FLO4992657: Sand sedge or german sarsaparilla, Carex arenaria. Chromolithograph after a botanical illustration from Hermann Adolph Koehler's Medicinal Plants, edited by Gustav Pabst, Koehler, Germany, 1887. / Bridgeman Images

FLO4992692: Wheat or bread wheat, TritiCum vulgare. Chromolithograph after a botanical illustration by Walther Muller from Hermann Adolph Koehler's Medicinal Plants, edited by Gustav Pabst, Koehler, Germany, 1887. / Bridgeman Images

FLO4992904: Zedoary or white turmeric, Turmeric zedoaria. Chromolithograph after a botanical illustration from Hermann Adolph Koehler's Medicinal Plants, edited by Gustav Pabst, Koehler, Germany, 1887. / Bridgeman Images

FLO4992400: Indian tobacco or puke weed, Lobelia inflata. Chromolithograph after a botanical illustration from Hermann Adolph Koehler's Medicinal Plants, edited by Gustav Pabst, Koehler, Germany, 1887. / Bridgeman Images

FLO4990285: Resin spurge, Euphorbia resinifera. Chromolithograph after a botanical illustration from Hermann Adolph Koehler's Medicinal Plants, edited by Gustav Pabst, Koehler, Germany, 1887. / Bridgeman Images

FLO4990288: Savin juniper or savin, Juniperus sabina. Chromolithograph after a botanical illustration from Hermann Adolph Koehler's Medicinal Plants, edited by Gustav Pabst, Koehler, Germany, 1887. / Bridgeman Images

FLO4990325: Croton purging, Croton tiglium. Chromolithograph after a botanical illustration from Hermann Adolph Koehler's Medicinal Plants, edited by Gustav Pabst, Koehler, Germany, 1887. / Bridgeman Images

FLO4990335: Castor oil plant, Ricinus communis. Chromolithograph after a botanical illustration from Hermann Adolph Koehler's Medicinal Plants, edited by Gustav Pabst, Koehler, Germany, 1887. / Bridgeman Images

FLO4990731: Strophanthus hispidus. Chromolithograph by E. Gunther after a botanical illustration from Hermann Adolph Koehler's Medicinal Plants, edited by Gustav Pabst, Koehler, Germany, 1887. / Bridgeman Images

FLO4990767: Purple foxglove, Digitalis purpurea. Chromolithograph after a botanical illustration by Walther Muller from Hermann Adolph Koehler's Medicinal Plants, edited by Gustav Pabst, Koehler, Germany, 1887. / Bridgeman Images

FLO4983129: Flowering dogwood or boxwood, Cornus florida. Handcoloured lithograph by Hanhart after a botanical illustration by David Blair from Robert Bentley and Henry Trimen's Medicinal Plants, London, 1880. / Bridgeman Images

FLO4985481: Longleaf pine, Pinus palustris (Broom pine, pitch pine or yellow pine, Pinus australis). Handcoloured lithograph by Hanhart after a botanical illustration by David Blair from Robert Bentley and Henry Trimen's Medicinal Plants, London, 1880. / Bridgeman Images

MEP2386698: The heart surgeon Christiaan Barnard / Bridgeman Images

LLM974013: A doctor telling a man what he should eat (chromolitho), European School, (19th century) / Private Collection / Bridgeman Images

FAF1254187: Nurse attending to an elderly woman in a hosptial during World War II. (b/w photo), Italian Photographer, (20th century) / Bridgeman Images

FAF1254188: Red Cross volunteers helping an elderly woman climb into a van. (b/w photo), Italian Photographer, (20th century) / Bridgeman Images

LLM3642777: Pa has his bumps felt (colour litho), Browne, Tom (1872-1910) / Private Collection / Bridgeman Images

WRH884114: Plains Indian, Medicine Men, 2004 (w/c on paper), Wood, Rob (b.1946) / Private Collection / Bridgeman Images

MLO1984221: Luc Montagnier / Bridgeman Images

KDC400218: Lloyd George tries to win over the medical profession to approval of his National Insurance Act, 1912 (litho), Raven-Hill, Leonard (1867-1942) / Private Collection / Bridgeman Images

LSS355982: Stain 1, 2007 (oil on canvas), Stokes, Lisa / Private Collection / Bridgeman Images

TRK3482534: Human skull marked with post-trephination holem, prehistory / Archaeological Museum, Gdansk, Poland / Bridgeman Images

MEP2386663: A close up of Christiaan Barnard / Bridgeman Images

PVD1695044: French Army Ambulance: wounded soliders on 4 stretchers, ww1 / Bridgeman Images

FLO4994880: Aleppo oak, Quercus infectoria (Quercus lusitanica var. infectoria). Chromolithograph after a botanical illustration from Hermann Adolph Koehler's Medicinal Plants, edited by Gustav Pabst, Koehler, Germany, 1887. / Bridgeman Images

FLO4995345: Paraguay jaborandi, Pilocarpus pennatifolius. Chromolithograph after a botanical illustration by Walther Muller from Hermann Adolph Koehler's Medicinal Plants, edited by Gustav Pabst, Koehler, Germany, 1887. / Bridgeman Images

FLO4995090: White sassafras, Sassafras albidum (Sassafras afficinale). Chromolithograph after a botanical illustration from Hermann Adolph Koehler's Medicinal Plants, edited by Gustav Pabst, Koehler, Germany, 1887. / Bridgeman Images

FLO4989411: Iceland moss, Cetraria islandica. Chromolithograph after a botanical illustration from Hermann Adolph Koehler's Medicinal Plants, edited by Gustav Pabst, Koehler, Germany, 1887. / Bridgeman Images

FLO4990322: White hellebore, Veratrum album. Chromolithograph after a botanical illustration from Hermann Adolph Koehler's Medicinal Plants, edited by Gustav Pabst, Koehler, Germany, 1887. / Bridgeman Images

FLO4985381: Cassava or manioc, Manihot esculenta (Manihot utilissima). Handcoloured lithograph by Hanhart after a botanical illustration by David Blair from Robert Bentley and Henry Trimen's Medicinal Plants, London, 1880. / Bridgeman Images

FLO4985461: White oak or valley oak, Quercus alba. Handcoloured lithograph by Hanhart after a botanical illustration by David Blair from Robert Bentley and Henry Trimen's Medicinal Plants, London, 1880. / Bridgeman Images

FLO4983506: Indian sarsaparilla, nunnari or nannari, Hemidesmus indicus. Handcoloured lithograph by Hanhart after a botanical illustration by David Blair from Robert Bentley and Henry Trimen's Medicinal Plants, London, 1880. / Bridgeman Images

FLO4983532: Wild yellow jessamine or false jasmine, Gelsemium sempervirens (Gelsemium nitidum). Handcoloured lithograph by Hanhart after a botanical illustration by David Blair from Robert Bentley and Henry Trimen's Medicinal Plants, London, 1880. / Bridgeman Images

FLO4983305: Horseweed, butterweed or Canada fleabane, Erigeron canadensis (Erigeron canadense). Handcoloured lithograph by Hanhart after a botanical illustration by David Blair from Robert Bentley and Henry Trimen's Medicinal Plants, London, 1880. / Bridgeman Images

FLO4992484: Sweet flag or cinnamon sedge, Acorus calamus. Chromolithograph after a botanical illustration from Hermann Adolph Koehler's Medicinal Plants, edited by Gustav Pabst, Koehler, Germany, 1887. / Bridgeman Images

FLO4992640: Coconut tree, Cocos nucifera. Chromolithograph after a botanical illustration from Hermann Adolph Koehler's Medicinal Plants, edited by Gustav Pabst, Koehler, Germany, 1887. / Bridgeman Images