Bio'o^cai APRIL, 1917. 



& MedicaJ 

 ^ SerJa 



STORAVac 



ENfOMOLOGICAL NEWS 



Vol. XXVI II. 



No, 4. 



Henry Shimer 

 J828-I895, 



PHILIP P. CALVERT, Ph.D., Editor. 

 E. T. CRESSON, Jr., Associate Editor. 



HENRY SKINNER, M.D., Sc.D., Editor Emeritus. 



. PHILADELPHIA; 



The Academy of Natural Sciences, 

 logan square. 



Entered at the Philadelphia Post-Ofiice as Second-Class Matter. 



