On the 23d we found, by digging a hole in the ice, in the middle of the harbour, where the depth of water was four fathoms and a quarter, that its thickness was six feet and a half, and the snow on the surface of it eight inches deep. This may be considered a fair specimen of the average formation of ice in this neighbourhood since the middle of the preceding September: and as the freezing process did not stop for six weeks after this, the produce of the whole winter may, perhaps, be reasonably taken at seven, or seven and a half feet. In chopping this ice with an axe the men found it very hard and brittle, till they arrived within a foot of the lower surface, where it became soft and spongy. Being extremely anxious to get rid, as early as possible, of the drying of our washed clothes upon the lower deck, I had to-day a silk handkerchief washed and hung up under the stern, in order to try the effect of the sun's rays upon it. In four hours it became thoroughly dry, the thermometer in the shade being from -18° to -6° at the time. This was the first article that had been dried without artificial heat for six months, and it was yet another month before flannel could be dried in the open air. When this is considered, as well as that, during the same period, the airing of the bedding, the drying of the bed-places, and the ventilation of the inhabited parts of the ship, were wholly dependant on the same means, and this with a very limited supply of fuel, it may, perhaps be conceived, in some degree, what unremitting attention was necessary to the preservation of health, under circumstances so unfavourable and even prejudicial. The morning of April 27th being very fine, and the thermometer at +6°, the ship's company's bedding was hung up to air, between the fore and main rigging, being the first time we had ventured to bring it from the lower deck for nearly eight months. While it was out, the berths and bed-places were fumigated with a composition of gunpowder mixed with vinegar, and known familiarly by the name of _devils_; an operation which had been regularly gone through once a week during the winter.