Correspondence on the Mackie Ethnological Expedition, for consideration of Council of the Royal Society Letters and papers relating to the anthropological expedition to Central Africa in 1919-1920, led by Reverend John Roscoe and funded by Peter Jeffrey Mackie. This correspondence deals with the time immediately after Roscoe's return to England, and preparations for publishing reports and photographs of the expedition. These letters are a chronological continuation of the correspondence in CD/50, CD/51, and CD/52. 1921