In the following figures we have illustrations of the peculiar class
of primitive experiments that, after the lapse of ages, lead up to
marvelous results, the highest of which may be found in the exquisite
laces of cultured peoples. The Americans had only taken the first
steps in this peculiar art, but the results are on this account of
especial interest in the history of the art.

An example of simple reticulated hand weaving is shown in Fig. 308. It
is the work of the mound builders and is taken from an impression upon
an ancient piece of pottery obtained in Tennessee.

[Illustration: FIG. 308. Incipient stage of reticulated ornament.
Fabric of the mound builders.]

Fig. 309 illustrates a bit of ancient Peruvian work executed on a
frame or in a rude loom, a checker pattern being produced by arranging
the warp and woof now close together and now wide apart.

Open work of this class is sometimes completed by after processes,
certain threads or filaments being drawn out or introduced, by which
means the figures are emphasized and varied.

In Fig. 310 we have a second Peruvian example in which the woof
threads have been omitted for the space of an inch, and across this
interval the loose warp has been plaited and drawn together, producing
a lattice-like band.

[Illustration: FIG. 309. Simple form of ornamental reticulation.
Ancient Peruvian work.]