Inside Out Library · Explore
Scientific American, Vol. 30, No. 8 (February 1874) (1874)
leaf 0
re glycerin, mer, a perforator of four or five feet diameter. This was tions, for some years; more recently it has been extended to when undiluted, is a water-extracting body. It should there- the western roads. The aggregate length of main and tried in the Vaugirard quarries near Paris, and made… … THE BATTERING RAM AS A TUNNEL BORER © 1874 SCIENTIFIC AMERICAN, INCPatents · Iron · Improved · Consists · Ore · Scientific American · Asks · Cash gift · Steam boiler · Iron mountain · Red hematite · Sulphuric acid · Patent office · Sewing machine · Steam engine · Specular ore
Internet Archive · Public domain (published before 1931). Free to use for anything.
More pictures from Scientific American, Vol. 30, No. 8 (February 1874)
More like this
