Poincaré and Dreyfus

A collection of materials relating to the intervention of the topologist Henri Poincaré in the Dreyfus case.
In 1904 Darboux, Appell and Poincaré submitted a report on the probabilistic aspects of the first 1894 Dreyfus trial
for the 1906 appeal (which was not granted, but did result in the freeing and reinstatement of Dreyfus).
Thanks to my colleague Colin Aitken, Professor of Forensic Statistics at the University of Edinburgh,
for drawing my attention to the Poincaré-Dreyfus connection, and for the references.
The English translation of the report is due to him; thanks to Shu Otsuka for typing.