Use of such deposition.
Section 375
SEC. 375. Use of such deposition. — If a trial be had between the parties named in the petition as parties expectant, or their successors in interest, or between any parties wherein it may be material to establish the facts which such deposition proves, or tends to prove, whose interest was unknown to the party taking the deposition at the time of taking, upon proof of the death or insanity of the witnesses, or that they can not be found, or are unable, by reason of age or other infirmity, to give their testimony in court, the depositions, or certified copies thereof, may be used by either party, subject to all legal objections; but, if the parties attended at the examination, no objections to the form of an interrogatory can be made at the trial, unless the same were stated at the examination.