y. She cast an uneasy
glance upon the audience, and then turned towards the doctor, who drew
his chair towards the patient so that her knees nearly touched his.

It was a case of nervous "Hemianopsie," or one-eyed vision, he
explained.

Now the existence of this has always been denied, therefore the
experiment was of the most intense interest to every medical man
present.

First the doctor, after ordering the patient to look him straight in
the face, held a pencil on the left side of her head, and found that,
in common with most of us, she was conscious of its presence without
moving her eyes, even when it was almost at the level of her ear. Then
he tried the same experiment on the right side of the face, when it
was at once plain that the power of lateral vision had broken
down--for she answered, "No, sir. No, no," as he moved the pencil to
and fro with the inquiry whether she could see it. Nevertheless he
demonstrated that the power of seeing straight was quite unimpaired,
and presently he gave to his assistant a kind of glass hemisphere,
which he placed over the girl's head, and by which he measured the
exact point on its scale where the power of lateral vision ceased.

This being found and noted, Professor Deboutin placed his hand upon
the patient's eyes, and with a brief "You may sleep now, my girl," in
broken English, she was asleep in a few seconds.

Then came the lecture. He verbally dissected her, giving a full and
lucid explanation of the nervous system, from the spinal marrow and
its termination in the coccyx, up to the cortex of the brain, in which
he was of opinion that there was in that case a lesion--probably
curable--amply accounting for the phenomenon present. So clear,
indeed, were his remarks that even a layman could follow them.

At last the doctor awoke the patient, and was about to proceed with
another experiment when his quick eye noticed a hardly-perceptible
flutter of the eyelids. "Ah, you are tired," he said. "It is enough."
And he conducted her to the little side door that gave exit from the
platform.

The next case was one of the kind which is always the despair
of doctors--hysteria. A girl, accompanied by her mother, a
neatly-dressed, respectable-looking body, was led forward, but her
hands were trembling, and her face working so nervously that the
doctor had to reassure her. With a true cockney accent she said that
she lived in Mile End, and worked at a pickle factory. Her symptoms