Water - it's impurities, gathered from the air and earth.

Air

- T he air, then, is the carrier of the myriads of microscopic germs , which have so large an in
fluence in the production of human maladies. They lie in wait for opportunityto exercise their
baneful purposes, needing only heat and moisture, or any form of decaying or putrefying substances for fructification.

- Surgeon s recognize the danger of allowing atmospheric air to penetrate into wounds or the
interior of the human organism, lest it be loaded with pathogenic germs.

- It has been estimated that a single cubic inch of Space will contain germs of aver
age size. They increase by fission
,
at the rate of one
division every hour. Hence a single one becomes
the parent of every 24 hours. and the
causative parent of in that length of time.
A very interesting investigation has been instituted
near Paris for estimatin g the microbes in atmospheric
air
, and an ingenious trap continually set to catch
them. A cubic metre of air in the laboratory is
found to contain on an average 53 0microbes
, while a
cubic metre ofair in the central part of the city con
tains in the sewers in Old houses 40,
000
, and in the old Hospital of Pitie
, of Paris.

Source: Water - it's impurities, gathered from the air and earth. The organisms that grow in it and the modern methods of purification. Author: O.W.Moore, M.D.,