At the private ethnologic collection of Mr. A. F. Coronel, of Los Angeles, California, Dr. Hoffman discovered a clue to the general import of the above petroglyphs, as well as the signification of some of their characters. In a collection of colored illustrations of old Mexican costumes he found blankets bearing borders and colors nearly identical with those shown in the circles in Fig. 32, _d_, and Fig. 33, _c_, _r_, _w_. It is probable that the circles represent bales of blankets which early became articles of trade at the Santa Barbara mission. If this supposition is correct, the cross lines would seem to represent the cords used in tying the blankets into bales, which same cross lines appear as cords in _l_, Fig. 33. Mr. Coronel also possesses small figures of Mexicans, of various conditions of life, costumes, trades, and professions, one of which, a painted statuette, is a representation of a Mexican lying down flat upon an outspread serape, similar in color and form to the black and white bands shown in the upper figure of _d_, Fig. 32, and _a_, _b_, of Fig. 33, and instantly suggesting the explanation of those figures. Upon the latter the continuity of the black and white bands is broken, as the human figures are probably intended to be in front, or on top, of the drawings of the blankets. [Illustration: FIG. 33.--Petroglyph in Santa Barbara county, California.] The small statuette above mentioned is that of a Mexican trader, and if the circles in the petroglyphs are considered to represent bales of blankets, the character in Fig. 32, _d_, is still more interesting, from the union of one of these circles with a character representing the trader, i. e., the man possessing the bales. Bales, or what appear to be bales, are represented to the top and right of the circle in _d_, in that figure. In Fig. 33, _l_, a bale is upon the back of what appears to be a horse, led in an upward direction by an Indian whose headdress and ends of the breechcloth are visible. To the right of the bale are three short lines, evidently showing the knot or ends of the cords used in tying a bale of blankets without colors, therefore of less importance, or of other goods. Other human forms appear in the attitude of making gestures, one also in _j_, Fig. 33, probably carrying a bale of goods. In the same figure _u_ represents a centipede, an insect found occasionally south of the mountains, but reported as extremely rare in the immediate northern regions. For remarks upon _x_ in the same figure see Chapter XX, Section 2, under the heading The Cross. Mr. Coronel stated that when he first settled in Los Angeles, in 1843, the Indians living north of the San Fernando mountains manufactured blankets of the fur and hair of animals, showing transverse bands of black and white similar to those depicted, which were sold to the inhabitants of the valley of Los Angeles and to Indians who transported them to other tribes.