Salt Prints Survey Data

Salt prints represent the first negative-to-positive photographic technique. Introduced by Englishman William Henry Fox Talbot in 1839, it is the process from which most nineteenth- and twentieth-century photographic formats were derived. Collections of salt prints found in libraries, archives, and museums at Harvard University include some of the earliest photographic images created, and they represent a seminal chapter in the history of photography. Together, these holdings reveal technological developments in the medium and pioneering uses of photography across the sciences and humanities. Please visit https://projects.iq.harvard.edu/saltprintsatharvard to learn more about the full project and access digital images. These data include records from the survey of Harvard Photograph collections to identify salt prints and contain cataloging metadata, subjects, processing techniques, and photographer information.