Kitabı oku: «Narrative of the surveying voyages of His Majesty's ships Adventure and Beagle, between the years 1826 and 1836», sayfa 3
CHAPTER III
Prepare the Beagle, and our decked boat (the Hope) for surveying the Strait – Beagle sails westward, and the Hope towards the south-east – Sarmiento's voyage – and description of the colony formed by him at Port Famine – Steamer-duck – Large trees – Parroquets – Mount Tarn – Barometrical observations – Geological character – Report of the Hope's cruize.
In almost every account published of the Strait of Magalhaens, so much notice has been taken of Port Famine, that I had long considered it a suitable place for our purposes; and upon examination I found it offered so many advantages, that I did not hesitate to make it our head-quarters. As soon, therefore, as the ship was moored, tents were pitched, our decked-boat was hoisted out and hauled on shore, to be coppered and equipped for the survey; – and Captain Stokes received orders to prepare the Beagle for examining the western part of the Strait; previous to which she required to be partially refitted, and supplied with fuel and water.
For several days after our arrival, we had much rain and strong south-westerly wind, with thick clouds, which concealed the high land to the southward; allowing us only now and then a partial glimpse. One evening (11th) the air was unusually clear, and many of the mountains in that direction were distinctly defined. We had assembled to take leave of our friends in the Beagle, and were watching the gradual appearance of snow-capped mountains which had previously been concealed, when, bursting upon our view, as if by magic, a lofty mountain appeared towering among them; whose snowy mantle, strongly contrasted with the dark and threatening aspect of the sky, much enhanced the grandeur of the scene.
This mountain was the "Snowy Volcano" (Volcan Nevado) of Sarmiento, with whose striking appearance that celebrated navigator seems to have been particularly impressed, so minute and excellent is his description. It is also mentioned in the account of Cordova's voyage.19 The peculiar shape of its summit as seen from the north would suggest the probability of its being a volcano, but we never observed any indication of its activity. Its volcanic form is perhaps accidental, for, seen from the westward, its summit no longer resembles a crater. From the geological character of the surrounding rocks its formation would seem to be of slate. It is in a range of mountains rising generally two or three thousand feet above the sea; but at the N.E. end of the range are some, at least four thousand feet high. The height of the "Snowy Volcano," or as we have called it, Mount Sarmiento,20 was found, by trigonometrical measurement, to be six thousand eight hundred feet21 above the level of the sea. It is the highest land that I have seen in Tierra del Fuego; and to us, indeed, it was an object of considerable interest, because its appearance and disappearance were seldom failing weather guides. In our Meteorological Diary, a column was ruled for the insertion of its appearances.22
This clear state of the atmosphere was followed by a heavy fall of rain, with northerly and easterly winds, which did not, however, last long.
In the vicinity of our tents erected on the low land, on the S.W. side of the bay, were several ponds of water, perfectly fit for immediate use; but, perhaps, too much impregnated with vegetable matter to keep good for any length of time. Captain Stokes, therefore, filled his tanks from the river; but as that water did not keep well, it was probably taken into the boat too near the sea. This, however, was unavoidable, except by risking the boats among a great number of sunken trees in the bed of the river.
The Beagle sailed on the 15th, to survey the western entrance of the Strait, with orders to return to Port Famine by the end of March.
Our decked boat, the Hope, being ready, the command of her was given to Mr. Wickham, who was in every way qualified for the trust. We were, however, much mortified by finding that she leaked so considerably as to oblige us to unload, and again haul her on shore. When ready for sea, she sailed under the direction of my assistant-surveyor, Mr. Graves, to examine the St. Sebastian channel and the deep opening to the S.E. of Cape Valentyn. Her crew consisted of seven men, besides Mr. Wickham, and Mr. Rowlett, the purser.
Having despatched the Beagle and the Hope, I was at leisure to carry on the survey of the coast in the neighbourhood of Port Famine, and to make a plan of the port itself. The Transit, and Altitude circle, were set up; but from the very unfavourable state of the weather, and the interference of other occupations, I was only enabled to procure a series of zenith distances of the sun, and stars, for the latitude.
Port Famine, a name well known to all who have interested themselves about the Strait of Magalhaens, was selected by Sarmiento as the most convenient place for the site of an establishment formed, at his suggestion, by Philip II. King of Spain.
The voyage of Sir Francis Drake through the Strait into the Pacific, and his successes against the Spanish colonies and trade on the western side of the continent of America, induced the Viceroy of Lima to send an Expedition to pursue the "Corsair," with orders to fight and take him, dead or alive.23 This Expedition, commanded by Pedro Sarmiento de Gamboa, who had already been engaged twice with Drake, consisted of two ships, containing in all two hundred armed men, sailors and soldiers; a force which was considered sufficient to ensure the capture.24
The Strait of Magalhaens being the most likely place to meet with Drake, Sarmiento was ordered to proceed through it, and take the opportunity of exploring its coasts.
All this he performed in a manner highly creditable, as well for the excellent description handed down in his unpretending journal, as for the enterprising zeal, and steady perseverance, shown among difficulties of no trifling nature. To his accounts of various places there will be frequent occasion to refer. Our object, at present, is to give a short account of the Colony.
Sarmiento sailed from Peru (1583), and entered the Strait from the Pacific. After experiencing many serious difficulties, and escaping imminent dangers, in the western part of the Strait, where the climate is so rigorous and the country so desolate, it was not surprising that he should become enraptured with the verdant, and picturesque appearance of the shores to the eastward of Cape Froward, and with the open country in the neighbourhood, and to the northward of Cape Virgins.25 After much opposition from the Duke of Alva26 and other powerful people, he succeeded in convincing the King of the expediency of fortifying the shores of the First Narrow, and forming several establishments within the Strait, to prevent the passage of strange ships, to the prejudice of the King's colonies in Chile and Peru; for at that time the passage round Cape Horn was not known. Accordingly, an Expedition was prepared, consisting of twenty-three vessels, under the joint command of Diego Florez de Valdez and Sarmiento; the former being appointed Captain-general of the fleet, and of the coast of Brazil; and the latter, Captain-general of the Strait of Magalhaens, and Governor of all the Establishments that should be formed within it.
Of the twenty-three ships which sailed from Spain, five only reached the entrance of the Strait; and these, after experiencing many difficulties from bad weather and foul winds, returned to Rio de Janeiro to refit, where Sarmiento met four vessels which had been sent from Spain to his succour. His colleague and General in chief, Florez, who had deserted the Expedition, did all in his power to impede Sarmiento, to the latest moment of his stay at the Brazils. At last, however, five ships, commanded by Ribera, and manned by five hundred and thirty men,27 sailed; and, without encountering further loss or detention, arrived off the Strait in December (1584), and soon after reached an anchorage, between the First and Second Narrows.
Ribera would go no further; but landed about three hundred men, under Sarmiento. A city was marked out, and named Jesus,28 in a valley well provided with water. The ships were blown away to sea, leaving the colonists very destitute; fortunately, however, they were enabled to return, but were four times, afterwards, obliged to put to sea, from stress of weather. On the last return, one of the ships, La Trinidad, was run on shore. The ardour of Ribera being damped by repeated misfortunes, he returned to Spain, without the knowledge or consent of Sarmiento, leaving, for the use of the colony, only one ship, the Maria.
While unloading the Trinidad, the Spaniards were attacked by Indians, whom they dispersed.
Sarmiento, after making the necessary arrangements at Jesus, set out by land with one hundred men, to go to Point St. Anna,29 the ship Maria being ordered to follow. On the journey, the sufferings of the party were very great, as well from the fatiguing nature of the march, as from their being harassed by the natives, with whom they had an engagement, in which one was killed, and ten men were wounded. A mutiny among his people then broke out, which was quelled by assistance from the ship. At last they reached their destination, and founded, with the usual solemnities, the city of King Philip (or San Felipe).
At the latter end of March, while preparing habitations, the winter set in so suddenly, that for fifteen days it did not cease to snow. Sarmiento, then, after quelling a mutiny which had broken out afresh among the soldiers, embarked with thirty men to visit the first encampment at Jesus, and to superintend the erection of forts in the Narrow; but upon reaching the anchorage, a gale of wind forced him to sea, and, lasting twenty days, obliged him (with his people blinded and frost-bitten) to bear up for Rio de Janeiro.
Here his ship was stranded; upon which he chartered a vessel to convey flour to the Strait, and went himself to Pernambuco, to procure large boats for carrying supplies to his colony, and assisting in the recovery of his stranded ship; she had, however, drifted off, and sunk near Bahia; and all his boats were destroyed. Still Sarmiento persevered in his zealous efforts to succour his friends in the Strait; and succeeded in procuring a vessel of fifty or sixty tons, which, loaded with arms and whatever he considered useful, sailed, and reached Rio de Janeiro a month after the departure of the first vessel (January 1585). He followed, but in the latitude of 39° met with a furious gale, which drove him back to Rio de Janeiro, where the vessel that had preceded him had returned in distress.
Disappointed in his attempts to carry succour to the colony, he determined to go to Spain; but on his voyage thither, to complete the catalogue of his misfortunes, his ship was captured by three English vessels, and taken to England, after which the ill-fated colony in the Strait was neglected, if not entirely forgotten.
Two months after Sarmiento's departure from the Strait of Magalhaens, in the month of August, the middle of the winter of that region, the party belonging to the first establishment at Jesus set off by land, and joined that at San Felipe, with the unwelcome tidings of their deserted state. But as the provisions at San Felipe were insufficient to support all the people, Andres de Viedma, who, after Sarmiento's departure, had assumed the command, detached two hundred soldiers, under the command of Juan Iniguez, back to Jesus, for the purpose of communicating with any ship that might make her appearance, and awaiting the expected return of Sarmiento; but the winter and following summer passed by without any relief.
In this unhappy state, the colonists were obliged to think only of providing for their safety, and built two boats; in which fifty people embarked, besides Viedma, Suarez, a Franciscan friar named Antonio, and five Spanish women. They had not proceeded farther than Point Santa Brigida,30) See Sarmiento's Voyage, p. 220.
31 himself, who, on hearing the particulars of their story, sent the other two soldiers to Viedma, offering to take him and the residue of his people on board. Cavendish returned to his ship; but, without further delay, sailed on to the Isla dos Patos (Santa Magdalena Island), where he leisurely salted down six casks of penguins; and then proceeded to San Felipe, for wood and water; he remained there four days (during which time he destroyed the houses of the Spaniards, and embarked six guns); and thence continued his voyage. The person saved by Cavendish, whose name was Tomé Hernandez, afterwards escaped from him at Quintero, near Valparaiso; and, proceeding to Peru, gave an account of the fate of this cruelly neglected colony.
This was the first, and perhaps will be the last, attempt made to occupy a country, offering no encouragement for a human being; a region, where the soil is swampy, cold, and unfit for cultivation, and whose climate is thoroughly cheerless.
The name, San Felipe, ceased with the colony; for Cavendish called it Port Famine, in allusion to the fate of the colonists, all of whom, except the man he took away, and one saved two years afterwards (in 1589), by Andrew Mericke,32) until our coming thither." Burney, ii. p. 96. This man died on the voyage to Europe. Id. p. 97.
33 beyond Cape San Isidro, we found many wigwams. They were then novelties to us, and we were ignorant of their being such certain indications of very sheltered places, as subsequent experience has shown them to be. We often used them, after they had been well cleaned out: a boat's sail, thrown over the hemispherical roof, was a sufficient protection from rain; – and from wind they are always well defended by their situation. Here we saw, for the first time, that most remarkable bird the Steamer-duck. Before steam-boats were in general use, this bird was denominated, from its swiftness in skimming over the surface of the water, the 'race-horse,' a name which occurs frequently in Cook's, Byron's, and other voyages. It is a gigantic duck, the largest I have met with. It has the lobated hind-toe, legs placed far backwards, and other characteristics of the oceanic ducks.34 The principal peculiarity of this bird is, the shortness and remarkably small size of the wings, which, not having sufficient power to raise the body, serve only to propel it along, rather than through the water, and are used like the paddles of a steam-vessel. Aided by these and its strong, broad-webbed feet, it moves with astonishing velocity. It would not be an exaggeration to state its speed at from twelve to fifteen miles an hour. The peculiar form of the wing, and the short rigid feathers which cover it, together with the power this bird possesses of remaining a considerable length of time under water, constitute it a striking link between the genera Anas and Aptenodytes. It has been noticed by many former navigators. The largest we found measured forty inches, from the extremity of the bill, to that of the tail, and weighed thirteen pounds; but Captain Cook mentions, in his second voyage, that the weight of one was twenty-nine pounds.35 It is very difficult to kill them, on account of their wariness and thick coat of feathers, which is impenetrable by any thing smaller than swan shot. The flavour of their flesh is so strong and fishy, that at first we killed them solely for specimens. Five or six months, however, on salt provisions, taught many to think such food palatable, and the seamen never lost an opportunity of eating them. I have preferred these ducks to salt-beef, but more as a preventive against scurvy, than from liking their taste.
I am averse to altering names, particularly in natural history, without very good reason, but in this case I do think the name of 'steamer' much more appropriate, and descriptive of the swift paddling motion of these birds, than that of 'race-horse.' I believe, too, the name of 'steamer' is now generally given to it by those who have visited these regions.
Many shells36 were taken from the bottom by means of a fizgig which Mr. Tarn found in one of the wigwams: it was a rough pole, eight or ten feet long, split crosswise at one end, and opened so as to form four prongs, kept apart by two small pieces of wood. Although rudely made, it was excellently adapted for a shell-gatherer, and is used by the Indians for collecting sea-eggs, which are found in the Strait of very large size, and are doubtless, to them, a great delicacy.
During our excursion we ascertained the best place to ascend the snowy mountain, since named 'Tarn;' and the surgeon, whose name it bears, set off with a party of officers to make the attempt, in which he succeeded, and obtained such an extensive view as induced me to decide upon ascending it, a few days afterwards, to procure bearings from the summit, and for the purpose of measuring its height with a barometer.
In the meantime I visited the Sedger river (Sarmiento's 'Rio de San Juan de Posesion'), and found some difficulty in entering it, because of several banks which are dry at low water. Between them, however, the stream keeps a small channel open, by which we effected our purpose. Every gale of wind causes the banks to shift, and between the times of our first, and last, visit to Port Famine, the river's mouth underwent many changes. The bed of the river is so full of fallen trees, that we could not go, with the boat, more than three miles and a half above the entrance; there it was about fifteen yards wide, bounded on each side by thickly wooded banks, of moderate height. The trees on these banks are large, chiefly the two species of Beech before-mentioned, and Winter's-bark; there are besides many shrubs, and an impenetrable underwood of Arbutus, Berberis, and currant bushes. The largest Beech-tree that we saw could not have been more than thirty or forty inches in diameter, which was insignificant compared with those noticed by Commodore Byron. In describing his excursion up this river, he mentions "trees that would supply the British navy with the best masts in the world."37 "Some of them are of a great height, and more than eight feet in diameter, which is proportionally more than eight yards in circumference."38 The Commodore may have been pleased by the appearance of these trees, but must have fancied their quality and dimensions such as he describes. The largest are generally rotten at the heart, and all are more or less defective. Their wood is heavy, and far too brittle for masts: we could not use it even for boat-hook staves. It makes, however, tolerable plank for boat-building, and, when seasoned, might be used in ships. For common purposes, such as houses, or fences, it is very serviceable.
We wandered about to examine the country; but, excepting the track of some quadruped, whose foot was small and cloven, rather like a pig's, we saw nothing new. The traces of foxes were numerous every where. We found no fish of any description in the river. Geese and wild ducks were numerous, whose young were at this time scarcely fledged, and an easy prey. We also observed here, for the first time, the parroquet, which Bougainville described to be common in the Strait. He carried specimens home with him; but some naturalists of those days decided that there must have been a mistake, because, as they averred, parroquets did not exist in so high a latitude. Bougainville, however, made no mistake, for the species39 is very abundant in the neighbourhood of Port Famine, and has been seen by us in all parts of the Strait. It feeds principally upon the seeds of the Winter's-bark. The existence of this bird in Tierra del Fuego is also mentioned by Cook and Narborough.40
All accounts of Port Famine informed us of its abounding in fish, but as yet we had taken none excepting with hook and line, although the seine had been frequently shot. At last, however, in the first week of February, we had a successful haul of mullet and smelts, many of the former weighing eight pounds, and the latter measuring fifteen inches in length. After this we were often very fortunate, and on one occasion caught, at one haul of the seine, sixteen hundred-weight of smelts, some weighing two pounds, and measuring twenty inches in length. A few days previously we had a draught of mullet, which served the crews of both Adventure and Beagle for three days. Geese, wild ducks and teal, snipe, and now and then woodcocks, were to be found by taking a short walk; there were, however, no quadrupeds fit for food which we could take. Foxes and wild cats were occasionally seen, and a foot-mark of some large animal of the feline race, probably a puma, was once observed upon the beach. We found many traces of horses, which showed that the Patagonian Indians sometimes come thus far south. Had we been so fortunate as to meet them here, we might have procured, perhaps, a regular supply of guanaco meat.
On the 9th of February, as the weather seemed favourable for ascending Mount Tarn,41 Lieutenant Cooke, the Surgeon, and Anderson, the botanical collector, set off in advance to select a convenient place for passing the night, carrying with them a tent and provisions. I followed later in the day, and, while the boat's crew were arranging their loads, made some observations with a barometer on the beach.
Our way led through thick underwood, and then, with a gradual ascent, among fallen trees, covered with so thick a coating of moss, that at every step we sunk up to the knees before firm footing could be found. It was very laborious work, and the ground being saturated, and each tree dripping with moisture, we were soon wet through. We proceeded along the same sort of road up a steep ascent; some one of the party constantly falling into deep holes covered by moss, or stumbling over fallen trunks of trees. As I carried a barometer I was obliged to proceed with caution, and succeeded in emerging from this jungle without accident. After about three quarters of an hour spent in this way, we reached an open space, where we rested, and I set up the barometer. Here we found a cypress of very stunted growth.
Our road hence was rather more varied: always steep, but sometimes free from impediment. Here and there we observed the boggy soil was faced with a small plant (Chamitis sp.) of a harsh character, growing so thick and close as to form large tufts, over which we walked as on hard ground. We struggled through several thickets of stunted beech-trees, with a thick jungle of Berberis underneath, whose strong and sharp thorns penetrated our clothes at every step; and began to find the fatigue very oppressive: some of my boat's crew suffered much, being unused to such exercise. At last we approached the place where Mr. Cooke and his party had established themselves, and upon hailing, were invigorated by a cheer in reply. We reached the bivouac in a very way-worn condition, and found, to our great comfort, the tent pitched, and a good fire burning.42
The ground was so exceedingly wet, that although we slept upon branches, forming a layer at least a foot thick, we found ourselves, in the night, lying as if in a morass, and suffering from cold, even with a large fire blazing at our feet. At daylight next morning, just as we were starting, a boat was seen sailing round Cape San Isidro, which, by the aid of a telescope, I made out to be the Hope.
We resumed the ascent, and passed over, rather than through, thickets of the crumply-leaved beech, which, from their exposure to the prevailing winds, rose no higher than twelve or fourteen inches from the ground, with widely-spreading branches, so closely interwoven, as to form a platform that bore our weight in walking. We next traversed an extent of table-land,43 much intersected by ponds of water. Mr. Tarn shot two plovers of a new species (Charadrius rubecola, Zool. Jour. vol. iv. p. 96), and a snipe. We then ascended three or four hundred feet, and crossed a deep ravine. The bottom of the ravine was clay-slate in a decomposing state, but the surface of the ground was strewed with pebbles of granite. Another plain, with many ponds, succeeded; the intervening spaces being covered with tufts of chamitis, and studded here and there with small clusters of dwarf beech; but the ground was so hard, and firm, that we proceeded rapidly, without fatigue, until we attained the height of 1,800 feet, when the ascent became very steep. Near the summit lay a large mass of snow, rapidly melting away. We reached the highest pinnacle of the mount at seven o'clock (having left our resting-place at four), and immediately set up the instruments. I was obliged to avail myself of Mr. Tarn's assistance to hold the barometer, whilst two of my boat's crew held the legs of the theodolite-stand, for the wind was blowing very strongly, and the edge of a precipice was close to us, perpendicular for many hundred feet, and thence downwards so steep, that any body going over would fall at least a thousand feet. The theodolite-stand was unavoidably placed within a very few inches of the edge, and I took a round of angles, suffering, however, intense pain from the piercing coldness of the wind, which, heated as we were by the ascent, was much felt, though the temperature was not lower than 39°. I was lightly clothed, and should have fared badly, had not one of the party lent me his Flushing jacket, while he descended under the lee of the mountain-top to make a fire. The barometer stood at 26,618, the temperature of the air being 40°, and of the mercury 43°.44 Unfortunately the day was very cloudy, and many squalls of sleet and rain, which obscured the hills, passed whilst I was taking bearings. To the N.E., towards the supposed Sebastian Channel, the horizon was too hazy to allow much view. A deep inlet was seen in that direction; but whether the land closed round, or whether a channel was at the bottom, we could not distinguish. A considerable body of water was observed to the southward of Cape St. Valentyn, behind Lomas Bay, but its extent was screened from our view by the intervention of the Lomas hills. It appeared to be a channel, the opposite or eastern side of it being formed by the high ranges previously seen from Point St. Mary. Cordova's Ports San Antonio and Valdez were distinctly made out; but, to the southward, every thing was enveloped in mist.
The bearings and observations, which occupied me nearly two hours, being completed, we all adjourned to a sheltered cleft in the rock close to our station, where we soon recovered the use of our fingers.45
Having accomplished our object, we began the descent. In a comparatively mild and agreeable spot, I again set up the theodolite and barometer, while some of the party employed themselves in fruitless attempts to kindle a fire. The height, by the barometer, proved to be 1,845 feet above the sea; and the bearings from this station were much better than those I had taken from the exposed summit.
We reached our tent at noon, having been absent seven hours. At three we reached the beach, where the barometer stood at 29,312 (air 61.°3,46 and mercury 62,°5).
Excepting near the sea, where clay-slate (very similar to that of Point St. Anna, but with an opposite dip) showed itself, the side of the hill is clothed with trees and underwood, and no rock is visible until one arrives at the ravine. Around the summit of Mount Tarn the ground is bare, but so covered with small decomposed fragments, that the solid rock only appears occasionally: it is very hard, and breaks with a conchoidal fracture: some of the specimens which we detached bore indistinct impressions of organic remains. We also found, projecting from the rock in which they were embedded, nodules, or small rounded masses of stone, in an advanced state of decomposition, mouldering away in laminar forms somewhat resembling the inner leaves of a cabbage. Several were brought away carefully, but before we arrived on board they had crumbled to pieces: the nucleus was quite hard, but was surrounded by concentric laminæ, more brittle the nearer they approached to the outer surface. It seemed as if the face of the summit above-mentioned was covered with the decomposing fragments of these nodules.
A kind of gun. – R. F.
By angular measurement from Observation Cove, Port Famine, with theodolite, allowing 1⁄12 of the intercepted arc for terrestrial refraction, the height is 2,850 feet.
Another observation, with the sextant, made it 2,855 feet. The mean 2,852 I consider more correct, from the difficulty of obtaining a correct reading of the barometer on the summit.
The above being the difference in the short space of three feet apart; the instrument, in the first case, being just under the lee of the rocky summit of the mountain, and in the last, above it, exposed to the wind.