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Scientific American, Vol. 8, No. 13 (1863) (1863)

leaf 7

An illustration from Scientific American, Vol. 8, No. 13 (1863), 1863, leaf 7
hich they move; between the com- afforded by the frame, elevates the excavators so bination of centrifugal force and this peculiarity the In nearly every motive-power it is essential that that they no longer enter, the soil. This machine governor should possess extreme sensitiveness when appears to… … been inaugurated by using steam for the fire-engines, of our inventive readers take pity on the navy, and and it only remains to extend the principle to the show them how to get rid of such obstructions ? Exports OF PeTroveum.—From the first of January to the 5th inst., 4,257,999 gallons of…

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