ONE of the two thousand irreplaceable products of coal is Sulphate of Ammonia, that very valuable fertiliser. Every year the British farmer receives 87,000 tons from the gas industry. The carbonisation of coal in gas works releases all this extra wealth from Britain's precious resources of coal. Dozens of British industries look to the gas industry for raw materi- als — motor spirit, dye - stuffs, plastics, fine chemicals. GAS THE MOST OF BRITAIN'S WEALTH Turning coal into gas, coke and by-products makes the fullest use of the total heat energy of cool.