13. 'Book 133' Secret letters inward Date: 1841/1842 Language: English Geographic region: Trucial CoastKarrack (island)Eastern Africa
14. 'Book 140 1843' letters inward Date: 1843/1843 Language: English Geographic region: Trucial Coast
15. 'Book 141 1844-1849' secret letters inward Date: 1843/1848 Language: English Geographic region: Eastern Africa
16. ‘Book 153 1847’ Vol 153 Letters inward Date: 1847/1847 Language: English Geographic region: Eastern Africa
17. ‘Book 158 1847-8’ Vol 158 Letters inward Date: 1847/1848 Language: English Geographic region: Trucial CoastEastern Africa
18. ‘Book 161 1847’ Vol 161 Letters inward Date: 1847/1847 Language: English Geographic region: AdenEastern Africa
20. ‘Vol: VI. Persian Gulph [Gulf]’ Date: 1828/1829 Language: English Geographic region: MochaBahreinPersian Gulf
21. 'Vol: 1. Affairs of the Persian Gulf' Date: 1834/1836 Language: English Geographic region: DebayeAboothabeeSoweek
22. ‘Secret Letters received, by way of Marseilles, March 19.1856’ Date: 1856/1856 Language: English Geographic region: PersiaHerātThibet
23. ‘Secret Letters received from India, by way of Marseilles, Oct.4.1856’ Date: 1856/1856 Language: English Geographic region: HerātPersiaCandaharKelat
24. ‘Affairs of the Persian Gulf. Vol:I’ Date: 1831/1834 Language: English Geographic region: BushireSowackSohar