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Scientific American, Vol. 61, No. 20 (1889) (1889)

leaf 15

An illustration from Scientific American, Vol. 61, No. 20 (1889), 1889, leaf 15
any subscriber in the United States advertises in the SCIENTIFIC AMERICAN. And do not or Canada, on receipt of three dollurs by the pub- let the advertising agent intluence you to substitute some other paper tor the SCIENTIFIC AMERICAN, when lishers; six monthks, $1.50; three months, $1.00. E… … of engravings, many of which are taken from foreign Scientific Book (jatalogue papers, and accompanied with translated descriptions. THE ScleNnTIFIC AMERICAN SUPPLEMENT is published THE COPYING PAD.—HOW TO MAKE THEAMERIGAN BELL TELEPHONE C0, weekly, and includes a very wide rangeof contents. It and…

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