35

Ladies and Gentlemen:

The alpha part of graphs, of
which I gave you a tolerably full
account, although without illustrating
the use of it, since there was no time
for that, is able to deal with represent no
reasonings except those which turn
upon the logical relations of general
terms.

The beta part of which I was able
to give you nothing more than a
few scraps has been thoroughly
elaborated. It is able to handle with
facility and dispatch reasonings of
a very intricate kind, and propositions