Powers, especially of appointment, being always founded on trust or confidence, are peculiarly subjects of equitable supervision.
(Orig. Code 1863, § 3097; Code 1868, § 3109; Code 1873, § 3166; Code 1882, § 3166; Civil Code 1895, § 4017; Civil Code 1910, § 4614; Code 1933, § 37-601.)