"Robert?" said Mr. Burrows, more for form's sake than because he had the slightest doubt about Robert's reply.
"My!" said Bob Turner good-naturedly; "I can't do it."
Tip sat next, and something in his face made Mr. Burrows put the question to him, though he had nearly resolved to waste no more time in the matter.
"Can you do this, Edward?"
"Yes, sir," said Tip promptly and proudly, "I can."
And no nobler figures or firmer lines did chalk ever make on a blackboard than was made while that troublesome example was being done.
He was roused from his flutter of satisfaction by hearing Mr. Burrows' voice.
"Do you know anything about the lesson, any of you?"
"I'm sure I don't," answered Bob, still good-naturedly.
Mr. Burrows was growing utterly out of patience; this same scene had been acted too often to be endured longer. He turned back to the first pages in the book.