Book,  Chapter

1        I,  IV   | Northern Lights, overspread the firmament, and momentarily dimmed
2        I,  IV   |        appeared suddenly in the firmament, though it were but to lose
3        I,  VI   |         star was visible in the firmament. To have ascertained that
4        I,  VII  |   identify any one point of the firmament may be more readily imagined
5        I,  VII  |       constellations in a clear firmament above.~The night was magnificent.
6       II,  III  |         inquiring glance at the firmament, as he was greatly interested
7       II,  III  |         that one quarter of the firmament.~A comet! No time must be
8       II,  VIII |    nights, when the book of the firmament lay open before him, he
9       II,  XVIII|         enormous portion of the firmament above, and approaching with