and Ohio with 56 per cent.
CENTER OF POPULATION AT EACH CENSUS 1790 TO 1910.
MEDIAN POINT 1880 TO 1910.
[Transcriber's Note: Location is within a few miles of latitude 39
degrees. The longitude is approximately: 1790, 76.2; 1800, 77.0; 1810,
77.6; 1820, 78.6; 1830, 79.3; 1840, 80.4; 1850, 81.3; 1860, 82.8; 1870
83.7; 1880, 84.7; 1890, 85.5; 1900, 85.8; 1910, 86.5 ]
The rapid growth of our industrial and manufacturing interests during
the past quarter of a century is shown by the fact that 22 per cent of