VI CONTENTS. 



CHAP. VI. 



View of the external and internal general Cha- 

 racters by which Rocks are distinguished 95 



CHAP. VII. 



On the external Configuration of Rocks 99 



\ 



CHAP. VIII. 



On the internal Structure of Rocks 119 



CHAP. IX. 



On the Texture, Fracture, and other remaining 

 general Characters of Rocks 146 



CHAP. X. 



Remarks on the Composition of Rocks, with a 

 Catalogue of the simple Minerals of which 

 they are composed 162 



CHAP. XI. 



Enumeration of the several Rocks, arranged 

 under the different Minerals which enter into 

 their composition 174 



CHAP. XII. 



Remarks on the Associations and Transitions 

 which occur in Nature between several dif- 

 ferent species, or families, of Rocks 179 



