1915.] NATURAL SCIENCES OF PHILADELPHIA. 581 



been articulated and mounted in the centres of the geological and 

 mineralogical halls and attract much attention. This work was 

 done by the Academy's taxidermist, Mr. David McCadden, assisted 

 by Mr. E. W. Stucke. 



The collection of skins of the larger mammals was carefully gone 

 over during the year and systematically arranged by Dr. Witmer 

 Stone, while the entire osteological collection was systematized and 

 labelled by Mr. Earl L. Poole, a student on the Jessup Fund. This 

 collection is now readily accessible and its usefulness vastly increased. 



Twenty-six mammals have been received from the Zoological 

 Society of Philadelphia during the year, which have been variously 

 prepared by the taxidermist as skins or osteological material. 



A set of the McGregor restorations of Pithecanthropus and other 

 early anthropoid and human types was presented by Dr. Samuel G. 

 Dixon. 



Numerous students have made use of the collections during the 

 year and specimens have been loaned to Drs. J. A. Allen and C. Hart 

 Merriam, Messrs. W. H. Osgood and H. W. Henshaw. 



Birds. 



The rearrangement and renovation of the study series of birds 

 have progressed satisfactorily during the year and only five families 

 of the Passeres and the Steganopodes still demand attention. Mr. 

 D. E. Culver, student on the Jessup Fund, has relaxed the old 

 unmounted specimens and remade many of the skins, while Dr. 

 Witmer Stone has systematically arranged and labelled the groups 

 as they were completed. He has also entirely rearranged the local 

 study series of land birds, bringing all of the local material together 

 for the first time. 



A number of specimens have been identified for the Zoological 

 Society and for correspondents. 



Mr. Samuel N. Rhoads, accompanied by Mr. Earl L. Poole, 

 undertook an expedition to Guatemala, from February to April, in 

 the interests of the Academy, the expenses being met partly by the 

 Academy and partly by Mrs. Beulah M. Rhoads and William P. 

 Elkinton. 



A fine series of about 700 birds, a number of mammals and some 

 specimens in other branches were obtained. 



Besides this material an additional series of birds from Santa Marta, 

 Colombia, was purchased, as well as a series of Petrels from South 

 Georgia Island. 



