Throughout its early history, photography's authenticity was contested and challenged: how true a representation of reality can a photograph provide? Does the reproduction of a photograph affect its value as authentic or not? From a Photograph examines these questions in the light of the early scientific periodical press, exploring how the perceived veracity of a photograph, its use as scientific evidence and the technologies developed for printing it were intimately connected. Before photomechanical printing processes became widely used in the 1890s, scientific periodicals were unable to...