The weather is peculiar, for the rainfall is excessive, and as a rule there is not more than one moderately dry day out of the seven.
The peaks and ridges of the broken-up range of mountains, of which the islands and coast are formed, intercept the moisture-laden clouds which are being continually wafted from seaward by the prevailing westerly winds, frequent and long-continued downpours being the result. From observations taken with the rain gauge, we estimate the average daily rainfall to be 0·41 inch, and that of the wettest month of which we have had experience, viz., the month of April, 0·522 inch. The annual rainfall, estimated from the mean of eight months' observations, we find to be 149·65 inches. The mean annual temperature, estimated similarly from observations extending over the months of January, February, March, April, May, (nine days of) October, November, and December, we found to be 49·2, the extremes of temperature being 36° and 60°. When we reflect that the annual rainfall in London is about 23·5 inches, while the yearly average of temperature is 46·9 Fahr., we can realize the extent to which rainy weather prevails in this land, and the comparative coldness of its nevertheless equable climate. We were told by the master of a sealing schooner that the climate of Western Fuegia varied but little throughout the year, and that in his opinion the finest weather was to be found in mid-winter; and, indeed, on entering the channels in the month of October—that is, in the early spring—we ourselves found the appearance of the country but little different from our recollections of the previous midsummer. There was, perhaps, more snow on the hill-tops, but there was none at all on the lower slopes of the hills, and the evergreen vegetation seemed almost as luxuriant as during midsummer.
As might be expected from the large rainfall and comparatively equable temperature, this climate is very favourable to the growth of cryptogamous plants; ferns, mosses, and Hepaticæ abound, clothing the stems of dead and living trees, and occupying every shady nook and crevice. Among the ferns most commonly seen were several beautiful species of the genus Hymenophyllum. Of flowering plants there were also some of great beauty, the most attractive of which were the Philesia buxifolia, the Desfontainea hookeri, the Berberis ilicifolia, the B. empetrifolia, and the Embothrium coccineum. The former is a sort of under-shrub, of creeping habit, and is most commonly seen twining round the stem of the evergreen and antarctic beeches, to a height of six or eight feet from the ground, its lovely, rose-coloured, bell-shaped flowers showing to great advantage against the delicate background of ferns and mosses, which, growing from the bark of the tree, display the flowers, but almost conceal the branches of the twining Philesia. There is another beautiful plant, of the same natural order, met with in Southern Chili, which the people take great pride in, showing to strangers as the glory of their gardens. It is called the "Copigue" (Lapageria rosea). The only trees which attain to any reasonable size as such are the evergreen and antarctic beeches (Fagus antarctica and F. betuloides), the winter's bark (Drimys winteri), and the cypress (Libocedrus tetragonus). The bark of the Drimys winteri was formerly employed in medicine, but has latterly fallen into disuse, partly from the difficulty of obtaining the genuine article in Europe. It has tonic and stimulant properties. The infusion of the dried bark is so hot and peppery as to burn the tongue and throat; but, strangely enough, the spirit tincture extracts the tonic bitter with but very little of the peppery principle.
The summits of the low hills, which are usually bare of trees or brushwood, are covered with a sort of swamp formed of astelias, gaimardias, and calthas, whose interlacing roots form a more or less compact sod, which, as one walks on it, shakes from the fluctuation of the bog water beneath.
The rock of the district is a cross-grained syenite, intersected with dykes of greenstone, of very variable thickness. This is the prevalent rock; but about Port Rosario, on the north side of "Madre de Dios" island, there is an outcrop of limestone. The latter is of a pale-blue colour, in some cases assuming the character of marble; and when much exposed to the weather, presents a curious honeycombed appearance, due to the solvent action of the rain. This rock is unfossiliferous. The disintegration of the syenite from the usual atmospheric agencies is rapid enough; but the resulting detritus does not contribute to form a good clay.
If an artificial section be made of the soilcap, or if advantage be taken of a landslip to examine it carefully, it will be seen to be composed of a dense network of interlacing roots, containing in its interstices a small quantity of black mould, the latter increasing in proportion as the basement rock is reached. This spongy mass of tangled vegetation, ever saturated with moisture, is the soil on which the trees clothing the hillsides take root. On the little plateaus about the hill-tops, however, it only contains the roots of the marsh plants above mentioned, and those of an odd stunted bush. On first coming to this region, I was much struck on seeing that the forest approaches so close to the water's edge, and that the banks overhang so much that frequently the branches of the trees dip into the salt water; and in some places a black snag projecting above the surface of the inshore water tells the fate of a tree that had perished from immersion. These phenomena, among others to be hereafter alluded to, are, I think, to be attributed to a slow but steady sliding motion of the soilcap over its rocky foundation on the sloping hillsides, a motion which is in many respects analogous to the flow of a glacier.
Of the natives inhabiting the Patagonian channels between the Gulf of Peñas and Smyth's channels, very little is known; and I am the more inclined to attempt a description of their physical characteristics and habits of life, because of all the savage tribes of whom I have had experience—including the Australian aborigines, who are generally credited with being of the lowest order—I believe that the people whom I am about to describe bear away the palm as the most primitive among all the varieties of the human species. They are certainly closely related to the Fuegians who live south of the main Straits of Magellan, from whom, however, they differ sufficiently to show a tribal distinction. Fitzroy, in enumerating six tribes of Fuegians, denominates those of whom I speak as "the Channel or Chonos tribe." They lead a wandering life, constantly shifting in their canoes from place to place, and travelling in families of about twelve individuals, all of whom stow in the same canoe, and sleep in the same hut. We have never been able to ascertain the precise relationship existing between the different members of these families; but a party of twelve would probably consist of three men, five women, and four children.
For the greater part of the year they live almost entirely on mussels and limpets, this simple fare being only varied occasionally by the capture of a seal, a small otter, or of an equally small coypu. That they get this kind of fresh meat but rarely is evident from our inspection of their midden heaps, hillocks of refuse in the vicinity of the huts, consisting mainly of shells. I must not omit to mention, however, that bones of the steamer-duck and cormorant are also found about the huts, but not in any quantity. During the months of December and January, the Magellan seals "haul up" to breed on the rocks of the outer coasts, and during this season there is a great gathering of natives about the "rookeries," as the sealers call them, so that for a short portion of the year these unfortunate wretches can luxuriate upon a diet of fresh meat.
They are of low stature, the men averaging 5 ft. 1 in. in height, while the women are still shorter. Of eight men whom I measured carefully, the extremes were 4 ft. 10 in. and 5 ft. 3 in.; so that there is a strong contrast between them and their neighbours in the same latitude, the Patagonians, whose average stature (I speak of the men only) is 5 ft. 10 in. Their complexion is of an ochrey copper colour; the eyes are dark, and placed close together; the upper eyelid curving downwards abruptly as it approaches the nasal side, or inner canthus, in such a way as to give an appearance of obliquity in the eye, which reminds one of that feature in the face of a Japanese. The sclerotics, or so-called "white" of the eye, have a yellow tinge, and in the adults the conjunctiva is injected or bloodshot, probably from their habit of sitting over a smoky wood fire. The upper lip is thin and curved; and when a grimace is made, it tightly embraces the teeth, so as to communicate a peculiarly wicked expression to the countenance. The maxillæ are broad, and the teeth are of glistening whiteness. In the female the front teeth present an even regular line; but in the male adult there is usually a front tooth missing, as if knocked out designedly. The hair is long, black, and coarse, and is peculiar in growing sometimes from the temples, as well as from the scalp, a circumstance from which the forehead acquires a narrow pyramidal appearance. There are no whiskers, but on the lips and chin a few scattered hairs are seen. The upper extremities and trunk are well formed, but the legs are very poorly developed, so much so as to seem out of proportion to the rest of the body. The skin overlying the kneecaps is particularly loose, baggy, and wrinkled when the native stands erect, a circumstance which, in the case of the southern Fuegian, is very justly attributed (vide Voyage of Adventure and Beagle, p. 176) to the practice of frequently sitting on the heels, with the legs flexed to a maximum.
Some of the emotions are expressed by very decided contortions of the features and limbs. Delight, when intense, is shown by a display of the closed teeth, accompanied by a clucking sound, and a curious up and down bobbing motion of the body. Eagerness is expressed by a clucking sound and a frothing of the lips. Anger is characterised by a tightening of the upper lip, a protrusion of the lower jaw or mandible, and a slight display of the upper incisors.