
          specimen, I should like to have it again.
But I begin to be sensible I am occupying too much of 
your time. And I have said nothing of the many 
other interesting topicks presented in your letter. In regard
to the lichens I shall only say that I feel quite out of
place among the viri illustres with which you have asso-
ciated me in the crpyotgamick Flora; and almost fear
to undertake what must be done so well. But I
devote this winter entirely to the lichens. No less than
nine bundles - the acquisitions of the past season are await-
ing examination. And I shall go over again the whole of
my collection. I have Schaerer, Ach. Meth., + Prodr., Spren-
gle, Wahlenberg, Hlasey, + Hooker: & I have sent fr
various other books - but with the same invariable
want of success which has always met me in sending
for the books on foreign catalogues. I never yet recieved
a single volume, & yet the booksellers transmit the orders 
(as I understand) to Longman & co.
The Empetrum rubrum must be very intersting: & espe-
cially as it gives us 3 species of a genus so small.
The Asagraea I saw in the Hort. Reg. - that is the name 
& description. I am very glad Dr. Gray has been able 
to deprive it of its barbarous name. I was afraid it
would have to stand - unless indeed it was judged by
the 223d canon of the Phil Bot. or any other canon of good
tate: - on the ground of priority. But it seems to me

        