This book tells the story of the amazing transformation of farming brought about by the gigantic steam tractors that hauled agriculture into the modern era, the first Iron Horses. Here is the first-ever thorough history of the steamers packed with more than 400 super-rare photographs and brochures that have taken years to collect. Before the advent of lightweight gasoline engines, steam tractors were met with awe, delight, fear, and enthusiasm at their promise of quicker progress. Even today, county fairs, and tractor shows, these remarkable machines command great respect, and always draw fascinated crowds.This book gives readers and tractor fans a chance to linger over every detail of these marvelous - and now, all too rare-machines. Richly illustrated and meticulously detailed, each entry brings to the fore a steam tractor that in its day transformed the business of farming acre by acre and day by day. Full of rare archive photographs, technical details, specs, information on day-to-day working, cleaning, repair, usage, fuelling, water supplies, this is bound to appeal to the enthusiast and casual reader alike.