Library, Bureau of Ethnology. 

 VOL. XXXIII. 



MARCH, 1912. 



Established by BENJAMIN SILLIMAN in 1818. 



THE 



AMERICAN 



JOURNAL OF SCIENCE 



Editor: EDWARD S. DANA. 



ASSOCIATE EDITORS 



Professors GEORGE L. GOODALE, JOHN TROWBRIDGE, 

 W. G. FARLOW and WI. M. DAVIS, of Cambridge, 



Professors ADDISON E. VERRILL, HORACE L. WELLS, 



LOUIS V. PIRSSON, HERBERT E. GREGORY 



and HORACE S. ITHLER, of New Haven, 



Professor HENRY S. WILLIAMS, of Ithaca, 



Professor JOSEPH S. AMES, of Baltimore, 



Mr. J. S. DILLER, of Washington. 



FOURTH SERIES 

 YOL. XXXIII-[WHOLE NUMBER, CLXXXIIL] 

 No. 195— MARCH, 1912. 



NEW HAVEN, CONNECTICUT! tyARiai, 



\ Jfr 



*# %8<!\ro 



THE TUTTLE, MOREHOUSE & TAYLOR CO., PRINTERS, 123 TEMPLE STREET. 



'*& 



Published monthly. Six dollars per year, in advance. $6.40 to countries in the 

 Postal Union ; $6.25 to Canada. Eemittances should be made either by money orders, 

 registered letters, or bank checks (preferably on New York banks). 



