{ { Fever mostly with sweats and { Simple Malignant Fever { other signs of malignity, but { { without buboes, carbuncles, petechiae { { or miliary rash. Synochus { { { Fever with petechiae, purple { Pestilential Fever { spots, miliaria, morbillous rash { { on the chest. { { Plague { With buboes, carbuncles and { { black spots.
The order in this Table was also the order in time: the fever of 1661, which Willis calls malignant, remained as the constitution of the years following until the end of 1664; then began the pestilential, which passed definitely in the spring of 1665 into the plague proper. Willis, Sydenham and Morton, differing as they did on many points of theory and treatment, all alike taught the scale of malignity in fevers and plague, and all used the language of "constitutions." The Great Plague of 1665 was, in their view, the climax of a succession of febrile constitutions of the air, being attended by much pestilential fever and followed by a fever which Morton places in the milder class of [Greek: synechês].
The epidemic Constitutions following the Great Plague.
During the ten or twelve years following the Great Plague of London, the epidemic maladies which Sydenham dwelt most upon as the reigning types will appear on close scrutiny to have been on the whole proper to the earlier years of life. This cannot be shown in the simple way of figures; for the ages at death from the several maladies, although they were in the books of the Parish Clerks, were not published.