Chapter 38—The Last Exploring Expedition From this date, February 3rd, the sun rose each day higher above the horizon, the nights were, however, still very long, and, as is often the case in February, the cold increased, the thermometer marking only 1º Fahrenheit, the lowest temperature experienced throughout this extraordinary winter. “When does the thaw commence in these northern seas?” inquired Mrs. Barnett of the Lieutenant. “In ordinary seasons,” replied Hobson, “the ice does not break up until early in May; but the winter has been so mild that unless a very hard frost should now set in, the thaw may commence at the beginning of April. At least that is my opinion.” “We shall still have two months to wait then?” “Yes, two months, for it would not be prudent to launch our boat too