Pretty arts for the employment of leisure hours : a book for ladies (1879)
Davidson, Ellis A., -1878 · London : Chapman and Hall · leaf 105
Lithographic Drawing. 9i in touches, the spaces between which should be filled up as the work proceeds; but the touches or patching should never be entirely worked away, as in such case a smooth and unpleasant effect is produced as if the … Fig. 18.— View of a Litho-Stone. drawing had been executed with a piece of wood. The chalks should be held as nearly upright as possible whilst drawing with them, in order to avoid breaking the points, which, from the nature of the chalks, are, necessarily, liable to so break off.
Handicraft · Decorative arts
Internet Archive · Getty Research Institute · Public domain (published before 1931). Free to use for anything.