Sir George Darwin, who died last Saturday at Cambridge, where
he had held the Plumian Professorship of Astronomy for nearly thirty years, was the second son of Charles Darwin.
In no family has hereditary genius manifested itself more signally, and in the special field to which he devoted himself with such brilliant results—the investigation of orbits, tides, and the history of the earth—he showed a patience and deter- mination comparable to those of his illustrious father. Sir George Darwin, who was President of the British Association in 1905, a post in which he was succeeded by his brother Francis three years later, endeared himself to his many friends by his personal charm and his wide range of interests. Only six months ago he told the present writer that some of the happiest hours of his life had been spent in the Cambridge tennis court.