Rural school sanitation : including physical and mental status of school children in Porter County, Indiana / by Taliaferro Clark, Surgeon, United States Public Health Service, George L. Collins, Surgeon, United States Public Health Service, and W.L. Treadway, Assistant Surgeon, United States Public Health Service ; prepared by direction of the Surgeon General.

Clark, Taliaferro, 1867-1948

Date:: 1916

Credit: Rural school sanitation : including physical and mental status of school children in Porter County, Indiana / by Taliaferro Clark, Surgeon, United States Public Health Service, George L. Collins, Surgeon, United States Public Health Service, and W.L. Treadway, Assistant Surgeon, United States Public Health Service ; prepared by direction of the Surgeon General. Source: Wellcome Collection.

Cover
Title Page
Table of Contents
Cover

40/132 page 38

this room by artificial means, an exigency which could be obviated in a measure by grouping the desks nearer the windows. The utilization of this standard, however, is conditioned by cer- tain more or less rigid restrictions. In the first place, it must not be forgotten that the illumination of a given desk in a classroom is inversely as the square of the distance from the source, which in this instance is the classroom window. The adoption of this stand- ard of illumination, therefore, fixes the width of classrooms within very definite limits, so that no desk should be removed further than 20 feet from the source of light under average conditions of one- sided aed hokee Bi 1 ao Pale i ee =] CI I als aa pas Ed) fa Fa <o WEATHER CONDITIONS—FAIR, 2:20 PM. May 3,915. Winbow ILLUMINATION 166.6: FooT: CANDLES. U.S. PuBtic HEALTH SERVICE CHART 4. The amount of light entering classroom windows of a given area is modified by the angle of incidence, by the proximity and color of neighboring Pane by the presence or absence of shade trees, by projecting eaves, by variation in the number of sunny days, by the distance of the upper edge of the window from the ceiling, and even by the thickness and quality of the glass used in windows. Nearness of neighboring buildings hardly enters the problem of rural school construction. Nearness of shade trees, however, may seriously interfere with the admission of daylight to classrooms. Visible sky vault.—In order that the pupil may receive the light necessary for the illumination of his desk, a measure has been sug- gested which demands that the child eal be able to see a part of the sky vault from his seat. It has been suggested that this sky

Licence and re-use

Contents