The most interesting exhibit amongst the carburetters shown on the stand of Degory Carburators, Ltd., of 235, Acton Lane, London, W. 3, is the model S.T. now being shown for the first time, and specially designed for use on light cars. Its chief feature is its simplicity. When in operation, there are only three parts which move, so that when once tuned, it cannot get out of order.