Humboldt in the Cosmos truly observes—"What is most wonderful for us to comprehend is the undeception which takes place with respect to the kind of innate belief which men entertain of the repose and immovability of the terrestrial strata." And further on he says—"The earthquake appears to men as something omnipresent and unlimited. From the eruption of a crater, from a stream of lava running towards our dwellings, it appears possible to escape, but in an earthquake, whichever way flight is directed the fugitive believes himself on the brink of destruction!" No familiarity with the phenomenon can blunt this feeling. The inhabitant of Lima who, from childhood, has frequently witnessed these convulsions of nature, is roused from his sleep by the shock, and rushes from his apartment with the cry of "Misericordia!" The foreigner from the north of Europe, who knows nothing of earthquakes but by description, waits with impatience to feel the movement of the earth, and longs to hear with his own ears the subterraneous sounds which he has hitherto considered fabulous. With levity he treats the apprehension of a coming convulsion, and laughs at the fears of the natives. But as soon as his wish is gratified he is terror-stricken, and is involuntarily prompted to seek safety in flight.

In Lima, the painful impression produced by an earthquake is heightened by the universality of the exercise of the devotions (plegarias) on such a calamity. Immediately on the shock being felt, a signal is given from the cathedral, and the long-measured ten-minute tollings of all the church bells summon the inhabitants to prayers.

Taking a comprehensive view of the whole coast of Peru, we perceive that Lima lies in one of those oases which break the continuity of the extensive sand-flats. These valleys present themselves wherever a river, after a short course from the Cordilleras, falls into the sea; they are always fan-shaped widenings of the mountain ravines. The valley of Lima lies in the widest extension of the Quebrada of Mutucamas. This narrow gorge, which has its main direction from E.N.E. to W.S.W., widens at Cocachacra, and extends into San Pedro Mama, where the Quebrada of San Geronimo unites with it. It then runs down to the coast, extending more and more in width, and is intersected by the Rimac.[39] This river rises in two branches, the largest of which has its source in some small lagunes, in the upper part of Antarangra, on a height 15,600 feet above the level of the sea. The second and shorter branch takes its source from a small lake in the heights of Carampoma, flows through the valley of San Geronimo, and near San Pedro unites with the Rimac. The most considerable streams of the south-eastern confluence are those which rise in the heights of Carhuapampa, and near Tambo de Viso, flow into the main stream. During winter the Rimac is very inconsiderable, but when the rainy season sets in it swells greatly, and in the upper regions, particularly between Surco and Cocachacra, causes great devastations. In the lower part where the bed becomes broad and the banks are not much built on, no considerable damage occurs.

Several small conduits are brought from the Rimac, some for giving moisture to fields, and others for filling the street trenches of Lima. The water for supplying the fountains of the Capital does not, however, come from the river, but from two springs situated 114 league from Lima in a thicket near an old Indian settlement, called Santa Rosa, in the valley of Surco. They are inclosed within a building called the Puello, or Atarrea, whence the waters are conveyed by a subterraneous trench to the Reservoir (Caja de Santa Tomas), from which it is distributed by pipes to 112 public and private fountains. During the insurrection of the Indians in 1781, which was instigated by the unfortunate Cacique Don José Gabriel Tupac Amaru, one of the sworn determinations of the participators in that very extensive conspiracy was to drive the Spaniards out of Lima by artifice or force. Among the numerous plans for accomplishing that object, I will mention two which have reference to the water of Lima. One scheme was to poison the whole of the inhabitants. For this purpose a rich Cacique of the vale of Huarochirin went to an apothecary near the bridge, and asked for two hundred weight of corrosive sublimate, saying that he would pay well for it. The apothecary had not entire confidence in the Indian, but he did not think it right to forego the opportunity of making a very profitable sale; so, instead of the sublimate, he made up the same quantity of alum for the Cacique and received the price he demanded. Next morning all the water in Lima was unfit for use. On examination it was found that the enclosure of the Atarrea was broken down, and the source saturated with alum. The offender remained undiscovered.

The second plan was formed with more circumspection. The conspirators resolved on a certain day to send into the city a number of Indians, who were to conceal themselves on the roofs of the shops (Pulperias), in which quantities of firewood were kept for sale. The moment the cathedral struck the hour of midnight, the concealed Indians were to set fire to the wood. Another division of Indians was immediately to dam up the river at the convent of Santa Clara, and thereby lay the streets under water. During the unavoidable confusion, which must have taken place, the main body of the Indians was to enter the town and massacre all the whites. This well-combined plan was by mere accident discovered, when it was of course frustrated.

The fertility of the soil round Lima is very great when irrigation is practicable. Where this cannot be accomplished, the earth withholds even the most scanty vegetation. The riego, or irrigation, is thus effected. On certain days the water conduits are closed, and the fields are laid under water. When there is a deficient supply of water, the trenches, or conduits, are not opened till the following day. When, however, the supply of water is abundant, the riego takes place early every morning.

As the same identical plants are cultivated along almost the whole coast, I will here notice them, to save the necessity of returning to them hereafter.

Cotton is cultivated only in a few plantations in the immediate vicinity of Lima; but it abounds more in the northern districts, particularly in the department de la Libertad, in the coast province Piura, in Lambayeque, and in Truxillo. In the southern province, Yca, a considerable quantity is also reared for exportation. The brown cotton was chiefly cultivated in the time of the Incas. Most of the bodies found in the ancient graves on the coast are enveloped in this kind of cotton.

The Sugar Cane is cultivated with success in all plantations where there is sufficient moisture of soil; and of all the agricultural produce of the country, yields the greatest profit. The sugar estates lie on the sea-coast, or along the banks of rivers. The vertical limit of the sugar cane growth is on the western declivity of the Cordilleras, about 4500 feet above the level of the sea, at which height I saw fields covered with it. The largest plantations, however, do not rise above 1200 feet above the level of the sea; while those of the same extent on the eastern declivity are at the height of 6000 feet. Within the last forty years the introduction of the Otaheitan cane has greatly improved the Peruvian plantations in quality, and has more especially increased the quantity of their produce; for the Otaheitan canes are found to yield proportionally one third more than the West India canes, which were previously cultivated.

The preparation of the sugar is, as yet, conducted in a very rude and laborious manner. In most of the plantations the cane is passed through wooden presses with brass rollers. These machines are called trapiches or ingenios. They are kept in motion by oxen or mules. In some large estates water power is employed, and in San Pedro de Lurin a steam-engine has been put up, which certainly does the work quickly; but it often has to stand for a long time idle. A part of the sugar cane juice is used for making the liquor called guarapo, or distilled for making rum; for since the independence, the law which strictly prohibited the distillation of spirituous liquors in plantations has been repealed. The remainder is boiled down into a syrup, or further simmered until it thickens into cakes, called chancacas, or brown sugar. After a careful purification it is made into the white cakes called alfajores, or prepared as white sugar. In fineness of grain and purity of color it is inferior to the Havannah sugar, which, however, it exceeds in sweetness. The regular weight of the sugarloaf is two arobas; only for convenience of transport into the mountainous districts their weight is sometimes diminished. The consumption of sugar in the country is great and its export is considerable, but it goes only to Chile.