v. 1. Journal of a voyage to New South Wales
v. 2. Aspects of nature in different lands and different climates / Alexander von Humboldt
v. 3. Himalayan journals, v. 1
v. 4. Himalayan journals, v. 2
v. 5. Naturalist on the River Amazons, v. 1
v. 6. Naturalist on the River Amazons, v. 2
v. 7. The Malay Archipelago, v. 1
v. 8. The Malay Archipelago, v. 2
v. 9. The Gold Regions of South-Eastern Africa.