f air in hy- A two Inch main pipe, distributing right and left and as near burner each. In 35 days of ten hours each, eight gallons of ma- drocarbon vapor. Paradoxical as it may seem at first, there terial per lamp were consumed, or sixty four gallons in all. the center as possible, the inventor… … De GUINON'S SYSTEM OF GAS LIGHTING. burner, and the invention reduces itself simply to the means over a whole city. This may seem extraordinary, but it would cost $6.40. The aggregate number of hours is 3,800, of sending the requisite gas-producing material to that point so that, with the six foot…
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