1911.] 
NATURAL SCIENCES OF PHILADELPHIA. 
601 
Dr. Calvert lias continued to care for the Odonata and the thanks 
of the department are due him. 
Volume XXII of the Entomological News has been completed 
with 480 pages and 19 plates; Transactions of the American 
Entomological Society (Entomological Section), 380 pages and 
13 plates. 
At a meeting of the Section held December 11 the following were 
elected officers to serve for the coming year: 
Director 
Philip Laurent. 
Vice-Director . 
Henry W. Wenzel. 
Treasurer 
E. T. Cresson. 
Conservator... 
Henry Skinner. 
Secretary 
J. A. G. Rehn. 
Recorder 
Henry Skinner. 
Publication Committee . 
E. T. Cresson, 
E. T. Cresson, Jr. 
Henry Skinner, 
Recorder 
Botanical Section. 
During the year, twenty metal dust- and insect-proof cases have 
been added to the furnishing of the herbarium, and six wooden cases 
transferee! from the general herbarium to the local room, to provide 
additional space for that rapidly growing collection. 
Early in the year, the Conservator went to Venezuela as a member 
of the Francis E. Bond Expedition, when a collection of 850 sheets 
of plants was made. The herbarium of the late Robert E. Griffiths, 
presented by Dr. Astley P. C. Ashhurst and Dr. William Ashhurst; 
the herbarium of Dr. Thomas S. Githens, presented by the collector, 
and a collection of plants of the Yellowstone made by Mr. Benjamin 
H. Smith have also been added. There have been received through 
exchange, 112 sheets from the New York Botanical Garden, 102 
sheets from the Gray Herbarium and 60 sheets from the United 
States National Museum. The Section has purchased a series of 
181 sheets of North American Violets from Prof. Ezra Brainarcl and 
395 sheets of Nevada and Oregon plants from A. A. Heller. 
The local herbarium, under the care of Mr. Samuel S. Van Pelt, 
has been increased during the year by 3,768 sheets, received princi- 
pallj' from members of the Philadelphia Botanical Club. In addi¬ 
tion, the local plants in the general herbarium have been transferred, 
