Abstract: The file consists of correspondence regarding the proposed survey of the channel inside Masirah Island [Jazīrat Maşīrah] off the coast of Oman by the surveying ship HMS
Challenger.Correspondents include the Admiralty Intelligence Division, and the India Office.The file includes a divider which gives a list of correspondence references contained in the file by year. This is placed at the back of the correspondence.Physical description: Foliation: the foliation sequence (used for referencing) commences at the front cover with 1, and terminates at the inside back cover with 4; these numbers are written in pencil, are circled, and are located in the top right corner of the recto side of each folio.