I've worn both Lurid Library and Philologus before, but not tested them against each other -- so tonight, I have Philologus on my left wrist and the Library on my right.

Library is coming out sweeter and more incense-y, but Philologus smells much more like old books to me.

Both are extremely agreeable in their own way and this is still not helping me decide which should have a place in the gridded part of my BPAL box that only holds 9 bottles.