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Scientific American, Vol. 80, No. 3 (1899) (1899)

leaf 4

An illustration from Scientific American, Vol. 80, No. 3 (1899), 1899, leaf 4
fit. | in ing up. 5-inch gun......... 3.660 | 12°2 | 12°5 | 45 | 1,880 | 1,045 | 6°2 Rumsey on the Potomac, and later tried in the pres- ——— oe 7-inch howitzer... ... ... 3,710 | 85 | 10°0 | 105 |1,085| 857| 3°8 ence of Washington and other notables. In 1786 John A CURIOUS land subsidence took… … Patrick Miller, when engaged ARSENAL. in G eat Bii- in active firing. tain, built a The carriage of steamboat in 1786 or 1787, and Symmington was one of the howitzer is made of two ‘‘cheeks” of 44-inch steel his partners in 1788. In France, the Count d’Auxiron, London main road. The road was built…

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