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| Saturn and its System | 85 |
A second lies inside the first. In the solar system, our Earth occupies this place; in the Jovian, lo; in the Saturnian, Tethys; in the Uranian, Ariel.
Plotted in curves, the profiles of the four systems show a striking family resemblance, as can be seen from the diagram; and from what we have noted of the probabilities in the case, we cannot doubt that this betokens a law of system development.
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| POSITION OF MASSES IN SATELLITE SYSTEMS |
| FIG. XI. |
