XI 



OBSERVATIONS ON THE SYSTEM, 



Calor*, or matter of heat, see p. 1. We left out 

 the termination ic, because it is not known to be an acid, 

 which is in general signified by that termination. It is 

 placed as the first Genus, from its universality; at the 

 same time we may say it will seldom be joined as the 

 characteristic of a species. The other Genera are placed 

 according to their gravity, and it may not be amiss to say 

 that 



Hydrogen is the inflammable part of water, and the 

 next Genus, 



Nitrogen, is a part in the composition of atmospheric 

 air, which, without the wholesome genus placed next to it 

 (Ogygen) being combined with it, would be unfit for 

 respiration. 



Oxygen is the other component part of water. 



Phosphorus is combustible at the temperature of the 

 common atmosphere, and is in nature sometimes combined 

 with Lime and Earths and Metals, as Phosphate of Lime, 

 and Lead — see p. 173 — frequently found also in animal 

 sjime, and bones. 



* We have placed the lightest first, as appearing nio§t natural. 



