Notwithstanding all the precautions of the natives to avoid the drifting snow, still it was so deep at times upon a level, that when passing along, and even quite near the huts, we could not discern the tops of them, and should not have known that we were in their immediate vicinity, had it not been for tracks we discovered in the snow, or from the barking of the dogs. THE METHOD OF LIGHTING THEIR HUTS. The lamps are in the form of a hollow, circular dish, somewhat in the shape of a bowl, made of clay. This vessel is filled with seal's blubber, and around the edge of the lamps inside, is placed a row of moss of fine quality, obtained from the mountains. This moss is set on fire, and by its heat the blubber in the vessel is converted into oil, which in turn feeds the moss, and thus good light is obtained. Two or three such lamps in a hut would afford considerable heat. The smoke, however, which proceeds from them is immense, and exceedingly offensive. It is so thick, that every article in the hut is covered and blackened with it. When one comes to clear air and breathes, there will be seen a volume of darkened vapor going forth from his nostrils and mouth. These lamps are burning nearly all the time, and especially when the days are short, and during the long night of darkness in midwinter. Neither the smoke from the lamps, nor the quality of food we had to eat, nor the manner of eating it, nor constantly observing the filthy habits of the natives, was all the degradation we felt and experienced. With the strictest propriety it can be said the natives were loaded with vermin; and yet as indifferent, apparently, to such a condition, as if it were the most trivial circumstance in the world. Indeed, they appeared to enjoy the presence of the innumerable hosts that swarmed in all parts of their huts. Their persons, garments, skins in the huts, sleeping apartments, &c., were literally alive with them. The misery of such a state we have neither words nor heart to attempt to describe. [Illustration: POLAR BEARS.] CHAPTER VII. Health of the Natives.--Their Diseases.--Captain N. prescribes a Remedy.--Their superstitious Notions.--Mr. Osborn prescribes for the Sick.--A fatal Case.--They surround Mr. O. with threatening Gestures.--Native Remedy for Nose Bleeding and Sore Eyes.--Burial Ceremony.--Marriages.--General Appearance of the Natives.--Their Character.--Their Habits of Industry.--Property.--Language.--Icebergs.--Their Formation.--The Distance to which Icebergs float.--Their Magnitude.--Field Ice.--The sudden Disappearance of Ice.-- How accounted for.--Icy Vapor.--Poisoning. THE HEALTH OF THE NATIVES. So far as we could learn, they had the usual share of health with other communities. A good proportion of them reached an advanced age in life; and some, we should judge from their appearance, were much older than the oldest among our own countrymen. DISEASES.