¶1On Petition for Rehearing.
¶2delivered the opinion.
¶3
¶4The question to be considered is whether the court erred in not receiving the testimony so offered. To avoid the presumption that higher evidence would be adverse from inferior being produced (Hill’s Ann. Laws, §776, subd. 6), a party is expected to furnish the best evidence obtainable. When primary evidence of a material fact cannot by a reasonable effort be secured, secondary evidence of the contents thereof is often admissible. Thus, the rule that there shall be no evidence of the contents of a writing other than the writing itself is subject, among others, to the following exception: “When the original cannot be produced by the party by whom the evidence is offered, in a reasonable time, with proper diligence, and its.absence is not owing to’ his neglect or default”: Hill’s Ann. Laws, §691. No precise rule can be prescribed as to what shall be considered a reasonable effort, but the party alleging the loss or'destruction of a document must show that he has in good faith exhausted in a reasonable degree all sources of information and means of discovery which the nature of the ease would suggest, and which are accessible to him: Wiseman v. Northern Pac. R. Co., 20 Or. 425 (26 Pac. 272, 23 Am. St. Rep. 135). It will be remembered that Harmon testified that the statement of account was last seen in the court house at Grants Pass, about a year prior to the trial, which was held November 20, 1899. His testimony fails to show, however, that he made any examination of the papers on file at the court house in said county, unless such fact is to be *599inferred from his affirmative answer to the question: “Have you searched in all places where it could be, to your knowledge ?” The answer to this interrogatory must be held insufficient, for otherwise the witness, and not the court, would be the judge of the places to be examined for the discovery of lost documents. Harmon says he “searched all the files and records,” which, at a casual glance, might seem to imply that he had made an examination of the papers on file at the court house in said county in the matter of the estate of Horace Gasquet, deceased; but by limiting the investigation to “all papers that I have in my office” he necessarily excludes an examination of the papers at the court house where the statement of account was filed. The document having been filed in the proper office, search should have been made in such office to rebut the presumption that it remains there: Hill’s Ann. Laws, §776, subd. 33; Jones, Ev. § 213. No direct testimony having been offered to the effect that the court house had been searched for the discovery of the missing paper, the plaintiff failed to make the showing required, in order to let in secondary evidence of the contents of the statement of account, and no error was committed in its exclusion.
¶5
“To amt. of note................................$5,448.51
To interest on same, 14 mo. @ 6% per annum...... 381.39”
¶6leaving, as apparently due him, after deducting certain payments made by Decker, a remainder of $4,564.62, the interest upon which, for the year ending December 31, 1890, is $288.21. The account is balanced each year, and the new principal forms a base upon which interest is charged, as follows: 1891, $373.87; 1892, $227.35; 1893, $195.06; 1894, $182.13; 1895, $157.36,— leaving due March 1, 1896, as disclosed by Gasquet’s account, $2,908.08, but according to the defendant’s books only $382.14, for which judgment was given. The instruction complained of presents the question whether Decker’s entry in his books of the annual interest, which coincided with Gasquet’s account thereof, affords a conclusive recognition of the debt and a promise to pay the sum upon which such interest is calculated. The fact that in consequence of certain payments made by him the annual interest charge was constantly diminishing is a circumstance tending to show that he promised to pay the principal originally charged to him, and hence rendering him liable for the sum found to be due March 1, 1896, as disclosed by Gasquet’s books. While such circumstance raises an inference in favor of plaintiff’s theory of the case, we do not think it irresistibly follows that because Decker recognized the interest by annually entering in his books' a memorandum thereof he thereby in the absence of any testimony upon the subject, conclusively evidenced a promise to pay the principal upon which such interest is calculated. Interest is ordinarily an incident of and follows the principal upon which it is based, the latter being the substance and the former its shadow; but because the interest is an incident of the principal it does not irresistibly lead to the conclusion that the principal follows the interest. It would appear from Gasquet’s books that the debt with which Decker was charged was originally incurred on account of certain buildings conveyed by George W. and W. J. Wimer to Gasquet. No evi*601dence was introduced tending to show that these buildings ever became the property of Decker, or that he agreed to purchase them, or that any consideration ever existed for the debt so charged to him. If Decker had agreed to purchase the property, the fact could undoubtedly have been established without resorting to such an indirect method of inferring the existence of the debt as by a mere credit upon his books of an annual interest thereon; for it may be that such interest was the rent agreed to be paid for the use of the buildings. We think the court’s charge was warranted by the evidence, and no error was committed in giving it. It follows that the petition for rehearing is denied. Eehearing Denied.