THE pageant of Nature is at its grandest-if not at its loveliest-in Autumn, and in this series of talks Mr. Eric Parker , of The Field, will try to open people's eyes to its progress. He will talk of autumn birds and butterflies and blossoms, trees and seeds, the fall of the leaves, the evergreens and the food and shelter of the winter birds, and of those nooks where spring seems to nestle whilst winter still holds the land in its icy grasp.