Part,  Chapter

 1      I,  III  |          Hudson’s Bay Company. He ascertained that an expedition was to
 2      I,  XII  | Lieutenant and the astronomer had ascertained the longitude with great
 3      I,  XXIII|    beach-marks made on the beach, ascertained beyond all doubt that whereas
 4     II,  II   |       altitude of the sun must be ascertained before and after noon, and
 5     II,  II   | observation of the day before, he ascertained exactly the longitude in
 6     II,  VII  |     breath, whilst the Lieutenant ascertained their position as accurately
 7     II,  IX   | incredible!~The first thing to be ascertained was whether the poor creature
 8     II,  IX   |            and, as the Lieutenant ascertained in taking his bearings,
 9     II,  XV   |     Lieutenant’s remark. They had ascertained that the barrier of ice
10     II,  XVII |           April Lieutenant Hobson ascertained that the wandering island