Excerpt from The Chemical News, Vol. 61: January 3, 1890 For electrolysis, in which iron behaves like nickel and cobalt, the solution mixed with ammonium carbonate is alone suitable. If the ammoniacal solution of the ferric double salt or that of the ferrous salt recently prepared is submitted to electrolysis there is deposited at the anode at first a reddish brown salt, which is strongly adhesive and which contains ferric oxide and pyrophosphoric acid. Metallic iron is deposited at the same time at the cathode. As long as the coating on the capsule is thin the colour of the reduced iron is a slate-blue; afterwards it a pears iron-grey. 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.