Excerpt from Commercial Engineering for Central Stations: A Compilation of Papers Dealing With Subjects, of Particular Interest to Those Engaged, in Central Station Commercial Engineering Work The several chapters of this book deal With a number of subjects more or less diverse in character. The compilation of these different subjects in one book can, perhaps, be justified upon the ground that they all fall Within the scope of central station commercial engineering. A few of the chapters - in slightly different form - have appeared in certain of the tech nical periodicals during the past year, notably in Power and in the Electrical World; the subject-matter contained in the re maining chapters makes its initial appearance in this book. The various data embodied in this compilation of papers have been accumulated by the authors While conducting investiga tions along commercial engineering lines for one of the largest central stations. 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.