Experiments on bleaching [microform] / by Francis Home ... to which are added, I. An experimental essay on the use of leys and sours in bleaching / by James Ferguson, M.D. II. An explanation of the effect of lime upon alkaline salts, and a method pointed out whereby it may be used with safety and advantage in bleaching / by Joseph Black, M.D. III. An abstract of the foregoing essays, containing practical rules and plain directions for the preparation and use of the sours made of oil of vitriol, and of the leys made of bleaching-ashes with the addition of quick-lime / [by David Macbride].