Excerpt from Disintegration and Preservation, of Building Stones in Egypt The principal destructive agent which attacks and destroys the stone used in buildings in large towns in England, on the Continent of Europe, and in America, is sulphuric acid, formed by the oxidation, during combustion, of the sulphur compounds which are always present in coal and coal gas. This acid is subsequently dissolved out of the atmosphere and brought into contact with the stone by means of rain. About the Publisher Forgotten Books ...
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Excerpt from Disintegration and Preservation, of Building Stones in Egypt The principal destructive agent which attacks and destroys the stone used in buildings in large towns in England, on the Continent of Europe, and in America, is sulphuric acid, formed by the oxidation, during combustion, of the sulphur compounds which are always present in coal and coal gas. This acid is subsequently dissolved out of the atmosphere and brought into contact with the stone by means of rain. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at ... 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.
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