Subject
- Medical supplies15
- Military art and science -- Early works to 180015
- Navigational aids15
- Payment15
- Petroleum refineries15
- Propaganda, Anti-British15
- Security15
- Steamships15
- Telecommunications15
- Treaty of Friendship, Commerce and Navigation between Great Britain and Muscat (1891)15
- Banks14
- Financial aid14
- Food resources14
- Funds14
- Geography--Early works to 180014
- Government spending14
- Military supply14
- Pharmacology--Early works to 180014
- Post offices14
- Radio14