Note 18 — THE GREAT PESTILENCE. CHAPTER I. THE COMMENCEMENT OF THE EPIDEMIC.

Anglada, Étude sur les Maladies Éteintes (Paris, 1869), p. 416. The idea that this peculiar malady was altogether novel in character is confirmed by its specially malignant nature. According to a well-recognized law new epidemics are always most violent and fatal. The depopulation of the Fiji Islands by the measles is an instance of the way in which a comparatively mild disease may in its first attack upon a people prove terribly destructive. It is commonly thought that it has been the action of some new disease whereby the races which built the great prehistoric cities of Africa and America have been completely swept away.