§ 39. Mr. Paling
asked the Secretary for Mines what proportion of Britain's annual output of coal is treated in by-product works, and the number of tons this proportion represents?
§ Captain Crookshank
The quantity of coal carbonised in 1936 at by-product coke-ovens, gas works and low-temperature carbonisation plants was 39,000,000 tons, representing 17 per cent. of the total output of coal in that year.