I was looking in the book Silver gelatin and ran across a very simple recipie for an unwashed emulsion. It contains of A: Gelatine destilled water salt B: destilled water silver nitrate this recipie looks so familiar to salt print so my question would be: Is this for an emulsion used in a darkroom - and if so with a normal developer (salt prints doesn't require developer)? Or is it for contacting technique using UV light? The book doesn't mention anything except the recipie.... Anyone knows?