CONTENTS 



Original Papers 



Page 



Oceanography. — Observations on ocean temperatures in the vicinity of 

 icebergs and in other parts of the ocean. C. W. Waidner, H. C. 



Dickinson and J. J. Crowe 405 



Electricity. — High frequency ammeters. J. H. Bellinger 412 



Chemistry. — ^The interpretation of mineral analyses. Roger C. Wells 416 



Chemistry. — Note on the analysis of water from a deep well in Pennsyl- 

 vania. George Steiger 423 



Botany — ^A new shrubby buckeye. W. W. Ashe 424 



Abstracts 

 Physics 425 



Proceedings 



The Philosophical Society of Washington 426 



The Biological Society of Washington 427 



