1918.] NATURAL SCIENCES OF PHILADELPHIA. 355 



on the Jessup I'und, for the care of this department. Mr. Gordon 

 has labelled and catalogued a number of accessions to the Wm. 

 S. Vaux and the general collections and prepared a check list of the 

 entire series. The William S. Vaux collection now numbers about 

 9,000 specimens, nearly half of which are on exhibition; the Academy 

 general series, 10,500 specimens, of which about 1,000 are exhibited, 

 and the Adam Seybert collection, which is kept separate, 1,825 

 specimens, while there are 80 falls of meteorites represented. 



The duplicate specimens not on exhibition are arranged sys- 

 tematically in storage cases immediately below the exhibition series 

 so that they may be consulted with the greatest ease. 



Mr. Gordon has overhauled a large number of mineral and rock 

 specimens received at various times and cleaned and labelled such 

 as are of value. The rock series now in the Academy's possession, 

 including the first and second Pennsylvania Geological Survey col- 

 lections, amounts to about 19,000 specimens. 



The most important accession during the year was the Mrs. W. 

 A. Drown collection, presented by Miss Emily Drown, comprising 

 some 6,000 specimens. It was especially notable for the large num- 

 ber of species represented, a number of which were new to our 

 collection. 



Archeology. 



Miss H. N. Wardle has overhauled several thousand specimens 

 mostly belonging to the Haldemann collection, which were stored in 

 the basement, and has cleansed and identified them, entering some 

 2,000 in the catalogue. Little new material was obtained during the 

 year. 



Mr. Clarence B. Moore's expedition during the spring of 1918 

 explored territory along the Apalachacola River, the Flint River to 

 Bainbridge, Ga., and the Florida coast from St. Andrew's Bay to 

 Crystal River. The result demonstrated how thorough had been 

 his earlier exploration of the same region, as little new material was 

 obtained. Pottery and artifacts regarded as duplicates were pre- 

 sented by Mr. Moore to the Museum of the American Indian, 

 Heye Foundation. Owing to necessary repairs to his boat Mr. 

 Moore was compelled to abandon his usual autumn expedition. 



Throughout the year the undersigned Curators have been without 

 the advice and counsel of their associate Maj. Henry Tucker, who 

 since the entry of America into the war has been in the service of 

 his country in the medical corps of the Army. 



WiTMER Stone, Chairman, 

 Henry A. Pilsbry. 



