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PREFACE. 
M any and deep are the obligations we are under to friends 
who have given us their sympathy^ and who have felt a 
lively interest in our undertakings in Central Africa : to them 
are due our sincere thanks. Of these true and tried supporters^ 
some have passed away; In Memoriam/-’ their cherished names 
we first recount. To the late Madame Tinne for the welcome 
accorded to us at a time of sickness and depression^ in the Bahar 
il Gazal^ and for manifold subsequent acts of kindness^ we are 
particularly indebted. The sincere friendship of her sister^ Ma- 
demoiselle Adrienne,, Baronne de Capellan^ who unfortunately 
succumbed at Khartoum^ will never be forgotten by us. To Dr. 
Hodgkin, M.D., F.B.G.S., who died whilst accompanying that 
noble philanthropist, Sir Moses Montefiore, on a mission to the 
East, and to Mr. Thomas Brookin, E.E.G.S., we owe also our 
sincere acknowledgments. 
Dr. J enzig, many years a resident at Khartoum, and Monsieur 
de Pryssenaere, w^ho died in the rainy season of 1865, on the Blue 
Nile, whilst engaged on a scientific exploration of the northern and 
eastern territories of the Sob^t, we grieve to record as no more. 
Of the living, our near relatives, Mr. and Mrs. Me Quie, of 
Blundell Sands, near Liverpool, claim a first place for our acknow- 
ledgments for their more than brotherly and sisterly devotion to 
us and our interests during our absence in Africa. To Mr. John 
Tinn^ of Briarley, near Liverpool, and Mr. James Macqueen, of 
Kensington, we cannot pay too high a tribute for the valuable 
services and various acts of kindness of which we have been the 
recipients during our travels and since our return. To the former 
we are also indebted for photographic views of Gondokoro and 
