
          Wms. Coll. Nov. 2nd 1825

My Dear Sir,

I have been trying to get time to write you
these ten days - but have been unable till now. Your
letter lately recd. presents new inducements for me to be
give a letter. After my return from the [Buh?] Med. Instu.
where I gave nearly a hundred lectures to a class of above
100 students, I found too much to engage my hands & waste
my strength, to allow me to touch correspondence.

If you will analyze that yellow Cummintanite, I sent, which is
the true, whatever the other is, taking care after pulverizing
it a little to use a magnet to take out the Mag. Ox. of
Iron, which & only which is with it, you will find what it
is. The analysis to be sure, will not tell whether it is
Tremolite or asbestos or Hornblend for all those are
Amphibole of [?]. The truth is, it has not the characters
of either of these but in hardness, action?of blowpipe, etc.
approaches Epidote. The analysis may show it to
be a distinct Minl. from either but can not tell
which of those others.

Now, allow me to say that
I am not going to have a quarrel with you about
Carices, or any other thing else. I had rather burn up
the whole Caricog. & my plants & yours too. Yet
I can not think as you do _ & wonder that a man
of sense can maintain the points you do. Yet, I know it is
the lot of our poor human nature to think & do stranger things,
& often in entire honesty too. And I ought to know enough
of my own participation in frailty, to make allowances for others
while I need it for myself. I shall regret to differ from you so,
as to interrupt a friendship, much increased on my part by the visit
to you but differ I must on the grand topic.

By the way I did
not say you would not allow any discoveries but your own nor
to that [amount/account]. I made no charge, tho' I gave a caution. It is too
plain to be doubted that it makes a great diff. when a thing comes
from among many of our countrymen. It is this thing which makes
the ill feeling between N.Y. & Phila. or rather its inhabitants. Now
I think a caution on this point is no proof of there being ground for
the charge in an individual case & is not a charge in itself. But if I   
        