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.