The painter in oil : a complete treatise on the principles and technique necessary to the painting of pictures in oil colors (1898)
Parkhurst, Daniel Burleigh · Boston : Lee and Shepard · leaf 410
DIFFICULTIES OF BEGINNERS 395 or four lines which will give the mass of the main effect or object —a barn, a tree, a slope of hill, or whatever it be, get merely its simplest suggestion of outline. These two things will show you, on … considering their relation to each other and to the rest of the canvas, about what its emphasis will be:* If it-tsn’t right, rub it out and do it again, a little larger or smaller, a little more to one side or the other, higher or lower, as you find needed. When you have done this to your…
Painting
Internet Archive · Getty Research Institute · Public domain (published before 1931). Free to use for anything.