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A fascinating collection of great amateur scientists and their discoveries Though they seldom receive the attention accorded their professional counterparts, amateur scientists have made some of the most exciting breakthroughs in the history of science. This collection introduces readers to some of these remarkable people, from eighteenth-century clergyman Joseph Priestley, whose 'dabblings' in chemistry led to his discovery of oxygen, to modern fossil hunter (and college dropout) Susan Hendrickson, who discovered the world's largest T. Rex skeleton.