In Michael Gorman's book, Abortion and the Early Church, pg. 17 fn. 19, he cites "Origen Against Heresies 9". But I cannot find a work by Origen called Against Heresies, and I have all of Logos' works by Origen. I tried looking it up online, but no success either. I checked Against Celsus in case they are the same works, but there are only 8 books, and chapter 9 in the first book can't be right either.
Any suggestions?