SCIENCE 



A WEEKLY JOURNAL 



DEVOTED TO THE ADVANCEMENT OF SCIENCE. 



Editobial Committee : S. Newcosib, Mathematics ; R. S. Woodward, Mechanics ; E. C. Pickeeino, As- 

 tronomy ; T. C. Mendenhall, Physics ; E. H. Thtjeston, Engineering ; Iea Eemsen, Chemistry ; 

 J. Le Conte, Geology; W. M. Davis, Physiography; O. C. Maesh, Paleontology; W. K. Brooks, 

 Invertehrate Zoiilogy ; C. Hart Mereiam, Vertehrate Zoology ; S. H. Scuddee, Entomology ; 

 N. L. Brittox, Botany; Heney F. Osboen, General Biology; H. P. Bowditch, 

 Physiology ; J. S. Billings, Hygiene ; J. McKeex Cattell, Psychology ; 

 Daniel G. Brinton, J. W. Powell, Anthropology. 



NEW SERIES. VOLUME I. 

 JANUARY TO JUNE, 1895. 



NEW YORK 



41 East Forty-ninth Street 

 1895 



