Sect. 4. Of Iron 47 Sect. 5. Of Tin 52 Sect. 6. Of Lead 53 CHAP. VIII. _Of Quick-Silver_ 58 CHAP. IX. _Of the Semi-Metals._ Sect. 1. Of Regulus of Antimony 62 Sect. 2. Of Bismuth 69 Sect. 3. Of Zinc 70 Sect. 4. Of Regulus of Arsenic 72 CHAP. X. _Of Oil in general_ 76 Sect. 1. Of Charcoal 77 Sect. 2. Of Soap 78 CHAP. XI. _Of the Several Sorts of Oils._ Sect. 1. Of Mineral Oils 79 Sect. 2. Of Vegetable Oils 80 Sect. 3. Of Animal Oils 82 CHAP. XII. _Of Fermentation in general_ 83 CHAP. XIII. _Of the Spirituous Fermentation_ 84 CHAP. XIV. _Of the Acetous Fermentation_ 90 Sect. 1. Of Vinegar 91 Sect. 2. Of Tartar 93 CHAP. XV. _Of the Putrid Fermentation, or Putrefaction_ 96 CHAP. XVI. _A general View of Chymical Decomposition_ 101 Sect. 1. The Analysis of Vegetable Substances 102 Emulsions 104 Sect. 2. The Analysis of Animal Substances 106 Sect. 3. The Analysis of Mineral Substances 108 Of the Pyrites 110 Of Ores 112 CHAP. XVII. _Explanation of the Table of Affinities_ 119 CHAP. XVIII. _The Theory of Constructing the Vessels most commonly used in Chymistry_ 126 CHAP. XIX. _The Theory of Constructing the Furnaces most commonly used in Chymistry_ 133 _Of Lutes_ 147 Elements of the PRACTICE of CHYMISTRY. Introduction 153 PART I. OF MINERALS. SECTION I. Operations performed on Saline Mineral Substances. CHAP. I. _Of the Vitriolic Acid._ 1. PROCESS. To extract Vitriol from the Pyrites 159 2. To extract Sulphur from the Pyrites, and other Sulphureous Minerals 162 3. To extract Alum from aluminous Minerals 165 4. To extract the Vitriolic Acid from Copperas or Green Vitriol 170 5. To decompose Sulphur, and extract its Acid, by burning it 174 6. To concentrate the Vitriolic Acid 176 7. To decompound Vitriolated Tartar by means of the Phlogiston; or to compose Sulphur by combining the Vitriolic Acid with the Phlogiston 179