At last he retired from the parsonage of Lustleigh, discountenanced and discouraged, to a small farm of his own, called Willmead. His curacy was now advanced to £60, and he had not to keep up the large rectory. At Willmead he amused his leisure hours with gardening. He moved the granite boulders, arranged terraces among the rocks, and formed a herbaceous garden, in which he took the liveliest interest. Whilst here he invented a diving-bell, and prepared his contrivance for use to raise the guns and other property lost in the _Royal George_ (1782), but he had not the means to cause a model of his machine to be made, and his idea was taken up and carried out by others. But Davy was by no means the first inventor of the diving-bell, Dr. Halley had made one in or about 1720; it was of wood covered with lead, and air was supplied through barrels attached to it. But the plan proposed by Davy was far in advance of this, and was, in fact, practically that of the diving-bell as now in use. It was not till 1817 that the _Royal George_ was surveyed by means of a diving-bell, and portions of the cargo, the guns, etc., were not raised till 1839-42. At length, at the age of eighty-two, Davy was presented in 1825 to the vicarage of Winkleigh, and that not by either the Bishop or the Dean and Chapter. But this preferment coming so late in life was rather a cruelty to him than a favour granted. It removed him from his garden, in which he had spent such happy hours, and which was crowded with his collections of rare plants procured with difficulty and from distances, from all his little contrivances, and from the comforts of his own residence. He had to shift quarters in December, caught a chill in the raw damp vicarage to which he removed, and after holding the benefice for five months, expired there on 13 June, 1826, and was laid in the chancel of Winkleigh. After his death three volumes of extracts from his _System of Divinity_ were published, together with a Memoir, by the Rev. C. Davy, Exeter, 1827, and fell as flat as had the twenty-six volumes from which these withered arguments were culled, and no man--not a theologian even--would think it worth his while now to read a dozen pages of the work. But the intention was good--he was persistent in carrying it out, he had the honour and glory of God before his eyes, and he worked for that, and certainly will receive the commendation, “Well done, good and faithful servant, enter thou into the joy of thy Lord,” though bishops and deans and archdeacons and the well-beneficed clergy, “bene nati, bene vestiti et moderate docti,” showed him the cold shoulder here below.