Coal trains arrive in London, extra effort begun to show dividends. That extra effort urged by the poster in Ludgate Circus, London, has come in good measure from miners, railwaymen, lorry drivers - and from the mass of the public who have suffered the fuel shortage, but who have done their bit by switching off. Coal stocks at the Power Stations and the gasworks throughout the country are nearing the safety level after weeks of shortage. Poster in the foreground shows Cary Grant and Ingrid Bergman in Alfred Hitchcock's "Notorious".