Paperback. Condition: Good. First Edition. Features: Daniel Denison Streeter, FN 1913; Amos Burg, FN 1931; U.S. Caving Team Attains Record Depth; Searching for Aloe plants in Africa; Kansas City Museum - Osage culture exhibits; The Dog that helped win the West - Scannon, the Newfoundland dog who accompanied Lewis and Clark; Bimini Marine-Archeology Expedition - underwater formations considered artificial; Rowing across the Atlantic - Curtis and Kathleen Saville in their Excalibur; Exploration under the Arctic Ice - submarine surveyors of the polar region; First U.S. Atlantic Route Flight - William M. Masland was the navigator on the Pan American Sikorsky S-42 that made the first route survey across the Atlantic Ocean in 1937. Average wear. Unmarked. A sound copy.