The rolls of parliament and the books of the Privy Council contain about this time abundant proofs of the tendency to manufacturing enterprise. Sir John Shaw of Greenock and others were encouraged in a proposed making of salt ‘after a new manner.’ There was a distinct act in favour of certain other enterprising persons who designed to make ‘salt upon salt.’ John Hamilton, merchant-burgess of Edinburgh, was endowed with privileges for an invention of his, for mills and engines to sheel and prepare barley. James Melville of Halhill got a letter of gift to encourage him in a manufacture of sail-cloth. Inventions for draining of mines are frequently spoken of. William Morison of Prestongrange was desirous of setting up a glass-work at a place within the bounds of his estate, called Aitchison’s Haven or New Haven, ‘for making of all sorts of glass, as bottles, vials, drinking, window, mirror, and warck [?] glasses.’ ‘In order thereto, he conduced with strangers for carrying on the said work, who find great encouragement for the same, within the said bounds.’ On his petition, this proposed work, with the workmen and stock employed, was endowed by the Privy Council (April 27, 1697) with the privileges accorded to manufactories by acts of parliament. Connected with Prestongrange in this business was a French refugee named Leblanc, who had married a Scotchwoman, and got himself entered as a burgess and guild-brother of Edinburgh, designing to spend the remainder of his life in the country of his adoption. It was his part to polish the glass for the making of mirrors, an art never before practised in Scotland; and this business he carried on in a workshop in the Canongate. It was found, however, that ‘the glasses must have mullers and head-pieces of timber, and sometimes persons of honour and quality desired also tables, drawers, and stands agreeable to the glass for making up a suit.’ Leblanc offered to employ for this work the wrights of the corporation of the Canongate; but they plainly acknowledged that they could not execute it. He was obliged to employ wrights of Edinburgh. Then came forth the same Canongate wrights, with complaints of this infraction of their rights. It was a plain case of the dog in the manger—and the consequence was the stoppage of a branch of industry of some importance to the community. On Leblanc’s petition, the Privy [Sidenote: 1696.] Council gave him permission to make up the upholstery work connected with his mirrors, on the simple condition of his making a first offer of it to the wrights of the Canongate.