Excerpt from The Journal of the Chemical, Metallurgical and Mining Society of South Africa, Vol. 15: July, 1914 June, 1915 The addition of a solution of a ferric salt to a solution of a ferrocyanide results in the formation of a bulky deep blue precipitate, which varies in composition according to the conditions of the precipitation, and to the particular ferrocyanide used The nature and constitution of these precipitates is still the subject of much discussion. 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.