narrative--Journal of it--Preparation for a scientific account of the
observations.


CHAPTER VI.

Reception by the country on my return--Reasons for publishing my
narrative without my reports for a digested scientific account of the
expedition--Delays interposed to this--Correspondents--Locality of
strontian--Letter from Dr. Mitchell--Report on the copper mines of Lake
Superior--Theoretical geology--Indian symbols--Scientific
subjects--Complete the publication of my work--Its reception by the
press and the public--Effects on my mind--Receive the appointment of
Secretary to the Indian Commission at Chicago--Result of the expedition,
as shown by a letter of Dr. Mitchell to General Cass.


CHAPTER VII.

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.


CHAPTER VIII.

New-Yearing--A prospect opened--Poem of Ontwa--Indian biography--Fossil