But it is the nervous fever that chiefly engrosses attention both in Scotland and in England. In 1735, Dr Gilchrist, of Dumfries, made it the subject of an essay, returning to the subject a few years after[124]. “As _our_ fever,” he says, “seems to be peculiar to this age, it is not a little surprising that much more has not been said upon it.” He is not sure whether its frequency of late years may not be owing to the manner of living (it was the time of the great drink-craze, which Huxham also connects with the reigning maladies) and to a long course of warm, rainy seasons; the winters for some years had been warm and open, and the summers and harvests rainy. It was only the poorer sort and those a degree above them who were subject to this fever; he knew but few instances of it amongst those who lived well, and none amongst wine-drinkers. It was in some insidious in its approach; those who seemed to be in no danger the first days for the most part died. In others the onset was violent, with nausea, heat, thirst and delirium. Among the symptoms were looseness, pains in the belly, local sweating, tickling cough, leaping of the tendons. Sometimes they were in continual cold clammy sweats; at other times profuse sweats ran from them, as if water were sprinkled upon them, the skin feeling death cold. At Edinburgh, from October, 1735, to February, 1736, the fever became very common, and was often a relapsing fever. “The sick had generally a low pulse on the first two or three days, with great anxiety and uneasiness, and thin, crude urine. Delirium began about the fourth day, and continued until the fever went off on the seventh day. Sometimes the disease was lengthened to the fourteenth day. The approach of the delirium could always be foretold by the urine becoming more limpid, and without sediment.... A large plentiful sweat was the crisis in some. Others were exposed to relapses, which were very frequent, and rather more dangerous than the former fever[125].” These evidences, beginning with Strother’s for London in 1728 and extending to the Edinburgh record of 1735, must suffice to identify true relapsing fever. In the chapter on Irish fevers we shall find clear evidence of relapsing fever in Dublin in 1739, before the great famine had begun.