Bertie caught the book in his arms, laid it open on his knees, and with one delighted "Oh!" at the first peep, became entirely absorbed in the gay pictures. With an air of relief, the Professor retired to his chair, and sat watching him very much as he had watched Cocky Twitters. A pretty little picture he made; for a ray of sunshine crept in to shine on his bright head like a playmate come to find him; his downy brows were knit, and his rosy mouth pursed up at times with the mingled exertions of mind and body, for the book was both beautiful and heavy. His eyes feasted on the pages; and now and then he laughed out with delight, as he found a bird he knew, or gave a satisfied nod, and trotted his foot to express his satisfaction at some unusually splendid one. Once he tried to cross his tired legs, but they were too short, and the book went down with a bang that made him glance at his host in alarm.
But while he studied Audubon's birds, the Professor had studied mamma's boy, and found he could "reccomember" some of the traits belonging to that species of wild-fowl. As he looked, the smile had been playing hide-and-go-seek among his wrinkles, getting less ghostly every minute, and
