1905.] 
NATURAL SCIENCES OF PHILADELPHIA. 
927 
brought about by improvements in cases and boxes. The Conservator 
gratefully acknowledges assistance from Dr. P. P. Calvert, Mr. J. A. G. 
Rehn, Mr. E. T. Cresson, Jr., and Mr. Henry L. Yiereck. One member 
and three associates have been elected during the year. 
At a meeting held December 28, 1905, the following persons were 
elected officers for the ensuing year : 
Director, 
Vice-Director, . 
Treasurer, 
Recorder, 
Secretary, 
Conservator, 
Publication Committee 
Philip Laurent. 
H. W. Wenzel. 
E. T. Cresson. 
Henry Skinner, M.D. 
Frank Plaimbach. 
Henry Skinner, M.D. 
( James H. Ridings, 
(C. W. Johnson. 
Henry Skinner, 
Recorder. 
The Botanical Section. 
The Botanical Section reports the collections at present to be in 
excellent condition, the Conservator having devoted most of his time 
to mounting and distributing the accumulation of material which has 
been on hand for some years. Progress has been made in the mount- 
ing of the Short Herbarium, and the MacElwee plants have been in large 
part mounted and are ready for cataloguing and distribution. It is ex- 
pected that this work will be completed early in the coming year. 
The additions to the Herbarium during the year consist of 4,850 
sheets and, while not so large numerically as those of the year previous, 
contain many specimens not formerly represented in the collections. 
Contributions have been received from Messrs. Charles S. William- 
son, George Hartnell, Dr. John W. Harshberger, Benjamin H. Smith, 
Samuel S. Van Pelt, E. G. Vanatta, Joseph Crawford, Witmer Stone, 
the Conservator, and others, with exchanges from the New York 
Botanical Gardens and the United States Department of Agriculture. 
The Academy’s expedition to Fulton County, Pa., in June, added 94 
sheets of plants from that region; and the exploration of Bermuda, 
under the joint auspices of the Academy and the New York Botanical 
Garden, brought back probably the most comprehensive collection of 
vascular plants ever taken from the islands, consisting of more than 
400 numbers and 4,000 individual specimens, to be divided between 
