[Sidenote: Roman slavery.] Incidental mention has been made of the condition of the slaves in Italy. It was the sight of the slave-gangs which partly at least roused Tiberius Gracchus to action, and some remarks on Roman slavery follow naturally an enquiry into the nature of the public land. The most terrible characteristic of slavery is that it blights not only the unhappy slaves themselves, but their owners and the land where they live. It is an absolutely unmitigated evil. As Roman conquests multiplied and luxury increased, enormous fortunes became more common, and the demand for slaves increased also. Ten thousand are said to have been landed and sold at Delos in one day. What proportion the slave population of Italy bore to the free at the time of the Gracchi we cannot say. It has been placed as low as 4 per cent., but the probability is that it was far greater. [Sidenote: Slave labour universally employed.] In trades, mining, grazing, levying of revenue, and every field of speculation, slave-labour was universally employed. If it is certain that even unenfranchised Italians, however poor, could be made to serve in the Roman army, it was a proprietor's direct interest from that point of view to employ slaves, of whose services he could not be deprived. [Sidenote: Whence the slaves came. Their treatment.] A vast impetus had been given to the slave-trade at the time of the conquest of Macedonia, about thirty-five years before our period. The great slave-producing countries were those bordering on the Mediterranean--Africa, Asia, Spain, &c. An organized system of man-hunting supplied the Roman markets, and slave-dealers were part of the ordinary retinue of a Roman army. When a batch of slaves reached its destination they were kept in a pen till bought. Those bought for domestic service would no doubt be best off, and the cunning, mischievous rogue, the ally of the young against the old master of whom we read in Roman comedy, if he does not come up to our ideal of what a man should be, does not seem to have been physically very wretched. Even here, however, we see how degraded a thing a slave was, and the frequent threats of torture prove how utterly he was at the mercy of a cruel master's caprice. We know, too, that when a master was arraigned on a criminal charge, the first thing done to prove his guilt was to torture his slaves. But just as in America the popular figure of the oily, lazy, jocular negro, brimming over with grotesque good-humour and screening himself in the weakness of an indulgent master, merely served to brighten a picture of which the horrible plantation system was the dark background; so at Rome no instances of individual indulgence were a set-off against the monstrous barbarities which in the end brought about their own punishment, and the ruin of the Republic. [Sidenote: Dread inspired by the prospect of Roman slavery.] Frequent stories attest the horrors of Roman slavery felt by conquered nations.