of what appeared to be the abiding reality of the African Church.
My acknowledgements are due especially to Miss J. Ferrier and Miss Irene Fletcher, respectively Librarians of the C.M.S. and the L.M.S.; to Miss B. D. Gibson, who guided me to the relevant papers at Edinburgh House; to Professor W. Freytag and Fräulein Dohrmann of Hamburg for invaluable help in locating journals in a library much disorganised by war; to Father J. P. Thoonen of Mill Hill for much advice about Roman Catholic sources; to Lord Harlech for his helpful comments upon a former version of the final chapter; to Miss Margery Perham for kindly and judicious counsel over the whole range of a former draft; to Professor Norman Sykes for his sympathetic and sustaining supervision of my work during four years of research; and, above all, to my wife, for whose unflagging interest and encouragement no thanks can be adequate.
WOUGHTON-ON-THE-GREEN, JANUARY 1952.
Acknowledgement is due to Mrs. George Bambridge, Messrs. Methuen & Co. Ltd., Messrs. Doubleday & Co. Inc., and The Macmillan Company of Canada Ltd., for permission to include a verse from 'The White Man's Burden' from The Five Nations by Rudyard Kipling. Copyright 1899 by Rudyard Kipling.