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Scientific American, Vol. 40, No. 13 (March 1879) (1879)

leaf 6

An illustration from Scientific American, Vol. 40, No. 13 (March 1879), 1879, leaf 6
nding pen, the receiving pen controlled by the sidelong ranges of the stylus) would require to vary continu- m < > ) m • united movements of the needles will trace out a close copy ALUMINUM. ously in accordance with the range to be transmitted. of the original writing. We give on another page a… … THE COWPER WRITING TELEGRAPH. passes, etc. The ranged for this German navy is purpose. P is supplied throughout with aluminum instruments. As a the writing style, which is held in trie writer's hand in the or- The receiving pen is a fine glass siphon, drawing off ani- proof of the superiority of…

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