This action was not commenced until more than three months had elapsed following the date of the injury alleged. It is provided by Code, section 3447 — a part 1. Pleadings. limitation. of the general statute of limitations — that actions founded on injury to the person on account of defective sidewalks, etc., must be brought within *431three months, unless written notice specifying the time, place, and circumstances of the injury shall have been served upon the municipal corporation to be charged within sixty days from the happening of the injury. We think it sufficiently appears that a notice, as contemplated by the statute referred to, was served in this case, and within the time prescribed. The abstract is not clear upon the point, but it is admitted in argument by counsel for appellant that the notice, a copy of which is attached to the petition, -was served in time; and evidently the trial proceeded in the court below upon that assumption. No objection is made to the notice as to the subject-matter therein stated, save that the street upon which the injury is said to have occurred is designated as Center street, whereas the evidence shows that the street was College avenue. But in an amended abstract filed by appellee it appears that upon the trial it was conceded that Center street and College avenue were one and the same. Having said this much, we may add that appellant is not in position, in any event, to object at this time to the sufficiency of the notice,, or the fact of the service thereof. No such question was made in the trial court, and it cannot be raised here for the first time. The answer was a general denial. If defendant expected to rely upon the limitation statute, it should have pleaded the same. Not having done so, it must be ^ald to have waived the benefit thereof. Harlin v. Stevenson, 30 Iowa, 371; Brush v. Peterson, 54 Iowa, 243.
II. Appellant complains of the giving of the third instruction, in that therein the court assumed to direct the jury as to each of the elements of fact essential to a recovery on the 1. Instruction. notice of injury. .part of plaintiff, and failed to include therein /. . ,, . any reierence to the preliminary notice required to be given by the limitation statute. In this there was no error. The service of notice as required by Code, section' 3447, is not a matter that inheres in or constitutes a part of the cause of action. In common with all other pure statutes of limitation, it affects the remedy only. Meek v. Meek, 45 Iowa, 294; Barke v. Early, 72 Iowa, 273. No question hav*432ing been raised upon tlie trial as to the sufficiency of the subject-matter of the notice, or as to the fact of the timely service thereof, there was no question having relation thereto propet to be submitted by the court to the jury.
III. Complaint is made of the eighth instruction given by the court to the jury. Therein it is said, in substance, that if the Avalle where it is alleged plaintiff fell Avas not in a rea-3. Defective walks: discovery. sonably safe condition by reason of defective . ’ .. . stringers ana boards, and that sncli a condition had existed for such a length of time before the accident to plaintiff that the defendant, by the exercise of reasonable diligence, should havn discovered the same, then defendant Avould have what is called “constructive notice” of such condition. Counsel seem to think tha.t the instruction announces the rule that it is incumbent upon cities to search for and make discoAmry of latent or hidden defects in order to avoid liability. We do not think such construction can be put upon the language of the instruction. In so many words the court told the jury that the defendant city Avas bound to use reasonable diligence in making discovery of existing defects, and such is clearly the law of this state.
IV. The defendant requested an instruction to the effect •that if the street commissioner, Avhose duty it Avas to inspect and examine the sidewalks of the city, two or three days be-4 instruction: refusal of. fore accident of which plaintiff complains, examine the walk in question, and did not find the same defective or out of repair and unsafe, and that in making such examination he exercised reasonable care and caution, then the defendant would not be liable. Complaint is made of the refusal by the court to give such instruction. We think no prejudicial error was involved in such ruling. We may concede that from the facts stated in the request, if found to be true, the jury would have been warranted in finding as a conclusion that the city had exercised reasonable diligence, as required of it, and, inasmuch as there Avas eAÚdonce tending to establish the facts stated, no error would have been involved in the giving of an instruction *433as requested. But tbe court, in tbe instructions given, in unmistakable language correctly and fairly defined tbe duty and obligation incumbent on tbe city and tbe degree of care and caution required of it by law. We think tbe instructions given covered tbe whole ground, and thereunder the jury. were required to take the facts as they were made to appear, and so determine tbe question at issue. We have frequently held that it is not error to refuse instructions asked where tbe subject is properly covered by instructions given by tbe court. Raver v. Webster, 3 Iowa, 502; Minthon v. Lewis, 78 Iowa, 620.
V. It is urged that tbe verdict is not warranted by tbs evidence. We think otherwise. No good purpose could be subserved by setting forth in this opinion tbe evidence upon which we base our conclusion. It will be sufficient to say, that there is evidence in tbe record from which tbe jury may well have found that tbe city was negligent as charged, that an accident occurred as alleged, and that plaintiff did not contribute thereto by her own negligence. That plaintiff was severely injured cannot be doubted, and it is not suggested ip argument that tbe verdict is excessive.
We have examined tbe record with respect to all other errors assigned, and find no merit in any of them. It fob lows that tbe judgment must be and it is aeeikmed, ' j
Weaves, J. taking no part.