OUTLINES 



O P 



GEOLOGY. 



INTRODUCTION, 



1. Geology is that branch of Physical Science which 

 treats of the constitution of the earth we inhabit. 



2. Geology has for its objects : 



(a) To inquire into the form and external characters of 

 our globe ; 



(j>) To examine the nature and relative position of the 

 materials which compose its external crust ; 



(c) To investigate, as far as may be in our power, the 

 manner and order in which these materials have assumed 

 their present position. 



3. Geology is therefore divided into three distinct depart- 

 ments : 



1 . Physical Geography ; 



2. Geognosy; 



3. Geogeny, 



