Novemser 10, 1877] Scientific American. 201 A writer in Appleton’s Journal to rest upon. It is claimed that the … ravines on high trestle work bridges, struction is of iron and steel except the burrstones. Therunner stone is Fig. 1—HARRISON’S NEW STANDARD GRINDING MILL. and the wood is floated through them over another stage of its jour- held as firmly to the spindle as a tainty as to whether security de-…
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