PEPER OF TRANSMITTAL. 
SmirHsonian 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. 
I 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, 
Yarn 
Prof. S. P. LANGLEY, 
Secretary of the Smithsonian Institution. 
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