
          I have been told that the Carbonate of Barytes is a most rare
mineral & sells very dear in Europe.  We have here a mine of it &
[crossed out:also of] often mixed with Carbonate of Lead.  Pray would it be a 
money speculation to collect it & send a Ton of it to Europe?  what
do you think it is worth? & how much with you.  I have been positively
told that it has been sold as much as silver ore in Europe.

A pupil of mine is become a zealous entomologist & has collected
this Spring & Summer about 11500 insects belongg [belonging] to about 600
species, many are new I think.  But I have no work to study
them upon, except Latreille's genera etc.  Is it possible that there
should be no species insetorum as yet, and no Fauna Americana.
Pray turn your attention that way, and give us an Epitome of
the known American Insects.  That first step will lead afterward
to great discoveries.  I have almost a mind to describe all our 
Insects as new.  Since it is impossible to ascertain which are not.

Prof. Silliman has behaved as a Sillyman with me (that is between
us).  I complained that he did not insert a single one of my tracts in
his N. [number] 5 having 18 on hand, and he has called my just complaint
a recrimination & sent me back [crossed out:as of ] [inserted:all] my tracts (the 3 last sent
him through yr means excepted).  These Yankees are very ticklish!
It would be hard for me to be [crossed out:shu] excluded forever from [crossed out:the] [added:his] journal.
I must make it up & pray do your best in my behalf.  It is hard
to be compelled to send my discoveries 500 miles off for publication.
I hope he does not behave so with you, but you do not crowd him with 
discoveries.  I verily believe he was bewildered with mine.  I cannot
yet think that he is jealous of me as the Philadelphians are because
I can do more than them, and was not born on the banks of the Schuilkill.

I thank you for all your news which I notice with pleasure.  Do tell
me every thing of note.  I experience somewhat the same difficulty
with our W. Review.  I write for them more than they wish to publish.
I am going to establish Next Year a new quarterly journal with 
some friends called the Western Minerva or Annals of Knowledge
more of it hereafter.  If I had 6 such journals they would not be
enough for me.  It is a pity the Lyceum will not begin their Annals
I have sent this year 20 memoirs for publication to Europe.  I 
have just finished a very interesting one on the smell of plants or
vegetable odors, which I divide in 2 classes, 6 orders & 130 genera!
to which I reduce about 5 or 600 American & European plants.
        