Being in the track of the ocean steamers it was not long before he found himself overtaking a magnificent vessel whose decks were crowded with passengers. He dropped down some distance, to enable him to see these people more plainly, and while he hovered near he could hear the excited exclamations of the passengers, who focused dozens of marine glasses upon his floating form. This inspection somewhat embarrassed him, and having no mind to be stared at he put on additional speed and soon left the steamer far behind him. About noon the sky clouded over, and Rob feared a rainstorm was approaching. So he rose to a point considerably beyond the clouds, where the air was thin but remarkably pleasant to inhale and the rays of the sun were not so hot as when reflected by the surface of the water.