“Your treatment would have been just the same had you been certain?”
“Practically the same, the Rockefeller treatment.”
“Could it have been suicide” asked Andrews.
“There was no motive for it, I believe,” replied the doctor.
“But was there any such poison in the Morowitch house?”
“I know that they were much interested in photography. Cyanide of potassium is used in certain processes in photography.”
“Who was interested in photography, Mr. or Mrs. Morowitch?”
“Both of them.”
“Was Mrs. Morowitch?”
“Both of them,” repeated the doctor hastily. It was evident how Andrews's questions were tending, and it was also evident that the doctor did not wish to commit himself or even to be misunderstood.