This classic text provides a comprehensive overview of the roller mill, one of the most important tools in the history of milling. With its detailed explanations of the science and engineering behind the roller mill, and its practical advice for using it to process grains and other materials, this book is an essential resource for anyone interested in the history of milling or the principles of mechanical engineering. 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.