THE PRINCIPLES OF DESIGN 4. Representation in design. In this case design has received first consideration, while representation is of secondary importance. We perceive a resemblance to some natural feature -- presumably derived from an alligator -- so abstract in character that we have little means of identification. Examples might be multiplied from the work of various nations and periods showing the continued development of these lines of work. It is hoped that the student will supplement these illustrations by seeking others for himself. We will devote ourselves first to the study of what has been called the pure design point of view. Pure design gives definition to fundamental principles and employs as a means to an end abstract spots of paint or ink. A spot paint or ink may he described in three words: it is a tone, a measure, a shape. This description applies to any spot of paint that can be made. We are to be guided by certain definite principles: rhythm, balance, harmony. "Pure design is the composition of tones, measures, shapes, for the sake of rhythm, balance, harmony, the principles of order and beauty." Tone means the value (as dark, light); or the color (as red, green, blue). Measure means the size (as long, short, large, small). Shape means the contour or bounding line (as straight, curved, square, round). These terms are important. One term must not be confused with another. To emphasize the distinction let us insert here the first problem, Page 6