CONTENTS 



OBiGiKi^L Papers 



Bage 



Radiotelegraphy. — Resistance of radiotelegraphic antennas. L. W. Austin. 525 



Physics. — The "center of gravity" and "effective wave length" of trans- 

 mission of pyrometer color screens. Paul D. Foote 526 



Botany. — On the application of the generic name Nauclea of Linnaeus. 

 E. D. Merrill 630 



Anthropology. — The origin of the unit type of Pueblo architecture. J. 

 Walter Fewkes 543 



Proceedings 



The Washington Academy of Sciences 553 



The Philosophical Society 555 



