18th century violin intonation and 55-tET

Wandering over to John Starrett's site, I saw he linked to a page
called "Why I hate Valotti". There are two interesting links:

A diagram of violin intonation (clearly intended to be extended
meantone, looks roughly golden) by Prelleur:

http://www-midischool.cwru.edu/Duffin/Vallotti/56K/prelleur.html

A quick description of 55-tET in the context of 18th century music:

http://www-midischool.cwru.edu/Duffin/Vallotti/56K/55division.html