Fluorspar deposits of Kentucky,
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.
- 1907.
- 2 p. l., [iii]-viii p., 1 l., 296 p. 2 front. (incl. fold. map) plates (part fold.) diagrs. 27 cm.
- Kentucky. Geological survey, 1904-1912. Bulletin no. 9 .