CONTENTS 



Page 



Original Papers 



Entomology. — Description of a new species of Sphenophorus from Florida 

 (Coleoptera). F. H. Chittenden 313 



Petrography. — On an iron meteorite found at Yenberrie, Northern Territory of 

 Australia. John C. H. Mingaye 314 



Radiotelegraphy. — An electron-tube transmitter of completely modulated 

 waves. Lewis M. Hull 316 



Abstracts 



Physics 324 



Geology 326 



Paleontology 327 



Technology 328 



Ceramics 329 



Proceedings 



Washington Academy of Sciences 331 



Anthropological Society 333 



Scientific Notes and News 337 



