184 Mr. Ray to Dr. Robinfon. 



If there be no fuch, but Bodies are infinitely divi- 

 sible, how can there be any Conftancy in Generations 

 or Productions ? 



Why are there not infinite new concrete and 

 mix'd Bodies daily produc'd, and as many loft? 



For if Bodies be infinitely divifible, Figures being 

 infinite, the Particles whereunto they are divided 

 muft probably be of infinite Figures, and few alike 3 

 and why ftiould thofe of the fame Figure convene ? 



How come Bodies to be divifible^ even by Fire, 

 into great Numbers of Parts, either really homoge- 

 neous, or feemingly fo* and not rather into infinite 

 . Varieties of Particles 5 as when a Man with the for- 

 cible Stroke of a Hammer breaks, for Example, a 

 Brick, it flies into innumerable Parts of different Fi- 

 gures, pei haps fcarce any two like? 



How come there to be fuch great Aggregates of 

 Bodies of the fame Kind, as Water, Earth, Air? 



Whereas you fay, the fame Particles, by various 

 Tranfpofitions, Divifions, Motions, I5V. may put 

 on different Faces, and ftir up in us various Percepti- 

 ons 3 I anfwer, that I cannot imagine any other Dif- 

 ference of Bodies, but what proceeds from the Mo- 

 tions of Figures of their component Particles. 



From the Motions of them can come nothing but 

 a greater or lefs Meafure of Fluidity 5 therefore all 

 other Varieties muft arife from their Figures. From 

 the Figures of homogeneous Particles, or fuch as are 

 of the fame Shape, no confiderable Varieties can 

 proceed. For, from fuppofe a Bag of Shot, perfe£i- 

 ly fpherical and folid, ftiould I fhalce or move them 

 to the World's End, I fhould get a Body of no other 

 Texture than I had at firft y tho' in Bodies of other 

 figured Particles there might poffibly be Variety em 

 Textures, from the Situs of the component Parti- 

 cles, in refpecl of each other. Yet this is not likely ? 

 becaufe it is very difficult to fet the Particles, all or 

 moft of them, in one and the fame Situs one to ano- 

 ther, 



