Where neither the principal nor the broker effecting the sale had notice of former negotiations with the other broker the latter is not entitled to a commission, especially where she failed to bring the buyer and seller to an agreement. Haines v. Barney, 67 N. Y. S. 164, 33 Misc. 748; Martin v. Billings, 2 N. Y. City Ct. 86; Kifer v. Yoder, 198 Pa. St. 308, 47 A. 674; Glasscock v. Vanfleet, 100 Tenn. 603, 46 S. W. 449; Slagle v. Russell, 80 A. 164, 114 Md. 418. See also Secs. 360, 558.

There are cases holding that, irrespective of notice, the commission belongs to the broker who is the procuring cause of the sale. Scott v. Lloyd, 17 Colo. 401, 35 P. 733, and Sec. 446.