Contents : 



Theories and Facts of Arthropodal Vision, - Page 49 

 By Albert S. Barker 



A Current Variation in English Pronunciation, " 69 



By Henry L. Broomall 



A Glance at the Mammalian Dawn, - - - "75 

 By B. M. Underhill, V. M. D. 



Minutes of the Institute, "88 



Minutes of Section A, "90 



