fiS^^ 



PROCEEDINGS 



OF THE , , w 



1 ii;liAi;Y 



,•/ \ 



American PhilosopJ^fc^ Society 



HELD AT PHILADELPHIA 



FOR PROMOTING USEFUL KNOWLEDGE 

 Vol. LV. 1916. No. 6. 



CONTENTS 



PAGE 



Some Properties of Vibrating Telephone Diaphragms. A. E. Kennelly 

 AND H. O. Taylor 415 



The Normal Gastric Secretion. By Martin E. Rehfuss ' 461 



The Common Folk of Shakespeare. By Felix E. Schelling . . 471 



The ^Origin and Vegetation of Salt Marsh Pools. By John W. 

 Harshberger 481 



Pathological Anatomy of the Injected Trunks of Chestnut Trees. By 

 Caroline Rumbold 485 



Color-Photographs of the Phosphorescence of Certain Metallic Sul- 

 phides. By Edward D. Nichols 494 



Minutes ' i 



PHILADELPHIA 

 THE AMERICAN PHILOSOPHICAL SOCIETY 



104 South Fifth Street 

 1916 



