Agency is divided into two divisions; (1) Special; (2) General Agency. A special agency particularly exists when there is a delegation of authority to do a single act. A general agency particularly exists when there is a delegation of authority to do all acts connected with a particular trade, business or employment; thus, a person authorized by his principal to execute a particular deed, or to sign a particular contract, or to procure a purchaser for certain real estate, is a special agent. Story on Ag. Sec. 17; Mechem on Ag. Sec. 6. Several instances of special agency or employments do not constitute a general agency. Angle v. Miss. etc. R. Co., 9 Iowa, 487, 502. A person who is authorized by his principal to execute all deeds and sign all contracts required in a particular trade, business, or employment, is a general agent in that trade, business or employment. Story on Ag. Sec.

17; Mechem on Ag. Sec. 6; Sampson v. Hermstrom, 190 I11. App. 12; Herrigan v. Dodge, 103 S. E. 919, 216 Miss. 461; Daugherty v. Leewright, 174 S. W. 841, - Tex. Civ. App. -; Swift v. Erwin, 148 S. W. 267, 104 Ark. 459.