1897.] NATURAL SCIENCES OF PHILADELPHIA. 517 



married, he was not distracted by domestic ties from his favorite 

 occupation, and for social engagements he cared but little. Art 

 and literature were to him outside issues, very well in their way, but 

 to be left to the cultivation of others. As a contributor to know- 

 ledge, his function was well-defined, and recognition of his success 

 as an entomologist was valued by him the more because of the sin- 

 gleness of his interest. 



It is gratifying to know that such recognition was conveyed to him 

 in abundant measure by those who knew of the enduriugly accurate 

 character of his work. He was one of the twelve honorary members 

 of the Entomological Society of Belgium, one of the sixteen honor- 

 ary members of the Entomological Union of Stettin, and one of the 

 eleven honorary members of the Entomological Society of Fiance. 

 He was an active member of the Russian Entomological Society, 

 Correspondent of the Boston Society of Natural History, the Bio- 

 logical Society of Washington, the Kansas Academy of Sciences, 

 and the Zoologico-Botanical Society of Vienna. He was also a 

 member of the College of Physicians of Philadelphia, the Entomolo- 

 gical Societies of New York, Washington and Newark, and honor- 

 ary member of the Feldman Collecting Social. He was Librarian 

 and one of the Secretaries of the American Philosophical Society at 

 the time of his death. 



On the death of his valued friend, Dr. John L. LeConte, he was 

 elected President of the American Entomological Society, a position 

 which he held continuously until his death, combining with it the 

 Directorship of the Entomological Section of the Academy. 



He received the title of Professor of Entomology from the Uni- 

 versity of Pennsylvania. The position, it is believed, was entirely 

 honorary, no active duties being attached to it. 



As might be supposed from the strictly defined limits of his field 

 of scientific investigation, his work was more in connection with the 

 American Entomological Society than with the Academy, although 

 his interest in the latter was unflagging. He was elected a member 

 July 31, 1866, on his return from the west. He served as Corre- 

 sponding Secretary from 1876 to 1890. He was a member of the 

 Council from February 23, 1875 to December 26, 1876. He was 

 again elected in December, 1891, and held the position at the time 

 of his death. He also served on the Finance Committee for 1893, 

 and on the Publication Committee from 1875 to 1890, and from 

 1893 to the end. The duties of these several positions were per- 

 formed by him with fidelity and discretion. 



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