1 2 3 4 1 _ _ _ _ 2 _ _ _ _ 3 _ _ _ _ 4 _ _ _ _ ACROSS 1) the cardinal compass point that is at 90 degrees 2) hybrid offspring of a male donkey and a female horse; usually sterile 3) 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 4) the bill in a restaurant DOWN 1) expel (gases or odors) 2) a sensation (as of a cold breeze or bright light) that precedes the onset of certain disorders such as a migraine attack or epileptic seizure 3) a coarse obnoxious person 4) the cardinal number that is the sum of nine and one; the base of the decimal system ** Scroll down for solution. ** Are you sure you want to peek? east mule iron tabs