650. Rawson, Sir Wm. The Present Operations and Future Prospects of the Mexican Mine Associations. Paper, 88 pp. London, 1825.$1.25
651. Roberts, W. F. Map of the Anthracite Regions of Pennsylvania, embracing the first and second and part of the Wyoming Coal Fields and Montour Iron Ore Range. 30 × 48 inches, linen mounted, in 4to holder. Phila., 1849.$2.75
652. Ronelle, John, M. D. A Complete Treatise on the Mineral Waters of Virginia, Their Situation, Natural History, Analysis and Use in Medicine. 68 pp., stitched, rare Cist imprint. Phila., 1792.$1.00
653. Schoolcraft, H. R. View of the Lead Mines of Missouri. Observations on Mineralogy, Geology, Geography, Antiquities, Soil, etc., of Missouri and Arkansas. 3 engravings, orig. boards, uncut, perfect, clean copy of this scarce work. Name cut from title. N. York, 1819.$3.50
654. Sidney, S. Three Colonies of Australia. N. S. Wales, Victoria and S. Australia; their Copper Mines and Gold Fields. London, 1852.$1.50
655. Sierra Leone Company. Substance of the Reports Delivered by the Court of Directors of, to Gen. Court of Proprietors, 1794-95. 12mo, paper, covers, two titles, 168+24 pp., folding map, first American ed., rare. Phila., 1795.$2.00
656. Silliman, Prof. Description of the Recently Discovered Petroleum Region in California, with a Report on the Same. 24 pp., folded map, stitched, very scarce. N. York, 1865.$1.25
657. Steel, J. H. (M. D.) Analysis of the Mineral Waters of Saratoga and Ballston, with History of their Discovery and Settlement and Observations on the Geology of the Vicinity. 12mo, half roan, 203 pp. Saratoga Springs, 1831.$1.50
658. Vogt, Carl. Naturliche Geschichte der Schopsung des Metalls, der Erde und der auf ihr besindlichen Organismen, etc. Half morocco, 134 illus., 322 pp. Braunschweig, 1851.$1.50
659. Watson, Thos. Leonard. Mineral Resources of Virginia. Tall 8vo, 618 pp., illus., maps, fine copy. Lynchburg, Va., 1907.$2.50