‘Doctor Green, younger of Doncaster’—probably the second of the three generations—had occasion, in December 1725, to advertise [Sidenote: 1702.] the Scottish community regarding his ‘menial servant and tumbler,’ Henry Lewis, who, he said, had deserted his service with a week’s prepaid wages in his pocket, and, as the doctor understood, ‘has resorted to Fife, or some of the north-country burghs, with design to get himself furnished with a play-fool, and to set himself up for a doctor experienced in the practice of physic and chirurgery.’ Doctor Green deemed himself obliged to warn Fife and the said burghs, whither he himself designed to resort in spring, against ‘the said impostor, and to dismiss him as such.’[316] We have this personage brought before us in an amusing light, in May 1731, in connection with the King’s College, Aberdeen. He had applied to this learned sodality for a diploma as doctor of medicine, ‘upon assurances given under his hand, that he would practise medicine in a regular way, and give over his stage.’ They had granted him the diploma accordingly. Finding, afterwards, that he still continued to use his stage, ‘the college, to vindicate their conduct in the affair, and at the same time, in justice to the public, to expose Mr Green his disingenuity, recorded in the Register of Probative Writs his letter containing these assurances.’ They also certified ‘that, if Mr Green give not over his stage, they will proceed to further resentment against him.’[317] Down to this time there was still an entire faith among the common sort of people in the medical properties of natural crystals, perforated stones, ancient jet ornaments, flint arrow-heads, glass beads, and other articles. The custom was to dip the article into water, and administer the water to the patient. The Stewarts of Ardvorlich still possess a crystal which was once in great esteem throughout Lower Perthshire for the virtues which it could impart to simple water. A flat piece of ivory in the possession of Campbell of Barbreck—commonly called _Barbreck’s Bone_—was sovereign for the cure of madness. This article is now deposited in the Museum of the Scottish Antiquaries in Edinburgh. The _Lee Penny_—a small precious stone, set in an old English coin, still possessed by the Lockharts of Lee—is another and highly noted example of such charms for healing.