or buy things? The manufacturing magnate and the cautious purchaser may look at things from a different angle—but, directly or indirectly, both are concerned with the correct use of gas. Gas affects manufacturing efficiency, and thereby the price and quality of manufactured organization of the Industry, and the goods. But no manufacturer can know all there is to know about gas — any more than an architect can, or Health Authorities, or caterers, or those who use gas for large-scale heating. Because gas is such a vast, varied, highly specialised subject, professional and industrial users need to know the THE GAS COUNCIL 1 GROSVENOR PLACE LONDON sources of the latest information and techniques about the best usage of gas and coke.