Colonel Stuart Wortley (1832-1890) played a pivotal role in the early history of British photography as an innovator, promoter, and practitioner of the medium. This catalogue places his contributions to photography in the broader context of nineteenth-century landscape photography. It presents the findings and observations of Katherine DiGiulio, a scholar who specializes in the history of British photography of the mid-nineteenth century. Also included is a reprint of an article by Stuart Wortley himself, on the aesthetic and technical aspects of photography.