METAL. Perforated sheet metal; metal for corners, fixtures, etc., pp. 25, 58.
WOOD. Fret saw work, inlay; pp. 62, 76, 77.
Examples of applications are given below, No. 53, and on opposite page.
XII.—THREE VALUES
Clear black against clear white is a strong contrast; even the best of such work has some harshness, despite a sparkling brilliancy. A tone of gray, midway between these two extremes, changes their relations and opens up a whole new field for creative activity. Now we must think of different degrees of Notan,—the “value” of one tone against another. This simple set of three notes is the basis of the mezzotint, aquatint, charcoal sketch and wash drawing. The old masters drew on gray paper with black and white.
From three, it is an easy step to many values, and in these refinements of Notan lies the true meaning of the word “values.” That property of painted shapes, whereby they “take their places” one beyond another in a picture, is aerial perspective, not values. It is a desirable quality of Representation, and often becomes a kind of deception most agreeable to the mind unappreciative of art. Those who have little perception of harmonies of tone and color, wish to see objects “stand out” in the picture “as if they were real.”