Caffeine crystals, light micrograph
Caffeine crystals. Polarised light micrograph of crystals of caffeine (1, 3, 7-trimethylxanthine). Caffeine stimulates the central nervous system increasing alertness and deferring fatigue. Caffeine is also a diuretic (increases the removal of water from the body) and has laxative properties. It is widely known for its presence in coffee beans and tea leaves.
© DAVID PARKER/SCIENCE PHOTO LIBRARY
Coffee plant, 19th century
Coffee plant, 19th-century artwork. The illustration is captioned in French as 'Cafier d'arabic'. This artwork is from 'Phytographie Medicale' (Paris, 1821-4) by French botanist Joseph R. Roques (1772-1850). The artworks were by French artist and writer Edouard Hocquart (1789-1870). This artwork is part of the Plate Collection at the Botany Library, the Natural History Museum, London, UK.
© NATURAL HISTORY MUSEUM, LONDON/SCIENCE PHOTO LIBRARY
The new coffee tavern at Bradford
Interior and exterior views of the new coffee tavern in Bradford, inaugurated by W. E Forster, M.P in 1879. The Coffee Tavern movement was a Victorian effort to get people out of pubs. Proposed by the Bradford councillor, alderman and magistrate, Frederick Priestman, the tavern was opened at the junction of Westgate, Ivegate and Kirkgate and was an immediate commercial success serving food as well as coffee. Within a few years there were 28 branches in the Bradford district but with over 400 licensed beer sellers in the area, how much of a sobering effect they had on the local population is debatable.
© Mary Evans Picture Library 2015 - https://copyrighthub.org/s0/hub1/creation/maryevans/MaryEvansPictureID/10216461