and for the great care necessary, far the least mistake will spoil all. The transmutation of Mars is an easy and merely mechanical process, but that of gold is philosophical in the highest degree. The gold produced will be equal to that used in the Venetian sequins. You must reflect, my lord, that I am giving you information which will permit you to dispense with me, and you must also reflect that I am confiding to you my life and my liberty.
"The step I am taking should insure your life-long protection, and should raise you above that prejudice which is entertained against the general mass of alchemists. My vanity would be wounded if you refuse to distinguish me from the common herd of operators. All I ask you is that you will wait till we meet before undertaking the process. You cannot do it by yourself, and if you employ any other person but myself, you will betray the secret. I must tell you that, using the same materials, and by the addition of mercury and nitre, I made the tree of projection for the Marchioness d'Urfe and the Princess of Anhalt. Zerbst calculated the profit as fifty per cent. My fortune would have been made long ago, if I had found a prince with the control of a mint whom I could trust. Your character enables me to confide in you. However, we will come to the point.
"You must take four ounces of good silver, dissolve in aqua fortis, precipitate secundum artem with copper, then wash in lukewarm water to separate the acids; dry, mix with half an ounce of sal ammoniac, and place in a suitable vessel. Afterwards you must take a pound of alum, a pound of Hungary crystals, four ounces of verdigris, four ounces of cinnabar, and two ounces of sulphur. Pulverise and mix, and place in a retort of such size that the above matters will only half fill it. This retort must be placed over a furnace with four draughts, for the heat must be raised to the fourth degree. At first your fire must be slow so as to extract the gross phlegm of the matter, and when the spirit begins to appear, place the receiver under the retort, and Luna with the ammoniac salts will appear in it. All the joinings must be luted with the Philosophical Luting, and as the spirit comes, so regulate your furnace, but do not let it pass the third degree of heat.
"So soon as the sublimation begins then boldly open your forth vent, but take heed that that which is sublimed pass not into the receiver where is your Luna, and so you must shut, the mouth of the retort closely, and keep it so for twenty-four hours, and then take off your fastenings, and allow the distillation to go on. Then you must increase your fire so that the spirits may pass, over, until the matter in the retort is quite desiccated. After this operation has been performed three times, then you shall see, the gold appear in the retort. Then draw it forth and melt it, adding your corpus perfectum. Melt with it two ounces of gold, then lay it in water, and you shall find four ounces of pure gold.
"Such my lord, is the gold mine for your mint of Mitau, by which, with the assistance of a manager and four men, you can assure yourself a revenue of a thousand ducats a week, and double, and quadruple that sum, if your highness chooses to increase the men and the furnaces. I ask your highness to make me your manager. But remember it must be a State secret, so burn this letter, and if your highness would give me any reward in advance, I only ask you to give me your affection and esteem. I shall be happy if I have reason to believe that my master will also be my friend. My life, which this letter places in your power, is ever at your service, and I know not what I shall do if I ever have cause to repent having disclosed my secret. I have the honour to be, etc."
In whatever language this letter may have been translated, if its sense run not as above, it is not my letter, and I am ready to give the lie to all the Mirabeaus in the world. I have been called an exile, but wrongfully, for a man who has to leave a country by virtue of a 'lettre de cachet' is no exile. He is forced to obey a despotic monarch who looks upon his kingdom as his house, and turns out of doors anyone who meets with his displeasure.
As soon as my purse swelled to a respectable size, I left Augsburg, The date of my departure was June 14th, 1767. I was at Ulm when a courier of the Duke of Wurtemburg's passed through the town with the news that his highness would arrive from Venice in the course of five or six days. This courier had a letter for me. It had been entrusted to him by Prince Charles of Courland, who had told the courier that he would find me at the "Hotel du Raisin," in Augsburg. As it happened, I had left the day before, but knowing the way by which I had gone he caught me up at Ulm. He gave me the letter and asked me if I were the same Casanova who had been placed under arrest and had escaped, on account of some gambling dispute with three officers. As I was never an adept in concealing the truth, I replied in the affirmative. A Wurtemburg officer who was standing beside us observed to me in a friendly manner that he was at Stuttgart at the time, and that most people concurred in blaming the three officers for their conduct in the matter.
Without making any reply I read the letter, which referred to our private affairs, but as I was reading it I resolved to tell a little lie—one of those lies which do nobody any harm.
"Well, sir," I said to the officer, "his highness, your sovereign, has listened to reason at last, and this letter informs me of a reparation which is in every way satisfactory. The duke has created me his private secretary, with a salary of twelve hundred a year. But I have waited for it a long time. God knows what has become of the three officers!"
"They are all at Louisburg, and– -is now a colonel."
"Well, they will be surprised to hear my news, and they will hear it to-morrow, for I am leaving this place in an hour. If they are at Louisburg, I shall have a triumph; but I am sorry not to be able to accompany you, however we shall see each other the day after tomorrow."
I had an excellent night, and awoke with the beautiful idea of going to Louisburg, not to fight the three officers but to frighten them, triumph over them, and to enjoy a pleasant vengeance for the injury they had done me. I should at the same time see a good many old friends; there was Madame Toscani, the duke's mistress; Baletti, and Vestri, who had married a former mistress of the duke's. I had sounded the depths of the human heart, and knew I had nothing to fear. The duke was on the point of returning, and nobody would dream of impugning the truth of my story. When he actually did arrive he would not find me, for as soon as the courier announced his approach I should go away, telling everybody that I had orders to precede his highness, and everybody would be duped.
I never had so pleasant an idea before. I was quite proud of it, and I should have despised myself if I had failed to carry it into effect. It would be my vengeance on the duke, who could not have forgotten the terrible letter I had written him; for princes do not forget small injuries as they forget great services.
I slept badly the following night, my anxiety was so great, and I reached Louisburg and gave my name at the town gates, without the addition of my pretended office, for my jest must be matured by degrees. I went to stay at the posting-inn, and just as I was asking for the address of Madame Toscani, she and her husband appeared on the scene. They both flung their arms around my neck, and overwhelmed me with compliments on my wounded arm and the victory I had achieved.
"What victory?"
"Your appearance here has filled the hearts of all your friends with joy."
"Well, I certainly am in the duke's service, but how did you find it out?"
"It's the common talk. The courier who gave you the letter has spread it all abroad, and the officer who was present and arrived here yesterday morning confirmed it. But you cannot imagine the consternation of your three foes. However, we are afraid that you will have some trouble with them, as they have kept your letter of defiance given from Furstenberg."
"Why didn't they meet me, then?"
"Two of them could not go, and the third arrived too late."
"Very good. If the duke has no objection I shall be happy to meet them one after another, not three all at once. Of course, the duel must be with pistols; a sword duel is out of the question with my arm in a sling."
"We will speak of that again. My daughter wants to make peace before the duke comes, and you had better consent to arrangements, for there are three of them, and it isn't likely that you could kill the whole three one after the other."
"Your daughter must have grown into a beauty."
"You must stop with us this evening; you will see her, for she is no longer the duke's mistress. She is going to get married."
"If your daughter can bring