Subject
- River navigation6
- Euphrates Expedition (1835-1837)3
- River surveys2
- Shipping2
- Surveys2
- Armed forces1
- Blockades1
- Cholera1
- Civil aircraft1
- Concessions1
- Development policy1
- Drinking water1
- Economic competition1
- Euphrates River--Surveys1
- Foreign relations1
- Income tax1
- Indigo1
- Mail steamers1
- Marine salvage1
- Mesopotamian Campaign (1914-1918)1