„Arabischer Sprachführer für Reisende“ (Arabic Phrasebook for Travelers) compiled by Martin Hartmann in 1881 is now digitally available on MENAdoc.
Martin Hartmann was one of the founders of modern Islamic Studies before the First World War. He was one of the few Orientalists who worked on the spot for a long time and knew the conditions.
The German Fraktur font of the book was converted to full text by OCR software. The results are pretty good compared to the version on archive.org.