This is an OCR edition without illustrations or index. It may have numerous typos or missing text. However, purchasers can download a free scanned copy of the original rare book from GeneralBooksClub.com. You can also preview excerpts from the book there. Purchasers are also entitled to a free trial membership in the General Books Club where they can select from more than a million books without charge. Original Published by: Longmans, Green, & co. in 1866 in 485 pages; Subjects: Knowledge, Theory of; Causation; Reason; Philosophy / General; Philosophy / Epistemology; Philosophy / History & Surveys / General; Philosophy / History & Surveys / Modern; Philosophy / Movements / Rationalism;