Issue 19 and Volume 46.

GASOLINE AND ALCOHOL ENGINE TESTS The United States Geological Survey has just issued a bulletin on “Commercial Deductions from Comparisons of Gasoline and Alcohol Tests on Internal-Combustion Engines,” by Robert M. Strong. The tests, which were under the technical direction of R. H, Fernald, engineer in charge of the producer-gas section of the technologic branch, were conducted at the fuel-testing plant in St. Louis, Mo., and at Norfolk, Va. The tests dealt primarily with gasoline, forming part of the investigation of mineral fuels provided for by acts of Congress. To determine the relative economy and efficiency of gasoline it was compared with denatured alcohol. When the series of tests was started, it was found that it took from one and one-half to two times as much alcohol as gasoline to produce a given power. W ith special alcohol engines, entirely suited to the use of alcohol, the latter fuel has…

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