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Scientific American, Vol. 53, No. 6 (August 1885) (1885)

leaf 3

An illustration from Scientific American, Vol. 53, No. 6 (August 1885), 1885, leaf 3
a hollow of it. to another. The powder of cork is met with in trade under the A number of wires equal to that of the springs estab- name of liegine, and is used in place of lycopodium The timbre, or the number, the pitch, and the inten- lishes a communication of the latter with the same for healing… … Fig. 2.-WEBER'S ELECTRIC SIREN. unbarked until it is twenty or thirty years old. A young tree will give six to eleven pounds of cork, while an old depends upon the constancy of the pile, upon the per- tree will yield 250 to 350 pounds. that carries the whole. A brush spring causes the cur- fection…

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