GOOD CON SIDERATION. A "good" consideration is defined by Blackstone by giving an example of it, "as that of blood, or natural affection, when a man grants an es tate to a near relation; being founded on motives of generosity, prudence and natural duty." And he fur ther observes that "deeds made upon good considera tion only are considered as merely voluntary, and are frequently set aside in favor of creditors and bona fide purchasers." (2 Bl. Corn. 297.) It was early held that a person might make a binding promise to another to do something for the other's son or daughter, and that the relationship would entitle the party to be benefited to sue upon the contract. But this is no longer law, and it is held that the party suing upon a promise must show that the consideration for the promise was some benefit conferred or detriment sustained by himself. (Anson on Cont. p. 78; Contra Emmitt v. Brophy, 42 Ohio St. 82.) And generally, blood, or natural affec tion is not such a consideration as will support a promise.