. Better farming with Atlas farm powder, the safest explosive, the original farm powder. Explosives in agriculture. Better Blasting of Ditches Load charges and connect wires. See that people and animals are at a safe distance, then fire. Inspect results, and throw out any big stones, roots or sods. Make more holes after calculating best loading from test, and repeat other operations. Soils. Ditches can be blasted through any kind and condition of ground except dry sand. The most economical blasting can be done in ground full of water to the surface or to within a few inches of the surface, and
. Better farming with Atlas farm powder, the safest explosive, the original farm powder. Explosives in agriculture. Better Blasting of Ditches Load charges and connect wires. See that people and animals are at a safe distance, then fire. Inspect results, and throw out any big stones, roots or sods. Make more holes after calculating best loading from test, and repeat other operations. Soils. Ditches can be blasted through any kind and condition of ground except dry sand. The most economical blasting can be done in ground full of water to the surface or to within a few inches of the surface, and of a heavy, tenacious na- ture, such as clay. Muck blasts out easily. The least economical blasting is done in sandy and other loose soils, par- ticularly when they contain no standing water. Clay is a little harder to blast out when dry or only damp than when soaked. If convenient, it pays to wait for wet weather before ditch blasting is started. When ground is full of water the cost is less in several wa\ s. The nature of the soil from the standpoint of the possibility of making a ditch by blasting (except dry sand) is not important, though it is important from the standpoint of the manner of loading. Thus a blaster or farmer can proceed to almost any field (except a sandy one in dry condition), and, after determining the size and location of the charges required, will have no difficulty in shooting out the channel. But if the natureof the soil changes halfway across the field, as, for instance, if one-half is watersoaked and the other is not, or if one part is clay and the other gravel, the manner of loading must be re-deter- mined for the new A 4-foot ditch opened out in fine shape through stiff clay in a meadow. Note the clean edges of the ditch, and how well the soil is scattered instead of banked up along the edges as it would be from plowing or shoveling. Laying Out the Ditch and Making Holes. The line which the ditch must take should be determined with al
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectexplosi, bookyear1919
