Interest in safety fuels for airplanes has been revived by development of a new type gasoline that has a flash point of 100 degrees Fahrenheit - the temperature atmwhich its vapor will ignite - yet has an octane, or anti-knock, rating up to 100 octane number. Scientists of Standard Oil development company state that if propermequipment were installed, it would be pos-sible to produce 10,000,000 barrels of such fuels each year, enough to meet aviation’s needs for years to come. These fuels, however, cannot be burned in an ordinary engine using a carburetor, since it is necessary to feed the new gasoline into the engine by injection methods.