Science: Underwater Prospects

An up-to-date divining rod—for oil—was announced last week by California's Union Oil Co. It was a scheme for finding oil in shallow coastal waters: a steel diving chamber, which Union Oil plans to use off the Louisiana coast this month.

The chamber is a steel cylinder made of half-inch galvanized plate. Three feet in diameter and five feet high, it looks like a fat hot-water tank with an escape hatch. In addition to one cramped geologist sitting on a cushioned, red-leather seat, the chamber carries emergency oxygen, communication equipment and testing apparatus. The cylinder will withstand the pressure at a depth of...

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