1907.] 
NATURAL SCIENCES OF PHILADELPHIA. 
575 
Recorder , ..... Henry Skinner, M.D. 
Publication Committee, . E. T. Cresson, 
J. H. Ridings. 
Respectfully submitted, 
Henry Skinner, 
Conservator. 
The Botanical Section. 
During the past year the work of placing the sheets in species 
covers has been completed for about three-fourths of the herbarium; 
pressure of other work and lack of assistance have delayed progress 
for the time being; it is hoped, however, that the arrangement may be 
completed during the coming year. 
Early in the year six new metal cases were received and have been 
placed in the north gallery room for the accommodation of the ferns 
and fern allies with the mosses and lichens, the change of arrangement 
being required by the rapid growth of the local herbarium. 
Additions to the collections amount to about 5,500 sheets. Of these, 
exchanges have been received from the New York Botanical Gardens 
of 174, principally from the Bahamas, and the University of Pennsyl- 
vania, 147 from Bermuda. Gifts have been received from the St. Louis 
Botanical Gardens, 565 numbers of Lindheimer’s Texan plants, and 
about 750 from the following individuals: Edwin B. Bartram, Stew- 
ardson Brown, Joseph Crawford, Mrs. Thomas P. Hill, Bayard Long, 
C. F. Saunders, Benjamin H. Smith, Edward G. Vanatta, Samuel S. 
Van Pelt and Charles S. Williamson. 
The Academy’s expedition to Arizona and New Mexico under Dr. 
Pilsbry added 238 sheets, and the following have been added by 
purchase : By the Academjq a small collection of Surinam plants, and 
by the Botanical Section, 425 sheets of the Pere Duss herbarium from 
Martinique and Guadeloupe; from A. A. Heller, 470 sheets of Cali- 
fornia plants, and from C. G. Pringle, 300 Mexican plants. 
An increasing interest has been manifested during the year in the 
meetings of the Philadelphia Botanical Club, its members having 
added 2,500 sheets to the local herbarium. Acknowledgment is here 
made of the efficient work rendered by its Curator, Mr. Samuel S. 
Van Pelt. 
