Henri Pène du Bois, Historical essay on the art of bookbinding… (1883)
“ To De Thou’s folio copy of the “Historia Piscium” of Salvianus, purchased at the Edwards sale for the Fonthill collection, has been accorded the palm of superior merit of all books of that age now extant. De Thou’s binders had profited by the example of Grolier’s, and in their hands the art of binding in morocco seemed to have attained perfection. ”
