Many are known—Telegraph Plateau between Newfoundland and Ireland whereupon 14 of 21 North Atlantic cables lie, Fleming Deep (5½ mi. down) off Japan and the Philippines, Merriam Ridge off Chile ...
Summer: The U.S.S. Dolphin conducts soundings along the 1600-mile route between Newfoundland and Ireland, discovering that a smooth plateau (soon dubbed the "telegraph plateau") stretches across ...
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