delivered the opinion of the Court:
This was 'a bill in chancery, to foreclose a mortgage executed by Clement C. Alexander to Henry Keneagy, on the 1st day of April, 1856, on a tract of land belonging to Alexander, situated in Whiteside county, consisting of several hundred acres, to secure a note of same date, made by Alexander to Keneagy, for $1000, payable in two years, with interest at the rate of ten per cent per annum, and the defences interposed were payment and usury.
There was a hearing upon the merits in the circuit court, resulting in a decree dismissing complainants’ bill, and this decree was affirmed by the Appellate Court for the Second District, and appellants- bring the case to this court by further appeal.
The evidence clearly shows, that while the mortgage note was given to secure a loan of, apparently, $1000, yet, in point of fact, all the money received on it by Alexander was $800, and the note was thus drawn to cover a usurious transaction, which, under the law as it then stood, operated as a forfeiture of three times the amount of interest reserved.
On the 6th of ¡November, 1863, Alexander, for a valuable consideration, sold and conveyed, by warranty deed, 217 acres of the mortgaged premises to Elizabeth Tedford, through whom appellee Eliza Alexander claims — the other appellees having disclaimed all interest therein — and the controversy in this suit turns upon the right of appellants to foreclose the mortgage in question as to the 217 acres purchased by Elizabeth Tedford.
Benjamin E. Woolley, in 1867, purchased the note and mortgage of Keneagy, and appellants claim the purchase was made at the request of, and for the benefit of, Alexander, — ■ that, in fact, the money advanced to make the purchase was but a loan from Woolley to Alexander; but this is distinctly denied by appellees. On the contrary, they claim that the principal of the note, and all just or legal interest thereon collectible by law, were, long before that time, fully paid.
*193Alexander and Woolley are both dead. The former died in November, 1867, and the latter in 1872, and the executors of Woolley filed the present bill on the 1st of March, 1877, lacking ten days of being twent}r-one years after the making of the note and mortgage. Appellants admit there has been paid on the mortgage debt $1110.75, while appellees claim there was paid on it altogether, on the 13th of August, 1861, $1228.13, which was before the purchase of Mrs. Tedford, and this, they insist, fully discharged the note. There is no evidence, in our judgment, tending to show that at the time of the conveyance to Mrs. Tedford this mortgage was in any manner recognized as an existing incumbrance, much less to show an undertaking on her part to assume its payment.
The special contract between Alexander and Keneagy, fixing the rate of interest at the time of the loan at twenty per cent, so far as it provided for the payment of interest in excess of that allowed by law, was in violation of the express provisions of the statute, and was absolutely void, and consequently could not, by any subsequent repeal of the law which governed the contract at the time it was entered into, make it valid or binding upon the parties. The contract, to that extent, was not only invalid, but the lender was, by reason of it, obnoxious to a penalty of three times the amount of the interest reserved. This penalty, however, until enforced, was subject to legislative control. It was competent for the legislature to abolish the penalty by a repeal of the'law which imposed it, and this was, in part, done by the act of 1857. This act was a general revision of the Interest law, by which the penalty for contracting for usurious interest was so modified as to extend to the whole of the interest reserved, and not to three times the interest, as provided for under the act of 1845, which was in force at the time the present contract was made. By the 4th section of the act of 1857 it is expressly provided, “ that all laws in conflict with this law, and all laws providing for penalties for taking or contracting for more than the legal rate of interest, are hereby repealed.” *194While this provision, when considered alone, would seem to be an absolute repeal and abrogation of the penalty imposed by the act of 1845, yet, when it is viewed in connection with the other provisions of the-act, and the manifest object of the legislature in changing the law, we are of opinion it was intended, so far as past transactions were concerned, as a mere reduction or modification of the penalty imposed by that act,— or, in other words, it was intended, so far as existing usurious contracts were concerned, as a substitute for the penalty imposed by the act of 1845; and this, we are of opinion, it was competent for the' legislature to do. The power to release a penalty by a repeal, or partial repeal, of the statute imposing it, or by the enactment of a direct provision for that purpose, which is a power universally conceded, necessarily includes the power to release or abrogate a part of such penalty, and this power remains so long as any portion of the penalty exists and has not been enforced. But the-legislature has no power to substitute one penalty for another except where that which is substituted is, as in the present case, in effect a mere reduction or modification of the original penalty, °and where a penalty is once released or abrogated it ceases to be subject to legislative control.
Inasmuch as the act of 1849, which was in force at the time of the execution of the note in question, authorized the parties to contract for interest on the money actually loaned, at the rate of ten per cent per annum, we are of opinion that the contract, to that extent, was valid and binding on the mortgagor and those claiming under him; but as to all interest in excess of that, the contract was void.
That - a contract maybe invalid in part, and good and obligatory as to the residue, is a familiar doctrine of the law of contracts, and has frequently been recognized by this court.
Where usurious interest has been reserved, and the debtor makes payments to be applied on the note or other instrument providing for such usurious interest, without specifying *195how they are to be applied, the law will apply them to that part of the indebtedness which the debtor is legally bound, to pay, and not to that which he is under no legal obligation to discharge; and where, in such case, the law imposes a penalty on account of reserving unlawful interest, which operates as a forfeiture of the whole or a part of the interest reserved, and the debtor, while such penalty is in full force, and after the claim has matured, from time to time makes payments thereon until such payments are equal to the amount of the claim, less the amount of the forfeited interest, the debt will thereupon become actually extinct, and if such claim was secured by mortgage, a purchaser of the mortgaged premises after such payments will take them free and discharged of the mortgage lien. The creditor can not, under such circumstances, lie by, waiting for years for the legislature to pass some general act by which the penalty will be released, and then proceed against the mortgaged premises in the hands of a purchaser who has, in good faith, paid full value therefor, and recover upon a claim to which there was, before such repeal, a complete defence.
In the view we take of this case, we deem it unnecessary to consider the act of 1867, or the construction which it should receive. Under the rule above laid down, we are of opinion the weight of evidence shows that before the conveyance to Mrs. Tedford, Alexander had fully paid all of the mortgage debt that was recoverable by law, and the mere fact that he and his legal representatives may have made payments after that time, can not at all affect the rights of those claiming under her. The conclusion here reached is believed to be in harmony with well recognized principles of law and the previous decisions of this court. Farwell v. Meyer et al. 35 Ill. 40; Pike v. Crist et al. 62 id. 461; Parmelee et al. v. Lawrence, 44 id. 406; same v. same, 48 id. 331.
It is claimed, however, that the purchase of this claim by Woolley from Keneagy was made at the instance of Alexander, and that the money advanced by the latter to make it *196was but a mere loan to the latter. We do not think the weight of the evidence sustains this view; but even if it did, we are unable to see how Mrs. Alexander can be affected by that fact, for Woolley’s purchase of the claim was some four years after Alexander’s conveyance to Mrs. Tedford, .through whom Mrs. Alexander claims. If Alexander, before the conveyance to Mrs. Tedford, paid off all of ICeneagy’s claim that was then collectible by law, as we have already found he did, Alexander could not, by any subsequent act of his subject the premises to any further liability on account of that claim. This proposition is too clear to admit even of serious consideration.
Upon the whole, we think substantial justice has been done in the case, and the decree of the Appellate Court will, therefore, be affirmed.
Decree affirmed.