RACES: On the Move

The South's race problem is moving north and west—as some Southerners have long predicted that it would.

In the last 16 years, Detroit's Negro population has increased by 75% (to 210,000). Los Angeles' 133,000 Negro population has more than doubled since 1940. Between 1930 and 1945, New York's Negro population has increased 67% (to 547,000); Chicago's by 50% (to 350,000); San Francisco's by 741% (to 32,000). In Portland, Ore., Negroes increased from 2,100 in 1940 to 11,000 in 1946.

One aspect of the North's new responsibility: in Manhattan's overcrowded Harlem slums, venereal disease is up 188% (to 38 cases per 1,000)...