CONTENTS 



Original Papers 



Page 

 Pyrornetry. — The proper type of absorption glass for an optical pyrometer. 

 Paul D. Foote, F. L. Mohler, and C. 0. Fairchild 545 



Geology. — An andalusite mass in the pre-Cambrian of the Inyo Range, 

 California. Adolph Knopf 549 



Geology. — A new area of Carboniferous rocks with some coal in the north 

 end of the Gulf embayment. Eugene Wesley Shaw 552 



Abstracts 



Physics 561 



Magnetism 562 



Geology 562 



Paleontology 565 



Botany 566 



Engineering 568 



References 

 Ornithology 569 



