said behind me. "How did you guess that he wore glasses, anyhow?" to the amateur sleuth.
That gentleman cleared his throat. "There were two reasons," he said, "for suspecting it. When you see a man with the lines of his face drooping, a healthy individual with a pensive eye,—suspect astigmatism. Besides, this gentle man has a pronounced line across the bridge of his nose and a mark on his ear from the chain."
After this remarkable exhibition of the theoretical as combined with the practical, he sank into a seat near-by, and still holding the chain, sat with closed eyes and pursed lips. It was evident to all the car that the solution of the mystery was a question of moments. Once he bent forward eagerly and putting the chain on the window-sill, proceeded to go over it with a pocket magnifying glass, only to shake his head in dis appointment. All the people around shook their heads too, although they had not the slightest idea what it was about.
The pounding in my ears began again. The group around me seemed to be suddenly motionless in the very act of moving, as if a hypnotist
