Do so, monsieur.
"Q.

What did you do on that day ?--I want you to be as minute and precise as possible.

I wish to know all you did that day, if it is not asking too much of you.
"A.

I rose late, at ten o'clock, for my father and I had returned home late on the night previously, having been to dinner at the reception given by the President of the Republic, in honour of the Academy of Science of Philadelphia.

When I left my chamber, at half-past ten, my father was already at work in the laboratory.