Fohs, Ferdinand Julius 1884- creator text kyu 1907 monographic eng

print

2 p. l., [iii]-viii p., 1 l., 296 p. 2 front. (incl. fold. map) plates (part fold.) diagrs. 27 cm. with notes on the production, mining and technology of the mineral in the United States, also some data concerning barite deposits, by F. Julius Fohs. Fluorspar Kentucky Barite Kentucky QE115 .A243 no. 9 gs 09000107 Library, U.S. Geological Survey. 780930 20260227111308.0 gs 09000107