CONTENTS 



Original Papers 



Page 



Geology. — Plumbojarosite and other basic lead-ferric sulphates from the 

 Yellow Pine district, Nevada. Adolph Knopf 497 



Botany. — Eysenhardtia polystachya, the source of true Lignum nephriticum 

 mexicanum. William Edwin Safford 503 



Abstracts 



Geology 618 



Mineralogy 521 



Botany 622 



Zoology. . . . ;*. 522 



References 



Entomology 523 



Technology 523 



