CONTENTS 



On " Psychology as the Behaviorist Views It." By E. B. 

 TiTCHENER I 



The Valence of Nitrogen in Ammonium Salts. By William 

 A. NoYES and Ralph S. Potter i8 



Some Further Considerations in the Development of the Elec- 

 tron Conception of Valence. By K. George Falk 25 



Hewettite, Metahewettite and Pascoite, Hydrous Calcium Vana- 

 dates. By W. F. Hillebrand, H. E. Merwin and Fred 



E. Wright 31 



The Influence of Atmospheric Pressure upon the Forced 



Thermal Convection from Small Electrically Heated Plati- 

 num Wires. By A. E. Kennelly and H. S. Sanborn 55 



The United States as a Factor in World Politics. By L. S. 

 RowE 78 



The Morphology of the Passamaquoddy Language of Maine. 

 By J. Dyneley Prince 92 



Discussion of " A Kinetic Theory of Gravitation." By Charles 



F. Brush 118 



The Affinities and Distribution of the Lower Eocene Flora of 



Southeastern North America. By Edward Wilber Berry. . 129 



Solar ]\Iagnetic Phenomena. By George E. Hale 251 



The Vegetation of the Sargasso Sea. By William G. Farlow 257 



The Kinetic System. By George W. Crile 263 



Newer Aspects and Methods in the Study of the Mechanism 



of the Heart Beat. By Alfred E. Cohn 287 



The Use of a Photographic Doublet in Cataloguing the Positions 



of Stars. By Frank Schlesinger 303 



Some Observations on the Psychology of Jurors and Juries. 



By Patterson DuBois 307 



On the Production of an Artificial Hiss. By E. B. Titchener. 323 



Minutes iii-xxi 



