Happy Feast Day of St. Catherine of Alexandria!
From The Dominican Missal in Latin and English (Oxford: Blackfriars Publications, 1948), here is the Mass for the Feast of St. Catherine of Alexandria, Virgin and Martyr, whom the Sacred Order of Friars Preachers venerated as their Protectress on account of her celestial patronage on behalf of students and preachers of sacred theology and philosophy.