In London, on August 16th, Oldham and Son Ltd., of Manchester, held a Press demonstration of their revolutionary new Power-Seal battery. This battery can be taken out of storage, filled with acid, and, in half-an-hour, without any external electrical charging, is fully charged ready for use, the first British battery in which this magic has been incorporated. To prove it we saw an Oldham Major Power-Seal battery made up, filled, and in under half-an-hour start the engine of the Austin car in which it was demonstrated. If the battery subsequently loses its charge it has to be recharged in the normal manner, but long periods of inactivity do it no harm, so on initial acid-charging it will be an asset to Service Stations and its long life and ability to lay-up without damage, coupled with a two-year unconditional guarantee, makes the Oldham Major Power-Seal battery a good bet for the private owner. With latest improvements, Power-Seal costs about 15 per cent. more than other Oldham batteries. It is so revolutionary that it really ought to be renamed “New-ham” and certainly hot-tube ignition is doomed and the days of the magneto numbered! — W. B.