Science: Plutonic Laboratories

Harvard's peripatetic Harlow Shapley (TIME, Dec. 2) addressed the American Geographical Society in Manhattan last week. Usually he has his keen intelligence among the stars. For last week's occasion he directed it into the earth. He proposed, as has many another with less public attention, to establish scientific laboratories deep beneath the land surface. The deepest man-made hole in the world is in Orange County, Cal., 8,201 ft. deep. The deepest mine in the world is St. John del Rey in the stage of Minas Geraes, Brazil, about 7,200 ft. down, where toiling...

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