In a case in which a woman had killed her husband who had brutally ill-treated her, Devlin, J., gave a summing-up which deserves to be remembered as a clear and accurate charge to a jury where provocation sufficient to reduce murder to manslaughter is pleaded. Provocation is therein defined as "some act, or series of acts, done by the dead man to the accused which would cause in any reasonable person, and actually causes in the accused, a sudden and temporary loss of self- control, rendering the accused so subject to passion as to make him or her for the moment not master of his mind"