text:  "The speculation is " we may as well quote throughout Mr Mill's words "that the atmosphere of the sun originally extended to the present limits of the solar system: from which by the process of cooling it has contracted to its present dimensions; and since by the general principles of mechanics the rotation of the sun and its accompanying atmosphere must increase as rapidly as its volume diminishes the increased centrifugal force generated by the more rapid rotation overbalancing the action of gravitation would cause the sun to abandon successive rings of vaporous matter which are supposed to have condensed by cooling and to have become our planets