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: Randolph in 1875 in 388 pages; Subjects: Knowledge, Theory of; Senses and sensation; Philosophy, Modern; Positivism; Philosophy, English; History / General; Juvenile Nonfiction / Concepts / Sense & Sensation; Philosophy / General; Philosophy / Epistemology; Philosophy / History & Surveys / General; Philosophy / History & Surveys / Modern; Philosophy / Religious; Religion / Philosophy;