A real estate broker to sell land for a certain net price is not entitled, in the absence of a contract therefor, to the excess over such price that he may obtain for the land. Snow v. McFarlane, 51 I11. App. 448; Turnley v. Michael (Tex. Civ. App. '91), 15 S. W. 912; Wolf grain c. Bill, 166 N. W. 309, - S. D. - . Compare Deming Inv. Co. v. Meyer (Okla. '07), 91 P. 846. See also Sec. 456.

And where a broker was authorized to sell land for $3 per acre net to the owner, and was offered $3.50 by a purchaser, who subsequently bought the land of the owner, without the broker's intermediation, the broker could not recover fifty cents per acre from the purchaser, but his action was against the owner, as it was his duty to sell for the best price obtainable, and account to the owner therefor, less a reasonable compensation. Boysen v. Robertson, 70 Ark. 56, 68 S. W. 243.