He then went on to start teaching a course in monumental archeology, at Caen, its proceedings later to be published in six volumes under the title Histoire de l'architecture religieuse, civile et militaire.

In addition to putting up archaeological conventions, he also took to setting up scientific conferences, which enjoyed great success, because they met the intellectual aspirations of his time.

It gave the intellectual movement that spread throughout France a boost reflected by the foundation of a variety of scholarly and literary societies, each now endowed with a library, archives, and, even for a few, a museum.

De Caumont penned more than thirty books on archeology, and he very actively contributed to the publication of about two hundred volumes of reports and briefs by the learned societies he founded.

His magnum opus is the monumental Cours d'antiquités monumentales: histoire de l'art dans l'ouest de la France, depuis les temps les plus reculés jusqu'au XVIIe siècle, published from 1830 to 1841, it covers the religious, civil and military architecture of the Gallo-Roman to the medieval era.