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 
dowering 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; 
Aliss 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; Airs. Joseph AI. Fox and Aliss Olivia Rodham, each 
2; Dr. William L. Abbott, Dr. Curtin, and Rev. Air. 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. Air. Samuel S. Van 
Pelt has continued his valued services in the care of this division 
of the herbarium, and Air. Bayard Long has also done 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. 
AIineralogical 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 
