IX
Go out to study the face of the ground—the ridges, hollows, level places, the ledges, meadows, sandbanks, the course of the streams, the location of the springs—the general shape and contour, the pitch and slant and make-up of the region over which you tramp in the summer. Now, when the leaves are off and things swept bare, you can get a general idea of the lay of the land that will greatly aid you in your more detailed study of plants and birds, of individual things, in the summer. It is like an outline map in your geography.