The war ended with the Treaty of Limerick, in 1691. The Seven Ill Years followed,--ill years to Scotland, in a measure to England, and almost certainly to Ireland also; but it does not appear that the end of the 17th century was a time of special sickness and famine to the Irish, and it may be inferred from the fact of Scots migrating to Ireland during the ill years that the distress was not so sharp there. The epidemiology of Ireland is, indeed, a blank until we come to the writings of Dr Rogers, of Cork, in some respects the best epidemiologist of his time, which cover the period from 1708 to 1734. His account of the dysentery and typhus of the chief city of Munster in the beginning of the 18th century will show that the old dietetic errors of the Irish, noted in medieval times, had hardly changed in the course of centuries. A generation of Fevers in Cork. Rogers is clear that typhus fever was never extinct, while the three several times when it “made its appearance amongst us in a very signal manner,” are the same as its seasons in England, namely 1708-10, 1718-21 and 1728-30[428]. His experience relates only to the city of Cork, and, so far as his clinical histories go, only to the well-to-do classes therein; and although those seasons were years of scarcity and distress all over Ireland, yet Rogers does not seem to associate insufficient food with the fever, and never mentions scarcity. The fevers were in the winter, for the most part, and were usually accompanied by epidemic smallpox of a bad type, which in 1708 “swept away multitudes.” Nothing is said of dysentery for the earliest of the three fever-periods; but for 1718 and following years we read that “dysentery of a very malignant sort, frequently producing mortification in the bowels,” prevailed during the same space; and that the winters of the third fever-period, namely, those of 1728, 1729 and 1730 were “infamous for bloody fluxes of the worst kind.” It is clear that the fever spread to the richer classes in Cork, for his five clinical histories are all from those classes. The following is his general account of the symptoms: