Improved Butter Worker. Novel Curtain Holder. Cephaiometer. I .41 Electrical Fire Batteries. Vermont Marble. A Large Excavator. The Washington Monument. Railway Building in 1882. The Largest Railroad. How to Stop the Sulphuric A cid. Increasing Use of Tin Plate., scientific american, 1883-01-13

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Improved Butter Worker. Novel Curtain Holder. Cephaiometer. I .41 Electrical Fire Batteries. Vermont Marble. A Large Excavator. The Washington Monument. Railway Building in 1882. The Largest Railroad. How to Stop the Sulphuric A cid. Increasing Use of Tin Plate., scientific american, 1883-01-13

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