1.1 Walrus displayed in Strasbourg, from Conrad Gessner’s Historia animalium (vol. 4, 2nd edn, 1604). (Photo: Biodiversity Heritage Library).
2.1 ‘A Catechisation’ by Adolph Tidemand, from Niels Chr. Tønsberg’s Norske Folkelivsbilleder (Christiania, 1854). (Photo: National Museum, Norway).
3.1 Frontispiece of Das geängstigte Köge, 1696. (Photo: National Library of Norway).
3.2 Map of Thisted, 1677. (Photo: Royal Library, Copenhagen).
7.1 Marmontel’s Contes moraux (Copenhagen, 1768). (Photo: Hans Henrik Olsen, University Library, University of Oslo).
8.1 Drejer’s Club in Copenhagen. Drawing by F.L. Bernth, 1817. (Photo: Royal Library, Copenhagen).
9.1 Student notes from Professor Niels Treschow’s lectures on moral philosophy. (Photo: National Library of Norway).
9.2 Student notes from Professor Niels Treschow’s lectures on moral philosophy. (Photo: National Library of Norway).
9.3 Student notes from Professor Georg Sverdrup’s lectures on psychology: Front page. (Photo: National Library of Norway).
9.4 Student notes from Professor Georg Sverdrup’s lectures on psychology: Register of items. (Photo: National Library of Norway).
10.1 Christian Frederik as ‘King of Norway’, Jens Wolff’s travel book, [A Northern Tour]: Sketches on a Tour to Copenhagen, 1814. (Photo: National Library of Norway).
10.2 ‘Grunnlovsplakat’ (constitution poster), 1836, by J. C. Walter. (Photo: National Library of Norway).
11.1 Børnevennen, January 1868. (Photo: the author).
12.1 Front page of the first issue of Skilling-Magazin, 9 May 1835. (Photo: the author).
12.2 Front page of Penny Magazine, 26 January 1833. (Photo: Internet Archive).
12.3 King Charles John’s arrival in Christiania 21 December 1838, English wood engraving after drawing by J. Flintoe. Skilling-Magazin, 10 August 1839. (Photo: the author).