Cassius Longinus, Trebonius, and Marcus Lepidus had been sent to Spain after the battle of Pharsalia. They had quarrelled among themselves. They had driven the legions into mutiny. The authority of Rome had broken down as entirely as when Sertorius was defying the Senate; and Spain had become the receptacle of all the active disaffection which remained in the Empire. Thither had drifted the wreck of Scipio's African army. Thither had gathered the outlaws, pirates, and banditti of Italy and the Islands. Thither too had come flights of Numidians and Moors in hopes of plunder; and Pompey's sons and Labienus had collected an army as numerous as that which had been defeated at Thapsus, and composed of materials far more dangerous and desperate. There were thirteen legions of them in all, regularly formed, with eagles and standards; two which had deserted from Trebonius; one made out of Roman Spanish settlers, or old soldiers of Pompey's who had been dismissed at Lerida; four out of the remnants of the campaign in Africa; the rest a miscellaneous combination of the mutinous legions of Longinus and outlawed adventurers who knew that there was no forgiveness for them, and were ready to fight while they could stand. It was the last cast of the dice for the old party of the aristocracy. Appearances were thrown off. There were no more Catos, no more phantom Senates to lend to rebellion the pretended dignity of a national cause. The true barbarian was there in his natural colors. Very reluctantly Caesar found that he must himself grapple with this last convulsion. The sanguinary obstinacy which no longer proposed any object to itself save defiance and revenge, was converting a war which at first wore an aspect of a legitimate constitutional struggle, into a conflict with brigands. Clemency had ceased to be possible, and Caesar would have gladly left to others the execution in person of the sharp surgery which was now necessary. He was growing old: fifty-five this summer. His health was giving way. For fourteen years he had known no rest. That he could have endured so long such a strain on mind and body was due only to his extraordinary abstinence, to the simplicity of his habits, and the calmness of temperament which in the most anxious moments refused to be agitated. But the work was telling at last on his constitution, and he departed on his last campaign with confessed unwillingness. The future was clouded with uncertainty. A few more years of life might enable him to introduce into the shattered frame of the Commonwealth some durable elements. His death in the existing confusion might be as fatal as Alexander's. That some one person not liable to removal under the annual wave of electoral agitation must preside over the army and the administration, had been evident in lucid moments even to Cicero. To leave the prize to be contended for among the military chiefs was to bequeath a legacy of civil wars and probable