In -the policy of insurance upon which plaintiff brings this action to recover $600, on account of the total destruction by fire of a school house insured by the defendant, it is stipulated that the policy shall be null and void if, without the written consent of the company, the building be used for other than school and church purposes, or if the risk, without such consent, be increased in any manner, except by the erection and use of ordinary outbuildings; and it is further provided in said policy that the insured shall, within 30 days after a fire, furnish sworn proofs of loss which shall state thetime, origin and circumstances thereof. The issues of fact presented by the pleadings were tried to jury, and resulted in a verdict against the defendant .and in favor of plaintiff for the -full amount claimed. From a judgment accord*460ingly entered, and from an order overruling a motion for a new trial, defendant appeals. At the time the schoolhouse was burned, and for some time prior thereto, the basement of said building contained about 90 barrels of unslacked lime, placed there for storage and allowed to remain with the knowledge and without any objection on the part of the school directors and officers of the district, or either of them. In fact, the undisputed evidence shows that, after the building was insured, and for years before the fire occured, the directors, whose business it was to look after and protect the property of the district, consented to allow other parties to store large quantities of unslacked lime in the basement of the school building, and permitted the key to the door and the possession of the basement to be delivered to parties who placed therein and' stored car loads of lime on different occasions. When the lime that was in the basement at time of the fire was being placed therein, one of the directors, the chairman of the board, saw it, and upon being informed that the retail dealers of the village had habitually used the basement for that purpose, made no objection, and remarked to the men .who were unloading the car that he “guessed it would be all right if the lime was taken out in time to put in the coal. ” During the night immediately preceding the fire, there was a heavy rainfall, so that persons who visited the fire in the morning saw pools of water standing in front of the door of the basement in which the fire originated, and which at the time was filled with steam, emitted from barrels of lime that had apparently yielded to the force of pressure, and smoke which came from burning timbers just over the barrels, and to which the fire was at that time confined. From the location, surroundings, and plan of the building, as well as from the testimony of witnesses, it clearly appears that rain descending upon the roof would fall upon the ground and run into the basement. In fact, before the making of a very narrow ditch,- which was found to be insufficient to carry off the water, the basement was upon several occasions filled with water, so that it remained standing .there a foot deep, and after the drain was'made the water would extend into the basement six or eight *461feet around the door. It is not only a principle of chemistry, but a matter of common knowledge, that water coming in contact with unslacked lime, will produce fire, and to that effect the witnesses without objection testified. In no other rational manner can the presence of steam, filling the entire basement before the fire was observable, be accounted for. Mr. Webster, in defining lime of the character here described, says that “it develops great heat when treated with water.” The undisputed evidence conclusively shows that, without the knowledge or consent of appellant, and by and with the consent and knowledge of the officers of respondent, empowered and authorized to prevent a forfeiture of the policy, persons were habitually permitted to use the building for other than school and church purposes, whereby the risk was greatly increased, and as a result of which the building was finally reduced to ashes. There is no evidence to sustain a verdict and judgment for plaintiff. The examination of other questions is unnecessary. Appellant’s motion to direct a verdict for the defendant, as a matter of law, should have been sustained. The judgment of the trial court is reversed.