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. 



IVIany 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 nev/ 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. 



