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Scientific American, Vol. 34, No. 7 (1876) (1876)

leaf 5

An illustration from Scientific American, Vol. 34, No. 7 (1876), 1876, leaf 5
undation, In your paper of January 8 is an article on the above sub- touching the knob with a wire or piece of metal. A physio- since Tom was on his entry to the shop greeted with ringing ject. It is very suggestive. Should the electric fluid be used logical effect can be obtained by slightly… … from the same drawings for another, the castings being from of the tongue. It makes no difference from which, A or B, specie payment was resumed, the same patterns. Tom’s price was, as the books of the ! you lead the wire, the spark will appear; and of course, by The length of this kind of…

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