Part,  Chapter

1      I,  X   | Probably real hardships would commence when they did arrive at
2      I,  X   |   real exploration would only commence on the shores of the Arctic
3      I,  XIII|   lagoon Hobson determined to commence the construction of the
4      I,  XVII|    within doors, was about to commence. The last Arctic birds forsook
5      I,  XXII|       up of the frost did not commence until early in April. The
6     II,  III |        Mac-Nab was ordered to commence the construction of a huge
7     II,  XV  |   winter.~“When does the thaw commence in these northern seas?”
8     II,  XV  |      now set in, the thaw may commence at the beginning of April.
9     II,  XV  |  breaking up of the ice would commence suddenly. Fresh crevasses