Shot-Gun Barrels. A Reason for Protection. 42. Discharge of Water lInder Different Heads. 49 4. Eccentric and Crank Combined., scientific american, 1869-02-20

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Shot-Gun Barrels. A Reason for Protection. 42. Discharge of Water lInder Different Heads. 49 4. Eccentric and Crank Combined., scientific american, 1869-02-20

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