POPULATION CENTERS AND DENSITY OF 
POPULATION 
Frank Carney 
General principles 175 
Factors in the location and growth of population centers 176 
Early settlements 
Early importance of Cincinnati 
Zane’s Trace 
Readjustments due to the canals 
Railways and population centers 
Influence of political convenience 
Arbitrary industrial purposes 
Typical early centers 180 
Cincinnati, the first manufacturing town 
Chillicothe 
Cambridge 
Cleveland 
Northwestern Ohio 
Density of population 183 
What is over-population 
Types of over-population 
Density in particular states 
Pacific coast states in last decade 
Industry and urban density 
The limit of rural density 
Urban density in Ohio 
Ohio’s smaller cities 
Problems of large cities 189 
Markets and urban density 
Water supply and urban density 
Sewage disposal and urban density 
Urban transportation 
GENERAL PRINCIPLES 
It is a common observation that a very large percentage of 
mankind live in the lowlands, especially the lowlands that are 
not far vertically from sea-level. As population has become 
more dense in various parts of the world, man has learned to 
live under all kinds of topographic conditions, but primitive 
man was not a mountaineer. When people move into a new 
175 
