The knowledge of the murder is here claimed to be that of a contingent event. And hence it is claimed to be another kind of knowledge. But to examine this. It is readily admitted that the murder does not come under the classification of things certain or decreed, because it will not take place. But it does come under the head of things possible, and between it and all other possible things no distinction can be made.
All possible things are contingent until made certain by a decree.
Every possible thing is only possible in connection with the circumstances under which it can happen. There is therefore no distinction between possible things and contingent things, and consequently no third class is to be added. The kind of knowledge which he thus speaks of as contingent is stated by Knapp to be what is called Scientia Media. It is one form only, in which Scientia Media is presented by those who maintain it. Another form of Scientia Media is, however held by some.