Upon the rendition of such judgment, if against the defendant, the clerk of said court shall issue a special fieri facias, describing the property against which such judgment is rendered and directed to the sheriff, commanding him to advertise and sell said property, or so much thereof as may be necessary to pay said judgment and subsequent costs, in the same manner as sheriffs may do under ordinary executions; and said sheriff shall, upon such sale, execute and deliver to the purchaser of such railroad property a deed of conveyance therefor, which shall be acknowledged before the circuit court as in ordinary cases, and shall convey the title in fee to such purchaser of the property therein named, which deed shall be prima facie evidence of title, and that the things therein stated are true. The net proceeds of said sale shall be paid over to the county collector, and by him credited to the proper funds.