"Then would you say that three grains would be a lethal dose?"
"It would most probably prove fatal. One sixth of a grain has been known to produce death."
"One sixth of a grain has proven fatal, and, from what you found, you conclude that three grains had been given to this woman?"
"Yes, provided your hypothesis as to the time of administration is correct."
"Oh, we will prove the hypothesis."
"Then I should say that three grains had been administered."
"Three grains or more?"
"Yes, three grains or more."
"You may take the witness," said the Assistant District Attorney, and
Mr. Bliss at once began his cross-examination.
"Professor, as an expert toxicologist now, leaving analytical chemistry for awhile, you are familiar with the action of drugs in the human body during life, are you not?"