Johnson's natural philosophy and key to philosophical charts : illustrated with 500 cuts; being reduced photographic copies of all the diagrams contained in the author's philosophical series of indestructible school charts ; for the use of schools and families (1878)
ce in space. -Ilie atmosphere does notand water; therefore, rela-eartli. On a twelve-inchinch in depth. It is thebecomes exceedingly rare-to tlie earth and kept ine force, by gravity. Andat the rate of 68,000 milesshowing that the planets 1^^. Composition of the atmosphere.—Air is chiefly com-posed… … life and combustion, it would, of itself alone, so Fia. 24. intensify combustion and the animal functions,as to destroy life, and burn up the world; whilenitrogen, of itself, would not support life andcombustion at all. Hence, the purpose of nitro-sren seems to be to dilute the oxvsfen. Respiration…
Physics · Astronomy
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