37. Vol 59: Letters Inward Contributor: President and Governor of Bombay in Council (correspondent) Date: 1829/1829 Language: EnglishArabic Geographic region: BahreinMuscat Extent: 1 volume, 3 items (18 folios)
38. Vol 66: Letters Inward Contributor: Elphinstone Institution (correspondent) Date: 1829/1830 Language: EnglishArabicHindi Geographic region: CalicutMuscatTellicherry Extent: 1 volume (40 folios)
39. British Agents Contributor: HM Ambassador to Iran (correspondent)Sultan of Muscat and Oman, Āl Bū Sa'īd Dynasty (correspondent)Political Agent and Consul, Zanzibar (correspondent) Date: 1857/1862 Language: EnglishArabicFrench Geographic region: MuscatShargahSheraz Extent: 1 volume (318 folios)
40. Native Letters Outward Date: 1870/1872 Language: EnglishArabicPersian Extent: 1 volume (195 folios)
41. Native Letters Outward Date: 1856/1859 Language: EnglishArabicPersian Extent: 1 volume (140 folios)
42. Native Letters Outward Date: 1863/1865 Language: EnglishArabicPersian Extent: 1 volume (142 folios)
43. Letter from Syed Majid [Sayyid Majid bin Said Al-Busaid] addressed, via Colonel Lewis Pelly, to Ameer Abdullah [Adbullah bin Faisal bin Turki al-Saud] Date: 1869/1871 Language: ArabicEnglish Extent: 3 folios
45. Letter to Lieutenant-Colonel Sir Ephraim Gerrish Stannus, Resident in the Persian Gulf, from the Acting Secretary in the Bombay Persian Secretary's Office Date: 1825/1825 Language: EnglishArabic Extent: 4 folios
46. Letter to Thuwaini bin Said, Sultan of Muscat from an undisclosed author (Lewis Pelly?) Date: 1862/1866 Language: Arabic Extent: 2 folios
47. Letter no.18 to Lieutenant-Colonel Sir Ephraim Gerrish Stannus, Resident in the Persian Gulf, from William Newnham, Chief Secretary, Government of Bombay Date: 1825/1825 Language: EnglishArabic Extent: 5 folios
48. Letter no.402 of 1852 from Captain Arnold Kemball, Resident in the Persian Gulf, to Arthur Malet, Chief Secretary of the Government Bombay Date: 1852/1852 Language: EnglishArabic Extent: 2 folios