A person of unsound mind is an adult who from infirmity of mind is incapable of managing himself or his affairs. The term, therefore, includes insane persons, idiots, and imbeciles. Sweet. See INSANITY. And see Cheney v. Price, 90 Hun, 23S, 37 N. Y. Supp. 117; In re Black’s Estate, 1 Myr. Prob. (Cal.) 24; In re Mason, 3 Edw. Ch. (N. Y.) 3S0; Hart v. Miller, 29 Ind. App. 222, 04 N. E. 239; In re Lindsley, 44 N. J. Eq. 5G4, 15 Atl. 1, 0 Am. St. Bep. 913; Dennett v. Dennett, 44 N. H. 531, 84 Am. Dec. 97; Edwards v. Davenport (C. C.) 20 Fed. 758; Witte v. Gilbert, 10 Neb. 539, 7 X. W. 2S8; Stewart v. Lispenard, 20 Wend. (N. Y.) 300.