ill myself see that the law takes its
regular course.

"Permit me most gratefully to thank you for the advance on my regular
fees which you have so graciously transmitted, and believe me your
obedient humble servant to command."

II

I next submit a copy of a letter addressed by the late
Chemistry-Professor Fontaine to an honored friend and colleague. This
gentleman is still living; and he makes it a condition of supplying the
copy that his name shall not appear:--

"Illustrious Friend and Colleague,--You will be surprised at so soon
hearing from me again. The truth is, that I have some interesting news
for you. An alarming accident has enabled me to test the value of one of
my preparations on a living human subject--that subject being a man.

"My last letter informed you that I had resolved on making no further use
of the Formula for recomposing some of the Borgia Poisons (erroneously
supposed to be destroyed) left to me on the death of my lamented
Hungarian friend--my master in chemical science.

"The motives which have led me to this decision are, I hope, beyond the
reach of blame.

"You will remember agreeing with me, that the two specimens of these
resuscitated poisons which I have succeeded in producing are
capable--like the poisons already known to modern medical practice--of
rendering the utmost benefit in certain cases of disease, if they are
administered in carefully regulated doses. Should I live to devote them
to this good purpose, there will still be the danger (common to all
poisonous preparations employed in medicine) of their doing fatal
mischief, when misused by ignorance or crime.

"Bearing this in mind, I conceive it to be my duty to provide against
dangerous results, by devoting myself to the discovery of efficient
antidotes, before I adapt the preparations themselves to the capacities
of the healing art. I have had some previous experience in this branch of
what I call preservative chemistry, and I have already in some degree
succeeded in attaining my object.

"The Formula in cipher which I now send to you, on the slip of paper
enclosed, is an antidote to that one of the two poisons known to you and
to me by the fanciful name which you suggested for it--'Alexander's
Wine.'

"With regard to the second of the poisons, which (if you remember) I have
entitled--in anticipation of its employment as medicine--'The
Looking-Glass Drops,' I regret to say that I have not yet succeeded in
discover