In 1810, Sir Humphry Davy asked him to offer himself as a candidate for the fellowship of the Royal Society , but Dalton declined, possibly for financial reasons. In 1822 he was proposed without his knowledge, and on election paid the usual fee. Six years previously he had been made a corresponding member of the French Académie des Sciences , and in 1830 he was elected as one of its eight foreign associates in place of Davy. In 1833, Earl Grey 's government conferred on him a pension of £ 150, raised in 1836 to £300. Dalton was elected a Foreign Honorary Member of the American Academy of Arts and Sciences in 1834.