BY S. A. MITCHELL AND JOHN NEILSON COLUMBIA UNIVERSITY. Examination of Handwriting. Apparatus With Which the Transit of Mercury Was Photographed. Mercury Nearing the Sun's Edge at 8:27 A. M. Note the Spot Group 100000 Miles in Extent. Mercury Showing as a Nick in the Sun's Limb at 8:48 A. M., scientific american, 1907-11-30

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BY S. A. MITCHELL AND JOHN NEILSON COLUMBIA UNIVERSITY. Examination of Handwriting. Apparatus With Which the Transit of Mercury Was Photographed. Mercury Nearing the Sun's Edge at 8:27 A. M. Note the Spot Group 100000 Miles in Extent. Mercury Showing as a Nick in the Sun's Limb at 8:48 A. M., scientific american, 1907-11-30

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