67 



work of his life, the Essay which received the prize from the 

 American Medical Association. His two former prizes were 

 competed for only by his fellow students ; but the third, it is no 

 small praise to say, was open to the compethion of the whole 

 medical profession throughout the country. 



While yet a medical student he became an active member of 

 the Boston Society of Natural History, and was soon after elected 

 Curator of Entomology. In 1851 hej was elected a member 

 of the American Academy of Arts and Sciences — one of the 

 youngest members ever admitted into that body. His communi- 

 cations to different scientific bodies and journals were very nu- 

 merous and on a great variety of subjects, and give such evi- 

 dence of industry and enthusiasm as cannot fail to excite our 

 wonder and admiration. They are too numerous for analysis or 

 even enumeration in this place ; but some of the more important 

 ones are found under the following list of subjects, which com- 

 prises those of about one third of the whole number of his me- 

 moirs and communications, and which serves to show that his 

 mind was interested in a great variety of questions, and that 

 whenever an opportunity for investigation presented itself, he was 

 always ready with a cheerful heart and patient industry to enter 

 upon his work.* 



" On the Hybernation of Insects, and its Relation to their 

 Met amor pho sis y 



*' An Account of certain microscopic animals found in a per- 

 son who died of an enlarged spleen^ 



" On the external parasites of warm-Hooded animals,'*'' This 

 was a subject to which he had devoted much attention, and in 

 illustration of which he had made large collections of specimens 

 preserved for microscopic study. 



" On the Emlryology of the Articulata,^'' including remarks on 

 the alternation of generations in the Humble-Bee, (Bombus 



* His various scientific papers or abstracts of them may be found in the Pro- 

 ceedings^ also in the Journal of the Boston Society of Natural History. In the Pro- 

 ceedings of the Boston Society for Medical Improvement, in the Proceedings and in 

 the Memoirs of the American Academy of Arts and Sciences, in the American 

 Journal of Science, in the Transactions of the American Medical Association for 

 1853, in the Boston Medical and Surgical Jounwd, and in the American Journal of 

 Medical Science. 



