San Francisco: Harr Wagner Publishing Co, (1937.). Hardcover first edition - Book written for use in elementary schools. A title in the Western Nature Science Series. Contains 9 units: Sea Shells & Their Owners; Strange Mollusks; The Starfishes & Their Relatives; The Crusty Animals; Sea Flowers, Rafts & Jellyfishes; Worms, Corals, & Sponges; Shore Birds; Sea Lions, Tidepool Fishes, & Other Chordates; and, The Seaweeds. Illustrated throughout with photographs and drawings. List of other books, Index of text and illustrations. xxiv, 271 pp.