Figure 6-4. Other Groupings of States from the 1850 and 1860 Censuses
A. Groupings for Land Area, Population, and Density Table (1850/1860)
B. Five Divisions Used in Many Summary Tables (1860)
C. Areas for Summarizing Railroad Mileage and Costs (1860)
Source: Preliminary Report on the Eighth Census, 1862.
6-10Statistical Groupings
