BoAs] IMBRICATED DESIGNS 243 
The vertical stripe is usually entirely imbricated. In its simplest 
and probably most common form it consists of a series of checks, 
either small squares or small rectangles standing on end. (PI. 33, ¢.)* 
Very narrow ones are composed of one series of such rectangles. 
Another variation is a series of four or five vertical lines, cut up into 
small sections by changes of color. (PI. 34,a.) Thesections are about 
as long as the whole series is wide, so that they form squares. Still 
another variety is composed of alternating dark and light narrow 
vertical lines, about five or seven of which constitute a stripe. At 
intervals these are interrupted by a short section of checkerwork. 
(Pls. 7, a; 34, d.) There are others composed of small squares ex- 
tending down the center of the stripe. (Pl. 34, c.) Uninterrupted 
vertical lines are also seen. (Pls. 34, b; 35, 6.) 
There is no rule regarding color. Stripes may be black or red with 
light figures, or light with dark figures, while their edges may or may 
not be outlined with contrasting colors. Plate 34 illustrates various 
forms of vertical stripes in which only vertical and horizontal subdi- 
visions are employed. 
Another very popular way of ornamenting the stripe is by means 
of parallel diagonal lines, in the handling of which sevéral ingenious 
variations are noted. The most common is that involving long 
diagonals, which slip past each other, giving a clear effect of parallel 
lines with no very apparent ‘‘by-product’’ patterns. These are 
illustrated on Plates 26, h, and 35, ¢, d, e. 
There are other shorter, thicker diagonals, the adjoining lines 
beginning or ending on the same level, instead of slipping past. If 
the stripe is narrow, so that the corner of the one just finishing about 
touches that of the new one just beginning, the reverse patterns 
along the sides of the stripe consist of two series of superimposed 
right-angled triangles, the apex of one touching the base of the 
next. If the parallel lines trend toward the right, as they usually 
do, the series of such right-angled triangles on the left turn down, 
those on the right turn up. (PI. 40,a.) If the lines trend to the left 
the positions of these two series are reversed. Sometimes, when the 
stripe is wider, two parallel lines are found on a level instead of one, 
which, except that they are a bit out of line with those on the next 
level, might give the impression of slipped diagonals. (Pl. 36, g.) 
Much of the general effect depends upon the width of the stripe and 
the comparative width and length of the diagonals. Plates 37, a; 
43, ¢ (astorage basket), show this type of decoration where the lines, 
although no thicker than those shown in the plates illustrating slipped 
lines, are, because of their shortness and relative width as compared 
“ The vertical zigzag belongs neither to the vertical series of small figures nor to the vertical stripe with 
straight edges. It is included here for convenience. See also PI. 33, ¢, which is a photograph of a rather 
old specimen. 
