h to cause a man to commit murder."

"It may take hours--five or six hours. He would certainly be drowsy and
heavy for three or four hours afterwards."

"But not longer--he would not show symptoms for thirty-six hours?"

"Certainly not."

"Then, may I take it from you, doctor, that after the five or six hours
recovery after a bad attack an epileptic might show no signs of the
disease--not even to medical eyes--till the next attack?"

"I should say so," replied the witness. "But I am not an authority on
mental diseases."

"Thank you."

The next witness was Dr. Gilbert Horbury, who described himself as
medical officer of His Majesty's prison, Norwich, and formerly medical
officer of the London detention prison. In reply to Sir Herbert
Templewood, he said he had had much experience in cases of insanity and
alleged insanity. He had had the accused in the present case under
observation since the time he had been brought to the gaol. He was very
taciturn, but he was quiet and gentlemanly in his behaviour. His
temperature and pulse were normal, but he slept badly, and twice he
complained of pains in the head. Witness attributed the pains in the
head to the effect of shell-shock. He had seen no signs which suggested,
to his mind, that prisoner was an epileptic. In reply to a direct
question by Sir Herbert Templewood, he expressed his deliberate
professional opinion that the accused was not suffering from epilepsy in
any form. Epilepsy did not start off with a bad attack ending in
violence--or murder. There were premonitory symptoms and slight attacks
extending over a considerable period, which must have manifested
themselves, particularly in the case of a man who had been through an
arduous military campaign. His illness might have had a bad effect on
the brain, but if it had led to mental disease he would have expected it
to show itself before.

From this point of view the witness, a dour, grey figure of a man,
refused to be driven by cross-examination. His many professional years
within the sordid atmosphere of gaol walls had taught him that most
criminals were malingerers by instinct, and that pretended insanity was
the commonest form of their imposition to evade the consequence of
their misdeeds. The number of false cases which had passed through his
hands had led him to the very human conclusion that all such defences
were merely efforts to defraud the law, and, as a zealous officer of the
law, he took a righteou