When certain species of animals, like rabbits and lemmings, increase beyond the limit desired by Nature in any locality, epidemic diseases suddenly appear and stop this disturbance of natural balance.
In the earlier days of history the human species was subjected to similar epidemics. It seems to have been Nature's plan to allow the medical profession to take charge of this subject up to a certain point, but there are limitations which we may not be allowed to pass, because there appears to be a plan to destroy by poison various species of plants and animals which have arrived at stages of increase or of development beyond Nature's liking.
Concerning the stage of development which is to be allowed for man, we can no more anticipate the limit than we can state the reason for the presence of so many thousands of suns in space. We may simply observe the
MORRIS RT. THE COLON BACILLUS, A REGULATOR OF POPULATION *. JAMA. 1912;LVIII(9):601–603. doi:10.1001/jama.1912.04260030001001
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