42 - TWELFTH REPORT. 



in 1820 tbe shore features of Lake St. Clair, the west side of Lake 

 Huron, both sides of Lake Michigan, and part of the soutli shore of Lake 

 Superior, are described with considerable accuracy. The narrative also 

 reviews the explorations by Marquette, Joliet, LaSalle, Hennepin, La- 

 Hontan, and Charlevoix in the Great Lakes region. 

 Ann Arbor, April 1!)10. 



