PS.]

KNOTTING ON THREADS WITH LOOPS (fig. 525).--Pin on two threads folded
in half, a little distance apart, detail _a_, and bind them together
with a flat double knot. Pin on more lengths close to them, the inner
threads of which are held by a "collecting knot", as the flat double
knot is called when it is made over more than two threads (see also fig.
530). The ends of the threads can then be looped over one or two cords,
so as to form a single or double bar of knots, as required.

[Illustration: FIG. 526. KNOTTING ON THREADS WITH TRIPLE SCALLOPS.]

KNOTTING ON THREADS WITH TRIPLE SCALLOPS (fig. 526).--Knot on three
single threads in succession; first, the middle one, then the second,
with the knot right and left and the loop long enough to form the
scallop, then the third in the same manner.

KNOTTING ON THREADS FOR RIBBED PICOTS (fig. 527).--Take a double
thread and make two slanting bars of knots, see details _a_ and _b_,
then secure them, like the preceding scallops by a horizontal bar of
knots, see detail _c_.

KNOTTING ON THREADS FOR A GIMP HEADING (fig. 528).--This mode of
knotting on forms a broad gimp, consisting of vertical bars of knots,
made over a single cord. On the one side, that which is afterwards
turned downwards, the cord, the ribs are made on, forms loops, held with
pins, into which meshes of threads can be knotted when the gimp is
finished, for making either a fringe or a grounding.

Patterns in several colours may likewise be knotted into gimp headings
of this kind.

[Illustration: FIG. 527. KNOTTING ON THREADS WITH RIBBED PICOTS.]

[Illustration: FIG. 528. KNOTTING ON THREADS FOR A GIMP HEADING.]

FLAT DOUBLE KNOTS WITH HALF KNOTS (fig. 529).--These are double knots
followed by a third knot, or more correctly speaking, a half one of the
first flat knots.

COLLECTING KNOTS (fig. 530).--As explained in fig. 525, these are flat
double knots, made over more than two threads. The engraving shows, in
the first place on the left, a flat double knot made over two threads,
completed, and the first crossing of the thread for the collecting knot;
secondly, the second crossing of the threads; thirdly how the collecting
knot can, if necessary, be continued over 4 threads, and fourthly, how
the collecting knot should be made to finish with a flat double knot.

PLAITED AND WAVED KNOTS (fig. 531).--Plaited knots are formed by a
continuous repetition of the first crossing of the threads for making a