Tri-nitro-glycerin : as applied in the Hoosac Tunnel, submarine blasting, etc. ..
George M. Mowbray's 1872 account of nitroglycerin use, published in North Adams, Massachusetts, for engineers and tunnel contractors, covering blasting at the Hoosac Tunnel and submarine work. The pictures show rock-drilling machinery, a stereo photograph of a tunnel face, and a hoisting cage in a shaft, which a designer could use for industrial scenes of nineteenth-century mining and construction.
