Part 42 (1/2)
Sometimes these hurricanes are felt only on the north coast, at others on the south coast, although generally their influence extends throughout the island.
In 1825 a hurricane destroyed the towns of Patillas, Maunabo, Yabucoa, Humacao, Gurabo, and Caguas, causing much damage in other towns in the east, north, and center of the island. The island was also visited by a terrible hurricane in 1772.
Earthquakes.--Earthquakes are somewhat frequent, but not violent or of great consequence. The natives foretell them by noticing clouds settle near the ground for some time in the open places among the mountains. The water of the springs emits a sulphurous odor or leaves a strange taste in the mouth; birds gather in large flocks and fly about uttering shriller cries than usual; cattle bellow and horses neigh, etc. A few hours beforehand the air becomes calm and dimmed by vapors which arise from the ground, and a few moments before there is a slight breeze, followed at intervals of two or three minutes by a deep rumbling noise, accompanied by a sudden gust of wind, which are the forerunners of the vibration, the latter following immediately. These shocks are sometimes violent and are usually repeated, but owing to the special construction of the houses, they cause no damage.
Tides.--For seven hours the tide runs rapidly in a northwest direction, returning in the opposite direction with equal rapidity for five hours.
Orography.--The general relief of Porto Rico is much inferior in alt.i.tude to that of the rest of the Great Antilles, and even some of the Lesser Antilles have mountain summits which rival it.
A great chain of mountains divides the islands into two parts, northern and southern, which are called by the natives Banda del Norte and Banda del Sur. This chain sends out long ramifications toward the coasts, the interstices of which form beautiful and fertile valleys, composed in the high parts of white and red earths, on the spurs of black and weaker earths, and near the coasts of sand.
To the northwest and following a direction almost parallel with the northern coast, the Sierra of Lares extends from Aguadilla to the town of Lares, where it divides into two branches, one going north nearly to the coast, near Arecibo harbor, and the other extending to the spurs of the Sierra Grande de Banos; this latter starting from Point Guaniquilla, crosses the island in its entire length, its last third forming the Sierra of Cayey.
The whole island may be said to form a continuous network of sierras, hills, and heights. Of these the Sierra del Loquillo is distinguished for its great alt.i.tude (the highest peak being Yunque, in the northeast corner of the island and visible from the sea, a distance of 120 kilometers), as is also Laivonito Mountain, near the south coast.
The following are the four highest mountains, with their heights above the sea level: Yunque, in Luquillo, 1,290 yards; Guilarte, in Adjuntas, 1,180 yards; La Somanta, in Aybonito, 1,077 yards; Las Teras de Cerro Gordo, in San German, 860 yards. All are easily ascended on foot or horseback, and there are coffee plantations near all of them.
Approximate Height of Towns Above the Sea Level.--Aybonito, with its acclimatization station, 970 yards; Adjuntas, an almost exclusively Spanish town, 810 yards; Cayey, with a very agreeable climate, 750 yards; Lares, with a very agreeable climate, 510 yards; Utuado, with a very agreeable climate, 480 yards; Muricao, an exclusively Spanish town, 480 yards. To ascend to all these towns there are very good wagon roads. There are no fortifications of any kind in them, but they are surrounded on all sides by mountains.
Hydrography.--Few countries of the extent of Porto Rico are watered by so many streams. Seventeen rivers, taking their rise in the mountains, cross the valleys of the north coast and empty into the sea. Some of these are navigable 2 or 3 leagues from their mouths for schooners and small coasting vessels. Those of Manati, Loisa, Trabajo, and Arecibo are very deep and broad, and it is difficult to imagine how such large bodies of water can be collected in so short a course. Owing to the heavy surf which continually breaks on the north coast, these rivers have bars across their embouchures which do not allow large vessels to enter. The rivers of Bayamo and Rio Piedras flow into the harbor of the capital, and are also navigable for boats. At high water small brigs may enter the river of Arecibo with perfect safety and discharge their cargoes, notwithstanding the bar which crosses its mouth.
The rivers of the north coast have a decided advantage over those of the south coast, where the climate is drier and the rains less frequent. Nevertheless, the south, west, and east coasts are well supplied with water; and, although in some seasons it does not rain for ten, and sometimes twelve months on the south coast, the rivers are never entirely dried up.
From the Cabeza de San Juan, which is the northeast extremity of the island, to the cape of Mala Pascua, which lies to the southeast, 9 rivers fall into the sea.
From Cape Mala Pascua to Point Aguila, which forms the southwest angle of the island, 16 rivers discharge their waters on the south coast.
On the west coast 3 rivers, 5 rivulets, and several fresh-water lakes communicate with the sea. In the small extent of 330 leagues of area there are 46 rivers, besides a countless number of rivulets and branches of navigable water.
The rivers of the north coast are stocked with delicious fish, some of them large enough to weigh two quintals.
From the river of Arecibo to that of Manati, a distance of 5 leagues, a fresh-water lagoon, perfectly navigable for small vessels through the whole of its extent, runs parallel to the sea at about a mile from the sh.o.r.e.
In the fertile valley of Anasco, on the western coast, there is a ca.n.a.l formed by nature, deep and navigable. None of the rivers are of real military importance; for, though considering the shortness of their course, they attain quite a volume, still it is not sufficient for good-sized vessels.
The rivers emptying on the north coast are Loisa, Aguas Prietas, Arecibo, Bayamon, Camuy, Cedros, Grande, Guajaraca de la Tuna, Lesayas, Loquillo, Manati, Rio Piedras, Sabana, San Martin, Sibuco, Toa, and Vega.
Those emptying on the east coast are Candelero, Dagua, Fajardo, Guayanes, Majogua, and Maonabo.
On the south coast: Aquamanil, Caballon, Cana, Coamo, Descalabrado, Guanica, Guayama, Guayanilla, Jacagua, Manglar, Penuela, Ponce and Vigia.
On the west coast: Aguada, Boqueron, Cajas, Culebrina, Chico, Guanajibo, Mayaguez, and Rincon.
The limits of the Loisa river are: On the east, the sierra of Luquillo (situated near the northeast corner of the island); on the south, the sierra of Cayey, and on the west, ramifications of the latter. It rises in the northern slopes of the sierra of Cayey, and, running in a northwest direction for the first half of its course and turning to northeast in the second half, it arrives at Loisa, a port on the northern coast, where it discharges its waters into the Atlantic. During the first part of its course it is known by the name of Cayagua.
The Sabana river has, to the east and south, the western and southern limits of the preceding river, and on the west the Sierra Grande, or De Barros, which is situated in the center of the general divide, or watershed. It rises in the sierra of Cayey, and, with the name of Pinones river, it flows northwest, pa.s.sing through Aibonito, Toa Alta, Toa Baja, and Dorado, where it discharges into the Atlantic to the west of the preceding river.
The Manati river is bounded on the cast and south by the Sierra Grande and on the west by the Siales ridge. It rises in the Sierra Grande, and parallel with the preceding river, it flows through Siales and Manati, to the north of which latter town it empties into the Atlantic.
The Arecibo river is bounded on the east by the Siales mountain ridge, on the south by the western extremity of the Sierra Grande, and on the west by the Lares ridge. It rises in the general divide, near Adjuntas, and flows north through the town of Arecibo to the Atlantic, shortly before emptying into which it receives the Tanama river from the left, which proceeds from the Lares Mountains.