1911.] 
NATURAL SCIENCES OF PHILADELPHIA. 
615 
Francis W. Pennell. One thousand one hundred and seventy-six specimens. 
Harold W. Pretz. One specimen. 
Evan Randolph, Jr. Monarda fistulosa, Dipsacus sylvestris. 
B. H. Smith. Thirty-eight specimens from Yellowstone National Park. 
Witmer Stone. Three specimens. 
United States National Herbarium. Sixty Violets. Exchange. 
Charles S. Williamson. One hundred and sixteen specimens. 
Botanical Section—Purchased. One hundred and eighty-one sheets of 
violets from Prof. Ezra Brainerd; three hundred and ninety-five sheets of Nevada 
and California specimens from Dr. A. A. Heller. 
