Excerpt from The Mechanical Principles of Engineering and Architecture The high place that Professor Moseley occupies in the scientific world, as an original investigator, and the clearness and elegance of the methods he has employed in this work have made it a standard text book on the subjects it treats of. In undertaking its revision for the press, at the request of the publishers of this edition, it has been deemed advisable, in view of the class of students into whose hands it may fall, to make some slight addition to the original. This has been done in the way of Notes thrown into an Appendix, the matter of which has been gathered from various authorities; but chiefly from notes taken by the editor, whilst a pupil at the French military school at Metz, of lectures delivered by General Poncelet, at that time, 1829, professor in that school. It is a source of great pleasure to the editor to have this opportunity of publicly acknowledging his obligations to the teachings of this eminent savan, who is distinguished not more for his high scientific attainment, and the advancement he has given to mechanical science, than for having brought these to minister to the wants of the industrial classes, the intelligent success of whose operations depends so much upon mechanical science, by presenting it in a form to render it attainable by the most ordinary capacities. 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.