The members of Bishop Mackenzie's party, on the loss of their head, fell back from Magomero on the highlands, to Chibisa's, in the low-lying Shire Valley; and Thornton, finding them suffering from want of animal food, kindly volunteered to go across thence to Tette, and bring a supply of goats and sheep. We were not aware of this step, to which the generosity of his nature prompted him, till two days after he had started. In addition to securing supplies for the Universities' Mission, he brought some for the Expedition, and took bearings, by which he hoped to connect his former work at Tette with the mountains in the Shire district. The toil of this journey was too much for his strength, as with the addition of great scarcity of water, it had been for that of Dr. Kirk and Rae, and he returned in a sadly haggard and exhausted condition; diarrhoea supervened, and that ended in dysentery and fever, which terminated fatally on the 21st of April, 1863. He received the unremitting attentions of Dr. Kirk, and Dr. Meller, surgeon of the "Pioneer," during the fortnight of his illness; and as he had suffered very little from fever, or any other disease, in Africa, we had entertained strong hopes that his youth and unimpaired constitution would have carried him through. During the night of the 20th his mind wandered so much, that we could not ascertain his last wishes; and on the morning of the 21st, to our great sorrow, he died. He was buried on the 22nd, near a large tree on the right bank of the Shire, about five hundred yards from the lowest of the Murchison Cataracts--and close to a rivulet, at which the "Lady Nyassa" and "Pioneer" lay.