Dewey, J.
It is certainly true that for an injury to his real *13estate, the party cannot maintain trover. That form of action is appropriate exclusively to the recovery of damages for the unlawful conversion of personal property. But this being granted, the further inquiry is, whether the three hundred ana ninety four squares of earth severed from the land of the plaintiffs, and removed from the same and sold to the defendants, and used by them, was at the time of such purchase by the defendants, and use of the same, still a part of the realty, and retained unchanged its character as such, or whether by the act of separation in fact, and a removal of the earth to a distant place, it has not changed the character of the earth so removed to that of personal property. It seems- to us that it is very well settled that whatever is severed from the land,— as, in the familiar case of standing timber trees—if such trees being a part of the realty, are cut down, they cease to be real estate and become personal. But this transmutation, while it changes the character of the property in this respect, does not change its ownership. It would not do so if cut down by the owner of the land, and not any more so, by being cut down by a person entering unlawfully upon the land and making the severance. It is the actual severance that changes the property from real to personal, and that irrespective of its being done with, or without, the consent of the owner of the land. And in this respect we see no distinction between removing living trees, deriving their nourishment from the earth, and the removal of a portion of the earth itself.
It is next objected that the plaintiffs, by bringing this action of trover, and waiving their action of trespass quare clausum, have adopted and sanctioned the original act of trespass, and therefore cannot maintain this action against one who purchased the earth bond fide of the trespassers. We do not perceive that any such waiver appears. It is true that the plaintiffs have not elected to institute an action of trespass quare clausum against the original wrong doers. But as regards these defendants, who have the property of the plaintiffs without right, nothing is waived; they did not commit any trespass upon the plaintiffs’ land, and no action could have been maintained against these defendants therefor. Theii *14first connection with the plaintiffs’ property was after it had been severed from the realty, and the only mode of enforcing a claim against them for the value of the same is by a personal action. If the plaintiffs have not this remedy, they are remediless as to any recovery against those who have received and converted to their own use their property. Take the case of valuable timber trees, cut down and carried away from the land, and sold by a mere trespasser. Is the owner of the same deprived of all remedy against any person who may have received these timber trees by purchase from the trespasser ? He is so, unless trover will lie; for trespass quare clausum will not lie against such purchaser.
It is further contended that if the defendants were bond fide purchasers, and without notice of the trespass, the plaintiffs must prove a demand on the defendants and a refusal by them to redeliver before the commencement of the action. The court ruled upon this point, if such purchase was made in the manner above stated, yet if they received the earth from the trespassers by a purchase for their own use, and directed that the same be deposited on the filling ground, they would be liable without any such demand and refusal. This ruling may be fully supported upon the ground of a conversion in fact of the earth, and the impracticability of a redelivery of the earth after it had become thus intermingled with the soil of the land on which it was placed, and had b 3Come a part of the solid earth. Whenever there has been an actual conversion, or whenever the property has been thus appropriated, it is evidence of a conversion which supersedes the necessity of any demand. This view is to us a satisfactory answer to the objection here urged, that there was no proof of a demand. But upon other grounds, under the late decision of this court in the case of Stanley v. Gaylord, 1 Cush. 536, a case where the whole subject was much considered, and where the court came to the result that a bond fide purchase from one who had the actual possession of the property, but without any right to retain possession as against the lawful owner, and actual taking the same under such purchase into the custody and control of the *15purchaser; would subject him to an action of trespass or trover at the suit of the lawful owner, without any previous demand.
Exceptions overruled.