"Not in his arm, you can look and satisfy yourself on that point. It is just possible that he made an injection through his clothes. It requires a more careful investigation than I can make to-night before I can give a decided opinion."
"Quite so, but you do not mind my looking at the body rather closely? A little thing so often tells a big story, and the little things are sometimes difficult to find once the body has been moved."
The doctor watched Quarles's close investigation with some amusement. The shirt front came in for a lot of attention, and the collar was examined right round to the back of the neck. It was a long time before Quarles stood erect and put the lens in his pocket. I got the impression that he had prolonged the investigation for the purpose of impressing the doctor.
"It would be virulent poison which would kill a man so quickly and while he sat in his chair," Quarles said reflectively.
"It would, indeed," the doctor returned.
"You have formed no idea what the poison was?"
"Not yet."
"No hypodermic syringe has been found, I suppose?" said Quarles, turning to me.
"No."
"You see, doctor," he went on, "if the glasses there show no evidence of poison, and nothing has been moved, and you decide that poison was the cause of death, one might jump to the conclusion that it had been self-administered with a syringe; that is why I ask about a syringe."