Strange disease symptoms in workers are appearing as a result of new products and processes in industry. A woman employed in a London floor polish factory noted that her lips were discolored. A specialist discovered that a chemical used in her work was turning her blood blue. Treatment put the woman right, and precautions in the factory prevented the extension of "blue blood" among the workers.--New York Times, April 11.

Ed. note: We simply must keep these workers in their places.