The Other Professor regarded him with some anxiety. "The smaller animal ought to go to bed at once," he said with an air of authority.

"Why at once?" said the Professor.

"Because he can't go at twice," said the Other Professor.

The Professor gently clapped his hands. 'Isn't he wonderful! he said to Sylvie. "Nobody else could have thought of the reason, so quick. Why, of course he ca'n't go at twice! It would hurt him to be divided."