Fishing Knots: Blood Knot
Each fishing knots dealt with in this book has its own definite and prescribed purpose. When properly tied, or formed, then worked or drawn up into shape, the fishing knot can make all the difference between boating a big fish, or losing it.
This is a little more difficults finshing knots to make; the Blood Knot, but nylons is very resistant in the union of two, as it is seen in the figure. With some variant it is possible also to be used in the nylon union with steel for leaders, like for example in equipments for shark dogfish.