The departure of Marmier and Gyldenstolpe from Stockholm to join La Recherche at Trondheim marked the beginning of the 1838 expedition of the Commission du Nord, and Marmier was appointed to write the official report. This part of his journey is described in some detail in the Relation du voyage of the official publication, which is full of historical data about the sites described, details of local customs, folklore, climate, population, political organisation, public institutions, statistics, different modes of transport, local curiosities, monuments, and various other information. This chapter notes the apparent ease with which Marmier seems to make the transition from life in presumably fairly luxurious and sophisticated circles at court, or intellectual circles in Uppsala, to contact with some of the least privileged in that society. He seems to have made friends on his travels at all social levels; he recorded those contacts in his official reports.