Earls of. See BOYLE.

ORRICE. See IRIS, BOTANY Index.

ORTEGAL, cape, the most northern promontory of Spain, where there is also a castle of the same name. W. Long. 8. 29. N. Lat. 44. 0.

ORTELIUS, Abraham, a celebrated geographer, born at Antwerp, in 1527, was well skilled in the languages and the mathematics, and acquired such reputation by his skill in geography, that he was furnished the Ptolemy of his time, Julius Lippus, and most of the great men of the 16th century, were Ortelius's friends. He resided at Oxford in the reign of Edward VI, and came a second time into England in 1577. His Theatrum Orbis was the completest work of the kind that had ever been published, and gained him a reputation equal to his immense labour in compiling it. He also wrote several other excellent geographical works; the principal of which are his Theatrum, and his Synopsis Geographica. The world is likewise obliged to him for the Britonnia, which he persuaded Camden to undertake. He died at Antwerp in 1598.