This book tells the story and history of several steam developers of the early 20th Century. Unlike the previous book—Coats—none of these were promoters, so we are spared the advertising and the hype. What they had most in common was the engineering skill to be able to float back and forth from steam to internal combustion to general automobile engineering as circumstances developed. That fact shows both their skills and their continuing attraction to steam power—the dream lived on. No hardware survives. This is a valuable book for anyone interested in modern steam power. And it is a very good history of a little known story.