1921] NATURAL SCIENCES OF PHILADELPHIA 541 



M. Schcll, Mrs. E. 0. Shakespeare, S. F. Sharpless, Miss Caroline 

 Sinkler, Alfred G. B. Steel, Hon. Mayer Sulzberger, Nicolas 

 Thouron, Dr. B. M. Underhill, Daniel B. Wentz, Mrs. William 

 D. Winsor, Clement B. Wood, Mrs. George Woodward. Associate 

 Mem er: Earl L. Polle (Reading, Pa.). Junior Members: Frank- 

 lin P6 Cook, John T. Emlen, Jr., William P. Harrington, Charles 

 EHot . Underdo wn. 



