Editorial note — Chapter II · AGAINST THE WATERS[16]
Reading edition
The average density of settlement of the United States was, in 1810, 17.7 persons to the square mile; in 1820, 18.9 persons; in 1860, 26.3; in 1870, 30.3.
Reading edition
The average density of settlement of the United States was, in 1810, 17.7 persons to the square mile; in 1820, 18.9 persons; in 1860, 26.3; in 1870, 30.3.