CONTENTS 

 Original Papers 



Page 



Radiotelegraphy. — Calculation of antenna capacity. L. W. Austin 393 



Crystallography. — The crystallography and optical properties of the photo- 

 graphic sensitive dye, pinaverdol. Edgar T. Wherry and Elliot Q. 

 Adams 396 



Ornithology. — Grandalidae, a new family of turdjne Passeriformes. Harry 

 C. Oberholser. . 405 



Abstracts 



Botany ' 408 



Engineering • 409 



Ornithology 409 



Geology 414 • 



Proceedings 



Botanical Society 415 



Entomological Society 416 



Biological Society 418 



Scientific Notes and News 42 1 



