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sury of Pasco, specifies the number and weight
of the ingots. of silver smelted at,PasCO@ between

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It appears from this table that the produce of Pasco h_as almost never been below two hundred thousand marc_s_*', and that it amounted in 17941 and 1801 ?{飥Ty to the sum of’ three hundred thousand m___a_r_ks of silver. 1' .

The mines of Gualgayoe and Micuipampa, commonly called Chota, which 1 had occasion to examine very minutely in 1802, were only

discovered in 1771 by Don Rodriguez de
f "" i268 lb. troy. Trans. \

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34-4 POLITICAL ESSAY ON THE [noox xv.

Ocafio, a European‘ Spaniard. In the time of the Incas, the Peruvians wrought veins of silver in the Cerro de la Lin, ' near Cutervo, at .Chupiquiyacu, to the west of the small town of Micuipampa, where the thermometer descends almost every night to the freezing point, and which is seven hundred metres "‘ higher than the town of Quito. Immense wealth has been found even at the surface, both in the mountain-of Gualgayoc, which rises like a fortified castle in the midst of the plain, and at Fuentestiana, at Cormolache, and at la Pampa de Navar. In this last plain, for an extent of more than half a square league, wherever the turf has been removed, sulphuret of silver has been extracted, together with filaments of native silver adhering to the roots of gramineous plants. Frequently the silver is found in masses, (clavos y remolinos) as if smelted portions of this metal had been poured upon a very soft clay. The produce of the mines of Gualgayoc or Chota,is very unequal in proportion to the inconstancy of the veins which, at Fuentestiana and Cormolache, traverse alpine lime-stone; at Gualgayoc ‘and the Purgatorio, as well as at the Cerro de San Jose, horn-stone, called panizo. This horn-stone forms a subordinate bed in the calcareous rock, as has been clearly recognized on digging the pits of Choropampa, to the east

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clmr. XL] KINGDOM or .NEW SPAIN. 34-54

of the Purgatorio, near »the.Rayin de Chiguera. All the mines comprehended under the name of mines, of Gualgayoc, on the Partido de Chota, have furnished .to' the provincial treasury of

Truxillo, between the month of April 177-1<, and the month of October 1802 thesum of 1 912 3

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annually. ’r

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346 POLITICAL ESSAY ON THE [noon 1v

‘ Produce of the silver mines of Hualgayoc, Gua-
machuco, and Conchuco.

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This table, which was framed at my request in the ofiices of the intendancy, exhibits the quantity of silver given into the Cayana de Truwillo, as well as the duties of tenth and one and a half per cent. paid to the king. Of 11,791 ingots, nearly an eighth part, or 1450, came from the partidos of Gnamacliuco, and Conchuco. I could not procure the produce of the Cerro de Gualgayoc since the discovery of the mines. in 1771 to 1774. These years were undoubtedly the most abundant of all; but as the money was sent at that period to Lima, the archives of Truxillo could furnish no information relative to them. It is very reasonably believed, that under a more enlightened government, the Cerro de Gualgayoc would become another Potosi. In fact, its ores are richer than those of Potosi, and they are more constant in their produce than those of Huantajaya, and easier to work than those of Yauricocha. V

The mines of Huantajaya, surrounded with beds of rock salt, are particularly celebrated on account of the great masses of native silver which they contain in a decomposed gangue; and they fumish annually between 70 and 80 thousand mares of silver.’ The conchoidal muriate of silver, sulphuret of silver,

From 45,942 to 52,505 lb. troy. Trans.

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