CONTENTS (#40, December 1993)

Editor: John Bower

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Editorial....................................................................................................................................1

Botswana

Prehistoric mining and new discoveries of rock art at the Tsodilo Hills
      Lawrence H. Robbins, Alec Campbell, Michael L. Murphy, and Troy Ferone...................2

Cameroon

Etude pédologique dans un site archéologique de la région Forestière d'Ambam,
      Vallée du Ntem (sud-Cameroun)
      Jean Bosco Ella..................................................................................................................5

Recherches archéologiques dans la Vallée du Ntem, province du sud-Cameroun Méridional:
      premiers résultats du site de Mekomo
      J. Paul Ossah Mvondo......................................................................................................10

Canary Islands

The "Zenata stone": graffiti ancient or modern from the Canary Islands
      Michael R. Eddy................................................................................................................13

Ethiopia

The 1993 excavations at Ona Enda Aboi Zague (Aksum, Tigray)
      Kathryn A. Bard and Rodolfo Fattovich..........................................................................14

Gabon

The Neolithic/Iron Age transition in the middle reaches of the Ogodue valley in Gabon:
      chronology and cultural change
      Richard Oslisly..................................................................................................................17

Ghana

Geometric microliths from northern Ghana and notes for a tentative morphological typology
      Joanna Casey...................................................................................................................22

Nigeria

Report on excavations at Gajiganna, Borno state, northeast Nigeria
      Peter Breunig, Abubakar Garba, Detlef Gronenborn, Wim Van Neer,
      and Peter Wendt
...............................................................................................................30

A recent survey of some archaeological sites in the north central Yorubaland
      (Kwara state, Nigeria)
      Aribidesi Usman...............................................................................................................42

Sudan

Research on early Khartoum sites
      Elena A. A. Garcea...........................................................................................................45

Tanzania

Excavations at Dakawa, an Early Iron Age site in east-central Tanzania
      Randi Haaland..................................................................................................................47

Uganda

Houses, pots, and more cows: the 1991 excavation season at Ntusi
      Andrew Reid and Jeremy Meredith..................................................................................58

Forum.....................................................................................................................................61

Publications............................................................................................................................68

Meetings................................................................................................................................69