712 EXPEDITION TO ARIZONA IN 1895 (ETH. ANN. 17 
marginal lines uniting the series. Each of the inner parallel lines is 
bound to a marginal on the opposite side by a band at right angles to 
it. The marginal lines are unbroken through the length of the figure. 
Fic. 301—Rectangular reversed S-form 
Like the last, this motive also may be regarded as developed from a 
single line. 
Figures 301 and 302 are even simpler than the design shown in figure 
Fic. 302—Rectangular S-form with crooks 
300, with appended square key patterns, all preserving rectangular 
forms and destitute of all others. They are of S-form, and differ more 
especially in the character of their appendages. 
Fic. 303— Rectangular S-form with triangles 
While the same rectangular idea predominates in figure 303, it is 
worked out with the introduction of triangles and quadrilateral designs. 
This fairly compound pattern, however, is still classified among rectan- 
gular forms. A combination of rectangular and triangular geometric 
Fig. 304—Rectangular S-form with terraced triangles 
designs, in which, however, the former predominate, is shown in figure 
304, which ean readily be reduced to certain of those forms already men- 
tioned. The triangles appear to be subordinated to the rectangles, and 
even they are fringed on their longer sides with terraced forms. It may 
