Excerpt from The London Journal of Arts and Sciences, and Manufactures, and Repertory of Patent Inventions, Vol. 41 VIII. Johnson's Impts. In steam-engines and Boilers; Newton's Impts. In Warming and Ventilating; and Lowe and Evans' Gas Apparatus. IX. Squire's Impts. In piano-fortes; Newton's Impts. In Dyeing; and Illustrations of Mechanical Engineers' Transactions. 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.