As good a collection of short stories for older boys as I have found for some time. And every story helps build a vital picture of the steel industry, from plant to finished structure. There are two or three introductory sketches to different sections, which help clarify the factual background of the work involved in the stories immediately following. But for the most part, they can be read as straight adventure, with an underlying current of social and industrial significance. The type of story that fathers and sons can share.