OUTLINES 



NATURAL PHILOSOPHY- 



INTRODUCTION, 



SECT. I. 



1. JL HILOSOPHY is the knowledge of the general 

 laws observed by the phenomena of nature, whe- 

 ther in the intellectual or material world. 



2, In the material world, the action which takes 

 place among bodies, either produces a permanent 

 change in the internal constitution of those bodies, 

 or it does not. In the former case, the phenomena 

 belong to CHEMISTRY, in the latter to NATURAL 

 PHILOSOPHY. 



The action of the same cause may, by a change of cir- 

 cumstances, pass from being an object of the one of 

 these sciences to become an object of the other. The 

 action of heat, when it expands or contracts the di- 

 mensions of bodies, belongs to Natural Philosophy ; 



VOL. I. (2) A when 



