He had called to see Dr.Gys.
The young woman smothered a smile that crept to her lips, and led Uncle John through an examination room and an operating room--both vacant just now--and so into a laboratory that was calculated to give a well person the shivers.

Here was but one individual, a man in his shirt-sleeves who was smoking a corncob pipe and bending over a test tube.
Uncle John coughed to announce his presence, for the woman had slipped away as she closed the door.

The man's back was turned partially toward his visitor.

He did not alter his position as he said: "Sit down.

There's a chair in the southwest corner." Uncle John found the chair.