"Yes, from two hundred to four hundred francs."
"Why is there such a difference in the price?"
"Because of the margins."
"Ah! the margins?"
"All the value of an Elzevir consists in the width of its margins; the wider they are, the dearer the Elzevir. An Elzevir without a margin is worth next to nothing; they measure the margins with compasses, and, according as they have twelve, fifteen or eighteen lines, the Elzevir is worth two hundred, three hundred, four hundred and even six hundred francs."
"Six hundred francs!... I am of Madame Méchin's way of thinking."
"And what was Madame Méchin's way of thinking?"
"Madame Méchin is a very witty woman."
"Yes, I am aware of that."