Height and Position of Mount St. Elias. The Simplon Tunnel. Congress 24 session Ifs. Doc. No. 146 Senate 1889. L C. Russell. Fireproof Doors, scientific american, 1892-04-16

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Height and Position of Mount St. Elias. The Simplon Tunnel. Congress 24 session Ifs. Doc. No. 146 Senate 1889. L C. Russell. Fireproof Doors, scientific american, 1892-04-16

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