Then he placed a few grains of the powder on a
dish and dropped on it a drop or two of the liquid. There was a
bright flash, as the powder ignited instantly.
"Just what I expected," commented Kennedy with a nod, as he
examined the clever workmanship of the bomb.
One thing that interested him was that part of the contents had
been wrapped in paper to keep them in place. This paper he was now
carefully examining with a hand lens.
As nearly as I could make it out, the paper contained part of a
typewritten chemical formula, which read:
TINCTURE OF IODINE
THREE PARTS OF---
He looked up from his study of the microscope to Long Sin.
"Tell me just how it happened that you got this bomb," he asked.
Without hesitation, the Chinaman recited the circumstances,
beginning with the note by which he had been summoned.
"A note?" repeated Kennedy, eagerly. "Was it typewritten?"
Long Sin reached into his pocket and produced the note itself,
which he had not burned.
As Craig studied the typewritten message from the Clutching Hand I
could see that he was growing more and more excited.
"At last he has given us something typewritten," he exclaimed. "To
most people, I suppose, it seems that typewriting is the best way
to conceal identity. But there are a thousand and one ways of
identifying typewriting.
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