If, however, you have enough of confidence in the science of an old practitioner who has consecrated his life to the study of painting, and if you wish to try something new, here is a sizing which he proposes, and which he considers absolutely perfect:-,Grind zinc white with alcohol and mix it with water-colour fixative. Lay on one coating; and when it is dry, which will be in a few minutes, rub with glass paper. As a matter of course, the more zinc-white you add, the more absorbent the sizing will be, but it will be less solid in proportion. (See Appendix-"Instantaneous sizing"),,,