During the journey in Inner Mongolia, the geological results of which we have summarized in the preceding communication, we had the good fortune, F. Licent and I, of finding, in three different places (along the Choei Tong K'eou in the South of Ning Hia, along the Sjara Osso Gol in the southeastern corner of the Ordos, and near the village of You Fang T'eou in the South of Yu Lin), palaeolithic remains, in excellent stratigraphical and palaeontological conditions.