Part,  Chapter

1      I,  I   |      was doubtless anxious to penetrate to the extreme limits of
2      I,  II  |    and indefatigable, who now penetrate to the very confines of
3      I,  VII |    the rays of the sun do not penetrate in the winter, when the
4      I,  VIII| replied Hobson. “Do they ever penetrate as far as this?”~“Oh yes !”
5      I,  IX  |      riot a drop of water can penetrate. This light, easily-managed
6      I,  X   |      case he was the first to penetrate to the northern coast of
7      I,  X   |    knew that he would have to penetrate a good deal further north,
8     II,  XX  |   board.~Rain heavy enough to penetrate to the ice-crust fell in