Method of Restoring the Beauty of Silver Fili gree Ornaments. Retardation of the Earth's Rotation. Putting up Stove'- Wearof Front Driving Wheels of Locomotives. Yopon Trees. The New Thames Tunnel. Important to 0 Men. Deaths In the Mines. Steel In the United States., scientific american, 1870-04-23

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Method of Restoring the Beauty of Silver Fili gree Ornaments. Retardation of the Earth's Rotation. Putting up Stove'- Wearof Front Driving Wheels of Locomotives. Yopon Trees. The New Thames Tunnel. Important to 0 Men. Deaths In the Mines. Steel In the United States., scientific american, 1870-04-23

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