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Washington, May 13, 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, expenditures, and condition of the Smithsonian Institution for the year ending June 30, 1906.

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

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Secretary