NHM1456572: Albert von Kolliker, 1892 (b/w photo), English Photographer, (19th century) / Bridgeman Images

NHM1456581: Sir William Turner (b/w photo), English School, (19th century) / Bridgeman Images

NHM1456584: George Busk, 1882 (b/w photo), English Photographer, (19th century) / Bridgeman Images

NHM1456590: Rudolph Bergh, 1894 (litho), English School, (19th century) / Bridgeman Images

NHM1456591: Sidney F. Harmer (b/w photo), English Photographer, (19th century) / Bridgeman Images

NHM1456621: Chlorite variant clinochlore / Bridgeman Images

NHM1457525: Thomas Baines (1822-1875) / Bridgeman Images

NHM1457528: Valenciennea strigata / Bridgeman Images

NHM1457532: Arthur James Balfour (1848-1930) / Bridgeman Images

NHM1457539: Sir Joseph Banks (1743-1820) / Bridgeman Images

NHM1457545: Gazza minuta / Bridgeman Images

NHM1457547: David A. Bannerman (1886-1979) / Bridgeman Images

NHM1457548: David A. Bannerman (1886-1979) / Bridgeman Images

NHM1457558: Charles Spence Bate (1819-1889) / Bridgeman Images

NHM1457560: William Bateson (1861-1926) / Bridgeman Images

NHM1457561: Johann Caspar Bauhin (1606-1685?) / Bridgeman Images

NHM1457566: Robert Bell / Bridgeman Images

NHM1457577: Jacques Marie Frangile Bigot (1818-1893) / Bridgeman Images

NHM1457580: E. Billings / Bridgeman Images

NHM1457584: Arthur Blok (1882-1974) / Bridgeman Images

NHM1457598: Johann Friedrich Borcherding (1849-?) / Bridgeman Images

NHM1457601: Elliott G. Boulenger / Bridgeman Images

NHM1457603: George Albert Boulenger (1858-1937) / Bridgeman Images

NHM1457604: George Albert Boulenger (1858-1937) / Bridgeman Images

NHM1457605: George Albert Boulenger (1858-1937) / Bridgeman Images

NHM1457606: George Albert Boulenger (1858-1937) / Bridgeman Images

NHM1457615: British Association / Bridgeman Images

NHM1457618: Leo Daniel Brongersma / Bridgeman Images

NHM1457624: J. Bruce / Bridgeman Images

NHM1457628: John Young Buchanan (1844-1925) / Bridgeman Images

NHM1457637: William Bullock (c.1773-1849) / Bridgeman Images

NHM1457642: Petrus Camper (1722-1789) / Bridgeman Images

NHM1457646: Philip Pearsall Carpenter (1819-1877) / Bridgeman Images

NHM1457647: William Carruthers (1830-1922) / Bridgeman Images

NHM1457674: Portrait of George III, engraved by John Keyse Sherwin, 1774 (engraving), Cox, James (c.1723-1800) / Bridgeman Images

NHM1457681: Nicholas Culpeper (1616-1654) / Bridgeman Images