FUTURE generations will remember Ian Hay as one who, with his' The First Hundred Thousand,' helped to save England in 1915 from sinking into the slough of despond. With Bruce Bairns -father he discovered the humorous traits in the British soldier of the earlier days of the War, and set them down in happy print. He has now just returned from a special visit to the German occupied territory to describe ' The Last Thousand '-those remaining British soldiers who are returning home at last-the final ' carry. over ' from the War t