Peter Barlow's A Treatise on the Strength of Materials is a must-read for engineering students and professionals. It is an authoritative text on mechanics that can be used as a reference book for a wide range of applications. This book has been the primary resource for any serious student of the strength of materials for over two centuries. This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work is in the "public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.