It shall not be necessary for the plaintiff to deraign title beyond a common source. Proof of a common source may be made by the plaintiff by certified copies of the deeds showing a chain of title to the defendant emanating from and under such common source. Before any such certified copies shall be read in evidence, they shall be filed with the papers of the suit three days before the trial, and the adverse party served with notice of such filing as in other cases. Such certified copies shall not be evidence of title in the defendant unless offered in evidence by him. The plaintiff may make any legal objection to such certified copies, or the originals thereof, when introduced by the defendant.