ORDER II. _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. ORDER III. _Inflammable-Inflammables--Resins._ 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. ORDER IV. _Ore-Inflammables--Pigments._ 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. _CLASS IV._ FIRE-EARTHS--ORES. 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. The principles of this arrangement which has been at present pretty generally followed, were first published in my essay 'Das naturliche System der Erze,' 1809. In order to gain a proper insight into the serial gradation of all the families we must first regard the 4th order. ORDER I. _Earth-Ores--Ochres._