Page 24 - Alpheus Hyatt Verrill "Knots, Splices and Rope-Work"

If you wish this still more secure, a single half-hitch may be taken with the line a couple
of feet further along the spar (Fig. 39).

It is remarkable what power to grip a twisted rope has, and the "Twist Knots" shown in
Figs. 40 and 41 illustrate two ways of making fast which are really not knots at all but
merely twists.