The Annual Report of the Trustees of the Massachusetts Hospital School at Canton, 1913 (Classic Reprint) PDF Download

Author: Massachusetts Hospital School
Publisher: Forgotten Books
ISBN: 9780656371464
Category : Business & Economics
Languages : en
Pages : 444

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Book Description
Excerpt from The Annual Report of the Trustees of the Massachusetts Hospital School at Canton, 1913 Except as a matter of curiosity it was not necessary to prove, as we did by actual test, that our monitor-roof wards could be cleared Of a smudge in about thirty-five seconds, while it re quired more than thirty minutes to clear our indirectly venti lated schoolrooms. The air in the schoolroom, after it had been occupied for a few minutes by a small class of 12 or 15 pupils, as compared to the air in a ward Of 40 children was enough to condemn the indirect system without question. A great change has taken place within a few years in the ideas entertained in the scientific world in respect to ventilation, a change which has led and is still leading to the most important practical results. The generally understood fact that ventila tion means the circulation Of air has led to the introduction Of an endless number and variety of methods of heating and ven tilating which so direct the air currents that the foul air close to the ceiling and in corners is not removed, and the occupants of most well-ventilated rooms unconsciously breathe a mix ture Of both foul and pure air. Our dormitories, with ceilings sloping to a long line Of open windows on each side Of the roof, have been found by actual experience to afford most perfect ventilation. The difficulty, however, in finding means to pre vent leakage around the windows on the windward side during severe storms led to the experiments which resulted in the con struction Of one ward at the infirmary with a flat roof extending the full width Of the ward. In this way the ideal method Of ventilation was not affected, and the flat roof projection not only prevented the windows from leaking when they were closed, but it was also found that they could be kept Open on the windward as well as on the opposite side during all ordinary storms. Having demonstrated that the flat roof not only did not impair the efficiency Of the ventilation system which we have come to regard as indispensable, but that it was actually improved thereby, a second story for the new cottage was sug gested, and as it is already being copied elsewhere it may not be improper to predict that it will meet rapidly increasing favor. 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 technology 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.