Principle Of Population
Population, when unchecked, will double itself every twenty-five years.
"...Supposing the present population equal to a thousand million, the human species would increase as the numbers 1, 2, 4, 8,16, 32, 64, 128, 256, and subsistence as 1, 2, 3, 4, 5, 6, 7, 8, 9...