He took his hat off his hot head and lay propped on his elbow in the lush, feathery, woodland grass.

"Yes, I must make it clear to myself and understand," he thought, looking intently at the untrampled grass before him, and following the movements of a green beetle, advancing along a blade of couch-grass and lifting up in its progress a leaf of goat-weed.

" What have I discovered?" he asked himself, bending aside the leaf of goat-weed out of the beetle's way and twisting another blade of grass above for the beetle to cross over onto it.