In still another coat (fig. 38 d) we find the same series of designs in symmetrical arrangement on the front and back. The middle is occupied by a cross and the other designs follow as indicated. Under the right arm appears an additional design, consisting of a central cross and rhomboidal fields with central dots; while under the left arm a single field is added differing in color from all the others but related to them in form. An interesting feature in this series is the overlapping of form and color. This condition appears even more clearly in designs from ancient Peru. I observed the occurrence of this rhythmical form a number of years ago and called the attention of Mr. Charles Mead to the phenomenon. He described[33] a number of designs of this type which show a rhythmic arrangement of six units, sometimes the same in form but different in color. Sometimes with a double rhythm, one of form and one of color. [33] Charles W. Mead, Six-Unit design in Ancient Peruvian Cloth, Boas Anniversary Volume, New York 1906, pp. 193 et seq. Plate IV, fig. 1 represents a border of vicuna wool, consisting of a series of diagonal bars all of the same pattern. The sequence of color is: 1. Bright red (1) with brown (7) dots. 2. Blue (2) with pink (1*) dots. 3. Dull yellow (3) with brown (7) dots. 4. White (4) with pink (1*) & brown (7) dots. 5. Dark green (5) with red (1) dots. 6. Red (1) with green (2) dots. The triangular patterns (Plate IV, fig. 2) have the following sequence: 1. Background white figures red spots dark blue. 2. — dark blue — red — dark yellow. 3. — yellow — red — dark blue. 4. — brown — red — yellow. 5. — light blue — red — dark yellow. 6. — dark yellow — red — light blue. The quadruple bird head pattern (Plate IV, fig. 3) has the following colors for the background, bird, and bird’s eye: 1. Background pink 1 bird: yellow eye: pink. 2. — yellow 2 — red — yellow. 3. — dark yellow 3 — light yellow — yellow. 4. — dark red 1^a — yellow — pink. 5. — yellow 2^a — dark red — yellow. 6. — dark yellow 3^a — light yellow — light yellow. [Illustration: PLATE IV. Peruvian Textiles.] A large cloak from Ica is embroidered with designs representing a man with a bow and headdress (fig. 39). The figures are the same all over, except that the position and the objects they hold alternate right and left. The color scheme, however, varies: there are six distinctive types. Considering only the colors of coat, legs and face we may arrange them in the following order: