XJF264495 Sr. Robert Koch (1843-1910) leaving the Royal Hospital, where the English patient is being treated, from \'The Graphic\', 6th December 1890 (engraving) (b/w photo) by English School, (19th century); Private Collection; (add.info.: German physician and pioneer bacteriologist; worked on wounds, septicaemia and splenic fever; discovered tubercle and cholera bacillus; winner of Nobel Prize for physiology or medicine in 1905;); English, out of copyright.