 Dupuy's classification is still regarded with respect, but the inventory has been partially replaced by the publication of the "Layettes du trésor" (four volumes, coming down to 1270; 1863-1902).Dupuy also published, with his brother Jacques, and their friend Nicolas Rigault, the "History" of Aug. de Thou (1620, 1626).The two brothers then bought from Rigault the post of keeper of the king's library, and drew up a catalogue of the library (Nos.