The Earth-inflammables will be such as are solid and burn, without becoming fluid, e. g. Common Coal. The Salt-inflammables will either be or become fluid before they undergo combustion, and are readily converted of themselves into acids, e. g. Animal and Vegetable Fats. The Inflammable-inflammables will be of a sulphurous character, solid or fluid, fragile, electric, fetid and fluid before they burn. These properties are found in the Resins. The Ore-inflammables are those which, independently of their combustibility, possess pre-eminently one property of metals, namely their non-transparency, or coloration, e. g. the Pigments or colouring matters from the organic kingdoms.
1-4. Earth-Coals Common-coal, a mixture of coal and earths. 5. Salt-Coals Gunpowder, viz. a combination of charcoal with a salt. 6. Inflammable-Coals Glance-coal, viz. carbon without earths. 7. Ore-Coals Black-lead, or carburet of iron. 8. Water-Coals Peat-bog and brown or Common coal? 9. Air-Coals Lignite or wood-coal? 10. Fire-Coals Animal carbon, fibrine.
_Salt-Inflammables--Adipaceous or Unctuous bodies._
1-4. Earth-fats Spermaceti? Tallow. 5. Salt-fats Lard and Train-oil? 6. Inflammable-fats Butter? 7. Ore-fats Wax? 8. Water-fats Vegetable oils? 9. Air-fats Desiccative or drying oils. 10. Fire-fats Greasy oils.
1-4. Earth-resins Sulphur, Phosphorus. 5. Saline-resins Chloride of sulphur, Chlorate of Sulphur. 6. Inflammable-resins Mineral-pitch, Amber, Turpentine. 7. Ore-resins Balsams. 8. Water-resins Gum-resins. 9. Air-resins Ætherial oils. 10. Fire-resins Alcohol, Æther.
1-4. Earth-pigments Ochre-pigments. 5. Salt-pigments Soluble-pigments from roots and wood, such as Krapp and Dier's-weed. 6. Inflammable-pigments Retinoid-pigments from roots and wood, such as Dragon's-blood, Turmeric. 7. Ore-pigments Indigo or devil's-dye. 8. Water-pigments Sap-colours, such as Sap-green, Oak-gall. 9. Air-pigments Flower colours, such as Saffranon and Saffron. 10. Fire-pigments Animal colours, as Scarlet and Blood-red.
543. The metals are again easier of arrangement, because they have a resemblance to earths and have been better worked out both in chemistry and mineralogy. They divide very naturally into--
1. Earth-Ores Ochres, combinations of metals with oxygen. 2. Salt-Ores Haloids, insoluble combinations of metals with acids. 3. Inflammable-Ores Blendes, combinations of metals with Sulphur, Phosphorus, and Selenium. 4. Metallic-Ores Pure metals.