Voynichese is a numeric cipher?

[oshfdk]

That's true. If we accept my assumption that the balneological section is an anatomy, then there can be no "fire" or "earth" there, because this is not an alchemy textbook. It's most likely an allegory for humors, as you have noticed. However, I believe that it is more important to identify the meaning of the word than to accurately identify what the author drew.

It is, I'm just cautioning against treating image cribs naively. If it shows a can of Coke, we can't simply assume that the label says 'a can of Coke'.