There are two other circumstances still more material; viz. 1. The parties whose interest is affected by the falsehood: 2. The point or article in which that interest is affected. These circumstances, however, enter not into the composition of the generical character. Their use is, as we shall see, to characterize the several species of each genus. See B. I. tit. [Falsehoods].

IPML Chapter 16 Section 2 Part 3