their relation to the Progress of Science. 175 of Wilkins in the Mastership of Trinity, and on Mr. John Nid, a senior fellow, who assisted him in his botanical work, were thus delivered, though he was not ordained till 1660. These sermons entitle him to rank as the Paley, if not the Butler, of his age, as one of the chiefs of that school of Latitudinarian Theology, of which Hales and Chillingworth were the founders, and Burnet, Tillotson, and Butler the future exponents,—a school characterised " by their oppo- sition to dogma, by their preference of reason to tradition, whether of the Bible or the Church, by their basing religion on a natural Theology, by their aiming at Tightness of life rather than at correctness of opinion, by their advocacy of toleration and comprehension as the grounds of Christian unity." Between 1657 and 1660 Ray was chosen to various honour- able offices in his college, being Junior Dean in 1658, and Steward in 1659, and in December, 1660, in which month he was ordained both deacon and priest by Sanderson, Bishop of Lincoln. To this period belongs the first of those tours, mainly botanical in their object, of which we possess Kay's own diaries or itineraries. In August and September, 1658, he travelled alone through the Midland Counties and North Wales ; and in 1660 appeared his first published work, the 'Catalogus plantarum circa Cantabrigiam nascentium,' a small duodecimo enumerating only 626 species in the alpha- betical order of their Latin names, but marking an epoch in the history of British Botany, no less than in the life of its author. It was the first local catalogue issued in England, and is remarkable for the care with which the synonymy is collected from Gerard, Parkinson, the Bauhins, and others, for the notes on the uses and varieties of plants, the structure of the flower, &c, and for the descriptions of new species. Botany was at this date in the same empiric stage as that in which William Turner had found it in 1538: Gerard, John- son, Parkinson, and others had published herbals, mere un- systematic catalogues of but roughly discriminated species from all parts of the world, with copious medical disquisitions, on their real or imaginary uses as drugs, gathered out of Dioscorides, or still more largely out of Dodoens' Flemish