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Scientific American, Vol. 50, No. 5 (February 1884) (1884)

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An illustration from Scientific American, Vol. 50, No. 5 (February 1884), 1884, leaf 0
C^TS^ ■■■ ■■■ *x>-> [Entered at the Post Office of New York, N. Y., as Second f'lass Matter.] A WEEKLY JOURNAL OF PRACTICAL INFORMATION, ART, SCIENCE, MECHANICS, CHEMISTRY, AND MANUFACTURES. [¥3.20 per Annum. NEW YORK, FEBRUARY 2, 1884. Vol. 1..—No. 5.1 L [POSTAGE prepaid.] Lnew sebies.] J … links working round knife edges. The mass, M, is the nature and magnitude of the motions in an earth- THE EARTHQUAKE RECORDER. considerably further from the knife edge than the quake. In the light of recent events this paper has a spring, S, the reason for which is that a moderately special…

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