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: 11; Original Publisher: National Academies; Publication date: 1948-01-01; Original Identifier: NAP:16857; Subjects: Marine animals; Marine plants; Paleontology; Juvenile Nonfiction / Animals / Marine Life; Juvenile Nonfiction / Science