This method is also very effective for finding gasoline leaks. When you you notice the jet of flames, you’ve found your leak.

Cigarette Smoke Finds Leak in Inner Tube
A burning cigarette can guide you in locating a leak in an inner tube, in case it is not convenient to dip the tube into a tub of water. The cigarette is moved around the surface of the inflated tube, until the air jet from the leak deflects the rising smoke. Make sure, before using this method, that there are no strong air currents in the room where it is being done.—R. B.

Double Bullet on Wheels
By Michael Stern

Mi’s European Correspondent

AN amazing contraption, I thought, as the odd-looking car was unloaded from a truck onto the Appian Way, just south of Rome. The kind of vehicle that springs full-grown out of fantastic comic books. But, it was an automobile, all right—a pair of sleek silver-and-blue torpedoes, shaped very much like the deadly fish launched by submarines, connected by two thin strips of beveled aluminum.

This looks like it should be in a Dr. Seuss book.

Intricate “What-Is-It” Gathers Cushion Data
NO, it’s not a car of the future; nor the past either. The strange-looking contraption in which the young woman seems to be going for a drive is designed to gather information for engineers. Installed at the University of Michigan, at Ann Arbor, where thousands of persons have sat in it, the apparatus was built for a cushion manufacturer who hopes from countless measurements made on it to obtain an average-size automobile-seat cushion that will be comfortable for the majority of motorists.