Fig. 1.

Portraits of Wilhelm His. (A) 1849, portrait, aged 18, on the bowl of a pipe, from a watercolour by Hans Burckhardt; Anatomisches Museum, Basel. Photograph M. K. Richardson. (B) Photograph, 1872; courtesy of Roger and Hugo Kurz. (C) Photograph; courtesy of Fotosammlung 11, Universitätsbibliothek, Leipzig. An identical image in the Alan Mason Chesney Medical Archives is inscribed: ‘G. Brokesch 1882–83 Leipzig’. (D) Painting (oil on canvas), 62 × 49 cm, signed Albert Winther, dated 189?; Kunstbesitz der Universität Leipzig, inventory no. 1951:004, photographed by Karin Kranich; image rights: Kustodie der Universität Leipzig (for more information, see Supplementary Note S1). (E) Undated photograph, courtesy of the History of Medicine Collections, David M. Rubenstein Rare Book and Manuscript Library, Duke University. (F) Photograph, circa 1900 (source as B). B and F are figs 3 and 6 in Kurz (1992) from where the information provided here was taken.