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PREFACE.
I cannot let this small romance go to press without prefacing it with a word of cordial thanks to Mr. P. G. Houlgrave, of 28, Millman Street, Bedford Row. To this gentleman I owe the accuracy of my African chapters, and I am much indebted to him for the copious details with which he furnished me.
A. CONAN DOYLE.
March 14th, 1890.
