Concurring Opinion.
White, J.I concur in the decree in this case, but not in the opinion. Inasmuch as the Court finds that the proof required by C. C. 1655 has been adduced I do not join in-the opinion because it expresses views as *323to what would be the rule were such testimony not in the record, thereby passing on a purely hypothetical issue — not necessary to be decided— not involved in the conclusions leading to the decree. In my judgment a safe rule for courts is to express opinions only as to indispensable matters, and not by anticipation to put of record opinions to govern cases which may arise.