System of Mineralogy Large 8vo, 12 50 half leather, Text-book of Mineralogy 8vo, 4 00 Douglas’s Untechnical Addresses on Technical Subjects 12mo, 1 00 Eakle’s Mineral Tables 8vo, 1 25 * Eckel’s Building Stones and Clays 8vo, 3 00 Goesel’s Minerals and Metals: A Reference Book 16mo, mor. 3 00 * Groth’s The Optical Properties of Crystals. 8vo, 3 50 (Jackson.) Groth’s Introduction to Chemical Crystallography 12mo, 1 25 (Marshall) * Hayes’s Handbook for Field Geologists 16mo, mor. 1 50 Iddings’s Igneous Rocks 8vo, 5 00 Rock Minerals 8vo, 5 00 Johannsen’s Determination of Rock-forming Minerals in 8vo, With 5 00 Thin Sections Thumb Index * Martin’s Laboratory Guide to Qualitative Analysis 12mo, 0 60 with the Blow-pipe Merrill’s Non-metallic Minerals: Their Occurrence and 8vo, 4 00 Uses Stones for Building and Decoration 8vo, 5 00 * Penfield’s Notes on Determinative Mineralogy and 8vo, paper, 0 50 Record of Mineral Tests Tables of Minerals, Including the Use of 8vo, 1 00 Minerals and Statistics of Domestic Production * Pirsson’s Rocks and Rock Minerals 12mo, 2 50 * Richards´s Synopsis of Mineral Characters 12mo, mor. 1 25 * Ries’s Clays: Their Occurrence, Properties and Uses 8vo, 5 00 * Ries and Leighton’s History of the Clay-working 8vo, 2 50 industry of the United States * Rowe’s Practical Mineralogy Simplified 12mo, 1 25 * Tillman’s Text-book of Important Minerals and Rocks 8vo, 2 00 Washington’s Manual of the Chemical Analysis of Rocks 8vo, 2 00 MINING. * Beard’s Mine Gases and Explosions Large 12mo, 3 00 * Crane’s Gold and Silver 8vo, 5 00 * Index of Mining Engineering Literature 8vo, 4 00 * 8vo, 5 00 mor. * Ore Mining Methods 8vo, 3 00 * Dana and Saunders’s Rock Drilling 8vo, 4 00 Douglas’s Untechnical Addresses on Technical Subjects 12mo, 1 00 Eissler’s Modern High Explosives 8vo, 4 00 Goesel’s Minerals and Metals: A Reference Book 16mo, mor. 3 00