to Louis XIV., thinking the "philosopher" dreaded foul play, twice sent him a safe conduct under the king's seal; but Delisle still refused. Upon this, Desmarets wrote to the Bishop of Senés for his real opinion as to these famous transmutations. The following was the answer of that prelate:
"Copy of a report addressed to M. Desmarets, Comptroller-General of the Finances to His Majesty Louis XIV., by the Bishop of Senés, dated March 1709.
"Sir,—A twelvemonth ago, or a little more, I expressed to you my joy at hearing of your elevation to the ministry; I have now the honour to write you my opinion of the Sieur Delisle, who has been working at the transmutation of metals in my diocese. I have, during the last two years, spoken of him several times to the Count de Pontchartrain, because he asked me; but I have not written to you, sir, or to M. de Chamillart, because you neither of you requested my opinion upon the subject. Now, however, that you have given me to understand that you wish to know my sentiments on the matter, I will unfold myself to you in all sincerity, for the interests of the king and the glory of your ministry.
"There are two things about the Sieur Delisle which, in my opinion, should be examined without prejudice: the one relates to his secret; the other, to his person; that is to say, whether his transmutations are real, and whether his conduct has been regular. As regards the secret of the philosopher's stone, I deemed it impossible, for a long time; and for more than three years I was more mistrustful of the pretensions of this Sieur Delisle than of any other person. During this period I afforded him no countenance; I even aided a person, who was highly recommended to me by an influential family of this province, to prosecute Delisle for some offence or other which it was alleged he had committed. But this person, in his anger against him, having told me that he had himself been several times the bearer of gold and silver to the goldsmiths of Nice, Aix, and Avignon, which had been transmuted by Delisle from lead and iron, I began to waver a little in my opinions respecting him. I afterwards met Delisle at the house of one of my friends. To please me, the family asked Delisle to operate before me, to which he immediately consented. I offered him some iron nails, which he changed into silver in the chimney-place before six or seven credible witnesses. I took the nails thus transmuted, and sent them by my almoner to Imbert, the jeweller of Aix, who, having subjected them to the necessary trial, returned them to me, saying they were very good silver. Still, however, I was not quite satisfied. M. de Pontchartrain hav-
