But the work in the Department done by the Master-General, Sir William Compton, although not of a demonstrative character, was good and useful, and prepared the way for the reformations introduced by his more able successor, Lord Dartmouth. The Master-Gunners of England were now chosen from a higher social grade than before. In 1660 Colonel James Weymes held the appointment, followed in 1666 by Captain Valentine Pyne, and in 1677 by Captain Richard Leake. A new appointment was created for Captain Martin Beckman—that of Chief Firemaster. His skill in his department was rewarded by knighthood, and he held the appointment, not merely until the Revolution of 1688, but also under William III., having apparently overcome any scruples as to deserting his former masters. A Surveyor- General of the Ordnance, Jonas Moore by name, was appointed in 1669, who afterwards received permission to travel on the Continent to perfect himself in Artillery studies, for which purpose he received the sum of 100_l._ a year. The names of the Ordnance in the various fortifications in England during the reign of Charles II. were as follows:— BRASS ORDNANCE. Cannon of 8. Cannon of 7. Demi-cannon. 24 prs. Culverings. 12 prs. Demi-culverings. 8 prs. 6 prs. Sakers. Mynions. 3 prs. Falcon. Falconett. Brass baces of 7 bores. Inch and ¼ bore, and 7 other sizes. IRON ORDNANCE. Cannon of 7. Demi-cannon. 24 prs. Culverings. 12 prs. Demi-culverings. 8 prs. 6 prs. Sakers. Mynions. 3 prs. Falcon. Falconett. Rabonett. BRASS MORTAR PIECES. 18½ in.[5] 16½ in. 13¼ in. 9 in. 8¾ in. 8 in. 7¾ in. 7¼ in. 6½ in. 6¼ in. 4½ in. 4¼ in. IRON MORTAR PIECES. 12½ in. 4¼ in. _Taken from Harl. MS. 4244._ The reader will observe the immense varieties of mortars, and the large calibres, compared with those of the present day. They were much used on board the bomb-vessels; but it is difficult to see the advantage of so many small mortars, varying so slightly in calibre.