At midmorning of a broiling summer day the life of Three Counties Hospital ebbed and flowed like tide currents around an offshore island. Outside the hospital the citizens of Burlington, Pennsylvania, perspired under a ninety-degree shade temperature with 78 per cent humidity. Down by the steel mills and the rail yards, where there was little shade and no thermometers, the reading-if anyone had bothered to take it-would have been a good deal higher. Within the hospital it was cooler than outside, but not much. Among patients and staff only the fortunate or influential escaped the worst of the heat in air-conditioned rooms. There was no air conditioning in the admitting department on the main floor, and Madge Reynolds, reaching into her desk for her fifteenth Kleenex that morning, dabbed her face and decided it was time she slipped out to make another application of deodorant. Miss Rey