This report by the minister Gustave Rouland was published on 27 November 1861 in the Journal général de l'Instruction publique. He reported on the excavations and other work being carried out by members of the Commission de Topographie des Gaules to locate the different sites mentioned by Julius Caesar in The Conquest of Gaul.
Archives nationales, F/17/2906
Archives nationales, F/17/2906
Vist the site : Aux sources de l'Archéologie nationale