Part,  Chapter

1      I,  V   |           mean temperature of the nights kept the surface of the
2      I,  VI  |        and the temperature of the nights was no longer below freezing
3      I,  X   |         night.~For the next three nights the party rested. Hobson
4      I,  XIII|      first bitter frosts and long nights, would arrest all further
5      I,  XVII|           promising him fine cold nights admirably suited to astronomical
6      I,  XXII|  whirlpools of snow, and its long nights, would again set in.~Hobson,
7     II,  IX  | accustomed to the long dark Polar nights—she felt sure that she was
8     II,  XIII|           than four days and four nights to get back to the island.
9     II,  XV  |     higher above the horizon, the nights were, however, still very