This case is now before the Court upon its merits, the preliminary questions made in it having been decided when the case was formerly before us. Prairie v. Jenkins, 75 N. C. 545.
The plaintiffs are sureties upon the bond of the Sheriff of Wake County, for the collection of the public taxes, which bond was executed to the State, on the 1st of September, 1873, with the following conditions, to-wit.; “ Whereas, the above bounden Timothy F. Lee, has been duly elected and appointed Sheriff of the County of Wake, now if the said Timothy F. Lee shall well and faithfully collect, pay over and settle the public taxes as required by law, during his •continuance in the office ®f said Sheriff, then in that case the above obligation to be void, otherwise to be in full force .and effect.” By law it was the duty of the Sheriff to collect the taxes and settle with the Treasurer of the State, on or before the first Monday in December, 1873. He failed* to do *171■so. But on the first day of December of the same year, an Act of the Legislature was passed and ratified, in the words following, viz: “That the Sheriffs or other accounting officers the several Counties of this State, be allowed until the first Monday in January, 1874, to settle their State tax accounts for the year 1878, with the Auditor, and pay the amount for which they are liable, to the Treasurer of the State; Provided, That said Sheriffs and other accounting officers, pay in and settle three fourths of the said taxes as now. required by law, and further amount of taxes actually collected ; Provided, That no Sheriff taking benefit under the provisions of this Act, shall be entitled to mileage for settlement of the deferred taxes.”
“ That this Act shall be in force from and after the 17th of November, 1873.” Laws of 1873-74, ch. 4.
The plaintiffs contend, that by virtue of this statute there was such an extension of time and forbearance of suit by the State, that the sureties on the bond were discharged. Before such an effect can be given to the statute, it must appear that its conditions have been performed as stipulated ; for an agreement based upon a condition which is uncom-plied with, is not binding and does not discharge those who stand in the relation of sureties, but leaves all the parties unaffected as though the Act had never passed; just as an unaccepted offer is no offer at all. 2 Daniel on Neg. Instr. § 1318. To give effect to the statute, as an extension of the time of settlement, “ three fourths of the taxes, as now required by law,” were to be paid, that is, they were to be paid on or before the first Monday in December, 1873, which was the time specified by law for the settlement of the public taxes. The ease states that they were not paid until the tenth of December. It follows, that the proposition of the State not having been accepted, it incurred no obligation of indulgence. It is no answer to say that although the required sum was not paid at the time specified in the proviso of *172the statute, yet it was paid to and accepted by the State, a few days after, and that the acceptance was a waiver of strict performance of the conditions of the Act. By the non-performance of the conditions, the whole tax became due and collectible. The acceptance of a part of the debt when the whole is due cannot be construed into a waiver of the right to collect the remainder.
Nor can the sureties take any benefit under the resolutions of the Legislature, adopted on the 16th of February, 1874, purporting to extend the time of the settlement of the one fourth of the over-due taxes, to the 1st of April, 1874; for the reason, that those resolutions also have a proviso, requiring as a condition precedent, that the Sheriff should pay certain costs upon an action then pending for these taxes. The case does not show that these costs have been paid. There are other fatal objections to these resolutions operating as an extension of time to collect the taxes, for the non-collection of which a judgment had already been taken.
If the Sheriff had brought himself within the proviso of the Act of December the first, Laws of 1873-’74 ch. 4, by a compliance with the conditions precedent, it does not follow that the sureties upon his bond, would then have been discharged. A distinction is made between private bonds, individual and corporate, and public official bonds, given to secure the perfermance of continuous public duties, affecting the general welfare. The collection of public taxes must be conducted under the continuous supervision and control of the legislative branch of the government. The laws affecting the assessment and collection of the public revenues, must be from time to time made more or less rigorous in their enforcement, or otherwise modified to conform to the existing condition of the country, the depression of trade, the failure of crops, the scarcity of mo'ney and other causes, often delicate and complex, as affecting the sensitive subject of taxation. The power which imposes the burden of *173taxation, is the sole power that can legally indulge, mitigate or suspend the assessment and collection of the revenues. Every collecting officer therefore accepts office and gives bond, affected with notice and subject to the exercise of this right of sovereignty. It enters inte and becomes a part of the contract with the State, and is as binding upon the bondsmen, as any express condition of the bond. The Sheriff took the office and executed the bond, subject to the power of the Legislature to control its duties, as the public .good might require. Bunting v. Gales, 77 N. C. 283; Hoke v. Henderson, 4 Dev. 1; Head v. University, 19 Wall. 526; Cotten v. Ellis, 7, Jones 545; Cooley on Taxation 502; State v. Carleton, 1 Gill. (Md.) 249-57; Bennett v. The Auditor, 2 W. Va. 441.
It can admit of no doubt that in passing the Act relied on by the plaintiffs, the legislature never intended to release the sureties on the bonds of every Sheriff in the State ; for the Act applies to all. It is equally evident that the sureties did' not believe they had been released, and that in this case it was an after-thought; for not only was judgment taken on the bond in January, 1874, and an execution thereon issued in May following, which was levied on all the property of the sureties, real and personal, but in fact $4.-000 had been paid or collected under the execution, from whom is not stated. In December, 1874, another execution was issued to collect the remainder of the judgment, and again levied on the property of the sureties, which was advertised for sale ; and it was not until the 29th of March, 1875, that they awoke to the belief that they had been discharged as sureties, as long back as 1873. If this proceeding had been a motion to vacate the judgment in the proper Court, after that delay and under such circumstances, we presume that the Court below would not have granted it.
We do not decide that the plaintiffs should not have *174sought relief by a motion in the cause, which in general is the appropriate remedy; because it is the interest of the State and desire of the parties, that the case should be disposed of upon the merits. Thei plaintiffs therefore pro hae vice can have the benefit of the jurisdiction, and as they have no merits, the action will be dismissed.
There is error.
Per Curiam. Judgment reversed and action dismissed.