LUCIO, Rafael (loo'-the-o), Mexican physician, born in Jalapa, 2 September, 1819 ; died in the city of Mexico, 30 May, 1886. He received his primary education in his native city, and continued his studies at San Luis Potosi, but before they were completed his father died, and his mother became the wife of Dr. Manuel Salas, under whom LuciD began the study of medicine. He removed to the city of Mexico in 1839, was graduated at the School of medical science in 1842, and in 1855 and 1868 visited Europe. In 1843 the government appointed him director of the Hospital de San Lazaro, where he remained eighteen years, making a study of leprosy, and published, with Dr. Ignacio Alvarado, "La Elefaneiasis de los Griegos, 5 el Mal de San Lozaro " (Mexico, 1851). In 1845 he entered the School of medicine as assistant professor, and in 1847 he was appointed professor of medical jurisprudence and the practice of surgery. In 1851 he obtained the chair of practice of medicine, which he filled till a short time before his death. He was also appointed director of the school, but declined. In 1864 Dr. Lucio revived the Academia de medicina, and in 1869, 1880, and 1881 he was its president.