to be known as the Lambelle
Explosive. The secret would be safe with the French Government."

"I am not so sure of that," returned the Minister. "Some unscrupulous
man may become Minister of War, and may use his knowledge to put
himself in the position of Dictator. An unscrupulous man in the
possession of such a secret would be invincible."

"What you say," replied the inventor, "is undoubtedly true; yet I am
determined that the name of Lambelle shall go down in history coupled
with the most destructive agent the world has ever known, or will know.
If the Government of France will build for me a large stone structure
as secure as a fortress, I will keep my secret, but will fill that
building with bottles like this, and then----"

"I do not see," said the Minister, "that that would lessen the danger,
if the unscrupulous man I speak of once became possessed of the keys;
and, besides, the mere fact that such a secret existed would put other
inventors upon the track, and some one else less benevolent than
yourself would undoubtedly make the discovery. You admitted a moment
ago that the chances were a future investigator would succeed in
getting the right ingredients together, even without the knowledge that
such an explosive existed. See what an incentive it would be to
inventors all over the world, if it were known that France had in its
possession such a fearful explosive! No Government has ever yet been
successful in keeping the secret of either a gun or a gunpowder."

"There is, of course," said Lambelle, "much in what you say; but,
equally of course, all that you say might have been said to the
inventor of gunpowder, for gunpowder in its day was as wonderful as
this is now."

Suddenly the Minister laughed aloud.

"I am talking seriously with you on this subject," he exclaimed, "as if
I really believed in it. Of course, I may say I do nothing of the kind.
I think you must have hypnotized me with those calm eyes of yours into
crediting your statements for even a few moments."

"All that I say," said the inventor quietly, "can be corroborated to-
morrow. Make an appointment with me in the country, and if it chances
to be a calm and sunny day you will no longer doubt the evidence of
your own eyes."

"Where do you wish the experiment to be made?" asked the Minister.

"It must be in some wild and desolate region, on a hill-top for
preference. There should be either trees or old buildings there that we
can destroy,