PROCEEDINGS 



Delaware County Institute of Science 



Carolus M. Broomall, Editor. 



Publication Committee : 



T. Chalkley Palmer, Chairman ; Henry L. Broomall, 



Trimble Pratt, M. D. 



Volume III: October, 1907, to July, 1908 



Media, Pa. 



HORARY 

 B<>^ . i,..L 



