
          my opinion to be distinguished from Pol. 
calcareum [Polypodium calcareum]. Your Pteris peronninana  of [Sfmang.?] is
surely no Pteris at all; but barren fronds of 
a Danea [Danaea], either nodosa [Danaea nodosa] or alata [Danaea alata]: & your other
"Pteris allied to peronniana" is I think another
Danaea.

Your Asarum Canadense is quite distinct from 
our As. europaeum [Asarum europaeum].

I wish I could send you a copy of my Museologia
Britannica: but it has been long out of 
print & no copies are to be had. I am now engaged 
in preparing a second edition. You have 
probably not seen a memoir I have published 
on Buxbaumia & Diphyscium. It forms a 
part of the continuation of the Fl. [Flora] Londinensis
& I take the liberty of sending you 
a copy.

I shall hope soon to have the pleasure of 
again receiving some communications from you.
You will not unfrequently find opportunities
by vessels coming direct to Glasgow or some
part of the Clyde, & then if plants are sent to 
me addressed to the Royal Botanic Garden of 
Glasgow, I have on order from our Government

        