Logic; or, The art of thinking : in which besides the common, are contain'd many excellent new rules, very profitable for directing of reason, and acquiring of judgment, in things as well relating to the instruction of a mans self, as of others. In four parts. I. Consisting of reflections upon ideas, or upon the first operation of the mind, which is called apprehension, &c. II. Of considerations of men about proper judgments, &c. III. Of the nature and various kinds of reasoning, &c. IV. Treats of the most profitable method for demonstrating or illustrating any truth, &c. To which is added an index to the whole book. For the excellency of the matter, printed many times in French and Latin, and now for publick good translated into English by several hands.