PART III.--RINGS OF SATURN. ---------+-----------------------------+--------------------------+ | | | Rings. | Diameters of Rings | Areas of Rings | | in Miles. | in Square Miles. | ---------+-----------------------------+--------------------------+ Outer { | Outer | 172,240 | } 5,252,035,427 | { | Inner | 151,590 | } | | | | | Middle { | Outer | 148,100 | } 6,919,075,757 | { | Inner | 114,560 | } | | | | | Dark { | Outer | 110,060 | } 3,040,689,488 | { | Inner | 90,993 | } | | | | | | | Total | 15,211,800,672 | ---------+----------+------------------+---------+----------------+ |Thickness | | | Volume at | Rings. | of Rings | Volume of Rings |Density. |Density of Water| | in Miles.| in Cubic Miles. |(Water=1)|in Cubic Miles. | ---------+----------+------------------+---------+----------------+ Outer { | | | | | { | | | | | | | | | | Middle { | | | | | { | | | | | | | | | | Dark { | | | | | { | | | | | | | | | | | 90 | 1,369,062,060,480| ·0001425| 195,000,000 | ---------+----------+------------------+---------+----------------+ (4) All of these bodies, planets, satellites, and rings were supposed to revolve around their primaries, and to rotate on their axes, in the same direction viz., from right to left, in the opposite direction to the hands of a watch. In addition to the above definition it is necessary to give some sort of description of the various parts of the machine or system which has to be made out of the nebula, with their positions, dimensions, and details. This we believe will be made plain enough, in the simplest manner, by Table No. I., taken and calculated from the elements of the solar system given in almost all astronomical works, from which we have selected what we believe to be the most modern data.