Excerpt from Installation and Test of Ados Co2 Recorder: A Thesis Presented by John Lee Ehretsman to the President and Faculty of Armour Institute of Technology for the Degree of Bachelor of Science in Mechanical Engineering, Having Completed the Prescribed Course of Study in Mechanical Engineering Air contains 21% of oxygen by volume, the remainder being practically all nitrogen. If this oxygen combine with carbon in the furnace, then 21% by volume of carbon dioxide would be the maximum obtainable. 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.