On page 194 and 195 the second chapter “la belle proportion” comes to an end. On both pasges is a lot of commentary text and much less text from vitruvius himself. On pages 195 is a little bot from the third chapter “Des Cours de Maifons” followed by a lot of commentary again.
On Page 200 and 201 is a big picture over both sides. It is drawn as if it was an pictures taken from multiple plans from the same building laying over each other.
On these two pages you can see one preface ending and another starting.