[Fencer], 1906, Gelatin silver print, Image: 17. 5 x 26. 5 x 12. 8 cm (6 7/8 x 10 7/16 in. ), Photographs, Georges Demeny (French, 1850?1917), Demeny was the principal assistant to Etienne-Jules Marey (1831-1904), one of the nineteenth century's premier scientific investigators of the phenomenon of movement. In 1882, Demeny was instrumental in setting up Marey's 'station physiologique' in the Bois de Boulogne--the studio where they carried out pioneering motion studies