188G.] iJATURAL SCIENCES OF PHILADELPHIA. 38t 



intended to be added to the Synoptical Series, by the aid of 

 which the student, after determining the genus of any specimen, 

 will be referred to the case containing the species ; in the latter 

 he will find represented, either by specimens or colored illustra- 

 tions, all the (figured) species of the genus known to science, 

 arranged in the order of their natural relationships. 



"Much of the success of these features of arrangement is due 

 to the efficient co-operation of my assistant, Mr. Marshall. 



" Messrs. J. H. Redfield, S. R. Roberts and Wm. L. Mactier, 

 have contributed to the Section's collection of autograph letters 

 of conchologists." 



The officers of the Section for 1887 are 



Director, .... W. S. W. Ruschenberger. 



Vice-Director, 

 Recorder, 

 Secretary , 

 Treasurer , . 

 Librarian, . 

 Conservator, 



. John Ford. 



. S. Raymond Roberts. 



. John H. Redfield. 



. Wm. L. Mactier. 



. Edward J. Nolan. 



. Geo. W. Tryon, Jr. 



All of which is respectfully submitted by 



S. Raymond Roberts, 



Recorder. 



REPORT OF THE ENTOMOLOGICAL SECTION. 



(American Entomological Society.) 

 The Entomological Section of the Academy has experienced 

 an improvement this 3'ear, in comparison with preceding ones. 

 The meetings, which have been regularly held, have been better 

 attended, and a more general interest taken in the proceedings. 



One member and five associates have been elected. During 

 the 3'ear the Section has lost two members by death. Mr. Cbas. 

 Wilt, one of the deceased members, was one of the founders of 

 the American Entomological Society, and had been very active 

 in all the work of the Section. His valuable collection of Coleop- 

 tera has been given by his son, Mr. H. C. Wilt, to the American 

 Entomological Society, while the Lepidoptera were purchased at 

 an almost nominal price by the same society. The custodian of 

 the societ}'' is now engaged in arranging these collections. All 

 duplicates will be set aside for placing in the public exhibition of 



