This is an action on a fire insurance policy to recover the sum of $548.24.

The policy contained the following clause: “Reference is hereby made to a survey and diagram on file in the office of J. C. Mitchell & Son, which is made a part of this policy, and a warranty on the part of the assured.” The application for the policy was made on November *20721st, but was not countersigned or delivered until November 24, 1884. Mitchell & Son, who were insurance brokers, acted on behalf of plaintiffs in procuring the policy, and they promised at the time the application was made to furnish the survey and diagram. The company refused to take the risk unless the brokers would agree to furnish such a survey. A survey and diagram was made by the owners of the property, and a copy thereof, dated December 4, 1884, was presented to the agents of the defendant, but at what precise time it was presented does not appear. On December 3, 1834, the policy was taken to the office of the defendant and the written portion thereof was changed, increasing the amount of the insurance, and another rider, which was duly authenticated and attached, was substituted, which contained the same'reference, quoted above. The survey and diagram consisted of many questions and answers. It was written on the blank form of another insurance company, and was signed “Owens River M. G. & S. Co., by Hoyt & Son, applicants.” The policy ran to the Owens River Iron and Smelting Co. (owners), “loss, if any, payable to Rankin, Brayton & Co.” When this document was offered in evidence, plaintiffs objected to it on the grounds that the insurance had been effected prior to the time the survey was presented to the company, and that Hoyt & Son had no authority to act on behalf of the mining and smelting company. The objection was sustained; the defendant excepted.

The ruling was erroneous. The loss was not payable to the owners of the mine, but to their creditors, Rankin, Brayton & Co., and the question as to the authority of Hoyt & Son is immaterial. Plaintiffs promised to furnish the survey, and it was furnished in accordance with their agreement and became a part of the contract. The admissibility of the evidence does not depend solely upon the reference contained in the rider. The policy itself provides: “For further particulars reference is hereby *208made to an application and survey, No.-, furnished by and a warranty on the part of the assured,'which is hereby made apart of this policy.” The delay of the plaintiffs in furnishing the survey should not he held to entirely destroy its efficacy as a part of the contract. The fact that the survey was not furnished until after the policy was delivered may have deprived it of any force or effect as a warranty, under section 2605 of the Civil Code; but conceding this to be true, it does not destroy its effect as a representation of facts made as an inducement for the issuance of the policy; and as such it is evidence, which the jury should consider on the issue as to rescission. If any of the material representations were false, the defendant’s tender of the premium and notice that the policy was canceled before the commencement of the suit operated to rescind the contract. (Civ. Code, secs. 2580, 2583.)

The policy as first printed and written contained this clause: “It is understood and agreed that during such time as the above mill is idle a watchman shall be employed by the insured to be in and upon the premises day and night.” At the request of the plaintiff this provision was changed by inserting the word “about ” in lieu of the word “upon.” The object of the change doubtless was to avoid any controversy, in case of loss, as to whether it was necessary that the watchman should be actually upon the premises on which the insured buildings stood. The change, however, did not accomplish the full purpose intended; for the watchman slept a distance of three hundred or four hundred feet from the mill; and the word “ about,” as used, is so uncertain in signification that it cannot be determined therefrom exactly what territory was intended to be covered by it. But however uncertain the promissory warranty may be as to the premises upon which the watchman was required to be, there is no ambiguity in the language with respect to the_ time he was required to watch the prem*209ises. Where the language of a policy may be understood in more senses than one, it is to be construed most strongly against the insurer, because he frames it, and is supposed to make it as potent as possible in his own favor; but where there is no imperfection or ambiguity in the language, it must be construed, like any other contract, according to the intention of the parties.

The court instructed the jury that “if the assured employed a watchman to be in and about the premises day and night while the mill was idle, then the plaintiff is entitled to recover,” and submitted to them for determination the question whether plaintiffs had performed the conditions of the contract. Cases are cited by respondent in support of the action of the court which hold that under certain watchman clauses it is proper to receive evidence of usage and to submit to the jury the question whether the insured employed a watchman to look after the property in the manner in which men of ordinary care in similar departments of business manage their own affairs of like kind. But they all go off upon the proposition that the terms of the warranty are not explicit as to the time and manner of keeping a watch. Thus in the Massachusetts case, the language of the clause was, “a watchman kept on the premises”; and in the Illinois case, “a watchman to be on the premises constantly during the time until September 1, 1872.” In the latter case plaintiff had employed a day-watchman and a night-watchman, and the only question considered was, w'hether it was necessary for the watchman to be actually on the premises on which the insured buildings were situated.

In the case before us the terms of the warranty are explicit as to the time of keeping a watch, and on the undisputed evidence we think the court ought to have held that the plaintiffs had not complied therewith.

The mill was idle for two months prior to the destruction thereof by fire, and the evidence shows that plain*210tiffs did not employ a watchman “to be in and about the premises day and night.” A watchman was employed, but he was not instructed to watch the premises at night, and as a matter of fact, slept every night in a building distant three hundred or four hundred feet from the mill. Mr. Minear, the superintendent, testified that McMurray, the watchman, was not instructed to watch the premises during the night; that his instructions were not special, “either at day or night.” In the nature of things, it could not be expected that one man could watch the buildings day and night (only one watchman was employed); but if it be assumed that he could, no one was employed to do so. There is no ambiguity in the phrase “day and night.” “We do not need a dictionary, nor a law boob, nor the testimony of an expert, to tell us that a man who is employed to watch in the daytime, and who is permitted to sleep at night, is not a watchman at night.” (Brooks v. S. F. Ins. Co., 11 Mo. App. 349; Glendale M. Co. v. P. I. Co., 21 Conn. 39; 14 Am. Dec. 309.) It is not a case of mere negligence. If a loss is occasioned by the mere fault or negligence of the watchman, unaffected by fraud or design on the part of the insured, it is within the protection of the policy; but to entitle the insured to recover, it must appear that he has in good faith employed a watchman to perform the duties required by the terms of the warranty. (Trojan Mining Co. v. Fireman’s Ins. Co., 67 Cal. 27; Wenzel v. Commercial Ins. Co., 67 Cal. 438; Cowan v. Phoenix Ins. Co., 78 Cal. 181; Waters v. Merchants’ etc. Ins. Co., 11 Pet. 219.)

It does not appear whether the watchman was actually on duty at the time the fire occurred. If the fact be considered as material, it is sufficient to say that defendant having shown the mill was idle, the burden of proving a compliance with the warranty rested upon the plaintiffs. (Cowan v. Phoenix Ins. Co., 78 Cal. 181; Wood on Fire Insurance, 2d ed., p. 1136.)

*211The judgment and order are reversed, and the cause is remanded for a new trial.

Garoutte, J., Harrison, J., De Haven, J., and McFarland, J., concurred.

Beatty, J., concurring.—I concur in the judgment, and in the conclusion that the evidence does not show that a watchman was employed as stipulated.