IGNEOUS THEORY. 77
ive of motive power, and that, if these forces are sufficient in quantity, revolutions of the shell or globe must necessarily ensue. We treat further upon this subject
in its appropriate place.
It is to be hoped that the wonderful mysteries that have from all time lain concealed within this well guarded open Polar Sea, will soon be revealed to the world; awl if we can possibly induce "the powers that be" to appropriate the sum needed to equip an expedition upon the Pacific side, we doubt not that this sealed book maybe
opened, and the problem that has hitherto eluded the combined efforts of the entire civilized world, may be solved in less than a single year. Let every reader do his utmost to aid this enterprise, and let us inaugurate as soon as possible a Pacific, Arctic, exploring expedition; for when all that lies hidden within the polar circle, is revealed to mankind, then humanity will take another
stride in advance.
TILE IGNEOUS THEORY OR INTERIOR FIRE GLOBE.
It was conceived by the elder Herschell, that extended system was at one period in its history,an extended
mass or spheroidal globe of nebulous matter or gaseous substance, larger in diameter than the orbit of the most exterior planet; that, this mass at some time in the