There's gold in grime!

There's gold in grime! Can you name the common raw material of your telephone receiver & your wife's nylon stockings? Of saccharine and sul- phuric acid, of paints and plastics? Of aspirin and M & B and benzole and yellow mepacrine ? Coal, you'll say. True, but what do most of us make from the coal we burn ? Soot. The city grime that costs us £50 million a year in damage and fog delays. Makers of coal-derivatives don't buy coal, but the residues of coal carbonisa- tion. When Mr. Therm has carbonised a ton of coal; when 15,000 cubic feet of gas are ready for piping to home and factory, says Mr.