 Arnauld opened a different line of attack in his Dissertation sur les miracles le l’ancien loi. This new attack is directed against the occasionalism which is assumed in Malebranche’s account of the wisdom of God’s ways of creating. In a foreword to the Dissertation, Arnauld says that he had completed his treatment of the first two books of the Réflexions, and was beginning work on the third, when he received the fourth edition of the  Treatise:[30]