Perry sneezed and admitted that it did.

"Anything else wrong with you?"

"Not exactly, sir;" then with a sudden glibness, "but I don't feel like doing much. Only loafing around—and my head feels queer."

"Home," ordered the doctor, emphatically. "At least four days. Tell your mother you've a first-class case of measles developing."

As Perry made his exit, Olaf appeared.

"Another?" exclaimed the physician, as he exchanged a glance with the gray-haired principal. "Well, what's the matter with you?"

Olaf elaborated upon the symptoms which he had described to Miss Brown. The young medic was puzzled.

"There are aspects which are not quite consistent," he said to the principal, "but the soreness suggests mumps. Shall we send him home?"

"As you think best," nodded Mr. Downer. Olaf went the way of the measles-smitten Perry.

The doctor was picking up his hat and medicine case to leave when the office door opened again. Two more boys appeared.