156

has served its end; why should it be allowed now to
hamper our endeavors to make methodentic practically
useful? But while the justice of this must be admitted, it is
also to be borne in mind that there is a purely logical
doctrine of how discovery must take place, which,
however great or little is its importance, it is my
plain task and duty here to explore. In addition
to this, there may be a pcychological account of the
matter of the atmost importance and ever do exten-
sive. With this, it is not my business here to meddle; at
though I may here and there make such use of it as
I can in aid of my own doctrine.

Time was when a Theorem could constitute a consi-
derable contribution to mathematical science. But
now new Theorems are turned out wholesale. A single
[treatise?] will contain hundreds of them. Nowadays methods