APPENDIX. 



1. DEPARTMENTAL REPORTS. 



Detroit, September 14, 1820. 



Sir: I am tappj to be enabled to state to you tbat I readied 

 this place four days since, ■with some of the gentlemen who accom- 

 panied me on my late tour, after a very fortunate journey of four 

 thousand miles, and an accomplishment, without any adverse 

 accident, of every object intrusted to me. The party divided at 

 Green Bay, with a view to circumnavigate Lake Michigan, and I 

 trust they may all arrive here in the course of a week. 



As soon as possible, I ^ shall transmit to you a detailed report 

 upon the subject. 



Since my arrival, I have learned that Mr. Ellicott, professor of 

 mathematics, at the military academy, is dead, I cannot but hope 

 that the ofl&ce will not be filled until the return of Captain Dou- 

 glass. I do not know whether such an appointment would suit 

 him ; but from my knowledge of his views, feelings, and pursuits, 

 I presume it would. And an intimate acquaintance with him 

 during my tour enables me to say that in every requisite qualifi- 

 cation, as far as I can judge, I have never found a man who is his 

 superior. His zeal, talents, and acquirements are of the first 

 order, and I am much deceived if he do not soon take a distin- 

 guished rank among the most scientific men in our country. His 

 situation as an assistant professor to Colonel Mansfield, and his 

 connection with the family of Mr. Ellicott, furnish additional 

 reasons why he should receive this appointment. 

 Very respectfully, sir, 



I have the honor to be 



Your obedient servant, 



LEWIS CASS. 



Hon. J. C. Calhoun, Secretary of War. 



