Joseph Everett Dutton (1877-1905), and John Lancelot Todd (1876-1949), From Volume 5 of a collection of 7 albums containing photographs taken during the Tenth (Trypanosomiasis) Expedition to the Gambia and French Senegal in 1902, and the Twelfth (Trypanosomiasis) Expedition to the Congo Free State in 1903, sent out by the Liverpool School of Topical Medicine.