"I haven't time, Major. I must make him talk to-night if it is humanly possible. I called you in because you are the most eminent authority on the brain in the government service. Is there any way of artificially stimulating this man's brain so that we can force the secrets of his subconscious mind from him?"
The major sat for a moment in profound thought.
"There is a way, Doctor," he said at length, "but it is a method which I would not dare to use. By applying high frequency electrical stimulations to the medulla oblongata, at the same time bathing the cerebellum with ultra-violet, it might be done, but the chances are that either death or insanity would result. I would not do it."
"Major Martin, this man is a reckless and dangerous international criminal. If his gang carries out the plan which I fear they have formed, the lives of thousands, yes, of millions, may pay for your hesitation. I will assume full responsibility for the test if you will make it, and I have the authority of the President of the United States behind me."
"In that case, Doctor, I have no choice. The President is the Commander-in-chief of the army, and if those are his orders the experiment will be carried out. As a matter of form, I will ask that your orders be reduced to writing."
"I will write them gladly, Major. Please proceed with the experiment without delay."
ajor Martin bowed and spoke to a waiting orderly. The prostrate figure of Karuska was wheeled down a corridor into the electrical laboratory, and with the aid of the laboratory technician the surgeon made his preparations. The Moss lamp was arranged to throw a flood of ultra-violet over the Russian's cranium while the leads from a deep therapy X-ray tube was connected, one to the front of Karuska's throat and the other to the base of his brain. At a signal from the major, a nurse began to administer ether.
"I guarantee nothing, Dr. Bird," said the major. "The paralysis of the vocal cords may be physical, in which case the victim will still be unable to speak, regardless of the brain stimulation. If, however, the evident paralysis is due to some obscure influence on the brain, it may work."