1919.] NATURAL SCIENCES OF PHILADELPHIA. 311 



room, the deSchweinitz and other historic collections being arranged 

 in a fireproof vault which had been erected there. The north room 

 has been fitted up for the mounting and preparation of specimens. 



During the year, Miss Ada Allen, who has continued as an aid in 

 the department, has mounted upwards of 3700 sheets of specimens 

 comprising the remainder of the Joel Carter herbarium exclusive of 

 the local material, 302 specimens from California, and 613 sheets of 

 New England plants both of which were received by purchase. Most 

 of these have been catalogued by Mr. Brown and distributed. Much 

 additional time was spent in the general arrangement of the herbar- 

 ium in its new quarters. 



Mr. Bayard Long has spent much time in the critical study of 

 various groups in the local herbarium and in its general supervision. 



Much use has been made of the herbarium by visiting botanists 

 and specimens have been loaned to C. A. Wetherby, M. L. Fernald, 

 W. B. Maxon, C. Schneider, A. L. Grant and F. L. Stevens. 



Minerals and Rocks. 



The change of location in this department to rooms adjacent to the 

 exhibition collections of minerals has been very advantageous as it 

 brings all of the mineralogical and geological material into close as- 

 sociation where it is readily available for consultation. 



The collection of Pennsylvania minerals has been transferred to 

 the gallery of the mineral hall formerly occupied by the State Depart- 

 ment of Health exhibit, where there is abundant room for its ex- 

 pansion. 



The Curators are again indebted to Mr. Frank J. Keeley, curator of 

 the William S. Vaux Collections, and to Mr. Samuel G. Gordon, a 

 student of the Jessup Fund, for all the attention that has been given 

 to this department. Mr. Gordon has cared for the various accessions 

 and has completed an examination of the old collecttons and dupli- 

 cates stored in the building, preparing the latter for gift or exchange 

 to other institutions. He has also made a number of field trips to 

 various counties in Pennsylvania and obtained many specimens of 

 great value to the State collection. 



Archeology. 



Miss H. N.Wardle,.who has cared for the collections in this depart- 

 ment, reports that considerable shifting of exhibits has been necessary 

 to make room for accessions or the display of material not hitherto 

 on exhibition, many specimens from the A. H. Gottschall collection 

 of North American Indian material having been thus displayed. 



