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. Original Publisher: San Francisco: H. H. Bancroft and company; Publication date: 1861; Subjects: Mineral industries; Sonora (Mexico: State); Mines and mineral resources; Sonora, Mexico (State); History / Latin America / Mexico; Technology