Pangwe-Expedition, recorded 86 cylinders that are complementary to his important monography Die Pangwe (Tessmann 1913). They contain music and oral literature of the Fang as well as some Ewondo-songs. Waldow Kamerun, 1907. The colonial doctor Hans Waldow recorded 29 cylinders with songs of the Bagyeli 2 , Banen, Bulu, Ewondo and Ngumba in Fudde, Lolodorf and Ndondo. Zenker Kamerun, 1908. Georg Zenker, botanist and important member of the colonial administration 3 , recorded 8 cylinders with dance songs of the Bakoko, Bulu and Mabi in Kribi. Two other collections have been recorded by Hornbostel in Berlin in 1909 with young Cameroonians who spent some time in the German capital: Archiv Kamerun contains 41 cylinders with songs from the Bakoko, Banoho, Bulu, Duala, Mabea and Malimba, sung by two young men from the Southern Cameroonian Atlantic coast. Archiv Jaunde contains 14 cylinders with songs, instrumental music and speech surrogates of the Ewondo ("Jaunde" in colonial German). 1.1. Speech surrogates in Archiv Jaunde Four cylinders of this collection document speech surrogates produced [77] on two different instruments: cylinders n° 2, 3 and 5 concern messages played on a slitdrum, n° 13 is played on a double-bell. Three of them are analytical recordings and explicitely illustrate the link between a drummed and a spoken message. A fifth drum language recording is mentioned in the documentation (n° 14), but the mention is crossed out and replaced by comments on the xylophone recorded on cylinders n° 8 to 12. The recording confirms this information: cylinder n° 14 presents the scale of a xylophone. The documentation of these four recordings is heterogeneous and very poor (see the documentation sheet in the appendix). The note for n° 5 mentions only "Lament on the speechdrum", but contains no indication of what is supposed to be said, neither in German, nor in Ewondo. For the other recordings, there is at least a German translation of the drummed phrase, for n° 3 also a linguistic transcription of the Ewondo phrase. Unfortunately, contrary to other recordings by Hornbostel, this is the entire available information. The lack of documentation is a problem already addressed by Susanne Ziegler in her article on Hornbostel's role in the activities of the Archive. According to the author, it is possible that the actual documentation might not be complete (Ziegler 1998:147). 2. Hornbostel's publications on African Music Another point already mentioned by Ziegler (1998:154) is that in many cases there is no written scientific exploitation of the recordings by Hornbostel himself. This seems to be the case not only with the collection considered here, but also with the collection Archiv Kamerun. In his survey of Hornbostel's studies of African Music (Hornbostel 1909, 1917, 1928, 1933), Gerd Grupe mentions six populations from Tanzania, Ruanda and Cameroon, but not the Ewondo and none of the other African cultures documented by recordings made in the Archive either by Hornbostel himself or by another person 4 (Grupe 1998:107)...