" 'The key of the laboratory door, and the key of the safe, will be
secured this day in the presence of my medical attendant, in a small
wooden box. The box will be sealed (before the same witness) with my own
seal. I shall keep it under my pillow, to give it myself to Professor
Stein, if I live until he returns from Munich.

" 'If I die while my executor is still absent, my beloved wife is the one
person in the world whom I can implicitly trust to take charge of the
sealed box. She will give it to Professor Stein, immediately on his
return to Wurzburg; together with these instructions, which will be
placed in the box along with the keys.'



"There are the instructions, friend Fritz! They are no secret now. The
Professor has felt it his duty to make them public in a court of law, in
consequence of the events which followed Doctor Fontaine's death. You are
interested in those events, and you shall be made acquainted with them
before I close my letter.

"Professor Stein returned from Munich too late to receive the box from
the hands of his friend and colleague. It was presented to him by the
Widow Fontaine, in accordance with her late husband's wishes.

"The Professor broke the seal. Having read his Instructions, he followed
them to the letter, the same day.

"Accompanied by the Secretary to the University, as a witness, he opened
the laboratory door. Leaving the sale of the objects on the table to be