Chapter

1 IV |        be perpendicular to the plane of the horizon; and the
2 V  |      molecules situated on the plane of the equator, escaping
3 XI |   fired perpendicularly to the plane of the horizon, that is
4 XIX| inclination of its axis to the plane of its orbit. Hence the
5 XIX|  rotation less inclined to the plane of its orbit!”~“Hurrah!”
6 XV |        a cone intersected by a plane parallel to one of the sides.”~“
7 XV |       of a conic surface and a plane parallel to its axis, and