AMERICAN DEPARTMENT. INDUSTRIAL PALACE. GROUP I. Mining, Quarrying, and Metallurgy. Mineral Fuels (Coals, Shales, and Mineral Oils). Mineral Ores and Metals. Other Minerals (as Salt, Sulphur, Graphite, &c.); not including Building Materials; vide Group 18. Natural Alloys. Drawings and Models of Objects Relating to Mining, Metallurgy, and Mineral Industry, Mining Engineering, Surveying and Map Maring. Geologicai. Works, and Geological Maps, &c. Tools and Inventions for Mining and Metallurgy— for Underground and Surface Work. Statistics of Production. 1 THE NEW-ORLEANS ACADEMY OF SCIENCES, New-Orleans, Loui siana. Specimens of the Natural History of the State of Louisiana. Sammlung der Naturproductevon Louisiana. Specimens de l’histoire naturelle de la Louisiane. 2 CINCINNATI, ROCKPORT & SOUTH-WESTERN RAILWAY, Cincinnati, Ohio. Block Coal, Bituminous Coal, Whetstone Grit, Grindstone Grit. Stükkohle, bituminöse Kohle, Wetz- und Schleifsteinsand. Blocs de Houille, Houille bitumineuse, Gres pour pierre ä repasser, Pierre meuliere. 3 JOSEPH WHARTON, Philadelphia, Pennsylvania. Metallic Nickel, Cobalt, Nickel and Cobalt Salts, Castings of Nickel and Cobalt, Blue Vitriol, Copperas; Ore of Gap Mine, Pennsylvania, source of the above"- products. Matte of Gap Furnace and Pure Zinc. Metallisches Nickel und Kobalt-Nickel und Kobalt-Salze, Gussstücke aus Nickel und Kobalt, Kupfer und Eisenvitriol, Erz von der Gapgrube (Quelle der obenstehenden Producte), Rohstein und reines Zink. Nickel, Cobalt, Sels de Nickel et de Cobalt, Lingots de Nickel et Cobalt, Vitriol bleu, Couperose; Minerais des mines de Gap et de Pennsylvanie d’ou sont retires les produits susnommes, Matte de Gap et Zinc pur. 4 E. B. WARD, Detroit, Michigan. Iron, Copper, and Silver Ores. Eisen-, Kupfer- und Silbererze. Minerais de Fer, de Cuivre et d’Argent. 5 CHARLES M. NES, York, Pennsyl vania. Silicon Steel, with Furnace and Steam Hammer used in its manufacture. Siliciumstahl und die Methode seiner Dar stellung. Acier siliceux, avec Fourneaux etMarteaux ä vapeur emploves pour le fabriquer.