Collection comprised of copies of the British Journal of Photography and The Photographic Journal; a copy of Michael Hallett's PhD on John Benjamin Dancer; Harry Milligan's research into John Benjamin Dancer, W H Fox-Talbot, James Mudd, George Grundy; J T Chapman marketing literature, including instruction booklets for photographic processes, lists of lantern slides for hire, catalogues for Chapman's 'Manchester' cameras, price lists, manuals for Chapman's stereoscopic camera and 'British' camera; catalogues from Christie's of London relating to the sale of cameras and photographic equipment and 19th & 20th century photographs; catalogues from Capes Dunn & Co of Manchester; catalogues from Harriet Winter of London relating to Scientific Instruments; catalogues from Sotheby's of Belgravia relating to photographs and scientific instruments; Royal Photographic Society correspondence; articles relating to John Dalton, J P Joule and Linotype & Machinery; research into the history of photography in Manchester; research into the Liverpool and Manchester Railway; copies of Harry Milligan's articles; various editions of Jabez Hughes' "The Principles & Practice of Photography familiarly explained"; guides to photographic processes; publications relating to John Benjamin Dancer; a bill from John Benjamin Dancer.