Twenty years after the death of Peter Woulfe, Sir Richard Phillips visited "an alchemist" named Kellerman, at the village of Lilley, between Luton and Hitchin. He was believed by some of his neighbours to have discovered the Philosopher's Stone and the Universal Solvent. His room was a realisation of the well-known picture of Tenier's Alchemist. The floor was strewed with retorts, crucibles, alembics, jars, and bottles of various shapes, intermingled with old books. He gave Sir Richard a history of his studies, mentioned some men in London who, he alleged, had assured him that they had made gold; that having, in consequence, examined the works of the ancient alchemists, and discovered the key which they had studiously concealed from the multitude, he had pursued their system under the influence of new lights; and, after suffering numerous disappointments, owing to the ambiguity with which they described their processes, he had at length happily succeeded; had made gold, and could make as much more as he pleased, even to the extent of paying off the National Debt in the coin of the realm! Killerman then enlarged upon the merits of the ancient alchemists, and on the blunders and assumptions of modern chemists. He quoted Roger and Francis Bacon, Paracelsus, Boyle, Boerhaave, Woulfe, and others to justify his pursuits. As to the term Philosopher's Stone, he alleged that it was a mere figure to deceive the vulgar. He appeared to give full credit to the silly story of Dee's finding the Elixir at Glastonbury, by means of which, as he said, Kelly for a length of time supported himself in princely splendour. Kellerman added, that he had discovered the _blacker than black_ of Apollonius Tyanus: it was itself "the powder of projection for producing gold." It further appeared that Kellerman had lived in the premises at Lilley for twenty-three years, during fourteen of which he had pursued his alchemical studies with unremitting ardour, keeping eight assistants for superintending his crucibles, two at a time, relieving each other every six hours; that he had exposed some preparations to intense heat for many months at a time; but that all except one crucible had burst, and that, Kellerman said, contained the true "blacker than black." One of his assistants, however, protested that no gold had ever been found, and that no mercury had ever been fixed; for he was quite sure Kellerman could not have concealed it from his assistants; while, on the contrary, they witnessed his severe disappointment at the result of his most elaborate experiments. Of late years there have been some strange revivals of alchemical pursuits. In 1850 there was printed in London a volume of considerable extent, entitled, _A Suggestive Inquiry into the Hermetic Mystery_--the work of a lady, by whom it has been suppressed; we have seen it described as "a learned and valuable book."