LETTER 



FROM THE 



SECRETARY OF THE SMITHSONIAN INSTITUTION, 



SUBMITTING 



THE ANNUAL REPORT OF THE BOARD OF REGENTS OF THE 

 INSTITUTION FOR THE YEAR ENDING JUNE 30, 1917. 



Smithsonian Institution, 

 Washington^ June 30, 1918. 

 To the Congress of the United Sto.tes : 



In accordance with section 5593 of the Eevised Statutes of the 

 United States, I have the honor, in behalf of the Board of Kegents, 

 to submit to Congress the annual report of the operations, expendi- 

 tures, and condition of the Smithsonian Institution for the year end- 

 ing June 30, 1917. I have the honor to be, 



Very respectfully, your obedient servant, 



Charles D. Walcott, Secretary. 



