Comparative handbook of Congo languages: being a comparative grammar of the eight principal languages spoken along the banks of the Congo river from the west coast of Africa to Stanley Falls, and of Swahili, the 'lingua franca' of the country stretching thence to the east coast
George Grenfell and the Congo: a history and description of the Congo Independent State and adjoining districts of Congoland, together with some account of the native peoples and their languages, the fauna and flora; and similar notes on the Cameroons and the island of Fernando Pô, the whole founded on the diaries and researches of the late Rev. George Grenfell, B.M.S., F.R.G.S.; and on the records of the British Baptist Missionary Society; and on additional information contributed by the author, by the Rev. Lawson Forfeitt, Mr Emil Torday, and others
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