Dp a} i 1 hee per Annum. Vol. XXI.=--No. ht: NEW YORK, AUGUST 21, 1869. [IN ADVANCE] [NEW SERIES.) Hydrocarbon Oils. The larger engraving is a perspective view of an improved apparatus equally applicable to dwelling houses, factories, able for private dwellings, railway cars, locomotives, steam-… … trips a small valve, which admits more of tion of the liquid contained in an elastic shell, MAXIM’S PATENT GAS MACHINE. the hot vapor, and again rises. then through the coil in the other compart- ment, and out. As the liquid became heated in the clastic shell, As the vapor escapes from the retort…
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