"Pure food" became the rallying cry among a divergent group of campaigners who lobbied Congress for a law regulating foods and drugs. James Harvey Young reveals the complex and pluralistic nature not only of that crusade but also of the broader Progressive movement of which it was a significant strand. In the vivid style familiar to readers of his earlier works, The Toadstool Millionaires and The Medical Messiahs, Young sets the pure food movement in the context of changing technology and medical theory and describes pioneering laws to control imported drugs and domestic oleomargarine. He...