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Scientific American, Vol. 30, No. 16 (1874) (1874)

leaf 8

An illustration from Scientific American, Vol. 30, No. 16 (1874), 1874, leaf 8
s before the sun, how frequently, and the exact cessitated, and the annexed engravings and following de- paper. A varnish formed of Canadian balsam dissolved in time they take in making the transit. This consists of a scription, condensed from Engineering, explains how the ope- narrow band of paper… … blank, the length of which shows the Senet SS S i, ate, three courses of sandstone masonry 4YGh time during which the sun was Le laid in cement, n n, Fig. 1, each block screened. Asingle band of paper will weighing from 16 to19tuns. This last for a month or more, as the hour neh, change of wood and…

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