Too Long; Didn't Read
"That's the one," he exclaimed.
"Hold the glass there for a moment."
Dr. Bird discovers a dastardly plot, amazing in its mechanical ingenuity, behind the apparently trivial eye trouble of the President.
A KNOCK sounded at the door of Dr. Bird's private laboratory in the Bureau of Standards. The famous scientist paid no attention to the interruption but bent his head lower over the spectroscope with which he was working. The knock was repeated with a quality of quiet insistence upon recognition. The Doctor smothered an exclamation of impatience and strode over to the door and threw it open to the knocker.