476 
Bok I. 
OXIDES 
Therefore carbonic oxide contains 26 carbon 
74 oxygen 
100 
Charcoal is composed of 64.3 carbon 
35.7 oxygen 
100.0 
Therefore 26 parts of carbon, in order to form char 
coal, must combine with 14 parts of oxygen; conse 
quently carbonic oxide is composed of 40 charcoal 
60 oxygen. 
100 
Hence it follows that carbon combined with one dose 
of oxygen constitutes charcoal; combined with two doses 
it constitutes carbonic oxide. The first dose is 0.54, 
the second 2.31. Therefore 
Carbon. Oxygen. Charcoal. 
Oxygen. Carbonic Oxide. 
1 + 0.54 - 1.54 
1.55 + 2.31 — 3.86. 
Carbonic oxide was confounded with carbonated hy 
drogen gas, till Mr Cruickshank published his examina 
tion of it.. It appears from his experiments, that it 
sometimes contains a little carbonated hydrogen gas 
mixed with it. 
SECT. II. 
OF WATER. 
WATER is a well-known liquid, found in abundance 
in every part of the world, and absolutely necessary for 
the existence of animals and vegetables.