Katie had never given much thought to factories beyond the thought that they disfigured the landscape.

Now she wondered what the people who had spent that hot day in the unsightly buildings thought about the world in general--be it one world or two.
Worth had come up to the front of the boat.

The day had weighed upon him too, for he seemed a wistful little boy just then.
She smiled at him lovingly.

"What thinking about, Worthie dear ?" "Oh, I wasn't thinking, Aunt Kate," he replied soberly.

"I was just wondering." "You too ?" she laughed.
"And what would you say, Worthie," she asked after they had gone a little way in silence, "was the difference between thinking and wondering ?" Worth maturely crossed his knees as a sign of the maturity of the subject.