An iron ball, perfectly imbedded in the right ventricle of the heart, was found in a farm-butchered steer. The heart had been removed whole and set aside during the butcherIng. Placed in refrigeration, it was a number of days before the farmer was ready to use it. When preparing the heart for household use his knife struck something very hard. Cutting on around the center exposed a steel ball approximately two inches in diameter, neatly filling the right ventricle. The surrounding tissues had shaped themselves to the "embolus."