As early as 1338 Thomas de Boneston covenants by indenture to glaze two windows at his own proper cost, find all the glass, pay the workmen their wages for the finishing thereof, and Thomas de Ludham, the _custos_ of the fabric, became bound to pay him twenty-two marks sterling for the same. Another indenture of the same date was made between Thomas de Boneston and Robert: for making a window at the west gable of the cathedral church, the said Robert is to find all sorts of glass and be paid 6d. per foot for white and 12d. per foot for coloured glass. In Archbishop Melton's register of the same year, the Archbishop pays to Master Thomas Sampson 100 marks for glasswork of the window at the west end of the church lately constructed--_i.e._, the great west window. In 1361 Agnes de Holm leaves 100s. to the fabric for a glass window containing figures of St. James the Apostle and St. Catherine. In 1371 the name of William de Auckland appears as Vitriarius, and it would seem that the Dean and Chapter always maintained such an official, with a working staff to execute what glass might be required. From time to time great stores of glass and lead seem to have been accumulated, and there are constant entries of expenses occurring in wages and materials, _e.g._, white glass for the great windows of the new choir, "coloured glass," "old coloured glass," "glass of small value." In 1400 John Burgh seems to have been the glazier at 27s. 5d. per annum, with Robert, his assistant, at 25s. In 1419 John Glasman, of Ruglay, supplies three sheets of white glass. John Chambre is glazier in 1421. In 1443, Thomas Schirley with his assistant William; Thomas Cartmell in 1444; Matthew Pete with two assistants, Thomas Mylett and William Cartmell, in 1447; Matthew Pete in 1456, when he seems to have employed several assistants, Thomas Clerk, Thomas Shirwynd, Thomas Coverham, William Franklan, Robert Hudson, &c., with much expenditure for "yalow glass," &c.; John Pety, 1472; Robert Pety, 1509, the last member of a family which had long filled the office. Richard Taylor supplies two chests of Rennyshe glass in 1530; William Matthewson, of Hull, twenty-two wisps of Borgandie glass; and in 1538, one cradle of Normandie glass. The indenture with John Thornton for glazing the great east window is still extant; he is to "complete it in three years, pourtray with his own hands the histories, images, and other things to be painted on the same. He is to provide glass and lead, and workmen, and receive four shillings per week, five pounds at the end of each year, and, after the work is completed, ten pounds for his reward."