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Scientific American, Vol. 36, No. 10 (1877) (1877)

leaf 4

An illustration from Scientific American, Vol. 36, No. 10 (1877), 1877, leaf 4
ngs, or prepared so as to imi- called the ‘‘Wilkomm,” Fig 11,in white or green glass, tate fine varieties of marble. carefully, it will be found that the spindle bears only upon painted in enamel with armorial bearings, figures of birds and animals, etc. This was the beginning of the famous the… … and thus serves asa guide. It will be seen that, when the Bohemian glass manufacture. TORSION. COHESION. two parts are brought closely together, the friction between komm ceased early in the eighteenth century, but attempts the opposing rings will cause the motion of one shaft to be are now being…

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