LETTER OE TRANSMITTAL 



Smithsonian Institution, Bureau ok Ethnology, 



WmUngton, D. C, July 1, is!)0. 

 Sir: I liave the lionor to submit my Eleventh Annual Report 

 as Director of the Bureau of Ethnology. 



Tlie first part presents an explanation of tlic plan and opera- 

 tions of the Bureau; the second consists of a series of papers 

 on anthropologic subjects, prepared by my assistants to illus- 

 trate the methods and results of the work of the Bureau. 



Allow me to expi'ess m\ ajjpreciation of your earnest support 

 and ^ our wise counsel relating to the work under my charge. 

 I am, with respect, yom- obedient servant. 



Hon. S. r. Langlky, 



Secretary of the Sndtlisoniati litsfifiition. 



