July 16, 1798
The President of the United States to ___________, Senator for the State of ___________ :
Certain matters touching the public good requiring that the session of the Senate for executive business should be continued, and that the members thereof should convene on Tuesday, the 17th day of July instant, you are desired to attend at the Senate Chamber, in Philadelphia, on that day, at 10 o'clock in the forenoon, then and there to receive and deliberate on such communications as shall be made to you on my part.
JOHN ADAMS.
John Adams, Proclamation—Convening an Extra Session of the United States Senate Online by Gerhard Peters and John T. Woolley, The American Presidency Project https://www.presidency.ucsb.edu/node/203217