This groundbreaking study of the steam-generating power of marine and locomotive boilers is a must-read for anyone interested in the history of technology and engineering. Williams' detailed analysis of the efficiency and effectiveness of these boilers provides an indispensable resource for engineers and historians alike. Through close examination of the various components of these machines, Williams offers an unprecedented look at the way steam technology transformed transportation in the 19th century. 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.