Volume III of a series of correspondence regarding the visit of the British Association to South Africa in 1905. These letters relate largely to the section of the visit which involved the Transvaal. They include correspondence between David Gill and the High Commissioner's Office, the South African Association for the Advancement of Science, the Colonial Secretary's Office, the British Association and the British Association Reception Committee in Johannesburg. There are also minutes of meetings of the British Association Reception Committee; details of the group's itinerary, with a copy of the proposed official programme of the visit, dated 9 May 1905; and general correspondence relating to arrangements for the visit.