“It suggests a cool shade on a hot day,” said Emma.

“Better, but not right. Next.”

“Please, sir, I’d rather not answer,” said Lewis, putting his forefinger in his mouth.

“You must, sir.”

I know, sir,” interrupted Captain Wopper, shaking his fist eagerly.

“Silence, you booby!—Well, boy, what does it suggest to you?”

“Please, sir,” answered Lewis, “it suggests the mole on your professorial cheek.”

“Sir,” cried the Professor, sternly, “remind me to give you a severe caning to-night.”

“Yes, sir.”

“Well, booby, what have you got to say to it?”