624.15  Must be on material point.
  No exception shall be regarded in an appellate court unless the ruling has been on a material point, and the effect thereof prejudicial to the rights of the party excepting.
[R60, §3111; C73, §2836; C97, §3754; C24, 27, 31, 35, 39, §11548; C46, 50, 54, 58, 62, 66, 71, 73, 75, 77, 79, 81, §624.15]

Errors disregarded, §619.16