Subject
- Concessions32
- Smuggling31
- Biography30
- Boundaries30
- Letters (documents)30
- Medicine--Early works to 180030
- Slave emancipation30
- Bilateral relations29
- Wolof (African people)--History28
- Birth27
- Exports27
- Pearl industry and trade26
- Art25
- Land ownership25
- Accounting and Finance24
- Airfields24
- Petroleum industry24
- Civil aviation23
- Customs administration23
- Geometry--Early works to 180023