'On the 26th of May 1911, the philosopher Henri Bergson [note: 'Hyperlinks to a digital writing and database tool ('CSlide': https://cslide.medsci.ox.ac.uk/) have been added throughout this paper. This approach to the organization and presentation of historical material is intended as a contribution to ongoing experimental investigation into the significance of digital technologies for scholarship. For examples relevant to the history of science, technology and medicine see Nawrotski and Dougherty 2013, and 'The Virtual Laboratory: Essays and Resources on the Experimentalization of Life' (Max Planck Institut für Wissengeschaftsgeschichte, c. 2001-), available at http://vlp.mpiwg-berlin.mpg.de/index_html (accessed 28/10/2016). For recent discussion of experimentation as an investigative approach in the humanities see e.g. Fitzgerald and Callard 2015. The relation between the present organizational and presentational mode and the topic at hand emerges throughout the discussion. Enquiries regarding editorial access to CSlide are welcome at quick.tr@gmail.com.']  gave a lecture to a packed hall at the University of Oxford.'