2. Neither few nor slight were our struggles to remedy the various inconveniences which we encountered; their enumeration here is meant to aid the experience of future adventurers. Though our arrangements were far from complete or perfect, we had never to complain of the discomforts which previous expeditions, even the second German expedition to Greenland, had to endure from the excessive condensation of moisture. Against this enemy we protected ourselves by the snow wall which we raised round the ship, by covering in the deck windows of the cabin, by lining our quarters with vulcanized india-rubber, by sheds built over the cabin stairs, all acting as condensers. Before, however, I enter on the unavoidable inconveniences to which we were exposed by the formation of ice, or by damp and the sudden change of temperature, I would preface my remarks by observing, that all these discomforts and inconveniences are to be endured far more easily than would seem possible to the reader, and that life on board a ship of a North Pole expedition, under normal circumstances, is free from annoyances worthy of mention. [Illustration: THE “TEGETTHOFF” IN THE FULL MOON.] 3. It is a matter of the last importance to keep the air pure and wholesome, and to maintain an equable warmth in the quarters of the officers and crew. The accumulation of moisture and consequent congelation in them is an inconvenience which requires incessant watchfulness to avert.[18] The destruction of the snow wall which surrounded the ship increased the condensation; for that snow covering was nothing but a greatcoat for the ship and those on board. In the beginning of November 1872 the frost on the bulk-heads of the berths, and on those parts of the cabins which were impervious to warmer air, was very perceptible. The bed-clothes were frozen at night to the sides of the ship, the iron knees of the beams—not, alas! covered with felt—gleamed like stalactites, small glaciers were formed under the berths, and even in October the skylight was frozen, inches thick. Every rise in the temperature caused this formation of ice to fall down like a “douche,” and with the opening of a door a white vapour, even in October, streamed along the deck. We prevented the increase of moisture by cutting the openings in the deck, over which we placed two chimneys, each a foot high and covered with a thin metal cap. We boarded up the skylight, leaving a lid by which to air the cabin. But in spite of all this the variations of temperature within our quarters were extraordinary. If the heat of the air in the middle of the cabin and on a level with our heads rose from -2° F. to 76° F.—our usual mean temperature—it amounted on the floor to a little above 34° F., and fell during the night not unfrequently below freezing-point.