
          Irving House
Washington: July 31, 1850.

Dear Sir:

From your reputation
in Botany, I take the liberty of
asking you for a description and
some little account of the plant 
that grows in Lower California
used by the indians for poisoning
their arrows, and putting in water
for the destruction of animals, as 
is said. Perhaps you can refer 
me to some reliable authority who
has described it. I should be
glad to have this information so
soon as you have leisure to give
it to me, and for which I shall
be thankful.

I have added three
        