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 those conversations since the day of the trial. He even fired me with his enthusiasm, and I used to assist him in his little experiments, and obtained quite a working knowledge of these particular elements. Unfortunately I cannot remember very much, for my enthusiasm soon died, and beyond the fact that he employed hyocine and Indian hemp I have only the dimmest recollection of any of the constituents he employed."

Saul Arthur nodded energetically.

"I shall have more to tell you later, perhaps," he said, "but at present my inquiries are shaping quite nicely. He is going to be a difficult man to catch, because, if all I believe is true, he is one of the most cold-blooded and calculating men it has ever been my lot to meet—and I have met a few," he added grimly.

When he said men Frank knew that he had meant criminals.

"We are probably doing him a horrible injustice," he smiled. "Poor old Jasper!"