himself satisfied by the recapture of our supplies of cereals and of our camels, and was going to take back the camels at once to Faya. He calculated that as soon as the first spell of panic was over the rebels would get together to discuss the advisability of a counter-attack. His forecast turned out correct. Resuming the pursuit under cover of night, he again came in sight of the raiding-party towards three in the morning, in regular order once more, and holding a palaver round the bivouac fires. Closing in to short range he poured in a rapid fire, immediately followed by a bayonet-charge that laid out a dozen Toubous, while the rest in utter panic fled at top speed in all directions, some on foot, others hanging on to the tails of their camels that made off at full gallop without leaving time for their riders to get astride. The hunt went on till noon, and supplied us with a few prisoners who gave the most precise details of the treachery of the Nakazza chief; after which Amboroko retraced his steps to take in charge the convoy of supplies and bring it into Faya. But he was of opinion that our brave soldiers fallen the day before were not sufficiently avenged, and providing himself with fresh camels he set out at once in pursuit, seeking all across the desert the tracks of those who had escaped his two counter-attacks. Going further and further afield, he found himself finally 300 miles to the eastward among the rocks of Erdi, where the families of Mohammed Erbeimi’s Toubous were in hiding, and engaged in two fights with them which cost the rebels some thirty killed; but the old chief unluckily succeeded once more in bringing his head safely out of the business. Early in 1917 the revolt might be considered as crushed. The tribes had begun to discuss terms of submission, all except Mohammed Erbeimi’s tribe, the remnant of which had taken refuge in the massif of Ouri 300 miles north-east of Faya, and was not in a condition to do any harm for a certain time. =9. Homeward Journey.= Then I saw my interminable sojourn in the desert brought to an end by the person of Captain Gauckler, an experienced commander of camel-corps, who had seen most of his service in the African colonies, and was come from the French front to replace me in Borkou. Thus my turn on the Western Front was to come early enough to enable me to share in the gigantic battle that could be foreseen, from the hour when Russia fell out of the fight, as imminent and decisive. The French Government having replied favourably to my request for permission to return to France by way of Egypt, this return journey would allow me to effect the geodetic and topographical liaison between Borkou and Dar Four—in other words, to accomplish the last part of the geographical programme that toward the end of the last century I had set myself to carry out.