Memoirs of Frederick Perthes, or, Literary, religious, and political life in Germany, from 1789 to 1843 was a literary work by the 19th century author Clement Theodore Perthes.
On the trip to Starbase 515 in 2365, Jean-Luc Picard was reading volume two of this work. (TNG: "Samaritan Snare")
The page Picard is seen reading is page 226. It can be found here.