Image sources

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Figure 1: The image shows the creation of the homunculus in Goethe's Faust II. Illustration from the 19th century (Image source: https://commons.wikimedia.org/w/index.php?curid=38582693, in the public domain).

Picture 2: The factory of Johann Rudolf Geigy in Basel. Lithograph printed by Orell F├╝ssli in Zurich around 1910 (Image source: Swiss National Museum, Zurich, LM-76656)

Figure 3: Construction progress at "Bau 2" of F. Hoffmann-La Roche AG in Basel in January 2022 (Image source: https://commons.wikimedia.org/wiki/File:RocheBau2Basel01-22.jpg, licensed under CC BY-SA 4.0)