LETTER OF TRANSMITTAL. 



SMITHSONIAN INSTITUTION, BUREAU OF ETHNOLOGY, 



Washington, D. C., October 1, 1888. 



SIR : I have the honor to submit herewith my ninth annual 

 report as Director of the Bureau of Ethnology. 



The first part of the report presents an exposition of the 

 operations of the Bureau during the fiscal year 1887- 88; 

 the second part consists of papers on anthropologic subjects, 

 prepared mainly by my collaborators, which illustrate the 

 methods and results of the work of the Bureau. 



T desire to express my thanks for your earnest support and 

 your wise counsel in relation to the work under my charge. 

 I am, with respect, your obedient servant, 



Prof. S. P. LANGLEY, 



Secretary of the Smithsonian Institution. 



