414 THE I50TAXISTS OF PHILADELPHIA. 



SMITH, Miss AMELIA C. Student in the Department of 



Biology, University of Pennsylvania. Author of a 



paper on " Aphyllon uniflorum." 

 SNYDER, JACOB.* 



STAUFFER, JACOB.* Lancaster, Pa. 

 STENZ, CHARLES F. Natrona, Pa. 

 STOKES, A. S. 



STOWELL, WILLARD A. Trenton, N. J. 

 SUTTOX, HARRY I. Philadelphia. 

 THOMPSON, Miss CAROLINE B. Student in the Department 



of Biology, University of Pennsylvania, and author 



of a paper on " The Structure and Development of 



Internal Phloem in Gelsemium sempervirens, Ait," 



Contributions from Botanical Laboratory, University of 



Pennsylvania, II : 41, with plate. 

 TRIMBLE, WILLIAM. A botanist familiar with the plants of 



Philadelphia and vicinity. 



TRIMBLE, DR. SAMUEL. Lima, Delaware County, Pa. 

 TROTH, HENRY. A noted photographer of plants and 



flowers. Philadelphia. 

 VAN VLECK, REV. JACOB. A contemporary of Humphry 



Marshall. 

 WALMSLEY, W. H. A diatomist, micro-photographer and 



noted optician. 

 WATTERS, PROF. LEON H. Media, Pa. A microscopist of 



some note. 



\VKAVEK. GERRITT E. H. Philadelphia. 

 WILLIAMS, Miss, New Hope, Pa. A maker of excellent 



water-color sketches of wild flowers. 



; [>frr;iseil. 



