37. ‘Vol 125 Native letters inward’ Contributor: Native Agent, Bahrain (correspondent)Native Agent, Muscat (correspondent)Native Agent, Trucial Coast, Sharjah (correspondent)Newswriter at Shiraz (correspondent) Date: 1840/1841 Language: English Geographic region: Trucial CoastBahreinPersiaMuscatSheraz Extent: 1 volume (133 folios)
38. ‘Vol 126 Letters outward’ Contributor: Senior Naval Officer in the Persian Gulf (correspondent) Date: 1840/1841 Language: English Extent: 1 volume, 5 items (15 folios)
39. 'Vol 166 1850 Muscat' Contributor: Political Agent and Consul, Zanzibar (correspondent)Emir of Najd, Wahhabi dynasty (correspondent)Samuel Hennell (correspondent) Date: 1850/1850 Language: English Geographic region: Rass el KhymaDebaiSoharShinas Fort Extent: 1 file, 15 items (41 folios)
40. 'Vol 166: 1850 Slave Trade' Contributor: Political Agent and Consul, Zanzibar (correspondent)Samuel Hennell (correspondent)Sir Knight Justin Sheil (correspondent) Date: 1850/1850 Language: English Geographic region: CongoonKarrack (island) Extent: 1 file, 16 items (38 folios)
41. 'Vol 174 1851/52 General or Miscellaneous and Packets' Contributor: Residency Surgeon, Persian Gulf (correspondent)Political Agent and Consul, Zanzibar (correspondent)Commander of the brigantine Tigris (correspondent)Commander of the brigantine Euphrates (correspondent)Samuel Hennell (correspondent) Date: 1850/1851 Language: English Geographic region: ZanzibarQaisRass el KhymaSoharAbo ThabeeAdeedEuphrates RiverBushireEl BiddahKenn IslandBassidoreKateefCongoonDoahFowaritGutturInderabia Extent: 1 volume, 54 items (83 folios)
42. 'Vol 177 Commerce and Miscellaneous letters inward and outward' Contributor: Royal Navy, Commander-in-Chief, East Indies Station (correspondent)Viceroy and Governor-General of India in Council (correspondent)Commander-in-Chief of the British Expeditionary Force in Burma, Second Anglo-Burmese War (correspondent)Commander of HMS Fox (correspondent) Date: 1852/1852 Language: English Geographic region: MartabanPersiaRangoonBasseinBurmaPeguProme Extent: 1 volume, 27 items (61 folios)
43. 'Vol 178 1852/53 Bahrain; Arabian Coast; Slave Trade; Muscat' Date: 1852/1852 Language: EnglishArabic Geographic region: Trucial Coast Extent: 1 file in two volumes (122 items, 338 folios)
44. ‘Vol 182 1852/53 Persia; Slave Trade; Muscat; Commerce; miscellaneous’ Contributor: King of Bahrain (correspondent)Political Agent and Consul, Zanzibar (correspondent)Sir Knight Arnold Burrowes Kemball (correspondent)Samuel Hennell (correspondent) Date: 1852/1852 Language: English Geographic region: PersiaBasraEuphrates River Extent: 1 volume, 38 items (57 folios)
45. 'Vol 195 1854/55 Bahrain; Arab Coast and Muscat; Slave Trade' Contributor: Political Agent, Turkish Arabia (recipient)Government of Bombay, Secretary to the Political Department (correspondent)Native Agent, Muscat (correspondent)HM Chargé d'Affaires to Iran (correspondent) Date: 1854/1855 Language: English Geographic region: Trucial CoastKateefLingahDemaum Extent: 1 volume (389 folios, 109 items)
46. 'Vol 196: 1854/55 Commerce' Contributor: Commissioner, Sind (correspondent)Shariarjee? Rustomjee (correspondent) Date: 1854/1854 Language: English Geographic region: Scinde, Province ofKurrachee Extent: 1 volume, 9 items (24 folios)
47. 'Vol 201 1855/56 Persia: correspondence with Tehran; Squadron; General' Contributor: HM Ambassador to Iran (correspondent)Governor of Bushire (correspondent)HM Chargé d'Affaires to Iran (correspondent) Date: 1855/1856 Language: English Geographic region: Persia Extent: 1 volume (80 folios)
48. ‘Vol 204 1855/56 Slave Trade; Bahrain, Arabian Coast and Muscat; Accounts and General’ Contributor: Government of Bombay (correspondent) Date: 1855/1856 Language: English Extent: 1 volume, 69 items (193 folios)