78 



BULLETIN 87, UNITED STATES NATIONAL MUSEUM. 



warp threads and winding the fourth thread around the other three, 

 bringing it down into its proper place in the warp below (fig. 



162 5, with diagram of 

 spiral). After an inter- 

 val . of plain weaving- 

 there begins a design 

 made up of a frame of 

 superimposed triangles 

 surrounding a square 

 cross. (Fig. 162 a.) 

 The vertical construc- 

 tions of the warp in 

 this pattern are formed 

 as described above, the 

 horizontal as in figTire 

 162 (?, where the lower 

 member of the quartet 

 of cords is wound spi- 

 rally around the other 

 three, returning again to place. The openings in the cross are 

 woven as in figure 162 (f, where two pairs of cords are given a twist. 

 It appears from this work that the threads which may be termed 

 the " warp " are either hung free from the loom beam, as in the 



Fig. 162. 



.^^ 



Fig. 163. — Ornamented cloth from Cas.\ Grande. 



Chilkat method, or if stretched the individual cords were detached 

 from the lower beam, used, and secured again. 



The largest fragment of ancient ornamented cloth was found by 

 Dr. J. Walter Fewkes in the ruins of Casa Grande (Cat. No. 252105, 



