OPEN AIR CLASSES

On Pre-θ-Open Sets and Two Classes of Functions

Semi-θ-Open Sets and New Classes of Maps

An Open-Air School

At first children sent here for treatment were mainly from the poorest homes. This is no longer so. The boys and girls, selected as the result of medical inspection from all the schools in Bradford?including secondary schools?are representative of every artisan class. No child is admitted here with any sort of infectious disease. Most suffer from ansemia and the ills that follow in its train. E...

Open-Air Schools

Open-Air Schools. By Leonard P. Ayres, Ph.D. New York: Doubleday, Page and Company, 1910. As a matter of fact we do not need Dr. Ayres' convincing representation of the splendid work done by open-air schools or the delightful photographs scattered through the volume to arouse our enthusiasm. The very name is sufficient. Open-air Schools! Let him who has never held his aching head in a stuffy sc...

on pre-θ-open sets and two classes of functions