5987469 Squirrel\'s way with nuts, empty shells showing the neat work of the incisor teeth (b/w photo) by English Photographer, (20th century); Private Collection; (add.info.: Squirrel\'s way with nuts, empty shells showing the neat work of the incisor teeth. Illustration for Animal Life of the British Isles by Edward Step with 111 plates from photographs including 48 in colour by W J Stokoe (Frederick Warne, 1921).); by Look and Learn.