Library, Bureau of Ethnology. 

 VOL. XXXIII. 



JUNE, 1912. 



Established by BENJAMIN SILLIMAN in 1818. 



THE 



AMERICAN 



JOURNAL OF SCIENCE 



Editor: EDWAED S. DANA. 



ASSOCIATE EDITORS 



Professors GEOKGE L. GOODALE, JOHN TEOWBBIDGE, 

 W. G. FAELOW and WM. M. DAVIS, of Cambridge, 



Professors ADDISON E. VEEBILL, HOEACE L. WELLS, 



LOUIS V. PIESSON, HEEBEET E. GEEGOEY 



and HOEACE S. UHLEE, of New Haven, 



Professor HENEY S. WILLIAMS, of Ithaca, 

 Professor JOSEPH S. AMES, of Baltimore, 

 ' Mr. J. S. DILLEE, of Washington. 



FOURTH SERIES 



YOL. XXXIII-[WHOLE NUMBER, CLXXXIII]. 

 No. 198— JUNE, 1912. 





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1912. 



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