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 fistalosa, 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. 



