Excerpt from Harper's New Monthly Magazine, Vol. 26: December, 1862, to May, 1863 Wetting Coke The Condenser The Purifier The Valve Room The Governor The Register The Station Meter The Wet Meter; The Dry A Shilling Stamp Reverse of Stamp The Snake Device San Marco, Florence The Dying Message. 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.