Below Fort Massac, IL The expedition moves three miles down the Ohio. Lewis experiences malaria-like symptoms.
Leaving Fort Massac
left Massac this evening about five oclock— descended about three miles and encamped on the S. E. shore raind very hard in the eving
—Meriwether Lewis
Violent Ague
I was siezed with a violent ague which continued about four hours and as is usual was succeeded by a feever which however fortunately abated in some measure by sunrise the next morning,
—Meriwether Lewis