Experimental science. Elementary, practical and experimental physics (1890)
Hopkins, George M. (George Milton), 1842-1902 · New York, Munn & co. · leaf 362
and the rottenstone as well as the square ofCanton flannel with which it was applied was moistenedwith dilute alcohol. The center of the Canton flannelsquare was then clasped between two of the fingers, andmoved round and round with a gyratory motion until theplate acquired a fine dead-smooth… … Buffing. tion of a straight or curved hand buff formed of a boardabout four inches wide and thirty inches long, padded withfour or five thicknesses of Canton flannel, and covered witlibuckskin charged with the finest rouge. Scrupulous cleanli-ness was imperative in every step of the process. The…
Physics · Lantern projection · Electric apparatus and appliances
Internet Archive · Cornell University Library · Public Domain Mark 1.0. Free to use for anything.
![An illustration from One thousand processes in manufactures and experiments in chemistry / [Colin Mackenzie]. (1825)](https://img.insideoutlibrary.com/img/200/wellcome-wellcome_b29307867-195-1.webp)
