ADVERTISEMENT, 



This Memoir was referred for examination to Dr. James C. Welling, LL.D., 

 President of Colnmbian University, Washington, D. C, and to Dr. George A. 

 Otis, of the Surgeon General's Office, U. S. Army. 



Their report states that " the Memoir is a valuable contribution to our general 

 knowledge of anthropology and archaeology, while yielding besides a special con- 

 tingent to the ethnology of the North American continent. Under the latter 

 of these heads it raises some questions which seem of great significance, and 

 which it is to be hoped will lead to further investigation." 



JOSEPH HENRY, 



Secretary S. I. 



Smithsonian Institution, 



Washington, July, 1874 



iii) 



