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Scientific American, Vol. 37, No. 9 (1877) (1877)

leaf 6

An illustration from Scientific American, Vol. 37, No. 9 (1877), 1877, leaf 6
rrived at the in an eclipse, or they come between us and Jupiter, and water to harden it; after which it groove, a fresh cut was taken by moving the engine so as to they are lost in the stronger light of the planet. must be ground from A to B on all raise the piston the necessary amount. It is… … an engine cylinder. B is the wooden fear of them from that source. Finally, wherever civiliza- the cylinder by means of a few wooden wedges. Thus we rest or fulcrum; OC, the lever scraper tion is, there are rooks and crows.—Letter to Chautauqua ' gee that in this operation the junk ring was made to…

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