CONTENTS OF THE THIRD VOLUME. Vli 



PA0K 



CHAPTER VII. APPLICATION AND CORRECTION OF THE 



OXYGEN THEORY . . . ^/157 



CHAPTER VIII. THEORY OF DEFINITE, RECIPROCAL, AND 



MULTIPLE PROPORTIONS. 

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



by Dalton ... . 162 



Sect. 2. Reception and Confirmation of the Atomic Theory 1 66 

 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 o"F THE FIXITY OF CRYSTALLINE 

 ANGLES, AND THE SIMPLICITY OF THE LAWS OF DE- 

 RIVATION . . . . . . . . 222 



CHAPTER III. RECEPTION AND CORRECTIONS OF THE 



HAUIAN CRYSTALLOGRAPHY . . 231 



CHAPTER IV. ESTABLISHMENT OF THE DISTINCTION OF 



SYSTEMS OF CRYSTALLIZATION. WEISS AND MOHS . 234 



