Chapter

 1 IV    |          second and third lines, I observed the words, “rots,” “mutabile,” “
 2 VI    |          the Icelandic sage do? He observed that at the approach of
 3 VIII  |        Governor of Iceland.~I also observed the famous document most
 4 XVII  |          narrow standing ground, I observed that the bottom of the hole
 5 XVIII |        through gneiss, it has been observed that the increase of a degree
 6 XX    |         After ten hours’ walking I observed a singular deadening of
 7 XXV   |             Yes; I have everywhere observed the angles and the inclines.
 8 XXV   |         dense atmosphere. Have you observed how intense sound is down
 9 XXVI  |           Suddenly turning round I observed that I was alone.~Well,
10 XXVIII|        similar phenomenon has been observed in many places; amongst
11 XXXI  |      coming to light, which I have observed carefully: that the needle,
12 XXXVII| Liedenbrock sea for a mile when we observed a sudden change in the appearance
13 XXXIX |            at every period. Then I observed, mingled together in confusion,