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Scientific American, Vol. 29, No. 23 (December 1873) (1873)

leaf 3

An illustration from Scientific American, Vol. 29, No. 23 (December 1873), 1873, leaf 3
g epidemics. It is taken moved and a slip of glass, with iron filings, placed on the in the form of sirup. When a patient is attacked with chol- poles of the magnet, K. When the key is pressed, and the era, the sirup should be administered, and a dilute solution glass gently tapped, the filings… … tic communication, this improvement is very useful. Thi perhaps an inch in hight and broad in proportion, surmounts THE TOM THUMB TELEGRAPH.—SHOWING THE MAGNETIC makers fit up offices and buildings with them when de the flask. CURVES. FIG. 2. sired. The device is so simple that any person of…

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