Within the rule that pleadings should contain only facts, and not conclusions of law, this means a proposition not arrived at by any process of natural reasoning from a fact or combination of facts stated, but by the application of the artificial rules of law to the facts pleaded. Levins v. Rovegno, 71 Cal. 273. 12 I’ac. 161; Iron Co. v. Vandervort, 164 Pa. 572, 30 Atl. 491; Clark v. Railway Co., 2S Minn. 69, 9 N. W. 75.