I can’t, Dr. Sterling,” Rathbone turned his body around and looked through Cub searchingly. His doming forehead added weight to his eyes.

Cub shifted his position, and Bear Sterling who had missed the by-play growled:

“Is it hard to obtain?”

“Sir?”

“I said is coniine difficult to get?”

“Since we never have any use for it, I don’t know, Dr. Sterling,” he hesitated as if endeavoring to hide his irritation and then continued, “Shall I find out, sir?”

Dr. MacArthur interposed:

“Good idea. See where and in what quantities the big pharmaceutical houses have sold coniine within the last year.”

“Perhaps we can trace the person quickly that way,” Dr. Barton affirmed.

Rathbone rose and turned, “Is there anything else, gentlemen? I’ll let you know directly I find out. Do you wish all syringes in the hospital checked, Dr. MacArthur?”