(a) A fraud may be committed by acts as well as words. 641 51-6-4 (b) One who silently stands by and permits another to purchase his property, without disclosing his title, is guilty of such a fraud as estops him from subsequently setting up such title against the purchaser. (Orig. Code 1863, § 2908; Code 1868, § 2915; Code 1873, § 2966; Code 1882, § 2966; Civil Code 1895, § 3823; Civil Code 1910, § 4419; Code 1933, § 105-304.)