Complex sentence: The new legal structure provided a single Court of Appeal, which heard appeals from all the various Divisions of the new unified High Court of Justice, but only in civil cases (opportunities for appealing in criminal cases remained limited until the 20th century).
Split into simpler sentences: The new legal structure provided a single Court of Appeal, which heard appeals from all the various Divisions of the new unified High Court of Justice. It only heard civil cases (opportunities for appealing in criminal cases remained limited until the 20th century).