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entomologists’ directory. 
Sciences of Philadelphia, The American Entomological Society and The 
Entomological Section of the Academy are in reply to numerous queries 
for information in regard to the terms of membership in the individual 
societies. It will be noted that there are no dues for The American 
Entomological Society, but one must be a member of the Academy and 
pay its dues before being eligible. 
The present officers of The American Entomological Society are : 
President, Philip P. Calvert, Ph. D. ; Vice-President, H. W. Wenzel; 
Treasurer, Ezra T. Cresson ; Recording Secretary , Henry Skinner, 
M. D.; Corresponding Secretary, W. J. Fox; Curator , Henry Skinner, 
M. D.; Librarian, W. J. Fox; Publication Committee, Ezra T. Cresson, 
C. Few Seiss and B. H. Smith ; Executive Committee, Philip Laurent, 
Chas. Liebeck and H. W. Wenzel ; Finance Committee, James W. Mc- 
Allister, C. S. Welles and C. C. Cresson. 
The present officers of The Entomological Section of The Academy of 
Natural Sciences of Philadelphia are : Director, Philip Laurent ; Vice- 
Director, H. W. Wenzel ; Treasurer, Ezra T. Cresson ; Conservator , 
Henry Skinner, M. D.; Recorder, Henry Skinner, M. D. ; Secretary, Wm. 
J. Fox; Publication Committee, C. W. Johnson andj. H. Ridings. 
The library of The American Entomological Society contains (October, 
1898) 2864 volumes, including in volumes of pamphlets averaging fifteen 
titles to a volume. The various departments are represented as follows: 
Journals, 1436; Coleoptera, 389; General Entomology, 341 ; Lepidoptera, 
214 ; Economic Entomology, 122 ; Hymenoptera, 101 ; Diptera, 86 ; Hem- 
iptera, 49; Orthoptera, 40; Neuroptera, 25 ; Miscellaneous, 61. This 
represents an increase of nearly 100 per cent since 1888, when the total 
number of volumes was 1445. In the library of The Academy of Natural 
Sciences of Philadelphia there are 1221 volumes, exclusive of journals, 
and 1188 pamphlets, devoted entirely to Entomology. The pamphlets 
form 77 additional volumes. While the works of our library are partially* 
duplicated by the other, it is safe to say that the foremost collection of 
Entomological works in America is to be found in the building of The 
Academy of Natural Sciences of Philadelphia, where both libraries are 
situated. 
The collections of insects are large and valuable ; they contain many 
type specimens and represent the labor of a number of the older workers 
in this branch of natural science. In the Hymenoptera will be found 
almost all the types of Mr. E. T. Cresson and many of those of Mr. W. J. 
Fox and other systematists in this order. The valuable collection of 
Coleoptera was supplemented by the large amount of material collected 
by the late Charles Wilt. Bland’s types are also in this collection. The 
Horn collection, bequeathed by the late Dr. George H. Horn, repre- 
sents his life work and contains practically all his types. At the time of 
his death he was the leader in this branch of entomology in America. It 
is safe to say that the finest collection of Odonata in America is also here 
and represents the large amount of work done in this order by Dr. P. P. 
