Appropriations for international exchanges, Smithsonian Institution. Letter from the Secretary of the Treasury, transmitting copy of a communication from the Secretary of the Smithsonian Institution, submitting a paragraph of legislation for inclusion in the deficiency bill, reappropriating the unexpended balances of appropriations for international exchanges, Smithsonian Institution, for the fiscal years 1917 and 1918, and making the same available during the fiscal year 1919.