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Subject
cardiology
5
Astrophysics
4
Geology
4
seismology
4
Astronomy
3
Atmospheric Science
3
Geophysics
3
geology
3
nineteenth century (dates CE)
3
Geography
2
Meteorology
2
Paris
2
cemeteries
2
coal resources
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economic geology
2
engineering geology
2
funerary structures
2
landslides
2
sedimentology
2
slope stability
2