Page:Decline and Fall of the Roman Empire vol 4 (1897).djvu/459

Rh union and fermentation of iron and sulphur. But their times and effects appear to lie beyond the reach of human curiosity, and the philosopher will discreetly abstain from the prediction of earthquakes, till he has counted the drops of water that silently filtrate on the inflammable mineral, and measured the caverns which increase by resistance the explosion of the imprisoned air. Without assigning the cause, history will distinguish the periods in which these calamitous events have been rare or frequent, and will observe that this fever of the earth raged with uncommon violence during the reign of Justinian. Each year is marked by the repetition of earthquakes, of such duration that Constantinople has been shaken above forty days; of such extent that the shock has been communicated to the whole surface of the globe, or at least of the Roman empire. An impulsive or vibratory motion was felt, enormous chasms were opened, huge and heavy bodies were discharged into the air, the sea alternately advanced and retreated beyond its ordinary bounds, and a mountain was torn from Libanus, and cast into the waves, where it protected, as a mole, the new harbour of Botrys in Phœnicia. The stroke that agitates an ant-hill may crush the insect myriads in the dust; yet truth must extort a confession that man has industriously laboured for his own destruction. The institution of great cities, which include a nation within the limits of a wall, almost realizes the wish of Caligula that the Roman people had but one neck. Two hundred and fifty thousand persons are said to have perished in the earthquake of Antioch, whose domestic multitudes were swelled by the conflux of strangers to the festival of the Ascension. The loss of Berytus was of smaller account,