
          I thought I had to decline it, though I should have
liked to have gone as such!

You ask, what is to be done with Gregg's plants?  Would
it not be best to put all those collections together
which have been made in Mexico during the war
and which can be obtained; Gregg's Wislizenus'
Halstead, [?etc} and distribute them, as those of the
Exploring Expedition are to be distributed, for description?

I dont know though whether that would be feasible,
and whether it could be done well, without comparing
european herbaria, where so much of the Mexican
flora is to be found.  It would add a very
good chapter to our conquests in Mexico!

I also receive Hooker's Journal irregularly
and very late.  I am astonished that Geyer
collected so few new things.

I remain Dear Sir, very truly

Yours

G Engelmann

Prof J Torrey

Princeton NJ
        