Chapter

1 I    |   consulted him upon the most difficult problems in chemistry, a
2 III  |   this cipher; that cannot be difficult.”~At these words I quickly
3 XXIV | journey. It was therefore not difficult to know exactly our whereabouts.
4 XXXVI|       to me,” I said, “rather difficult to make out.”~“Yes, it is
5 XXXVI|     to make out.”~“Yes, it is difficult,” he said, “to calculate
6 XXXIX|     you not mistaken?”~“It is difficult to speak decidedly, uncle,
7 XLII |  Hunger once satisfied, it is difficult for a man to imagine the