
          thing about him and his Book.

Yours very Truly,
J Barratt

To Prof. J Torrey

I attempted to make a Thimble Battery some time
ago but did not succeed. There was something
I did not recollect. Do either furnish me with
a draught so that I can make one
or perhaps you can lend me yours
to examine. I can return it any
time.

Prof. Silliman shewed me a very neat
Thimble Battery given him by
Griscom. Were I at N. Haven [New Haven]
I would examine it carefully 
to make one by.  But as may
not be there at present I do not
like to ask him to loan it to me
        