Trip through the Miami of the lakes, and the Wabash Valley--Cross the
grand prairie of Illinois--Revisit the mines--Ascend the
Illinois--Fever--Return through the great lakes--Notice of the
"Trio"--Letter from Professor Silliman--Prospect of an appointment under
government--Loss of the "Walk-in-the-Water"--Geology of Detroit--Murder
of Dr. Madison by a Winnebago Indian.