Should not men be as careful of the moral atmosphere of their lives as
of the air in their rooms?
Mr. John Aitken, a well-known investigator of the atmosphere,
made a series of experiments on the number of dust particles in
ordinary air. His results show that outside air, after a wet
night, contained 521,000 dust particles per cubic inch; outside
air in fair weather contained 2,119,000 particles in the same
space; that near the ceiling contained 88,346,000 particles per
cubic inch. The air collected over a Bunsen flame contained no
less than 489,000,000 particles per cubic inch. The numbers for
a room were got with gas burning in the room, and at a height
of four feet from the floor. These figures, tho not absolute,
show how important is the influence of a gas-jet on the air we
breathe, and the necessity for good ventilation in apartments.
Mr. Aitken remarks that there seem to be as many dust particles
in a cubic inch of air in a room at night when gas is burning
as there are inhabitants in Great Britain, and that in three
cubic inches of the gases from a Bunsen flame there are as many
particles as there are people in the world.--_Cassell’s Family
Magazine._
(1568)
=Impurities, Atmospheric=--See SOOT.
=Impurities Tested=--See TESTS.