1914.] 
NATURAL SCIENCES OF PHILADELPHIA. 
661 
Academy in connection with the Orthoptera collection. Through 
his liberality also, Mr. Rehn was enabled to accompany him to 
Boston and Washington to study type material. 
The Entomological department has received many valuable 
accessions during the year. A series of 5,296 moths and other 
insects, the collection of the late Charles S. Welles, was presented by 
Mrs. Welles, while Mr. C. C. Deam presented 892 Lepidoptera from 
Florida and Guatemala. Dr. Witmer Stone collected 612 insects 
in central South Carolina, and Dr. Skinner some 1,500 specimens 
from eastern Cuba, one-third of which were Lepidoptera. Numerous 
local specimens were also collected or presented. 
Many specialists have availed themselves of the opportunity of 
studying the collections, among whom were Messrs. A. N. Caudell, 
W. T. Davis, Charles T. Ramsden, W. P. Comstock, F. E. Lutz, 
R. A. Leussler, C. T. Alexander. 
Other Invertebrates. 
Dr. H. A. Pilsbry has spent considerable time in the study of the 
Cirripeds of the Academy and the National Museum Collections, 
upon which he has prepared a report. With the addition of dupli¬ 
cates from the National Museum received in return for this work, 
the collection of the Academy is now believed to be the third in the 
number of species represented. 
Mr. Fowler has cared for most of the other alcoholic Crustacea 
and lower invertebrates received during the year and has been 
instrumental in securing a large number of local specimens, so that 
the collection is now fairly representative of the local fauna. He 
cleansed the entire series of local Arachnida and Myriapoda, placing 
them in new vials, which were then arranged in large jars and flooded 
with alcohol. 
Invertebrate Fossils. 
Mr. E. G. Vanatta has catalogued and labelled the collection of 
British Crag Fossils. Little has been accomplished in the rearrange¬ 
ment of the palaeozoic material which is badly in need of study. 
The recent accessions have been studied, identified, and arranged 
by Dr. Pilsbry, notably the Vickers-Oberholtzer Collection of Oeland 
fossils and various small lots of tertiary and cretaceous. Dr. Amos 
P. Brown has also continued, as opportunity arose, to render generous 
assistance in this department. A fine group of siliceous sponges 
from the Upper Devonian of New York has been presented by 
Dr. John M. Clarke. 
