There are three principal love stories in Persia which, from the earliest times, have been the themes of every poet. Scarcely one of the great masters of Persian literature but has adopted and added celebrity to these beautiful and interesting legends, which can never be too often repeated to an Oriental ear. They are, the "History of Khosru and Shireen," the "Loves of Yussuf and Zuleika," and the "Misfortunes of Mejnoun and Leila." So powerful is the charm attached to these stories, that it appears to have been considered almost the imperative duty of all the poets to compose a new version of the old, familiar, and beloved traditions. Even down to a modern date, the Persians have not deserted their favorites, and these celebrated themes of verse reappear, from time to time, under new auspices. Each of these poems is expressive of a peculiar character. That of Khosru and Shireen may be considered exclusively the Persian romance; that of Mejnoun the Arabian; and that of Yussuf and Zuleika the sacred. The first presents a picture of happy love and female excellence in Shireen; Mejnoun is a representation of unfortunate love carried to madness; the third romance contains the ideal of perfection in Yussuf (Joseph) and the most passionate and imprudent love in Zuleika (the wife of Potiphar), and exhibits in strong relief the power of love and beauty, the mastery of mind, the weakness of overwhelming passion, and the victorious spirit of holiness. 8. PERSIAN POETS.--The first of Persian poets, the Homer of his country, is Abul Kasim Mansur, called Ferdusi or "Paradise," from the exquisite beauty of his compositions. He flourished in the reign of the Shah Mahmud (940-1020 A.D.). Mahmud commissioned him to write in his faultless verse a history of the monarchs of Persia, promising that for every thousand couplets he should receive a thousand pieces of gold. For thirty years he studied and labored on his epic poem, "the Shah Namah," or Book of Kings, and when it was completed he sent a copy of it, exquisitely written, to the sultan, who received it coldly, and treated the work of the aged poet with contempt. Disappointed at the ingratitude of the Shah, Ferdusi wrote some satirical lines, which soon reached the ear of Mahmud, who, piqued and offended at the freedom of the poet, ordered sixty thousand small pieces of money to be sent to him, instead of the gold which he had promised. Ferdusi was in the public bath when the money was given to him, and his rage and amazement exceeded all bounds when he found himself thus insulted. He distributed the paltry sum among the attendants of the bath and the slaves who brought it.