This was followed (1813-1818) by his magnum opus, the Storia della scultura dal suo risorgimento in Italia al secolo di Napoleone, in the composition of which he had been encouraged and advised by Giordano and Wilhelm Schlegel (1767-1845).
Brown Globe, including Magnum Bonum; White Globe; Yellow Danvers; White Spanish, in its several forms; Trebons, the finest variety for autumn sowing, attaining a large size early, ripening well, and keeping good till after Christmas; Ailsa Craig; Ronsham Park Hero; James's Keeping; Cranston's Excelsior; Blood Red, strong-flavoured.
The Stanwick nectarine, so apt to crack and not to ripen when worked in the ordinary way, is said to be cured of these propensities by being first budded close to the ground, on a very strong-growing Magnum Bonum plum, worked on a Brussels stock, and by then budding the nectarine on the Magnum Bonum about a foot from the ground.
Much of Cudworth's work still remains in manuscript; A Treatise concerning eternal and immutable Morality was published in 1731; and A Treatise of Freewill, edited by John Allen, in 1838; both are connected with the design of his magnum opus, the Intellectual System.
He wrote abundantly in prison; his magnum opus was a history of Sweden in Latin, but he has also left, in Swedish, two important rhyme-chronicles.