Elements of Philosophy - Comprising Logic and Ontology, or General Metaphysics #248763

Second: It was judged best, also, for the interests of learn~ ers in general, to omit the discussion of the modes and figures of the syllogism; for, in practice they are not attended to, even by those who actually argue in form, the simple rules of demonstration sufiicing for all practical purposes, and being all that is even really useful in the strictest argumentation. On the other hand, it was deemed expedient to introduce some matters that pertain to branches of Philosophy, whose full treatment is appropriate to another volume; e. G., certain sub jects which strictly belong to Psychology, Cosmology and Natural Theology.