Leading jWire 



Leading Wire is sold in coils of 200 feet, 250 feet, 300 feet and 500 

 feet. There are two kinds, Single and Duplex. In the Duplex Wire, the 

 two wires are bound together, which usually makes it more convenient 

 to handle. Single Leading Wire weighs about two pounds to the hun- 

 dred feet, and Duplex Leading Wire weighs four pounds to the hundred 

 feet. Leading Wire is sold by the pound. 



Connecting Wire 



Connecting Wire is sold in 1-lb. and 2-lb. spools. A 1-lb. spool of 

 No. 20 Connecting Wire holds about 210 feet. 



FIG. 96. COIL OF LEADING WIRE FIG. 97. SPOOL OF CONNECTING WIRE 



Tools Used in Agricultural Blasting 



Tools necessary in farm blasting are to be found on almost every 

 farm or can be easily made there or at the nearest blacksmith shop. The 

 holes for blasting stumps, boulders, trees, ditches, post holes, road 

 grading, trenches, etc., can all be made with a crowbar having a point at 

 one end and a flat chisel edge at the other. The wooden tamping stick 

 can be made in half an hour by dressing down a hard wood sapling, or, 

 if the holes are shallow, an old broomstick will do. A long handle shovel 

 and a grub-hoe or mattock are always serviceable when blasting stumps 

 and boulders. Although a crowbar is very satisfactory for making a 

 moderate number of holes, it will usually be found of advantage, if the 

 work is extensive, to secure augers or bars especially made for the 

 purpose. Sometimes a steel rod one-quarter of an inch in diameter and 

 five feet long with a sharp slender point at one end and a ring on the 

 other is serviceable for probing under a stump to find out the size and 

 position of the main roots. 



When draining swamps by shattering the impervious subsoil under 

 them it is sometimes necessary to make the holes for the dynamite much 

 deeper than can be done with a crowbar. For this work rod or pipe 

 extensions for the augers are used. In subsoiling, a bar a little heavier 

 and shorter than a crowbar is also used. This subsoil bar can be removed 

 when it becomes fast by means of a trace chain and a lever. 



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