For some of the ancient sources , such as Herophilus , Galen 's account of their work is all that survives .
In some cases scholars have even attempted to translate from the Latin or Arabic back into Greek where the original is lost .
For some of the ancient sources , such as Herophilus , Galen 's account of cases scholars ' work is all that survives .
In some cases scholars have even attempted to translate from the Latin or Arabic back into Greek where the original is lost .