The deposits of the useful minerals & rocks : their origin, form and content. vol.2 / F. Beyschlag, J. H. Vogt, P. Krusch ; translated by S. J. Truscott. Beyschlag, F. 1856-1935. Vogt, Johan Herman Lie, 1858-1932, joint author. Krusch, Johann Paul, 1869- joint author. Truscott, S. J. (Samuel John), 1870- tr. Mines and mineral resources Ore deposits TN263 .B53 553.1 BED London : Macmillan, 1916. 1916. 1914 Text 2 v. : eng