Notes on Book of Genesis (Author Bishop Richard Challoner (ed.))
3:15 She shall crush: Ipsa, the woman; so divers of the fathers read this place, conformably to the Latin: others read it ipsum, viz., the seed. The sense is the same: for it is by her seed, Jesus Christ, that the woman crushes the serpent's head.
Original Douay-Rheims from Project Gutenberg - Massive cleanup of OCR problems and editing done locally.