The discovery of registers recording Durkheim’s loans from Bordeaux University’s Arts and Science Library, and also his acquisition requests, presents scholars in the field with a vast and at the same time challenging mass of new material. Acknowledgements are due to Nicolas Sembel and Matthieu Béra for their combination of initiative and effort, after the initial discovery’s excitement, in looking for similar registers in the university’s Law and Medical Libraries, but also and not least in combing through the surviving records to work them up into readily accessible documents. In undertaking to publish the fruits of their research in this journal, it has been decided to do so in two stages. The first, in the present issue, consists of the documents themselves together with a commentary, in French, by Nicolas Sembel; this will be followed in the next issue by a commentary, in English, by Matthieu Béra.