We left Back's River behind on the last day of the year, and made about seven miles in a south-east direction, and encamped and stopped to hunt, the last halt we made for that purpose. The mean temperature for December was -50.4 degrees Fahrenheit, the lowest -69 degrees, and the highest -26 degrees. January 3d the thermometer reached the lowest point that we saw during our sojourn in this climate--in the morning -70 degrees, at noon -69 degrees, and at five o'clock in the afternoon the extraordinary mark of -71 degrees. Equeesik moved his igloo about ten miles ahead this day, but the other two igloos were compelled to wait for their hunters to come in. The day, notwithstanding the intensity of the cold, was very pleasant. There was scarcely a breath of wind, and our igloo door was open the entire day. In fact, it was a far pleasanter day to be out of doors than with 50 degrees warmer and the wind blowing. January proved a very stormy month; indeed, there were but eleven days in which we could travel, and we only accomplished ninety-one miles toward our destination during that time. One day, the 19th, we lay over to follow up some musk-ox tracks we had seen the day previous. The weather was fine, notwithstanding a pretty strong wind and a temperature of -65 degrees. [Illustration: THE MARCH IN EXTREME COLD WEATHER.] We followed the tracks about twenty-five miles, and only desisted when we found that wolves were ahead of us and had already frightened the game away. The country is filled with reindeer, and on every hill-side their breath can be seen rising like clouds of steam. A herd that was frightened by the dogs, which were following the musk-ox tracks, scampered off in every direction, and it looked as if a lot of locomotives had been let loose over the country, the smoke coming from their lungs in great puffs as they ran, and streaming along behind them. When the sledges are moving during a clear cold day, the position of any one of them is known to the team, though they may be widely separated. Sometimes, for the advantage of hunting to be obtained thereby, our igloos have been separated by a day's march of about ten miles, and at that distance the condensed breath of the dogs and people could be distinctly seen and the position of the igloos located. January proved the coldest month of our experience, with a mean thermometer of -53.2 degrees, lowest -71 degrees, and the highest -23 degrees Fahrenheit. We experienced one storm of thirteen days' duration during the latter part of January and early part of February, and found but thirteen days during which we could travel in the latter month.