The book has no 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 the publisher's website (GeneralBooksClub.com). You can also preview excerpts of 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. Volume: 2; Original Publisher: J. Dobson; Publication date: 1826; Subjects: Science; Technology; Patents; Law / Intellectual Property / General; Law / Intellectual Property / Patent; Science / General; Science / History; Science / Study