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Ever since man perceived that the solar system is a cohort of planets revolving around a central sun, at different distances but in the same direction and in almost the same plane, he has wondered how ...

THE object of the present treatise is to establish in a modified form the nebular theory of Laplace, by the introduction of some original views which have long occupied the attention of the author.

DR. JEANS'S analysis of the modes of rupture of fluid masses under the influence of excessive rotation or of the gravitation of other bodies, earned him the Adams prize of the University of Cambridge ...