of a powder unknown to him; it was the bismuth. My
merry laugh kept company with his astonishment, and calling one of the
servants of the inn I sent him to the druggist to sell the mercury that
was left. He returned in a few minutes and handed me fifteen carlini.

The Greek, whose surprise was complete, asked me to give him back his own
flagon, which was there quite full, and worth sixty carlini. I handed it
to him with a smile, thanking him for the opportunity he had afforded me
of earning fifteen carlini, and took care to add that I should leave for
Salerno early the next morning.

"Then we must have supper together this evening," he said.

During the afternoon we took a walk towards Mount Vesuvius. Our
conversation went from one subject to another, but no allusion was made
to the mercury, though I could see that the Greek had something on his
mind. At supper he told me, jestingly, that I ought to stop in Portici
the next day to make forty-five carlini out of the three other flagons of
mercury. I answered gravely that I did not want the money, and that I had
augmented the first flagon only for the sake of procuring him an
agreeable surprise.

"But," said he, "you must be very wealthy."

"No, I am not, because I am in search of the secret of the augmentation
of gold, and it is a very expensive study for us."

"How many are there in your company?"

"Only my uncle and myself."

"What do you want to augment gold for? The augmentation of mercury ought
to be enough for you. Pray, tell me whether the mercury augmented by you
to-day is again susceptible of a similar increase."

"No, if it were so, it would be an immense source of wealth for us."

"I am much pleased with your sincerity."

Supper over I paid my bill, and asked the landlord to get me a carriage
and pair of horses to take me to Salerno early the next morning. I
thanked the Greek for his delicious muscatel wine, and, requesting his
address in Naples, I assured him that he would see me within a fortnight,
as I was determined to secure a cask of his Cerigo.

We embraced each other, and I retired to bed well pleased with my day's
work, and in no way astonished at the Greek's not offering to purchase my
secret, for I was certain that he would not sleep for anxiety, and that I
should see him early in the morning. At all events, I had enough money to
reach the Tour-du-Grec, and there Providence would take care of me. Yet
it seemed to me very difficult to t