10.68. Foreign and Commonwealth Office, London: The Ocean Islands phosphates - discussions Box 21 Unit ID: 6
12.11.1907. Gaze Snr. to Secretary PPC. Supplement to report on Nauru, Dickinson's first visit Box 22 Unit ID: 8
12.12.1913. Dickinson to Schonian. Sampling of Angaur phosphate (from a deposit being worked by the Germans) Box 20 Unit ID: 8