As late as 1825, twenty years after the death of Peter Woulfe, who was thought to be the last of the true believers in alchemy, Sir Richard Phillips visited an alchemist at Lilley, near Hitchin, named Kellerman, who was believed by some of his neighbours to have discovered the philosopher's stone, and the universal solvent! His room was a realization of Tenier's "Alchemist." The floor was strewed with retorts, crucibles, alembics, jars, and bottles of various shapes, inter-mingled with old books. This worthy had not only bettered all the work of his predecessors, but had, after repeated failures, at last made gold; and, what was more, he could make as much more as he pleased, even to the extent of paying off the National Debt! In justification of his singular pursuits, Kellerman quoted Roger and Francis Bacon, Paracelsus, Boyle, Boerhave, Woulfe, and others, and claimed that he had discovered the "blacker than black" of Appollonious Tyanus, which was the powder of projection for producing gold! It further appeared that Kellerman had lived in these premises at Lilley twenty-three years, during fourteen of which he had pursued his alchemical studies, keeping eight assistants to superintend his crucibles, two at a time relieving each other every six hours; that he had exposed some preparation to intense heat for many months at a time, but that all his crucibles had burst except one, which Kellerman said contained the "Blacker than Black." One of his assistants, however, protested that no gold had ever been found; and so, even persevering old Kellerman, the last of his race, who dared to speculate with the iron horse just behind him, disappears from the scene, discredited by the Phillistines, who calculate but never dream! {103} CHAPTER X. TRADE, AGRICULTURE AND MARKET ORDINARIES. One of the most interesting, as well as significant things about old-time studies, is the evolution of industry, from the stage, when each domestic hearth was a factory of some sort, to vast cotton mills and iron foundries. Time was when the wool from the sheep's back was made into cloth in every house in Royston, then the finishing processes of fulling and dyeing were made a business of elsewhere, then with the introduction of machinery the hand-loom disappeared from our cottages to special centres; next the spinning disappeared; then the combing, and last of all the wool-sorting went too, leaving nothing but sheep shearing of what was a complete local industry, with as many centres as there were formerly houses to work in and families to work. The only thing that is dimly visible in these Glimpses, of that universal woollen industry, is the picturesque figure of our great-grand-mother at the spinning wheel--not merely as a piece of domestic economy, but as a wage-earning tool employing children as well as adults, just as straw plaiting became in this and the adjoining Bedfordshire district when the spinning industry disappeared.