DELISLE.
This artist, whose Christian name is unmentioned by his biographers, is included by Figuier among the emissaries or disciples of Lascaris, and much information concerning him will be found in the Histoire de la Philosophic Hermétique by his contemporary, Langlet du Fresnoy. He was a rustic of low birth in Provence, and he became acquainted with alchemical experiments by entering the service of a gentleman who was believed to be in possession of the stone. This gentleman is supposed to have received the prize from Lascaris. His operations, however, fell under suspicion, and he was forced to quit France. He retired into Switzerland, accompanied by Delisle, who is said to have assassinated him in the mountains, and to have thus got possession of a considerable quantity of the transmuting powder. However this may be, the servant, re-entered France in disguise, and about the year 1708 attracted general attention by changing lead and iron into silver and gold. He perambulated Languedoc, the Dauphiné, and Provence. At Sisteron he connected himself with the wife of a certain Alnys, who eventually shared his fortunes for the space of three years. His renown was increased by the apparent simplicity of his operations. He spread powder and oil over iron, thrust it into the fire, and brought it out a bar of gold. He distributed nails, knives, and rings partially transmuted, and was particularly successful in his experiments with common steel.
Cerisy, prior of New Castel, was employed by the Bishop of Senez to collect evidence concerning the truth of these marvels. An old gentleman offered Delisle a retreat at his castle of La Palud, where the alchemist, surrounded by admirers, received the daily visits of the curious. In Lenglet’s “History of Hermetic Philosophy,” there is a letter from the Bishop of Senez to the Minister of State and Comptroller-General of the Treasury at Paris, in which the prelate, who at first was incredulous, professes his inability to resist the evidence of actual transformation performed before himself and several vigilant witnesses, who took every precaution against deception. There is also the Report of M. de Saint-Maurice, President of the Mint at Lyons, who testifies to the following facts. That he was accompanied by Delisle into the grounds of the Chateau de Saint Auban in May 1710, where he uncovered a basket that was sunk in the ground. In the middle of this basket there was an iron wire, at the end of which he perceived a piece of linen with some object tied up in it. He took possession of this parcel, carried it into the dining-room of the Chateau, and by the direction of Delisle he exposed its contents—a blackish earth about half a pound in weight—to the rays of the sun. After a quarter of an hour the earth was distilled in a retort of a portable furnace, and when a yellow liquor was perceived to flow into the receiver, Delisle recommended that the recipient should be removed before a viscous oil then rising should flow into it. Two drops of this yellow liquor, projected on hot quicksilver, produced in fusion three ounces of gold, which were presented to the Master of the Mint. Afterwards three ounces of pistol bullets were melted and purified with alum and saltpetre. Delisle handed Saint-Maurice a small paper, desiring him to throw in a pinch of the powder and two drops of the oil used in the first experiment. This done, the matter was covered with saltpetre, kept fifteen minutes in fusion, and then poured out on a piece of iron armour, which reappeared pure gold, bearing all assays. The conversion to silver was made in the same manner with white powder, and the certificate which testifies to these occurrences was officially signed on the 14th December 1760.
A part of the gold manufactured in this manner by Delisle was subjected to refinement at Paris, where three medals were struck from it; one of them was deposited in the king’s cabinet. It bore the inscription Aurum Arte Factum.
With all his alchemical skill, Delisle was unable to read or write, and in disposition he was untractable, rude, and fanatical. He was invited to Court, but he pretended that the climate he lived in was necessary to the success of his experiments, inasmuch as his preparations were vegetable. The Bishop of Senez, suspecting him of unwillingness rather than inability, obtained a lettre de cachet, after two years of continual subterfuge on the part of the alchemist, who was thereupon arrested and taken on the road to Paris. During the journey, his guards, after endeavouring to extort his supposed riches, wounded him severely on the head, in which state, on his arrival at the Bastille, he was forced to begin his alchemical operations, but after a short time he persistently refused to proceed, tore continually the bandages from his wound in the frenzy of his desperation, and in the year following his imprisonment he poisoned himself.
His illegitimate son, Alnys, by some means inherited a portion of the powder from his mother. He wandered through Italy and Germany performing transmutations. On one occasion he made projection before the Duke of Richlieu, then French ambassador at Vienna, and who assured the Abbé Langlet that he not only saw the operation performed, but performed it himself, twice on gold and forty times on silver.
Alnys made a considerable collection of gold coins, ancient and modern, while on a journey through Austria and Bohemia. On his return to Aix he presented himself to the President of Provence, who desired him to call the next day. Alnys, suspecting an intention to arrest him, fled in the interim. He was afterwards imprisoned at Marseilles, whence he contrived to escape to Brussels. It was here, in 1731, that he gave some philosophic mercury to M. Percell, the brother of Langlet de Fresnoy, which mercury the recipient fermented imperfectly, but succeeded so far as to convert an ounce of silver into gold. The death of a certain M. Grefier shortly after some operations on corrosive sublimate, by which Alnys proposed to instruct him in alchemy, made it necessary for him to depart, and he was heard of no more.