J.A. Coetzee, E.M. van Zinderen Bakker, both Institute for Environmental Sciences, University of the Orange Free State, Bloemfontein.

• Foreword; Mécanismes climatiques actuels et paléoclimats au Sahara; Run-off and fluvial formation processes in the Tibesti mountains as indicators of climatic history in the central Sahara during the late Pleistocene and Holocene; Contributions to the geo-ecology and landscape history of the Messak-Mangueni escarpment (central Sahara); Paléolimnologie des lacs du bassin Tchadien au Quaternaire recent; Four abstracts of publications on the Sahara; Late Quaternary palaeo-environments of the Sahara region; Report on palynological research in Egypt; Prehistory and geomorphology in Middle Egypt; Diatomées et évolution de trois milieux Ethiopiens d 'a ltitu d e differente, au cours du Quaternaire supérieur; Late Quaternary precipitation estimates for the Ziway-Shala basin, Southern Ethiopia; PIio-Pleistocene environments in south-central Ethiopia; Résultats préliminaires sur la faune des rongeurs de la formation Pliocène de Haddar (Ethiopie); Aspects of the glaciation of Mt. Elgon, East Africa; Quaternary stratigraphy of Mount Kenya: A reconnaissance; Holocene environment and Capsian subsistence in Algeria; Les formations sabloargilleuses et calcaires PIio-Pléistocènes de Louga (Sénégal); A late Quaternary continuous climatic record from palynology of three marine cores off Senegal; Palynological aspects of the sedimentary basin off the Cameroon coast, in relation to stratigraphy and palaeoecology; Palynological study in the Niger delta; Le Quater-naire supérieux du plateau continental Congolaise. Exemple d' évolution paléoocéanographique d'une plate-forme depuis environ 50, 000 ans.; Beitrag zur historischen Tiergeographie Südafrikas; Late Quaternary events in the Chilwa Basin, Malawi; The equatorial rain forest: A geological history (Book announcement).

J.A. Coetzee, E.M. van Zinderen Bakker, both Institute for Environmental Sciences, University of the Orange Free State, Bloemfontein.

• Foreword; Mécanismes climatiques actuels et paléoclimats au Sahara; Run-off and fluvial formation processes in the Tibesti mountains as indicators of climatic history in the central Sahara during the late Pleistocene and Holocene; Contributions to the geo-ecology and landscape history of the Messak-Mangueni escarpment (central Sahara); Paléolimnologie des lacs du bassin Tchadien au Quaternaire recent; Four abstracts of publications on the Sahara; Late Quaternary palaeo-environments of the Sahara region; Report on palynological research in Egypt; Prehistory and geomorphology in Middle Egypt; Diatomées et évolution de trois milieux Ethiopiens d 'a ltitu d e differente, au cours du Quaternaire supérieur; Late Quaternary precipitation estimates for the Ziway-Shala basin, Southern Ethiopia; PIio-Pleistocene environments in south-central Ethiopia; Résultats préliminaires sur la faune des rongeurs de la formation Pliocène de Haddar (Ethiopie); Aspects of the glaciation of Mt. Elgon, East Africa; Quaternary stratigraphy of Mount Kenya: A reconnaissance; Holocene environment and Capsian subsistence in Algeria; Les formations sabloargilleuses et calcaires PIio-Pléistocènes de Louga (Sénégal); A late Quaternary continuous climatic record from palynology of three marine cores off Senegal; Palynological aspects of the sedimentary basin off the Cameroon coast, in relation to stratigraphy and palaeoecology; Palynological study in the Niger delta; Le Quater-naire supérieux du plateau continental Congolaise. Exemple d' évolution paléoocéanographique d'une plate-forme depuis environ 50, 000 ans.; Beitrag zur historischen Tiergeographie Südafrikas; Late Quaternary events in the Chilwa Basin, Malawi; The equatorial rain forest: A geological history (Book announcement).

J.A. Coetzee, E.M. van Zinderen Bakker, both Institute for Environmental Sciences, University of the Orange Free State, Bloemfontein.

• Foreword; Mécanismes climatiques actuels et paléoclimats au Sahara; Run-off and fluvial formation processes in the Tibesti mountains as indicators of climatic history in the central Sahara during the late Pleistocene and Holocene; Contributions to the geo-ecology and landscape history of the Messak-Mangueni escarpment (central Sahara); Paléolimnologie des lacs du bassin Tchadien au Quaternaire recent; Four abstracts of publications on the Sahara; Late Quaternary palaeo-environments of the Sahara region; Report on palynological research in Egypt; Prehistory and geomorphology in Middle Egypt; Diatomées et évolution de trois milieux Ethiopiens d 'a ltitu d e differente, au cours du Quaternaire supérieur; Late Quaternary precipitation estimates for the Ziway-Shala basin, Southern Ethiopia; PIio-Pleistocene environments in south-central Ethiopia; Résultats préliminaires sur la faune des rongeurs de la formation Pliocène de Haddar (Ethiopie); Aspects of the glaciation of Mt. Elgon, East Africa; Quaternary stratigraphy of Mount Kenya: A reconnaissance; Holocene environment and Capsian subsistence in Algeria; Les formations sabloargilleuses et calcaires PIio-Pléistocènes de Louga (Sénégal); A late Quaternary continuous climatic record from palynology of three marine cores off Senegal; Palynological aspects of the sedimentary basin off the Cameroon coast, in relation to stratigraphy and palaeoecology; Palynological study in the Niger delta; Le Quater-naire supérieux du plateau continental Congolaise. Exemple d' évolution paléoocéanographique d'une plate-forme depuis environ 50, 000 ans.; Beitrag zur historischen Tiergeographie Südafrikas; Late Quaternary events in the Chilwa Basin, Malawi; The equatorial rain forest: A geological history (Book announcement).