CONTENTS 



Obioinal Papers 



Page 



Oceanography. — An electrical instrument for recording sea-water salinity. 

 Ernest E. Weibel and Albert L. Thxjras 145 



Ethnobotany. — The maho, or mahagua, as a trans-Pacific plant. 0. F. Cook 

 and Robert Carter Cook 153 



Abstracts 



Geology 171 



Ornithology 174 



Proceedings 



Washington Academy of Sciences 177 



Biological Society 177 



Entomological Society 179 



Philosophical Society 180 



Scientific Notes and News 184 



