00874cam a22002651 4500 gs 29000038 DLC 20260227111333.0 780207s1928 nmuab b 000 0 eng c gs 29000038 (OCoLC)3616064 U.S. Geol. survey Library OT WaChenE DLC premarc n-us-nm TN24.N6 A232 no. 4 622.0711789 Johnston, William Drumm, 1899- Fluorspar in New Mexico. Socorro, 1928. x, 128 p. illus., maps (1 fold., in pocket) fold. table (in pocket) 23 cm. New Mexico. Bureau of Mines and Mineral Resources. Bulletin no. 4 Includes bibliographical references. Fluorspar. Bulletin (New Mexico. Bureau of Mines and Mineral Resources) ; no. 4. 26694 26694