Humbert first arrived in Japan in 1863/4, and signed a treaty with Japan, on behalf of the Swiss government, in the 12th month that same year.
An account of his experiences was published as Le Japon illustré in 1870, in Paris, and then in translation into English as Japan and the Japanese by a London-based publisher in 1874. It includes some 140 illustrations of sights and scenes in Edo, Kamakura, Kyoto, and Nagasaki, and text describing Japanese politics, economics, and culture,
- Peter Kornicki, "New Books for Old," Monumenta Nipponica 62:1 (2007), 99n5, 105.
- Gallery labels, National Museum of Japanese History.