I know very little about this stone or what curative power it has or was supposed to have. I only know that it was very much in request many years ago. It came to my father's possession on the death of his uncle, Rev. David Bowen, of Waunifor about the year 1847. In those days and for many years afterwards, mad dogs were very "fashionable," a summer never passing without one hearing of a great many people having been bitten, and, consequently, a great many people called at Gilfachwen for a dose of the Llaethfaen, and whether it had curative or preventive powers or not, none of the patients were ever known to be attacked with hydrophobia. People who had been bitten would travel immense distances in order to get the stone. I remember a whole family, father, mother, and four or five children, who had been bitten by the same dog, arriving at Gilfachwen early one summer morning, before anyone was up, having travelled all night in order to be treated with the stone cure; they went away very happy and relieved in mind, after each had received a dose. It has not been used now for many years. The last instance I recollect was this: two men employed in a Brewery at Llanon, on the Cardigan coast, had been bitten by the same dog, supposed to be mad, arrived here on a Sunday afternoon; poor fellows, they looked utterly miserable and wretched; they had spent nearly a week enquiring for the stone, and meanwhile, had been advised by some old woman who was supposed to be learned in some ailments, not to eat any food; this advice they very foolishly followed, and when they arrived here, they were truly in a terrible plight. After giving each of them a dose of the Llaethfaen and a good meal they went away happy and never heard of them since. JOHN LLOYD, Gilfachwen.