. Agriculture and the farming business . for the halter-hitch; weav-ers knot for the joining of small cords; fixed knot; anchorbend; timber-hitch, which can be easily untied but neverslips; and the carrick-bend for joining ropes. Making the right knot.—Dififerent knots are requiredfor different purposes. A simple knot that will serve inone use is not adapted to another; knots that will untieunder certain conditions may be impossible to untie underother conditions.* Principles of knot tying.—Certain principles apply tothe tying of all knots. The efficiency of the knot doesnot depend on the numb
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. Agriculture and the farming business . for the halter-hitch; weav-ers knot for the joining of small cords; fixed knot; anchorbend; timber-hitch, which can be easily untied but neverslips; and the carrick-bend for joining ropes. Making the right knot.—Dififerent knots are requiredfor different purposes. A simple knot that will serve inone use is not adapted to another; knots that will untieunder certain conditions may be impossible to untie underother conditions.* Principles of knot tying.—Certain principles apply tothe tying of all knots. The efficiency of the knot doesnot depend on the number of turns or hitches, but on the *A most interesting little book on rope knotting andsplicing is one published by David McKay, Philadelphia, SOcents. A number of the drawings here shown are taken by per-mission of the company from this set. 674 AGRICULTURE AND position of the nip. The bend or hitch must be so formedthat the part of the rope under strain nips securely someportion of the knot, either against itself or the object to. Learn to do these knots nnd roiie siiliciugs. which it is attached. The nip of each different knot shouldbe studied. Rope materials.—While a large part of our rope andcordage is made of hemp, many other materials are now THE FARMING BUSINESS 675 coming to enter into their manufacture. The coil rope ismade from cocoanut fiber, which is used because it is soHght and pliable. This rope is useful for warps, rocketlines, life-buoy lines, nets, etc. Manila grass is adapted tothe construction of coarse ropes and hawsers requiringgreat strength and hard wear, and where tar can not be usedon the rope. Strips of hides are used for ropes where great strengthand pliability with small diameter are needed. Cotton isemployed for ropes and cordage used for fancy work ofall kinds. Wire is used for rope making whenever verygreat strength is needed, as in connection with dredgingmachinery, suspension bridge cables and the like. Rope-making.—Yarns are formed by