Contents : 



Parasitic Adaptation, By B. M. Underbill, V. M. D., Page 93 



Municipal Water Supplies, By C. M. Broomall, 

 Concerning Navicula socialis, By T. Chalkley Palmer, 

 The Speech of Insects, By Sanford Omensetter, 

 Minutes of the Institute, ... 



Minutes of Section A, - - - - 



Institute Notes, . . _ . 



104 



115 

 121 



137 



139 

 140 



