 National Geographic Society, to study the startling changes in pro- 

 gress in many of the Alaskan glaciers, he again proved his high 

 capacity as observer and explorer, and his journey to Spitsbergen 

 with the International Geological Congress party in 1910 gave him 

 further experience of glacial phenomena. His vivid description of 

 the spasmodic advances in many of the Alaskan glaciers, which he 

 attributed to the after-effects of the big earthquake that shook the 

 region in 1899, raised new problems in the physics of ice. These 

 problems he set himself to solve, and had begun a series of experi- 

 ments on the properties of ice, which were actively prosecuted up 

 to his last days, and of which the first fruits were published shortly 

 before his death. A fine monograph by Tarr & Martin on the 

 physiographical results of the 1899 earthquake in the Yakutat-Bay 

 region was published posthumously by the United States Geological 

 Survey last year. 



Cut down in the midst of his work and in the plenitude of his 

 powers, Tarr had already done much and had planned to do more. 

 The loss to science is heavy, and to his personal friends irreparable. 

 He was married in 1892, and leaves a widow and two children. 



[G. W. L.] 



By the death of Ramsay Heatley Traqeair the Society has 

 lost one of its most distinguished Fellows and one of the prominent 

 leaders in fossil ichthyology. Born at the Manse, Rhynd (Perth- 



