Carmaux is in southcentral France near the Tarn River As a brick of coke about four feet high and three feet wide is gradually pushed out of a smelter into a yard one worker sprays it with water from a hose while two workers with long metal rakes wait to spread it out Other workers buzz in and out of the foreground of the stationary camera Atop the first level of the brick smelter workers push full carts of coal along a track