242 



REPORT OF NATIONAL MUSEUM, 1904. 



In 1820 Schoolcraft, acting under direction of Governor Lewis Cass, 

 of Michigan, who was himself acting under authority of the then Sec- 

 retary of War, made a trip along the Great Lakes and to the sources 



of the Mississippi)!, the results of which, with general notes on the 

 natural history of the region, were published the year following. 



