Handbook of Explosives for Farmers, Planters, Ranchers How to Clear Land of Stumps, Trees or Boulders, Dig Ditches, Grade Roads, Excavate Cellars and Foundation Trenches, Dig Holes for Poles and Posts, Break Up Hardpan or Other Hard Soil, Plant and Cultivate Fruit Trees, Start Log Jams and Ice Gorges with Stumping Powders ...Canadian Explosives Limited1911