Science / Technology
see also Communications (Telegraph, Telephone)
see also Lighting (Gas, Electric)
see also Organisations - Scientific Societies
see also Photography and Optical
— futurology
— Greenwich Observatory
— hair-brushing machinery
— Knight's American Mechanical Dictionary
— Mesmerism
— phonograph
— phrenology
— reprography
— sewing-machines
— sound recording (humour)
— a thermometer in Kensington Gdns
— vivisection
— The Wandsworth Telescope
— X-rays
