Figure 4.
FOUR-END WEFT TWILL WEAVE.

This figure, in which the weft threads predominate on the surface, illustrates a four-end, one-warp and three-weft, regular weft twill, in which three-quarters of the weft threads are thrown to the surface and the remaining quarter is warp. It is the reverse of Figure 3.

Figure 5.
TWO-AND-TWO TWILL WEAVE.

This figure illustrates a four-end, two-warp and two-weft, regular twill. Neither warp nor weft predominates on the surface. This style of twill is known as Harvard twill.

Figure 6.
IRREGULAR TWILL WEAVE.

This figure illustrates a broken or irregular twill, also known as a broken Harvard or Stockinette weave.