This volume, originally published in 1970, presents a survey of the languages spoken in an area extending from the Atlantic coast at the Sengal River eastward to the Lake Chad region. The area covered by this volume is mainly a goegraphical one, so it follows that not all the languages included are related to one another, though a certain degree of homogeneity appears.

This is a collection of 37 of the most important, enduring, and influential essays by one of the great linguists of this century, gathered from a wide range of journals and books spanning four decades.

This volume deals with issues on negation patterns in languages of West Africa and the adjacent north and east. The first aim is to provide data on various aspects of negation in African languages. Although the topics addressed here reflect a great diversity of negation patterns, the following typological features have been identified to be prominent in our region: conflict or even incompatibility between negation and focus, use of other indirect means of negating non-indicative mood (covered under the term ‘Prohibitive’), different negation patterns in different Tense-Aspect-Moods (e.g. Imperfective vs. Perfective), lack of negative indefinites, and disjunctive negative marking (often referred to as ‘double negation’). The articles presented here show that areal factors have played a significant role in the development of negation strategies in the languages of West Africa and beyond. On the other hand genetic factors seem to be less prominent.

The result of years of work by scholars from all over the world, The UNESCO General History of Africa reflects how the different peoples of Africa view their civilizations and shows the historical relationships between the various parts of the continent. Historical connections with other continents demonstrate Africa's contribution to the development of human civilization. Each volume is lavishly illustrated and contains a comprehensive bibliography.

A Comparative Phonology of Gbe (Publications in African Languages and Linguistics, No 14).