Dodge, Mary Mapes, 1830-1905 · [New York : Scribner & Co.] · leaf 616
A POWDER-MILL—THE BUILDINGS AND DEFENSES. per, steel and brass, but never iron and iron, or Holes are made in the ground near the vinsteel and steel. Many other ingenious precautions and in them small quantities of dynamite are ( j877.] GUNPOWDER. 5^5 f … AN EXPLOSION. ided, loosening the earth to the depth of seveneight feet—thus letting in air and moisture to: roots. Then there is another branch of the family calledulminates. The powders for percussion-caps:d on shot-guns are made of one of these,ese explosives, properly directed, do so muchj- re…
Children's literature
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