National Geographic : 1918 Nov
©J.Organ, Jr. PETRIFIED TREE STUMP IN THE CORK AND BOTTLE MINE: SCRANTON, PA. J.oran, Jr. This is a tiny paragraph from the chapter on carbon in the great Book of Nature. It is a volume compressed into asentence inpicturing the story of the formation of the coal we burn. Could every man go down into a deep mine andthere read ofthepainstaking processes by which a bountiful Mother Nature so richly provided for us, there would be a fuller appreciation ofthe genial miracle-working heat which is coaxed from coal.