“ But after the property has largely increased in value, and after sleeping upon his rights for nearly 12 years, with information during the whole of that period, of every fact now relied upon by him, appellee asks the aid of a court of equity to set aside the sale and conveyance, and adjudge him to be the owner of the property; and, chiefly because of a mistake of the officer in not so describing the premises in the advertisement of sale and in the conveyance, as to properly identify them. In our judgment, he is not in a position to claim the interference of a court of equity. ”

“ While appellant was, perhaps, willing to surrender his purchase, shortly after it was made, if he had been reimbursed his expenditures in connection with the property, there is no satisfactory proof that he ever recognized the legal or equitable right of the appellee or of any one else to deprive him of the full benefit of that purchase. ”

“ Be that as it may, and assuming that the tax deed was invalid, the appellee having gone into possession of lot 7, and improved it, with the consent of his father, and under the latter's promise to convey it to him, he was entitled, at any time after the sale to Richards, to raise the identical questions now presented, as to the invalidity of the sale and conveyance. ”