Du Pont farmer's handbook; instructions in the use of dynamite for clearing land, planting and cultivating trees, drainage, ditching and subsoiling . 3. A MOMENT AFTER THE BLAST. 4. THE COMPLETED DITCH DITCHING WITH DYNAMITE ditches it is generally necessary to load one and a half or two car-tridges in each hole in the outside rows and two or three cartridgesin each hole in the middle row. When there are two or three rowsmore than two feet apart the charges in the middle hole of each rowshould be primed with an electric fuze and exploded together with ablasting machine or else an extra hole sh
Du Pont farmer's handbook; instructions in the use of dynamite for clearing land, planting and cultivating trees, drainage, ditching and subsoiling . 3. A MOMENT AFTER THE BLAST. 4. THE COMPLETED DITCH DITCHING WITH DYNAMITE ditches it is generally necessary to load one and a half or two car-tridges in each hole in the outside rows and two or three cartridgesin each hole in the middle row. When there are two or three rowsmore than two feet apart the charges in the middle hole of each rowshould be primed with an electric fuze and exploded together with ablasting machine or else an extra hole should be put down midwaybetween the middle holes of each row so that the effect of the ex-plosion of the charge with the primer cartridge would not have tocarry more than two feet. When there are two or three rows of holes they are sometimesalternated or staggered as follows: o o< S £ O S = E 0< -c nj a o o o ™°x The entire cost, including labor and dynamite, of ditches fromthree to four feet deep, three feet wide at the bottom and five toseven feet wide at the top, is two cents to four cents per lineal footor an average of about six and two-thirds cents per cubi
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Keywords: ., bookcentury1900, bookdecade1910, bookiddup, booksubjectexplosives
