
          Philadelphia April 21th 1832.


 Private


 Dear Sir, Your favour of March 10th had been duly
 received and communicated to the College of Pharmacy; but your
 valuable edition of Lindley's introduction to the Natural System
 of botany has not yet come to hand. For this excellent work
 the Botanists of this Country are highly indebted to you; but they
 expect still more from your talents  and superior knowledge
 in this branch of the natural Sciences, that is a complete Flora
 of the United. States, arranged according to their system. I hope,
 before long, to see such a book in my library by the side of
 the above, a copy of which I was happy to procure the very
 day it first appeared in this city.


 The present, sir, is intended  to propose to you an
 exchange of European plants for american specimens. I have
 just received  from a friend a splendid collection of plants of the
 West & South of France, numbering about 550 genera &
 1800 species with many duplicates. The family Gramineae is,
 in particular, very rich. Should you feel disposed to accept
 my proposal, I will, by the first opportunity, send you my
 catalogue.


 Yours very respectfully,
 E. [Elias] Durand
        