Page:An Essay on the Principle of Population (1798).djvu/132

106 more left them than went to them. In the year 1760, they were increased to half a million. They had therefore all along doubled their own number in twenty-five years. In New Jersey the period of doubling appeared to be twenty-two years; and in Rhode island still less. In the back settlements, where the inhabitants applied themselves solely to. agriculture, and luxury was not known, they were found to double their own number in fifteen years, a most extraordinary instance of increase. Along the sea coast, which