part 2] ANNIVERSARY ADDRESS OF THE PRESIDENT. lxv 



1923, was well known as a geologist and petroleum technologist. 

 At the time of his death he had been connected for nearly twenty 

 3 r ears with Viscount Cowdray's firm (Messrs. S. Pearson & Son), 

 and had been closely associated with them in their oil enterprises. 

 Before that he was on the staff of the Egyptian Geological Survey. 

 Mr. Stewart's death, at the age of forty-six, has cut short a 

 promising career, and his loss will be keenly felt, not only by his 

 friends but by all connected with the British petroleum-industry. 

 He had been a Fellow of this Society since 1904. 



Joseph William Winthrop Spencer was born at Dundas 

 (Ontario) in 1851, and graduated at McGill University in 1874. 

 His best work was in connexion with the Glacial Lakes : he proved 

 the differential elevation of the old shores of Lake Iroquois, to 

 which he gave its appropriate name. He published many papers 

 on that and other ancient lakes ; but his most important publica- 

 tion was on the Evolution of the Falls of Niagara (Geological 

 Survey of Canada, 1907), in which he summarized the results of 

 his Pleistocene work, and made a time-table for the recession of 

 the Niagara Falls from the escarpment of Queenston. This was 

 the first approximately accurate estimate of the age of the Falls 

 and of the length of time which had elapsed since the ice had left 

 the Great Lakes region. He traced some river-channels, such as 

 that of the St. Lawrence, by means of soundings on the charts to 

 the edge of the continental shelf, thus proving , the former eleva- 

 tion of the American continent. Dr. Spencer was for a few years 

 State Geologist of Georgia, and was one of the earlier Fellows of 

 the Geological Society of America. He became a Fellow of our 

 own Society in 1877. [A. P. C] 



Thomas William Eeader was born on March 12th, 1860, and 

 died on January 29th, 1923. As an enthusiastic and skilful 

 photographer, he rendered valuable service to Geological Science. 

 More than a hundred of his photographs are published in the 

 Proceedings of the Geologists' Association, and it was primarily in 

 recognition of his ability in the important ancillary science of 

 photography — an ability which he generously used in helping 

 others — that the Geologists' Association selected him to be the 

 first recipient of the Foulerton Award, in 1920. For several years 

 Mr. Reader was Librarian of the Essex Field-Club, and took a 

 prominent part in arranging the geological collections at the Essex 



VOL. lxxix. e 



