A real estate broker and his sub-agent stand relatively in the same position, with reference to the right to compensation, as do the principal and the broker. Leonard v. Roberts, 20 Colo. 88, 36 P. 880; Olsen v. Jordan, 38 Minn. 466, 38 N. W. 485; Warren Com. & Inv. Co. v. Hull, 120 Mo. App. 432, 96

S. W. 1038; Parker v. Merrell, 173 Mass. 391, 53 N. E. 913; Whiting v. Saunders, 51 N. Y. S. 211, 23 Misc. 332; Weinstem v. Golding, 40 N. Y. S. 680, 17 Misc. 613; Eastland v. Maney, 36 Tex. Civ. App. 147, 81 S. W. 574; Blake v. Austen, 33 Tex. Civ. App. 112, 75 S. W. 571; J. B. Watkin's Ld. Mtge. Co. v. Thetford (Tex. C. A. '06), 96 S. W. 72; Bartbell v. Peter, 88 Wis. 316, 60 N. W. 429; Madler v. Pozorski, 124 Wis. 477, 102 N. W. 892; McCleary v. Willis, 35 Wash. 696, 77 P. 1073.