The theory of effect : embracing the contrast of light and shade, of colour and harmony (1851)
Bengo, John, Hinckley, C. T · Philadelphia : J.W. Moore · leaf 28
. 23 ON HARMONY. Harmony consists in a sameness or similarity offorms of light and shade, and of colour. Thus, inregard to forms: Every line is in harmony with another when itruns parallel with it, whether it be a straight or acurved line; thus, in the annexed figure, there ex-ists a perfect… … From this example, the student will readily per-ceive what is meant by harmony of forms; in thesame way, the harmony of light and shade exists 24 THE THEORY OF EFFECT. in a picture, where the lights or shades are of thesame degree of strength throughout. With regard to the harmony of colours,…
Drawing · Shades and shadows
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