The cholera belt is especially fallacious at night. Unsupported as it then is by other clothing, it is at no other time so liable to slip down and leave unprotected the very parts that it is most important to keep covered. In the dark hours one wants a protection that is unlikely to be disturbed by forgetfulness, and is more likely to fall back into place than be cast off. This exigency is met by a folded blanket thrown across the trunk, within which are massed the delicate viscera essential to life; the ends of the folds lying on either side on the ground, and folded so that, without too thoroughly rousing oneself, one can spread the rug out a bit, above or below, should the chill of the morning become disagreeable to the chest or the lower limbs. Provided that the feet, chest and arms are left free, a blanket arranged in this way gives no feeling of oppression; and after a short period of habituation, its deprivation conveys a distinct sensation of discomfort. Lying across the body, with either end on the ground, it is unlikely to be disturbed by the uneasy movements of the body. The fact of the ends resting on the ground makes it difficult to shake it off, and it affords far better protection than any closely-fitting garment, is more comfortable, and less likely to cause prickly heat. Care in this matter, especially during the hours of sleep, is second only in importance to the protection of the head against the sun during the day. Never let the mildest dysentery, or even diarrhœa, continue unchecked. Taken early, no disease is more tractable, while if allowed to pass on to a chronic condition, no malady is more troublesome; while really severe chronic dysentery is practically incurable. Some knowledge of how to deal with such cases is therefore of special importance, as without embarking on the career of an explorer, any one may find himself a day or two’s distance from competent medical assistance in the countries with which we have to deal.