Page 176 - Derek E. Avery - The new encyclopedia of knots

figure 119.1

Take the middle unlaid strand and tuck it under one strand of the
standing part, against the lay, at a point that provides you with a bight of
the size you require. Next take the strand lying on the inside, and tuck it
under the next strand of the standing part (figure 119.1) at the same

point along the rope. The third strand needs to be turned back towards
itself so that it can also be tucked against the lay, in the same position as
the first.

Next form a wall knot (see page 187) around the standing part (figure
119.2) by passing each strand in turn around and under its neighbour,
working with the lay. The end of the final strand is passed upwards
through the bight formed by the first.