A collection of lecture notes and other material associated with lantern slides made by the Paget Colour process by Henden Hardwick. The group includes: two small red notebooks containing handwritten lecture notes for 'The Romance of London' and 'A Ramble round Hampstead' by H. Hardwick; lecture notes for 'The Wye Valley' handwritten on individual sheets of lined paper; lecture notes for 'Colour Photography in Simple Language' handwritten on individual sheets paperclipped together; a Christie's auction catalogue ('19th and 20th Century Photographs' held on Thursday 31 October 1985 at 2.00p.m.); a printed sheet of 'Press Opinions' relating to 'Original Lantern Lectures, Illustrated by direct Colour Photographs' delivered by Mr Henden Hardwick; a handwritten numbered list (possibly relating to the lantern slides) on individual sheets of lined paper pinned together; and a folder labelled 'Science Museum' containing various pictures and photographs.