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Scientific American, Vol. 9, No. 20 (November 1863) (1863)

leaf 3

An illustration from Scientific American, Vol. 9, No. 20 (November 1863), 1863, leaf 3
stage or another ; each movement turned in the lathe have also been milled so that a series of sharp angles or cutters which eat away of the reel throws up a finished barrel, which is re- they are sharp and clearly defined as to their edges, the tough metal as quickly as one would cut old moved by… … fully formed in every respect. We read in heathen burnished gloss with a little fine emery paper applied The lumps of iron are thus quickly trimmed off story that Cadmus sowed serpents' teeth, from which by hand. In all of these operations the manual and the barrel begins to assume shape and form.…

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