
          St Louis Nov. 29th 1847

My Dear Doctor

allow me to introduce
to your acquaintance my friend Dr A.
Wislizenus, who is already known to
you by former letters from me as the
explorer of the natural history of
New Mexico and Chihuahua. Though he
is no botanist or chemist in the strict
sense of the word, still he is an accurate
observer and will be able to give you
much interesting information about the
botanical and mineralogical riches
of the countries traversed by him.

Any favor extended to him will
be gratefully acknowledged by

your friend and servant

George Englemann

Prof John Torrey

Princeton NJ
        