8 OUTLINES OF NATURAL PHILOSOPHY. 



a. For it is easily proved, on this supposition, that 

 the extension of lines ad infinitum, and their divisibi- 

 lity ad infinitum, are necessarily connected with one 

 another. 



18. The actual division of body into parts, as the 

 parts must be of a finite magnitude, must necessa-. 

 rily be limited ; it is, nevertheless, capable of being 

 carried to such extent, that the parts shall be of in- 

 credible minuteness. 



a. We have examples in the gilding of silver-wire, in 

 the propagation of odours, in the colours produced 

 by chemical solutions, &c. REAUMUR, Mem. Acad. 

 des Sc. 1713, p. 204. BOYLE de Mird SubtiUtate 

 Effluv'wrum, MUSCIIENBROEK, ubi supra, 72. 



19. All bodies are inclosed by one or more boun- 

 daries, and therefore possess figure ; they have also 

 the capacity of receiving an indefinite variety of 

 figures. 



a. Bodies differ in their capacity for receiving and 

 maintaining different figures. 



b. Some receive new figures with difficulty, but main- 

 tain them easily. Such are the bodies usually call- 

 ed solid. 



Others receive any figure easily, but cannot main- 

 tain it without the assistance of other bodies. Such 

 are the bodies usually called Jluid. 



c. Many bodies have figures, which, in their natural 

 state, are peculiar to them. This is the case not 



only 



