1912.] NATURAL SCIENCES OF PHILADELPHIA. 563 



has been transferred from the north to the central gallery room, 

 the north room being used as a work room. The mounting of the 

 flowering plants and ferns of the Albert Commons Herbarium has 

 been completed. 



The Conservator paid 'two visits to Bermuda during the year, 

 from August 22 to September 21 and from November 30 to December 

 14, when important collections were made. 



Ten thousand seven hundred and eighty-two sheets of plants have 

 been added to the herbarium. Of these, 7, 198, distributed through the 

 general herbarium, have been secured by purchase, 352 by the Section. 

 Other sources of supply were from Academy expeditions, 300; Arnold 

 Arboretum, 292; United States National Museum, 385; in exchange 

 and presented by individuals as follows: Dr. James Darrach, 2,000; 

 Miss Caroline A. Boice, 2,000; Charles S. Wlliamson, 480; Francis W. 

 Pennell, 443; Witmer Stone, 270; Henry A. Lang, 250; Edwin B. 

 Bartram, 200; Dr. D. G. Metheny, 127; Harold W. Pretz, 28; Henry 

 F. Michell Co., 27; Harold St. John, 21; E. G. Vanatta, 12; Silas 

 L. Schumo, 6; Mrs. Joseph M. Fox and Miss Olivia Rodham, each 

 2; Dr. William L. Abbott, Dr. Curtin, and Rev. Mr. Baker, each 1. 

 Three thousand five hundred and eighty-four sheets have been 

 added to the local herbarium of the Philadelphia Botanical Club, 

 being contributed principally by its members. Mr. Samuel S. Van 

 Pelt has continued his valued services in the care of this division 

 of the herbarium, and Mr. Bayard Long has also clone much valuable 

 work. The Philadelphia Botanical Club has held its monthly 

 meetings in the Academy during the year as heretofore. 



At the annual meeting of the Section the following were elected 

 as the officers for the coming year. 



Director Benjamin H. Smith. 



Vice-Director Joseph Crawford. 



Recorder Charles S. Williamson. 



Treasurer and Conservator Stewardson Brown. 



Respectfully submitted, 



Stewardson Brown, 



Conservator. 



Mineralogical and Geological Section. 



The Section has held four meetings this year, with about the 

 average attendance. 



A communication was made by B. S. Lyman on the Formation 



