This classic engineering text provides a comprehensive overview of compressed air, including its physical properties, thermodynamics, and practical applications. Hiscox covers a wide range of topics, including pneumatic machinery, air compressors, and the use of compressed air as a motive power. The book also includes a variety of data tables and formulas to aid in calculations. This remains a valuable resource for students and professionals in many fields of 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.