This book examines the persona of the "man of science" in the Victorian period as it was shaped by Thomas Huxley, the leading British naturalist and notorious popularizer of Darwinian theory. It demonstrates how the scientific practitioner was regarded as a moral and religious figure; simultaneously considered to be the epitome of the secular, professional scientist. Breaking with traditional biographies, this fascinating portrait treats Huxley as the consummate British "man of science" and reflects on the historical significance of scientific authority.