Obstructions became thicker and canal cutting almost continuous. The men got sick with fever. The grass swarmed with snakes and poisonous ants. The black troops proved hardier and more patient than the Egyptians. There were some ducks but not enough to supply meat for all. The Colonel discovered a hippopotamus some distance off and ordered a boat to pull for him. He disappeared on its approach, but soon reappeared about thirty yards away. The Colonel planted a bullet in his head. The animal sank, but was found floating near the fleet the next morning. The men speedily cut him up and were delighted with their supply of fresh meat. On March 21, while the men were digging out the steamers which had become blocked by the floating masses of vegetation, they felt something struggling beneath their feet. Scrambling away, they beheld the head of a crocodile protruding through the sudd. The black soldiers, armed with swords and bill-hooks, attacked him, and soon his flesh gladdened the cooking pots of the Soudan regiment. [Illustration: A CROCODILE MOBBED IN THE SUDD.] In thirteen days the fleet only made twelve miles through the sudd, although a thousand men were at work all the time cutting and tugging. The Egyptians fell sick by scores, and many died. On March 27, another hippopotamus was killed, which gave the men a supply of fresh meat. Several buffaloes were also killed. After having wasted fifty-one days since leaving Kartoum, it was discovered that the Bahr Giraffe became too shallow for further venture. Return was therefore compulsory, much to the disgust of the officers but to the great satisfaction of the troops. The whole season was lost, for no other route was practicable till there should come a flush of waters. And the return was hardly less difficult than the upward progress. The canals they had cut were filled with vegetable masses and had to be re-opened. But they finally reached the White Nile again and in time to intercept a Turkish slave party who had been raiding the Shillooks. Seventy-one slaves were found closely stowed away in their boat and eighty-four concealed on shore, under guard. These were liberated, and both slaves and captors informed that slavery had been abolished by the Khedive’s order. The party sailed down the White Nile to its junction with the Sobat and there, on high, hard ground, prepared a permanent camp——really a little town with houses and workshops. The acquaintance of the Shillooks was made and cordial relations established. They brought their vegetables to camp to sell, and proved very kind and useful. But they had been greatly demoralized by the Arab kidnappers, as had all the tribes on both sides of the river.