Scientific Progress

[Mark Knowles]

Would your artist have had that information?

I am only vaguely familiar with the specific aspect of the manuscript you refer to, so I don't want to state an opinion on that.

However on the basis of my understanding of what you have said I see no reason why, if what you have said is the case, my author should not have had access to such knowledge along with a number of other people, I would guess. The Barbavara brothers were known for their large collection of manuscripts. According to my theory the author(s) travelled extensively in Switzerland, including Geneva in French Switzerland, and spent a significant amount of time Basel. I have no reason to believe that my author(s) were ever in Paris; it is possible, but it does not fit in neatly with my theory.