Summary 1. It is pointed out that the drumsignals of the Lokele tribe are the tonal patterns of stereotyped phrases composed of words which do not differ essentially from the words of spoken Kele. Since Kele is a bitonemal language the two-toned slit drum is adequate for these signals. 2. The slit drum and other instruments used to transmit the drum-language are described. 3. Examples are given of the stereotyped phrases making up the language, and the system of drum-names is described. These names are shown to have value for local, historical and ethnographical research. 4. Statistics are given showing the marked, decrease in drum-signalling of recent years rmong the Lokele people.