'Organum Vera Organum, or an Instrument of Practical Reasoning in the Business of Real Life'; [1] to which will be prefixed, 1. A familiar introduction to the common system of Logic, namely, that of Aristotle and the Schools. 2. A concise and simple, yet full statement of the Aristotelian Logic, with reference annexed to the authors, and the name and page of the work to which each part may be traced, so that it may be at once seen what is Aristotle's, what Porphyry's, what the addition of the Greek Commentators, and what of the Schoolmen. 3. An outline of the History of Logic in general, 1st Chapter. The Origin of Philosophy in general, and of Logic 'speciatim'. 2d Chap. Of the Eleatic and Megaric Logic. 3d Chap. of the Platonic Logic. 4th Chap, of Aristotle, containing a fair account of the "*[Greek: Orhganon]--of which Dr. Reid, in 'Kaimes' Sketches of Man', has given a most false, and not only erroneous, but calumnious statement--in as far as the account had not been anticipated in the second part of my work, namely, the concise and simple, yet full, etc. etc. 5th Chap. A philosophical examination of the truth and of the value of the Aristotelian System of Logic, including all the after-additions to it. 6th Chap. On the characteristic merits and demerits of Aristotle and Plato as philosophers in general, and an attempt to explain the fact of the vast influence of the former during so many ages; and of the influence of Plato's works on the restoration of the Belles Lettres, and on the Reformation. 7th Chap. Raymund Lully. 8th Chap. Peter Ramus. 9th Chap. Lord Bacon, or the Verulamian Logic. both Chap. Examination of the same, and comparison of it with the Logic of Plato (in which I attempt to make it probable that, though considered by Bacon himself as the antithesis and the antidote of Plato, it is 'bona fide' the same, and that Plato has been misunderstood).[2] 10th Chap. Descartes, 11th Chap. Condillac, and a philosophical examination of 'his' logic, 'i.e.' the logic which he basely purloined from Hartley. Then follows my own 'Organum Vera Organum', which consists of a *[Greek: Eustaema] of all 'possible' modes of true, probable, and false reasoning, arranged philosophically, 'i.e.' on a strict analysis of those operations and passions of the mind in which they originate, or by which they act; with one or more striking instances annexed to each, from authors of high estimation, and to each instance of false reasoning, the manner in which the sophistry is to be detected, and the words in which it may be exposed.