CHAPTER XVI. 



ON COLORIFICATION IN GENERA^, 



On the means % which Color is produced, 

 the source from whence it i$ Derived, 



ALTHOUGH the art of analysis irj these latter 

 days has attained considerable degrees of per- 

 fection, and a multitude of tests have been dis- 

 covered, by the aid of which, a variety of bo- 

 dies have been decomposed, and simplified to 

 a greater extent than before; it must, never- 

 theless, be acknowledged, that none of the 

 skilful artists, who have labored in t)ie pursuit, 

 have as yet been able to exhibit to our view, 

 the real constitution of the primary particles of 

 matter; insomuch, that natural philosophers, 

 Sit this moment, either confess their total ignor 

 jrance, or are at variance with each other on 



