0, 36 P.2d 1088; Birmingham News Co. v. Browne, 228 Ala. 395, 153 So. 773; Johnson v. Ala. Fuel Iron Co., 166 Ala. 534, 52 So. 312; 11 R.C.L. 811; 39 C.J. 1293; Seaboard Air Line R. Co. v. Gleason, 5 Cir., 21 F.2d 883; Wallace v. Casey Co., 132 App. Div. 35, 116 N.Y.S. 394; Byrne v. Dennis, 303 Pa. 72, 154 A. 123; Credit Alliance Corp. v. Sheridan Theatre Co., 241 N.Y. 216, 149 N.E. 837; Wen Kroy Realty Co. v. Public Nat. B. T. Co., 260 N.Y. 84, 183 N.E. 73; Fifth St. B. L. Ass'n v. Kornfeld, 315 Pa. 406, 172 A. 703; King Const. Co. v. Mary Helen Coal Corp., 194 Ky. 435, 239 S.W. 799; Robertson v. C. O. D. Garage Co., 45 Nev. 160, 199 P. 356; Silverado S. S. Co. v. Prendergast, 9 Cir., 31 F.2d 225; Arnold v. Somers, 92 Vt. 512, 105 A. 260. Complainant must be deemed to have known Ellis owned the property involved in her trade with him since, in absence of misrepresentations as to contents of document, one who executes the document will not be heard to deny knowledge of its contents. Grant Lumber Co. v. North River Ins. Co., D.C., 253 F. 83; Metzger v. Aetna Ins. Co., 227 N.Y. 411, 125 N.E. 814; In re McCready's Estate, 316 Pa. 246, 175 A. 554; Muller v. Mutual Ben. H. A. Ass'n, 228 Mo. App. 492, 68 S.W.2d 873; Midland Mortgage Co. v. Rice, 197 Iowa 711, 198 N.W. 24; 17 C.J.S., Contracts, ยง 137, p. 489; 12 Am.Jur. 630; Bates v. Harte, 124 Ala. 427, 26 So. 898, 82 Am.St.Rep. 186; Terry v. Mutual Life Ins. Co., 116 Ala. 242, 22 So. 532. The acts of an agent, even in matters touching his agency, do not bind his principal where he is known to be acting for himself or to have an adverse interest.