Excerpt from Transactions for 1900 and General Index, 1857 to 1900The November meeting brought forward Mr. Cowper-cole's paper on The electrolytic treatment of complex sulphide ores. A number of processes were described for the distilling of zinc from its ores, and it was pointed out that about 16 per cent. Of the metal was not extracted from the ore, and that 10 tons of coal were required to produce 1 ton Of zinc by the present process. The author then detailed a number of experiments made by himself on sulphide ores, and showed a number of specimens Of the crude ores and their products.About the PublisherForgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.comThis 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.