EDWARD A. KLAGES. 361 



The •Entoiuological Writings of John Hamilton, M. D.,* 

 with an Index to the New Coleoptera Described and 

 Nanied,t and an Account of the Disposition made of 

 his Collection and Entomological Library. 



BY EDWARD A. KLAGES. 



In 1905 there was published, at the personal expense of 

 its author, a very small edition of a paper entitled " Dupli- 

 cates of Papers on Coleoptera, published mostly in the Cana- 

 dian Entomologist," by John Hamilton, M. D. Its contents 

 can be better understood from its three sub-titles, namely : 

 " Index to Papers Published in the Canadian Entomologist, 

 Entomological News and Entomologica Americana " by John 

 Hamilton, M. D., Allegheny, Pa. " Index to Notes not in 

 this Collection." " Index to Species." It was printed to 

 accompany the fifteen more or less incomplete sets of his 

 entomological writings that he possessed and was bound with 

 them and distributed to a few libraries and friends. The 

 number of actual entomological contributions listed in it, and 

 which were wholly or in part by him, amounted to fifty-one, 

 while the nearest complete " sets " contained but thirty-six 

 papers other than the list itself. The paper is much in need 

 of correction and, owing to his later writings, it is necessa- 

 rily incomplete. It is moreover available to very few on ac- 

 count of the aforementioned very small edition. 



For the reasons given above, and because of cherished 

 recollections of my departed friend. Dr. Hamilton, the writer 

 undertook the preparation of this paper which appears under 

 an appropriate and comprehensive title. Mr. Charles W. 

 Leng has, very kindly and definitely, advised me as to the 

 new genus and species described in their (Leng and Hamil- 

 ton's) valued synopsis of the Lamiinae of North America. 



* Dr. Hamilton was born Feb. 17, 1827, and died Feb. 12, 1897. An 

 account and picture of him was published in Entomological News, 

 April, 1897. 



t The collection and study of beetles was his favorite pastime and, 

 while part of his entomological writings was on other insects, he never 

 undertook the description of new species outside of his chosen order. 



TRANS. AM. ENT. SOC, XXXVII. (46) 



