been noted for
the rest of us. Miss La Neige's automatic record during the tracing
out of the sending of the note to Parker had been especially
unfavorable to hear; Mr. Bruce showed almost as much excitement; Mrs.
Parker very little and Downey very little. It was all set forth in
curves drawn by self-recording pens on regular ruled paper. The
student had merely noted what took place in the lecture-room as
corresponding to these curves.

"At the mention of the noiseless gun," said Kennedy, bending over the
record, while the student pointed it out to him and we leaned forward
to catch his words, "I find that the curves of Miss La Neige, Mrs.
Parker, and Mr. Downey are only so far from normal as would be
natural. All of them were witnessing a thing for the first time with
only curiosity and no fear. The curve made by Mr. Bruce shows great
agitation and--"

I heard a metallic click at my side and turned hastily. It was
Inspector Barney O'Connor, who had stepped out of the shadow with a
pair of hand-cuffs.

"James Bruce, you are under arrest," he said.

There flashed on my mind, and I think on the minds of some of the
others a picture of another electrically wired chair.

THE DEADLY TUBE

BY ARTHUR B. REEVE

"For Heaven's sake, Gregory, what is the matter?" asked Craig Kennedy
as a tall, nervous man stalked into our apartment one evening.
"Jameson, shake hands with Dr. Gregory. What's the matter, Doctor?
Surely your X-ray work hasn't knocked you out like this?"

The doctor shook hands with me mechanically. His hand was icy. "The
blow has fallen," he exclaimed, as he sank limply into a chair and
tossed an evening paper over to Kennedy.

In red ink on the first page, in the little square headed "Latest
News," Kennedy read the caption, "Society Woman Crippled for Life by
X-Ray Treatment."

"A terrible tragedy was revealed in the suit begun to-day," continued
the article, "by Mrs. Huntington Close against Dr. James Gregory, an
X-ray specialist with offices at--Madison Avenue, to recover damages
for injuries which Mrs. Close alleges she received while under his
care. Several months ago she began a course of X-ray treatment to
remove a birthmark on her neck. In her complaint Mrs. Close alleges
that Dr. Gregory has carelessly caused X-ray dermatitis, a skin
disease of cancerous nature, and that she has also been rendered a
nervous wreck through the effects of the rays. Simultaneously with
filing the suit she