4 



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STORAGt 



^^ Biological 



yji & Medical 



JUNE, 1917. 





pOMOLOGICAL NEWS 



Vol. XXVIII. 



No. 6 



Henry Shimer 

 I828-I895, 



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

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



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



Advisory Committee: 



KZRA T. CRESSON. 

 PHILIP LAURENT, 



ERICH DABCKB. 



J. A. G. REHN. 

 H. W. WENZEL. 



PHILADELPHIA : 



The Acadbmy of Natural Sciences, 

 logan square. 



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



