At common law . Relationship by marriage between the husband and the blood relations of the wife, and be- tween the wife and the blood relations of the D husband. 1 Bl. Comm. 434; Solinger v. Earle, 45 N. Y. Super. Ct. 80; Tegarden v. Phillips (Ind. App.) 39 N. E. 212. Affinity is distinguished into three kinds: (1) Direct, or that subsisting between the husband ^ and his wife’s relations by blood, or between the wife and the husband’s relations by blood; (2) secondary, or that which subsists between the husband and his wife’s relations by marriage; (3) collateral, or that which subsists between the husband and the relations of his wife’s relations. Wharton. JJ In the civil law . The connection which arises by marriage between each person of the married pair and the kindred of the other. Mackeld. Rom. Law,