Their distribution, for example, was not at all even. The areas of the maps on which the dots were clustered most thickly corresponded in the main to those areas inhabited by families that were well-to-do or at least “comfortable.” The areas of the maps on which the dots were sprinkled most thinly corresponded in part to undeveloped outlying areas of the city that did not really need playgrounds, but they corresponded also to some of the city’s most congested areas, to the tenement neighborhoods and slums inhabited by families that were poor—to areas that needed playgrounds desperately. Most
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