WHERE THEY LIVE 15 
WHERE THEY LIVE 
Most bacteria grow out of doors on anything 
that is moist and that contains food, either ani- 
mal or vegetable. All decay is the result of the 
growth of bacteria and moulds. Bacteria reduce 
all living things to the simple earthly elements 
of which they were formed. 
Great numbers of bacteria are attached to all 
particles of decaying matter. Each speck of dust 
blown by the air is a tiny airship carrying a 
crew of living bacteria. Cow-feed and bedding 
are coated with bacteria which feed upon them. 
They follow feed into the intestines of the dairy 
cows and grow inside the cow in great numbers. 
The discharges from the intestines of dairy cows 
are filled with uncounted millions of bacteria. 
The dust of manure, the floor of the cow stable, 
and the manure on the flanks of dairy cows are 
loaded with intestinal bacteria. 
Old milk inside of milk pails, milk cans, or on 
milk utensils, is the dwelling-place of enormous 
numbers of bacteria waiting to contaminate and 
injure any clean milk that may touch them. 
