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. Volume: 8-11; Original Published by: National Academies in 1950-01-01 in 68 pages; Original Identifier: NAP:16858; Subjects: Marine animals; Marine plants; Paleontology; Juvenile Nonfiction / Animals / Marine Life; Juvenile Nonfiction / Science