Excerpt from The Manufacture of Carbide of Calcium In both cases the carbons were of poor quality, their chief failing being excessive softness. Both sets show the characteristics of soft carbons, viz., the wearing away to a point at the lower ends and bad corrosion between the pairs of electrodes, the corrosion being most marked between the pair of carbons farthest removed from the busbars Which conduct the current from and to the transformers. 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.