Test of Water 'Wheels at Lowell. Something about Opals. Our Rotten and Inefficient Navy--A Cheap and Tried Plan for Vessels of War. 8, scientific american, 1872-02-24

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Test of Water 'Wheels at Lowell. Something about Opals. Our Rotten and Inefficient Navy--A Cheap and Tried Plan for Vessels of War. 8, scientific american, 1872-02-24

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