This section is from the book "The Boy Mechanic Vol. 2 1000 Things for Boys to Do", by Popular Mechanics Co.. Also available from Amazon: The Boy Mechanic, Vol2: 1000 Things for Boys to Do.
A method not generally known to quickly and securely hitch up a hammock between two trees, in camp or elsewhere, is shown in the sketch. Each end rope is given one or more turns around a tree trunk and then tucked under, as shown. The pull on the rope will draw it tightly against the rough bark on the tree. The harder the pull, the tighter the rope binds against the tree trunk. In this manner a hammock can be put up in a few moments and it is as readily taken down. - Contributed by Bert Morehouse, Des Moines, Iowa.