Text of the 1799 patent specification of William Gillispie, a calico-printer of Anderston near Glasgow, for a method of printing coloured cloths with white or multicoloured figures on coloured grounds. The cloth is first impregnated with a mordant, then printed with a vegetable acid to discharge the mordant where white is wanted and with other mordants where other colours are wanted, and finally dyed. The process is described in general terms and then as a detailed working sequence, ending with rinsing, bran cleaning and an oxygenated muriatic acid (chlorine) treatment.