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xi Acknowledgement I would like to thank the Alexander von Humboldt Foundation and my German academic friends and collaborators, Professors Eckhard Breitinger of the University of Bayreuth and Wilhelm Vossenkuhl of the University of Munich, for their continued interest in and encouragement of my work. I am inexpressibly grateful to Ulli and Georgia Beier and Elizabeth (Sally) M. Chilver for their incessant and multifarious help and encouragement. I thank GRAPHICAM, Yaounde, and especially Tobias Neba, for preparing a camera-ready copy for the publisher. I also thank KOLA TREE PRESS, Bellingham, USA, and especially Judith and Milton Krieger, for providing the context within which this publication became viable and particularly for their boldness in experimenting with unconventional publishing methods. ...

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