The Deep-Sea Floor

For budding oceanographers, The Deep-Sea Floor by Sneed B. Collard III, illus. by Gregory Wenzel, sheds light on the denizens of the deep and presents the history of ocean exploration, from hundreds of years ago, when many thought the ocean was bottomless, to the present, where scientists routinely utilize ""deep-sea submersibles"" (or vehicles) to troll the depths.