To join two pieces of rope by interweaving the strands. The resulting joint is a splice. In the Eye-splice the rope’s end is turned back and woven into itself to form a loop.
In the Back splice the three strands are formed into a Crown knot and then immediately tucked back into the rope to make a thickened end which will not unravel.
The Cut splice is made by splicing the two ends of a short piece of rope into the body of a longer piece, rather like the handle of a a basket.
The short splice and long splice join two pieces of rope end-to-end. In the Short splice the strands of each rope are unlaid, then the ropes are married together and the strands of each are tucked under the still-laid strands of the other, working against the lay. The splice is thicker than the body of the rope because it contains six strands instead of the normal three.
The Long splice is quite different. Strands in each rope are unlaid for a greater length and the ropes are married. A strand of one rope is then unlaid for an even greater length, and a strand of the other is laid up in its place. The procedure is repeated for the other rope. The remaining two strands (one from each rope) are cut where they meet at the middle of the splice, allowing enough to tie them together with a reef knot. The other matching pairs of strands are similarly tied. The result is barely thicker than the original rope, but not very strong and consequently not much used.