width! Extraordinary
fullness. Now around toward the light! The eyes--ah! The brow--excellent!
Yes, yes, I know about the hand," he nodded to Coquenil, "but the head is
even more remarkable. I must study this head when we have time--_ve_-ry
remarkable. Tell me, my friend, do you suffer from sudden shooting
pains--here, over your eyes?"

"No," said Groener.

"No? I should have thought you might. Well, well!" he proceeded kindly, "we
must have a talk one of these days. Perhaps I can make some suggestions. I
see so _many_ heads, but--not many like yours, no, no, not many like
yours."

He paused and glanced toward an assistant who was busy with the lantern.
The assistant looked up and nodded respectfully.

"Ah, we can begin," continued the doctor. "We must have these off," he
pointed to the handcuffs. "Also the coat. Don't be alarmed! You will
experience nothing unpleasant--nothing. There! Now I want the right arm
bare above the elbow. No, no, it's the left arm, I remember, I want the
left arm bare above the elbow."

When these directions had been carried out, Dr. Duprat pointed to a heavy
wooden chair with a high back and wide arms.

"Please sit here," he went on, "and slip your left arm into this leather
sleeve. It's a little tight because it has a rubber lining, but you won't
mind it after a minute or two."

Groener walked to the chair and then drew back. "What are you going to do
to me?" he asked.

"We are going to show you some magic lantern pictures," answered the
doctor.

"Why must I sit in this chair? Why do you want my arm in that leather
thing?"

"I told you, Groener," put in the judge, "that we were coming here for the
visual test; it's part of your examination. Some pictures of persons and
places will be thrown on that sheet and, as each one appears, I want you to
say what it is. Most of the pictures are familiar to everyone."

"Yes, but the leather sleeve?" persisted the prisoner.

"The leather sleeve is like the stop watch, it records your emotions. Sit
down!"

Groener hesitated and the guard pushed him toward the chair. "Wait!" he
said. "I want to know _how_ it records my emotions."

The magistrate answered with a patience that surprised M. Paul.
"There is a pneumatic arrangement," he explained, "by which the
pulsations of your heart and the blood pressure in your arteries
are registered--automatically. Now then! I warn you if you don't
sit down willingly--well, you had better sit down."