Fr Schofield over at the Roman Miscellany has been browsing through the Internet Archive and found some gems. He has listed them in his post Online Library. This is the link to get you straight to the Text Archive. (some of the stuff listed on the front page of the main archive is not very nice.)
I was particularly delighted to find Challenor's Garden of the Soul. I used to have an old copy of this but lost it some years ago.