The agreement made by the appellant and Mrs. Hansell was an exchange, rather than a sale of lands. There is, however, no material difference because of the character of the contract, in respect to the principles upon which a court of equity must proceed in compelling or refusing specific performance. Whether the one or the other, the agreement must be fair and just in all its parts, and founded upon an adequate consideration : if wanting in either of these essential elements, the court will not interfere.—Gould v. Womack, 2 Ala. 83; Casey v. Holmes, 10 Ala. 776.
The want of consideration, upon Avhich the appellees rely, is the want of a legal title in the appellant to the “ Decatur lot,” as it is designated in the bill, which was the considera.tion for the “ Moulton lot,” as it is designated. When there is a sale or exchange of lands, and the agreement is silent as to the nature and character of the estate or interest in and to the lands intended to be sold or conveyed, it may be admit*157ted that the presumption arises, that an indefeasible legal estate, not impaired in value by incumbrances created by, or suffered, or known to the bargainor, is intended to pass to, and be acquired by the bargainee; and the want of such an estate will bar the bargainor from relief by a specific performance of the contract under the decree of a court of equity. But lesser estates and interests in.lands are the .subject-matter of sale or exchange, and may form the consideration of contracts, fair and just in themselves, the specific performance of which courts of equity will compel.
Though the appellant had not the legal estate in the “ Decatur lot,” he had possession, and the right of possession, and an inchoate, imperfect equity, which, on the final payment of the purchase-money, would ripen into a perfect equity. The contract with his vendor may have rested v’ ” ^ parol, not manifested by any writing which would sab, statute of frauds ; yet, there was the payment of the -, part of the purchase-money, and he had been let into, remained in undisturbed possession; which, according to . established doctrine of a court of equity, would have wib drawn the agreement from the operation of that statute, ana which, by the express words of the statute now of force^ forms an exception to it. — Code of 1876, § 2121, subd. 5. The relation subsisting between him and the vendor, Minor, is well defined in a court of equity. For many purposes, he would be regarded as the owner of the land ; the vendor holding the legal estate in trust for him, and he holding the purchase-money in trust for the vendor. The equity with which the appellant was clothed, was an estate or interest in lands, having the properties and incidents generally of a corresponding legal estate. It was subject to the- payment of his debts, capable of alienation, or of devise, or of descent to heirs. It was, consequently, a valuable consideration for the agreement of exchange; and of its adequacy there is no reason for doubt, in view of the averments of the bill. The precise character of the estate or interest was known to Mrs. Hansell, when she entered into the exchange, and it was upon the basis of its nature and character that the contract was made. Possession, accompanied with a transfer of the right to convert the equity into a legal estate by the payment of the purchase-money unpaid by the appellant, was the interest she stipulated to acquire, and was all that appellant stipulated to transfer. This she did acquire; and the appellant, on his part, performed the agreement fully. The subsequent loss of the possession of the lot was not because the appellant had not, and did not transfer, all the claim and interest in and to it which it was intended he should transfer, but was *158in consequence of her own default in paying the remainder of the purchase-money, as it was intended and contemplated she would do. As between her -and the appellant, the duty and obligation of making the payment rested wholly upon her; and if, instead of resorting to the lien on the lot, the vendor had compelled the appellant; to make the payment, a court of equity would have declared and enforced a lien on the lot for his repayment.—Burns v. Taylor, 23 Ala. 255.
When, under a parol contract to sell or to convey lands, there is performance by the party seeking specific execution, te such an extent that it would be a fraud upon him to withhold relief, a court of equity will grant it, notwithstanding the statute of frauds. It is the prevention of fraud, the statute was not intended to enable a party to commit with impunity,-that is the substantial ground upon which the court interferes, compelling the specific performance of contracts, in part executed, which are within the words of the statute; and not upon any notion that the court has the power to dispense with the statute, or that it is not as obligatory in equity as at law.- — 1 Story’s Eq. § 759; 1 Brick. Dig. 694, § 798; Brewer v. Brewer, 19 Ala. 481. Applying the rule to the case as made by the bill, it is obvious that the appellant has executed wholly the agreement on his part, relying upon Mrs. Hansell to execute it upon her part; and if she, or those now claiming under her, can be allowed to refuse performance, he must suffer grievous injury, and can not be restored te the condition in which he was when he performed. By the default of Mrs. Hansell, the opportunity of completing the equity in the “Decatur lot” has been lost; and the “ Moulton lot,” if the statute of frauds could avail, would be taken from him, without compensation, and without fault on his part. Whatever may have been intended, such a result is a fraud a court of equity will not suffer the statute of frauds to shelter.
It is insisted, in support of the demurrer, that the bill shows that Mrs. Hansell has no title to the “Moulton lot”— that the title resides in the appellees, heirs of her deceased husband. There may be cases, in which a court of equity will not intervene and compel a vendor to perform specifically the contract of purchase, because his title is so defective that performance is practically impossible. But this case is not of that character; for, in any event, it is' certain that Mrs. Hansell had a perfect equity, if she had not the legal estate in the premises. On its face, the conveyance to her, executed by her husband, is sufficient to pass the fee simple at law. It has every component and requisite of a deed of bargain and sale, founded on a pecuniary consideration — the parties *159and the premises described, apt words of conveyance, signed by the grantor, and attested by a subscribing witness. The invalidity imputed to it rests upon extrinsic circumstances, the first of which is, that the attestation by the subscribing witness was his own voluntary act, made without the request, knowledge, or consent of the grantor, and, of consequence, is not such an attestation as is essential to the validity of a legal conveyance of lands. Under our statute, when the grantor writes his own name, an attestation by at least one subscribing witness, or an acknowledgment of execution before an officer having authority to take and certify the acknowledgment of conveyances, is an indispensable requisite of a legal conveyance of lands.—Goodlett v. Hansell, 56 Ala. 346. The attestation must, of course, be made with the knowledge and consent of the grantor, for testimony of the fact of execution by him. When made without his knowledge and consent, it is not the attestation the statute requires, and the instrument is wanting in an essential element of a legal conveyance of lands. Though wanting in the attestation of a subscribing witness, or of an acknowledgment before a proper officer, and insufficient to pass the legal estate, the instrument manifests not only ah agreement to convey, but an actual present conveyance of the legal estate, upon a valuable consideration, and in equity passed that estate to the grantee, as against the grantor, or his heirs, or all privies in estate having notice.
A court of equity, looking beyond the forms of contracts, to their substance, and the ascertained intention of the parties, will cure the omission of a subscribing witness, and compel the conveyance of the legal estate. This doctrine said Ch. Kent, in Wadsworth v. Wendell, 5 Johns. C. 231, “ is too well established, and is too just in itself, to admit of any doubt.” Aud in the case of Morse v. Faulkner, 1 Anst. 14, cited by him, it was said by Ch. B. Eyre, “It is clear, that where there is an agreement to convey, or a defective conveyance by a person then having title actually, that would be such an equity as would bind the lands in the hands of the heir.” The books abound in cases, in which purchasers with defective conveyances have been assisted by a court of equity, against the vendor, or his heirs, or devisees, or voluntary donees, or assignees, or purchasers having notice; the defective conveyance being regarded, at least, of the dignity of an agreement to convey, and, for many purposes, as an actual conveyance.—Barr v. Hatch, 3 Ohio, 538; Warrick v. Edwards, 1 Hoffman’s Ch. 391. It is a want of title, or the impossibility of acquiring it, which may relieve a vendor from specific performance of the contract of purchase ; and not a *160title, to perfect which a resort to a court of equity may b© necessary, and which, in the view of that court, is equal to, and binds the legal estate.
But it is urged there was the want of a meritorious or valuable consideration for the conveyance to Mrs. Hausell, from her husband; and, of consequence, it is incapable of enforcement specifically, against his heirs. The consideration is recited in the conveyance in these w'ords: “ Whereas I, J. H. Hansell, am justly indebted to my wife, Carrie H. Hansell, in a considerable sum, not ascertained, for the appropriation by me of her separate property derived from her father: Now, in consideration of the premises, and of natural love and affection, and of the sum of one dollar to me in hand paid,” <fec. When a valuable consideration is necessary to support a deed, the bare recital of a nominal pecuniary consideration will not, of itself, be regarded as evidence of a valuable consideration. This must be true, especially, when there is also the expression of a consideration merely good, as the love and affection of a husband for a wife, or of a parent for a child. Such deeds or instruments, though founded upon a mere nominal pecuniary consideration, may fall within the technical definition of voluntary instruments, the specific execution of which courts of equity may not assist.—Felder v. Harper, 12 Ala. 612; Kinnebrew v. Kinnebrew, 35 Ala. 628.
We pass, without attaching importance to it, the expression of the payment of one dollar, as the consideration of the instrument; because the indebtedness to the wife, expressed and acknowledged, though unascertained in amount, of itself forms an adequate valuable consideration which will support it, and entitles the grantee, and all who claim under her, to the assistance of a court of equity, in the divestiture of the naked legal estate descending to the heirs of the husband. When a consideration is expressed in a conveyance, in the absence of fraud or mistake, it may not be denied or disproved, or its adequacy controverted, by the grantor, or his heirs, or privies in estate, to defeat the conveyance, or the uses and purposes therein expressed.—Morse v. Shattuck, 4 N. H. 229; McCrea v. Purmort, 16 Wendell. The recital of consideration is open to contradiction by the creditors of the grantor, assailing the conveyance for fraud. It is also open to explanation generally, when the grantor may be called to answer in damages for a breach of covenant,. and in other cases, a reference to which it is not now necessary to make. The rule may, nevertheless, be stated generally, that when a particular consideration is recited, not merely nominal, the grantor or his heirs, in the absence of fraud or mistake, are *161estopped from a denial of its adequacy. Whatever was the amount of the debt to the wife, it was by the grantor' esteemed as an adequate consideration for the lands conveyed, — their equivalent in value. There was no fraud or imposition, and he had full capacity for himself to determine whether the debt to the wife, the amount of which was unascertained, but which he had, as it must be presumed, the means of ascertaining, was an adequate consideration. Inadequacy of consideration, unless accompanied with some circumstances of hardship, or of oppression, or evidence of fraud, is not a ground for refusing specific performance of a contract.— Fry on Specific Performance. §§ 275-285.
The next ground of opposition to this instrument is, that it must be intended the estate of the wife, appropriated by the husband, was her statutory, as distinguished from her equitable estate; and, of consequence, the conveyance falls within the inhibition of the statute — “ husband and wife can not contract with each other for the sale of any property.” Code, § 2709. Whether the presumption would arise, from the recital of the conveyance, that the estate appropriated by the husband was the statutory or equitable estate of the wife, it is not material to consider. In either case, the duty of the husband, moral and legal, was to make restitution, compensation to the v?ife, as full and adequate as ho would make to a stranger to whom he was under a like duty. A court of equity would have compelled him to the duty, whether the estate was the statutory or the equitable estate of the wife; and having done it voluntarily, the court will support it as well done.—Wilson v. Sheppard, 28 Ala. 623; Marks v. Cowles, 53 Ala. 499. The clause of the statute referred to lias never been construed, nor can it be properly and justly construed, as a restraint upon the power of the husband in the peformance of this duty, from conveying property to the wife in satisfaction of his liability to her thus created, or as depriving her of the capacity to accept the conveyance.—Davidson v. Lanier, 51 Ala. 318; Northington v. Faber, 52 Ala. 47; Copeland v. Kehoe, 57 Ala. 246. Such a conveyance, of necessity, creates in the wife an equitable separate estate, as to which she becomes a femme sole, having lull capacity to charge, sell, or otherwise dispose of it.—McMillan v. Peacock, 57 Ala. 127.
The case, then, as made by the bill, and admitted by the demurrer, resolves itself into a very narrow compass. There was an exchange of lots by parol, made by the appellant and Mrs. Hansell, he having on his part fully performed the contract. She accepted the performance, enjoying for a time its benefits, and losing full enjoyment only by her own default *162in keeping tbe contract. There was by her part performance of the contract, by placing the appellant in tbe possession of the “ Moulton lotand all that remains to full performance is clothing him with the legal estate, which can be acquired from the heirs of her deceased husband, to whom it has descended. The contract is well defined — there is no uncertainty about it; and it is of the class of Contracts a court of equity is in the constant habit of compelling parties and their privies, whether in blood or estate, to perform specifically. Eor there can be no doubt, that where specific performance will be decreed between tbe immediate parties, it will also be decreed between parties claiming under them, unless some controlling equity intervenes, rendering it improper. Brewer v. Brewer, 19 Ala. 489. It is scarcely necessary to say, that Minor was not a necessary or proper party to this bill, having no right or interest in tbe matter of controversy.
The demurrer to the bill was not well taken, and ought to have been overruled. A decree will be here rendered, reversing the decree of the chancellor, overruling the demurrer, and remanding the cause.