SKETCH OF HENRY CARVILL LEWIS. 403 



spent in this country, partly in visiting the places in the Southern 

 States where diamonds have been found, in continuance of his 

 investigations on the origin of that gem. He had read papers on 

 the subject at the meetings of the British Association in 1886 

 and 1887, and was planning to present his further results at the 

 next meeting of that body ; after which he hoped to carry on his 

 glacial studies in Norway and other parts of Europe. 



He sailed, with Mrs. Lewis, for Europe, on the 3d of July, 1888. 

 He was affected during the latter part of his voyage with symp- 

 toms of illness, which developed, after he reached Manchester, 

 England, into typhoid fever. From this he died on the 21st of 

 July. Prof. G. F. Wright, author of " The Ice Age in North 

 America " (New York, D. Appleton & Co., 1889), who was asso- 

 ciated with him in the investigation of the terminal glacial mo- 

 raine, has furnished the estimate which follows, of the general 

 value of his work. The more particularized review of his glacial 

 investigations with which this paper continues, has been fur- 

 nished us by Mr. Warren Upham, who was also the author of a 

 sketch of Lewis in the " American Geologist." 



"It is impossible," says Prof. Wright, "to overestimate the 

 value to the world of such a career as Lewis set before him, and 

 already at his early death had largely realized. His vigor of body 

 and mind, pleasing address, liberal education, high social position, 

 and abundant means, insured to him flattering success in almost 

 any direction. He could easily have attained eminence in the 

 politics of his State and nation. He could have entered upon a 

 business career with fair prospect of becoming a millionaire. Or 

 he could have settled down, as the majority of those thus situated 

 do, to the seductive pleasures of society, and have been one of its 

 chief ornaments. Instead of this, he threw all the resources of 

 his nature and of his position into the most laudable work of 

 enlarging the stock of the world's knowledge. 



" The leisure hours of his boyhood were spent in his laboratory 

 and in roaming over the hills in the vicinity of Philadelphia in 

 search of facts to explain their origin. After graduating from 

 the university, he offered himself as an assistant to the Geological 

 Survey of the State, and for one or two seasons accompanied the 

 surveyors in the dull routine of their work. He afterward was 

 commissioned to prosecute independently investigations into the 

 nature of the gravel deposits of the rivers entering the Atlantic 

 between New York and Norfolk, Va. It was with the results of 

 these youthful investigations that he came to the meeting of the 

 American Association for the Advancement of Science at Boston, 

 in 1880, with two or three papers which at once attracted the 

 attention both of that body and of the wider audience reached by 

 the printed reports. Lewis was specially delighted on that occa- 



