CLASSIFICATION

Department I-Mining and Metallurgy .

MINERALS, ORES, STONE , MINING PRODUCTS.

CLASS ioo. —Minerals, ores, etc. Metallic and noti-metallic minerals, exclusive ofcoal and oil. Collections of minerals systematically arranged; collec-tions of ores and associated minerals; geological collections.

CLASS ioi. —Mineral combustibles. Coal, anthracite, semi-bituminous, and bitu-minous, coal-waste and pressed coal; albertite, asphalt, and asphalticlimestone; bitumen, mineral tar, crude petroleum.

CLASS 102.—Building stones, marbles, slates, etc. Rough, hewn, sawn, or polished,for buildings, bridges, walls, or other constructions, or for interior de-coration, or for furniture.

Marble—white, black, or colored—used in building, decoration,statuary, monuments, or furniture, in blocks or slabs not manufactured.

CLASS 103.—Lime, cement, and hydraulic cement, raw and burned, accompaniedby specimens of the crude rock or material used, also artificial stone,concrete, beton.

Specimens of lime mortar and mixtures, with illustrations of theprocesses of mixing, etc. Hydraulic and other cement.

Beton mixtures and results, with illustrations of the processes.

Artificial stone for building purposes, building blocks, cornices, etc.

Artificial stone mixtures, for pavements, walls, or ceilings.

Plasters , mastics, etc.

CLASS 104.—Clays, kaolin, silex, and other materials for the manufacture of porce-lain faience, and of glass, bricks, terra cotta and tiles, and fire brick.Refractory stones for lining furnaces, sandstone, steatite, etc., and re-fractory furnace materials.

CLASS 105.—Graphite, crude and refined; for polishing purposes; for lubricating,electrotyping, photography, pencils, etc.

Class 106.—Lithographic stones, hones, whetstones, grindstones, grinding and pol-ishing materials, sand quartz, garnet, crude topaz, diamond, corundum,emery in the rock and pulverized, and in assorted sizes and grades.

Class 107.—Mineral waters, artesian well water, natural brines, saline and alkalineefflorescences and solutions. Mineral fertilizing substances, gypsum,phosphate of lime, marls, shells, coprolites, etc., not manufactured.

METALLURGICAL PRODUCTS.

Class no.—Precious metals.

Class III.—Iron and steel in the pig, ingot, and bar, plates and sheets, with speci-mens of slags, fluxes, residues, and products of working.

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