CONTENTS 



Original Papers 



Page 

 Chemistry. — The ammonia system of acids, bases and salts, Edward C. 

 Franklin • 215 



Botany. — Jointed leaves of Amygdalaceae, O. F. Cook 218 



Merotypes as a means of multiplying botanical types, Walter T. 

 Swingle 220 



A method of preserving type specimens, Maude Kellerman 222 



Abstracts 



Geology 224 



Hydrology 226 



Phytopathology , .227 



Proceedings 



Philosophical Society 229 



Geological Society 230 



Biological Society 233 



Anthropological Society 236 



Programs and Announcements 



Philosophical Society 238 



Chemical Society 238 



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