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Scientific American, Vol. 37, No. 18 (1877) (1877)
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aft is rotated by the bevel gearing United Kingdom has been replaced by underground wires shown, which is revolved by hand by means of the crank. Se ee during the past year. At the time of the transfer of the Mountain and Balloon Ascents, On the bevel pinion is a feather which enters a keyway on… … well-defined edge, and is densest nearest to previously accustomed themselves to life at Mars. Small stars were seen through it. high altitudes. Aeronauts, anyhow, have © 1877 SCIENTIFIC AMERICAN, INCInternet Archive · Public domain (published before 1931). Free to use for anything.
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