On the occasion of the centenary of the chemist Eugène Chevreul, Paul Nadar devised a plan to record his father’s interview with the scientist through the mediums of both stenography and photography. Over the course of three sittings, both at home and in the studio, he took some one hundred shots – with a shutter speed of 1/133rd of a second – of Chevreul in conversation with Félix Nadar, as well as with his son, his laboratory director, and the Chinese ambassador. The interview, which was originally done for L’Illustration, wound up appearing in the September 5 edition of the Journal illustré. It would be the world’s first photographically illustrated interview published in the press. The captions written by Félix Nadar were, however, somewhat more whimsical than the original conversation.