Decide to communicate with "Discovery," 247; departure of Egerton and Rawson, 248; their return, 249; Petersen frost-bitten, 249; heroic conduct, 251; efforts to save Petersen, 251; difficulties of the return journey, 253; Egerton's second start, 255; death of Petersen, 255. CHAPTER XXI. THE ROUTINE OF SLEDGE TRAVELLING. Departure of the sledges, 258; first camp, 260; intense cold, 262; arrival at the autumn depôt, 263; the parties separate, 264; duties of cook, 265; sledging breakfast, 266; luncheon, 266; halting for the night, 268; evenings in the tent, 270. CHAPTER XXII. THE NORTHERN DIVISION--TRAVELLING IN APRIL. Heavy ice encountered, 273; road-making over the ice, 275; struggling over hummocks, 278; daily routine, 279; continued cold, 280; excellence of the sledges, 281; first symptoms of disease, 282; a gale of wind, 283; heavy snow-drifts, 285; disease increasing, 286; excellent conduct of the men, 286; resolve to abandon one boat, 288; increased weight to drag, 289; intense cold, 290; state of the floes, 291; cross the 83rd parallel, 292; enormous hummocks, 293; hummocks and snow-drifts, 294; tracks of a hare seen, 296; young ice, 296; enforced rest, 297. CHAPTER XXIII. THE MOST NORTHERN POINT EVER REACHED BY MAN. Scurvy, 299; difficulties increasing, 300; struggling northwards, 301; hummocks discoloured by mud, 301; condition of party, 303; issue of lime-juice, 304; scorbutic symptoms, 305; the last advance, 306; most northern encampment, 307; soundings obtained, 308; the most northern position ever reached by man, 309. CHAPTER XXIV. RETURN OF THE NORTHERN DIVISION. Homeward bound, 312; increased sufferings, 314; courage of the men, 316; extreme weakness of the men, 316; abandonment of the second boat, 318; a snow-bunting seen, 319; the land reached, 321; Parr despatched for succour, 322; a stray dog, 322; death of Porter, 323; his burial, 323; saved, 325; return on board, 326. CHAPTER XXV. RETURN OF ALL THE SLEDGE TRAVELLERS. Causes of scurvy, 329; anxiety for Aldrich, 331; May sent to his rescue, 331; return of Aldrich, 332; care of the sick, 333; the welcome back, 335; decide to return to England, 337; musk-oxen, 338; shooting parties, 338; liberation of the ship, 341; under weigh, 342. CHAPTER XXVI. THE RETURN VOYAGE IN THE ICE. Preparations for abandoning ship, 344; communicate with "Discovery," 345; discovery of Eskimo relics, 347; a severe nip, 348; critical situation of ship, 349; Discovery Harbour, 349; return of Beaumont, 350; a frozen cave, 350; "Alert" forced on shore, 351; struggles with the ice, 352; pass Cape Fraser and Dobbin Bay, 353; a seal and fox shot, 354; reach the open sea, 354. CHAPTER XXVII. HOMEWARD BOUND.