1. Tax sale—' Assessor’s oath. It is not material to determine whether - rf% r t _ the office of assessor becomes vacant, as of course, upon failure of the person claiming the office to take the special oath prescribed by section 5661 of Mansfield’s Digest, as was held by the learned judge of the federal court for this circuit in the case of Martin v. Barbour, 34 Federal Rep., 701; or whether the use in the statute (section 5662, ib.) of the language, “the office shall be declared vacant ” in case of failure to take and indorse the oath as the statute requires “ pre-supposes some step to be taken for that purpose,” as was declared by this court in the case of Moore v. Turner, 43 Ark., 250.
The person performing the duties of the office, was assessor de jure or else de facto, and in neither case can the title to the office be inquired into in a proceeding like this to which the officer is not a party. We have sustained the *83acts of officers de facto in judicial positions where the liberty, as well as the property, of individuals was concerned. Keith v. State, 49 Ark., 439; Rives v. Pettit, 4 id., 582. There would seem to be no imperative reason therefore for withholding assent to the application of the same doctrine in tax proceedings, and this court has sanctioned the application of the doctrine to this class of cases. Murphy v. Shepard, 52 Ark., 356; Moore v. Turner, 43 id., 243; Twombly v. Kimbrough, 24 id., 459, 474; Scott v. Watkins, 22 id., 556.
The Supreme Court of the United States has done the same thing in reference to-the office of assessor in a case which arose in the District of Columbia, and in which the court was not embarrassed by any State decision. Ronkendorff v. Taylor, 4 Peters, 349. Judge Cooley says that the clear and very strong preponderance of authority is that way. Cooley on Taxation (2d ed.), pp. 255-6.
The real question in this case may be stated thus: Does the failure to take the special oath set out in section 5661 by an assessor, who has qualified by taking the general oath prescribed by the constitution to faithfully discharge the duties of his office, render invalid the deed made in pursuance of the tax sale.
It is argued that, as this oath might have been dispensed with by the legislature in devising a system for the collection of the revenue, the effect of section 5782 of Mansfield’s Digest is to cut off the opportunity of making the objection after the deed is executed. But, as we find the defect is not fatal to the deed, the case does not afford us the opportunity of determining whether the section mentioned was intended by the legislature as an enactment that the sale for taxes should not be avoided except for the causes therein specified; or whether it was an attempt on the part of the legislature to make the clerk’s deed, when “ executed substantially ” as the act requires, conclusive evidence of a valid sale, when in fact the sale, by a fair construction of the act, was invalid, and should be declared so without reference to *84the lapse of time, if no deed had been executed in substantial compliance with the act. In the latter event the section would fall under the ban of the ruling in the case of Cairo, etc., R. Co. v. Parks, 32 Ark., 131; otherwise it would operate as it was indicated it might, in Radcliffe v. Scruggs, 46 Ark., 96.
The only reference to real estate contained in the special oath is that it shall be appraised at its “ actual cash value otherwise the oath relates to personal property only. Another provision of the statute (section 5675 Mansf. Dig.) requires the assessor to appraise real estate at its true value in money, and not at what it would bring at auction or forced sale ; and he is required to make affidavit to his return to the assessment roll that he has so valued each tract. Mansf. Dig., Sec. 5676. The special oath binds the assessor to appraise real estate at its actual cash value, without indicating any standard by which that value shall be fixed ; but that, according to the opinion of Judge Cooley, speaking for the Supreme Court of Michigan, in Silsbee v. Stockle, 44 Mich., 561, is not comprehensive enough to cover the requirement to appraise each tract at its true value in money, without reference to what it would bring at forced sale. If, then, we look to the special oath alone, it is not broad enough to bind the assessor’s conscience to perform his whole duty in appraising real estate; but the general oath is ; and there is nothing in the special oath directing attention to the details in appraising real estate that would probably escape the attention of any officer. In this case the assessor took the general oath required by the constitution, within the time specified by the statute. As no irregularity is shown, other than the one mentioned, it must be presumed that he made return to his assessment roll under oath as the statute directs. We have, then, the conscience of the officer bound in advance by an oath more comprehensive than the one omitted, and also the record evidence required by the statute by a further oath that in the performance of those duties he has actually obeyed •the law. Sec. 5676, supra. How, then, has the landowner *85been prejudiced by the failure to take the special oath? He has had protection enough if reliance is to be placed in ■oaths. But unless he might have been prejudiced by the omission, the deed should not be avoided. Patrick v. Davis, 15 Ark., 363, 370; Radcliffe v. Scruggs, 46 id., sup.
The omission in this case goes no more to the merits than ■did the assessor’s omission to take the oath, passed upon in Radcliffe v. Scruggs, 46 Ark., sup., but that was held to be an irregularity which did not avoid the deed. See, too, Scott v. Watkins, 22 Ark., sup.; Murphy v. Shepard, 52 id., sup.; Moore v. Turner, 43 id., sup. We conclude, therefore, that the court erred in annulling the deed.
2. Practiceas to agreed state»ent. The judgment should have been for the plaintiff on the J agreed statement of. facts. It will be reversed, and the cause remanded with instructions to enter judgment for the plaintiff for possession of the premises. Smith v. Hollis, 46 Ark., 17; Powell v. Holman, 50 id., 85.
It is so ordered.