In Our Synthetic Environment (p. 361, 1962), Lewis Herber levelled his guns at an array of ecological ills confronting mankind. Here he concentrates his fire on man in the maximum concentration of the city. He scans the skies--dirty-- for their poisonous effect: in London, 1952, in Donora, Pennsylvania, in Yokohama. He looks at water--""cool, refreshing--filthy""--our--waterways by pollution, bound to increase alarmingly in effect unless further treatment plants are constructed. He discusses the emotional stress of the city environment, comparing studies of the Midtown Manhattanites and the Hutterites. He points to the statistics on heart disease and cancer. Altogether, he draws a disturbing portrait of man in an urban prison. Rather than abandon man to the megalopolis, he would seek clean Sources of energy in an industrially decentralized framework. A resounding alarm, based on much already aired information.