He sets out to explore Manyuema and the river Lualaba--Loss of forty-two letters--His feebleness through illness--He arrives at Bambarré--Becomes acquainted with the soko or gorilla--Reaches the Luama River--Magnificence of the country--Repulsiveness of the people--Cannot get a canoe to explore the Lualaba--Has to return to Bambarré--Letter to Thomas, and retrospect of his life--Letter to Sir Thomas Maclear and Mr. Mann--Miss Tinné--He is worse in health than ever, yet resolves to add to his programme and go round Lake Bangweolo--Letter to Agnes--Review of the past--He sets out anew in a more northerly direction--Overpowered by constant wet--Reaches Nyangwe, the farthest point northward in his last Expedition--Long detention--Letter to his brother John--Sense of difficulties and troubles--Nobility of his spirit--He sets off with only three attendants for the Lualaba--Suspicions of the natives--Influence of Arab traders--Frightful difficulties of the way--Lamed by footsores--Has to return to Bambarré--Long and wearisome detention--Occupations--Meditations and reveries--Death no terror--Unparalleled position and trials--He reads his Bible from beginning to end four times--Letter to Sir Thomas Maclear--To Agnes--His delight at her sentiments about his coming home--Account of the soko--Grief to heat of death of Lady Murchison--Wretched character of men sent from Zanzibar--At last sets out with Mohamad--Difficulties--Slave-trade most horrible--Cannot get canoes for Lualaba--Long waiting--New plan--Frustrated by horrible massacre on banks of Lualaba--Frightful scene--He must return to Ujiji--New illness--Perils of journey to Ujiji--Life three times endangered in one day--Reaches Ujiji--Shereef has sold off his goods--He is almost in despair--Meets Henry M. Stanley and is relieved--His contributions to Natural Science during last journeys--Professor Owen in the _Quarterly Review_. CHAPTER XXI. LIVINGSTONE AND STANLEY. A.D. 1871-1872. Mr. Gordon Bennett sends Stanley in search of Livingstone--Stanley at Zanzibar--Starts for Ujiji--Reaches Unyanyembe--Dangerous illness--War between Arabs and natives--Narrow escape of Stanley--Approach to Ujiji--Meeting with Livingstone--Livingstone's story--Stanley's news--Livingstone's goods and men at Bagamoio--Stanley's account of Livingstone--Refutation of foolish and calumnious charges--They go to the north of the lake--Livingstone resolves not to go home, but to get fresh men and return to the sources--Letter to Agnes--to Sir Thomas Maclear--The travelers go to Unyanyembe--More plundering of stores--Stanley leaves for Zanzibar--Stanley's bitterness of heart at parting--Livingstone's intense gratitude to Stanley--He intrusts his Journal to him, and commissions him to send servants and stores from Zanzibar--Stanley's journey to the coast--Finds Search Expedition at Bagamoio--Proceeds to England--Stanley's reception--Unpleasant feelings--Éclaircissement--England grateful to Stanley. CHAPTER XXII.