1 2 3 4 1 _ _ _ _ 2 _ _ _ _ 3 _ _ _ _ 4 _ _ _ _ ACROSS 1) a desert in central china 2) a heavy ductile magnetic metallic element; is silver-white in pure form but readily rusts; used in construction and tools and armament; plays a role in the transport of oxygen by the blood 3) the scum formed by oxidation at the surface of molten metals 4) a port in southern lebanon on the mediterranean sea; formerly a major phoenician seaport famous for silks DOWN 1) the central meaning or theme of a speech or literary work 2) a southeastern suburb of paris; site of an international airport serving paris 3) old world wild swine having a narrow body and prominent tusks from which most domestic swine come; introduced in united states 4) english prelate noted for his pessimistic sermons and articles (1860-1954) ** Scroll down for solution. ** Are you sure you want to peek? gobi iron slag tyre