CONTENTS 



Original Papers 



Page 



Oceanography. — On the temperature of the water below the 500-fathom 

 line on the west coast of South and North America. Austin H. Clark. 413 



Physics. — Constants of spectral radiation of a uniformly heated inclosure 

 or so-called black body, II. W. W. Coblentz 418 



Physics. — A study of the inductance of four-terminal resistance standards. 

 Francis B. Silsbee 419 



Chemistry. — The determination of aluminium as oxide. William Blum .... 421 



Paleontology . — Oligocene fossil eggs. Edward L. Teoxell 422 



Botany. — Pleiospermium, a new genus related to Citrus, from India, Cey- 

 lon, and Java. Walter T. Swingle 426 



Physiology. — Studies on the mineral elements in animal nutrition. E. B. 

 Forbes 431 



Abstracts 



Physics 447 



Photometry . . .' 447 



Geology 449 



Mineralogy 453 



Botany 454 



References 



Paleontology 455 



Botany 455 



Forestry 457 



Phytopathology 457 



Plant Physiology 458 



Evolution , 459 



Entomology 460 



Physiology 463 



Pathology 463 



Technology 463 



