[split] Did the VM go straight from cerebellum to vellum?

[Jorge_Stolfi]

The 'ignorant scribe' theory is about as old as the concept of Voynich discussion groups. It has some attractive aspects, but mainly to be able to sweep some things we don't understand under the carpet...

I wonder how many Medieval manuscripts on vellum there were (or still exist) that were penned by the authors of their contents themselves?  Rather than by a distinct scribe?

Roger Bacon was a monk, so perhaps he did scribe the final copy of his manuscripts himself. (But there is no surviving manu propria manuscript of his, is there?)

That closing rubric on Bonaventura Dyalogus, which I posted before, seems to be an example of a scribe professionally copying text that he did not understand.  Are there other examples? Possibly examples where the scribe did not even know how to read the text aloud -- like  a scribe copying a Greek, Hebrew, or Cyrillic text without knowing the sounds of the letters?

All the best, --stolfi