According to the nature of these gold-mines, and the comparative richness of the veins, every caxon, or chest of fifty quintals, yields four, five, or six ounces of gold.  When it only yields two ounces, the miner does not cover his charges, which often happens; but he sometimes receives ample amends, when he meets with good veins; and the gold-mines are those which produce metals the most unequally.  In following a vein, it frequently widens, then becomes narrower, and then seems to disappear, all within a small space of ground; and this sport of nature makes the miners live in continual hopes of finding what they call a purse, being the expanded end of a vein, which is sometimes so rich as to make a man’s fortune at once; yet this same inequality sometimes ruins them, which is the reason that it is more rare to see a gold-miner rich than a silver-miner, or even one in any other metal, although there be less expence in extracting gold from the mineral than any other metal.  For this reason also the gold-miners have the particular privilege that they cannot be sued to execution in civil actions.  Gold only pays a twentieth part to the king, which duty is called Covo, from the name of a private individual at whose instance the duty was thus reduced, gold having formerly paid a fifth, as silver still does.

On the descent of this mountain of Tiltil, there runs, during the rainy season, a brisk stream of water, which passes through among the gold-ore, and washes away abundance of that rich metal, as it ripens[6] and breaks from its bed.  On this account, this stream is accounted one of the richest lavaderos in all Chili for four months of every year; and well it may, as there are sometimes found in it pellets of gold of an ounce weight.  At Palma, about four leagues from Valparaiso, there is another rich lavadero; and every where throughout the country, the fall of a brook or rivulet is accompanied by more or less of these golden showers, the richest of which fall into the laps of the jesuits, who farm or purchase abundance of mines and lavaderos, which are wrought for their benefit by their servants.  The soil in the neighbourhood of Valparaiso is exceedingly rich and fertile, so that forty ships go from thence yearly to Calao, laden with corn; yet that commodity still remains so cheap at this place, where money is so abundant, that an English bushel of wheat may be bought for less than three shillings.  It would be still cheaper, could all the country be cultivated; but as it has constant dry weather for eight months endurance, cultivation is only possible where they have brooks or little rills in the vales coming from the mountains, which can be applied for irrigating or watering the cultivated land.

[Footnote 6:  That is, as the matrix or rock in which it is contained, moulders and decays by the influences of the weather and of this stream; for the notion of ores ripening is a mere dream or fancy.—­E.]