98 PROCEEDINGS OF THE BOSTON MEETING 



vember 18, while crossing the bar at the mouth of the Mulatas Elver, 

 Colombia. Dr. Kogers had not quite completed his first full year as 

 Fellow and his loss lessens the membership by one who had already 

 accomplished much and who gave promise of increasingly important 

 contributions to geology, as greater and greater maturity and experience 

 were attained. 



Dr. Eogers was born in ISTew York City, March 21, 1889, and was 

 thus in his thirty-first year. He was the son of the late Benjamin 

 Tappan and Charlotte Kennedy Eogers, and was a lineal descendant of 

 the Eev. Nathaniel Eogers, who settled in Ipswich, Massachusetts, in 

 1636, and of John Eogers, president of Harvard College in 1684. Sher- 

 burne Eogers, as he was known to his friends, was prepared for college 

 in the Trinity School, New York City, and while yet a school-boy in- 

 formed the writer of his desire and ambition to become a geologist. He 

 was therefore personally advised and guided during his course in Colum- 

 bia College (A. B., 1908), and as a graduate student later on in Colum- 

 bia University (A. M., 1909; Ph. D., 1911). He was a high-rank man 

 in college and was elected to Phi Beta Kappa. The same qualities se- 

 cured for him the Sigma Xi key while a graduate student. He was 

 assistant in the Department of Mineralogy during his graduate studios. 

 In these years also he began his contributions to the literature of the 

 science, as the bibliography below will show. His paper on the bedrock 

 or partly inferential bedrock bottom of the Hudson Eiver opposite New 

 York adds in permanent form the conclusions of the geologist to the 

 records obtained by the engineers. His dissertation for his doctorate was 

 a careful study of the petrographical and chemical relationships of the 

 complex Cortlandt series of intrusive rocks on the Hudson. The corun- 

 dum deposits associated with them were shown to be due to inclusions of 

 mica schist. On receiving his degree and passing with a high record 

 the civil service examinations, Sherburne Eogers was appointed to the 

 United States Geological Survey and remained in its service up to his 

 untimely death. He worked on coal areas in eastern Montana, in his 

 early field-work, but was not content with areal mapping. His active 

 mind was pondering the source of the shales, and as a result we have 

 the paper on the petrology of the associated sediments in the Journal of 

 Geology in 1913. The paper forms one of the early contributions to the 

 microscopic study and interpretation of the sediments, now a subject of 

 such prominent interest. Later on Dr. Eogers was assigned to special 

 problems in oil geology, such as the waters of the California oil fields. 



