In the quarter of a century between 1830 and 1855, the railway locomotive developed from the small sisters of Rocketto the broad gauge monsters of Daniel Gooch, with a boiler pressure nearly three times that of Rocketand weighing in at nearly 40 tons (eight times the weight of Rocket). There was a marked increase in loads, speeds and reliability as the railways spread across the country from their cradle in the North West, with several thousands of miles of track being laid. In this book, Anthony Dawson charts the rise and development of the steam locomotive in this crucial period in the development of the railways. Drawing on first-hand accounts, and using case studies based on specific classes of locomotive and their working replicas, he charts the development of the locomotive from Rocket, through the Planet and Patentee classes of Robert Stephenson, Edward Bury's 'coppernobs' and finally Firefly and Iron Duke on Brunel's broad gauge. This is a fascinating and well-illustrated insight into a period of engineering ingenuity and genius.