???? In that state of things the reservoir of the Defendants was constructed. It was constructed by them through the agency and inspection of an engineer and contractor. Personally, the Defendants appear to have taken no part in the works, or to have been aware of any want of security connected with them. As regards the engineer and the contractor, we must take it from the case that they did not exercise, as far as they were concerned, that reasonable care and caution which they might have exercised, taking notice, as they appear to have taken notice, of the vertical shafts filled up in the manner which I have mentioned. However, my Lords, when the reservoir was constructed, and filled, or partly filled, with water, the weight of the water bearing upon the disused and imperfectly filled-up vertical shafts, broke through those shafts. The water passed down them and into the horizontal workings, and from the horizontal workings under the close of the Defendants it passed on into the workings under the close of the Plaintiff, and flooded his mine, causing considerable damage, for which this action was brought.
???? The Court of Exchequer, when the special case stating the facts to which I have referred, was argued, was of opinion that the Plaintiff had established no cause of action. The Court of Exchequer Chamber, before which an appeal from this judgment was argued, was of a contrary opinion, and the Judges there unanimously arrived at the conclusion that there was a cause of action, and that the Plaintiff was entitled to damages.
???? My Lords, the principles on which this case must be determined appear to me to be extremely simple. The Defendants, treating them as the owners or occupiers of the close on which the reservoir was constructed, might lawfully have used that close for any purpose for which it might in the ordinary course of the enjoyment of land be used; and if, in what I may term the natural user of that land, there had been any accumulation of water, either on the surface or underground, and if, by the operation of the laws of nature, that accumulation of water had passed off into the close occupied by the Plaintiff, the Plaintiff could not have complained that that result had taken place. If he had desired to guard himself against it, it would have lain upon him to have done so, by leaving, or by interposing, some barrier between his close and the close of the Defendants in order to have prevented that operation of the laws of nature.
???? As an illustration of that principle, I may refer to a case which was cited in the argument before your Lordships, the case of Smith v. Kenrick in the Court of Common Pleas 7 CB 515 .
???? On the other hand if the Defendants, not stopping at the natural use of their close, had desired to use it for any purpose which I may term a non-natural use, for the purpose of introducing into the close that which in its natural condition was not in or upon it, for the purpose of introducing water either above or below ground in quantities and in a manner not the result of any work or operation on or under the land, ? and if in consequence of their doing so, or in consequence of any imperfection in the mode of their doing so, the water came to escape and to pass off into the close of the Plaintiff, then it appears to me that that which the Defendants were doing they were doing at their own peril; and, if in the course of their doing it, the evil arose to which I have referred, the evil, namely, of the escape of the water and its passing away to the close of the Plaintiff and injuring the Plaintiff, then for the consequence of that, in my opinion, the Defendants would be liable. As the case of Smith v. Kenrick is an illustration of the first principle to which I have referred, so also the second principle to which I have referred is well illustrated by another case in the same Court, the case of Baird v. Williamson 15 CB(NS) 317 , which was also cited in the argument at the Bar.
???? My Lords, these simple principles, if they are well founded, as it appears to me they are, really dispose of this case.
???? The same result is arrived at on the principles referred to by Mr. Justice Blackburn in his judgment, in the Court of Exchequer Chamber, where he states the opinion of that Court as to the law in these words: ?We think that the true rule of law is, that the person who, for his own purposes, brings on his land and collects and keeps there anything likely to do mischief if it escapes, must keep it in at his peril; and if he does not do so, is prim? facieanswerable for all the damage which is the natural consequence of its escape. He can excuse himself by shewing that the escape was owing to the Plaintiff’s default; or, perhaps, that the escape was the consequence of vis major, or the act of God; but as nothing of this sort exists here, it is unnecessary to inquire what excuse would be sufficient. The general rule, as above stated, seems on principle just. The person whose grass or corn is eaten down by the escaping cattle of his neighbour, or whose mine is flooded by the water from his neighbour’s reservoir, or whose cellar is invaded by the filth of his neighbour’s privy, or whose habitation is made unhealthy by the fumes and noisome vapours of his neighbour’s alkali works, is damnified without any fault of his own; and it seems but reasonable and just that the neighbour who has brought something on his own property (which was not naturally there), harmless to others so long as it is confined to his own property, but which he knows will be mischievous if it gets on his neighbour’s, should be obliged to make good the damage which ensues if he does not succeed in confining it to his own property. But for his act in bringing it there no mischief could have accrued, and it seems but just that he should at his peril keep it there, so that no mischief may accrue, or answer for the natural and anticipated consequence. And upon authority this we think is established to be the law, whether the things so brought be beasts, or water, or filth, or stenches.?
???? My Lords, in that opinion, I must say I entirely concur. Therefore, I have to move your Lordships that the judgment of the Court of Exchequer Chamber be affirmed, and that the present appeal be dismissed with costs.