122 of the Newtonian system, &c.

ton, every single satellite of Saturn must: gravi-tate towards the other four ; the other fourtowards the fifth ; all the five towards Saturn ;and Saturn and all of them towards the fun,according to a particular law: what an immenseskill in geometry must have been requisite tounravel the intricacies of so many different rela-tions. It was a daring attempt to undertake it;and one cannot perceive, without amazement,that from so abstracted a theory, formed of somany particular theories, and each of them per-plexed with innumerable difficulties, conclusionsshould always arise exactly conformable to factand experience.” These are, certainly, such in-stances of genius and penetration, that, whentaken in their fullest extent, the idea of the poet\vill scarcely be thought too extravagant.

Nature and Nature’s laws lay hid in night,

God said, let Newton be, and all was light.

Pope,

LET-