Complex sentence: According to Scrivener the manuscripts presents "a text full of interest, and much superior to that of the mass manuscripts of its age", and there are a "few manuscripts of the 12th century will be found to equal it in weight and importance".
Split into simpler sentences: According to Scrivener the manuscripts presents "a text full of interest, and much superior to that of the mass manuscripts of its age". "Few manuscripts of the 12th century will be found to equal it in weight and importance".