Barringer’s Description of Minerals of Commercial Value. Oblong, morocco, 2 50 Boyd’s Resources of Southwest Virginia 8vo, 3 00 Map of Southwest Virginia Pocket-book form, 2 00 Brush’s Manual of Determinative Mineralogy. (Penfield.) 8vo, 4 00 Chester’s Catalogue of Minerals 8vo, paper, 1 00 Cloth, 1 25 Dictionary of the Names of Minerals 8vo, 3 50 Dana’s System of Mineralogy Large 8vo, half leather, 12 50 First Appendix to Dana’s New “System of Mineralogy.” Large 8vo, 1 00 Text-book of Mineralogy 8vo, 4 00 Minerals and How to Study Them 12mo, 1 50 Catalogue of American Localities of Minerals Large 8vo, 1 00 Manual of Mineralogy and Petrography 12mo, 2 00 Eakle’s Mineral Tables 8vo, 1 25 Egleston’s Catalogue of Minerals and Synonyms 8vo, 2 50 Hussak’s The Determination of Rock-forming Minerals. (Smith.) Small 8vo, 2 00 Merrill’s Non-metallic Minerals: Their Occurrence and Uses 8vo, 4 00 * Penfield’s Notes on Determinative Mineralogy and Record of Mineral Tests 8vo, paper, 0 50 Rosenbusch’s Microscopical Physiography of the Rock-making Minerals. (Iddings.) 8vo, 5 00 * Tillman’s Text-book of Important Minerals and Rocks 8vo, 2 00 Williams’s Manual of Lithology 8vo, 3 00 =MINING.= Beard’s Ventilation of Mines 12mo, 2 50 Boyd’s Resources of Southwest Virginia 8vo, 3 00 Map of Southwest Virginia Pocket-book form, 2 00 * Drinker’s Tunneling, Explosive Compounds, and Rock Drills 4to, half morocco, 25 00 Eissler’s Modern High Explosives 8vo, 4 00 Fowler’s Sewage Works Analyses 12mo, 2 00 Goodyear’s Coal-mines of the Western Coast of the United States 12mo, 2 50 Ihlseng’s Manual of Mining 8vo, 4 00 ** Iles’s Lead-smelting. (Postage 9c. additional.) 12mo, 2 50 Kunhardt’s Practice of Ore Dressing in Europe 8vo, 1 50 O’Driscoll’s Notes on the Treatment of Gold Ores 8vo, 2 00 * Walke’s Lectures on Explosives 8vo, 4 00