Amitiés et communautés d'opinion. Le réseau de Jules-Paul Tardivel au service de La Vérité.

This article takes a first look at Jules-Paul Tardivel's ultramontane network at two points in its history: the years 1884-1886 and 1889-1891. This exploration was conducted from an analysis of letters exchanged between Tardivel and his colleagues and his personal diary. It shows an evolution in the constitution of the ultramontane network of the last quarter of the 19th century. The analysis also makes it possible to measure the network's influence and support in the construction of La Vérité, the Tardivel-led ultramontane combat journal. [ABSTRACT FROM AUTHOR]