“On the night of the quarrel prisoner complained to you of having a very violent headache?”
“He did.”
“And you proffered to administer to him a dose of a certain narcotic which you had found to be efficacious in such cases yourself?”
“I did.”
“How many drops of the narcotic did you administer to the prisoner?”
“Fifteen, in water.”
“You saw him drink it?”
“I did.”
“You yourself are troubled with violent headaches at times?”
“I am.”