Chapter

 1 IX   |    Fridrikssen, professor of natural sciences at the school of
 2 X    |  scandal of the professor of natural history.~“What!” he cried.~“
 3 XIII |    like an immense system of natural fortifications, of which
 4 XIV  |    At. intervals, under this natural shelter, there spread out
 5 XIX  |      gallery of lava, a real natural staircase, and as gently
 6 XXIV |       Axel. What can be more natural? At Newcastle are there
 7 XXXI |     I said.~“No; it is quite natural.”~“You may say so, uncle;
 8 XXXI |      which formed the little natural harbour, I perceived Hans
 9 XXXII| vying with my surprise.~What natural force could have produced
10 XXXIV|      is nothing worse than a natural phenomenon.~As we approach
11 XLIII|     eruption. They are quite natural.”~“But suppose they should
12 XLIV |      if he did not share our natural emotion, at least his countenance
13 XLV  |      in places the action of natural phenomena.~While these questions