1. Silicious-Ochres Metallic calces with silicious earth, as Lierite, Dioptase, Electric calamine. 2. Argillaceous-Ochres Clay-iron-stone. 3. Talcose-Ochres Blue-iron-stone. 4. Calcareous-Ochres Black oxyde of manganese. 5. Salt-Ochres Calces not peroxydized. Bog-iron. 6. Inflammable-Ochres Pure calces without metallic lustre, as Wolfram, Protoxide of Uranium, Rutile, Tin-stone. 7. Ore-Ochres Oxydulated, as Iron-glance, Red oxyd of Copper. 8. Water-Ochres Hydrates, as Brown-iron-stone-ore, Gray ore of manganese. 9. Air-Ochres Malm-rocks; volatilized Ochres of the difficultly fusible metals, as Umbra, Yellow earth, Earthy manganese, Black cobalt. 10. Fire-Ochres Slags, volatilized calces of the difficultly fusible metals, as oxyde of or White antimony, Protoxide of Arsenic. ORDER II. _Salt-Ores--Haloids._ Fam. 4. Earth-Haloids Fluoric-acid. 5. Salt-Haloids Boracic-acid. 6. Inflammable-Haloids Sulphuric-acid, as Sulphate of lead, Phosphoric-acid as Green and Blue phosphates of iron, Diarsenate of iron, Uran-glance, Green phosphate of Lead. 7. Ore-Haloids Chromic-acid, as Chromate of lead, Arsenic-acid, as Cube-ore, Arseniate of iron, Olivenite, Cobalt-bloom. 8. Water-Haloids Hydrochloric-acid, as Muriate of copper, Horn-silver. 9. Air-Haloids Nitric-acid. 10. Fire-Haloids Carbonic-acid, as Iron-spar, Red manganese-ore, Earthy blue-copper, Malachite, Carbonate of lead. ORDER III. _Inflammable-Ores--Blendes._ 1. Silicious-Blendes Zinc-blendes, Cinnabar, Red antimony and Ruby-silver-ore. 2. Argillaceous-Blendes Iron and Copper pyrites. 3. Talcose-Blendes Sulphuret of Titanium, Chrome, Uranium. 4. Calcareous-Blendes Sulphuret of Molybdena. 5. Salt-Blendes Copper-glance, Gray copper. 6. Inflammable-Blendes Nickel-glance, Cobalt-glance. 7. Ore-Blendes Sulphuret of Platinum. 8. Water-Blendes Gray antimony, Galena. 9. Air-Blendes Bismuth-glance, Arsenical pyrites. 10. Fire-Blendes Silver-glance-ore. ORDER IV. _Metallic-Ores.--Metals._ (Pure or reduced metals.)