
          still a young man. I promised him that you would send
 him a collection of specimens by the first ship for St. Pete'g [Petersburg] 
 and he engaged to make a return in Siberian Plants
 which you know are particularly interesting to us. I rely
 upon you to redeem my promise and will insure that you 
 will not [repent?] it. His address is "To Mr. J.D. Prescott
 at Mess'rs [Cattley?] & Forrester's St. Petersburg, for Dr. [Freidrich Ernst Ludwig] Fischer"


 Young [Adolphe-Theodore] Brongniart too, who seems likely to become
 as distinguished as his father would be glad to exchange
 with you particularly in Cryptogamia. His address is
 "Mess. Andr� et Coltier, au Havre, Pour M. Adolfe
 Brongniart � Paris." It is necessary to send first 
 for we have a bad character in Europe as correspondents
 and with some reason.


 I have had a chronic inflammation in my left knee
 for nearly four months past which has confined me a
 great deal to the house. Stevenson has at last cured me
 but it has interrupted all my schemes of getting acquainted 
 with the [?] here, which three months ago I could easily
 have done if this had not prevented me. In fact I might
 almost as well have been in New York as Paris, for two months.   
        