ZUBEN ELGENUBI: ACCORDING TO PTOLEMY AND THE OLD WRITERS IT IS OF THE NATURE OF SATURN AND MARS, BUT LATER AUTHORS SUBSTITUTE SATURN AND VENUS OR SATURN AND MERCURY, AND ALVIDAS LIKENS IT TO MARS, VENUS AND SATURN. IT CAUSES MALEVOLENCE, OBSTRUCTION, AN UNFORGIVING CHARACTER, VIOLENCE, DISEASE, LYING, CRIME, DISGRACE, AND DANGER OF POISON.