St. Louis, Octob. 10*^ 1848. 



My Dear Sir, 



Your letters of Aug. 30* & Sept. 4* have been received in due time, and were,^ 

 with their contents - very acceptable. <,\- v ^ - 



The Chp r ca I have compared agUC-^with my European specimen and 



have now no doubt that it is Chor^ - .v^ck. ^ as I said before, ^^-of^. — - * ' ""'^ 



Is much smaller and more compact in all its parts. I have an only and poor specimen an I 

 would with pleasure send you one. 



Do you find any other Cha> ^> <. in your neighborhood? If so, I would like to 

 obtain specimens for my friend. Prof Braun, who has made a particular study of this 

 branch. 



The green globular . substance is unknown to me: it appears to be 

 organized and may be a fresh water Alga. The best, and I think the only person in the 

 United States who probably could class it is so far as I know. Prof Bailey at West Pomt, 

 who lately has commenced the study of this branch of botany. 



I include a specimen of Ch£i_l__x as you desire. 



If you desire to get a small of Cha - - I will with pleasure send you, 



such as I have duplicates of, in any manner you may indicate. 



Very truly 



D. Cooley, Esq. 

 Washington, Mich. 



Note at the bottom in a different hand: 



yours 



G. Engelmann 



Received in this a l^!!!!:::^ of Carex arida ["^l which appears the same as Carex 

 Muskingumensis S- .-<^-v ^ which I have before. 



u u u u ig 



1 



cm 



7 8 9 10 

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Missouri 

 Botanical 

 Garden 



