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Scientific American, Vol. 26, No. 11 (1872) (1872)

leaf 7

An illustration from Scientific American, Vol. 26, No. 11 (1872), 1872, leaf 7
Nevada, which are -It occupies no floor space,and when not described as almost perfectly round, the in use can be arranged to occupy but majority of them as large as a walnut, very little space on the wall to which it and of an irony nature. When dia- is attached. tributed about upon the floor,… … in’a region that is. comparatively level, are two pins placed at a suitable dis- and is nothing but bare rock. Scattered tance from each other, on opposite sides over this barren region are little basins, of the bar. The bars, when not in use. from a foot to a rod in diameter, and it may be taken…

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