RAUF BIGOD, who was appointed on 2nd June, 1483, "for life." His life does not, however, seem to have been a very long one, for we find Sir RICHARD GYLEFORD, who was appointed in 1485. Sir SAMPSON NORTON was undoubtedly Master of the Ordnance, appointed in 1513, as has been proved by extant MSS. The next one about whom there is any certainty would appear to be the one who heads 'Kane's List'— Sir THOMAS SEYMOUR, who was appointed about 1537. Other lists show Sir Christopher Morris as Master at this time; but there seems little doubt that he was merely Lieutenant of the Ordnance, although a distinguished soldier, and frequently in command of the Artillery on service. If one may credit 'Dugdale's Baronage,' the next in order was Sir THOMAS DARCIE (afterwards Baron Darcie), appointed in 1545: but if so, he merely held it for a short time, for we find him succeeded by Sir PHILIP HOBY, who was appointed in 1548. 'Grose's List' and others interpolate Sir Francis Fleming, as having been appointed in 1547; but this is undoubtedly an error, and his name wisely rejected by the author of 'Kane's List,' where it is placed, as it should be, in the list of Lieutenants of the Ordnance. There is a folio of Ordnance accounts still in existence, extending over the period between 29th March, 1547, and the last day of June, 1553, signed by Sir Francis Fleming, as _Lieutenant_ of the Ordnance. The next in rotation in the best lists is Sir RICHARD SOUTHWELL, Knight, shown by 'Kane's List' as appointed in February, 1554, and, by certain indentures and Ordnance accounts which are still extant, as being Master of the Ordnance, certainly in 1557 and 1558. The next Master held the appointment for many years. He was AMBROSE DUDLEY, Earl of Warwick, and can be proved from indentures in the possession of the late Craven Ord, Esq., which are probably still in existence, and from which extracts were made in 1820 by the compiler of a manuscript now in the Royal Artillery Library, to have been appointed on the 19th February, 1559, and to have held the office until 21st February, 1589, over thirty years. Possibly owing to the difficulty of finding any one ready to undertake the duties of one who had had so much experience—a difficulty which occurred more than once again—the office was placed in commission after 1589, probably until 1596. From 'Burghleigh's State Papers' we learn that the Commissioners were, the LORD TREASURER, the LORD HIGH ADMIRAL, the LORD CHAMBERLAIN, and VICE-CHAMBERLAIN SIR J. FORTESCUE. On 19th March, 1596, ROBERT, EARL OF ESSEX, was appointed Master of the Ordnance, and held the appointment until removed by Elizabeth, in 1600. No record of a successor occurs until the 10th September, 1603, when CHARLES, EARL OF DEVONSHIRE, was appointed. He died in 1606, and was succeeded by