Page 87 - Gibson W.B. "The complete guide to knots"

1
79
Double Jury Knot

Here you lay out three overhand
loops ("X," "Y," "Z"), in that order
from left to right. "Y" overlaps "X"
and "Z" overlaps "Y," as shown in
figure 1.
The loops should be placed on a
flat surface, so that they can be easily
handled. Draw the right side of loop
"X" over the first rope to its right, * -*
pu
under the next and over the last.
At the same time, work the left side
of loop "Z" under the first rope to its
left —which is the right side of "X"
— then over the next and under the
fig-
last (as shown by the arrows in fig.
1). Pull those extended ropes toward
left and right and you will have two
big loops (fig. 2).
Those account for "X" and "Z,"
but what about the middle loop, "Y"?
You can reclaim "Y" by drawing it
out from the bottom of the knot, so
that it forms a third loop below and
between the other two (fig. 2).
For nautical purposes, a fourth
loop can be formed by knotting the
two loose ends, but when used to att-
ach a guy line, these are generally
spliced for greater holding strength.