. Handbook for rangers & woodsmen . Fig. 65.—Snakeholing. directly against and at or near the exact center of the underside. It must be well tamped and care must be taken to see thatit is not placed at a point where wet or soft dirt may allow theforce to be expended downward rather than upward and againstthe boulder. See Fig. 65. (For Table of Blasting Charges,see page 361, Appendix.) Blasting Out Trees and Stumps.—The chief trouble in thisoperation usually lies either in the fact that the charge is placedat the bottom of a hole drilled too straight dowTi and not under 82 HANDBOOK FOR RANGERS
. Handbook for rangers & woodsmen . Fig. 65.—Snakeholing. directly against and at or near the exact center of the underside. It must be well tamped and care must be taken to see thatit is not placed at a point where wet or soft dirt may allow theforce to be expended downward rather than upward and againstthe boulder. See Fig. 65. (For Table of Blasting Charges,see page 361, Appendix.) Blasting Out Trees and Stumps.—The chief trouble in thisoperation usually lies either in the fact that the charge is placedat the bottom of a hole drilled too straight dowTi and not under 82 HANDBOOK FOR RANGERS AND WOODSMEN the center of the tree or else it is placed in a hole in such a waythat it is carried beyond or to one side of the tap root. Forthe correct location of a charge expected to affect the tap rootdirectly see Fig. 66. Fig. 67 shows a charge improperly placed at one side of thecenter of a tree having no large tap root. The charge should. <)iFig. 66.—Correct location of charge in tap root.
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