The English at the North Pole by Jules Verne

That day the thermometer went down to 3 degrees below zero. The weather was pretty calm, and the cold without breeze was bearable. Hatteras profited by the clearness of the atmosphere to reconnoitre the surrounding plains; he climbed one of the highest icebergs to the north, and could see nothing, as far as his telescope would let him, but ice-fields and icebergs. No land anywhere, but the image of chaos in its saddest aspect. He came back on board trying to calculate the probable duration of his captivity. The hunters, and amongst them the doctor, James Wall, Simpson, Johnson, and Bell, did not fail to supply the ship with fresh meat. Birds had disappeared; they were gone to less rigorous southern climates. The ptarmigans, a sort of partridge, alone stay the winter in these latitudes; they are easily killed, and their great number promised an abundant supply of game. There were plenty of hares, foxes, wolves, ermine, and bears; there were enough for any sportsman, English, French, or Norwegian; but they were difficult to get at, and difficult to distinguish on the white plains from the whiteness of their fur; when the intense cold comes their fur changes colour, and white is their winter colour. The doctor found that this change of fur is not caused by the change of temperature, for it takes place in the month of October, and is simply a precaution of Providence to guard them from the rigour of a boreal winter.

Seals were abundant in all their varieties, and were particularly sought after by the hunters for the sake, not only of their skins, but their fat, which is very warming; besides which, the liver of these animals makes excellent fuel: hundreds of them were to be seen, and two or three miles to the north of the brig the ice was literally perforated all over with the holes these enormous amphibians make; only they smelt the hunters from afar, and many were wounded that escaped by plunging under the ice. However, on the 19th, Simpson managed to catch one at about a hundred yards from the ship; he had taken the precaution to block up its hole of refuge so that it was at the mercy of the hunters. It took several bullets to kill the animal, which measured nine feet in length; its bulldog head, the sixteen teeth in its jaws, its large pectoral fins in the shape of pinions, and its little tail, furnished with another pair of fins, made it a good specimen of the family of dog-hound fish. The doctor, wishing to preserve the head for his natural history collection, and its skin for his future use, had them prepared by a rapid and inexpensive process. He plunged the body of the animal into the hole in the ice, and thousands of little prawns soon ate off all the flesh; in half a day the work was accomplished, and the most skilful of the honourable corporation of Liverpool tanners could not have succeeded better.