Narrative of the surveying voyages of His Majesty's ships Adventure and Beagle, between the years 1826 and 1836. Fitzroy Robert

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20

From an attentive perusal of the voyage of Magalhaens, I have lately been led to think that this is the mountain which Magalhaens called Roldan's Bell. Sarmiento has, however, assigned that name to a mountain at the back of his Bay of Campana, which will be noticed in it's proper place. The name of Mount Sarmiento was too long, and too well established with us, or I should have restored the name bestowed upon it by Magalhaens. Herrera, in his Descripcion de las Indias Occidentales, cap. xxiii, notices the "Campana de Roldan" as a great mountain in the midst of the entrance of a channel; they gave it this name (Campana de Roldan) because one of Magalhaens's companions, named Roldan, an artillery officer, went to examine it. "Y la Campana de Roldan una Peña grande en medio al principio de un canal: dieron le este nombre porque la fué a reconocer uno de los compañeros de Magallanes llamado Roldan que era artillero."

21

22

At a subsequent visit, embracing a period of 190 days, it was only seen on twenty-five, and during seven days only was it constantly visible. On the remaining eighteen, portions only were seen, and those but for a few hours at a time.

23

Sarmiento's Voyage, p. 25.

24

Id. l.c.

25

See Burney, ii. p. 45, for a fuller account; also id. 71.

26

Who made a remark on the occasion, which became proverbial, "that if a ship carried out only anchors and cables, sufficient for her security against the storms in that part of the world, she would go well laden." Burney Coll. vol. ii. 45.

27

Burney, ii. 51.

28

The situation of "Jesus" must have been about half-way between the First and Second Narrow, near the point named in the chart N.S. de Valle, where some peaked elevations, dividing vallies near the coast line, are conspicuous. The Beagle anchored there, and found plenty of fresh water.

29

Close to Port Famine.

30

From Sarmiento's description of the coast, Point Santa Brigida is the outward point of Nassau Island.(258) See Sarmiento's Voyage, p. 220.

31

Formerly spelled 'Candish.'

32

"Near to Port Famine they took on board a Spaniard, who was the only one then remaining alive of the garrison left in the Strait by Sarmiento. The account given by this man, as reported by Magoths, is, that he had lived in those parts six years, and was one of the four hundred men sent thither by the King of Spain in the year 1582, to fortify and inhabit there, to hinder the passage of all strangers that way into the South Sea. But that town (San Felipe) and the other Spanish colony being destroyed by famine, he said he had lived in a house, by himself, a long time, and relieved himself with his caliver(259) until our coming thither." Burney, ii. p. 96. This man died on the voyage to Europe. Id. p. 97.

33

So named by Bougainville.

34

It belongs to the group which M. Temminck has lately named Hylobates, without attending to the name long since conferred upon it by Dr. Fleming. I designated it Oidemia Patachonica, from its large dimensions, in my communication upon the Ornithology of the Straits. Zoological Journal, vol. iv. p. 100. On my return to England, I found that M. de Freycinet had figured this bird, in the account of his last voyage in l'Uranie, where it is described by Messrs. Quoy and Gaimard under the name of Micropterus brachypterus.

35

Cook's Second Voyage, 4to. p. 570.

36

On the shores of Eagle Bay we procured a large collection of shells, among which were Margarita violacea (Nob. in Zool. Journ. v. 346, No. 53), a beautiful Modiola (M. trapesina, Lam.^k), a new Pecten (P. vitreus Nob. in Zool. Jour. v. 337, No. 17), and a delicate transparent-shelled Patella, answering the description of P. cymbularia. These four species were found attached to floating leaves of the kelp (Fucus giganteus), and afford food to the steamer-duck. We also collected good specimens of Murex Magellanicus, Lam.^k, of Fissurella picta, Lam.^k, and a great number of the common patella of the Strait, which forms a considerable article of food for the Natives.

37

Byron's Voyage round the World, 4to. p. 38.

38

l. c.

39

Psittacus smaragdinus, Gmel. I have no doubt that the bird we saw is the same as Bougainville procured, and from which a description has been given in the Ency. Méth., art. Ornith. 139; although a material error is made, for they are not splendidé viridis, nor is the uropygium red, in other points, however, the description is correct. See Buffon's Hist. Nat. des Oiseaux, vi. 262. Pl. enl. n. 85, Perruche des Terres Magellaniques.

40

Bougainville says, "we have likewise perceived some perrokeets: the latter are not afraid of the cold." To which the English translator, T. R. Forster, who is incredulous of the correctness of Bougainville's assertion, appends the following note: "Perruches, probably sea-parrots, or auks." Buffon also doubted the fact, and the author of Histoire Naturelle, art. Oiseaux, tom. ii. p. 322, suggests the possibility of a specimen having been obtained in some other part of the world, and put, by mistake, amongst those collected in the Strait.

41

So named because Mr. Tarn, the surgeon of the Adventure, was the first person who reached its summit.

42

The height of this place, as shown by the barometer, on the ascent, was 941 feet, and, on the descent, 973 feet.

43

On this table-land the barometer stood at 27,767. Temperature of the air 46°,5, and of the mercury 47°,5, which gave the elevation 1,327 feet.

44

The result of the barometric observation for the height of Mount Tarn is as follows:

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.

45

By Daniell's hygrometer, used in this sheltered spot, I found the temperature of the air to be 48°; dew point 41°: but upon exposing the instrument to the wind, the air was 39½°, and the dew point 36°: the difference in the former being 7°; and the latter 3½°; from which the following results are obtained:

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.

46

The air was so dry this afternoon that I failed to procure a deposit of dew upon Daniell's hygrometer, although the internal temperature was lowered from 61° to 37°. One of Jones's portable hygrometers was also tried, and the temperature was lowered to 31°½ without a deposit; so that, the difference being more than thirty degrees, the expansive force of the air must have been less than 212, the dryness, on the thermometric scale, less than 367, and the weight of vapour, in a cubic foot of air, less than 2,355 grains.

47

Fires made to attract attention, and invite strangers to land.

48

This fern we found at the island of Juan Fernandez also.

49

After the lieutenant of the Adventure.

50

At Mr. Tarn's request.