Book Description
Excerpt from The Health Bulletin, 1921, Vol. 36 In conclusion, the important point to be remembered, in this connection, is that a diminished oxygen supply does not serve as a plausible explanation for the evil effects of ventilation, for the reason that in rooms where ventila tion is known to be poorest the per centage of oxygen is never found to be under 20 per cent, and, other condi tions being favorable, we know that the percentage of oxygen may be very much reduced without injurious effects. 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.
