|Some have vainly speculated that the firstborn, lying as they did on beds spread on the floor, were subject to acute [[carbon dioxide]] poisoning from a volcanic vent. This explanation, of course, begs the question of why blood painted on jamb and lintel should neutralize carbon dioxide in this manner. | |Some have vainly speculated that the firstborn, lying as they did on beds spread on the floor, were subject to acute [[carbon dioxide]] poisoning from a volcanic vent. This explanation, of course, begs the question of why blood painted on jamb and lintel should neutralize carbon dioxide in this manner. |