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Subject
- History9
- Description and travel6
- Travel6
- Natural history3
- Scientific expeditions3
- Discoveries in geography2
- Discovery and exploration2
- Martius, Karl Friedrich Philipp von, 1794-18682
- Naturalists2
- Nature conservation2
- Spix, Johann Baptist von, 1781-18262
- Animal painters1
- Art and science1
- Audubon, John James, 1785-18511
- Bee culture1
- Biodiversity1
- Birds1
- Botany1
- Cape honeybee1
- Ecology1