Lot Essay
In February 1858 Livingstone was appointed H.M. Consul at Quilimane for the East Coast to the south of the dominions of Zanzibar, and for the independent districts in the interior, as well as commander of an expedition to explore Eastern and Central Africa. Lord Clarendon, the foreign minister threw himself heart and soul into the preparations for the expedition and procured a paddle-steamer of light draught for the Zambesi which was named Ma-Roberts. This vessel proved to be inadequate and whilst Livingstone awaited its replacement he decided to explore the Shire river which consequently led to his discovering Lake Shirwa in March 1859. "The Pioneer" and Bishop Mackenzie with his missionaries arrived on the 31st January 1861. Livingstone's aim was to plant the mission at Lake Nyassa and whilst they waited on the Island of Johanna, in the Comoro group, Livingstone and Bishop Mackenzie explored the Rovuma river here descibed. Thomas Berry Horsfall seems to have been crucial to Livingstone in the procuring of the new vessel.