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Scientific American, Vol. 50, No. 17 (1884) (1884)

leaf 4

An illustration from Scientific American, Vol. 50, No. 17 (1884), 1884, leaf 4
thstand the furious gales of cast steel to a very low red—a red that shows only in the tion at Las Vegas of very extensive wood preserving works. to which the rock is exposed, Each gas holder will contain shadow—and then brighten and draw the temper to color, They are to use the Line-Tonnier… … house, as well as the light keepers’ dwelling houses. In the line between Greenock and Glasgow, of a telephone circuit pany. This process was awarded the “gold medal ” at the engine house, in connection with the fog signaling appara- devised by Mr. Smillie. The telephone instruments at each…

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