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: 1; Publication date: 1893; Description: Vols. 1-2 include a "Syntopical index to current electrical literature."; Subjects: Electric engineering; Telephone; Technology