became an expert draughtsman. Trade being very slack in Glasgow at the time, Clement, after about a year's stay in the place, accepted a situation with Messrs. Leys, Masson, and Co., of Aberdeen, with whom he began at a guinea and a half a week, from which he gradually rose to two guineas, and ultimately to three guineas. His principal work consisted in designing and making power-looms for his employers, and fitting them up in different parts of the country. He continued to devote himself to the study of practical mechanics, and made many improvements in the tools with which he worked. While at Glasgow he had made an improved pair of die-stocks for screws; and, at Aberdeen, he made a turning-lathe with a sliding mandrill and guide-screws, for cutting screws, furnished also with the means for correcting guide-screws. In the same machine he introduced a small slide rest, into which he fixed the tool for cutting the screws,--having never before seen a slide rest, though it is very probable he may have heard of what Maudslay had already done in the same direction. Clement continued during this period of his life an industrious self-cultivator, occupying most of his spare hours in mechanical and landscape drawing, and in various studies. Among the papers left behind him we find a ticket to a course of instruction on Natural Philosophy given by Professor Copland in the Marischal College at Aberdeen, which Clement attended in the session of 1812-13; and we do not doubt that our mechanic was among the most diligent of his pupils. Towards the end of 1813, after saving about 100L. out of his wages, Clement resolved to proceed to London for the purpose of improving himself in his trade and pushing his way in the world. The coach by which he travelled set him down in Snow Hill, Holborn; and his first thought was of finding work. He had no friend in town to consult on the matter, so he made inquiry of the coach-guard whether he knew of any person in the mechanical line in that neighbourhood. The guard said, "Yes; there was Alexander Galloway's show shop, just round the corner, and he employed a large number of hands." Running round the corner, Clement looked in at Galloway's window, through which he saw some lathes and other articles used in machine shops. Next morning he called upon the owner of the shop to ask employment. "What can you do?" asked Galloway. "I can work at the forge," said Clement. "Anything else?" "I can turn." "What else?" "I can draw." "What!" said Galloway, "can you draw? Then I will engage you." A man who could draw or work to a drawing in those days was regarded as a superior sort of mechanic. Though Galloway was one of the leading tradesmen of his time, and had excellent opportunities for advancement, he missed them all. As Clement afterwards said of him, "He was only a mouthing common-council man, the height of whose ambition was to be an alderman;" and, like most corporation celebrities, he held a low rank