Since uploading the translated file of Gustav Volkmar’s Mark and the Synopsis of the Gospels I have made a few additions, corrections and clearer translations to it. I will be regularly updating this file over the next however long so check regularly for the latest version if you are reading or consulting it. The latest version is updated today, 28th September. There will be more updated versions. You may need to clear your cache each time to be sure you open or download the most recent version.
http://vridar.info/xorigins/Volkmar/Volkmar-Mark1876.pdf