LETTER 



FROM THE 



SECRETARY OF THE SMITHSONIAN LXSTITLTION 



ACCOMPANYING 



The Annual Report of th<- Board of Rec/tnt-s of tJie I nstitutiou for the 

 year ending June 30, 1906. 



S.MiTiisoNiAX Institution, 



Washington. M<nj IS. 1907. 

 To the Congress of the United States: 



In accordance with .section 5593 of the Revised Statutes of the 

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

 to submit to Congress the Annual Report of the operations, expendi- 

 tures, and condition of the Smithsonian Institution for the year 

 ending June 30, 1906. 



I have the honor to be. very respectfully, your obedient servant. 



Chas. D. AValcott. 



Secretary. 



