"At Sennaar, then, I call it _cold_ when one, fully clothed and at rest, feels himself in want of fire. I call it _cool_ when one fully clothed and at rest feels he could bear more covering all over, or in part more than he has then on. I call it _temperate_ when a man, so clothed and at rest, feels no such want, and can take moderate exercise, such as walking about a room, without sweating. I call it _warm_ when a man, so clothed, does not sweat when at rest, but, upon moderate motion, sweats and again cools. I call it _hot_ when a man sweats at rest, and excessively on moderate motion. I call it _very hot_ when a man, with thin or little clothing, sweats much, though at rest. I call it _excessive hot_ when a man in his shirt, at rest, sweats excessively, when all motion is painful, and the knees feel feeble as if after a fever. I call it _extreme hot_ when the strength fails, a disposition to faint comes on, a straitness is found in the temples, as if a small cord was drawn tight around the head, the voice impaired, the skin dry, and the head seems more than ordinarily large and light." If Bruce's enemies could but have been subjected to this last degree of temperature, they would, perhaps, for once have agreed to admire the indefatigable exertions which, under such a climate, and in spite of ill health, he still continued to make. The history, ancient and modern, of the kingdom of Sennaar, its natural history, its trade, money, measures, diseases, etc., etc., were objects of his most eager inquiry; and it may truly be said, that his thirst for information seems actually to have increased with the difficulties which oppressed him. He made every exertion to leave Sennaar: in vain were represented to him the dangers which awaited him. "I persisted," says he, "in my resolution; I was tied to the stake. To fly was impossible; and I had often overcome such dangers by braving them;" but a new difficulty now arose. His funds were exhausted, and the person with whom he had credit refused to supply him. "This was a stroke," says Bruce, "that seemed to ensure our destruction, no other resource being now left. My servants began to murmur; some of them had known of my gold chain from the beginning, and these, in the common danger, imparted what they knew to the rest. In short, I resolved, though very unwillingly, not to sacrifice my own life and that of my servants, and the finishing my travels, now so far advanced, to childish vanity. I determined, therefore, to abandon my gold chain, the honourable recompense of a day full of fatigue and danger.