April 03, 1866
To the Senate of the United States:
I transmit herewith a report by the Secretary of War, in compliance with the Senate resolution of the 7th March, 1866, respecting the improvement of the Washington City Canal, to promote the health of the metropolis.
ANDREW JOHNSON.
Andrew Johnson, Special Message Online by Gerhard Peters and John T. Woolley, The American Presidency Project https://www.presidency.ucsb.edu/node/203611