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Scientific American, Vol. 25, No. 18 (1871) (1871)

leaf 3

An illustration from Scientific American, Vol. 25, No. 18 (1871), 1871, leaf 3
the power of projection of firearms. Great capable of inclosing the metal, so as to protect it from atmos- or of those mixtures of kerosene with lighter petroleum pro- as are the evils of wars, the use of gunpowder has shortened pheric action, and then placing the molds in a hot oven and ducts,… … Mr. Richard Crocker, of Marshalltown, Iowa, has patented The construction of the lamp is such that the reservoir of and brittle. oil is placed below and to one side of the burner, when only Asa further means of softening the castings, the inventor a new way of cleaning the rotary knives of a strap…

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