Book,  Chapter

1        I,  V   |      though it were crossing the ecliptic under the tropics, it sank
2        I,  VII |          axis with regard to the ecliptic would introduce a change
3        I,  VIII|      angle with the plane of the ecliptic, her various seasons, like
4        I,  XV  | correspond with the orbit of the ecliptic? and was there no chance
5       II,  I   |  December, a comet, crossing the ecliptic, had come into collision
6       II,  III |        orbit to the plane of the ecliptic, an angle which is generally
7       II,  V   |       earth, which traverses the ecliptic at a rate of 21,000,000
8       II,  VIII|     never be coincident with the ecliptic; or, lastly, its course
9       II,  VIII|          it would only reach the ecliptic too late to permit any junction