Du Pont farmer's handbook; instructions in the use of dynamite for clearing land, planting and cultivating trees, drainage, ditching and subsoiling . ast a ditch through swampy ground punch a row of holeswith a bar an inch and a half in diameter down to within four inchesof the grade of the ditch, spacing them from eighteen to twenty-fourinches apart, and in such a position that the bottoms of the holes willfollow the center line of the ditch. Some authorities put the holesstraight down while others believe it best to have them on an angle of45 to 70 degrees, all pointing toward the same side
Du Pont farmer's handbook; instructions in the use of dynamite for clearing land, planting and cultivating trees, drainage, ditching and subsoiling . ast a ditch through swampy ground punch a row of holeswith a bar an inch and a half in diameter down to within four inchesof the grade of the ditch, spacing them from eighteen to twenty-fourinches apart, and in such a position that the bottoms of the holes willfollow the center line of the ditch. Some authorities put the holesstraight down while others believe it best to have them on an angle of45 to 70 degrees, all pointing toward the same side of the ditch. Itis probable that the latter plan usually cleans out the ditch better. Italso throws most of the earth in the direction that the holes arepointed. When the holes have been punched for four or five hundredfeet, or for the entire ditch if it is shorter than that, from one-half toone I Y4 X 8-inch cartridge of Hercules 60% Dynamite should bedropped into each hole and pushed firmly to the bottom with awooden stick. The charging of the holes should be started at theends of the ditch and finished at the middle. The three last holes 48. 1. BORING THE HOLES FOR A DITCH
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Keywords: ., bookcentury1900, bookdecade1910, bookiddup, booksubjectexplosives
