Part,  Chapter

 1      I,  III|           corona. But what is the origin of this corona? Is it a
 2      I,  III|          solve the mystery of the origin of the phenomenon; but in
 3      I,  III| satisfactorily to establish their origin, he would be entitled to
 4      I,  VI |        are not mistaken as to the origin of the footprints.”~“No,
 5      I,  XI |        tribes of such a different origin, and of such dissimilar
 6      I,  XV |    manifest traces of its igneous origin; whereas the site of the
 7      I,  XV | sedimentary formation and aqueous origin. Stone, so conspicuously
 8      I,  XV |          clearly that it owed its origin to volcanic eruptions. The
 9      I,  XIX|           characteristic of their origin.~Mrs Barnett had the patience
10     II,  IV |          its mode of formation or origin. The ice-masses which proceed