Leverrier, Urban Jean Joseph, French astronomer, born at St. Lô; distinguished in chemistry before he devoted himself to astronomy; rose to eminence in the latter science by a paper on the variations in the orbits of the planets, and was led to the discovery of the planet Neptune from perturbations in the orbit of the planet Uranus; he indicated the spot where the planet would be found, and it was actually discovered a few days after by Galle at Berlin (1811‒1877).
Definition taken from The Nuttall Encyclopædia, edited by the Reverend James Wood (1907)
Lever, Charles James * Levi, Leon