Pages 48-53 (Chapters 20-22)
The 20th chapter begins with the comparison of two architectural designs of pillars: that of Anderea Palladio and Scamozzi. He assumes that they inspired by one another in their doings. He then points out the differences in the degree of ornamentation the two pillars have and raises the question of which of those were fitting better into the Ionique Order. The next page contains an illustration of two similar looking pillars, though some differences are clearly visible : the embellishment and the amount of layers at the socle of the pillar.
The 21st chapter consists of Fréarts judgement of the two pillars. He says that the one on the left is heavily inspired by Vitruvius as well Serlio Cataneo. The second pillar on the other hand is not worthy of imitation and has no worth at all and is grossly composed. The text is once again followed by an illustration of two pillars.
The 22nd chapter explains the order of the Cayatides : Columns sculpted as female figures. Fréart criticizes that many modern architects use these columns even though they can only be used in very few occasions.