Black ivory : a tale of adventure among the slavers of East Africa

Date of publication inferred from imprint and inscription: A.G. Watson was the manager of the Toronto Willard Tract Society between 1888 and 1891, cf. Elizabeth Hulse's Dictionary of Toronto printers, publishers..., p. 263; inscription on the flyleaf dated June 1891. An adventure story based on the history of the slave trade as practiced until the late nineteenth century.