THE art of drawing may be called the art of learning to see,—and into this art there is no guide to be compared with Mr. Ruskin. His own admirable powers of sight, and of expression have been ...

In 1958, as part of a research project on wolves, David Mech, a graduate student in wildlife ecology at Purdue, was flying over Isle Royale National Park, on Lake Superior. From above, he saw a wolf ...