Pupil Gallery

Iris of the eye, SEM

Iris of the eye. Coloured scanning electron micrograph (SEM) of the inner surfaces of the iris and adjoining structures in the human eye. At far right (blue) is the edge of the pupil, the hole that allows light into the eye. Coloured mauve is the iris which controls the size of the pupil and therefore how much light will enter. The band of folds down the centre (red) are the ciliary processes. These secrete fluids that nourish neighbouring parts of the eye. They are also the sites of attachment for the long, thin zonule filaments (yellow and green) which are responsible for suspending the lens (unseen). Magnification: unknown

© STEVE GSCHMEISSNER/SCIENCE PHOTO LIBRARY

Portrait of William Heberden the Younger (oil on canvas)

MOU398973 Portrait of William Heberden the Younger (oil on canvas) by Kauffmann, Angelica (1741-1807); 61.2x51.1 cm; Private Collection; (add.info.: Willian Heberden (1767-1845) became a leading 19th century doctor and royal physican the Queen Charlotte and King George III;); Photo A© Philip Mould Ltd, London; Swiss, out of copyright

© © Philip Mould Ltd, London / Bridgeman Images

Poster for l Electricine, Lucien Lefevre 1850 France, exhibited in the Salon

Poster for l Electricine, Lucien Lefevre 1850 France, exhibited in the Salon des Independents in Paris in 1872 and 1873. A pupil of Jules Cheret. His posters are included in Les Maitres de la€™Affiche, The Masters of the Poster

© Artokoloro Quint Lox Limited

1872, 1873, 1893, Advertise, Advertisement, Advertising, Affiche Artistique, Announcement, Art, Art Nouveau, Banner, Belle Epoque, Business, Campaign, Commercial, Communication, Decoration, Desk, Eclairage De Luxe, Electrical, Electricity, Exhibited, Fashion, Female, Fin De Siecle, France, French, Gilded Age, Golden Age, Illustration, Included, Interior, Joie De Vivre, Joy Of Living, Jugendstil, L électricine, Lamp, Lelectricine, Les Maitres De L Affiche, Les Maîtres De L,affiche, Light, Lucien Lefevre 1850 France, Marketing, Masters, Media, Message, Optimism, Paris, Picture, Poster, Posters, Promotion, Pupil, Salon Des Independents, Secession, Shade, Sign, Victorian