On the formation of planets from a solar nebula.

Effects that will bring the whole of the dust component of the nebula into the form of an extremely thin disk in the equatorial plane of the system are pointed out, and the final thickness of the dust-disk is investigated. Aspects of the gravitational development of the dust-disk are discussed together with the range of gravitational influence of a planet, the rate of mass increase of a planet, questions of the multiple formation of planets, the angular momentum of planets formed, the angular momentum of a planet growing from the dust disk, the rate of addition of energy to the planet, and problems of the formation of the four outer planets.