CONTENTS 



Original Papers 



Page 



Mineralogy. — Calcium vanadates from Peru, Colorado aud Utah. W. F. 



Hillebrand, Fred. E. Wright, and H. E. Merwin 157 



Botany. — A new and generic name for the sapote. O. F. Cook 158 



Bacteriology. — The destruction of bacteria in milk by ultra violet rays. S. 



Henry Ayers and W. T. Johnson 160 



Abstracts / 



Oceanography 165 



Physical Chemistry 165 



Engineering 166 



Geography i 167 



Palaeontology 167 



Botany 168 



Zoology 168 



Ichthyology 172 



Proceedings 



The Geological Society of Washington 173 



The Biological Society of Washington 174 



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