Unrtep States Natronat Museum, 
Unver DirecrTion OF THE SMITHSONIAN INsTITUTION, 
Washington, D. C., September 30, 1921. 
Str: I have the honor to submit herewith a report upon the present 
condition of the United States National Museum and upon the work 
accomplished in its various departments during the fiscal year ending 
June 30, 1921. 
Very respectfully, 
WILuiAM DEC. RavENEL, 
Administrative Assistant to the Secretary, 
In charge of the United States National Musewm. 
Dr. Cuartes D. Watcort, 
Secretary, Smithsonian [nstitution. 
