December 10, 1857
To the Senate and House of Representatives:
I transmit a copy of a letter of the 30th of May last from the commissioner of the United States in China, and of the decree and regulation which accompanied it, for such revision thereof as Congress may deem expedient, pursuant to the sixth section of the act approved the 11th of August, 1848.
JAMES BUCHANAN.
James Buchanan, Message to Congress Related to China Online by Gerhard Peters and John T. Woolley, The American Presidency Project https://www.presidency.ucsb.edu/node/202440