Kennedy looked gravely over the analysis which Dr. Hanson shoved
into his hand, and seemed very much interested in the probable
quantity of morphine that must have been taken to yield such an
analysis. The physician had a text-book open on his desk.

"Our old ideas of the infallible test of morphine poisoning are
all exploded," he said, excitedly beginning to read a passage he
had marked in the book.

"'I have thought that inequality of the pupils, that is to say,
where they are not symmetrically contracted, is proof that a case
is not one of narcotism, or morphine poisoning. But Professor
Taylor has recorded a case of morphine poisoning in which the
unsymmetrical contraction occurred.'

"There, now, until I happened to run across that in one of the
authorities I had supposed the symmetrical contraction of the
pupils of the eyes to be the distinguishing symptom of morphine
poisoning Professor Kennedy, in my opinion we can, after all,
make out our case as one of morphine poisoning."

"Is that case in the book all you base your opinion on?" asked
Craig with excessive politeness.

"Yes, sir," replied the doctor reluctantly.

"Well," said Kennedy quietly, "if you will investigate that case
quoted from Professor Taylor, you will find that it has been
proved that the patient had one glass eye."