Victorian illustration to download showing the mill room at a pottery factory, where ingredients for clay are mixed. Each ingredient (various clays and ground flint) come down in wooden troughs to a vessel, where they are beaten up with water to a thick cream (slip) by rotating arms. The slips flow into large vessels, where they are mixed together. Afterwards this mixture will be sieved finely and then heated to evaporate the moisture to make a workable clay. This scene was sketched in the Copeland & Garrett factory, Staffordshire, in 1843.