The building and ornamental stones of North Carolina (1906)
Watson, Thomas L. (Thomas Leonard), 1871-1924, Laney, Francis Baker, 1875-1938, Merrill, George P. (George Perkins), 1854-1929 · Raleigh, [N.C.] : E.M. Uzzell, Public Printer · leaf 346
sult is that natural blocks, thougheasily obtained, are of limited size and of such irregular shape that everyone must be plugged or otherwise squared and dressed down before it isavailable. A quarry of this type cannot compete with such as are de-scribed above in the production of blocks of… … METHODS OF QUARRYING AND WORKING STONE. 253 uated as to have particularly favorable facilities in the way of extractionand transportation. In the preliminary work of opening a quarry the diamond drill mayoften be used to advantage, particularly in marble and sandstone beds.By means of this drill,…
Building stones · Quarries and quarrying
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