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Materia
- Area Studies 51
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- History 25
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- History of Science 10
- Palaeontology and Life History 10
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- Literature 8
- History of Science: General Interest 7
- Environmental Science 5
- Geography 4
- Sedimentology and Stratigraphy 4
- Archaeology 3
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- Geomorphology and Physical Geography 3
- Petrology and Volcanology 3
- Plant Sciences 3
- Structural Geology 3
- Atmospheric Science and Meteorology 2
- General Science 2