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After this subtle soapy matter, nitrogen original: "Stickluft," literally "choking air." A standard 18th-century term for nitrogen gas. extracts a fatty, acidic essence from the carbon, and this fatty, acidic essence is actual heat-matter, or heat in a bound state, just as light-matter is light in a bound state.
The residue of the carbon remaining after these two extractions is the non-combustible element, the basis of fire, in which the heat-matter is held fast.
If one ignites 7 to 8 grains A grain is a traditional unit of weight, approximately 65 milligrams. of phosphorus under a proportioned glass bell, one will observe that a thick, white smoke rises, which is gradually consumed, leaving behind a white, highly volatile sublimated salt in the upper part, and that a red, fatty essence remains at the bottom of the vessel.
The sublimated white salt is so volatile that, if the proportion between the glass and