![\"Instructing](\"http:\/\/libraryblogs.is.ed.ac.uk\/towardsdolly\/files\/2013\/01\/dscn0716.jpg\")
<\/a>Instructing students, Wagga Farm, New South Wales, Australia, early 20th century<\/p><\/div>\n
First, though, I\u2019d like to tell you a bit about what a glass plate slide is and a bit of its history in regards to photography. The first collodion wet plate negative was made by the British photographer, Frederick Scott Archer in 1851 and Richard Leach Maddox, a British physician and photographer, made the first dry glass plate negative twenty years later in 1871. What is meant by these types of negatives? \u2018Glass plate negatives comprise two formats collodion wet plate negatives and gelatin dry plate negatives. Both types have a light sensitive emulsion with a binder thinly layered on one side of a glass plate.\u2019 The article, Handle with Care: Glass Plate Negative and Lantern Slide Collections at the Syracuse University Archives<\/a>, is particularly useful in describing the history and technique.<\/p>\n Since I\u2019m just beginning to catalogue the glass slides collection and have already found many interesting and diverse images \u2013 from a photograph of men loading horses in the Chicago Stockyards:<\/p>\n to an illustration of man-eating lions from Tsavo (Kenya) :<\/p>\n \u2013 I\u2019m looking forward to discovering more fascinating things as time goes on. I\u2019ll keep you posted!<\/p>\n","protected":false},"excerpt":{"rendered":" While I\u2019ve been busy cataloguing the scientific off-prints from the various institutes that have comprised the animal genetics programme in Edinburgh; with the start of the New Year I am moving on to catalogue the glass plate negative slide collection … Continue reading <\/a><\/p>\n<\/a><\/p>\n