=Dir´ce.= A woman whom Lycus, king of Thebes, married after he had divorced Antiope. Amphion and Zethus, sons of Antiope, for cruelties she practiced on Antiope, tied Dirce to the tail of a wild bull, by which she was dragged over rocks and precipices till the gods pitied her and changed her into a fountain. =Discor´dia.= A malevolent deity, daughter of Nox, and sister to Nemesis, the Parcæ, and Death. She was driven from heaven by Jupiter because she sowed dissensions amongst the gods. At the nuptials of Peleus and Thetis she threw an apple amongst the gods, inscribed with the words, _Detur pulchriori_, which was the primary cause of the ruin of Troy, and of infinite misfortunes to the Greeks. =Dolabel´la, P. Corn.= A Roman who married the daughter of Cicero. During the civil wars he warmly espoused the cause of Julius Cæsar, whom he accompanied at the famous battles of Pharsalia and Munda. =Domitia´nus, Ti´tus Fla´vius=, son of Vespasian and Flavia Domitilla, made himself emperer of Rome on the death of his brother Titus, whom, according to some accounts, he destroyed by poison. The beginning of his reign promised hopefully, but Domitian became cruel, and gave way to vicious indulgences. In the latter part of his reign he became suspicious and remorseful. He was assassinated A.D. 96, in the forty-fifth year of his age. =Dra´co.= A celebrated lawgiver of Athens, who made a code of laws, B.C. 623, which, on account of their severity, were said to be written in letters of blood. Hence the term "Draconic," applied to any punishment of exceptional severity. =Dru´sus.= A son of Tiberius and Vipsania, who became famous for his courage displayed in Illyricum and Pannonia. =Dru´sus, M. Liv´ius.= A celebrated Roman, who renewed the proposals bearing on the Agrarian laws, which had proved fatal to the Gracchi. =Dru´sus, Ne´ro Clau´dius.= A son of Tiberius Nero and Livia. He distinguished himself in the wars in Germany and Gaul, and was honored with a triumph. There were other Romans of the same name, but of smaller distinction. =Dry´ades.= Nymphs that presided over the woods. Oblations of milk, oil, and honey were offered to them. Sometimes the votaries of the Dryads sacrificed a goat to them. =Duum´viri.= Two patricians at Rome, first appointed by Tarquin to keep the Sibylline books, which were supposed to contain the fate of the Roman empire. =Ech´o.= A daughter of the Air and Tellus, who was one of Juno's attendants. She was deprived of speech by Juno, but was allowed to reply to questions put to her. =Ege´ria.= A nymph of Aricia in Italy, where Diana was particularly worshiped. Egeria was courted by Numa, and, according to Ovid, became his wife. Ovid says that she was disconsolate at the death of Numa, and that she wept so violently that Diana changed her into a fountain.