.
The Latin Preface in your version here, proper to this BVM Mass, ends with this:
"cuм quibus et nostras voces dicéntes:"
However, my missal has this in the same spot:
"cuм quibus et nostras voces, ut admitti, jubeas, deprecamur, supplici confessione dicéntes:
The underlined words from my missal are omitted in your version.
.