Kelley v. Stone, 94 Iowa, 316, 62 N. W. 842; Stanford v. Bell, 99 Iowa, 545, 68 N. W. 817; Semple v. Rand, 112 Iowa, 616, 84 N. W. 683; Rounds v. Alee, 116 Iowa, 345, 89 N. W. 1098; Hun v. Ashton, 121 Iowa, 265, 96 N. W. 745; Gibson v. Hunt (Iowa Sup. '03), 94 N. W. 277; Lewis v. Susmilch, 130 Iowa, 203, 106 N. W. 624.