CONTENTS OF THE THIRD VOLUME. vn 



PAQK 



CHAPTER VII. APPLICATION AND CORRECTION OP THE 



OXYGEN THEORY . . . 157 



CHAPTER VIII. THEORY OF DEFINITE, RECIPROCAL, AND 



MULTIPLE PROPORTIONS. 

 Sect. 1. Prelude to the Atomic Theory, and its Publication 



byDalton ... . 162 



Sect. 2. Reception and Confirmation of the Atomic Theory 166 

 Sect. 3. The Theory of Volumes. Gay-Lussac . . 170 



CHAPTER IX. EPOCH OF DAVY AND FARADAY. 

 Sect. 1. Promulgation of the Electro- chemical Theory by 



Davy 172 



Sect. 2. Establishment of the Electro-chemical Theory by 



Faraday 181 



Sect. 3. Consequences of Faraday's Discoveries . . 192 

 Sect. 4. Reception of the Electro-chemical Theory . . 194 



CHAPTER X. TRANSITION FROM THE CHEMICAL TO THE 



CLASSIFICATORY SCIENCES . . 197 



THE ANALYTICO-CLASSIFICATORY SCIENCE. 



BOOK XV. 

 HISTORY OF MINERALOGY. 



INTRODUCTION. 



Sect. 1. Of the Classificatory Sciences . . . 211 



Sect. 2. Of Mineralogy as the Analytico-classificatory 



Science ...... 213 



CRYSTALLOGRAPHY. 

 CHAPTER I. PRELUDE TO THE EPOCH OF DE LISLE AND 



HAUY . . . .215 



CHAPTER II. EPOCH OF ROME DE LISLE AND HAUY. 

 ESTABLISHMENT OF THE FIXITY OF CRYSTALLINE 

 ANGLES, AND THE SIMPLICITY OF THE LAWS OF DE- 

 RIVATION ... 222 



CHAPTER III. RECEPTION AND CORRECTIONS OF THE 



HAUI'AN CRYSTALLOGRAPHY . . 231 



CHAPTER IV. ESTABLISHMENT OF THE DISTINCTION OF 



SYSTEMS OF CRYSTALLIZATION. WEISS AND MOHS . 234 



