 | 1856 - 594 σελίδες
...• * • 11. Numerous facts in Geology strongly indicate that at some remote periods of duration, the position of the earth's axis, with regard to the plane of its orbit, was different from what it is at present, and that successive periods of change have at... | |
 | Ohio. Department of Education - 1876 - 386 σελίδες
...from A, and how many degrees? 3. If the length of our days, during the year, were equal, what would be the position of the earth's axis with regard to the plane of the ecliptic, and what imaginary lines on the earth's surface would be removed ? 4. What direction is Cape Horn from... | |
 | 1831 - 916 σελίδες
...by the eye. 11. Numerous facts in Geology strongly indicate that at some remote periods of duration, the position of the earth's axis with regard to the plane of its orbit was different from what it is at present, and that successive periods of change have at length... | |
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... of gravity is made to coincide in principle, with its actual operation when unrestrained ; while at the same time the bodies submitted to its action move with velocities which can be readily followed by the eye. 11. Numerous facts in Geology strongly... 