EDITORS HARVARD HERALD : Your editorial Friday morning speaks of Gen. Butler as "a man who has expressed a desire to hang all Harvard professors." This is a mistake, and it is incredible on the face of it. He once said in court, when the testimony of a Harvard professor was quoted by opposing counsel as entitled to great weight, "Oh, we hanged one of them not long ago," referring to Dr. Webster, who murdered Dr. Parkman. This is a somewhat different version of the matter. The New York Herald's remark on your first page refers to this.