Volume VII Number 2 



PROCEEDINGS 



OF THB 



DELAWARE COUNTY 

 INSTITUTE OF SCIENCE 



Publication Committee : 



T. Chalkley Palmer, Chairman; Trimble Pratt, M, D., 



J. C. Starbuck, M. D., B. M. Underbill, V. M. D., 



M. H. Hoyt, Edward V. Streeper, Jr. 



Carolus M. Broomall, Editor. 



Media, Pa. 



Issued at intervals. Limited edition for free distribution on application. 

 Address all correspondence to the Editor. 



Issued October 15th, 1915 



