The Clove Hitch-Knot. For fastening ft cord to any cylindrical object, one of the most useful knots is the clove hitch, which although exceedingly simple and most easily made, is one of the most puzzling knots to the uninitiated. There are several modes of forming it, the most simple being perhaps as follows. - make two loops, precisely similar in every respect as a and b, Fig. 7, then bring b in front of a, so as to make both loops correspond, and pass them over the object to be tied, tightening the ends; if this is properly done, ihe knot will not slip, although surrounding a tolerably smooth cylindrical object, as a pillar, pole, etc. This knot is employed by surgeons in reducing dislocations of the last joint of the thumb, and by sailors in great part of the standing rigging. The loop which is formed when a cable is passed around a post or tree to secure a vessel near shore, is fastened by what sailors term two half hitches, which is simply a clove hitch made by the end of the rope which is passed around the post or tree, and then made to describe the clove hitch around that part of itself which is tightly strained.