Page:Austin Freeman - The Mystery of 31 New Inn.djvu/38

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34
MYSTERY OF 31, NEW INN

Weiss. "The recovery is rather comparative. He is lucid and fairly natural in his manner, but he is still dull and lethargic. He does not, for instance, show any desire to go out, or even to leave his room."

I pondered uncomfortably on these rather contradictory statements. Clearly Mr. Weiss did not mean to entertain the theory of opium poisoning; which was natural enough if he had no knowledge of the drug having been used. But still——

"I suppose," said Mr. Weiss, "you have experience of sleeping sickness?"

The suggestion startled me. I had not. Very few people had. At that time practically nothing was known about the disease. It was a mere pathological curiosity, almost unheard of excepting by a few practitioners in remote parts of Africa, and hardly referred to in the text-books. Its connection with the trypanosome-bearing insects was as yet unsuspected, and, to me, its symptoms were absolutely unknown.

"No, I have not," I replied. "The disease is nothing more than a name to me. But why do you ask? Has Mr. Graves been abroad?"

"Yes. He has been teaveling for the last three or four years, and I know that he spent some time recently in West Africa, where this disease occurs. In fact, it was from him that I first heard about it."

This was a new fact. It shook my confidence in my diagnosis very considerably, and inclined