E.— GEOGRAPHY 



123 



States is the one great populous area in which freedom of movement has 

 been at its maximum since the middle of last century ; and the effects of 

 this tendency towards further concentration are most clearly seen there 

 (see Fig. 2). In a small area stretched along the coast and the ' fall line ' 

 from Boston to Washington, including both of these metropolitan dis- 

 tricts, there were in 1930 about twenty-seven millions of people. Here then 



20 110 100 90 80 70 60 



Fig. 2. — The Populous Region of ' Eastern North America.' 

 Areas of maximum concentration are shown by the darker shading. 



there are more than a fifth of the population on about a hundredth part 

 of the area of the country. There are other lesser areas of concentration, 

 notably along the south shore of Lake Erie and round the south end of 

 Lake Michigan ; and Canada has one, stretching along the north shores 

 of Lakes Erie and Ontario, with a greater relative concentration, for here 

 thirty per cent, of the Dominion's people dwells on considerably less than 

 one per cent, of its territory. But the three concentrations round the Lakes 

 are together less than half as populous as the one on the Atlantic 

 coast. 



