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

leaf 4

An illustration from Scientific American, Vol. 50, No. 17 (April 1884), 1884, leaf 4
th, and also in allowing before it is consumed, by admix- the bath to be kept below its ture with about half its volume proper temperature. Only pure of air by means of a meter mixer, lead should be used to obtain so that the total quantify of the full heat for hardening good stored gas… … considerable distance from the new lighthouse and engine 'owned and operated by the St. Louis Wood Preserving Com- made by the National Telephone Company on their trunk house, as well as the light keepers' dwelling houses. In the line between Greenock and Glasgow, of a telephone circuit pany. This…

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