
          Washington City March 23rd 1845

My Dear Sir,

I am delighted to know that you
are at Princeton. The letters you have
sent since you arrived there have been
of great value to me, many of the plants
you have determined were characteristic &
very many are interesting. Purshia trio,
for instance, extends over a great portion
of the country west of the Rocky Mts.
Fremontia vermicularis with other salvia
shrubs is [cross out: oth] very abundant & in many places
highly characteristic. The leaves of this plant
have a very salty taste which perhaps
you do not know. I think that the
shrubs of that country, are very great in
variety & form probably the most interesting
portion of the plants. Will you not 
give to the Pinus Piñon the name of
your botanical friends. Will you
not designate the acacia by some
name. No. 509 18hh, is a
plant, the root of which is extensively
used by the indians as an article of
        