102 Ohservaliovs on the Vhcenomena 



9. The density of each stratum is inversely as the increasing 

 bulks in each stratum, that is, invcrseFy as the cubes of the radii. 



10. The momenta of every equal bulk in different strata are 

 inversely as the density, which is inversely as the cube of the 

 ladii. 



11. But the momenta are also directly as the angular velo- 

 cities, which are directly as the radii, p. 25. 



JVhence the following results ohtavi. 



1. That the density of the gaseous medium, the density of 

 the planets, and their velocities in their orbits, decrease from the 

 &un to the confines of the solar system. 



2. That the planets revolve or swim in this medium in strata 

 of equal density with that of the respective planet which revolves 

 in those strata ; otherwise the planets must siid;, or fall to the sun, 

 or ascend into a medium of a uniform density with itself. 



3. The orbicular motions of the superior planets in a gaseous 

 medium, must be accelerated motions, as the rotation of this 

 medium at the sun's surface is performed in the same time as 

 the rotation of this luminary ai)out its axis, (as the velocity of 

 rotation of the medium cannot be admitted to exceed that of 

 the sun,) or in the space of 25 days 10 honrs. Rut at the di- 

 stance of the Herschcl planet, its period occupies ;:J068S days 

 17 hours, whence an acceleration nuist be produced in the su- 

 perior strata of the gaseous medium ; and consequently in the 

 superior planets, from the effects of friction produced in the re- 

 spective strrta of circumambient matter, as there must be a na- 

 tural tendency existing in the respective strata of the medium in 

 which the planets revolve, to produce an equalization of motion. 



And, according to Sir Richard's Universal System of co-equal 

 re-action, a retardation must also necessarily result in the rota- 

 tion of the sun, and the circumambient medium in its vicinity, 

 as this inherent principle of rotatory motion by the laws of me- 

 chanics ought to be retarded at its seat of action, and accele- 

 rated in the superior orbits of its rotation, till the angular velo- 

 cities in the orbicular motions of the planets, and the corre- 

 sponding strata of the gaseous medium become equalized. More- 

 over, as this theory is applicable to all other planetary systems, 

 the planets in each system ought ultimately to revolve round 

 their primaries, with equal angular velocities, or in equal times, 

 whatever may be their distances from their respective primaries; 

 as accelerations and retardations, natural results of the effects 

 of friction on the medium, must exist, till the above uniform 

 motion obtains. 



4. The planes of the orbits of the planets must also ajiproxi- 

 mate towards the plane of the sun's equator, from effects the re- 

 sult 



1 



