I remember remarking aloud: 'Daddy Jacques must surely have opened it while we were away.' "Q.

Strange!--Do you recollect, Monsieur Stangerson, if during your absence, and before going out, he had opened it?
You returned to the laboratory at six o'clock and resumed work?
"Mademoiselle Stangerson.

Yes, monsieur.
"Q.

And you did not leave the laboratory from that hour up to the moment when you entered your chamber?
"M.

Stangerson.