city of Peru in South America, situated at the bottom of a mountain of that name, in which is the richest silver mine ever discovered. To give an idea of its richness, we shall mention its produce at different times. Exclusive of what was not registered, says Abbé Raynal, and was smuggled away, the fifth part belonging to the government from 1545 to 1564, amounted to 36,450,000 livres £ per annum. But this abundance of metals soon decreased. From 1564 to 1583, the annual fifth part amounted to no more than 15,187,489 livres four sols. From 1585 to 1624, it amounted to 12,149,994 livres 12 sols. From 1624 to 1633, to 6,074,997 livres six sols. From this last period, the produce of these mines hath so evidently decreased, that in 1763 the fifth part, belonging to the king, did not exceed 1,364,682 livres 12 sols. Situated in W. Long. 67. S. Lat. 22. See Peru.