Excerpt from The Lighting of School-Rooms: A Manual for School Boards, Architects, Superintendents and Teachers It has been common report that the principles on which the lighting of a school depended were t kwn and that the whole subject was still in a chaotic state. My studies had, on the contrary, led me to the conclusion that all the important principles were t only definitely kwn but were capable of actual demonstration. Accordingly I made it my business to test this conclusion carefully, to ascertain the facts and the reasons underlying them. The result demonstrated quite thoroughly that the main problems of school lighting are solved already, and solved practically. It must be admitted that one would never guess it from an inspection of an average half dozen or half hundred school-houses, but the fact remains that the mechanics of light is adequately kwn, that, given the data, the lighting value of a window of a certain size at a certain location can be readily ascertained and the effect of obstructions measured, and that the typical shapes possible for a building have all been tried. The problem for the future is simply to get all concerned to kw and respect the requirements. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art techlogy to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.