Between one and two o'clock, the next afternoon, Benjulia (at work in his laboratory) heard the bell which announced the arrival of a visitor at the house.

No matter what the circumstances might be, the servants were forbidden to disturb him at his studies in any other way.
Very unwillingly he obeyed the call, locking the door behind him.

At that hour it was luncheon-time in well-regulated households, and it was in the last degree unlikely that Mrs.Gallilee could be the visitor.
Getting within view of the front of the house, he saw a man standing on the doorstep.

Advancing a little nearer, he recognised Lemuel.
"Hullo!" cried the elder brother.
"Hullo!" answered the younger, like an echo.
They stood looking at each other with the suspicious curiosity of two strange cats.

Between Nathan Benjulia, the famous doctor, and Lemuel Benjulia, the publisher's clerk, there was just family resemblance enough to suggest that they were relations.