ETHYL: = high compression performance You YOU are hearing much about "high compression"..."high compression engines" "high compression fuel"... "high compression performance." ... "What," a great many car owners are asking, "does 'high compression' mean to me?" Here is a simple explanation: Each cylinder of your engine may be likened to a muzzle-loading gun. The cylinder is the gun; the piston is the bullet; and the mixture of gasoline and air is the powder charge. The tighter you pack the powder charge in the gun before firing, the greater the force to the bullet. Similarly, the tighter you squeeze -or compress-gas vapor and air in the combustion chamber before ignition, the greater the force of the piston's stroke. In other words, the higher the compression the greater the power. Higher compression in a gasoline engine is obtained by decreasing the size of the combustion chamber-either by mechanical design or by carbon for. mation. Up to the advent of Ethyl Gasoline, the compression of automobile en gines was limited by the compression limits of gasoline. For gasoline is not a perfect fuel. It explodes too soon ("knocks”) and loses power when squeezed beyond a certain point. That is why General Motors Research Laboratories developed ETHYL fluid, a com. pound which controls the combustion rate of gasoline so that as engine compression is raised the "knock" is eliminated. And that is why oil companies are mixing ETHYL fluid with gasoline to form Ethyl Gasoline-the standard high compression fuel. Within the last year, car manufacturers have been able to produce new models of higher compression and greater power. But the most immediate benefits of Ethyl Gasoline are found among the millions of owners of cars of ordinary compression, because with its use in such cars carbon becomes an asset. ETHYL BRANC of ETHYL GASOLINE Ride with ETHYL. See what a great difference it makes on hills and in traffic. No "knocking." Less shifting. Faster pickup. Stop at an ETHYL pump today-it bears the emblem shown at the left. ETHYL GASOLINE CORPORATION, 25 Broadway, New York City. 56 Church Street, Toronto, Ont., Can. ETHYL GASOLINE SMARTNESS, ONCE ACHIEVED, LASTS ONLY AS LONG AS IT IS COMFORTABLE C things that smart people continue to favor. And you discover that their success is due to the fact that their smartness has an unshakable foundation of comfort and service. For years, the smartest people have continued to buy Arnold Glove-Grip Shoes. That they do so is proof of their superiority in style of their knack of anticipating fashion! But it is even greater evidence of the satisfaction and comfort they give. The secret of this rare com. bination is the exclusive GloveGrip feature which makes an Arnold shoe as pliant as a glove yet enables it to support the foot delicately and firmly. A step in these lithe, handsome shoes reveals what real foot-pleasure is! A glance shows you real smartness. Write us for the address of your Arnold dealer. M. N. Arnold Shoe Company, Dept.Q-10, North Abington, Mass. Sleek felt hats are preferred. Threepiece suits and tailored dresses of feather-weight woolens. Gloves are chamois slip-ons. Sheer lisle stockings and Arnold Glove-Grip Shoes harmonize perfectly with these smart sembles. en Oxford gray unfinished worsted sacque suits are much favored this fall. This gentleman wears a smart narrowbrimmed English hat and pull-over Mocha gloves. His white, collar-attached shirt is worn with a collar pin. The costume is correctly complete with Arnold Glove-Grip Shoes. ARNOLD GLOVE-GRIP SHOES TESTING in the Cordeveau finish THIS national advertising is a new step for Guardian heaters. Never before cou Guardians be offered to so wide a circle. Each Guardian fireplace and portable heat was designed to harmonize with the period furnishings of a few finer homes. Guardia beauty was a discovery limited to a growing few. T Then came our Cordeveaux Finish-which doubled demand for Guardians in a sing year. Increased production was necessary, and has been attained without sacrifice artistic merit. New Designs with the CORDEVEAUX FINISH There is no other metal finish remotely like Guardian's vari-colored Cordeveaux. It has the rich patina of an old bronze medallion, mellowed and patterned by time's master fingers. It is everlasting-an integral part of the metal. Cordeveaux finish will not rust, crack, peel, tarnish or burn off. It is as easily cleaned as polished marble. Yet Guardians cost no more. 湯 Many of the finer residences and apartments a installing a Guardian gas heater in each importa room. Gas is the modern, clean, convenient a economical fuel. Ask your gas company or dealer show you Guardians, or write us for a color brochu picturing all models. No need of starting your fu nace yet, if you get a Guardian now. THE GUARDIAN GAS APPLIANCE COMPANY 1 1364 East 47th Street Cleveland, Ohio Guardian FIREPLACE AND PORTABLE HEATERS |