On Ventilation (Classic Reprint)

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Excerpt from On VentilationWhen our howledge of the function of breathing became de veloped to the extent of showing that an animal requires the oxym of the air for the living processes of its body. And as a result of these processes that it produces carbonic acid. Which is then adds to the air. It was natural to suppose that the unfavourable effect of overcrowded confined spaces was due either to the using up of the available oxygen or to a poisonous action of the carbonic acid Indeed. It is still the notion of many people that one or other of these changes in the air is the cause of the discomfort of living in crowded places. It is true that a great deficiency of oxygen, sud as occurs sometimes in mines because of oxidative processes in the soil. Will very q..ickly cause serious symptoms, often indeed vii produce it suddenly fatal result. Ari a lesser deficiency such a occursinthooeunaccuotomedtotherarefiedairofhighmou tains, or in aeronautics, is undoubtedly responsible for most of the not mad symptoms classified under the term of mountain sickness But that 0, deficiency is not a usual factor in the evil effects of wt ated atmospheres is made plain when we state that even in the ma: overcrowded room a decrease of O, of one per cent. Front!About the PublisherForgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.comThis 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.